CN104841673A - Steel pipe inner and outer wall cleaning device - Google Patents
Steel pipe inner and outer wall cleaning device Download PDFInfo
- Publication number
- CN104841673A CN104841673A CN201510311285.5A CN201510311285A CN104841673A CN 104841673 A CN104841673 A CN 104841673A CN 201510311285 A CN201510311285 A CN 201510311285A CN 104841673 A CN104841673 A CN 104841673A
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- China
- Prior art keywords
- shower nozzle
- steel pipe
- liquid outlet
- piston body
- wall cleaning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0322—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid in combination with a plug, e.g. inflatable mole, to isolate a part of the tube
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a steel pipe inner and outer wall cleaning device, which comprises a main pipe body, wherein the rear end of the main pipe body is a liquid inlet end, the front end of the main pipe body is provided with a coaxial spray head, and the front end of the spray head is provided with a liquid outlet which can be communicated with the liquid inlet end so as to form a spray nozzle. The steel pipe inner and outer wall cleaning device is characterized in that the liquid outlet comprises an inner wall cleaning liquid outlet and an outer cleaning liquid outlet, the middle part of the spray head is coaxially provided with a forward frustum body, the periphery of the spray head is provided with a ring-shaped sleeve body, the frustum body and the ring-shaped sleeve body clamp to form a ring of positioning groove which is provided for a steel pipe to be cleaned to insert and can position the steel pipe to be cleaned to the frustum body, the middle part of the front end of the frustum body forms an inner wall cleaning liquid outlet, and the bottom of the positioning groove forms a ring of outer wall cleaning liquid outlet. The steel pipe inner and outer wall cleaning device can realize cleaning for the inner and outer walls of a steel pipe simultaneously, and has the advantages of good cleaning effect, high cleaning efficiency, convenient operation and ability of more saving a cleaning liquid.
Description
Technical field
The present invention relates to steel pipe's production technical field, particularly relate in a kind of steel pipe's production process, carry out the steel pipe inside and outside wall cleaning device cleaned.
Background technology
Steel pipe is after cold rolling producing, having some impurity such as spot, impurity and oil etc. remains on the inside and outside wall of steel pipe, if do not clean out these impurity etc., the inside and outside wall of steel pipe will suffer erosion, easily cause the damage of steel pipe, thus cause the Quality Down of steel pipe, decrease the service life of steel pipe, so the cleaning of the inside and outside wall of steel pipe is absolutely necessary with very important.At present, when cleaning the inside and outside wall of steel pipe, be all adopt common straight-through spray gun or shower nozzle to carry out spray cleaning solution to steel pipe inner wall in the porch of steel pipe usually., there is following defect in this existing washing steel pipes mode:
1, can only aim at outer wall of steel pipe separately or inwall cleans, cleaning efficiency is lower.2, be generally separately switch valve is installed during cleaning, first open switch valve, and then aim at washing steel pipes, a part of cleaning fluid can be lost, cause waste; If first aim at steel pipe to open switch valve again, then can cause operation inconvenience.3, be that the current of constant water speed clean during cleaning, cleaning performance is limited.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide a kind of cleaning that can simultaneously realize steel pipe inside and outside wall, cleaning performance is good, and cleaning efficiency is high, easy to operate and more save the steel pipe inside and outside wall cleaning device of cleaning fluid.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of steel pipe inside and outside wall cleaning device, comprise main pipe, main pipe rear end is liquid feeding end, main pipe front end is provided with the shower nozzle of coaxial inner conductor, shower nozzle front end is provided with the liquid outlet that can be communicated with liquid feeding end and forms nozzle, it is characterized in that, described liquid outlet comprises inner wall washing liquid outlet and outer wall washing liquid outlet; Described shower nozzle front center is coaxially arranged with protruding forward and smaller diameter end cone table forward, shower nozzle front end periphery position is coaxially arranged with the annular body that a circle extends to forward cone table periphery, fold between described cone table and annular body and be formed with circle confession steel pipe insertion to be cleaned and the detent that can navigate on cone table, described cone table edge is perpendicular in the cross section circle of direction of axis line, and the cross section circle place plane identical with pipe diameter to be cleaned is greater than outer diameter of steel pipes to be cleaned with the annulus external diameter that detent cuts formation mutually; Described cone table front center forms inner wall washing liquid outlet, and described detent bottom land place forms a ring outer wall cleaning liquid outlet; Inner wall washing liquid outlet front end inner chamber is the outside taper type of larger diameter end.
