CN209238625U - Magnetic pipeline cleaner and duplex pipe cleaner - Google Patents
Magnetic pipeline cleaner and duplex pipe cleaner Download PDFInfo
- Publication number
- CN209238625U CN209238625U CN201821895677.6U CN201821895677U CN209238625U CN 209238625 U CN209238625 U CN 209238625U CN 201821895677 U CN201821895677 U CN 201821895677U CN 209238625 U CN209238625 U CN 209238625U
- Authority
- CN
- China
- Prior art keywords
- steel brush
- magnetic
- axis body
- cleaner
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 95
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 109
- 239000010959 steel Substances 0.000 claims abstract description 109
- 239000010985 leather Substances 0.000 claims abstract description 31
- 239000000428 dust Substances 0.000 claims description 8
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000005307 ferromagnetism Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 230000005294 ferromagnetic effect Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- Cleaning In General (AREA)
Abstract
A kind of magnetic pipeline cleaner and duplex pipe cleaner, magnetic pipeline cleaner includes forward and backward connector, magnetic force steel brush component is installed between forward and backward connector, magnetic force steel brush component includes the flexible magnetic pole base ring being installed on forward and backward connector, flexible magnetic pole base ring outer surface is circumferentially arranged with multiple magnet and yoke, each magnet is arranged alternately with yoke, is respectively equipped with flexible magnetic pole on magnet, yoke；Duplex pipe cleaner includes strength pipe cleaner and magnetic pipeline cleaner, strength pipe cleaner includes axis body, axis body is connect by universal locking nub with preceding connector, axis body front and rear portions install leather cup, steel brush component is installed between two leather cups on axis body, the steel brush staple length of steel brush component is the magnitude of interference that 5%-8% is contacted with duct wall.The utility model structure is simple, can effectively remove ferromagnetism solid matter in pipeline, moreover it is possible to further remove dirt in pipeline, and can ensure that steel brush works normally in entire reset procedure, when tube wall changes, flexible steel brush contacts not with tube wall will cause card ball.
Description
Technical field
The utility model relates to pipeline cleaning technical field, a kind of magnetic pipeline cleaner and duplex pipe cleaner are in particulard relate to.
Background technique
Magnetic pipe cleaner global at present is substantially all having the same to use problem: i.e. selection magnet magnetism is weak, magnetic pole
The tube wall of surface distance pipeline it is remote (because magnet is rigid design, cannot be close to pipe wall, otherwise the handling capacity of pipe cleaner will
It is problematic), due to square being inversely proportional for space magnetic induction intensity and distance, the magnetic field at magnet poles can also make reluctantly
With, but at pipe wall, magnetic induction intensity is greatly lowered, and is greatly declined with the ability that ferromagnetism dirt in pipeline is picked up in its suction；
In addition two magnetic poles of magnet in existing magnetic pipe cleaner are only utilized one, the matrix connection of another magnetic pole and pipe cleaner
Knot does not have the purpose inhaled and pick up Ferromagnetic Impurities, therefore the utilization rate of magnetic pole only has 50%.
Therefore, how to design a kind of can solve the magnetic pipeline cleaner of above-mentioned technical problem and duplex pipe cleaner is the present inventor
The project concentrated on studies.
Utility model content
The purpose of the utility model is to provide a kind of magnetic pipeline cleaner and duplex pipe cleaner, structure design is simple, can have
Effect removes ferromagnetic solid matter in pipeline, and duplex pipe cleaner can also further remove the dirt in pipeline, and can ensure that steel
Brush works normally in entire reset procedure, and when inner wall of the pipe changes, flexible steel brush can be contacted with tube wall, without making
Cheng Kaqiu.
In order to realize above scheme, the utility model provides a kind of magnetic pipeline cleaner, including preceding connector and rear connection
Fitting, is equipped with magnetic force steel brush component between the preceding connector and rear connector, the magnetic force steel brush component includes being installed on
Flexible magnetic pole base ring on preceding connector and rear connector, flexible magnetic pole base ring outer surface circumferentially arranged with multiple magnet and
Multiple yokes, each magnet are arranged alternately with yoke, are respectively equipped with flexible magnetic pole on the magnet, yoke.
The utility model magnetic pipeline cleaner, the plurality of flexible magnetic pole are uniformly set along flexible magnetic pole base ring outer surface
It sets, the flexible magnetic pole is made of using flexible steel brush, each flexible steel brush densely covered steel brush hair, the suspension of the steel brush hair
Holding the distance apart from inner wall of the pipe is 30-50mm.
