CN106764190B - A kind of combination unit for conveyance conduit with pressure installation branch pipe - Google Patents
A kind of combination unit for conveyance conduit with pressure installation branch pipe Download PDFInfo
- Publication number
- CN106764190B CN106764190B CN201611246269.3A CN201611246269A CN106764190B CN 106764190 B CN106764190 B CN 106764190B CN 201611246269 A CN201611246269 A CN 201611246269A CN 106764190 B CN106764190 B CN 106764190B
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- CN
- China
- Prior art keywords
- valve
- conveyance conduit
- branch pipe
- combination unit
- valve shaft
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- 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
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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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- 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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a kind of combination units for conveyance conduit with pressure installation branch pipe, including positioning mechanism, branch flow control mechanism and drilling processing machine structure, the positioning mechanism includes sleeve assembly, sleeve assembly is adapted with the main pipeline to aperture, and sleeve assembly is sealed and coated on supervisor's pipeline outer wall to aperture；The sleeve assembly is equipped with overhanging cartridge type interface, and one end of cartridge type interface is connected to the outer wall of main pipeline, and the other end of cartridge type interface and one end of branch flow control mechanism are tightly connected, and the other end of branch flow control mechanism is connected with drilling processing machine structure.Beneficial effects of the present invention are：The positioning of process pipeline is treated using positioning mechanism, the sealing of main pipeline is controlled using branch flow control mechanism, it is processed using drilling processing machine structure aperture, three kinds of Mechanism Combinations, the aperture of conveyance conduit with pressure can be achieved, it will not cause the material transported in main pipeline leakage, ensure that the safety of operation and the stability of transport.
Description
Technical field
The present invention relates to pipe-line equipment technical fields, and in particular to a kind of combination for conveyance conduit with pressure installation branch pipe
Device.
Background technique
Pipeline is the important tool conveyed on a large scale.After conveyance conduit comes into operation, due to production development or the increasing of user
It is more, it is often necessary to carry out main pipeline extension or new lateral is installed on main pipeline.Since many enterprises are continuous
Production conveyance conduit once runs and cannot stop, such as city tap-water conveyance conduit, long range petroleum transportation pipeline, coal gas
Pipeline etc., the installation of lateral must be carried out with part welding is mutually passed through under operation with pressure.The substance largely conveyed is inflammable
Environment or toxic explosive, easy to pollute, band press operation are easy to happen safety accident.Mostly use pipe plugging mechanical greatly at present and technique
To complete stopping transportation pressure plugging holes operation.Therefore, develop that a kind of safety, sealing, cutting efficiency is high, worker's working condition is good
And various calibers, thickness can be cut and the device of installation branch pipe can be facilitated to be very important.
Mechanical cutting method cut quality is good, precision is high, but cutting process generates amount of heat, it is necessary to be cooled down；It is general
The export license of energization arc cutting is big, needs to change electrode in cutting process, causes gas leakage, and dangerous；Plasma cut
It is high-quality, pollution-free, can isolate air using inert gas and high pressure water flow, play fire retardation, but with protection etc. from
Sub- cutting machine price is higher, and the high temperature that generates is mixed with the security performance of coal gas of air to periphery there are still hidden dangers when cutting.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of safe and reliable for delivery pipe with pressure
The combination unit of road installation branch pipe.
The technical solution adopted by the present invention is that：A kind of combination unit for conveyance conduit with pressure installation branch pipe, including it is fixed
Position mechanism, branch flow control mechanism and drilling processing machine structure, the positioning mechanism include sleeve assembly, sleeve assembly with to aperture
Main pipeline is adapted, and sleeve assembly is sealed and coated on supervisor's pipeline outer wall to aperture；The sleeve assembly is equipped with overhanging cylinder
Type interface, one end of cartridge type interface are connected to the outer wall of main pipeline, the other end of cartridge type interface and one end of branch flow control mechanism
It is tightly connected, the other end of branch flow control mechanism is connected with drilling processing machine structure.
According to the above scheme, the sleeve assembly includes upper curved cover plate and arc lower cover board, upper curved cover plate and arc lower
Cover board can be connected as a cylinder；Upper curved cover plate and arc lower cover board compress the upper and lower part of main pipeline outside wall surface respectively,
The cartridge type interface is set to upper curved cover plate.
According to the above scheme, the branch flow control mechanism includes valve flanges, valve plate and valve shaft, one end of valve flanges and cylinder
Type interface is connected, and the other end of valve flanges is connected by connector with drilling processing machine structure；The valve plate is installed in valve method
Blue inside, the outer edge surface of valve plate can be bonded with the inner wall of valve flanges completely；Valve plate is connected with valve shaft, and one end of valve shaft is pierced by
The outer wall of valve flanges.
