CN205300460U - Oil pipe drift diameter gauge - Google Patents

Oil pipe drift diameter gauge Download PDF

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Publication number
CN205300460U
CN205300460U CN201521030078.4U CN201521030078U CN205300460U CN 205300460 U CN205300460 U CN 205300460U CN 201521030078 U CN201521030078 U CN 201521030078U CN 205300460 U CN205300460 U CN 205300460U
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China
Prior art keywords
piston rod
ring
oil
nylon sleeve
pipeline path
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CN201521030078.4U
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Chinese (zh)
Inventor
姜全
孟刚
李漫吟
孙天勇
吕敬堂
朱成龙
戴敏
黄炳涛
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The utility model provides an oil pipe drift diameter gauge, it includes: the hydraulic buffer comprises a hydraulic cylinder body and a piston rod which can be arranged on one side of the hydraulic cylinder body in a telescopic mode; the nylon sleeve pipe can be sleeved on the piston rod in a detachable mode, the piston rod extends out of the nylon sleeve pipe, the outer diameter of the nylon sleeve pipe is larger than that of the cylinder body, and the outer surface of the nylon sleeve pipe is provided with a threaded accommodating groove. The utility model provides an oil pipe drift diameter gauge has advantages such as easily preparation, easy to carry out, with low costs, benefit height, and uses this oil pipe drift diameter gauge to carry out the drift diameter inspection to oil pipe, can prolong the especially coated oil pipe's of oil pipe life cycle, reduces pounding to the jigger and hits, practices thrift and changes oil pipe and jigger cost, has solved the problem that the easy card of drift diameter gauge is low at the inside efficiency of construction that causes of oil pipe simultaneously to can guarantee operator's personal safety.

Description

Oil-pipeline path-ventilating gauge
Technical field
The utility model relates to technical field of oil production engineering, particularly a kind of oil-pipeline path-ventilating gauge.
Background technology
In the process of workover treatment, for downhole tool is lowered in oil pipe smoothly, must use oil-pipeline path-ventilating gaugeOil pipe is carried out to latus rectum inspection. Conventional oil-pipeline path-ventilating gauge material is steel, and the weight of steel oil-pipeline path-ventilating gauge is larger,Structure is single, and length is unadjustable, and jack rabbit can only be suitable for a kind of oil pipe of diameter, in the process using,Steel oil-pipeline path-ventilating gauge glides at a high speed in oil pipe, and the coating of tube inner wall, particularly new technology coating tubing is producedSerious wearing and tearing, and because its weight produces great impulsive force to jigger greatly, jigger is very easily damaged,And easily eject and hurt sb.'s feelings; Single structure can not well be removed the dirty of tube inner wall, and be easily stuck in oil pipe inPortion causes the reduction of efficiency of construction.
Utility model content
The purpose of this utility model be to provide a kind of lightweight, can solve the coated inside wear problem to coating tubingAnd the oil-pipeline path-ventilating gauge of the unadjustable problem of length.
For achieving the above object, the utility model provides a kind of oil-pipeline path-ventilating gauge, and it comprises: hydraulic bjuffer, instituteState hydraulic bjuffer and comprise hydraulic cylinder and the retractable piston rod that is arranged on described hydraulic cylinder one side; Nylon jacketPipe, being set on described piston rod of described nylon sleeve energy dismounting, and described piston rod extends described nylon sleeve,The external diameter of described nylon sleeve is greater than the external diameter of described hydraulic cylinder, and the outer surface of described nylon sleeve is provided with and is shape of threadsStorage tank.
Oil-pipeline path-ventilating gauge as above, wherein, the elongated end of described piston rod is arranged with locking device, described lockingDevice comprises: be the conical ring of hole enlargement shape along the bearing of trend of described piston rod, described conical ring is set in described pistonOn bar and with the clamping of described piston rod phase, described piston rod stretches out described conical ring; Elastic ring, described elastic ring can be livedMoving be set on described piston rod and be arranged at described conical ring and described nylon sleeve between, in described elastic ringThe outer ring surface interference fit of anchor ring and described conical ring, the flexible outer ring surface that can drive described conical ring of described piston rodBe separated or engage with the inner ring surface of described elastic ring.