The utility model magnetic pipeline cleaner, wherein the magnet uses neodymium iron boron high energy product magnet.
The utility model magnetic pipeline cleaner, wherein the two sides of the preceding connector and rear connector are separately installed with fixation
Orchid is separately installed with positioning disk on the outside of two mounting flanges, and the lateral surface of two positioning disks is separately installed with anti-
It rams.
The utility model magnetic pipeline cleaner, the position described in two of them between mounting flange and two positioning disks are pacified respectively
Dress is there are two seal disc, between two seal discs of each side, between seal disc and mounting flange and seal disc and positioning disk
Between be separately installed with spacer.
A kind of duplex pipe cleaner, including strength pipe cleaner and the magnetic pipeline cleaner, the strength pipe cleaner packet
Axis body is included, the axis body is connect by universal locking nub with the preceding connector of the magnetic pipeline cleaner, the front and rear portions of the axis body
It is separately installed with leather cup, the position being located between two leather cups on the axis body is equipped with steel brush component, and the steel brush component leans on
Nearly rear portion leather cup, the steel brush staple length of the steel brush component is the magnitude of interference that 5%-8% is contacted with duct wall.
The utility model duplex pipe cleaner, wherein the steel brush component includes the steel brush base ring being installed on axis body, institute
It states steel brush pedestal ring outer surface and is circumferentially uniformly provided with multiple steel brushes, each steel brush is made of densely covered steel brush hair, the steel
Bristle uses cold group of steel wire of high-carbon.
The utility model duplex pipe cleaner is located at front skin on the axis body wall wherein the axis body is hollow tube body
The rear of bowl, which is equipped with, can lead to the first through hole of dust, and the rear that steel brush component is located on the axis body wall, which is equipped with, can lead to the of dust
Two through-holes.
The utility model duplex pipe cleaner is equipped with the first support wherein being located at before the leather cup of front on the axis body
Disk, the position on the axis body between steel brush component and rear portion leather cup are equipped with seal disc, the seal disc and steel brush group
The distance of part is 30mm.
The utility model duplex pipe cleaner, wherein the rear end of the rear connector of the magnetic pipeline cleaner is successively connected by bolt
Connect the second support plate and supported flange.
After adopting the above scheme, the utility model magnetic pipeline cleaner and duplex pipe cleaner have the advantages that
1, the utility model magnetic pipeline cleaner between preceding connector and rear connector by connecting magnetic force steel brush component, magnetic
The pole N of iron and S are extremely fully utilized, the magnetic polarity of flexible magnetic pole, and the pole N and the pole S alternate, and flexible magnetic pole can low coverage
From close to pipe wall, so that the pole N and S pole span can be reduced to 30-50 millimeters from inner wall of the pipe, picked up in pipeline to sufficiently inhale
Ferromagnetic Impurities, when inner wall of the pipe size changes, the steel brush Mao Keyu tube wall of flexible steel brush is contacted, without will cause card
Ball；
2, it combines to form duplex pipe cleaner by hanging magnetic pipeline cleaner in the rear end of strength pipe cleaner, structure design letter
Single, strength pipe cleaner uses big steel brush, and sectional area is currently widely used 2-3 times of steel brush sectional area, 5%-8% high
Magnitude of interference, make its clear up dirt it is thoroughly effective, by using front and back double leather cup design, steel brush use front and back asymmetric design,
Ensure that the axis body elbow handling capacity of strength pipe cleaner, the first support plate of leather cup front end are set using reinforced dual-gripper disk in this way
Meter increases the enabling capabilities of strength pipe cleaner front end while guaranteeing the handling capacity of strength pipe cleaner, and ensures strength
Two leather cups of pipe cleaner do not generate eccentric wear；Because of the steel brush using high clean-up capability, the big high magnitude of interference of sectional area, using two skins
Bowl promotes, and has higher propulsion reliability than the propulsion of straight panel sealing plate；By be arranged on axis body inner wall special first through hole,
Second through-hole by-pass prot design is kept away so that the dust that steel brush is removed can be carried to the front of strength pipe cleaner by bypass flow
Exempt from dirt to accumulate in strength pipe cleaner steel brush attachment, it is ensured that the normal and continuous operation of steel brush, duplex pipe cleaner can be efficiently primary complete
At the removing work twice of Ferromagnetic Impurities and dirt, and reduce the consumption of leather cup.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model magnetic pipeline cleaner；
Fig. 2 is the dimensional decomposition structure diagram of the utility model magnetic pipeline cleaner；
Fig. 3 is the dimensional decomposition structure diagram of the utility model duplex pipe cleaner；
Fig. 4 is the three-dimensional schematic diagram of the utility model duplex pipe cleaner.