Like this, the present invention can complete the cleaning of steel pipe surfaces externally and internally simultaneously, improves cleaning efficiency.During use, steel pipe one end to be cleaned is inserted into detent inner position, realizes the cleaning to steel pipe inner wall by inner wall washing liquid outlet fluid, and outer wall washing liquid outlet fluid realizes the cleaning to outer wall of steel pipe simultaneously.Therefore the cleaning that not only can simultaneously realize inside and outside steel pipe, and simple and ingenious structure, facilitate cleaning behind steel pipe and shower nozzle location, improve ease-to-operate and cleaning reliability.In addition, inner wall washing liquid outlet front end inner chamber is the outside taper type of larger diameter end, and the liquid that inner wall washing liquid outlet can be made to spray like this is horn-like, is beneficial to the cleaning performance improved steel pipe inner wall.
As optimization, described cone table outer surface is positioned at the elastic ring mounting groove that the cross section circle anterior position identical with pipe diameter to be cleaned is circumferentially provided with annular, is provided with the shock absorbing resilient circle that outside protrudes from cone table surface in elastic ring mounting groove.Installation during washing steel pipes can be facilitated to locate by shock absorbing resilient circle like this, protect steel tube end part seamed edge, collision free is dampened simultaneously.Described elastic ring mounting groove and corresponding elastic ring are two groups further, improve location and protected effect.
As optimization, described shower nozzle can be arranged in a shower nozzle installation cavity with sliding axially, shower nozzle installation cavity front end is provided with shower nozzle positive stop, and shower nozzle outer surface forward position is circumferentially provided with injector seals groove, is provided with injector seals circle and forms movable sealing in injector seals groove.Like this, the installation of instant on switch mechanism can be facilitated to arrange.
As optimization, instant on switch mechanism is also provided with in described main pipe, described instant on switch mechanism comprises described shower nozzle, also comprise switch spring, switch spring is arranged in the switch spring installation cavity that is communicated with liquid feeding end and switch spring rear end is connected to switch spring installation cavity rear end, switch spring front end is connected with a spherical plug and makes spherical plug front end be connected to shower nozzle rear end, and the import of described shower nozzle upper liquid outlet place fluid passage is positioned at shower nozzle side surface and can be exposed to switch spring installation cavity after compression switch spring.
During such use, only steel pipe one end to be cleaned need be propped up shower nozzle, force make shower nozzle compression switch spring backward movement the import of shower nozzle upper liquid outlet place fluid passage can be made to expose conducting, switch opens, nozzle place ejection cleaning fluid cleans, after cleaning, hand-held device retreats or the reach of hand-held steel pipe can make shower nozzle recover the import of shower nozzle upper liquid outlet place fluid passage shielding to be blocked forward under switch spring effect, and switch cuts out.Therefore switching manipulation is fast very convenient, and effectively can save cleaning fluid, avoid waste.
Described switch spring is helical spring further, and described spherical plug is fixed by socket inner in switch spring front end, and spherical plug front end is connected in the deep-slotted chip breaker of one, shower nozzle rear end coupling.This spline structure is simple, and convenience is installed and force stable transmission is reliable.
As optimization, in described main pipe, be also provided with pulsed injection mechanism; Described pulsed injection mechanism, comprise and to be formed in main pipe cylindrical injection chamber vertically, rear portion, injection chamber is provided with injection spring, the anterior slipper seal in injection chamber is equipped with piston body, front-end port place, injection chamber is provided with piston body postive stop baffle, injection cavity rear end is communicated with setting with liquid feeding end, and injection chamber can be communicated with nozzle place liquid outlet by the liquid pass hole on piston body; Piston body front end is used for mounting spray head, and injection spring is connected between injection cavity rear end and piston body.
