CN105805484A - Half joint used for rush repair of PE water feed pipe - Google Patents
Half joint used for rush repair of PE water feed pipe Download PDFInfo
- Publication number
- CN105805484A CN105805484A CN201610339659.9A CN201610339659A CN105805484A CN 105805484 A CN105805484 A CN 105805484A CN 201610339659 A CN201610339659 A CN 201610339659A CN 105805484 A CN105805484 A CN 105805484A
- Authority
- CN
- China
- Prior art keywords
- half block
- block sleeve
- upper half
- lower half
- sleeve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
- F16L55/1725—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut in which the threaded pin is rigid with the hose encircling member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a half joint used for rush repair of a PE water feed pipe. The half joint comprises an upper half sleeve and a lower half sleeve which are symmetrically arranged. One side of the upper half sleeve is hinged to one side of the lower half sleeve; and other side of the upper half sleeve and the other side of the lower half sleeve are each outwards provided with a locking block, the locking blocks can be used for locking the upper half sleeve and the lower half sleeve through a bolt. The inner cylinder walls of two ends are further each provided with an annular groove, wherein the annular grooves are oppositely formed. The half joint further comprises two disconnected sealing rubber rings. One ends of the two sealing rubber rings are fixed to the end face of the other side of the upper half sleeve and are distributed to the two ends of the upper half sleeve, a through hole is formed in the other end of each of the two sealing rubber rings, and the other ends of the two sealing rubber rings can be arranged on a positioning pillar on the end face of the other side of the lower half sleeve in a penetrating manner through the through holes. The end face of the other side of the upper half sleeve is provided with a bearing and inserting hole where the positioning pillar is borne and inserted. When the half joint is not used, the diameter of a whole sealing rubber ring formed after the two ends of the sealing rings are closed is smaller than the inner diameter of a whole sleeve formed after the upper half sleeve and the lower half sleeve are closed. The half joint has the beneficial effects of being good in sealing effect and convenient to install.
Description
Technical field
The present invention relates to a kind of special purpose parts keeping in repair feed pipe, particularly relate to a kind of pipeline leakage plugging device for the repairing of PE feed pipe.
Background technology
PE (polyethylene) material due to features such as its intensity are high, corrosion-resistant, nontoxic, be widely used in feed pipe manufacture field because it will not get rusty, described in be the desirable tubing substituting common ferrum feed pipe.But, although PE feed pipe intensity is big, in use also there will be alter hole, break, sand holes seepage or even dug the problems such as hole, formation local of having no progeny, therefore on the market the rapid rush-repair joint (being alternatively referred to as pipeline leakage plugging device, pipeline leakage plugging device and pipe first-aid device) of PE feed pipe is arisen at the historic moment.Present PE feed pipe repairing pipeline leakage plugging device generally includes half round buss opposed by two and the sealing member that is disposed therein forms, by two bolted half round busses, PE feed pipe pipeline section to be rushed to repair is located in wherein, then utilizes the connection that sealing member realizes this pipeline section to seal.Wherein, arranging of sealing member is split type setting mostly, namely in two and half round busses, it is respectively arranged with Semicircular sealing gasket, two Semicircular sealing gaskets are symmetrical about semicircle sleeve axis, during installation, the sealing gasket in two and half round busses is opposed sticks together, and PE feed pipe as disclosed in China Patent No. 200520023986.0 is not cut off the water supply repairing snap joint.But there is following defect in such set-up mode: if 1. dislocation are occurring in screwing process in two and half round busses, will not be fully aligned when will make it two internal sealing gaskets are opposed to recline, and then still there will be drainage after mounting soon；2. sealing gasket is embedded in semicircle sleeve lining, all the time certain gap (namely having two contact seams) is there is when two and half round busses close up the contact position of latter two sealing gasket, and the installation that the laminating degree of sealing gasket and repairing pipeline is subject to half round buss pins down, if half round buss is installed not in place, sealing effectiveness will reduce, and then makes repairing weak effect.Certainly, pipeline leakage plugging device of the prior art also has the sealing member of integral type, its good sealing effect, but it is necessary for disconnecting water source when repairing, then amputating the pipeline that leakage occurs, then combined by two pipeline sections, the life of people can be caused certain impact by this repairing mode undoubtedly.Further, two and half round busses need to screw multiple bolt when mounted, install trouble, and repair personnel is also bad when mounted holds.