According to the above scheme, jack compatible with valve shaft is offered on the valve plate, offers locating slot in jack；It is described
The extension end of valve shaft is adapted with the valve shaft set for being set to valve flanges outer wall, and valve shaft is put on equipped with location hole；The valve shaft up to
It is set less there are two positioning mechanism, one of positioning mechanism is adapted to locating slot, another positioning mechanism is adapted with location hole.
According to the above scheme, the positioning mechanism includes spring, sliding block, and the blind hole being opened on valve shaft, the spring
One end be fixed in blind hole, the other end of spring is connected with sliding block, sliding block can the elastic force of spring effect under it is outside along blind hole
It slides and blind hole is stretched out in part, be adapted with locating slot or location hole.
According to the above scheme, the valve shaft extension end is connected with rotational handle.
According to the above scheme, the drilling processing machine structure includes rotating outer cylinder and the water jet being connected with external equipment cutting
Head, rotates one end closure of outer cylinder, and the water jet cutter sealing is installed on the closure end face of rotation outer cylinder.
According to the above scheme, the radial direction along rotation outer cylinder closure end face offers sliding slot, and the water jet cutter can be along cunning
Slot sliding.
According to the above scheme, the tail portion of water jet cutter is equipped with cam, and the wheel face of cam is completely covered sliding slot, and with rotation
The closed end face paste of outer cylinder is closed.
According to the above scheme, the rotation outer cylinder is equipped with the extension bar of auxiliary rotation.
Beneficial effects of the present invention are：
1, the positioning that process pipeline is treated using positioning mechanism controls the sealing of main pipeline using branch flow control mechanism,
Using drilling processing machine structure aperture process, three kinds of Mechanism Combinations, it can be achieved that conveyance conduit with pressure aperture, main pipeline will not be caused
The material of interior transport is revealed, and ensure that the safety of operation and the stability of transport；
2, aperture is carried out to pipeline using water jet patterning method, high-pressure water nozzle has very strong rectification function, injection
Water flow cutting has good bandha, and cutting process is pollution-free；If the main pipeline shipped material to aperture is not drinking water, cut
Cut water flow cutting head mulling it is intracavitary be mixed to form abradant jet with abrasive material, then by spouting after " sand blasting pipe ", improve
Cutting kinetic energy；
3, the closure end face of rotating cylinder is equipped with sliding slot, and water jet can cut main pipeline along the path of setting,
The pipeline fragment of cutting can be discharged through tributary control assembly；The tail portion of water jet cutter is equipped with cam, and cunning is completely covered in cam
Slot, the water flow sprayed when water jet cutter can be made to cut will not leak；
4, positioning mechanism and branch flow control mechanism are retained on main pipeline after aperture, become one of main pipeline after aperture
Point, subsequent branch pipe(tube) is directly connected with main pipeline, improves the flexibility of branch pipe(tube) installation；
5, the configuration of the present invention is simple, safe operation, stability is good, applied widely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a specific embodiment of the invention.
Fig. 2 is the structural schematic diagram of upper curved cover plate.
Fig. 3 is the structural schematic diagram of arc lower cover board.
Fig. 4 is the structural schematic diagram of valve flanges.
Fig. 5 is the structural schematic diagram of valve shaft.
Fig. 6 is the structural schematic diagram of valve plate.
Fig. 7 is the structural schematic diagram of extension bar.
Fig. 8 is the structural schematic diagram of sliding block.
Fig. 9 is the structural schematic diagram of spring.
Figure 10 is the outside drawing of connector.
Figure 11 is the sectional view A-A of connector.
Figure 12 is the structural schematic diagram for rotating outer cylinder.
Figure 13 is the left view of Figure 12.
Figure 14 is the structural schematic diagram of water jet cutter.
Figure 15 is the connection schematic diagram of water jet cutter and rotating cylinder.
Figure 16 is the left view of Figure 15.
Figure 17 is the installation diagram of branch flow control mechanism.
Figure 18 is the cutting path schematic diagram of water jet cutter.
Wherein：1, main pipeline；2, arc lower cover board；3, upper curved cover plate；3.1, cartridge type interface；4, outer cylinder is rotated；4.1,
Sliding slot；5, extension bar；6, connector；7, valve flanges；7.1, valve shaft set；7.2, location hole；8, valve shaft；8.1, spring；8.2,
Sliding block；8.3, blind hole；8.4, end plate；9, rotational handle；10, valve plate；10.1, jack；10.2, locating slot；11, water jet is cut
Head；11.1, inlet opening.