Like this, in cleaning process, steel pipe can be fixed and extruding jet makes piston body move backward along main pipe, compression injection cavity space, obtain the effect of the instantaneous acceleration of jet, extruding can obtain the instantaneous acceleration jet of pulsed so repeatedly, drastically increases the cleaning performance to steel tube surface
As optimization, described piston body comprises and is positioned at rear end and middle part arranges the piston baffle of described liquid pass hole, also comprise front end entirety be sleeve shaped and be configured for the shower nozzle installation cavity part of mounting spray head, piston body outer surface is circumferentially provided with piston body seal groove, is provided with piston body sealing ring and forms movable sealing in piston body seal groove.Such piston body realizes the function of piston and mounting spray head simultaneously, makes its overall structure simply agile, and the piston body sealing ring of setting ensures movable sealing effect.Further piston body seal groove and corresponding piston body sealing ring be two groups to improve sealing effectiveness.
As optimization, described liquid feeding end is obtained by a feed liquor tube connector, and feed liquor tube connector front end is fixedly connected on main pipe rear end by protruding one circle flange, and feed liquor tube connector external rear face is provided with ripple struction.This spline structure is simple, and facilitates device to be fixedly connected with feed liquor flexible pipe.
In addition, during concrete enforcement, the elastic force of described switch spring is less than injection spring force, and after making its shower nozzle front end pressurized, the first forced compression of switch spring also makes the fluid passage at liquid outlet place first connect water outlet, shower nozzle continue backward pressure time injection spring again forced compression realize injection function.Like this, by the structure of piston body switch and injection mechanism combined and can independently realize separately, simple and ingenious structure and ensure that the realization of two large functions.
In sum, the present invention can realize the cleaning to steel pipe inside and outside wall simultaneously, and have cleaning performance good, cleaning efficiency is high, easy to operate and more save the advantage of cleaning fluid.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention.
Detailed description of the invention
Below in conjunction with optimum embodiment and accompanying drawing thereof, the present invention is described in further detail.
As shown in Figure 1, a kind of steel pipe inside and outside wall cleaning device, comprise main pipe 1, main pipe 1 rear end is liquid feeding end 2, main pipe 1 front end is provided with the shower nozzle 3 of coaxial inner conductor, shower nozzle 3 front end is provided with the liquid outlet that can be communicated with liquid feeding end and forms nozzle, and wherein, described liquid outlet comprises inner wall washing liquid outlet 4 and outer wall washing liquid outlet 5; Instant on switch mechanism and pulsed injection mechanism is also provided with in described main pipe 1.
Wherein, described shower nozzle 3 front center is coaxially arranged with protruding forward and smaller diameter end cone table forward, shower nozzle front end periphery position is coaxially arranged with the annular body that a circle extends to forward cone table periphery, fold between described cone table and annular body and be formed with circle confession steel pipe 6 insertion to be cleaned and the detent that can navigate on cone table, described cone table edge is perpendicular in the cross section circle of direction of axis line, and the cross section circle place plane identical with pipe diameter to be cleaned is greater than outer diameter of steel pipes to be cleaned with the annulus external diameter that detent cuts formation mutually; Described cone table front center forms inner wall washing liquid outlet 4, and described detent bottom land place forms a ring outer wall cleaning liquid outlet 5.
Like this, during use, steel pipe one end to be cleaned is inserted into detent inner position, realizes the cleaning to steel pipe inner wall by inner wall washing liquid outlet fluid, and outer wall washing liquid outlet fluid realizes the cleaning to outer wall of steel pipe simultaneously.Therefore the cleaning that not only can simultaneously realize inside and outside steel pipe, and simple and ingenious structure, facilitate cleaning behind steel pipe and shower nozzle location, improve ease-to-operate and cleaning reliability.