Summary of the invention
For deficiency existing in prior art, the invention provides a kind of pipeline leakage plugging device for the repairing of PE feed pipe, traditional sealing member is arranged to the integrated sealing cushion rubber disconnected by this device, and by design corresponding connected mode make O-ring seal can be close to treat repairing pipeline on, and then improve sealing effectiveness.
For achieving the above object, present invention employs following technical scheme:
A kind of pipeline leakage plugging device for the repairing of PE feed pipe, the inwall of upper half block sleeve and lower half block sleeve is provided with the clamping cambered surface that the outline with feed pipe matches, described upper half block sleeve is hinged with one end of lower half block sleeve, the other end is all extended with locking block, upper half block sleeve and lower half block sleeve lock can pass through bolt after closing block laminating, and the two is sealed, and the clamping cambered surface of upper half block sleeve and lower half block sleeve is provided with annular recess；Described pipeline leakage plugging device also includes two O-ring seals disconnected, one end of these two O-ring seals is fixed to the described opposite side end face of half block sleeve, and the two ends of the upper half block sleeve of distribution, the other end of these two O-ring seals is provided with perforation, and can pass through to be located in the locating dowel being positioned on opposite side end face described in lower half block sleeve, the described opposite side end face of described upper half block sleeve offers the socket joint hole for locating dowel socket joint；
Wherein, under pipeline leakage plugging device unused state, the two ends of each O-ring seal close up after formed diameter close up less than upper half block sleeve and lower half block sleeve after internal diameter, under pipeline leakage plugging device use state, repairing pipeline is wrapped in be fixed in the tubular formed by upper half block sleeve and lower half block sleeve bolt, two O-ring seals are sheathed on repairing pipe wall and radially micro-change occur under elastic reaction so that the remainder except end is respectively placed in the annular recess at upper half block sleeve and lower half block sleeve both ends.
Compared to prior art, the pipeline leakage plugging device for the repairing of PE feed pipe of the present invention at least has the advantages that
One, by O-ring seal being arranged to form (the both unconventional complete integral seals disconnected, also unconventional split type semitight ring), then it is connected fixing to one end of O-ring seal and upper half block sleeve, the other end and lower half block sleeve homonymy detachably wear, and the diameter after allowing O-ring seal two ends under initial condition close up less than on half block sleeve and lower half block sleeve close up after internal diameter, make this pipeline leakage plugging device in use, O-ring seal can strut under elastic reaction, and then tighten on repairing pipe wall, thus improving the sealing effectiveness of pipeline leakage plugging device of the present invention；
Two, O-ring seal is tightened after on repairing pipe wall, also O-ring seal is placed in the annular recess of upper and lower half block sleeve, to ensure that upper and lower half block sleeve coincide with repairing seal for pipe joints, then pass through the bolt tightening upper and lower half block sleeve locking block, realize the firm installation of the two, the process screw bolt can also be passed through upper and lower half block sleeve O-ring seal is applied certain pressure, and then improve sealing effectiveness；
Three, in order to make pipeline leakage plugging device be easily installed, and the above-mentioned set-up mode in conjunction with O-ring seal, the side of upper and lower half block sleeve is also carried out pivot joint by the present invention, make what when installing, decrease bolt to screw work, improve first-aid repair efficiency, accelerate emergency repair time, save water resource.