Specific embodiment
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
A kind of combination unit for conveyance conduit with pressure installation branch pipe as shown in Figure 1, including positioning mechanism, branch flow control
Mechanism processed and drilling processing machine structure, the positioning mechanism include sleeve assembly, and sleeve assembly and 1 phase of main pipeline to aperture are suitable
Match, sleeve assembly is sealed and coated on 1 outer wall of main pipeline to aperture；The sleeve assembly is equipped with overhanging cartridge type interface 3.1,
One end of cartridge type interface 3.1 is connected to the outer wall of main pipeline 1（Cartridge type interface 3.1 is located at the tapping of main pipeline 1）, cartridge type interface
3.1 other end and one end of branch flow control mechanism are tightly connected, the other end and the drilling processing machine structure phase of branch flow control mechanism
Even.
Sleeve assembly includes upper curved cover plate 3 and arc lower cover board 2, and upper curved cover plate 3 can be connected as with arc lower cover board 2
One cylinder；Upper curved cover plate 3 compresses the upper and lower part of 1 outside wall surface of main pipeline with arc lower cover board 2 respectively, and passes through bolt
Connection；The cartridge type interface 3.1 is set to upper curved cover plate 3.
Branch flow control mechanism includes valve flanges 7, valve plate 10 and valve shaft 8, and one end of valve flanges 7 passes through bolt and cartridge type
Interface 3.1 is connected, and the other end of valve flanges 7 is connected by connector 6 with drilling processing machine structure, and connector 6 is up and down
Cylindrical structure；Valve plate 10 is installed in the inside of valve flanges 7, the inner wall that the outer edge surface of valve plate 10 can completely with valve flanges 7
Fitting（Valve plate 10 can completely enclose the inner passage of valve flanges 7）；Valve plate 10 is connected with valve shaft 8, and one end of valve shaft 8 is pierced by valve
The outer wall of door flange 7,8 extension end of valve shaft are equipped with end plate 8.4, and end plate 8.4 is connected with rotational handle 9, when stirring rotational handle 9,
Valve shaft 8 rotates and valve plate 10 is driven to overturn, and realizes opening or closing for valve flanges 7；The plate face center line of valve plate 10 can be with valve
The center line of door flange 7 is overlapped, the axis of valve shaft 8 and the central axis of valve flanges 7.Preferably, it is offered on valve plate 10
Jack 10.1 compatible with valve shaft 8, offers locating slot 10.2 in jack 10.1, locating slot 10.2 be set on valve shaft 8
Positioning mechanism is adapted.Preferably, the positioning mechanism includes spring 8.1, sliding block 8.2, and the blind hole being opened on valve shaft 8
8.3, one end of the spring 8.1 is fixed in blind hole 8.3, and the other end of spring 8.1 is connected with sliding block 8.2, and sliding block 8.2 can be
It is slid in and out under the elastic force effect of spring 8.1 along blind hole 8.3 and blind hole 8.3 is stretched out in part, be adapted with locating slot 10.2.This reality
It applies in example, the extension end of valve shaft 8 is adapted with the valve shaft set 7.1 for being set to valve flanges outer wall, and valve shaft set 7.1 is equipped with location hole
7.2；At least provided with two positioning mechanisms on the valve shaft 8, the sliding block 8.2 and locating slot 10.2 of one of positioning mechanism are suitable
Match, the sliding block 8.2 of another positioning mechanism is adapted with location hole 7.2.
In the present invention, drilling processing machine structure includes the water jet cutter 11 for rotating outer cylinder 4 and being connected with external equipment（Water
The inlet opening 11.1 of jet stream cutting head 11 is connected with external equipment）, one end closure of rotation outer cylinder 4, the water jet cutter
11 sealings are installed on the closure end face of rotation outer cylinder 4；The radial direction for being closed end face along rotation outer cylinder 4 offers sliding slot 4.1, described
Water jet cutter 11 can 4.1 sliding along the chute；The sealing performance of the combination unit, cuts in water jet when in order to guarantee cutting
The end for cutting first 11 is equipped with cam, and the wheel face of cam and the closed end face paste of rotation outer cylinder 4 are closed；The wheel face size of cam is by sliding slot
4.1 determine, guarantee that water jet cutter 11 is moved to any position in sliding slot 4.1, the wheel face of cam, which can be completely covered, to be turned
The sliding slot 4.1 of dynamic outer cylinder 4；Cam and rotation outer cylinder 4 is set to form sealing structure, it is ensured that during pipe cutting, water jet
The water flow that cutting head 11 sprays will not be revealed.The outer wall of the rotation outer cylinder 4 is connect with the inner thread of connector 6, institute
Stating screw thread is rectangular thread（It realizes sealing, prevents in cutting process water flow inside from the connection of connector 6 and rotation outer cylinder 4
Place's leakage）.Preferably, rotation outer cylinder 4 is equipped with the extension bar 5 of auxiliary rotation.
