CN103670473A - Anchor bolt fastening force status indication washer - Google Patents
Anchor bolt fastening force status indication washer Download PDFInfo
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- CN103670473A CN103670473A CN201310624415.1A CN201310624415A CN103670473A CN 103670473 A CN103670473 A CN 103670473A CN 201310624415 A CN201310624415 A CN 201310624415A CN 103670473 A CN103670473 A CN 103670473A
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- light
- indicator lamp
- led indicator
- contact switch
- pressing body
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- 238000012856 packing Methods 0.000 claims description 39
- 238000007639 printing Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 229920001651 Cyanoacrylate Polymers 0.000 claims description 14
- 239000004830 Super Glue Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000013536 elastomeric material Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 15
- 230000005489 elastic deformation Effects 0.000 description 10
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 7
- 239000011354 acetal resin Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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- 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
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- 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)
- Push-Button Switches (AREA)
Abstract
The invention provides an anchor bolt fastening force status indication washer comprising a deforming unit and an electric control unit. The deforming unit comprises an upper squeeze part, a lower squeeze part and a bearing part. The electric control unit comprises a circuit board, a photosensitive switch, a pre-tightening force compliance indicator, an anchor bolt breakage warning indicator, and a power source. The pre-tightening force compliance indicator and the anchor bolt breakage warning indicator parallelly connected to a circuit, the power source, and the photosensitive switch form a complete loop. The outer surface of the washer is smooth, and the washer has the functions of quantizing anchor bolt pre-tightening force, warning on anchor bolt breakage, eliminating friction between a nut and a tray and enhancing shear resistance of the tray, and is applicable to industrial popularization and application.
Description
Technical field
The present invention relates to bolt support field, refer to especially a kind of anchor pole fastening force state indication packing ring.
Background technology
Along with Roadway Support Technology constantly improves and innovation, the development of anchoring theoretical level, roadway bolt supporting prestressed anchorage technology application technology level also, constantly improving, is widely used in many underground engineering field such as tunnel, building, mine now.Along with economic fast development, society increases day by day to the demand of the energy, and superficial part is easily adopted resource exhaustion increasingly, cannot meet the needs of economic development, therefore the scale in mine constantly expands, mine also advances to deep gradually fast, and at present domestic and international mine is all in the exploitation of carrying out deep resource.Traditional bolt support technology cannot adapt to the requirement that deep tunnel stability is controlled, and high-intensity prestressed anchor has formed modern bolt support system, for safety, fast, digging laneway provides an effective way economically.
Bolt support is as a kind of active and supporting timely, is mainly reflected in bolt support system roadway surrounding rock is applied to larger, preliminary bracing resistance timely, and preliminary bracing resistance has improved the self-supporting ability of country rock, has effectively controlled deformation of the surrounding rock in tunnel.The preliminary bracing resistance of bolt support system is that the first anchor-hold by anchor pole produces, and the first anchor-hold of anchor pole is applied to that pretightning force on anchor pole produces during by skyhook.Therefore, bolt pretension is to embody the initiative of bolt support, the important indicator of promptness.Reasonably pretightning force can improve the self-supporting ability of country rock, guarantees that whole bolt support system gives full play to supporting usefulness.
Yet in the engineering practices such as tunnelling, the pretightning force often anchor pole being applied does not have a kind of understanding intuitively, There is no way to begin always for its actual quantization, the monitoring of pretightning force, quantize more difficult; And on-the-spot moment of torsion discriminant approach and the relation between pretightning force that is easy to adopt do not have clear and definite judgment criterion, workman just applies pretightning force by personal experience, in addition existing bolt pretension construction equipment horizontal constraints, easily cause bolt pretension not reach the pretightning force of enough values or each anchor pole not of uniform size, be unfavorable for the resistance to overturning of roadway support; And, between anchor nut and pallet, there is frictional force, because the horizontal frictional force existing between anchor nut and pallet has formed friction torque, subdued the prefastening torque that construction equipment provides, can cause bolt pretension to decline.In addition, the body of rod is as the main body of anchor pole, stressed when excessive when anchor rod body, exceeds its ultimate tensile strength and is pulled off, and easily causes anchor rod body from country rock, to eject the accident of hurting sb.'s feelings; Pallet is subject to shearing action and breaks, and easily causes anchoring body to lose efficacy.Therefore, develop a kind of anchor pole fastening force state indication servicing unit and have very important practice significance.
