CN108240514A - The fast-assembling jointing of transmission line forest fire water for fire extinguishing band - Google Patents
The fast-assembling jointing of transmission line forest fire water for fire extinguishing band Download PDFInfo
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- CN108240514A CN108240514A CN201711466130.4A CN201711466130A CN108240514A CN 108240514 A CN108240514 A CN 108240514A CN 201711466130 A CN201711466130 A CN 201711466130A CN 108240514 A CN108240514 A CN 108240514A
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- hole
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- water band
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Classifications
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- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
A kind of fast-assembling jointing of transmission line forest fire water for fire extinguishing band, including the pin end being connected with the first water band and the female connector being connected with the second water band, pin end includes the male connector ontology for being connected to the first water strap end portion, rotatable threaded connecting sleeve is socketed on male connector ontology, threaded connecting sleeve has threaded hole, female connector includes the female ontology for being connected to the second water strap end portion, female ontology has the spiro union portion being threadedly coupled for the threaded hole with threaded connecting sleeve, female ontology has the first through hole connected with the second water band, male connector ontology has the plug division and the second through hole for connecting the first through hole and the first water band that threadingly axially bored line direction is inserted into the first through hole, it is equipped on plug division by the seal assembly of clearance seal between plug division and the first through hole.The fast-assembling jointing have many advantages, such as it is simple in structure, be easy to make, quick, secure and reliable connection easy to connect.
Description
Technical field
The present invention relates to power transmission and distribution equipment technology fields, and in particular to a kind of fast-assembling of transmission line forest fire water for fire extinguishing band
Jointing.
Background technology
Due to the influence of the fiery custom of the production and living such as burn the grass on waste land, visit a grave, a wide range of mountain fire easily occurs for power transmission line corridor,
A plurality of circuit is caused to trip simultaneously to have a power failure or even cause mains breakdown, mountain fire has become the safe operation of serious threat bulk power grid
With the hot issue of social normal power supply.
At present, China has carried out many researchs in terms of transmission line forest fire fire extinguishing, including having developed remote height
Lift movement fire extinguishing platform, is equipped with Wear-resistant, high-temperature resistant high pressure fire fighting water band, water delivery lift is up to 500 meters, water delivery apart from reachable
3000 meters, the transmission line forest fire scene for high mountains and precipitous paths, live water source scarcity provides effectively fire extinguishing equipment.However, due to
Fire hose needs bear atomization and the pressure loss transmitted at a distance, and operating pressure is up to 8MPa, fire hose wall thickness and
The number of plies of braided fabric is larger, and the fire hose weight of unit length reaches 0.3kg/m, in order to make every fire hose not because of weight
Excessive and influence field and use and carry, the length of single fire hose is usually no more than 20 meters, 3000 meters of fire-fightings of joint connection in site
During water band, the connector that need to be connected reaches 150 or more.The fire hose of transmission line forest fire fire extinguishing is presently used for using common
Nipple be attached, at the scene in application process there are attended operation is cumbersome, required time is long, monkey wrench fastening it is more
After secondary the problem of easy stripped thread.Therefore, there is an urgent need to carry out the fast connecting joint research of transmission line forest fire fire extinguishing, disappeared with reducing
The time of waterproof band connection improves the efficiency of live transmission line forest fire disposition.
At present, existing valve core connector is only applicable to the fixed condition of pipeline member, after being disposed due to transmission line forest fire
Pipeline is needed to recycle.Novel firefighting water band quick-connecting joint structure is proposed both at home and abroad, such as patent CN200720045320.4
" a kind of ultra-high pressure quick coupling assembly ", it is fast by adapter body, connector accessory body, adapter body and connector accessory body junction
Changing all has valve hole part in the cavity of positioning sleeve, adapter body and connector accessory body, the valve hole part includes spool, slow pressure
Spring base, sealing ring and clamp spring are provided with multiple pressure release through-holes, the center line of each pressure release through-hole on the spool
It is parallel with adapter body axis.Can only be connect in famale connector and sun though the product can realize that quick connection is disconnected with quick
It is operated in the case of head all no pressures, limits the use occasion of quick coupling.CN102705618B discloses one kind and exists
The quick coupling operated under high pressure conditions using pressure differential between connector, by housing, outer ring, valve seat, intermediate, fittings body and sealing
Device forms.The outer wall of the valve seat and the interior set body of valve seat sliding sleeve are slidably connected, and outer wall is equipped with positioning groove, and valve seat is axial
One end limited and connect by the baffle ring groove on hole baffle ring and valve seat sliding sleeve inner cavity, valve cage and cone are equipped among the end
The mandrel of shape valve core is slidably connected and passes through nozzle end face and limits, and spool bullet is equipped between valve cage and cone valve core
Spring, the other end of valve seat axial direction are connect by seating spring with convex shoulder inner wall on valve seat sliding sleeve inner cavity, and valve seat is equipped with fluid channel.
Above-mentioned quick coupling all has energy fast insert-pull, and one-way sealing has the function of check function, but for remote high lift
For mobile fire extinguishing platform, this quick coupling structure is complicated, high processing costs.And due to field transmission line forest fire scene water
For source scarcity it is necessary to have recycling function, one-way sealing hinders aqua recycling, and scene is inapplicable.
