CN212379335U

CN212379335U - Pipeline defect magnetic leakage detection device

Info

Publication number: CN212379335U
Application number: CN202020803219.6U
Authority: CN
Inventors: 卓建中; 曹文逸
Original assignee: Guangdong Dongshui Engineering Project Management Co ltd
Current assignee: Guangdong Dongshui Engineering Project Management Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-19
Anticipated expiration: 2030-05-15

Abstract

The utility model belongs to the technical field of pipeline, and discloses a pipeline defect magnetic leakage detection device, which comprises a detection sleeve, wherein fixing seats are arranged at both ends of the detection sleeve, a detection ring is fixed in the middle of the outer wall of the detection sleeve, a probe is arranged on the outer wall of the detection ring, a magnetic steel ring is sleeved at one side of each of both ends of the outer wall of the detection sleeve, which is close to the detection ring, a leather cup is arranged at the position between the fixing seat and the magnetic steel ring, two leather cups are arranged at the position between both ends of the outer wall of the detection sleeve, the outer wall of the fixing seat is connected with a supporting cylinder, and a fixing rod is arranged at the top of the supporting cylinder. Simple and convenient operation and good use effect.

Description

Pipeline defect magnetic leakage detection device

Technical Field

The utility model belongs to the technical field of the pipeline, concretely relates to pipeline defect magnetic leakage detection device.

Background

The pipeline is a device which is formed by connecting pipes, pipe connectors, valves and the like and used for conveying gas, liquid or fluid with solid particles, has wide application range, is mainly used in water supply, water drainage, heat supply, gas supply, long-distance petroleum and natural gas conveying, agricultural irrigation, hydraulic engineering and various industrial devices, and the magnetic leakage method is one of important means for carrying out nondestructive detection on oil and gas long-distance conveying pipelines.

Chinese patent No. CN201820656654.3 discloses a pipe defect leakage flux detecting device, which can stably and accurately detect whether leakage flux exists in a pipe, there are some drawbacks in use, for example, there is no structure for facilitating the removal and replacement of the support wheels, because the supporting wheels at the contact part of the supporting wheels with the pipeline for a long time are seriously worn and are difficult to remove, thereby the damaged supporting wheel can not be replaced in time, thereby affecting the normal use of the device, in addition, the device enables the supporting wheel to have elasticity by arranging a large number of connecting structures, thereby leading the device to smoothly pass when meeting the diameter-changing part of the pipeline, but the elastic compression effect of the supporting wheel is not good when in actual use, and the movement and the reset of the supporting wheel are not stable, meanwhile, the structure is complex and tedious, and in case that a certain part is damaged and difficult to overhaul and maintain, the practical practicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline defect magnetic leakage detection device to what provide in solving above-mentioned background art does not set up the structure that convenient to detach changed the supporting wheel, and the not good problem of elastic compression effect of supporting wheel.

In order to achieve the above object, the utility model provides a following technical scheme: a pipeline defect magnetic leakage detection device comprises a detection sleeve, wherein both ends of the detection sleeve are provided with a fixed seat, a detection ring is fixed in the middle of the outer wall of the detection sleeve, a probe is installed on the outer wall of the detection ring, magnetic steel rings are sleeved on two ends of the outer wall of the detection sleeve, close to one side of the detection ring, and the leather cups are arranged at the positions between the fixed seats and the magnetic steel rings at the two ends of the outer wall of the detection sleeve, the outer walls of the two fixed seats are both connected with a supporting cylinder, the top of the supporting cylinder is provided with a fixed rod, the top end of the fixed rod is fixed with a supporting guide wheel, and a fixture block is arranged at one end of the fixed rod extending to the inside of the supporting cylinder, a clamping groove matched with the fixture block is arranged at the bottom end of the inside of the supporting cylinder, and a thread cylinder is installed on the top end of the inner wall of the supporting cylinder, and the outer wall of the fixing rod is connected with a thread sleeve matched with the thread cylinder.

Preferably, the inside of fixing base is close to the below of supporting a section of thick bamboo and has seted up the chamber groove, the inside both sides in chamber groove all are fixed with the gag lever post, two the outer wall of gag lever post all overlaps and is equipped with the sliding sleeve, and the below that the outer wall of two gag lever posts is close to the sliding sleeve all installs the spring, the one end of spring is connected with the sliding sleeve, and the other end of spring is connected with the inner wall in chamber groove, two install the fixed plate between the sliding sleeve, the one end that the supporting a section of thick bamboo extends to the chamber inslot portion is connected with the fixed.

Preferably, the inner wall of the clamping groove is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

Preferably, the outer wall of the supporting guide wheel is provided with a rubber sleeve, and the interval between two adjacent supporting guide wheels is equal.