Description of symbols:
1, preceding connector；2, flexible magnetic pole base ring；3, magnet；4, iron is rolled；5, flexible steel brush；
6, mounting flange；7, positioning disk；8, prevent raming；9, seal disc；10, spacer；
11, universal locking nub；12, rear connector；13, axis body；14, leather cup；
15, steel brush base ring；16, steel brush；17, first through hole；18, the second through-hole；
19, the first support plate；20, seal disc；21, the second support plate；22, supported flange.
Specific embodiment
As shown in Figure 1 and Figure 2, the utility model magnetic pipeline cleaner includes preceding connector 1 and rear connector 12, preceding connector 1
Magnetic force steel brush component is installed between rear connector 12, magnetic force steel brush component includes being installed on preceding connector 1 and rear connector
Flexible magnetic pole base ring 2 on 12, which is the skeleton made of Steel material.The outer surface of flexible magnetic pole base ring 2
It is circumferentially uniformly provided with multiple magnet 3 and multiple yokes 4, magnet 3 uses neodymium iron boron high energy product magnet.The magnet of the present embodiment
3 and yoke 4 be disposed as four.Each magnet 3, in being arranged alternately, is respectively equipped with flexible magnetic pole on magnet 3, yoke 4 with yoke 4,
Flexible magnetic pole is made of using flexible steel brush 5, each flexibility steel brush 5 densely covered steel brush hair, and the suspension end of steel brush hair is in pipeline
The distance of wall is 30-50mm.
The front and rear sides of preceding connector 1 and rear connector 12 are separately installed with mounting flange 6, two mounting flanges 6 it is outer
Side is separately installed with positioning disk 7 made of polyurethane material, the lateral surface of two positioning disks 7 be separately installed with it is anti-ram 8, prevent
Ram 8 outer surface is coated by polyurethane material.Position between two mounting flanges 6 and two positioning disks 7 is separately installed with
Two seal disc 9 made of polyurethane material, between two seal discs 9 of each side, between seal disc 9 and mounting flange 6 and
Spacer 10 is separately installed between seal disc 9 and positioning disk 7.
In use, the utility model magnetic pipeline cleaner to be placed in the inner cavity of oil pipe, pass through the magnetic being arranged on preceding connector 1
Power steel brush component, the pole N of magnet 3 and S are extremely fully utilized, the magnetic polarity of flexible magnetic pole, and the pole N and the pole S alternate,
Flexible magnetic pole can be closely close to pipe wall, so that the pole N and S pole span can be reduced to 30-50 millimeters from inner wall of the pipe, to fill
Divide the Ferromagnetic Impurities inhaled and picked up in pipeline, when inner wall of the pipe size changes, the steel brush Mao Keyu tube wall of flexible steel brush 5 is connect
Touching, without will cause card ball.
By carrying additionally magnetic pipeline cleaner in the rear end of strength pipe cleaner, duplex pipe cleaner can be formed.
As shown in Figure 3, Figure 4, the utility model duplex pipe cleaner includes positioned at the strength pipe cleaner of front and positioned at rear portion
Magnetic pipeline cleaner.
Strength pipe cleaner includes axis body 13, and axis body 13 is connect by universal locking nub 11 with magnetic pipeline cleaner, during axis body 13 is
Empty tube body.The front and rear portions of axis body 13 are separately installed with leather cup 14 made of polyurethane material, and two leather cups 14 are strong for this
The propulsion of power pipe cleaner.It is located at the position between two leather cups 14 on axis body 13 and steel brush component is installed, steel brush component is after
Portion's leather cup 14, steel brush component include the steel brush base ring 15 being installed on axis body 13, and the outer surface of steel brush base ring 15 is circumferentially
Multiple steel brushes 16 are uniformly provided with, the present embodiment steel brush 16 is provided with 12, and steel brush 16 is used for the dirt cleared up on tube wall.Each steel brush
16 are made of densely covered steel brush hair, and steel brush hair uses cold group of steel wire of high-carbon.The steel brush staple length of steel brush component is and pipeline
Wall contacts the magnitude of interference for having 5%-8%.It is logical equipped with can lead to dust first positioned at the rear of front leather cup 14 on the wall of axis body 13
Hole 17, the rear that steel brush component is located on the wall of axis body 13 are equipped with the second through-hole 18 that can lead to dust.It is located at front on axis body 13
The first support plate 19 made of polyurethane material is installed, first support plate 19 is using reinforced double branch before leather cup 14
Support plate design increases the enabling capabilities of strength pipe cleaner front end, axis body 13 while guaranteeing strength pipe cleaner handling capacity
The upper position between steel brush component and rear portion leather cup 14 is equipped with seal disc 20 made of polyurethane material, seal disc 20
With at a distance from steel brush component be 30mm.It can ensure that strength pipe cleaner by installing two the first support plates 19 before axis body 13
Two leather cups 14 do not generate eccentric wear.