Oil-pipeline path-ventilating gauge as above, wherein, is provided with back-moving spring in the interior ring of described elastic ring, described reset bulletSpring is set on described piston rod, and one end of described back-moving spring is resisted against described nylon sleeve described hydraulic cylinder dorsadEnd face on, its other end is resisted against described conical ring on the end face of described hydraulic cylinder.
Oil-pipeline path-ventilating gauge as above, wherein, described conical ring outer cover is provided with nylon ring, outside described nylon ringFootpath equates with the external diameter of described nylon sleeve.
Oil-pipeline path-ventilating gauge as above, wherein, the external part of described piston rod is also arranged with counterweight ring, described counterweightRing is positioned at a described conical ring side of described hydraulic cylinder dorsad, and described piston rod stretches out described counterweight ring.
Oil-pipeline path-ventilating gauge as above, wherein, the external part energy dismounting of described piston rod be connected with polyurethane bufferingPiece.
Oil-pipeline path-ventilating gauge as above, wherein, described piston rod is provided with external screw thread, described polyurethane buffering pieceMiddle part is provided with through hole, and described polyurethane buffering piece is connected in described by spinning of described external screw thread and described through holeThe end of piston rod.
Oil-pipeline path-ventilating gauge as above, wherein, is also arranged with buffer spring, described buffer spring on described piston rodOne end be resisted against on the end face of described counterweight ring, the other end is resisted against on the end face of described polyurethane buffering piece.
Oil-pipeline path-ventilating gauge as above, wherein, a described hydraulic cylinder dorsad side of described piston rod is provided with to extensionThe connecting rod of stretching, the axis conllinear of the axis of described connecting rod and described piston rod, the cover of energy dismounting on described connecting rodBe provided with nylon sleeve, the external diameter of described nylon sleeve equates with the external diameter of described nylon sleeve, and described nylon sleeveOuter surface is provided with and is the clean groove of screw-shaped.
Oil-pipeline path-ventilating gauge as above, wherein, described nylon sleeve and described piston rod tight fit, described hydraulic cylinderBetween body and described nylon sleeve and described nylon sleeve, be equipped with polyurethane buffering ring.
Compared with prior art, advantage of the present utility model is as follows:
The oil-pipeline path-ventilating gauge that the utility model provides, utilize the feature that piston rod can be flexible, makes oil-pipeline path-ventilating gaugeLength can be adjusted, and the multi-buffer structure that polyurethane buffering piece, buffer spring and piston rod form, effectively reducesTo the impulsive force of jigger, both extended the service life of jigger, thereby saved the cost of changing jigger, againAvoid jigger ejection to hurt sb.'s feelings, thereby ensured staff's security;
The oil-pipeline path-ventilating gauge that the utility model provides, utilizes being set on piston rod of nylon sleeve energy dismounting, makes oilPipe jack rabbit can be realized the oil pipe of different pore size is carried out to latus rectum inspection by the nylon sleeve of replacing various outer diameter;
The oil-pipeline path-ventilating gauge that the utility model provides, utilize be arranged on nylon sleeve outer surface to be screw-shaped accommodatingGroove and be arranged on and be the clean groove of screw-shaped on nylon sleeve outer surface, making can be at oil pipe at oil-pipeline path-ventilating gaugeMiddle rotation moves downward, and has both reduced the speed that moves downward, makes this oil-pipeline path-ventilating gauge be difficult for being stuck in oil pipe inside,Effectively improved the efficiency that latus rectum checks, again can by be attached to dirty on tube inner wall scrape be placed in storage tank andIn clean groove, solved due to dirty in oil pipe and caused standing valve for oil-well pump card and leakage, and well-flushing etc. repeats to doIndustry problem;
In addition, compared with steel oil-pipeline path-ventilating gauge, the oil-pipeline path-ventilating gauge providing of the present utility model adopts nylon sleeve,The quality of nylon sleeve is light, can make the overall weight of the oil-pipeline path-ventilating gauge that the utility model provides be reduced to steel oil pipe2/3rds of jack rabbit, thus effectively reduce the impact strength of oil-pipeline path-ventilating gauge to jigger, and nylon materialWearability is four times of copper, and the advantage such as it is little to have coefficient of friction, and mechanical strength is high, and thermal coefficient of expansion is low, thereby largeAmplitude has reduced oil-pipeline path-ventilating gauge that the utility model provides to the particularly wearing and tearing of coating tubing inwall of tube inner wall, entersAnd extended service life of oil pipe, estimating every year can create beneficial result more than 100 ten thousand yuan.