Preferably, a retaining ring is installed at one end, close to the leather cup, of the fixed seat, and the outer wall of the other end of the fixed seat is smooth.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a dead lever, a support section of thick bamboo, swivel nut, draw-in groove and fixture block's cooperation for the dead lever also can take off the dead lever fast when can stabilize with a support section of thick bamboo and be connected, thereby realized supporting the quick installation and the dismantlement of guide pulley, so that in time change the support guide pulley of damage, easy operation is convenient, excellent in use effect.

(2) The utility model discloses a cooperation of chamber groove, fixed plate, sliding sleeve, gag lever post and spring can make the support guide pulley have better elastic compression effect to can make the removal and the reseing that the support guide pulley can rapid stabilization, the structure is succinct ingenious, need not loaded down with trivial details operation, has improved the practicality of device greatly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of the fixing base of the present invention when connected to the supporting cylinder;

in the figure: 1-a fixed seat; 2-clamping blocks; 3-thread sleeve; 4-detecting the sleeve; 5-a detection ring; 6-a probe; 7-a magnetic steel ring; 8-a leather cup; 9-fixing the rod; 10-supporting guide wheels; 11-a support cylinder; 12-a threaded cylinder; 13-a card slot; 14-cavity groove; 15-a spring; 16-a fixed plate; 17-a sliding sleeve; 18-limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a pipeline defect magnetic leakage detection device comprises a detection sleeve 4, wherein fixing seats 1 are respectively arranged at two ends of the detection sleeve 4, a detection ring 5 is fixed in the middle of the outer wall of the detection sleeve 4, a probe 6 is arranged on the outer wall of the detection ring 5, a magnet steel ring 7 is sleeved at one side, close to the detection ring 5, of each of the two ends of the outer wall of the detection sleeve 4, a leather cup 8 is arranged at a position, between the fixing seats 1 and the magnet steel ring 7, of each of the two ends of the outer wall of the detection sleeve 4, supporting cylinders 11 are respectively connected with the outer walls of the two fixing seats 1, a fixing rod 9 is arranged at the top of each of the supporting cylinders 11, a supporting guide wheel 10 is fixed at the top end of each fixing rod 9, a clamping block 2 is arranged at one end, extending to the inside of each supporting cylinder 11, a clamping groove 13 matched with the clamping block 2 is arranged at the bottom end inside each supporting cylinder, through inserting dead lever 9 in supporting a section of thick bamboo 11, and rotate dead lever 9, then swivel nut 3 closes with a screw thread section of thick bamboo 12 each other soon and is connected, later fixture block 2 gets into in draw-in groove 13, make fixture block 2 and the mutual block of draw-in groove 13, thereby make dead lever 9 stabilize on supporting a section of thick bamboo 11, can take off it from supporting a section of thick bamboo 11 fast through reverse rotation dead lever 9 simultaneously, and then realized the dismantlement of supporting guide pulley 10, so that in time take off the support guide pulley 10 of damage and change, and easy operation is convenient, and good use effect.

Further, a cavity groove 14 is arranged in the fixing seat 1 and close to the lower part of the supporting cylinder 11, two sides in the cavity groove 14 are fixed with limit rods 18, the outer walls of the two limit rods 18 are sleeved with sliding sleeves 17, springs 15 are arranged on the outer walls of the two limit rods 18 and close to the lower part of the sliding sleeves 17, one end of each spring 15 is connected with the corresponding sliding sleeve 17, the other end of each spring 15 is connected with the inner wall of the cavity groove 14, a fixing plate 16 is arranged between the two sliding sleeves 17, one end of each supporting cylinder 11 extending to the inside of the corresponding cavity groove 14 is connected with the corresponding fixing plate 16, when the device passes through the pipeline reducing part, the supporting guide wheels 10 can drive the supporting cylinders 11 to enter the cavity grooves 14 through the fixing rods 9, so that the supporting cylinders 11 drive one ends of the fixing plates 16, then the sliding sleeves 17 at the two ends of the fixing plates 16 can slide on the limit rods 18, therefore, the supporting guide wheel 10 can move and reset quickly and stably, the structure is simple and ingenious, complex operation is not needed, and the practicability of the device is greatly improved.

Further, the backing plate is installed to the inner wall of draw-in groove 13, and the backing plate has firm effect, and the outer wall of backing plate has seted up anti-skidding groove.

Specifically, the rubber sleeve is installed to the outer wall that supports guide pulley 10, and the rubber sleeve can protect supporting guide pulley 10, reduces the wearing and tearing when rubbing with the pipeline, and two adjacent supporting guide pulleys 10's interval equals.

Specifically, the retaining ring is installed to the one end that fixing base 1 is close to leather cup 8, and the other end outer wall of fixing base 1 is slick and sly, through slick and sly transition so that the better circulation in the pipeline of device.