Magnetic pipeline cleaner includes preceding connector 1, rear connector 12 and is set between preceding connector 1 and rear connector 12
Magnetic force steel brush component, the rear end of preceding connector 1 and the front end of rear connector 12 are respectively equipped with ring flange, and two ring flanges lead to respectively
It crosses and is bolted magnetic force steel brush component, magnetic force steel brush component includes the flexible magnetic pole bottom connecting with preceding connector 1, rear connector 12
Ring 2, which is the skeleton made of Steel material.The outer surface of flexible magnetic pole base ring 2 is circumferentially uniformly provided with more
A magnet 3 and multiple yokes 4, magnet 3 use neodymium iron boron high energy product magnet.The magnet 3 and yoke 4 of the present embodiment are disposed as
Four.Each magnet 3, in being arranged alternately, is respectively equipped with flexible magnetic pole, flexible magnetic pole is using flexible with yoke 4 on magnet 3, yoke 4
Steel brush 5, each flexibility steel brush 5 are made of densely covered steel brush hair, and distance of the suspension end of steel brush hair apart from inner wall of the pipe is 30-
50mm.Preceding connector 1 is connect by universal locking nub 11 with the axis body 13 of strength pipe cleaner, and the rear end of rear connector 12 passes through bolt
It is sequentially connected the second support plate 21 and supported flange 22.
By being applied in combination magnetic pipeline cleaner and strength pipe cleaner to form duplex pipe cleaner, structure is set the utility model
Meter is simple, and magnetic pipeline cleaner passes through the magnetic force steel brush component that is arranged between preceding connector 1 and rear connector 12, the pole N of magnet 3
It is extremely fully utilized with S, the magnetic polarity of flexible magnetic pole, the pole N and the pole S alternate, and flexible magnetic pole can be closely close
Pipe wall, so that the pole N and S pole span can be reduced to 30-50 millimeters from inner wall of the pipe, to sufficiently inhale the ferromagnetism picked up in pipeline
Impurity, when inner wall of the pipe size changes, the steel brush Mao Keyu tube wall of flexible steel brush 5 is contacted, without will cause card ball；Strongly
Pipe cleaner uses big steel brush 16, and sectional area is currently widely used 2-3 times of steel brush sectional area, the mistake of 5%-8% high
The amount of being full of, clearing up it, dirt is thoroughly effective, and by using the design of front and back double leather cup 14, steel brush 16 uses front and back asymmetric design,
Ensure the 13 elbow handling capacity of axis body of strength pipe cleaner in this way, the first support plate 19 of 14 front end of leather cup is using reinforced double branch
Support plate design increases the enabling capabilities of strength pipe cleaner front end, and really while guaranteeing the handling capacity of strength pipe cleaner
Two leather cups 14 for protecting strength pipe cleaner do not generate eccentric wear；Because using high clean-up capability steel brush 16, the big high magnitude of interference of sectional area,
It is promoted using two leather cups 14, has higher propulsion reliability than the propulsion of straight panel sealing plate；By being arranged on 13 inner wall of axis body
Special first through hole 17,18 by-pass prot of the second through-hole design, so that the dust that steel brush 16 is removed can be carried by bypass flow
To the front of strength pipe cleaner, dirt is avoided to accumulate in strength pipe cleaner steel brush attachment, it is ensured that the normal and continuous operation of steel brush 16,
Duplex pipe cleaner efficiently can once complete the removing work twice of Ferromagnetic Impurities and dirt, and reduce the consumption of leather cup.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical new to this
The range of type is defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel pair
The various changes and improvements that the technical solution of the utility model is made should all fall into claims determination of the utility model
In protection scope.
Claims (10)
1. a kind of magnetic pipeline cleaner, which is characterized in that including preceding connector and rear connector, the preceding connector and rear connector
Between magnetic force steel brush component is installed, the magnetic force steel brush component includes the flexible magnetic being installed on preceding connector and rear connector
Pole base ring, flexible magnetic pole base ring outer surface are handed over circumferentially arranged with multiple magnet and multiple yokes, each magnet and yoke
For setting, flexible magnetic pole is respectively equipped on the magnet, yoke.