Brief description of the drawings
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit model of the present utility modelEnclose. Wherein:
Fig. 1 is the structural representation of the oil-pipeline path-ventilating gauge that provides according to the utility model one embodiment.
Drawing reference numeral explanation:
1-hydraulic bjuffer; 11-hydraulic cylinder; 12-piston rod; 13-connecting rod; 2-nylon sleeve; 21-storage tank;3-locking device; 31-conical ring; 32-elastic ring; 33-back-moving spring; 4-nylon ring; 5-counterweight ring; 6-polyurethaneBuffer stopper; 7-buffer spring; 8-nylon sleeve; 81-cleans groove; 9-polyurethane buffering ring.
Detailed description of the invention
For the technical solution of the utility model, object and effect are had to clearer understanding, existing accompanying drawings originallyThe detailed description of the invention of utility model.
As shown in Figure 1, the utility model provides a kind of oil-pipeline path-ventilating gauge, and it comprises: hydraulic bjuffer 1 and nylonSleeve pipe 2, wherein, hydraulic bjuffer 1 comprises hydraulic cylinder 11 and retractable hydraulic cylinder 11 1 sides of being arranged onPiston rod 12, utilizes the feature that piston rod 12 can be flexible, and the length of oil-pipeline path-ventilating gauge can be adjusted, andWhen use, piston rod 12 can play cushioning effect, thereby effectively reduces the impulsive force to jigger, both extendsThe service life of jigger, saved the cost of changing jigger, avoided again jigger to eject and hurted sb.'s feelings; Nylon jacketBeing set on piston rod 12 of pipe 2 energy dismounting, and piston rod 12 extends nylon sleeve 2, i.e. this oil-pipeline path-ventilating gaugeFor split-type structural, oil-pipeline path-ventilating gauge can be realized different pore size by the nylon sleeve 2 of changing various outer diameterOil pipe carry out latus rectum inspection; The external diameter of nylon sleeve 2 is greater than the external diameter of hydraulic cylinder 11, outside nylon sleeve 2Surface is provided with and is screw-shaped storage tank 21, utilize be arranged on nylon sleeve 2 outer surfaces to be screw-shaped accommodatingGroove 21, makes can in oil pipe, rotate and move downward at oil-pipeline path-ventilating gauge, has both reduced the speed that moves downward,Can scrape and be contained in storage tank 21 being attached to dirty on tube inner wall again, solve due to oil pipe internal organDirt causes standing valve for oil-well pump card and leakage, and well-flushing etc. repeats shop problem; Simultaneously because oil-pipeline path-ventilating gauge is fallingCan be autonomous in process rotatablely move, makes this oil-pipeline path-ventilating gauge be difficult for being stuck in oil pipe inside, has effectively improved logicalThe efficiency that footpath checks, in addition, compared with steel oil-pipeline path-ventilating gauge, the quality of nylon sleeve 2 is light, can make this practicalityThe overall weight of the novel oil-pipeline path-ventilating gauge providing is reduced to 2/3rds of steel oil-pipeline path-ventilating gauge, thereby effectively reducesThe impact strength of oil-pipeline path-ventilating gauge to jigger, and the wearability of nylon material is copper four times, and has friction systemThe advantages such as number is little, and mechanical strength is high, and thermal coefficient of expansion is low, thus the oil pipe that the utility model provides significantly reducedJack rabbit is to the particularly wearing and tearing of coating tubing inwall of tube inner wall, and then extended the service life of oil pipe, savedChange the cost of oil pipe.