Accompanying drawing explanation
Fig. 1 is the structural representation one (when not closing up) of the pipeline leakage plugging device for the repairing of PE feed pipe of the present invention；
Fig. 2 is the structural representation two (when closing up) of the pipeline leakage plugging device for the repairing of PE feed pipe of the present invention；
Fig. 3 is the structural representation of the other end described in O-ring seal of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reaching purpose and act on clearly and be apparent to, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated:
As Figure 1-3, the invention provides a kind of pipeline leakage plugging device for the repairing of PE feed pipe, including symmetrically arranged upper half block sleeve 10 and lower half block sleeve 20, the inwall of upper half block sleeve 10 and lower half block sleeve 20 is provided with the clamping cambered surface that the outline with feed pipe matches, one end 10a of described upper half block sleeve 10 and lower half block sleeve 20, 20a is hinged, other end 10b, 20b respectively to be outside equipped with can pass through bolt 30 by the two sealed locking block 11, 21, and the both ends inner tube wall of upper half block sleeve 10 and lower half block sleeve 20 is also relatively set with annular recess 12, 22 (illustrate only the annular recess of wherein one end in Fig. 1)；Described pipeline leakage plugging device also includes: two O-ring seals 40 disconnected, one end 40a of these two O-ring seals 40 is fixed to the described opposite side end face 10b of half block sleeve 10, and the two ends of the upper half block sleeve 10 of distribution, the other end 40b of these two O-ring seals 40 is provided with perforation 41, and can be located in, by perforation 41, the locating dowel 23 being positioned on opposite side end face 20b described in lower half block sleeve 20, the described opposite side end face 10b of described upper half block sleeve 10 offers the socket joint hole 13 for locating dowel 23 socket joint；Wherein, when pipeline leakage plugging device does not use, the two ends of each O-ring seal 40 close up after formed diameter d1 close up less than upper half block sleeve 10 and lower half block sleeve 20 after internal diameter d2, when pipeline leakage plugging device uses, repairing pipeline is wrapped in by upper half block sleeve 10 and the fixing tubular formed of lower half block sleeve 20 bolt 30, two O-ring seals 40 are sheathed on repairing pipe wall and radially micro-change occur under elastic reaction so that the remainder except end is respectively placed in the annular recess 12,22 at upper half block sleeve 10 and lower half block sleeve 20 both ends.
From such scheme, pipeline leakage plugging device of the present invention improves sealing mainly by the structure and set-up mode improving O-ring seal 40, it is embodied in: 1. O-ring seal 40 is off, one end 40a fixes with upper half block sleeve 10, one end 40a and lower half block sleeve 20 detachably wear, easy for installation easily-controllable, and after upper and lower half block sleeve 20 closes up, only have a contact gap, a contact gap is decreased, as long as this gap is negligible when upper and lower half block sleeve 20 secure and reliable connection relative to conventional art；2. O-ring seal 40 two ends under initial condition close up after diameter d1 less than on half block sleeve 10 and lower half block sleeve 20 close up after internal diameter d2, therefore when pipeline leakage plugging device uses, upper half block sleeve 10 and lower half block sleeve 20 close up after internal diameter d2 with repairing pipeline external diameter match (installation could be consolidated), O-ring seal 40 then can strut under elastic reaction, and then tighten on repairing pipe wall, thus improving sealing effectiveness；3. O-ring seal 40 tightens rear on repairing pipe wall (after there is radially micro-change), also O-ring seal 40 is placed in the annular recess 12,22 of upper and lower half block sleeve 20, to ensure that upper and lower half block sleeve 20 coincide with repairing seal for pipe joints, then pass through the bolt 30 tightening upper and lower half block sleeve 20 locking block 11,21, realize the firm installation of the two, the process screwing bolt 30 can also be passed through upper and lower half block sleeve 20 O-ring seal 40 is applied certain pressure, and then improve sealing effectiveness.
