CN1441241A - Bidirectional umbrella-shaped pipe-detecting reducing device - Google Patents
Bidirectional umbrella-shaped pipe-detecting reducing device Download PDFInfo
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- CN1441241A CN1441241A CN 03116293 CN03116293A CN1441241A CN 1441241 A CN1441241 A CN 1441241A CN 03116293 CN03116293 CN 03116293 CN 03116293 A CN03116293 A CN 03116293A CN 1441241 A CN1441241 A CN 1441241A
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Abstract
The present invention relates to mechanical technology and is one umbrella-shaped reducing device for pipe detection. The present invention includes guide shaft connected to universal shaft coupling; small box and large box clearance fitted with and fixed to the guide shaft; support rod with one end connected to the notched blocks inside the small box and large box and the other end connected to the roller and the sensor; and sensor fixed onto the installing frame and compression spring set inside the large box; and all these together with the pipe constitute one umbrella-shaped structure. The present invention is not affected by the deformations in pipe and is suitable for detection of pipes with different diameters without replacing parts.
Description
Technical field
What the present invention relates to is a kind of pipe detection diameter changing device, and particularly a kind of two-way umbrella formula pipe detection diameter changing device that can be applicable to the different-diameter pipeline belongs to mechanical field.
Background technology
In general, offshore oilfield pipeline has 3 kinds: internal diameter is respectively φ 195mm, φ 247mm, φ 296mm, is prone to faults such as leakage when petroleum pipe line is long neglected and in disrepair.Offshore oilfield pipeline is carried out projects such as wall thickness, crackle when detecting, the influence of need overcome petroleum pipe line section deformation, inwall 5mm projection or pit, crossing factors such as bend pipe using many group sonacs or leakage field sensor etc.; The number of sensors that this device is used during simultaneously owing to detection is more, and cost is higher, thus should not make the pick-up unit of serial size, so require a pick-up unit can be applicable to the detection of different-diameter offshore oilfield pipeline.This pick-up unit is at a kind of pipe applications of diameter sometimes, but under a lot of situations pipe applications at different-diameter, even when the pipeline with a kind of diameter uses this technology, also need to consider the influence that manufacturing, distortion inaccuracy and the pipeline corner geometric configuration of pipeline are brought.Find by literature search, Chinese patent application number is: 99257673.3 utility model patent, patent name is: medical expansion human pipeline reducing support, this patent readme is: a kind of medical expansion human pipeline reducing support, its tube wall is the waveform reticulate texture of hollow out, net ring element and Connection Element by disjunctor are formed, top net ring end face is concordant, the profile that entire bracket net ring expands is the shape of the reducing along its length of the frustum of a cone or cylinder and combination thereof, adapts to the objective reality that human pipeline's diameter and physical property change at length direction better; In addition, Chinese patent application number is 89213690.1 utility model patent, a kind of reducer pipe sound suppressor is disclosed, mainly constitute by the gradually little tapered tube in one or more cross sections, its reducing mainly is to change at the duct orientation upper section by tapered tube to realize, make the air flow inlet diameter greater than outlet diameter, the processing of eliminating the noise then.The reducing technology that these patents realize all is that the variation by the diameter of section of the frustum of a cone realizes, if it is less that this technology is used for above-mentioned internal diameter, change so big, and the influence that brings of manufacturing, distortion inaccuracy and the pipeline corner geometric configuration that will consider pipeline, with many groups sensor pipeline being detected, is impossible realize.
Summary of the invention
The objective of the invention is to overcome disadvantages of background technology, a kind of two-way umbrella formula pipe detection diameter changing device is provided, many group sensors can be installed, its detection to pipeline can disposablely be finished, particularly need not change under the prerequisite of parts, realization overcomes defective and the influences of bend pipe excessively such as pipeline section distortion and inner-walls of duct projection, pit simultaneously to the detection of multiple different-diameter pipeline.