In a preferred embodiment of the present utility model, as shown in Figure 1, the elongated end of piston rod 12 is arranged with lockDetermine device 3, locking device 3 comprises: the conical ring 31 and the elastic ring that are hole enlargement shape along the bearing of trend of piston rod 1232, wherein, conical ring 31 be set on piston rod 12 and with piston rod 12 phase clampings, conical ring 31 can be with workStopper rod 12 flexible and moving, piston rod 12 stretches out conical ring 31; What elastic ring 32 energy were movable is set in piston rodOn 12 and be arranged between conical ring 31 and nylon sleeve 2 outer shroud of the inner ring surface of elastic ring 32 and conical ring 31Face interference fit, the flexible outer ring surface of conical ring 31 and the inner ring surface of elastic ring 32 of driving of piston rod 12 divides mutuallyFrom or engage, in use, when oil-pipeline path-ventilating gauge is put into oil pipe, oil pipe is carried under the castering action of workover rigRise, oil-pipeline path-ventilating gauge moves downward under the effect of gravity, in the time that piston rod 12 touches jigger, at jiggerDrag effect under, piston rod 12, to the interior retraction of hydraulic cylinder 11, drives conical ring 31 towards elastic ring 32 simultaneouslyMobile, until the outer ring surface of conical ring 31 engages with the inner ring surface of elastic ring 32, i.e. the inner ring surface of elastic ring 32With the outer ring surface interference fit of conical ring 31, elastic ring 32 is out of shape by swell, the elastic ring 32 after swell distortionExternal diameter is greater than the external diameter of nylon sleeve 2, the frictional force producing between the outer ring surface of elastic ring 32 and tube inner wall faceEffect under, oil-pipeline path-ventilating gauge is locked in oil pipe, after oil-pipeline path-ventilating gauge drops on jigger completely, piston rod12 is automatically overhanging, drive simultaneously conical ring 31 dorsad elastic ring 32 move, until the outer ring surface of conical ring 31 and bulletProperty ring 32 inner ring surface be separated, elastic ring 32 lose conical ring 31 active force recover deformation, oil-pipeline path-ventilating gaugeLost the frictional force producing between the outer ring surface of elastic ring 32 and tube inner wall face, under the effect of gravity, continue toLower motion, thus oil pipe latus rectum Inspection completed smoothly.
Optionally, conical ring 31 is taper iron hoop, and elastic ring 32 is rubber ring.
Further, in order to make conical ring 31 depart from smoothly elastic ring 32, in the interior ring of elastic ring 32, be provided with multiplePosition spring 33, back-moving spring 33 is set on piston rod 12, and one end of back-moving spring 33 is resisted against nylon sleeve 2On the end face of hydraulic cylinder 11, its other end is resisted against conical ring 31 on the end face of hydraulic cylinder 11 dorsad,In the time that piston rod 12 touches jigger, under the drag effect of jigger, piston rod 12 drives conical ring 31 courtsMove to elastic ring 32, back-moving spring 33 is compressed simultaneously, after oil-pipeline path-ventilating gauge drops on jigger completely, livesThe automatic overhanging drive conical ring 31 of stopper rod 12 is when elastic ring 32 moves dorsad, and back-moving spring 33 loses conical ring 31Squeezing action power, promote conical ring 31 dorsad elastic ring 32 move, conical ring 31 is at piston rod 12 and springUnder promoting, conical ring 31 departs from rubber ring, completes release simultaneously.