Wherein, described cone table outer surface is positioned at the elastic ring mounting groove that the cross section circle anterior position identical with pipe diameter to be cleaned is circumferentially provided with annular, is provided with the shock absorbing resilient circle 7 that outside protrudes from cone table surface in elastic ring mounting groove.Installation during washing steel pipes can be facilitated to locate by shock absorbing resilient circle like this, protect steel tube end part seamed edge, collision free is dampened simultaneously.Described elastic ring mounting groove and corresponding elastic ring are two groups further, improve location and protected effect.
Wherein, described shower nozzle 3 can be arranged in a shower nozzle installation cavity with sliding axially, shower nozzle installation cavity front end is provided with shower nozzle positive stop 8, and shower nozzle outer surface forward position is circumferentially provided with injector seals groove, is provided with injector seals circle 9 and forms movable sealing in injector seals groove.Like this, the installation of instant on switch mechanism can be facilitated to arrange.
Wherein, described instant on switch mechanism comprises described shower nozzle 3, also comprise switch spring 10, switch spring 10 is arranged in the switch spring installation cavity that is communicated with liquid feeding end and switch spring rear end is connected to switch spring installation cavity rear end, switch spring front end is connected with a spherical plug 11 and makes spherical plug front end be connected to shower nozzle 3 rear end, and the import 12 of described shower nozzle 3 upper liquid outlet place fluid passage is positioned at shower nozzle 3 side surface and can be exposed to switch spring installation cavity after compression switch spring 10.
During such use, only steel pipe one end to be cleaned need be propped up shower nozzle, force make shower nozzle compression switch spring backward movement the import of shower nozzle upper liquid outlet place fluid passage can be made to expose conducting, switch opens, nozzle place ejection cleaning fluid cleans, after cleaning, hand-held device retreats or the reach of hand-held steel pipe can make shower nozzle recover the import of shower nozzle upper liquid outlet place fluid passage shielding to be blocked forward under switch spring effect, and switch cuts out.Therefore switching manipulation is fast very convenient, and effectively can save cleaning fluid, avoid waste.
Wherein, described switch spring 10 is helical spring, and described spherical plug 11 is fixed by socket inner in switch spring 10 front end, and spherical plug 11 front end is connected in the deep-slotted chip breaker of one, shower nozzle 3 rear end coupling.This spline structure is simple, and convenience is installed and force stable transmission is reliable.
Wherein, described pulsed injection mechanism, comprise and to be formed in main pipe cylindrical injection chamber vertically, rear portion, injection chamber is provided with injection spring 13, the anterior slipper seal in injection chamber is equipped with piston body 14, front-end port place, injection chamber is provided with piston body postive stop baffle 15, and injection cavity rear end is communicated with setting with liquid feeding end 2, and injection chamber can be communicated with nozzle place liquid outlet by the liquid pass hole on piston body 14; Piston body 14 front end is used for mounting spray head 3, and injection spring 13 is connected between injection cavity rear end and piston body 14.
Like this, in cleaning process, steel pipe can be fixed and extruding jet makes piston body move backward along main pipe, compression injection cavity space, obtain the effect of the instantaneous acceleration of jet, extruding can obtain the instantaneous acceleration jet of pulsed so repeatedly, drastically increases the cleaning performance to steel tube surface
Wherein, described piston body 14 comprises and is positioned at rear end and middle part arranges the piston baffle 15 of described liquid pass hole, also comprise front end entirety be sleeve shaped and be configured for the shower nozzle installation cavity part of mounting spray head, piston body outer surface is circumferentially provided with piston body seal groove, is provided with piston body sealing ring 16 and forms movable sealing in piston body seal groove.Such piston body realizes the function of piston and mounting spray head simultaneously, makes its overall structure simply agile, and the piston body sealing ring of setting ensures movable sealing effect.Further piston body seal groove and corresponding piston body sealing ring be two groups to improve sealing effectiveness.
Wherein, described liquid feeding end 2 is obtained by a feed liquor tube connector, and feed liquor tube connector front end is fixedly connected on main pipe rear end by protruding one circle flange, and feed liquor tube connector external rear face is provided with ripple struction 17.This spline structure is simple, and facilitates device to be fixedly connected with feed liquor flexible pipe.
