CN205941385U - Endoscopic type cable corrosion detection device - Google Patents
Endoscopic type cable corrosion detection device Download PDFInfo
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- CN205941385U CN205941385U CN201620600536.1U CN201620600536U CN205941385U CN 205941385 U CN205941385 U CN 205941385U CN 201620600536 U CN201620600536 U CN 201620600536U CN 205941385 U CN205941385 U CN 205941385U
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- peeping type
- inner peeping
- detection device
- cable
- ccd sensor
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Abstract
The utility model discloses it detects and supports and maintain management area, concretely relates to endoscopic type cable corrosion detection device mainly to belong to the cable. Detection device include slider with be used for gathering await measuring in the cable steel wire surface morphology and corrosion state diagram like miniature endoscopic type image device, miniature endoscopic type image device fixed connection is in slider is last, miniature endoscopic type image device includes lighting system, optical system, CCD sensor triplex, optical system includes reflecting prism and changes like lens, reflecting prism with the CCD sensor sets up respectively miniature endoscopic type image device's both ends, from reflecting prism one end to CCD sensor one end sets gradually reflecting prism, lighting system, commentaries on classics like lens and CCD sensor. Detection device has advantages such as detection area is big, detection efficiency is high, the reliability is high, the suitability is strong, the installation is simple, the small practical application of being convenient for, low cost.
Description
Technical field
This utility model principally falls into cable inspection and foster maintenance management field and in particular to a kind of inner peeping type cable corrosion
Detection means.
Background technology
Bridge cable under arms during easily there is Damage of Corroded, mainly relevant with the safeguard procedures that cable is taken.In recent years
Commonly used hot extrusion high density polyethylene (HDPE) sheath is protected, and cable body is made up of parallel high strength steel silk, line structure corrosion
Damage check is had with monitoring method：
(1) manual method：Mainly possible corrosion degree in it is judged according to the outward appearance breakage of cable body.Observe shield
The surface condition of set, according to circumstances to analyze and to determine whether to be necessary to open anchorage zone or the high-density polyethylene by damaged part
Alkene sheath position is cut open, is directly viewable steel wire corrosion and the situation of fracture of wire.Steel wire can be sampled simultaneously, carry out correlation test test,
Determine mechanical properties of wires under this state.This method is directly perceived, convenient, but cuts sheath open and steel wire sampling can be caused to cable body
Damage.
(2) ultrasonic method：It is mainly used to detect parallel steel wire face crack, rust hole, but because cable is parallel by many
Steel wire or steel strand wires composition, cross sectional shape is complicated, Damage of Corroded position does not know, and ultrasound wave is only capable of detecting surface defect, this
Outward, anchor head position is complex-shaped, and ultrasound examination has larger blind area.
(3) radiate line method：The number of drawbacks of the detectable cable body of radiation technique and damage.Its Cleaning Principle is to work as ray
During by accepting the object detecting, the rejected region of object and zero defect position are different to the absorbability of ray, lead to
In the case of often, the transmitted intensity through defective position is higher than the transmitted intensity at zero defect position, is therefore passed through by detection and connects
The difference of the transmitted intensity after examined object is it can be determined that whether defective presence in object.But for radiation-screening,
X-ray apparatus is often larger.
(4) Suo Lifa：Main change according to Suo Li judges cable body Damage of Corroded, because corrosion leads to section of steel wire to lose,
The rigidity of rope changes, and leads to Suo Li to change, specifically can be using the cable tension test based on vibration, magnetic flux cable tension test
And various cable tension sensor detects Suo Li, but the method is used for detecting that the susceptiveness of cable Damage of Corroded is low.
(5) electrochemical method：Electrochemical method mainly for single steel bar or steel strand wires, to many parallel steel wires or
Its Detection results of cable of steel strand wires composition are not good enough, and especially present assessment method is substantially that the scope according to potential difference judges
The probability of the corrosion of cable, but the such as impact such as temperature, humidity of tested person regional area environmental factorss is notable.