Further again, worn and torn by dirt in oil pipe for fear of conical ring 31, be provided with nylon in conical ring 31 outer coverRing 4, the external diameter of nylon ring 4 equates with the external diameter of nylon sleeve 2, like this, has both effectively ensured conical ring 31Service life, increased again the contact area of oil-pipeline path-ventilating gauge and oil pipe, thereby the dirt in oil pipe can be obtainedTo removing fully.
In a concrete example of the present utility model, the rubbing between dirty for fear of nylon sleeve 2 and tube inner wallWipe the gravity that resistance is greater than oil-pipeline path-ventilating gauge entirety, the situation that causes oil-pipeline path-ventilating gauge not move down by own wt, asShown in Fig. 1, be also arranged with counterweight ring 5 at the external part of piston rod 12, counterweight ring 5 is positioned at conical ring 31 liquid dorsadOne side of cylinder pressure body 11, piston rod 12 stretches out counterweight ring 5, can, according to the user demand of different situations, adjust counterweightThe weight of ring 5, as long as this counterweight ring 5 can meet oil-pipeline path-ventilating gauge can be moved down by self gravitation, can not simultaneouslyJigger is produced to excessive impulsive force.
Optionally, counterweight ring is alloy hoop, for example: steel loop.
In an embodiment of the present utility model, for further reduce oil-pipeline path-ventilating gauge in the time falling to jiggerImpulsive force, as shown in Figure 1, the external part energy dismounting of piston rod 12 be connected with polyurethane buffering piece 6, work as oil pipeWhen jack rabbit falls, first polyurethane buffering piece 6 contacts jigger, utilizes the elasticity of polyurethane buffering piece 6 to do firstLevel buffering, has further reduced oil-pipeline path-ventilating gauge impulsive force to jigger in the time falling, and has ensured the use of jiggerLife-span, effectively avoid jigger to eject simultaneously and hurted sb.'s feelings, ensure staff's security.
Concrete, piston rod 12 is provided with external screw thread, and the middle part of polyurethane buffering piece 6 is provided with through hole, and polyurethane is slowRush piece 6 and be connected in the end of piston rod 12 by spinning of external screw thread and through hole, utilize the bullet of polyurethane materialProperty, piston rod 12 is risen in through hole and can complete the installation of polyurethane buffering piece 6, thereby make polyurethane slowBeing connected between punching and piston rod 12 is simple and convenient, increases piston rod 12 by the screw thread being arranged on piston rod 12And the contact area between polyurethane buffering piece 6, thereby ensure to connect between piston rod 12 and polyurethane buffering piece 6The reliability connecing.
Certainly, polyurethane buffering piece 6 also can adopt other modes and piston rod 12 to join, for example: and connect by key,Or adopt the mode of through hole and piston rod 12 interference fit etc., do not repeat them here.
Further, be also arranged with buffer spring 7 on piston rod 12, one end of buffer spring 7 is resisted against counterweight ring 5End face on, the other end is resisted against on the end face of polyurethane buffering piece 6, the setting of buffer spring 7, further reduceOil-pipeline path-ventilating gauge impulsive force to jigger in the time falling, and this oil-pipeline path-ventilating gauge is had by polyurethane bufferingThe multistage buffer structure that piece 6, buffer spring 7 and piston rod 12 form, multi-buffer structure is protected to greatest extentProtect jigger, reduced the cost of changing jigger, estimated to realize every year 600000 yuan of benefits, avoided simultaneouslyJigger ejects and hurts sb.'s feelings, and has reduced staff's operation injury, and safety benefit is remarkable.