The utility model discloses a theory of operation and use flow: when the utility model is used, the fixing rod 9 is inserted into the supporting cylinder 11, the fixing rod 9 is rotated, the screw sleeve 3 is screwed with the threaded cylinder 12, then the clamping block 2 enters the clamping groove 13, the clamping block 2 is clamped with the clamping groove 13, so that the fixing rod 9 is fixed on the supporting cylinder 11, the supporting guide wheel 10 is fixed on the fixing seat 1, the device is sent into the oil pipe after the supporting guide wheel 10 is installed, the liquid in the oil pipe pushes the detecting sleeve 4 to move forward along the oil pipe, when the diameter-changing part of the pipeline passes through, the supporting guide wheel 10 can drive the supporting cylinder 11 to enter the cavity groove 14 through the fixing rod 9, the supporting cylinder 11 drives one end of the fixing plate 16, then the sliding sleeves 17 at the two ends of the fixing plate 16 can slide on the limiting rod 18 and extrude the spring 15, the spring 15 is deformed and rapidly reset when no extrusion exists, so that the supporting guide wheel 10 can rapidly and stably move and, the structure is simple and ingenious, the complex operation is not needed, then the pipe wall of the pipeline can be fully magnetized through the magnetic steel ring 7, when the local magnetic flux of the object to be measured is saturated, two poles of the magnet and the object to be measured form a closed magnetic field, when a defect is reached on the wall of the oil pipe, the magnetic resistance at and near the defect is increased, so that the magnetic field near the defect is distorted, most of the magnetic flux can bypass the defect in the workpiece, a small part of the magnetic flux can pass through the defect, and finally, part of the magnetic flux leaves the upper surface and the lower surface of the workpiece and bypasses the defect through air, so that it can be detected by the probe 6, and, in addition, can be quickly removed from the supporting cylinder 11 by rotating the fixing lever 9 in the opposite direction, and then realized supporting guide wheel 10's dismantlement to in time take off the supporting guide wheel 10 of damage and change, easy operation is convenient, excellent in use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline defect magnetic leakage detection device which characterized in that: comprises a detection sleeve (4), wherein fixing seats (1) are respectively installed at two ends of the detection sleeve (4), a detection ring (5) is fixed in the middle of the outer wall of the detection sleeve (4), a probe (6) is installed on the outer wall of the detection ring (5), a magnetic steel ring (7) is sleeved on one side, close to the detection ring (5), of two ends of the outer wall of the detection sleeve (4), a leather cup (8) is installed at a position, between the fixing seats (1) and the magnetic steel ring (7), of two ends of the outer wall of the detection sleeve (4), supporting cylinders (11) are respectively connected with the outer wall of the two fixing seats (1), a fixing rod (9) is installed at the top of each supporting cylinder (11), a supporting guide wheel (10) is fixed at the top end of each fixing rod (9), a clamping block (2) is installed at one end, extending to the inside of each supporting cylinder (11), clamping grooves (13) matched with the clamping blocks (2) are formed in, and a threaded cylinder (12) is installed on the top end of the inner wall of the supporting cylinder (11), and the outer wall of the fixing rod (9) is connected with a threaded sleeve (3) matched with the threaded cylinder (12).

2. The pipeline defect flux leakage detection device of claim 1, wherein: the utility model discloses a fixing base, including fixing base (1), the inside below that is close to supporting a section of thick bamboo (11) of fixing base (1) has seted up chamber groove (14), the inside both sides of chamber groove (14) all are fixed with gag lever post (18), two the outer wall of gag lever post (18) all overlaps and is equipped with sliding sleeve (17), and the below that the outer wall of two gag lever posts (18) is close to sliding sleeve (17) all installs spring (15), the one end of spring (15) is connected with sliding sleeve (17), and the other end of spring (15) is connected with the inner wall of chamber groove (14), two install fixed plate (16) between sliding sleeve (17), supporting a section of thick bamboo (11) and extending to the inside one end of chamber groove (14) and being connected with fixed plate (.

3. The pipeline defect flux leakage detection device of claim 1, wherein: the inner wall of the clamping groove (13) is provided with a backing plate, and the outer wall of the backing plate is provided with an anti-slip groove.

4. The pipeline defect flux leakage detection device of claim 1, wherein: the outer wall of each supporting guide wheel (10) is provided with a rubber sleeve, and the intervals of two adjacent supporting guide wheels (10) are equal.

5. The pipeline defect flux leakage detection device of claim 1, wherein: a retaining ring is installed at one end, close to the leather cup (8), of the fixing seat (1), and the outer wall of the other end of the fixing seat (1) is smooth.