In order to guarantee the sealing performance of the combination unit, sealing rubber ring is respectively provided in the marginal portion of each component.
The present invention carries out aperture to pipeline using water jet patterning method, and water is pressurized to by this method using extremely-high tension generator
500~600MPa, then pass through the nozzle of about 0.2 mm of diameter（Namely water jet cutter 11）It projects, can produce one flow velocity and reach
The supersonic speed water flow cutting of 800~1000 m/s realizes pipe cutting.High-pressure water nozzle has very strong rectification function, injection
Water flow cutting have good bandha, cutting process is pollution-free.If the main pipeline shipped material to aperture is not drinking water,
Water flow cutting cutting head mulling it is intracavitary abradant jet is mixed to form with abrasive material, then by spouting after " sand blasting pipe "；Cause
It has been mixed into abrasive material, can increase the cutting kinetic energy of several times, the almost cleavable any substance of abrasive water-jet at this time.
The diameter of main pipeline 1 is between 500mm ~ 1400mm in the present embodiment, branch pipe diameter to be installed be 300mm ~
Between 1000mm.It is using the detailed process that the present invention carries out pipeline tapping：
1, each construction package of the combination unit is made according to the specification of the main pipeline 1 to aperture and bore size；
2, installation positioning mechanism, branch flow control mechanism and drilling processing machine structure are respectively combined, and by water pump booster and water
The tail portion of pump connection water jet cutter 11；
3, valve shaft 8 is rotated, makes the overturning of valve plate 10 to keeping water flow maximum by the spaces of valve flanges 7；
4, water jet cutter 11 is opened, makes water jet cutter 11 by shown in Figure 17 1 → 2 under the action of extension bar 5
→ 3 → 4 → 2 → 5 → 1 → 4 → 3 → 5 path is cut, and guarantees that the tube wall cut down can be suitable under the impact of water flow
It is moved in the cavity of connector 6 sharply, to take out, prevents blocking pipeline；
5, after aperture, valve plate 10 is turned off manually, removes drilling processing machine structure, retains aperture positioning mechanism and branch flow control
Mechanism processed；Subsequent branch flow pipe is connected directly between the tail portion of valve flanges 7.
Each section passes through valve flanges 7 and connects in combination unit, by the size of control valve flange 7, can satisfy
The installation requirement of different size branch pipes.The operating condition of present apparatus design reference is city tap-water conveyance conduit, the main pipe of design
The diameter in road need to install the diameter of branch pipe between 300mm to 1000mm between 500mm to 1400mm；It is conveyed in pipeline
Medium can be oil gas etc..
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of combination unit for conveyance conduit with pressure installation branch pipe, which is characterized in that including positioning mechanism, branch flow control
Mechanism and drilling processing machine structure, the positioning mechanism include sleeve assembly, and sleeve assembly is adapted with the main pipeline to aperture, set
Cartridge module is sealed and coated on supervisor's pipeline outer wall to aperture；The sleeve assembly is equipped with overhanging cartridge type interface, cartridge type interface
One end be connected to the outer wall of main pipeline, one end of the other end of cartridge type interface and branch flow control mechanism is tightly connected, branch flow control
The other end of mechanism processed is connected with drilling processing machine structure；The branch flow control mechanism includes valve flanges, valve plate and valve shaft, valve
One end of flange is connected with cartridge type interface, and the other end of valve flanges is connected by connector with drilling processing machine structure；The valve
Plate is installed in the inside of valve flanges, and the outer edge surface of valve plate can be bonded with the inner wall of valve flanges completely；Valve plate is connected with valve shaft,
One end of valve shaft is pierced by the outer wall of valve flanges.
2. the combination unit for conveyance conduit with pressure installation branch pipe as described in claim 1, which is characterized in that the sleeve
Component includes upper curved cover plate and arc lower cover board, and upper curved cover plate and arc lower cover board can be connected as a cylinder；Upper arc
Cover board and arc lower cover board compress the upper and lower part of main pipeline outside wall surface respectively, and the cartridge type interface is set to upper curved cover plate.