In a preferred embodiment of the present utility model, as shown in Figure 1, hydraulic cylinder 11 is piston rod 12 dorsadA side be provided with outward extending connecting rod 13, the axis conllinear of the axis of connecting rod 13 and piston rod 12, connectCan dismounting on bar 13 be arranged with nylon sleeve 8, the external diameter of nylon sleeve 8 equates with the external diameter of nylon sleeve 2,And the outer surface of nylon sleeve 8 is provided with and is the clean groove 81 of screw-shaped, and this clean groove 81, can make equallyCan in oil pipe, rotate and move downward at oil-pipeline path-ventilating gauge, both reduce the speed that moves downward, can will adhere to againDirty on tube inner wall scrapes and is contained in the clean groove 81 that is screw thread dress, avoids due to dirty making in oil pipeBecome standing valve for oil-well pump card and leakage problem, and well-flushing etc. repeats operation, estimate can realize every year benefit more than 100 ten thousandUnit.
It should be noted that, can directly adopt two-way hydraulic buffer, the concrete structure of two-way hydraulic buffer and makingBe prior art by principle, do not repeat them here, utilize two expansion links of two-way hydraulic buffer respectively as livingStopper rod and connecting rod.
Further, nylon sleeve 2 and piston rod 12 tight fits, to make in use, nylon sleeve 2 can phaseMove for piston rod 12, both ensured that nylon sleeve 2 can disassemble from piston rod 12 bars, has ensured again Buddhist nunThe actor playing a supporting role manage 2 and piston rod 12 between relative position stable; Hydraulic cylinder 11 and nylon sleeve 2 and nylon sleeve 8Between be equipped with polyurethane buffering ring 9, utilize polyurethane material to there is good elasticity, avoided hydraulic cylinder 11With phase mutual friction between nylon sleeve 2 and nylon sleeve 8, cause hydraulic cylinder 11, nylon sleeve 2 and nylon jacketThere are wearing and tearing in cylinder 8, thereby has ensured the service life of hydraulic cylinder 11, nylon sleeve 2 and nylon sleeve 8.
Illustrate the course of work of the oil-pipeline path-ventilating gauge that the utility model provides below in conjunction with accompanying drawing:
As shown in Figure 1, when oil-pipeline path-ventilating gauge is put into oil pipe, oil pipe is raised under the castering action of workover rig, oilPipe jack rabbit moves downward under the effect of gravity, between pipe aperture and nylon sleeve 2 and nylon sleeve 8Limited space, and the outer surface of nylon sleeve 2 is provided with spiral containing groove, the outer surface of nylon sleeve 8Be provided with spiral clean groove 81, fall thereby make oil-pipeline path-ventilating gauge do rotation in oil pipe, when oil pipe leads toFootpath rule are dropped on jigger by the top of oil pipe, and first polyurethane buffering piece 6 contacts jigger and accomplish that the first order is slowPunching, piston rod 12 is forced to inside contract and does second level buffering, and piston rod 12 inside contracts promotion taper iron and makes elastic ring 32 simultaneouslySwell completes locking, and compression reseting spring 33, after oil-pipeline path-ventilating gauge drops on jigger completely, and piston rod 12Automatically overhanging, promote taper iron at piston rod 12 and back-moving spring 33 simultaneously and move downward, depart from elastic ring 32,Elastic ring 32 restores to the original state, and completes release, can complete smoothly latus rectum Inspection.
It should be noted that, in Fig. 1, in order clearly to show the structure of piston rod and connecting rod, by piston rodAnd connecting rod is shown in broken lines.