The technical scheme being more highly preferred to as the present invention is, with reference to Fig. 1, the outer tube wall of described upper half block sleeve 10 has lobe 14, and the both sides of described lobe 14 are arranged to inclined plane, have turning 15 between the outer tube wall of described inclined plane and upper half block sleeve 10.Or, the outer tube wall of described lower half block sleeve 20 has lobe, the both sides of described lobe are arranged to inclined plane, have turning between the outer tube wall of described inclined plane and lower half block sleeve 20.Again or, the outer tube wall of described upper half block sleeve 10 and lower half block sleeve 20 is respectively provided with lobe, the both sides of described lobe are arranged to inclined plane, have turning between described inclined plane and place outer tube wall.Here, the present invention, by such setting, can facilitate repair personnel's holding this pipeline leakage plugging device, to accelerate installation effectiveness.
The technical scheme being more highly preferred to as the present invention is, the both ends inner tube wall of described upper half block sleeve 10 and lower half block sleeve 20 is additionally provided with anti-slip veins (not shown) in the outside of annular recess 12,22.The present invention is possible to prevent pipeline leakage plugging device to offset on repairing pipeline by the design of this anti-slip veins, and then affects the repairing effect of pipeline leakage plugging device.
Mentioned above, the other end 40b of described O-ring seal 40 offers perforation 41, and in use, this perforation 41 probably changes, the present invention is designed so as to prevent this perforation 41 from changing, with reference to Fig. 3, the described other end 40b of said two O-ring seal 40 by 42 sandwicheds of double layer of metal tabletting, and on double layer of metal tabletting 42, it is reserved with the opening 42a spilt for perforation 41.The sandwiched of metal sheeting 42, it is possible to make not sandwiched part freely occur stretch or shorten deformation, and the deformation in hole will not occur sandwiched part (parts at 41 places of namely boring a hole), thus ensureing the repairing effect of pipeline leakage plugging device of the present invention.
The using method of the pipeline leakage plugging device for the repairing of PE feed pipe of the present invention:
1., after repair personnel determines repairing pipeline section, repairing pipeline section is lifted；
2. upper half block sleeve 10 is fastened on repairing pipeline the first half together with the upper semisection of O-ring seal 40, the upper semisection now allowing O-ring seal 40 is placed in the annular recess 12,22 of half block sleeve 10, if it occur that dislocation need to carry out adjusting (because the other end 40b of O-ring seal 40 is loosening, therefore can adjust flexibly until being positioned in annular recess 12,22) in time；
3. lower half block sleeve 20 is lifted, lower semisection together with O-ring seal 40 is fastened on the latter half rushing to repair pipeline, the lower semisection now allowing O-ring seal 40 is placed in the annular recess 12,22 of lower half block sleeve 20, if it occur that dislocation also can adjust in time, being located in locating dowel 23 by O-ring seal 40 after adjusting, now O-ring seal 40 has been in radially deformed state and has been close on repairing pipeline；
4. O-ring seal 40 adjusts after installation puts in place, is inserted in the socket joint hole 13 of upper half block sleeve 10 by the locating dowel 23 of lower half block sleeve 20, it is achieved preliminary fixing and the location of upper and lower half block sleeve 20；
5. fastening bolt 30 is tightened on the locking block 11,21 of upper and lower half block sleeve 20, makes upper and lower half block sleeve 20 realize on repairing pipeline final fixing, and then rush to repair completely.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (5)
1. the pipeline leakage plugging device for the repairing of PE feed pipe, including symmetrically arranged upper half block sleeve and lower half block sleeve, it is characterized in that, the inwall of upper half block sleeve and lower half block sleeve is provided with the clamping cambered surface that the outline with feed pipe matches, described upper half block sleeve is hinged with one end of lower half block sleeve, the other end is all extended with locking block, upper half block sleeve and lower half block sleeve lock can pass through bolt after closing block laminating, and the two is sealed, and the clamping cambered surface of upper half block sleeve and lower half block sleeve is provided with annular recess；
Also include two O-ring seals disconnected,
One end of these two O-ring seals is fixed to the described opposite side end face of half block sleeve, and the two ends of the upper half block sleeve of distribution, the other end of these two O-ring seals is provided with perforation, and can pass through to be located in the locating dowel being positioned on opposite side end face described in lower half block sleeve, the described opposite side end face of described upper half block sleeve offers the socket joint hole for locating dowel socket joint；
Wherein, under pipeline leakage plugging device unused state, the two ends of O-ring seal close up after formed diameter close up less than upper half block sleeve and lower half block sleeve after internal diameter, under pipeline leakage plugging device use state, repairing pipeline is wrapped in be fixed in the tubular formed by upper half block sleeve and lower half block sleeve bolt, two O-ring seals are sheathed on repairing pipe wall and radially micro-change occur under elastic reaction so that the remainder except end is respectively placed in the annular recess at upper half block sleeve and lower half block sleeve both ends.