The present invention is achieved by the following technical solutions, the present invention includes: universal coupling, bearing pin, cramp bar, small box, sensor, compression spring, sensor mount, big casing, roller, the axis of guide, its connected mode is: an end of the axis of guide and universal coupling is fixedly connected by holding screw, small box, big casing are clearance fit with the axis of guide respectively, small box, big casing slide into when determining the position along the axis of guide, can be fixedly connected with the holding screw and the axis of guide (being provided with serial pilot hole according to internal diameter of the pipeline on the axis of guide); One end of cramp bar is connected in spill piece in small box and the big casing by bearing pin, the other end connects with roller on the sensor mount by bearing pin, in pipeline section, cramp bar evenly distributes along the radial direction circumference, formed " umbrella " formula structure with small box, the axis of guide and pipeline, cramp bar has been formed another " umbrella " formula structure with big casing, the axis of guide and pipeline; Roller is squeezed on the inner-walls of duct, can vertically roll along inner-walls of duct; Compression spring is emphasis parts of the present invention, and compression spring is installed in the groove in the big casing, and compression spring is not installed in the groove in small box; Cramp bar one end is by bearing pin and small box, spill piece in the big casing groove connects, the other end connects with roller and sensor mount by bearing pin, each sensor mount is supported by two cramp bars, two cramp bar direction differences, be symmetrical in pipeline section, one group of sensor of arranging according to certain rule all has been installed on each sensor mount, the quantity of sensor is by the size decision of the girth and the sensor probe of inner-walls of duct, the alignment probe inner-walls of duct of sensor, when cramp bar supports sensor mount, will push mutually with inner-walls of duct by the roller that bearing pin connects with sensor mount, distance between sensor and the inner-walls of duct remains in institute's claimed range at this moment, thereby can realize the detection to pipeline.
Small box comprises: locating ring (), holding screw, small box be lid, screw, small box installing ring, pin, spill piece, small box stifle thoroughly.Locating ring (one) is fixedly connected with the saturating lid of small box, holding screw is fixedly connected the locating ring () and the axis of guide, make small box accurate in locating be arranged with respect to the axis of guide, saturating lid of small box and axis of guide clearance fit, cramp bar passes the saturating lid of small box and connects by pin with the spill piece respectively, the spill piece is embedded in the groove of small box installing ring, and the small box installing ring and the axis of guide also are clearance fit.The small box stifle covers thoroughly with small box by screw and connects, and small box stifle and the axis of guide all are clearance fit.Small box covers thoroughly, the clearance fit cross section of small box installing ring, small box stifle and the axis of guide is not a circle, but the shape of similar runway, so small box can be covered thoroughly, small box installing ring, small box stifle circumferentially be positioned on the axis of guide.
Big casing comprises: big casing stifle, big casing installing ring, spill piece, big casing cover thoroughly, locating ring (two), pin, holding screw, screw.Locating ring (two) is fixedly connected with the saturating lid of big casing, holding screw is fixed together the locating ring (two) and the axis of guide, make big casing position comparatively accurately be arranged with respect to the axis of guide, saturating lid of big casing and axis of guide clearance fit, cramp bar pass the saturating lid of big casing and connect by pin with the spill piece respectively, and the spill piece is embedded in the groove of big casing installing ring, in addition, be separately installed with compression spring in the groove of big casing installing ring, same, the big casing installing ring and the axis of guide also are clearance fit.Big casing stifle covers thoroughly with big casing by screw and connects, and casing stifle and the axis of guide also are clearance fit greatly.Big casing covers thoroughly, big casing installing ring, big casing stifle are not circles with the clearance fit cross section of the axis of guide, but the shape of similar runway, thus big casing can be covered thoroughly, greatly the casing installing ring, the casing stifle circumferentially is fixed on the axis of guide greatly.
The present invention detects the diameter of pipeline as required, select suitable screw hole at the axis of guide, with small box, big casing is screwed respectively on the axis of guide, distance between small box and the big casing is certain, owing to be embedded in the elastic force of the compression spring in the big casing groove, the spill piece that connects with cramp bar is moved along duct orientation in the groove of big casing, on pipeline section, cramp bar comes just as the roller wheel bearing that the cramp bar of " umbrella " will connect with erecting frame, and inner-walls of duct is exactly the umbrella cloth of " umbrella ", be connected in " umbrella " that cramp bar had held in the small box, be cascaded with " umbrella " that cramp bar had held that be connected in the big casing, with common " umbrella cloth "; Because two roller distances that connect with sensor mount are certain also, so as long as the pressure of spring is enough, will make two rollers that connect with every group of sensor mount tightly be pressed on the inner-walls of duct, thereby make sensor mount parallel, guarantee that sensor detects desired distance with inner-walls of duct.When projection that runs into inner-walls of duct or bend pipe, pressure between roller and the inner-walls of duct increases, by cramp bar pressure is passed to compression spring, force the compression spring compression, at this moment the spill piece in the big casing can move in groove along duct orientation, be similar to " closing one's umbrella " process, drive the cramp bar pose that connects with it and change, make roller be crossed pipeline obstacle place; After cross at pipeline obstacle place, the compression spring return, whole device is got back to former state.Relative position between reducing small box, big casing and the axis of guide is to regulate, and when needs are measured the pipeline of other diameter, regulates small box and can realize significantly reducing with the big relative position of casing on the axis of guide.
The present invention has substantive distinguishing features and marked improvement, the present invention can make with a kind of detection of pipeline is disposable and finish, particularly under the prerequisite that need not change parts, realization is to the detection of multiple different-diameter pipeline, can overcome defect influence such as the distortion of pipeline section and inner-walls of duct projection, the relative position that only need regulate big casing, small box and the axis of guide to the detection of different-diameter pipeline gets final product, have simple and reliable for structure, advantage convenient to operation.The reducing principle is different fully in reducing technology of the present invention and the background technology, is not only applicable to the detection of offshore oilfield pipeline, also is applicable to the detection of general pipeline, has using value comparatively widely.
Description of drawings
Fig. 1 general structure synoptic diagram of the present invention
Fig. 2 general structure A-A sectional view of the present invention
Fig. 3 small box structural representation of the present invention
Fig. 4 small box structure of the present invention B-B sectional view
The big body structure synoptic diagram of Fig. 5 the present invention
The big body structure C-C of Fig. 6 the present invention sectional view
Embodiment
As shown in drawings, be that 10 groups two-way umbrella formula pipe detection diameter changing device illustrates concrete performance with the sensor groups number that is used for detecting, not limited by this.
As Fig. 1, shown in Figure 2, the present invention includes: universal coupling 1, bearing pin 2, cramp bar 3, small box 4, sensor 5, compression spring 6, sensor mount 7, big casing 8, roller 9, the axis of guide 10, its connected mode is: the axis of guide 9 is fixedly connected by holding screw with an end of universal coupling 1, small box 4, big casing 8 respectively with the axis of guide 10 clearance fit, can relatively move, when small box 4, big casing 8 slides into when determining the position, be fixedly connected with the holding screw and the axis of guide 10 respectively, one end of cramp bar 3 is connected in the spill piece in small box 4 and the big casing 8 by bearing pin respectively, the other end connects with roller 9 by bearing pin respectively, in pipeline section, cramp bar is along the radial direction circumference uniform distribution, with small box 4, the axis of guide 10 and pipeline have been formed " umbrella " formula structure, cramp bar and big casing 8, the axis of guide 10 and pipeline have been formed " umbrella " formula structure, and these two umbrella structures have common umbrella cloth---pipeline; Roller 9 can roll on pipeline 2 inwalls, requirement (distance between sensor probe and the inner-walls of duct) the decision when size of roller 9 is mainly worked by sensor 5, also be subjected to simultaneously the restriction (radius of roller should greater than the height of inner-walls of duct projection) of factors such as inner-walls of duct projection, sensor 5 is divided into 10 groups and is individually fixed on 10 sensor mounts according to certain rules, the alignment probe inner-walls of duct of sensor 5, and probe is a heavy segment distance in sensor mount 7, in order to avoid by the scratch of inner-walls of duct projection, 10 sensor mounts 7 evenly distribute at pipeline section upper edge circumference, for avoiding tube wall that the omission phenomenon is arranged, sensor mount 7 vertically twists at pipeline, can make sensor 5 not have the omission phenomenon like this when detecting inner-walls of duct; 10 compression springs 6 are vitals of the present invention, and it mainly acts on is the non-circular influence in cross section when overcoming because of pipeline section distortion, inner-walls of duct projection or pit and pipeline turning, is installed on respectively in the groove in the big casing 8.The quantity of cramp bar 3 is twices of 5 groups of numbers of sensor, be that each sensor mount 6 is supported by two cramp bars 3, two cramp bar direction differences, and be symmetrical in pipeline section, when cramp bar 3 gets up sensor mount 7 supportings, roller 10 on the sensor mount 7 will push mutually with inner-walls of duct, and the radius of roller 10 is fixed, so that remain in the desired distance range between sensor 5 on the sensor mount 7 and the inner-walls of duct.
As shown in Figure 3, Figure 4, small box 4 comprises: locating ring 11, holding screw 12, small box cover 13 thoroughly, screw 14, small box installing ring 15, pin 16, spill piece 17, small box stifle 18.Locating ring 11 is fixedly connected with the saturating lid 13 of small box, holding screw 12 is fixedly connected the locating ring 11 and the axis of guide 10, make small box 4 position comparatively accurately be arranged with respect to the axis of guide 10, saturating lid 13 of small box and the axis of guide 10 clearance fit, 10 cramp bars 3 pass the saturating lid 13 of small box and connect by pin 16 with 10 spill pieces 17 respectively, 10 spill pieces 17 are embedded in the groove of small box installing ring 15, and small box installing ring 15 also is a clearance fit with the axis of guide 10.Small box stifle 18 connects by the saturating lid 13 of 4 screws 14 and small box, and small box stifle 18 also is a clearance fit with the axis of guide 10.The saturating lid 13 of small box, small box installing ring 15, small box stifle 18 are not circles with the clearance fit cross section of the axis of guide 10, but the shape of similar runway, so the saturating lid 13 of small box, small box installing ring 15, small box stifle 18 circumferentially can be fixed on the axis of guide 10.
As Fig. 5, shown in Figure 6, big casing 8 comprises: big casing stifle 19, big casing installing ring 20, spill piece 21, the saturating lid 22 of big casing, locating ring 23, pin 24, holding screw 25, screw 26.Locating ring 23 is fixedly connected with the saturating lid 22 of big casing, holding screw 25 is fixedly connected the locating ring 23 and the axis of guide 10, make big casing 8 position comparatively accurately be arranged with respect to the axis of guide, saturating lid 22 of big casing and the axis of guide 10 clearance fit, 10 cramp bars 3 pass the saturating lid 22 of big casing and connect by pin 24 with 10 spill pieces 21 respectively, 10 spill pieces 21 are embedded in the groove of big casing installing ring 20, in addition, be separately installed with 10 compression springs 6 in the groove of big casing installing ring 20, casing installing ring 20 also is a clearance fit with the axis of guide 10 equally, greatly.Big casing stifle 19, to cover 22 thoroughly with big casing all be to connect by 10 screws, 26 big casing installing rings 20, and with the axis of guide 10 all be clearance fit.The saturating lid 22 of big casing, big casing installing ring 20, big casing stifle 19 are not circles with the clearance fit cross section of the axis of guide 10, but the shape of similar runway, so the saturating lid 22 of big casing, big casing installing ring 20, big casing stifle 19 circumferentially can be fixed on the axis of guide 10.
Detect the diameter of pipeline as required, select suitable screw hole at the axis of guide 10, with small box 4, big casing 8 is used holding screw 12 respectively, holding screw 25 is fixed on the axis of guide 10, distance between small box 4 and the big casing 8 is certain, owing to be embedded in the elastic force of the compression spring 6 in big casing 8 grooves, the spill piece 21 that connects with 10 cramp bars 3 is moved along duct orientation in the groove of big casing 8, on pipeline section, 10 cramp bars 3 come just as the roller wheel bearing that the cramp bar of " umbrella " will connect with erecting frame, and inner-walls of duct is exactly the umbrella cloth of " umbrella ", be connected in the small box " umbrella " that 4 cramp bar 3 has been held, " umbrella " that held with the cramp bar 3 that is connected in the big casing 8 is cascaded, with common " umbrella cloth "; Again because two rollers, 9 distances that connect with sensor mount 7 are certain also, so as long as the pressure of compression spring 6 is enough, will make two rollers 9 that connect with every group of sensor mount 7 tightly be pressed on the inner-walls of duct, thereby make sensor mount 7 parallel, guarantee that sensor 5 detects desired distance with inner-walls of duct.When projection that runs into inner-walls of duct or bend pipe, pressure between roller 9 and the inner-walls of duct increases, by cramp bar 3 pressure is passed to compression spring 6, force compression spring compression 6, at this moment the spill piece 21 in the big casing 8 can move in groove along duct orientation, be similar to " closing one's umbrella " process, drive cramp bar 3 poses that connect with it and change, make roller 9 be crossed pipeline obstacle place; After cross at pipeline obstacle place, compression spring 6 returns, whole device is got back to former state.Relative position between reducing small box 4, big casing 8 and the axis of guide 10 is to regulate, and when needs are measured the pipeline of other diameter, regulates small box 4 and can realize significantly reducing with the big relative position of casing 8 on the axis of guide 10.
Claims (7)
1, a kind of two-way umbrella formula pipe detection diameter changing device, comprise: universal coupling (1), bearing pin (2), sensor (5), compression spring (6), sensor mount (7), roller (9), the axis of guide (10), it is characterized in that also comprising: cramp bar (3), small box (4), big casing (8) and compression spring (6), connected mode is: at pipeline section, cramp bar (3) is evenly arranged along the radial direction circumference, with small box (4), the axis of guide (10) and pipeline have been formed a umbrella structure, cramp bar (3) and big casing (8), the axis of guide (10) and pipeline have been formed another umbrella structure; Compression spring (6) is arranged in the groove in the big casing (8), the axis of guide (10) is fixedly connected with an end of universal coupling (1), one end of cramp bar (3) is connected in spill piece (21) in small box (4) and the big casing (8) by bearing pin (2), the other end connects with roller (9) on the sensor mount (7) by bearing pin (2), roller (9) is squeezed on the inner-walls of duct, vertically rolls along inner-walls of duct; Cramp bar (3) one ends connect by the spill piece (21) in pin (16) and small box (4), big casing (8) groove, and the other end passes through bearing pin (2) and connects with roller (9) and sensor (5) erecting frame.
2, two-way umbrella formula pipe detection diameter changing device according to claim 1, it is characterized in that, small box (4) comprising: locating ring (11), holding screw (12), small box covers (13) thoroughly, screw (14), small box installing ring (15), pin (16), spill piece (17), small box stifle (18), locating ring (11) covers (13) thoroughly with small box and is fixedly connected, holding screw (12) is fixedly connected the locating ring (11) and the axis of guide (10), small box covers (13) and the axis of guide (10) clearance fit thoroughly, cramp bar (3) passes small box and covers (13) thoroughly and connect by pin with spill piece (17), spill piece (17) is embedded in the groove of small box installing ring (15), small box installing ring (15) also is a clearance fit with the axis of guide (10), small box stifle (18) covers (13) thoroughly by screw (14) and connects with small box, and small box stifle (18) all is clearance fit with the axis of guide (10), and small box covers (13) thoroughly, small box installing ring (15), small box stifle (18) circumferentially is positioned on the axis of guide (10).
3, two-way umbrella formula pipe detection diameter changing device according to claim 1, it is characterized in that, big casing (8) comprising: big casing stifle (19), big casing installing ring (20), spill piece (21), big casing covers (22) thoroughly, locating ring (23), pin (24), holding screw (25), screw (26), locating ring (23) covers (22) thoroughly with big casing and is fixedly connected, holding screw (25) is fixed together the locating ring (23) and the axis of guide (10), big casing covers (22) and the axis of guide (10) clearance fit thoroughly, cramp bar (3) passes big casing and covers (22) thoroughly and connect by pin with spill piece (21), spill piece (21) is embedded in the groove of big casing installing ring (20), be respectively equipped with compression spring (6) in the groove of big casing installing ring (20), big casing installing ring (20) is a clearance fit with the axis of guide (10), big casing stifle (19) covers (22) by screw (26) thoroughly with big casing and connects, and big casing stifle (19) also is a clearance fit with the axis of guide (10), and big casing covers (22) thoroughly, big casing installing ring (20), big casing stifle (19) circumferentially is fixed on the axis of guide (10).
4, according to claim 1 or 2 or 3 described two-way umbrella formula pipe detection diameter changing devices, it is characterized in that, small box (4), big casing (8) are clearance fit with the axis of guide (10), and small box (4), big casing (8) are fixedly connected with the holding screw and the axis of guide (10).
5, two-way umbrella formula pipe detection diameter changing device according to claim 1, it is characterized in that, each sensor mount (7) is by two cramp bars (3) supporting, and two cramp bars (3) are symmetrical in pipeline section, and one group of sensor (5) is set on each sensor mount (7).
6, two-way according to claim 1 or 5 umbrella formula pipe detection diameter changing device is characterized in that, the quantity of sensor (5) is by the size decision of the girth and sensor (5) probe of inner-walls of duct.
7, two-way umbrella formula pipe detection diameter changing device according to claim 1 is characterized in that, the relative position scalable between reducing small box (4), big casing (8) and the axis of guide (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116293 CN1246684C (en) | 2003-04-10 | 2003-04-10 | Bidirectional umbrella-shaped pipe-detecting reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116293 CN1246684C (en) | 2003-04-10 | 2003-04-10 | Bidirectional umbrella-shaped pipe-detecting reducing device |
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| Publication Number | Publication Date |
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| CN1441241A true CN1441241A (en) | 2003-09-10 |
| CN1246684C CN1246684C (en) | 2006-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03116293 Expired - Fee Related CN1246684C (en) | 2003-04-10 | 2003-04-10 | Bidirectional umbrella-shaped pipe-detecting reducing device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160517B (en) * | 2005-04-14 | 2010-10-27 | 埃克森美孚上游研究公司 | Pipeline pressure tool |
| CN101319985B (en) * | 2007-06-06 | 2010-11-03 | 中国石油天然气集团公司 | Floating ring of imbedded steel pipe corrosion detector probe |
| CN102445490A (en) * | 2011-11-21 | 2012-05-09 | 合肥中大检测技术有限公司 | Method and device for detecting transversely distributed defects of end of ferromagnetic pipeline |
| CN101655183B (en) * | 2008-09-23 | 2012-07-25 | 天津大学 | Land marking method and land making system of pipe interior detector |
| CN105937894A (en) * | 2014-10-27 | 2016-09-14 | 高美科量具制造有限公司 | Device and method for measuring positive displacement motor and plurality of inside diameters of interior surface |
| CN106310810A (en) * | 2016-08-19 | 2017-01-11 | 安徽元琛环保科技股份有限公司 | Automatic bag opening detecting device for dust removal filtering bag |
| CN109780373A (en) * | 2019-03-21 | 2019-05-21 | 广州市天驰测绘技术有限公司 | A kind of underground piping detection device |
| CN110132119A (en) * | 2019-06-19 | 2019-08-16 | 济南大学 | One kind being applied to longitudinal coil of strip displacement monitor and method |
| CN112033342A (en) * | 2020-09-30 | 2020-12-04 | 吴祖伟 | Detection equipment for detecting polishing flatness of optical lens |
| CN112504080A (en) * | 2020-11-19 | 2021-03-16 | 大庆石油管理局有限公司 | Assembled multifunctional pipe orifice quality detection measuring tool |
| CN112743409A (en) * | 2020-12-15 | 2021-05-04 | 江苏维讯工业技术有限公司 | Flaw detection device based on visual sensor and detection method thereof |
| CN112903582A (en) * | 2021-01-26 | 2021-06-04 | 申祥意 | Equipment for detecting hydraulic pipeline |
| CN116735388A (en) * | 2023-08-15 | 2023-09-12 | 航天氢能科技有限公司 | System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material |
-
2003
- 2003-04-10 CN CN 03116293 patent/CN1246684C/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160517B (en) * | 2005-04-14 | 2010-10-27 | 埃克森美孚上游研究公司 | Pipeline pressure tool |
| CN101319985B (en) * | 2007-06-06 | 2010-11-03 | 中国石油天然气集团公司 | Floating ring of imbedded steel pipe corrosion detector probe |
| CN101655183B (en) * | 2008-09-23 | 2012-07-25 | 天津大学 | Land marking method and land making system of pipe interior detector |
| CN102445490A (en) * | 2011-11-21 | 2012-05-09 | 合肥中大检测技术有限公司 | Method and device for detecting transversely distributed defects of end of ferromagnetic pipeline |
| CN105937894B (en) * | 2014-10-27 | 2020-02-11 | 高美科量具制造有限公司 | Device and method for measuring multiple inner diameters of stator and inner surface of positive displacement motor |
| CN105937894A (en) * | 2014-10-27 | 2016-09-14 | 高美科量具制造有限公司 | Device and method for measuring positive displacement motor and plurality of inside diameters of interior surface |
| CN106310810A (en) * | 2016-08-19 | 2017-01-11 | 安徽元琛环保科技股份有限公司 | Automatic bag opening detecting device for dust removal filtering bag |
| CN106310810B (en) * | 2016-08-19 | 2019-04-02 | 安徽元琛环保科技股份有限公司 | A kind of dedusting filtering bag sack automatic detection device |
| CN109780373A (en) * | 2019-03-21 | 2019-05-21 | 广州市天驰测绘技术有限公司 | A kind of underground piping detection device |
| CN110132119A (en) * | 2019-06-19 | 2019-08-16 | 济南大学 | One kind being applied to longitudinal coil of strip displacement monitor and method |
| CN112033342A (en) * | 2020-09-30 | 2020-12-04 | 吴祖伟 | Detection equipment for detecting polishing flatness of optical lens |
| CN112033342B (en) * | 2020-09-30 | 2022-04-15 | 湖南晶盛光电有限公司 | Detection equipment for detecting polishing flatness of optical lens |
| CN112504080A (en) * | 2020-11-19 | 2021-03-16 | 大庆石油管理局有限公司 | Assembled multifunctional pipe orifice quality detection measuring tool |
| CN112743409A (en) * | 2020-12-15 | 2021-05-04 | 江苏维讯工业技术有限公司 | Flaw detection device based on visual sensor and detection method thereof |
| CN112743409B (en) * | 2020-12-15 | 2022-03-01 | 江苏维讯工业技术有限公司 | Flaw detection device based on visual sensor and detection method thereof |
| CN112903582A (en) * | 2021-01-26 | 2021-06-04 | 申祥意 | Equipment for detecting hydraulic pipeline |
| CN112903582B (en) * | 2021-01-26 | 2024-05-14 | 广东忠江能源环保科技工程有限公司 | Equipment for detecting hydraulic pipeline |
| CN116735388A (en) * | 2023-08-15 | 2023-09-12 | 航天氢能科技有限公司 | System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material |
| CN116735388B (en) * | 2023-08-15 | 2024-02-13 | 航天氢能科技有限公司 | System and method for testing anti-explosion performance of hydrogen explosion anti-explosion material |
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| CN1246684C (en) | 2006-03-22 |
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