(6) fiber grating monitoring method being expanded based on corrosion：Such method is based primarily upon reinforcing bar and is subject to erosion mechanism of intumescence, its
Concrete cushion avoids interference corrosion interface, but ventilative glue-line and the optical fiber being wound around substantially have impact on the intrusion of ion, with
There is difference in true corrosive environment, and expansion is limited by concrete extrusion, and its susceptiveness and effectiveness wait engineering practice examining.
(7) supersonic guide-wave method：Domestic at present also have the monitoring steel bar corrosion method based on ultrasonic guided wave technique for the research, but should
Method is the reinforcing bar for full-scale length, is not a kind of product sensor, when in for concrete, there is guided wave letter
Number leakage, the faint and complicated weak point of the guided wave signals that sensor receives is it is difficult to be applied in Practical Project.In addition,
Steel wire is solid cylinder, and the guided wave propagated in steel wire is in available frequency range mode very many (up to more than ten mode), letter
Number can be more complicated.
(8) Magnetic sensing methods.Magnetic sensing methods using basis be cable ferromagnetic characteristic.With a permanent magnet
Cable is magnetized by energized circuit, and when cable moves with respect to energized circuit, as long as running into fracture of wire, incision position will produce outwards
The stray field of leakage；If the cross section metal gross area changes in cable, the main magnetic flux in energized circuit will change therewith
Become.The method can carry out Non-Destructive Testing, and fracture of wire detection sensitivity is high, but accuracy of detection is subject to external interference big.
For the problems referred to above, need a kind of cable rust detection device of exploitation badly, for the regular Non-Destructive Testing of bridge cable.
Utility model content
Determine to realize steel wire corrosion state in bridge cable anchoring section and free segment and corrosion degree are realized visualizing
Phase Non-Destructive Testing, this utility model provides a kind of inner peeping type cable rust detection device, and described detection means has detection zone
Greatly, detection efficiency height, reliability height, strong applicability, install detection means volume that is simple, being used little just in practical application,
The advantages of with low cost；The regular nothing of steel wire corrosion state in cable can be realized in the case of not destroying cable body internal medium
Damage detection.
This utility model is achieved through the following technical solutions：
A kind of inner peeping type cable rust detection device, described detection means includes carriage and is used for gathering cable to be measured
Interior Steel Wire Surface pattern and the miniature inner peeping type imaging device of corrosion state image, described miniature inner peeping type imaging device is fixing even
It is connected on described carriage；Described miniature inner peeping type imaging device includes illuminator, optical system, ccd sensor three
Point, described optical system includes reflecting prism and image rotation lenses, and described reflecting prism and described ccd sensor are separately positioned on institute
State the two ends of miniature inner peeping type imaging device, from reflecting prism one end to described ccd sensor one end set gradually reflecting prism,
Illuminator, image rotation lenses and ccd sensor.
Described carriage can move along length of warping winch direction.
Described illuminator is using at least one LED as light source；
Described ccd sensor is high-resolution digital formula photoelectric coupled device, is used for converting light signals into the signal of telecommunication.
Described detection means also includes hand held image acquisition equipment.
The signal of telecommunication produced by described ccd sensor transmits via data line and sets to described hand held image acquisition
Standby.
The quantity of described miniature inner peeping type imaging device is two or more.
Each miniature inner peeping type imaging device 6 is separately fixed on a carriage.
Described detection means also includes Temperature Humidity Sensor, and Temperature Humidity Sensor is arranged on detection zone cable high density and gathers
Between ethylene sheath and steel wire.