3. the combination unit for conveyance conduit with pressure installation branch pipe as described in claim 1, which is characterized in that the valve plate
On offer jack compatible with valve shaft, offer locating slot in jack；The extension end of the valve shaft be set to valve flanges
The valve shaft set of outer wall is adapted, and valve shaft is put on equipped with location hole；At least provided with two positioning mechanisms on the valve shaft, one of them
Positioning mechanism is adapted to locating slot, another positioning mechanism is adapted with location hole.
4. the combination unit for conveyance conduit with pressure installation branch pipe as claimed in claim 3, which is characterized in that the positioning
Mechanism includes spring, sliding block, and the blind hole being opened on valve shaft, and one end of the spring is fixed in blind hole, spring it is another
One end is connected with sliding block, and sliding block can slide in and out under the effect of the elastic force of spring along blind hole and blind hole is stretched out in part, with locating slot
Or location hole is adapted.
5. the combination unit for conveyance conduit with pressure installation branch pipe as described in claim 1, which is characterized in that the valve shaft
Extension end is connected with rotational handle.
6. the combination unit for conveyance conduit with pressure installation branch pipe as described in claim 1, which is characterized in that the aperture
Organisation of working includes the water jet cutter for rotating outer cylinder and being connected with external equipment, rotates one end closure of outer cylinder, the water
The sealing of jet stream cutting head is installed on the closure end face of rotation outer cylinder.
7. the combination unit for conveyance conduit with pressure installation branch pipe as claimed in claim 6, which is characterized in that outer along rotation
The radial direction of cylinder closure end face offers sliding slot, and the water jet cutter can slide along the chute.
8. the combination unit for conveyance conduit with pressure installation branch pipe as claimed in claim 7, which is characterized in that water jet is cut
The tail portion for cutting head is equipped with cam, and sliding slot is completely covered in the wheel face of cam, and closes with the closed end face paste of rotation outer cylinder.
9. the combination unit for conveyance conduit with pressure installation branch pipe as claimed in claim 6, which is characterized in that the rotation
Outer cylinder is equipped with the extension bar of auxiliary rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246269.3A CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246269.3A CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106764190A CN106764190A (en) | 2017-05-31 |
| CN106764190B true CN106764190B (en) | 2018-11-30 |
Family
ID=58927916
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246269.3A Expired - Fee Related CN106764190B (en) | 2016-12-29 | 2016-12-29 | A kind of combination unit for conveyance conduit with pressure installation branch pipe |
Country Status (1)
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| CN (1) | CN106764190B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101838691B1 (en) * | 2017-08-22 | 2018-03-14 | 주식회사 태명 | Multiple water supply network measuring apparatus and water supply property measurement method using the same |
| CN109424817A (en) * | 2017-08-31 | 2019-03-05 | 中国石油天然气集团公司 | Method for blocking the pipe fitting of pipeline and blocking pipeline |
| CN108506638B (en) * | 2018-03-21 | 2019-03-08 | 北京市燃气集团有限责任公司 | Receipts system and method is put in detection robot in gas pipeline |
| CN109630802A (en) * | 2018-10-31 | 2019-04-16 | 河南中拓石油工程技术股份有限公司 | A kind of sealing element and monitoring technique is sealed for pipeline branch pipe aperture after repairing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705246Y (en) * | 2004-05-01 | 2005-06-22 | 刘科 | Non stop conveyer belt opening hole blocking machine with pressure |
| CN103629470A (en) * | 2013-12-12 | 2014-03-12 | 上海海长骄机电工程有限公司 | Pipeline nonstop-transmission holing and plugging system and process method thereof |
| CN104029248A (en) * | 2014-06-11 | 2014-09-10 | 永高股份有限公司 | PE gas pipeline borer for operation under pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4834423B2 (en) * | 2006-03-03 | 2011-12-14 | 櫻護謨株式会社 | Connection fitting with safety mechanism and water supply hose |
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2016
- 2016-12-29 CN CN201611246269.3A patent/CN106764190B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705246Y (en) * | 2004-05-01 | 2005-06-22 | 刘科 | Non stop conveyer belt opening hole blocking machine with pressure |
| CN103629470A (en) * | 2013-12-12 | 2014-03-12 | 上海海长骄机电工程有限公司 | Pipeline nonstop-transmission holing and plugging system and process method thereof |
| CN104029248A (en) * | 2014-06-11 | 2014-09-10 | 永高股份有限公司 | PE gas pipeline borer for operation under pressure |
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| CN106764190A (en) | 2017-05-31 |
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