In sum, the oil-pipeline path-ventilating gauge that the utility model provides, utilizes the feature that piston rod can be flexible, makes oilThe length of pipe jack rabbit can be adjusted, the multi-buffer structure that polyurethane buffering piece, buffer spring and piston rod form,Effectively reduce the impulsive force to jigger, both extended the service life of jigger, thereby saved replacing jiggerCost, avoided again jigger to eject and hurted sb.'s feelings, thereby ensured staff's security;
The oil-pipeline path-ventilating gauge that the utility model provides, utilizes being set on piston rod of nylon sleeve energy dismounting, makes oilPipe jack rabbit can be realized the oil pipe of different pore size is carried out to latus rectum inspection by the nylon sleeve of replacing various outer diameter;
The oil-pipeline path-ventilating gauge that the utility model provides, utilize be arranged on nylon sleeve outer surface to be screw-shaped accommodatingGroove and be arranged on and be the clean groove of screw-shaped on nylon sleeve outer surface, making can be at oil pipe at oil-pipeline path-ventilating gaugeMiddle rotation moves downward, and has both reduced the speed that moves downward, makes this oil-pipeline path-ventilating gauge be difficult for being stuck in oil pipe inside,Effectively improved the efficiency that latus rectum checks, again can by be attached to dirty on tube inner wall scrape be placed in storage tank andIn clean groove, solved due to dirty in oil pipe and caused standing valve for oil-well pump card and leakage, and well-flushing etc. repeats to doIndustry problem;
In addition, compared with steel oil-pipeline path-ventilating gauge, the oil-pipeline path-ventilating gauge providing of the present utility model adopts nylon sleeve,The quality of nylon sleeve is light, can make the overall weight of the oil-pipeline path-ventilating gauge that the utility model provides be reduced to steel oil pipe2/3rds of jack rabbit, thus effectively reduce the impact strength of oil-pipeline path-ventilating gauge to jigger, and nylon materialWearability is four times of copper, and the advantage such as it is little to have coefficient of friction, and mechanical strength is high, and thermal coefficient of expansion is low, thereby largeAmplitude has reduced oil-pipeline path-ventilating gauge that the utility model provides to the particularly wearing and tearing of coating tubing inwall of tube inner wall, entersAnd extended service life of oil pipe, estimating every year can create beneficial result more than 100 ten thousand yuan.
The foregoing is only the schematic detailed description of the invention of the utility model, not in order to limit model of the present utility modelEnclose. Any those of ordinary skill in the art has done under the prerequisite that does not depart from design of the present utility model and principleEquivalent variations and amendment, all should belong to the scope of the utility model protection.

Claims (10)

1. an oil-pipeline path-ventilating gauge, is characterized in that, described oil-pipeline path-ventilating gauge comprises:
Hydraulic bjuffer, described hydraulic bjuffer comprises hydraulic cylinder and is retractablely arranged on described hydraulic cylinder one sidePiston rod;
Nylon sleeve, being set on described piston rod of described nylon sleeve energy dismounting, and described piston rod extends instituteState nylon sleeve, the external diameter of described nylon sleeve is greater than the external diameter of described hydraulic cylinder, the outer surface of described nylon sleeveBe provided with and be screw-shaped storage tank.
2. oil-pipeline path-ventilating gauge according to claim 1, is characterized in that,
The elongated end of described piston rod is arranged with locking device, and described locking device comprises:
Be the conical ring of hole enlargement shape along the bearing of trend of described piston rod, described conical ring is set on described piston rod alsoWith the clamping of described piston rod phase, described piston rod stretches out described conical ring;
Elastic ring, described elastic ring can movable being set on described piston rod and being arranged at described conical ring and described Buddhist nunBetween actor playing a supporting role's pipe, the outer ring surface interference fit of the inner ring surface of described elastic ring and described conical ring, the stretching of described piston rodContracting can drive the outer ring surface of described conical ring and the inner ring surface of described elastic ring are separated or engage.
3. oil-pipeline path-ventilating gauge according to claim 2, is characterized in that,
In the interior ring of described elastic ring, be provided with back-moving spring, described back-moving spring is set on described piston rod, described multipleOne end of position spring is resisted against described nylon sleeve dorsad on the end face of described hydraulic cylinder, described in its other end is resisted againstConical ring is on the end face of described hydraulic cylinder.
4. oil-pipeline path-ventilating gauge according to claim 2, is characterized in that,
Described conical ring outer cover is provided with nylon ring, and the external diameter of described nylon ring equates with the external diameter of described nylon sleeve.