2. the pipeline leakage plugging device for the repairing of PE feed pipe as claimed in claim 1, it is characterized in that, having lobe on the outer tube wall of described upper half block sleeve, the both sides of described lobe are arranged to inclined plane, have turning between the outer tube wall of described inclined plane and upper half block sleeve.
3. the pipeline leakage plugging device for the repairing of PE feed pipe as claimed in claim 1 or 2, it is characterized in that, having lobe on the outer tube wall of described lower half block sleeve, the both sides of described lobe are arranged to inclined plane, have turning between the outer tube wall of described inclined plane and lower half block sleeve.
4. the pipeline leakage plugging device for the repairing of PE feed pipe as claimed in claim 3, it is characterised in that the both ends inner tube wall of described upper half block sleeve and lower half block sleeve is additionally provided with anti-slip veins in the outside of annular recess.
5. the pipeline leakage plugging device for the repairing of PE feed pipe as claimed in claim 4, it is characterised in that the described other end of said two O-ring seal is by double layer of metal tabletting institute sandwiched, and is reserved with the opening spilt for perforation on double layer of metal tabletting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339659.9A CN105805484A (en) | 2016-05-20 | 2016-05-20 | Half joint used for rush repair of PE water feed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339659.9A CN105805484A (en) | 2016-05-20 | 2016-05-20 | Half joint used for rush repair of PE water feed pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105805484A true CN105805484A (en) | 2016-07-27 |
Family
ID=56451601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339659.9A Pending CN105805484A (en) | 2016-05-20 | 2016-05-20 | Half joint used for rush repair of PE water feed pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805484A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223599A (en) * | 2016-08-23 | 2016-12-14 | 天长市华利机械实业有限公司 | A kind of two-way anti-skidding ring buckle of the limiting alarm formula for scaffold |
| CN106245902A (en) * | 2016-08-23 | 2016-12-21 | 天长市华利机械实业有限公司 | A kind of Bidirectional self-locking type ring buckle for scaffold |
| CN106437135A (en) * | 2016-08-23 | 2017-02-22 | 天长市华利机械实业有限公司 | Self-locking type ring-shaped buckle for scaffold |
| CN106437134A (en) * | 2016-08-23 | 2017-02-22 | 天长市华利机械实业有限公司 | Pretightening type antislip ring-shaped buckle for scaffold |
| CN109611645A (en) * | 2018-11-21 | 2019-04-12 | 彭美江 | A kind of salt chemical engineering equipment pipeline of anticorrosive crack resistence |
| CN111578036A (en) * | 2020-06-18 | 2020-08-25 | 应急管理部上海消防研究所 | Sleeve type leakage stoppage tool with variable pipe diameter and using method thereof |
| CN112728284A (en) * | 2020-12-25 | 2021-04-30 | 安徽砼宇特构科技有限公司 | Overhaul with stagnant water structure that has water-swelling glue |
| CN109667933B (en) * | 2019-01-02 | 2024-06-07 | 江苏核电有限公司 | Axial sealing device and sealing method for hydraulic mechanical equipment |
-
2016
- 2016-05-20 CN CN201610339659.9A patent/CN105805484A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223599A (en) * | 2016-08-23 | 2016-12-14 | 天长市华利机械实业有限公司 | A kind of two-way anti-skidding ring buckle of the limiting alarm formula for scaffold |