In addition, during concrete enforcement, the elastic force of described switch spring 10 is less than injection spring 13 elastic force, and after making its shower nozzle front end pressurized, the first forced compression of switch spring also makes the fluid passage at liquid outlet place first connect water outlet, shower nozzle continue backward pressure time injection spring again forced compression realize injection function.Like this, by the structure of piston body switch and injection mechanism combined and can independently realize separately, simple and ingenious structure and conveniently ensure that the independent operation of two large functions realizes.
In addition, during concrete enforcement on shower nozzle 3, the import of inner wall washing liquid outlet 4 place fluid passage is positioned at the import rear of outer wall washing liquid outlet place fluid passage, during such cleaning shower nozzle prop up steel pipe to be cleaned backward movement open in instant on switch mechanism process, first can connect inner wall washing liquid outlet 4 fluid to clean, continue to move shower nozzle connection outer wall washing liquid outlet 5 fluid backward after a period of time again and clean.Because the cleaning of outer wall of steel pipe cleaning opposed inner walls is convenient easily and can realize auxiliary cleaning further in follow-up flow process, and steel pipe inner wall cleaning relative difficulty.Therefore after employing aforesaid way, more can ensure the reasonable application of cleaning fluid, ensure that the cleaning performance of steel pipe integral.
In addition, on shower nozzle, the annular body front position surface of internal cavity of cone table outside is that entirety slopes inwardly contraction structure, the cleaning fluid sprayed can be made so herein can to wash away outer surface of steel tube better, improve the cleaning performance to outer surface of steel tube.
Therefore said apparatus can complete the cleaning of steel pipe surfaces externally and internally simultaneously, instant on switch can be realized to conserve water simultaneously, pulsed injection cleaning can be realized to improve cleaning performance, there is cleaning performance good, cleaning efficiency is high, easy to operate and more save the advantage of cleaning fluid.
Claims (7)
1. a steel pipe inside and outside wall cleaning device, comprise main pipe, main pipe rear end is liquid feeding end, main pipe front end is provided with the shower nozzle of coaxial inner conductor, shower nozzle front end is provided with the liquid outlet that can be communicated with liquid feeding end and forms nozzle, it is characterized in that, described liquid outlet comprises inner wall washing liquid outlet and outer wall washing liquid outlet; Described shower nozzle front center is coaxially arranged with protruding forward and smaller diameter end cone table forward, shower nozzle front end periphery position is coaxially arranged with the annular body that a circle extends to forward cone table periphery, fold between described cone table and annular body and be formed with circle confession steel pipe insertion to be cleaned and the detent that can navigate on cone table, described cone table edge is perpendicular in the cross section circle of direction of axis line, and the cross section circle place plane identical with pipe diameter to be cleaned is greater than outer diameter of steel pipes to be cleaned with the annulus external diameter that detent cuts formation mutually; Described cone table front center forms inner wall washing liquid outlet, and described detent bottom land place forms a ring outer wall cleaning liquid outlet; Described inner wall washing liquid outlet front end inner chamber is the outside taper type of larger diameter end.
2. steel pipe inside and outside wall cleaning device as claimed in claim 1, it is characterized in that, described cone table outer surface is positioned at the elastic ring mounting groove that the cross section circle anterior position identical with pipe diameter to be cleaned is circumferentially provided with annular, is provided with the shock absorbing resilient circle that outside protrudes from cone table surface in elastic ring mounting groove.
3. steel pipe inside and outside wall cleaning device as claimed in claim 1, it is characterized in that, described shower nozzle can be arranged in a shower nozzle installation cavity with sliding axially, shower nozzle installation cavity front end is provided with shower nozzle positive stop, shower nozzle outer surface forward position is circumferentially provided with injector seals groove, is provided with injector seals circle and forms movable sealing in injector seals groove.
4. steel pipe inside and outside wall cleaning device as claimed in claim 3, is characterized in that, be also provided with instant on switch mechanism in described main pipe; Described instant on switch mechanism comprises described shower nozzle, also comprise switch spring, switch spring is arranged in the switch spring installation cavity that is communicated with liquid feeding end and switch spring rear end is connected to switch spring installation cavity rear end, switch spring front end is connected with a spherical plug and makes spherical plug front end be connected to shower nozzle rear end, and the import of described shower nozzle upper liquid outlet place fluid passage is positioned at shower nozzle side surface and can be exposed to switch spring installation cavity after compression switch spring.
