CN109458204A - Anchor rod cable stress measuring device capable of giving out light and giving out early warning - Google Patents
Anchor rod cable stress measuring device capable of giving out light and giving out early warning Download PDFInfo
- Publication number
- CN109458204A CN109458204A CN201811106657.0A CN201811106657A CN109458204A CN 109458204 A CN109458204 A CN 109458204A CN 201811106657 A CN201811106657 A CN 201811106657A CN 109458204 A CN109458204 A CN 109458204A
- Authority
- CN
- China
- Prior art keywords
- tabletting
- early warning
- face
- pressing
- measurement device
- 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.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims description 49
- 238000007906 compression Methods 0.000 claims description 49
- 238000005259 measurement Methods 0.000 claims description 27
- 238000005166 mechanoluminescence Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000005424 photoluminescence Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 14
- 230000003760 hair shine Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention provides a luminous early warning anchor rod cable stress measuring device which comprises a first pressing sheet and a second pressing sheet, wherein a first through hole is formed in the first pressing sheet, a first flange is arranged at the upper end of the first pressing sheet, a first pressing column is arranged on the lower surface of the first flange, a second through hole is formed in the second pressing sheet, a second flange is arranged at the lower end of the second pressing sheet, a second pressing column is arranged on the upper surface of the second flange, the first pressing sheet and the second pressing sheet are arranged in a fit mode, the first pressing column corresponds to the second pressing column in position, and a force-induced luminous film is arranged between the first pressing column and the second pressing column. The first pressing piece and the second pressing piece are attached together, the upper surface of the first pressing piece and the lower surface of the second pressing piece are stressed respectively, the first pressing piece and the second pressing piece are extruded, deformation is generated between the first pressing piece and the second pressing piece, and when a set pressure value is reached, the force-induced luminous film emits light to remind monitoring personnel to play a role in warning stress overload.
Description
Technical field
The invention belongs to mine bolt or anchor cable stress variation monitoring device fields, and in particular to a kind of early warning that can shine
Anchor pole rope stress measurement device.
Background technique
Existing anchor pole or anchor cable monitoring device are made of sensor and display instrument two parts, this traditional detection instrument
Mainly there is following deficiency:
Firstly, equipment is than cumbersome, it is inconvenient for operation while also not readily portable when monitoring use.
Second, traditional monitoring device component is more, and structure is complicated, and high production cost.
Third, traditional monitoring equipment state decision process is cumbersome, influences to determine the time, needs professional operator.
Summary of the invention
It is an object of the invention to solve above-mentioned problem existing in the prior art, a kind of anchor pole of early warning that can shine is provided
Rope stress measurement device, opposite sliding between first sleeve and second sleeve, in sliding, measurement sensor can measure first
The relative distance of sleeve and second sleeve sliding, to realize the displacement monitoring of rock mass.
The present invention is achieved by the following technical solutions:
A kind of anchor pole rope stress measurement device for the early warning that shines, including the first tabletting and the second tabletting, first pressure
On piece is equipped with first through hole, and the upper end of first tabletting is equipped with the first flange, and the lower surface of first flange is equipped with the
One compression leg, second tabletting are equipped with the second through-hole, and the lower end of second tabletting is equipped with the second flange, second flange
Upper surface be equipped with the second compression leg, first tabletting and the second tabletting fitting setting, first compression leg and the second compression leg
Position is corresponding, and mechanoluminescence film is equipped between first compression leg and the second compression leg.First tabletting is bonded with the second tabletting
Together, make the upper surface of the first tabletting and the lower surface stress of the second tabletting respectively, the first tabletting and the second tabletting are carried out
It squeezes, makes to generate deformation between the first tabletting and the second tabletting, when a setup pressure value is reached, mechanoluminescence film shines, and reminds
Monitoring personnel plays stress overload warning function.
The material of the mechanoluminescence film is that power causes color changing material.Color changing material is caused using power, it can be in mechanoluminescence film
Color change is generated when stress, testing staff is reminded, and is played a warning role.
Binding face between first tabletting and the second tabletting is tapered surface.It is bonded using tapered surface, it can be first
When tabletting and the second tabletting are pressurized, it can play the guiding role in the axial direction to the first tabletting and the second tabletting, avoid pressure
It is excessive to cause to break away between the first tabletting and the second tabletting.
The taper of the tapered surface is 30 °.The tilt angle of tapered surface between first tabletting and the second tabletting is arranged
At 30 °, enough pressure can either be born, and can play the guiding role to the first tabletting and the second tabletting.
Binding face between first tabletting and the second tabletting is broken line type face.It is adopted between first tabletting and the second tabletting
It with fold-line-shaped plane, can either play the guiding role in the axial direction to the first tabletting and the second tabletting, and the first tabletting can be prevented
And second generate axial-rotation between tabletting, guarantee the first compression leg and the second compression leg to neutrality.
The broken line angle in the broken line type face is 60 °.By the angle in the fold-line-shaped face between the first tabletting and the second tabletting
It is arranged to 60 degree, the axial force between the first tabletting and the second tabletting can either be born, and can guarantee the intensity of sawtooth, avoided
Hackle distortion.
Binding face between first tabletting and the second tabletting is seam allowance face.Patch between first tabletting and the second tabletting
Conjunction face uses seam allowance face, generates sliding when can be avoided the first tabletting and the second tabletting stress.
The vertical circumferential face in the seam allowance face is equipped with guide groove.It is set on the seam allowance face that the first tabletting and the second tabletting contact
Guide groove is set, can prevent that axial-rotation occurs between the first tabletting and the second tabletting, is guaranteed between the first compression leg and the second compression leg
Accurate positioning.
The guide groove is polygon or arc.It is easy to process using polygon or arc, save production cost.
The height of the male half coupling in the seam allowance face is greater than the height of concave mouth.The height in male half coupling face is set to be greater than concave mouth
Highly, only have a faying face between such first tabletting and the second tabletting, under same stress condition, can be improved the first tabletting
And the second deformation quantity between tabletting, keep the luminous intensity of mechanoluminescence film more obvious.
Compared with prior art, the beneficial effects of the present invention are:
1, the anchor pole rope stress measurement device of a kind of early warning that can shine of the invention, the first tabletting is bonded with the second tabletting
Together, make the upper surface of the first tabletting and the lower surface stress of the second tabletting respectively, the first tabletting and the second tabletting are carried out
It squeezes, makes to generate deformation between the first tabletting and the second tabletting, when a setup pressure value is reached, mechanoluminescence film shines, and reminds
Monitoring personnel plays stress overload warning function；
2, a kind of anchor pole rope stress measurement device of early warning that can shine of the invention, mechanoluminescence film become material using power coloring
Material causes color changing material using power, can generate color change in mechanoluminescence film stress, remind testing staff, rises
To warning function；
3, the anchor pole rope stress measurement device of a kind of early warning that can shine of the invention, is adopted between the first tabletting and the second tabletting
It is bonded with tapered surface, can be when the first tabletting and the second tabletting be pressurized, it can be to the first tabletting and the second tabletting in axis side
It play the guiding role upwards, avoids pressure is excessive from causing to break away between the first tabletting and the second tabletting；
4, the anchor pole rope stress measurement device of a kind of early warning that can shine of the invention, is adopted between the first tabletting and the second tabletting
It with fold-line-shaped plane, can either play the guiding role in the axial direction to the first tabletting and the second tabletting, and the first tabletting can be prevented
And second generate axial-rotation between tabletting, guarantee the first compression leg and the second compression leg to neutrality；
5, the anchor pole rope stress measurement device of a kind of early warning that can shine of the invention, between the first tabletting and the second tabletting
Binding face uses seam allowance face, generates sliding when can be avoided the first tabletting and the second tabletting stress.
6, the anchor pole rope stress measurement device of a kind of early warning that can shine of the invention, contacts in the first tabletting and the second tabletting
Seam allowance face on guide groove is set, can prevent that axial-rotation occurs between the first tabletting and the second tabletting, guarantee the first compression leg and
Accurate positioning between second compression leg.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is vertical section structure schematic diagram of the invention；
Fig. 3 is cross section structure schematic diagram of the invention；
Fig. 4 is fold-line-shaped binding face schematic diagram of the invention；
Fig. 5 is fold-line-shaped binding face vertical section structure schematic diagram of the invention；
Fig. 6 is fold-line-shaped binding face cross section structure schematic diagram of the invention；
Fig. 7 is conical surface binding face overall schematic of the invention；
Fig. 8 is conical surface binding face vertical section structure schematic diagram of the invention；
Fig. 9 is conical surface binding face cross section structure schematic diagram of the invention；
Figure 10 is seam allowance binding face overall structure diagram of the invention；
Figure 11 is seam allowance binding face vertical section structure schematic diagram of the invention；
Figure 12 is seam allowance binding face cross section structure schematic diagram of the invention；
Figure 13 is triangle guide barrel construction schematic diagram of the invention；
Figure 14 is arc guide barrel structural schematic diagram of the invention；
Figure 15 is quadrangle guide barrel construction schematic diagram of the invention；
Wherein, the 1, first tabletting, the 2, first compression leg, 3, mechanoluminescence film, the 4, second compression leg, the 5, second tabletting, 6, fitting
Face, the 7, second through-hole, 8, first through hole, 9, concave mouth, 10, male half coupling, 11, guide groove.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing:
Embodiment 1:
As shown in Figure 1-3, a kind of anchor pole rope stress measurement device for the early warning that can shine, including the first tabletting and the second pressure
Piece, first tabletting are equipped with first through hole, and the center of the first tabletting top surface is arranged in first through hole, and first through hole runs through
Entire first tabletting, the upper end of first tabletting are equipped with the first flange, and the first flange forms step at the top of the first tabletting,
The lower surface of first flange is equipped with the first compression leg, and first compression leg is equipped with multiple, and the first compression leg is located at always
On the circumference of diameter, the first compression leg is uniformly distributed on the first flange, there are four the first compression leg is set in the application, it is adjacent push down between be in
90 ° uniformly distributed, and second tabletting is equipped with the second through-hole, and the center of the second tabletting bottom surface is arranged in the second through-hole, and second is logical
Entire second tabletting is run through in hole, and the lower end of second tabletting is equipped with the second flange, bottom shape of second flange in the second tabletting
At step, the upper surface of second flange is equipped with the second compression leg, and second compression leg is equipped with multiple, and the second compression leg is located at
On the circumference of same diameter, the second compression leg is uniformly distributed on the second flange, adjacent to push down it there are four the second compression leg is set in the application
Between it is uniformly distributed in 90 °, the position of the second compression leg is corresponding with the position of the first compression leg, i.e. circle diameter where the first compression leg and the
Circle diameter where two compression legs is equal, and first tabletting and the second tabletting fitting setting, the first compression leg and the second compression leg paste
The part of conjunction forms a binding face, and first compression leg and the second compression leg position are corresponding, first compression leg and the second pressure
Mechanoluminescence film is equipped between column.First tabletting and the second tabletting are fit together, make respectively the first tabletting upper surface and
The lower surface stress of second tabletting, squeezes the first tabletting and the second tabletting, makes to produce between the first tabletting and the second tabletting
Raw deformation, when a setup pressure value is reached, mechanoluminescence film shines, and reminds monitoring personnel, plays stress overload warning function.
The mechanoluminescence membrane forces cause color changing material.Color changing material is caused using power, can be produced in mechanoluminescence film stress
Raw color change, reminds testing staff, plays a warning role, and in the application, mechanoluminescence film uses H-OPV/LLDPE
Power causes color changing material.
Embodiment 2:
A kind of anchor pole rope stress measurement device for the early warning that shines, as Figure 7-9, as a kind of improvement of embodiment 1,
Binding face between first tabletting and the second tabletting is set as tapered surface, i.e. the lower end of the first tabletting is arranged to outwardly protrude
Vertebra platform, the upper end of the second tabletting is arranged to the corresponding recessed cone chamber of frustum with protrusion, alternatively, the lower end of the first tabletting
It is arranged to recessed cone chamber, the upper end of the second tabletting is arranged to the vertebra platform outwardly protruded corresponding with recessed cone chamber.Using
Tapered surface fitting, can be when the first tabletting and the second tabletting be pressurized, can be to the first tabletting and the second tabletting in axis direction
On play the guiding role, avoid pressure is excessive from causing to break away between the first tabletting and the second tabletting.The taper of the tapered surface
It is 30 °.The tilt angle of tapered surface between first tabletting and the second tabletting is arranged to 30 °, enough pressures can either be born
Power, and can play the guiding role to the first tabletting and the second tabletting.Other structures are same as Example 1, and details are not described herein.
Embodiment 3:
A kind of anchor pole rope stress measurement device for the early warning that shines, as Figure 4-Figure 6, as a kind of improvement of embodiment 1,
It is broken line type face by the binding face between first tabletting and the second tabletting.That is the lower end of the first tabletting is arranged to the shape of sawtooth
Shape, sawtooth are dissipated outward by the center of the first tabletting, and the second tabletting is equipped with and matches with the zigzag fashion in the first tabletting
Sawtooth, in this way, binding face is broken line type face after the first tabletting and the second tabletting fitting, the first tabletting and the second tabletting it
Between use fold-line-shaped plane, can either play the guiding role in the axial direction to the first tabletting and the second tabletting, and first can be prevented
Generate axial-rotation between tabletting and the second tabletting, guarantee the first compression leg and the second compression leg to neutrality.The broken line type face
Broken line angle is 60 °, i.e., it is 60 ° that the two of the tooth form of sawtooth side, which is formed by angle,.It will be between the first tabletting and the second tabletting
The angle in fold-line-shaped face be arranged to 60 degree, the axial force between the first tabletting and the second tabletting can either be born, and can protect
The intensity for demonstrate,proving sawtooth, avoids hackle distortion.
Embodiment 4:
A kind of anchor pole rope stress measurement device for the early warning that shines, as shown in figs. 10-12, one kind as embodiment 1 changes
Into the binding face between first tabletting and the second tabletting is seam allowance face.Male half coupling is set in the bottom of the first tabletting,
Concave mouth is arranged in the top of second tabletting, alternatively, concave mouth is arranged in the bottom of the first tabletting, is arranged at the top of the second tabletting
Male half coupling, male half coupling and concave mouth cooperate, and the outer circumference surface of male half coupling and the inner peripheral surface fitting of concave mouth form seam allowance
Face, while the top of male half coupling is contacted with the bottom of concave mouth, the binding face between the first tabletting and the second tabletting uses seam allowance
Face generates sliding when can be avoided the first tabletting and the second tabletting stress.
As illustrated in figs. 13-15, the vertical circumferential face in the seam allowance face is equipped with guide groove.It is connect in the first tabletting and the second tabletting
Guide groove is set on the seam allowance face of touching, can prevent that axial-rotation occurs between the first tabletting and the second tabletting, guarantees the first compression leg
And the second accurate positioning between compression leg.The guide groove is polygon or arc.Triangle guide groove can be used in the application, or
Person's quadrangle guide groove or circular guide, the arc length of circular guide are a part of full circle perimeter length, using polygon or
Arc, it is easy to process, save production cost.
As shown in figure 11, the height of the male half coupling in the seam allowance face is greater than the height of concave mouth.Make the height in male half coupling face
Greater than the height of concave mouth, only have a faying face between such first tabletting and the second tabletting, it, can under same stress condition
The deformation quantity between the first tabletting and the second tabletting is improved, keeps the luminous intensity of mechanoluminescence film more obvious.
A kind of anchor pole rope stress measurement device for the early warning that shines, when in use, after the first tabletting and the second tabletting fitting,
It is installed as support anchor rod gasket or be clipped between gasket, the first tabletting and the second tabletting are able to bear pretightning force and bolt shaft
To the stress of measurement, after support anchor rod installation, the first tabletting and the second tabletting contact portion bear pretightning force, at this point, first
Mechanoluminescence film between compression leg and the second compression leg is not subject to pressure, when support anchor rod is by axial stress, the first tabletting and
Second tabletting is extruded under the action of axial stress, and the distance between the first compression leg and the second compression leg reduce at this time, causes power
Luminescent film is by certain pressure, and when pressure is more than the luminescence threshold pressure of mechanoluminescence film, mechanoluminescence film shines, to prison
Survey personnel remind, and realize the effect of light-emitting caution.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application method and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent method described in above-mentioned specific embodiment, therefore previously described mode is only preferred, and and do not have limitation
The meaning of property.
Claims (10)
- The anchor pole rope stress measurement device of early warning 1. one kind can shine, which is characterized in that including the first tabletting and the second tabletting, institute The first tabletting is stated equipped with first through hole, the upper end of first tabletting is equipped with the first flange, the lower surface of first flange It is equipped with the first compression leg, second tabletting is equipped with the second through-hole, and the lower end of second tabletting is equipped with the second flange, described The upper surface of second flange be equipped with the second compression leg, first tabletting and the second tabletting fitting setting, first compression leg and Second compression leg position is corresponding, and mechanoluminescence film is equipped between first compression leg and the second compression leg.
- The anchor pole rope stress measurement device of early warning 2. one kind according to claim 1 can shine, which is characterized in that the power The material power of photoluminescence film causes color changing material.
- The anchor pole rope stress measurement device of early warning 3. one kind according to claim 1 can shine, which is characterized in that described Binding face between one tabletting and the second tabletting is tapered surface.
- The anchor pole rope stress measurement device of early warning 4. one kind according to claim 3 can shine, which is characterized in that the cone The taper in shape face is.
- The anchor pole rope stress measurement device of early warning 5. one kind according to claim 1 can shine, which is characterized in that described Binding face between one tabletting and the second tabletting is broken line type face.
- The anchor pole rope stress measurement device of early warning 6. one kind according to claim 5 can shine, which is characterized in that the folding The broken line angle in line style face is 60 °.
- The anchor pole rope stress measurement device of early warning 7. one kind according to claim 1 can shine, which is characterized in that described Binding face between one tabletting and the second tabletting is seam allowance face.
- The anchor pole rope stress measurement device of early warning 8. one kind according to claim 7 can shine, which is characterized in that described to stop The vertical circumferential face in mouth face is equipped with guide groove.
- The anchor pole rope stress measurement device of early warning 9. one kind according to claim 8 can shine, which is characterized in that described to lead Slot is polygon or arc.
- The anchor pole rope stress measurement device of early warning 10. one kind according to claim 7 can shine, which is characterized in that described The height of the male half coupling in seam allowance face is greater than the height of concave mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106657.0A CN109458204A (en) | 2018-09-21 | 2018-09-21 | Anchor rod cable stress measuring device capable of giving out light and giving out early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106657.0A CN109458204A (en) | 2018-09-21 | 2018-09-21 | Anchor rod cable stress measuring device capable of giving out light and giving out early warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109458204A true CN109458204A (en) | 2019-03-12 |
Family
ID=65606861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811106657.0A Pending CN109458204A (en) | 2018-09-21 | 2018-09-21 | Anchor rod cable stress measuring device capable of giving out light and giving out early warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114582094A (en) * | 2022-02-28 | 2022-06-03 | 京东方科技集团股份有限公司 | Early warning lighting device and early warning lighting device group |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN104697674A (en) * | 2015-02-01 | 2015-06-10 | 山东科技大学 | Anchor rod stress testing device and application method thereof |
| CN106198382A (en) * | 2016-08-31 | 2016-12-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of friction rock bolt anchoring body safety testing method and device |
| CN206233943U (en) * | 2016-11-24 | 2017-06-09 | 山东科技大学 | A kind of novel anchor rod for showing pulling force size suffered by anchor pole afterbody |