Summary of the invention
The present invention proposes a kind of anchor pole fastening force state indication packing ring, solved the problem that cannot anchor pole fastening force state be indicated and be detected in prior art, had and quantize the effect that bolt pretension, early warning anchor pole were broken, eliminated the frictional force between nut and pallet and strengthen the shear resistance of pallet.
Technical scheme of the present invention is achieved in that a kind of anchor pole fastening force state indication packing ring, comprises deformation unit and ECU, and described deformation unit comprises pressing body, lower pressing body and pressure-bearing body; Described ECU comprises circuit board, light-inductive switch, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply; Described pretightning force indicating device up to standard and described anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of described power supply and described light-inductive switch complete.
Preferably, described pretightning force indicating device up to standard comprises high contact switch and yellow led indicator lamp, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch and red LED indicator lamp; Described high contact switch and short contact switch are controlled respectively yellow led indicator lamp and red LED indicator lamp.
Preferably, described upper pressing body, described lower pressing body and described pressure-bearing body are that the material with good elastic-plastic deformation performance is made, and described material is specially POM, polytetrafluoroethylene (PTFE) or iron; Described upper pressing body, described lower pressing body and described pressure-bearing body profile are the cylinder of concentric hollow; Described power supply is specially button cell or battery.
Preferably, described upper pressing body and described lower pressing body are specially iron plate, and described pressure-bearing body is specially spring; Described high contact switch is that elastomeric material is increased structure or elastic device is increased structure, is specially rubber or spring.
Preferably, described circuit board is fixedly mounted on described lower pressing body by the mode of screw, super glue or the two combination; Described high contact switch and described short contact switch are fixedly mounted on circuit board by the mode of screw, super glue or the two combination; Described high contact switch is higher than short contact switch, and both form parallel circuit.
Preferably, described light-inductive switch is controlled described yellow led indicator lamp and described red LED indicator lamp simultaneously, or described light-inductive switch is specifically split as two light-inductive switches, be used for respectively controlling described yellow led indicator lamp and described red LED indicator lamp; Described upper pressing body is provided with for the light-inductive switch loophole of light-inductive switch printing opacity with for the LED light loophole of yellow led indicator lamp, red LED indicator lamp printing opacity; The aperture of described light-inductive switch loophole is greater than light-inductive switch, and the aperture of LED light loophole is greater than described yellow led indicator lamp and described red LED indicator lamp.
Preferably, described high contact switch is replaced by top electrode, and described short contact switch is replaced by bottom electrode.
Preferably, described yellow led indicator lamp and described red LED indicator lamp are replaced by buzzer structure.
Preferably, also comprise protected location, described protected location comprises wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that described shell is arranged on described indication packing ring.
Preferably, also comprise for preventing that described indication packing ring is by the cylindrical iron ring concentric with described indication packing ring of pressure break.
The invention provides a kind of anchor pole fastening force state indication packing ring, be applied to the geotechnical engineering prestressed anchor support technologies such as coal mine roadway, indication packing ring can show whether bolt pretension meets Design of bolt support to prestressed requirement intuitively, and indicator lamp is shinny shows that pretightning force has reached setting value; When anchor pole tension will reach its tension ultimate strength, indicator lamp can early warning.The overall structure that the present invention is comprised of three concentric hollow cylinders of upper, middle and lower, wherein top and the bottom are symmetrical pressing body, and mid portion is pressure-bearing body, and said structure body adopts the material with good Elastoplastic Performances in Simulation to make; In addition, above-mentioned material has the frictional force effect of eliminating between nut and pallet and the shear resistance that strengthens pallet.
Beneficial effect of the present invention is:
1) the present invention has used light-inductive switch and LED light, has so just solved because of head-room excessively, checks the problem of rockbolt stress situation inconvenience; Meanwhile, light-inductive switch is controlled by light, and while there is no light-illuminating, light-inductive switch is in normally open, and LED light is extinguished, and can effectively extend like this application life of power supply.
2) the present invention can quantize bolt pretension, and when bolt pretension reaches setting value, indication packing ring can be pointed out and reached the pretightning force value setting, and can guarantee that like this bolt pretension reaches enough values; The present invention arranges early warning value and is less than body of rod ultimate tensile strength, can be pulled off destruction by early warning anchor rod body, when body of rod tension will reach its ultimate tensile strength, indication packing ring can give warning in advance, remind workman to take measures, avoid the body of rod to be pulled off suddenly and eject and hurt sb.'s feelings.