| CN106245902A (en) * | 2016-08-23 | 2016-12-21 | 天长市华利机械实业有限公司 | A kind of Bidirectional self-locking type ring buckle for scaffold |
| CN106437135A (en) * | 2016-08-23 | 2017-02-22 | 天长市华利机械实业有限公司 | Self-locking type ring-shaped buckle for scaffold |
| CN106437134A (en) * | 2016-08-23 | 2017-02-22 | 天长市华利机械实业有限公司 | Pretightening type antislip ring-shaped buckle for scaffold |
| CN106245902B (en) * | 2016-08-23 | 2019-04-16 | 天长市华利机械实业有限公司 | A kind of Bidirectional self-locking type ring buckle for scaffold |
| CN106437135B (en) * | 2016-08-23 | 2019-04-16 | 天长市华利机械实业有限公司 | A kind of self-locking type annular button for scaffold |
| CN106437134B (en) * | 2016-08-23 | 2019-04-19 | 天长市华利机械实业有限公司 | A kind of anti-skidding ring buckle of prefastening for scaffold |
| CN106223599B (en) * | 2016-08-23 | 2019-07-02 | 天长市华利机械实业有限公司 | A kind of two-way anti-skidding ring buckle of limiting alarm formula for scaffold |
| CN109611645A (en) * | 2018-11-21 | 2019-04-12 | 彭美江 | A kind of salt chemical engineering equipment pipeline of anticorrosive crack resistence |
| CN109667933B (en) * | 2019-01-02 | 2024-06-07 | 江苏核电有限公司 | Axial sealing device and sealing method for hydraulic mechanical equipment |
| CN111578036A (en) * | 2020-06-18 | 2020-08-25 | 应急管理部上海消防研究所 | Sleeve type leakage stoppage tool with variable pipe diameter and using method thereof |
| CN112728284A (en) * | 2020-12-25 | 2021-04-30 | 安徽砼宇特构科技有限公司 | Overhaul with stagnant water structure that has water-swelling glue |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105805484A (en) | Half joint used for rush repair of PE water feed pipe | |
| CN201351789Y (en) | Sealing plug capable of expanding at pipe opening | |
| KR100989990B1 (en) | Detachable packing for a joint of pipeline supply to press the joint securely by forming inclined surface on one side of the packing | |
| CN205298948U (en) | PE feed pipe is rushed to repair and is used ha fujie | |
| CN101776194B (en) | Oil and gas pipeline repairing clamp and use method thereof | |
| CN207687566U (en) | Pipe pressurized blocking clamper | |
| CN206943638U (en) | A kind of nitrogen injection device for oil-gas pipeline fire operation | |
| CN207814707U (en) | GIS flange seal components | |
| CN107270016A (en) | Self-sealing rotary compensator | |
| CN213869804U (en) | Quick-dismounting connecting thermal recovery casing head and thermal recovery wellhead device thereof | |
| CN210263294U (en) | Sewer for municipal administration | |
| CN201818959U (en) | Pipeline rapid repairing device | |
| CN207568535U (en) | Polish rod sealer device for sealing polish rod and packing | |
| CN105352672A (en) | Air tightness detection clamp | |
| CN220488571U (en) | Leak-proof connector for PE pipe butt joint | |
| CN209892936U (en) | Novel special fixture for rush repair of non-metal pressure-bearing pipe | |
| JPH10227380A (en) | Flanged pipe joint | |
| CN108223959B (en) | Under-pressure plugging device and plugging method for root valve | |
| CN219622711U (en) | Prestressed grouting pipe adapting to high-pressure grouting water shutoff process requirements | |
| CN220102488U (en) | Pipeline clamp for pressure plugging overhaul of boiler | |
| CN108050324A (en) | GIS flange seal components | |
| KR20020084534A (en) | a flange coupling tube | |
| CN201021742Y (en) | Middle and small diameter pressure pipe connector | |
| CN2328845Y (en) | Pipe fitting for water central heating | |
| CN206280022U (en) | A kind of wellhead connection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |