CN212132053U - Buried pipeline detection device with replaceable inspection sheet - Google Patents
Buried pipeline detection device with replaceable inspection sheet Download PDFInfo
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- CN212132053U CN212132053U CN202020526737.8U CN202020526737U CN212132053U CN 212132053 U CN212132053 U CN 212132053U CN 202020526737 U CN202020526737 U CN 202020526737U CN 212132053 U CN212132053 U CN 212132053U
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Abstract
The utility model discloses a buried pipeline detection device with a replaceable inspection sheet, which comprises an inspection sheet assembly and a support assembly, wherein the inspection sheet assembly comprises a cylindrical base and a cylindrical inspection sheet, the cylindrical base is provided with a coaxial mounting hole and a threaded through hole from bottom to top, the cylindrical inspection sheet is installed in the mounting hole of the cylindrical base, a heat shrinkage sleeve is arranged between the peripheral wall of the cylindrical inspection sheet and the cylindrical base, and the top of the cylindrical inspection sheet is provided with a threaded blind hole; the supporting component comprises a screw rod and a hollow supporting rod, an insulating sealing block is arranged in an inner cavity at the lower end of the supporting rod, a protective cap is arranged at the upper end of the supporting rod, the upper half part of the screw rod is embedded in the insulating sealing block, and a cable is connected to the screw rod; the checking piece assembly is screwed on the screw rod from bottom to top through the threaded through hole of the cylindrical base and the threaded blind hole of the cylindrical checking piece. The utility model has the advantages of convenient on-site disassembly and assembly, replacement, quick and convenient installation once more, recycling, and wide popularization and application.
Description
Technical Field
The utility model relates to a pipeline negative pole protection detection area, concretely relates to buried pipeline detection device of removable inspection piece.
Background
Along the way of gas pipe network among the prior art, set up the test stake according to corresponding standard, the detection of test stake mainly used cathodic protection parameter is essential device in the pipeline management maintenance, and cloudy guarantor stake fortune dimension personnel need regularly test the pipeline potential, ensure the cloudy guarantor system operation's of pipeline normal. However, the test pile can only obtain the electrified potential and cannot obtain the parameters of the corrosion rate of the pipeline.
Aiming at how to obtain the corrosion rate of the buried pipeline, the corrosion rate is mainly obtained by testing an ultrasonic wall thickness measuring method, an ER corrosion rate probe testing method and a corrosion inspection sheet testing method. The former two methods have higher test cost, and the validity of the test result still needs more field data for verification, thereby causing limited application prospect. The corrosion inspection piece testing method is the most mature and commonly used method for testing the corrosion rate outside the pipeline at present. However, in the prior art, the detection part is often fixedly connected with the inspection sheet and is not easy to detach, only disposable detection can be performed, the resource waste is caused, meanwhile, large earth excavation is needed during field installation and dismounting, and the test cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a make things convenient for on-spot dismouting and quick convenient, the removable inspection piece's of circulated use buried pipeline detection device of installation.
In order to solve the problems in the prior art, the utility model provides a buried pipeline detection device with a replaceable inspection sheet, which comprises a cylindrical base and a cylindrical inspection sheet, wherein the cylindrical base is provided with a coaxial mounting hole and a threaded through hole from bottom to top; the supporting assembly comprises a screw rod and a hollow supporting rod, an insulating sealing block is arranged in an inner cavity at the lower end of the supporting rod, a protective cap is arranged at the upper end of the supporting rod, the upper half part of the screw rod is embedded in the insulating sealing block, and the screw rod is connected with a cable which sequentially penetrates through the insulating sealing block, the inner cavity of the supporting rod and the protective cap; the inspection piece assembly is screwed on the screw rod from bottom to top through the threaded through hole of the cylindrical base and the threaded blind hole of the cylindrical inspection piece.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, be equipped with the sealing washer between cylindricality base and bracing piece and the insulating sealed piece.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, the cylindricality base is stretched out to the lower extreme of cylindricality inspection piece.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, the helmet is by polytetrafluoroethylene material preparation and inside cavity, the helmet includes transition portion and extension, the transition portion external diameter of helmet is followed earlier and is close to stay tube one end and dwindles gradually to the free end, and the external diameter of later extension is unchangeable and outside extension, the internal diameter of extension is less than the external diameter of cable, the cable is worn out from the helmet after rising the extension.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, its characterized in that, the material of screw rod with the material of cylindricality inspection piece is the same.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, the sealing washer is O type sealing washer.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, insulating sealed piece is made by the epoxy material.
Further, the utility model relates to a buried pipeline detection device of removable inspection piece, wherein, the end that stretches out of cylindricality inspection piece is circular or square.
The utility model relates to a buried pipeline detection device of removable inspection piece compares with prior art, has following advantage: the detection device comprises an inspection sheet assembly and a support assembly, wherein the inspection sheet assembly comprises a cylindrical base and a cylindrical inspection sheet, the cylindrical base is provided with a coaxial mounting hole and a threaded through hole from bottom to top, the cylindrical inspection sheet is mounted in the mounting hole of the cylindrical base from bottom to top, a heat shrinkage sleeve is arranged between the peripheral wall of the cylindrical inspection sheet and the cylindrical base, and the top of the cylindrical inspection sheet is provided with a threaded blind hole; the supporting component comprises a screw rod and a hollow supporting rod, an insulating sealing block is arranged in an inner cavity at the lower end of the supporting rod, a protective cap is arranged at the upper end of the supporting rod, the upper half part of the screw rod is embedded in the insulating sealing block, and the screw rod is connected with a cable which sequentially penetrates through the insulating sealing block, the inner cavity of the supporting rod and the protective cap; the checking piece assembly is screwed on the screw rod from bottom to top through the threaded through hole of the cylindrical base and the threaded blind hole of the cylindrical checking piece. Under normal conditions, the detection device is buried underground, corresponding equipment is connected through a cable during detection, and corrosion rate detection can be carried out at any time; the cylindricality inspection piece can realize dismantling with the cylindricality base and be connected, just extracts detection device and changes when the cylindricality inspection piece damages, should bury detection device in the underground again after the change, and cyclic utilization can be realized to the part except the cylindricality inspection piece, has reduced manufacturing cost. Bury detection device and go on through punching, so do not need the excavation of large tracts of land earthwork, reduced installation cost, consequently be applicable to large tracts of land and popularize and apply.
The buried pipeline detecting device with replaceable inspection plate according to the present invention will be described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is the utility model relates to a buried pipeline detection device's of removable inspection piece structural schematic diagram.
Fig. 2 is the utility model relates to a buried pipeline detection device's of removable inspection piece field installation structure sketch map.
Detailed Description
As shown in fig. 1, the utility model relates to a buried pipeline detection device with replaceable inspection plate, including inspection plate assembly and supporting assembly, characterized in that, the inspection plate assembly includes cylindrical base 1 and cylindrical inspection plate 2, cylindrical base 1 is equipped with coaxial mounting hole and screw thread through-hole from bottom to top, cylindrical inspection plate 2 is installed in the mounting hole of cylindrical base 1 from bottom to top, be equipped with heat shrink sleeve 3 between the perisporium of cylindrical inspection plate 2 and cylindrical base 1, wherein heat shrink sleeve 3 is used for preventing corrosion from taking place between cylindrical base 1 and the cylindrical inspection plate, influence the testing result, the top of cylindrical inspection plate 2 is equipped with the screw thread blind hole; the supporting component comprises a screw rod 4 and a hollow supporting rod 5, an insulating sealing block 6 is arranged in an inner cavity at the lower end of the supporting rod 5, a protective cap 7 is arranged at the upper end of the supporting rod 5, the upper half part of the screw rod 4 is embedded in the insulating sealing block 6, and the screw rod 4 is connected with a cable 8 which sequentially penetrates through the insulating sealing block 6, the inner cavity of the supporting rod 5 and the protective cap 7; the inspection piece assembly is screwed on the screw rod 4 from bottom to top through the threaded through hole of the cylindrical base 1 and the threaded blind hole of the cylindrical inspection piece 2. Under normal conditions, the detection device is buried underground, corresponding equipment is connected through a cable during detection, and corrosion rate detection can be carried out at any time; cylindricality inspection piece 2 can realize dismantling with cylindricality base 1 and be connected, just extracts detection device and changes when cylindricality inspection piece 2 damages, should bury detection device in the underground again after the change, and cyclic utilization can be realized to the part except cylindricality inspection piece 2, has reduced manufacturing cost. Bury detection device and go on through punching, so do not need the excavation of large tracts of land earthwork, reduced installation cost, consequently be applicable to large tracts of land and popularize and apply.
As shown in fig. 1, in an embodiment of the present invention, as a specific implementation manner, the opening at the upper end of the supporting rod 5 is exposed outside the ground surface (as shown in fig. 2), so that moisture enters into the supporting rod 5 due to rain or dew, and the moisture enters into and exits from the supporting rod 5 and contacts with the screw rod 4 to generate galvanic corrosion, which affects the test data. Therefore, a protective cap 7 is fixedly connected to the opening at the top of the supporting tube 5, and an insulating sealing block 6 is arranged in the inner cavity at the lower end of the supporting tube 5. Wherein, insulating seal piece 6 can the preparation of epoxy material, of course adopt other materials preparation under the requirement that satisfies its performance also, prevent the entering of moisture under helmet 7 and insulating seal piece 6's dual seal, prevent to disturb the testing result because of the external factor, wear out from helmet 7 in the other end of cable 8 process 5 inner chambers of bracing piece, conveniently be connected with outside test equipment, make through setting up above the structure examine the holistic sealed effect of device and obtain very big promotion.
The utility model discloses an in the embodiment, as concrete implementation mode, for the convenience of cylindricality inspection piece 2 and bury ground and carry out effective contact, under the prerequisite that does not destroy detection device overall tightness, cylindricality base 1 is stretched out to the lower extreme of pipeline cylindricality inspection piece 2, can be for circular or square the end design that stretches out of cylindricality inspection piece 2 for the demand that adapts to under the different situations.