Advantageous Effects of the present utility model：
(1) detection means described in the utility model have that detection zone is big, detection efficiency is high, reliability is high, strong applicability,
Install simple, small volume be easy to practical application, with low cost the advantages of；
(2) this utility model realizes miniature inner peeping type imaging device along length of warping winch direction by the setting of carriage
Mobile；And in the circumferentially disposed multiple slidably devices of cable and miniature inner peeping type imaging device, increase cable internal corrosion inspection
Survey region；
(3) device described in the utility model passes through to arrange Temperature Humidity Sensor, improves the reliability of rust detection and is suitable for
Property；And the follow-up developments of steel wire corrosion can be evaluated, if humidity is high in cable, corrosion tendency is strong, Corrosion developing
Speed is fast, should reduce detection cycle in follow-up service phase, increases detection frequency, after formulating reasonably according to current detection situation
Continuous detection scheme, can be follow-up cable mechanics Performance Evaluation and cable is changed and provided scientific basis；
(4) described miniature inner peeping type imaging device and carriage can be arranged on high density polyethylene (HDPE) sheath and cable
Between, small volume, in the protection system not destroying cable, under conditions of not destroying local environment in cable, realize steel wire in cable
Corrosion state and the periodic detection of corrosion degree；
Brief description
Fig. 1 miniature inner peeping type imaging device schematic diagram；
Fig. 2 carriage, miniature inner peeping type imaging device and steel wire relative position schematic diagram；
Fig. 3 carriage, miniature inner peeping type imaging device and steel wire relative position profile；
In Fig. 4 cable, schematic diagram arranged by miniature inner peeping type imaging device；
In Fig. 5 cable, profile arranged by miniature inner peeping type imaging device；
Reference：1. reflecting prism, 2. LED light source, 3. image rotation lenses, 4.CCD sensor, 5. data
Transmission line, 6. miniature inner peeping type imaging device, 7. steel wire, 8. carriage, 9. cable, 10. anchor cup, 11. anchor backing plates, 12.
Anchor circle, 13. bonnets, 14. hand held image acquisition equipment, 15. Temperature Humidity Sensors, 16. high density polyethylene (HDPE) sheaths.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is explained in further detail to this utility model.It should be appreciated that specific embodiment described herein is used only for explaining
This utility model, is not used to limit this utility model.
On the contrary, this utility model cover any be defined by the claims do in spirit and scope of the present utility model
Replacement, modification, equivalent method and scheme.Further, in order that the public has a better understanding to this utility model, right below
In detailed description of the present utility model, detailed describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand this utility model completely.
Embodiment 1
As Figure 1-5, a kind of inner peeping type cable rust detection device, described detection means includes carriage 8 and uses
In the miniature inner peeping type imaging device 6 gathering Steel Wire Surface pattern and corrosion state image in cable to be measured, described miniature interior peep
Formula imaging device 6 is fixedly connected on described carriage 8；Described miniature inner peeping type imaging device 6 includes illuminator, optics
System, ccd sensor three part, described optical system includes reflecting prism 1 and image rotation lenses 3, described reflecting prism 1 and described
Ccd sensor 4 is separately positioned on the two ends of described miniature inner peeping type imaging device 6, passes to described CCD from reflecting prism 4 one end
Sensor 4 one end sets gradually reflecting prism 4, illuminator, image rotation lenses 3 and ccd sensor 4.Wherein, described reflecting prism 1
For changing imaging direction, described image rotation lenses 3 are used for the imaging of steel wire to be measured.
Described carriage 8 can move along cable 9 length direction；Increased miniature inner peeping type imaging device 6 along cable
The detection zone of rope length direction；During detection, control described miniature inner peeping type imaging device 6 adjacent with steel wire to be measured in cable 9.
, using at least one LED light source 2 as light source, brightness is adjustable, for ensureing for described illuminator
Uniform illumination in visual field；
Described ccd sensor 4 is high-resolution digital formula photoelectric coupled device, is used for converting light signals into the signal of telecommunication；
Choose in the present embodiment that diameter is little, the technical grade CCD of high definition, imaging pixel 400,000；
Described detection means also includes hand held image acquisition equipment 14.
Produced by described ccd sensor 4, the signal of telecommunication transmits via data line 5 and sets to described hand held image acquisition
Standby 14.