5. steel pipe inside and outside wall cleaning device as claimed in claim 1, is characterized in that, be also provided with instant on switch mechanism and pulsed injection mechanism in described main pipe; Described pulsed injection mechanism, comprise and to be formed in main pipe cylindrical injection chamber vertically, rear portion, injection chamber is provided with injection spring, the anterior slipper seal in injection chamber is equipped with piston body, front-end port place, injection chamber is provided with piston body postive stop baffle, injection cavity rear end is communicated with setting with liquid feeding end, and injection chamber can be communicated with nozzle place liquid outlet by the liquid pass hole on piston body; Piston body front end is used for mounting spray head, and injection spring is connected between injection cavity rear end and piston body.
6. steel pipe inside and outside wall cleaning device as claimed in claim 5, it is characterized in that, described piston body comprises and is positioned at rear end and middle part arranges the piston baffle of described liquid pass hole, also comprise front end entirety be sleeve shaped and be configured for the shower nozzle installation cavity part of mounting spray head, piston body outer surface is circumferentially provided with piston body seal groove, is provided with piston body sealing ring and forms movable sealing in piston body seal groove.
7. steel pipe inside and outside wall cleaning device as claimed in claim 1, it is characterized in that, described liquid feeding end is obtained by a feed liquor tube connector, and feed liquor tube connector front end is fixedly connected on main pipe rear end by protruding one circle flange, and feed liquor tube connector external rear face is provided with ripple struction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311285.5A CN104841673B (en) | 2015-06-09 | 2015-06-09 | Cleaning device for inner wall and outer wall of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311285.5A CN104841673B (en) | 2015-06-09 | 2015-06-09 | Cleaning device for inner wall and outer wall of steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104841673A true CN104841673A (en) | 2015-08-19 |
| CN104841673B CN104841673B (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311285.5A Active CN104841673B (en) | 2015-06-09 | 2015-06-09 | Cleaning device for inner wall and outer wall of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104841673B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233486A (en) * | 1995-02-24 | 1996-09-13 | Masashi Tabuchi | Water gun for cleaning heat exchanger capillary tube |
| CN202079104U (en) * | 2011-05-20 | 2011-12-21 | 张远见 | Automatic cleaning machine for inner and outer walls of steel pipe |
| CN102500586A (en) * | 2011-12-26 | 2012-06-20 | 哈尔滨工业大学 | Spring type pulse flushing device for pipelines |
| CN103990627A (en) * | 2014-04-23 | 2014-08-20 | 常德炜隆管业有限公司 | High pressure rust cleaning device and method of hydraulic pipe fittings |
| CN104084327A (en) * | 2014-07-19 | 2014-10-08 | 赵杰 | Self-cleaning water spraying head |
-
2015
- 2015-06-09 CN CN201510311285.5A patent/CN104841673B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233486A (en) * | 1995-02-24 | 1996-09-13 | Masashi Tabuchi | Water gun for cleaning heat exchanger capillary tube |
| CN202079104U (en) * | 2011-05-20 | 2011-12-21 | 张远见 | Automatic cleaning machine for inner and outer walls of steel pipe |
| CN102500586A (en) * | 2011-12-26 | 2012-06-20 | 哈尔滨工业大学 | Spring type pulse flushing device for pipelines |
| CN103990627A (en) * | 2014-04-23 | 2014-08-20 | 常德炜隆管业有限公司 | High pressure rust cleaning device and method of hydraulic pipe fittings |
| CN104084327A (en) * | 2014-07-19 | 2014-10-08 | 赵杰 | Self-cleaning water spraying head |
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| Publication number | Publication date |
|---|---|
| CN104841673B (en) | 2020-12-01 |
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Effective date of registration: 20210729 Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: Chongqing Iron and Steel (Group) Co.,Ltd. |
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