3) the present invention mainly adopts the material with good elastic-plastic deformation performance, and the anti-pressure ability that such material unit area produces elastic deformation is higher.Smooth surface, can play the effect of antifriction packing ring in addition, has eliminated the end-face friction between nut and pallet, and the in the situation that of identical mounting torque, the pretightning force of anchor pole significantly improves, and low mounting torque can be realized high pretightning force.
4) smooth outer surface of the present invention and wear-resisting, by add the shear resistance of indication packing ring enhancing pallet between nut and pallet, can prevent tray failure.Pallet is to produce the requisite member of anchored force, if pallet breaks, easily causes mistake anchor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of anchor pole fastening force of the present invention state indication packing ring;
Fig. 2 is the rough schematic of circuit board 4 in the state of anchor pole fastening force shown in Fig. 1 indication packing ring;
Fig. 3 is the structured flowchart of the state of anchor pole fastening force shown in Fig. 1 indication packing ring;
Fig. 4 is the structural representation of the state of anchor pole fastening force shown in Fig. 1 indication packing ring shell.
In figure:
1, upper pressing body; 2, lower pressing body; 3, pressure-bearing body; 4, circuit board; 5, power supply; 6, high contact switch; 7, short contact switch; 8, light-inductive switch; 9, yellow led indicator lamp; 10, red LED indicator lamp; 11, light-inductive switch loophole; 12, LED light loophole; 13, iron ring.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Circuit board 4 is screwed and is arranged on lower pressing body 2.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is fixedly mounted on lower pressing body 2 by super glue; High contact switch 6 and short contact switch 7 are screwed and are arranged on circuit board 4; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.
Light-inductive switch 8 is controlled yellow led indicator lamp 9 and red LED indicator lamp 10 simultaneously.Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), surface light face is processed, and forms the surface texture that reduces frictional force.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially battery.Circuit board 4 is fixedly mounted on lower pressing body 2 by screw and super glue; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.High contact switch 6 is increased structure for elastomeric material, and upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 profiles are the cylinder of concentric hollow.Circuit board 4 comprises pad, via hole, installing hole, wire, components and parts, connector, filling and electrical equipment border.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially macromolecular material, and as polytetrafluoroethylene (PTFE), surface light face is processed, and forms the surface texture that reduces frictional force.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.High contact switch 6 is increased structure for elastic device, and upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 profiles are the cylinder of concentric hollow.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially iron, and upper pressing body 1 and lower pressing body 2 are specially iron plate, and pressure-bearing body 3 is specially spring.Spring and iron plate are welded to form deformation unit.
During skyhook, the present invention is sleeved on to anchor pole afterbody, between nut and pallet.While applying pretightning force to anchor pole, the 3 pressurized generation elastic deformations of pressure-bearing body, upper pressing body 1, lower pressing body 2 distances reduce, trigger high contact switch 6, now with mine lamp, irradiate light-inductive switch 8, power supply 5 gives yellow led indicator lamp 9 power supplies, and yellow led indicator lamp 9 lights, and shows that bolt pretension has reached requirement.After working face extraction, affected by abutment pressure, pressure-bearing body 3 pressurizeds further produce transverse deformation, upper pressing body 1, lower pressing body 2 distances are dwindled thereupon, when pressure-bearing body 3 deflections reach setting value, trigger short contact switch 7, now with mine lamp, irradiate light-inductive switch 8, power supply 5 gives red LED indicator lamp 10 power supplies, and red LED indicator lamp 10 lights, and shows that the suffered pulling force of anchor pole is about to reach its ultimate tensile strength.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.
Light-inductive switch 8 is controlled yellow led indicator lamp 9 and red LED indicator lamp 10 simultaneously.Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), high contact switch 6 is increased structure for elastomeric material, is specially rubber.