5. oil-pipeline path-ventilating gauge according to claim 2, is characterized in that,
The external part of described piston rod is also arranged with counterweight ring, and described counterweight ring is positioned at described conical ring described hydraulic pressure dorsadOne side of cylinder body, described piston rod stretches out described counterweight ring.
6. oil-pipeline path-ventilating gauge according to claim 5, is characterized in that,
The external part energy dismounting of described piston rod be connected with polyurethane buffering piece.
7. oil-pipeline path-ventilating gauge according to claim 6, is characterized in that,
Described piston rod is provided with external screw thread, and the middle part of described polyurethane buffering piece is provided with through hole, described polyurethane bufferingPiece is connected in the end of described piston rod by spinning of described external screw thread and described through hole.
8. oil-pipeline path-ventilating gauge according to claim 6, is characterized in that,
On described piston rod, be also arranged with buffer spring, one end of described buffer spring is resisted against the end face of described counterweight ringUpper, the other end is resisted against on the end face of described polyurethane buffering piece.
9. according to the oil-pipeline path-ventilating gauge described in any one in claim 1 to 8, it is characterized in that,
A described hydraulic cylinder dorsad side of described piston rod is provided with outward extending connecting rod, the axis of described connecting rodWith the axis conllinear of described piston rod, can dismounting on described connecting rod be arranged with nylon sleeve, described nylon sleeveExternal diameter equates with the external diameter of described nylon sleeve, and the outer surface of described nylon sleeve is provided with, and to be screw-shaped clean recessedGroove.
10. oil-pipeline path-ventilating gauge according to claim 9, is characterized in that,
Described nylon sleeve and described piston rod tight fit, described hydraulic cylinder and described nylon sleeve and described nylonBetween sleeve, be equipped with polyurethane buffering ring.
CN201521030078.4U 2015-12-11 2015-12-11 Oil pipe drift diameter gauge Active CN205300460U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695106A (en) * 2017-10-18 2018-02-16 山西太钢不锈钢股份有限公司 Cold continuous rolling annealed wire line pressure cylinder system improved method
CN108020145A (en) * 2017-11-17 2018-05-11 中国水利水电第十四工程局有限公司 A kind of generator stator rotor clearance measurement tool
CN108534644A (en) * 2018-04-17 2018-09-14 安徽工业大学 A kind of plug is to the heart and fills in device
CN110552648A (en) * 2018-05-31 2019-12-10 中国石油化工股份有限公司 throw-in type drill rod drift diameter gauge and use method thereof
CN115790327A (en) * 2023-02-03 2023-03-14 山东高原油气装备有限公司 Pneumatic full-length drift diameter detection device for petroleum casing pipe

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695106A (en) * 2017-10-18 2018-02-16 山西太钢不锈钢股份有限公司 Cold continuous rolling annealed wire line pressure cylinder system improved method
CN108020145A (en) * 2017-11-17 2018-05-11 中国水利水电第十四工程局有限公司 A kind of generator stator rotor clearance measurement tool
CN108534644A (en) * 2018-04-17 2018-09-14 安徽工业大学 A kind of plug is to the heart and fills in device
CN108534644B (en) * 2018-04-17 2023-08-25 安徽工业大学 Core rod centering and plugging device
CN110552648A (en) * 2018-05-31 2019-12-10 中国石油化工股份有限公司 throw-in type drill rod drift diameter gauge and use method thereof
CN110552648B (en) * 2018-05-31 2022-05-03 中国石油化工股份有限公司 Throw-in type drill rod drift diameter gauge and use method thereof
CN115790327A (en) * 2023-02-03 2023-03-14 山东高原油气装备有限公司 Pneumatic full-length drift diameter detection device for petroleum casing pipe
CN115790327B (en) * 2023-02-03 2023-05-26 山东高原油气装备有限公司 Pneumatic full-length drift diameter detection device for petroleum casing pipe

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