The quantity of described miniature inner peeping type imaging device 6 is two or more, in detection, along cable 9 ring
Arrange two or more described miniature inner peeping type imaging devices 6, and described miniature inner peeping type imaging device 6 is positioned at highly dense
Between degree pe sheath 16 and steel wire 7；Each miniature inner peeping type imaging device 6 is separately fixed on a carriage；Increase
The detection zone scope of steel wire corrosion in cable, lifts cable rust detection efficiency.
Each miniature inner peeping type imaging device 6 is separately fixed on a carriage 8.
Rust detection region setting Temperature Humidity Sensor 15 between high density polyethylene (HDPE) sheath 16 and steel wire 7, improves
The reliability of rust detection and the suitability.In the compound Temperature Humidity Sensor 15 of cable inspection region setting, can be used for judging rust
The condition of erosion development, improves the reliability of cable rust detection.
Claims (9)
1. a kind of inner peeping type cable rust detection device is it is characterised in that described detection means includes carriage and is used for adopting
Collect the miniature inner peeping type imaging device of Steel Wire Surface pattern and corrosion state image in cable to be measured, described miniature inner peeping type imaging
Device is fixedly connected on described carriage；Described miniature inner peeping type imaging device includes illuminator, optical system, CCD
Sensor three part, described optical system includes reflecting prism and image rotation lenses, and described reflecting prism and described ccd sensor divide
It is not arranged on the two ends of described miniature inner peeping type imaging device, set successively to described ccd sensor one end from reflecting prism one end
Put reflecting prism, illuminator, image rotation lenses and ccd sensor.
2. according to claim 1 a kind of inner peeping type cable rust detection device it is characterised in that described carriage can
Move along length of warping winch direction.
3. according to claim 1 a kind of inner peeping type cable rust detection device it is characterised in that described illuminator adopt
At least one LED is as light source.
4. according to claim 1 a kind of inner peeping type cable rust detection device it is characterised in that described ccd sensor is
High-resolution digital formula photoelectric coupled device, is used for converting light signals into the signal of telecommunication.
5. according to claim 4 a kind of inner peeping type cable rust detection device it is characterised in that described detection means is also wrapped
Include hand held image acquisition equipment.
6. according to claim 5 a kind of inner peeping type cable rust detection device it is characterised in that described ccd sensor institute
The signal of telecommunication producing transmits to described hand held image acquisition equipment via data line.
7. according to claim 1 a kind of inner peeping type cable rust detection device it is characterised in that described miniature inner peeping type becomes
As the quantity of device is two or more.
8. according to claim 7 a kind of inner peeping type cable rust detection device it is characterised in that each miniature inner peeping type becomes
As device is separately fixed on a carriage.
9. according to claim 1 a kind of inner peeping type cable rust detection device it is characterised in that described detection means is also wrapped
Include Temperature Humidity Sensor, be arranged between detection zone cable high density polyethylene (HDPE) sheath and steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620600536.1U CN205941385U (en) | 2016-06-17 | 2016-06-17 | Endoscopic type cable corrosion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620600536.1U CN205941385U (en) | 2016-06-17 | 2016-06-17 | Endoscopic type cable corrosion detection device |
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| Publication Number | Publication Date |
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| CN205941385U true CN205941385U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620600536.1U Active CN205941385U (en) | 2016-06-17 | 2016-06-17 | Endoscopic type cable corrosion detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174852A (en) * | 2021-03-10 | 2021-07-27 | 西安理工大学 | Cable-stay bridge cable monitoring and maintaining device |
-
2016
- 2016-06-17 CN CN201620600536.1U patent/CN205941385U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174852A (en) * | 2021-03-10 | 2021-07-27 | 西安理工大学 | Cable-stay bridge cable monitoring and maintaining device |
| CN113174852B (en) * | 2021-03-10 | 2022-09-30 | 西安理工大学 | Cable-stay bridge cable monitoring and maintaining device |
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