When prefastened power is qualified, the high contact switch 6 of upper pressing body 1 extruding is controlled yellow led indicator lamp 9 and is lighted; Before anchor pole is subject to its ultimate tensile strength, when suffered pulling force approaches its Fracture Force, the short contact switch 7 of upper pressing body 1 extruding is controlled red LED indicator lamp 10 and is lighted.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.Circuit board 4 is provided with two installing holes, mainly pad, via hole, installing hole, wire, components and parts, connector, filling, electrical equipment border etc., consists of.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), surface light face is processed, and forms the surface texture that reduces frictional force.This material has the frictional force effect of eliminating between nut and pallet and the shear resistance that strengthens pallet simultaneously.High contact switch 6 is increased structure for elastic device, is specially spring.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
As described in Fig. 1～4, the present invention includes deformation unit, ECU and protected location, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Circuit board 4 is screwed and is arranged on lower pressing body 2.Protected location comprises by wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that shell is arranged on indication packing ring.
As described in Fig. 1～4, the present invention includes deformation unit, ECU and protected location, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Circuit board 4 is screwed and is arranged on lower pressing body 2.Protected location comprises by wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that shell is arranged on indication packing ring.The present invention also comprises for preventing from indicating packing ring by pressure break and iron ring 13 indication packing ring concentric column.Circuit board 4 is provided with two installing holes, mainly pad, via hole, installing hole, wire, components and parts, connector, filling, electrical equipment border etc., consists of.
As described in Fig. 1～4, the present invention includes deformation unit, ECU and protected location, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.Protected location comprises by wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that shell is arranged on indication packing ring.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), high contact switch 6 is increased structure for elastic device, is specially spring.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
The performances such as explosion-resistant enclosure is equipped with in indication packing ring outside, and it is explosion-proof, antistatic, fire-retardant that explosion-resistant enclosure has, meet the requirement of safety regulations in coal mine completely, and explosion-resistant enclosure is provided with the loophole of light-inductive switch and LED light equally.Equally, outer the putting of steel body protection is provided with the protection structure that light-inductive switch loophole 11 and LED light loophole 12 match.Upper pressing body 1 part of shell has two breach, and object is reserved loophole, conveniently checks.Just glow color is different for yellow led indicator lamp 9, red LED indicator lamp 10, and other parameters are all identical.
During skyhook, the present invention is sleeved on to anchor pole afterbody, between nut and pallet.While applying pretightning force to anchor pole, the 3 pressurized generation elastic deformations of pressure-bearing body, upper pressing body 1, lower pressing body 2 distances reduce, trigger high contact switch 6, now with mine lamp, irradiate light-inductive switch 8, power supply 5 gives yellow led indicator lamp 9 power supplies, and yellow led indicator lamp 9 lights, and shows that bolt pretension has reached requirement.After working face extraction, affected by abutment pressure, pressure-bearing body 3 pressurizeds further produce transverse deformation, upper pressing body 1, lower pressing body 2 distances are dwindled thereupon, when pressure-bearing body 3 deflections reach setting value, trigger short contact switch 7, now with mine lamp, irradiate light-inductive switch 8, power supply 5 gives red LED indicator lamp 10 power supplies, and red LED indicator lamp 10 lights, and shows that the suffered pulling force of anchor pole is about to reach its ultimate tensile strength.
As described in Fig. 1～4, the present invention includes deformation unit, ECU and protected location, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and red LED indicator lamp 10; High contact switch 6 and short contact switch 7 are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.Protected location comprises by wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that shell is arranged on indication packing ring.The present invention also comprises for preventing from indicating packing ring by the cylindrical iron ring 13 concentric with indication packing ring of pressure break.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.Shell is provided with the loophole corresponding with light-inductive switch loophole 11 and described LED light loophole 12.
Pressure-bearing body 3 pressurizeds produce elastic deformation, and its different deformation values has reflected the pressure of its suffered different sizes, and deformation is larger, and pressure is larger; Through test of many times, derive the corresponding relation of deformation values and force value, with this, decide the distance of high contact switch 6, short contact switch 7 and upper pressing body 1.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), high contact switch 6 is increased structure for elastic device, is specially spring.
During skyhook, anchor pole passes from the hollow part of pressing body of the present invention and pressure-bearing body, by construction equipment, anchor pole is applied to pretightning force, when bolt pretension reaches setting value, pressurized of the present invention produces lateral deformation, and the distance between upper pressing body and lower pressing body reduces, high contact switch contact, after light-inductive switch is irradiated by mine lamp, yellow led indicator lamp lights, and illustrates that now bolt support pretightning force reaches designing requirement; After working face extraction, affected by abutment pressure, rockbolt stress strengthens, distance between upper pressing body and lower pressing body further reduces, when the suffered pulling force of anchor pole will reach its ultimate tensile strength, short contact switch contact, after light-inductive switch is irradiated by mine lamp, red LED indicator lamp lights, illustrate that anchor pole is about to be pulled off, remind field personnel to take measures in time.