The utility model provides an embodiment, as concrete implementation mode, in order to promote detection device's detection precision, reduce test error, screw rod 4 is as cable 8 and 2 intermediate junction media of cylindricality inspection piece, if cylindricality inspection piece 2 is different with screw rod 4's material, lead to the cylindricality to detect piece corrosion rate and accelerate or slow down, and then can influence the result of surveying corrosion rate, consequently the material with screw rod 4 is the same with the material of cylindricality inspection piece 2, can be preferably steel material under the prerequisite that satisfies the detection demand.
In an embodiment of the present invention, as a preferred embodiment, a sealing ring 9 is disposed between the cylindrical base 1 and the supporting rod 5 and the insulating sealing block 6. The sealing ring 9 may be an O-ring or other type of sealing gasket to meet the sealing requirement between the support rod 5 and the cylindrical base 1.
The utility model discloses an embodiment, as concrete implementation mode, protective cap 7 is preferred to be made with polytetrafluoroethylene material and inside cavity, protective cap 7 includes transition portion and extension, protective cap 7's transition portion external diameter is followed earlier and is reduced to the free end gradually along being close to 5 one ends of bracing piece, the external diameter of later extension is unchangeable and outside extension, the internal diameter of extension is less than cable 8's external diameter, can increase the length of extension according to the demand, its sealed water-proof effects is better the longer the length of extension, when the installation cable 8 rises the extension back and wears out from protective cap 7.
The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the present invention as defined by the claims.
Claims (8)
1. A buried pipeline detection device with a replaceable inspection sheet comprises an inspection sheet assembly and a supporting assembly, and is characterized in that the inspection sheet assembly comprises a cylindrical base (1) and a cylindrical inspection sheet (2), the cylindrical base (1) is provided with a coaxial mounting hole and a threaded through hole from bottom to top, the cylindrical inspection sheet (2) is mounted in the mounting hole of the cylindrical base (1) from bottom to top, a heat shrinkage sleeve (3) is arranged between the peripheral wall of the cylindrical inspection sheet (2) and the cylindrical base (1), and the top of the cylindrical inspection sheet (2) is provided with a threaded blind hole; the supporting assembly comprises a screw rod (4) and a hollow supporting rod (5), an insulating sealing block (6) is arranged in an inner cavity at the lower end of the supporting rod (5), a protective cap (7) is arranged at the upper end of the supporting rod (5), the upper half part of the screw rod (4) is embedded in the insulating sealing block (6), and the screw rod (4) is connected with a cable (8) which sequentially penetrates through the insulating sealing block (6), the inner cavity of the supporting rod (5) and the protective cap (7); the inspection piece assembly is screwed on the screw rod (4) from bottom to top through the threaded through hole of the cylindrical base (1) and the threaded blind hole of the cylindrical inspection piece (2).
2. A buried pipeline inspection device with replaceable inspection pieces as claimed in claim 1, wherein a sealing ring (9) is provided between the cylindrical base (1) and the support rod (5) and the insulating sealing block (6).
3. A buried pipeline inspection device with replaceable inspection pieces according to claim 2, characterized in that the lower end of the cylindrical inspection piece (2) extends out of the cylindrical base (1).
4. The buried pipeline detection device with the replaceable inspection sheet as claimed in claim 1, wherein the protective cap (7) is made of polytetrafluoroethylene and is hollow inside, the protective cap (7) comprises a transition part and an extension part, the outer diameter of the transition part of the protective cap (7) is gradually reduced from one end close to the supporting tube to the free end, the outer diameter of the extension part is unchanged and extends outwards, the inner diameter of the extension part is smaller than the outer diameter of the cable (8), and the cable (8) stretches the extension part and then penetrates out of the protective cap (7).
5. The buried pipeline detecting device with the replaceable inspection piece as claimed in claim 1, wherein the material of the screw rod (4) is the same as that of the cylindrical inspection piece (2).
6. A buried pipeline inspection device with replaceable inspection pieces as claimed in claim 2, wherein the sealing ring (9) is an O-ring seal.
7. A buried pipeline inspection device with replaceable inspection pieces as claimed in claim 1, wherein the insulation sealing block (6) is made of epoxy resin.
8. A buried pipeline inspection device with replaceable inspection pieces, as claimed in claim 3, wherein the protruding end of the cylindrical inspection piece (2) is round or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526737.8U CN212132053U (en) | 2020-04-10 | 2020-04-10 | Buried pipeline detection device with replaceable inspection sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526737.8U CN212132053U (en) | 2020-04-10 | 2020-04-10 | Buried pipeline detection device with replaceable inspection sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212132053U true CN212132053U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020526737.8U Active CN212132053U (en) | 2020-04-10 | 2020-04-10 | Buried pipeline detection device with replaceable inspection sheet |
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| Country | Link |
|---|---|
| CN (1) | CN212132053U (en) |
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2020
- 2020-04-10 CN CN202020526737.8U patent/CN212132053U/en active Active
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