2. magnetic pipeline cleaner according to claim 1, which is characterized in that multiple flexible magnetic poles are along flexible magnetic pole base ring
Outer surface is uniformly arranged, and using flexible steel brush, each flexible steel brush is made of the flexible magnetic pole densely covered steel brush hair, described
Distance of the suspension end of steel brush hair apart from inner wall of the pipe is 30-50mm.
3. magnetic pipeline cleaner according to claim 2, which is characterized in that the magnet uses neodymium iron boron high energy product magnetic
Body.
4. magnetic pipeline cleaner according to claim 3, which is characterized in that the two sides of the preceding connector and rear connector point
Mounting flange is not installed, positioning disk, the outside of two positioning disks are separately installed on the outside of two mounting flanges
Face is separately installed with anti-ram.
5. magnetic pipeline cleaner according to claim 4, which is characterized in that two mounting flanges and two positioning disks it
Between position be separately installed with two seal discs, between two seal discs of each side, between seal disc and mounting flange and
Spacer is separately installed between seal disc and positioning disk.
6. a kind of duplex pipe cleaner, which is characterized in that clear including strength pipe cleaner and the described in any item magnetic force of claim 1-3
Pipe device, the strength pipe cleaner includes axis body, the preceding connector that the axis body passes through universal locking nub and the magnetic pipeline cleaner
Connection, the front and rear portions of the axis body are separately installed with leather cup, and the position being located between two leather cups on the axis body is equipped with steel
Brush assemblies, the steel brush component are to have contacted 5%- with duct wall close to rear portion leather cup, the steel brush staple length of the steel brush component
8% magnitude of interference.
7. duplex pipe cleaner according to claim 6, which is characterized in that the steel brush component includes being installed on axis body
Steel brush base ring, the steel brush pedestal ring outer surface are circumferentially uniformly provided with multiple steel brushes, and each steel brush is by densely covered steel brush
Hair composition, the steel brush hair use cold group of steel wire of high-carbon.
8. duplex pipe cleaner according to claim 7, which is characterized in that the axis body is hollow tube body, the axis body
The first through hole that can lead to dust is equipped on wall positioned at the rear of front leather cup, the rear that steel brush component is located on the axis body wall is set
There is the second through-hole that can lead to dust.
9. duplex pipe cleaner according to claim 8, which is characterized in that be located at before the leather cup of front on the axis body and pacify
Equipped with the first support plate, the position on the axis body between steel brush component and rear portion leather cup is equipped with seal disc, described close
Closing disk is 30mm at a distance from steel brush component.
10. duplex pipe cleaner according to claim 6, which is characterized in that after the rear connector of the magnetic pipeline cleaner
End is sequentially connected the second support plate and supported flange by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821895677.6U CN209238625U (en) | 2018-11-15 | 2018-11-15 | Magnetic pipeline cleaner and duplex pipe cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821895677.6U CN209238625U (en) | 2018-11-15 | 2018-11-15 | Magnetic pipeline cleaner and duplex pipe cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209238625U true CN209238625U (en) | 2019-08-13 |
Family
ID=67528637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821895677.6U Expired - Fee Related CN209238625U (en) | 2018-11-15 | 2018-11-15 | Magnetic pipeline cleaner and duplex pipe cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209238625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185448A (en) * | 2018-11-15 | 2020-05-22 | 北京派普兰管道科技有限公司 | Magnetic pipe cleaner and duplex pipe cleaner |
| CN114951168A (en) * | 2022-04-25 | 2022-08-30 | 宁波锦征科技有限公司 | Petroleum pipeline cleaner |
-
2018
- 2018-11-15 CN CN201821895677.6U patent/CN209238625U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185448A (en) * | 2018-11-15 | 2020-05-22 | 北京派普兰管道科技有限公司 | Magnetic pipe cleaner and duplex pipe cleaner |
| CN114951168A (en) * | 2022-04-25 | 2022-08-30 | 宁波锦征科技有限公司 | Petroleum pipeline cleaner |
| CN114951168B (en) * | 2022-04-25 | 2024-01-16 | 宁波锦征科技有限公司 | Petroleum pipeline cleaner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Pipeline Technology Co.,Ltd. Person in charge of patentsThe principal of patent Document name: Notice of Termination of Patent Rights |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190813 |