Embodiment 11
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises superior pole piece and yellow led indicator lamp 9, and anchor pole is disrumpent feelings, and early warning indicating device comprises inferior pole piece and red LED indicator lamp 10; Superior pole piece and inferior pole piece are controlled respectively yellow led indicator lamp 9 and red LED indicator lamp 10.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; Superior pole piece and inferior pole piece are fixedly mounted on circuit board 4 by screw and super glue; Superior pole piece is higher than inferior pole piece, and both form parallel circuit.
Light-inductive switch 8 is specially two light-inductive switches, is used for respectively controlling yellow led indicator lamp 9 and red LED indicator lamp 10; Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the LED light loophole 12 of yellow led indicator lamp 9, red LED indicator lamp 10 printing opacities; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of LED light loophole 12 is greater than yellow led indicator lamp 9 and red LED indicator lamp 10.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), this material has the frictional force effect of eliminating between nut and pallet and the shear resistance that strengthens pallet simultaneously.Superior pole piece is that elastic device is increased structure, is specially spring.
Top electrode is arranged on pressing body 1, and bottom electrode is arranged on lower pressing body 2.At ordinary times, two plate electrodes do not contact, when being subject to sizable extruding force, and two plate electrode contacts, LED light place closing of circuit.
Yellow led indicator lamp in above embodiment can replace with green LED indicator lamp.
As described in Fig. 1～3, the present invention includes deformation unit and ECU, deformation unit comprises pressing body 1, lower pressing body 2 and pressure-bearing body 3; ECU comprises circuit board 4, light-inductive switch 8, pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply 5; Pretightning force indicating device up to standard and anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of power supply 5 and light-inductive switch 8 completes.Pretightning force indicating device up to standard comprises high contact switch 6 and the first buzzer, and anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch 7 and the second buzzer; High contact switch 6 and short contact switch 7 are controlled respectively the first buzzer and the second buzzer.Power supply 5 is specially button cell.Circuit board 4 is screwed and is arranged on lower pressing body 2; High contact switch 6 and short contact switch 7 are fixedly mounted on circuit board 4 by screw and super glue; High contact switch 6 is higher than short contact switch 7, and both form parallel circuit.Circuit board 4 is provided with two installing holes, mainly pad, via hole, installing hole, wire, components and parts, connector, filling, electrical equipment border etc., consists of.
Light-inductive switch 8 is controlled the first buzzer and the second buzzer simultaneously.Upper pressing body 1 is provided with for the light-inductive switch loophole 11 of light-inductive switch 8 printing opacities with for the loophole 12 of the first buzzer, the second buzzer printing opacity; The aperture of light-inductive switch loophole 11 is greater than light-inductive switch 8, and the aperture of loophole 12 is greater than the first buzzer and the second buzzer.
Upper pressing body 1, lower pressing body 2 and pressure-bearing body 3 are made for having the material of good elastic-plastic deformation performance, are specially POM(acetal resin), this material has the frictional force effect of eliminating between nut and pallet and the shear resistance that strengthens pallet simultaneously.High contact switch 6 is increased structure for elastomeric material, is specially rubber.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. anchor pole fastening force state is indicated a packing ring, it is characterized in that: comprise deformation unit and ECU,
Described deformation unit comprises pressing body (1), lower pressing body (2) and pressure-bearing body (3);
Described ECU comprises circuit board (4), light-inductive switch (8), pretightning force indicating device up to standard, anchor pole is disrumpent feelings early warning indicating device and power supply (5); Described pretightning force indicating device up to standard and described anchor pole are disrumpent feelings, and early warning indicating device is connected in parallel in circuit, with the loop of described power supply (5) and described light-inductive switch (8) complete.
2. a kind of anchor pole fastening force state according to claim 1 is indicated packing ring, it is characterized in that: described pretightning force indicating device up to standard comprises high contact switch (6) and yellow led indicator lamp (9), anchor pole is disrumpent feelings, and early warning indicating device comprises short contact switch (7) and red LED indicator lamp (10); Described high contact switch (6) and short contact switch (7) are controlled respectively yellow led indicator lamp (9) and red LED indicator lamp (10).
3. a kind of anchor pole fastening force state according to claim 2 is indicated packing ring, it is characterized in that: described upper pressing body (1), described lower pressing body (2) and described pressure-bearing body (3) are made for having the material of elastic-plastic deformation performance, and described material is specially POM, polytetrafluoroethylene (PTFE) or iron; Described upper pressing body (1), described lower pressing body (2) and described pressure-bearing body (3) profile are the cylinder of concentric hollow; Described power supply (5) is specially button cell or battery.
4. a kind of anchor pole fastening force state indication packing ring according to claim 2, is characterized in that: described upper pressing body (1) and described lower pressing body (2) are specially iron plate, and described pressure-bearing body (3) is specially spring; Described high contact switch (6) is increased structure or elastic device is increased structure for elastomeric material, is specially rubber or spring.
5. a kind of anchor pole fastening force state indication packing ring according to claim 2, is characterized in that: described circuit board (4) is fixedly mounted on described lower pressing body (2) by the mode of screw, super glue or the two combination; Described high contact switch (6) and described short contact switch (7) are fixedly mounted on circuit board (4) by the mode of screw, super glue or the two combination; Described high contact switch (6) is higher than short contact switch (7), and both form parallel circuit.
6. a kind of anchor pole fastening force state according to claim 2 is indicated packing ring, it is characterized in that: described light-inductive switch (8) is controlled described yellow led indicator lamp (9) and described red LED indicator lamp (10) simultaneously, or described light-inductive switch (8) is specifically split as two light-inductive switches, be used for respectively controlling described yellow led indicator lamp (9) and described red LED indicator lamp (10); Described upper pressing body (1) is provided with for the light-inductive switch loophole (11) of light-inductive switch (8) printing opacity with for the LED light loophole (12) of yellow led indicator lamp (9), red LED indicator lamp (10) printing opacity; The aperture of described light-inductive switch loophole (11) is greater than light-inductive switch (8), and the aperture of LED light loophole (12) is greater than described yellow led indicator lamp (9) and described red LED indicator lamp (10).
7. an anchor pole fastening force state indication packing ring according to claim 2, is characterized in that: described high contact switch (6) is replaced by top electrode, and described short contact switch (7) is replaced by bottom electrode.
8. an anchor pole fastening force state indication packing ring according to claim 2, is characterized in that: described yellow led indicator lamp (9) and described red LED indicator lamp (10) are replaced by buzzer structure.
9. according to a kind of anchor pole fastening force state indication packing ring described in claim 1～8 any one, it is characterized in that: also comprise protected location, described protected location comprises wear-resisting steel body protection overcoat, for explosion-proof, antistatic and fire-retardant shell with for moistureproof transparent colloid interstitital texture; It is outside that described shell is arranged on described indication packing ring.
10. a kind of anchor pole fastening force state indication packing ring according to claim 9, is characterized in that: also comprise for preventing that described indication packing ring is by the cylindrical iron ring (13) concentric with described indication packing ring of pressure break.
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| CN106968696A (en) * | 2017-04-21 | 2017-07-21 | 中国矿业大学 | A kind of anchor pole packing ring changed colour at various pressures and its application method |
| CN109026107A (en) * | 2018-09-21 | 2018-12-18 | 北方工业大学 | Switch type anchor rod cable stress measuring device |
| CN109458204A (en) * | 2018-09-21 | 2019-03-12 | 北方工业大学 | A kind of bolt cable stress measuring device that can emit light and early warning |
| CN109780029A (en) * | 2019-01-09 | 2019-05-21 | 烟台中天连接技术研究院 | A Mechanoluminescent Smart Bolt with Pre-tightening Force Indication |
| CN109838259A (en) * | 2019-02-22 | 2019-06-04 | 北方工业大学 | A photoelectric coupling sensor intelligent support anchor system |
| CN110513386A (en) * | 2019-08-27 | 2019-11-29 | 航天精工股份有限公司 | A kind of pretightning force instruction washer and its application method |
| EP3472585A4 (en) * | 2016-06-21 | 2020-02-19 | Alert Technologies Inc. | MEASURING DEVICE FOR ROCK ANCHORS |
| CN110940448A (en) * | 2019-11-28 | 2020-03-31 | 明达海洋工程有限公司 | Anchor rod axial force alarm device |
| CN111472825A (en) * | 2020-04-22 | 2020-07-31 | 辽宁工程技术大学 | An automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
| CN113380013A (en) * | 2021-06-09 | 2021-09-10 | 重庆大学 | Bolt pre-tightening force alarm ring piece with installation prompting function and installation method thereof |
| CN113465903A (en) * | 2021-07-30 | 2021-10-01 | 重庆深赛科技有限公司 | Bolt tightness intelligent detection piece |
| CN113380012B (en) * | 2021-06-09 | 2023-11-07 | 重庆大学 | Contact type fixed-load intelligent early warning nut and installation method thereof |
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| CN105675201B (en) * | 2016-01-05 | 2018-02-06 | 太原理工大学 | Unidirectional force monitoring device and monitoring method |
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| CN106968696B (en) * | 2017-04-21 | 2019-02-19 | 中国矿业大学 | Anchor washer that changes color under different pressures and method of using the same |
| CN109458204A (en) * | 2018-09-21 | 2019-03-12 | 北方工业大学 | A kind of bolt cable stress measuring device that can emit light and early warning |
| CN109026107A (en) * | 2018-09-21 | 2018-12-18 | 北方工业大学 | Switch type anchor rod cable stress measuring device |
| CN109780029A (en) * | 2019-01-09 | 2019-05-21 | 烟台中天连接技术研究院 | A Mechanoluminescent Smart Bolt with Pre-tightening Force Indication |
| CN109838259A (en) * | 2019-02-22 | 2019-06-04 | 北方工业大学 | A photoelectric coupling sensor intelligent support anchor system |
| CN109838259B (en) * | 2019-02-22 | 2021-04-02 | 北方工业大学 | A photoelectric coupling sensor intelligent support anchor system |
| CN110513386A (en) * | 2019-08-27 | 2019-11-29 | 航天精工股份有限公司 | A kind of pretightning force instruction washer and its application method |
| CN110940448A (en) * | 2019-11-28 | 2020-03-31 | 明达海洋工程有限公司 | Anchor rod axial force alarm device |
| CN111472825B (en) * | 2020-04-22 | 2021-12-28 | 辽宁工程技术大学 | Automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN111472825A (en) * | 2020-04-22 | 2020-07-31 | 辽宁工程技术大学 | An automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
| CN113380013A (en) * | 2021-06-09 | 2021-09-10 | 重庆大学 | Bolt pre-tightening force alarm ring piece with installation prompting function and installation method thereof |
| CN113380013B (en) * | 2021-06-09 | 2023-11-03 | 重庆大学 | Bolt pretightening force alarm ring piece with installation prompt function and installation method thereof |
| CN113380012B (en) * | 2021-06-09 | 2023-11-07 | 重庆大学 | Contact type fixed-load intelligent early warning nut and installation method thereof |
| CN113465903A (en) * | 2021-07-30 | 2021-10-01 | 重庆深赛科技有限公司 | Bolt tightness intelligent detection piece |
| CN113465903B (en) * | 2021-07-30 | 2025-05-09 | 重庆深赛科技有限公司 | Intelligent detection of bolt tightness |
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Effective date of registration: 20160906 Address after: 271000 Shandong high tech Zone, Xiang Xiang Road, west of the North Branch of the planning branch Applicant after: UROICA (SHANDONG) DEEP GROUND PRESSURE CONTROL AND SAFETY TECHNOLOGY CO.,LTD. Address before: 271000 Shandong high tech Zone, Xiang Xiang Road, west of the North Branch of the planning branch Applicant before: UROICA MINING SAFETY ENGINEERING Co.,Ltd. |
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Address after: 271000 North of Fengxiang Road, Tai'an High-tech Zone, Shandong Province Patentee after: YOULUOKA (SHANDONG) MINING INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 271000 North of Fengxiang Road, Tai'an High-tech Zone, Shandong Province Patentee before: Euloka (Shandong) Environmental Engineering Co.,Ltd. Address after: 271000 North of Fengxiang Road, Tai'an High-tech Zone, Shandong Province Patentee after: Euloka (Shandong) Environmental Engineering Co.,Ltd. Address before: 271000 North of Fengxiang Road, Tai'an High-tech Zone, Shandong Province Patentee before: UROICA (SHANDONG) DEEP GROUND PRESSURE CONTROL AND SAFETY TECHNOLOGY CO.,LTD. |