| CN107083980A (en) * | 2017-06-15 | 2017-08-22 | 湖南科技大学 | The country rock disaster alarm method and anchoring prior-warning device of a kind of roadway supported by bolt |
| CN107119523A (en) * | 2017-04-03 | 2017-09-01 | 复旦大学 | It is a kind of that there is light-emitting device of mechanical force-responsive and preparation method thereof |
| CN206638375U (en) * | 2017-04-17 | 2017-11-14 | 安徽福淮矿山科技有限公司 | A kind of anchor pole intelligent early-warning stressometer |
| WO2017214639A1 (en) * | 2016-06-09 | 2017-12-14 | Ncm Innovations (Pty) Ltd | Progressive load indicator |
| CN207882477U (en) * | 2018-03-18 | 2018-09-18 | 传鸿新材料科技（上海）有限公司 | A kind of novel flexible luminescent film |
-
2018
- 2018-09-21 CN CN201811106657.0A patent/CN109458204A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN104697674A (en) * | 2015-02-01 | 2015-06-10 | 山东科技大学 | Anchor rod stress testing device and application method thereof |
| WO2017214639A1 (en) * | 2016-06-09 | 2017-12-14 | Ncm Innovations (Pty) Ltd | Progressive load indicator |
| CN106198382A (en) * | 2016-08-31 | 2016-12-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of friction rock bolt anchoring body safety testing method and device |
| CN206233943U (en) * | 2016-11-24 | 2017-06-09 | 山东科技大学 | A kind of novel anchor rod for showing pulling force size suffered by anchor pole afterbody |
| CN107119523A (en) * | 2017-04-03 | 2017-09-01 | 复旦大学 | It is a kind of that there is light-emitting device of mechanical force-responsive and preparation method thereof |
| CN206638375U (en) * | 2017-04-17 | 2017-11-14 | 安徽福淮矿山科技有限公司 | A kind of anchor pole intelligent early-warning stressometer |
| CN107083980A (en) * | 2017-06-15 | 2017-08-22 | 湖南科技大学 | The country rock disaster alarm method and anchoring prior-warning device of a kind of roadway supported by bolt |
| CN207882477U (en) * | 2018-03-18 | 2018-09-18 | 传鸿新材料科技（上海）有限公司 | A kind of novel flexible luminescent film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114582094A (en) * | 2022-02-28 | 2022-06-03 | 京东方科技集团股份有限公司 | Early warning lighting device and early warning lighting device group |
| CN114582094B (en) * | 2022-02-28 | 2024-04-12 | 京东方科技集团股份有限公司 | Early warning lighting device and early warning lighting device group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109458204A (en) | Anchor rod cable stress measuring device capable of giving out light and giving out early warning | |
| CY1105689T1 (en) | SAFETY DEVICE BY A SAFETY SYRINGE | |
| CN109026107B (en) | Switch type anchor rod cable stress measuring device | |
| CN104568274A (en) | Anchoring force pre-warning device for anchor rod | |
| CN208251051U (en) | Static sounding device is used in a kind of test | |
| CN110848616B (en) | Detachable wind-resistant street lamp | |
| CN208131299U (en) | A kind of flow chamber nozzle of blood analysis | |
| CN206029748U (en) | Pneumatic pull -out ware | |
| CN204405021U (en) | The quick decision maker of china bowl peristoma circularity grade | |
| CN210800304U (en) | Novel cutting sleeve type pipe joint | |
| CN209247025U (en) | It is a kind of to be easy to the fixed measuring mark post of road and bridge construction | |
| CN207066404U (en) | A kind of strain transducer based on image recognition | |
| CN202582451U (en) | Gauge measuring P value of precision fastener | |
| CN206618365U (en) | A kind of quick detection piston ring assembles the simple frock of post gap | |
| CN206593548U (en) | The micrometer of measurable internal thread many kinds of parameters | |
| CN205919829U (en) | Be applied to warning sleeve pipe of building surveying system | |
| CN205593465U (en) | Bearing inner race seal groove diameter measuring caliper | |
| CN218847507U (en) | Visual early warning nut | |
| CN204738823U (en) | Novel mining hydraulic prop | |
| CN201892506U (en) | Integrated measuring head for measuring span of measuring ball of external gear | |
| CN209468080U (en) | A kind of Mine anchorage cable tensioner dynamometry jack | |
| CN201757405U (en) | Infrared dry-burning-resistant high-efficient burner | |
| CN220932060U (en) | RTK measuring rod | |
| CN219527754U (en) | Pile foundation measuring mechanism | |
| CN218864983U (en) | Hoisting machinery structure deformation detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190312 |