In conclusion existing jointing directly applies to transmission line forest fire field application, there are the following problems：
1）Transmission line forest fire extinguishing device pressure reaches more than 15MPa, and ordinary couplings bearing capacity and rapidity can not be taken into account；
2）Processing spool is installed in quick coupling in valve body, complicated, of high cost, and at the scene for needing recycling fire extinguishing aqua
It is difficult to be applicable in, causes platform that can not handle more mountain fire fire points in mountain fire period occurred frequently；
3）Plug-in type quick coupling field may be made connector easily thread off by the effect of the barriers such as stub, stone, and fire extinguishing is caused to be lost
It loses, making personnel, there are security risks, and there has been no the modes using differential pressure security connector.
Invention content
The technical problem to be solved in the present invention is to overcome the shortcomings of the prior art, provide it is a kind of it is simple in structure, be easy to
It makes, the fast-assembling jointing of quick, secure and reliable connection transmission line forest fire water for fire extinguishing band easy to connect.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of fast-assembling jointing of transmission line forest fire water for fire extinguishing band, including the pin end that is connected with the first water band and with
The female connector that two water bands are connected, the pin end include being connected to the male connector ontology of the first water strap end portion, on the male connector ontology
Rotatable threaded connecting sleeve is socketed with, the threaded connecting sleeve has threaded hole, and the female connector includes being connected to the second water
The female ontology of strap end portion, the female ontology have the spiro union portion being threadedly coupled for the threaded hole with threaded connecting sleeve, institute
Stating female ontology has the first through hole connected with the second water band, and the male connector ontology is inserted into threadingly axially bored line direction
Plug division in first through hole and the second through hole of the first through hole of connection and the first water band are installed on the plug division
Have the seal assembly of clearance seal between plug division and the first through hole.
Above-mentioned fast-assembling jointing, it is preferred that first through hole have a taper hole section, the taper hole section it is transversal
Area gradually increases along the direction far from the second water band, and the plug division has what is be in close contact with the taper hole section surrounding inner wall
Conical section, the cone angle of the conical section are less than the cone angle of taper hole section.
Above-mentioned fast-assembling jointing, it is preferred that determine with cylinder the one end of first through hole far from the second water band
Position section, the plug division have the cylinder positioning region be inserted into the cylinder positioning section and be slidably matched with cylinder positioning section.
Above-mentioned fast-assembling jointing, it is preferred that the axis of the taper hole section, the axis of the conical section and the spiral shell
The axis of pit overlaps.
Above-mentioned fast-assembling jointing, it is preferred that the seal assembly is pressed on plug division and first including two or more
The first sealing ring between through hole, the direction that more than two first sealing rings are inserted into the first through hole along plug division are spaced successively
Arrangement.
Above-mentioned fast-assembling jointing, it is preferred that each first sealing ring is corresponded on the plug division, and to be equipped with one ring-like recessed
Slot, the first sealing ring banding are set in corresponding ring groove.
Above-mentioned fast-assembling jointing, it is preferred that the male connector ontology also has the female sheet with the first perforation bore ends
The annular docking section of body docking, pressure is equipped with the second sealing ring between the annular docking section and female ontology.
Above-mentioned fast-assembling jointing, it is preferred that the male connector ontology has the first inserted link portion, and the first water band is arranged
In in the first inserted link portion, first water is equipped with the first clamp sleeve for being fixed the first water band with outer cover；The mother
Head ontology has the second inserted link portion, and the second water band is sheathed in the second inserted link portion, and the second water band outer cover is equipped with will
The second clamp sleeve that second water band is fixed.
Above-mentioned fast-assembling jointing, it is preferred that the outer surface in the first inserted link portion and the second inserted link portion is cylinder
Face.
Compared with prior art, the advantage of the invention is that：The fast-assembling of the transmission line forest fire water for fire extinguishing band of the present invention
The plug division of male connector ontology is inserted into the first through hole of female ontology in connection, is rotated further by being threadedly coupled by jointing
Set is threadedly coupled with the spiro union portion of female ontology, it is simple in structure, be easy to making, it is easy to connect quickly, stable connection can
It leans on；Also, threaded connecting sleeve is threadedly coupled with spiro union portion, when in the first water band and the second water band filled with pressure extinguishing chemical, is gone out
The pressure effect of fiery agent can make male connector ontology and female ontology form reversal interlocking relay, play increase threaded connecting sleeve and spiro union portion it
Between pulling force effect, make to be difficult to relatively rotate between threaded connecting sleeve and spiro union portion, in the wild pull fire hose when, can avoid
The barriers such as the bayonet, stone and the stub that encounter cause male connector ontology to connect the problem of loosening is even failed with female ontology；
In addition, the fast-assembling jointing does not have valve core structure, the recycling requirement of extinguishing chemical can be met, conducive to extinguishing chemical utilization rate is improved.
Description of the drawings
Fig. 1 is the broken section structure diagram of pin end.
Fig. 2 is the broken section structure diagram of female connector.
Marginal data：
1st, pin end；11st, male connector ontology；12nd, threaded connecting sleeve；121st, threaded hole；13rd, plug division；131st, conical section；132nd, circle
Column positioning region；14th, the second through hole；15th, the first inserted link portion；16th, the first clamp sleeve；2nd, female connector；21st, female ontology；22、
Spiro union portion；23rd, the first through hole；231st, taper hole section；232nd, cylinder positioning section；24th, the second inserted link portion；25th, the second clamp sleeve；
3rd, the first sealing ring；100th, the first water band；200th, the second water band.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, the fast-assembling jointing of the transmission line forest fire water for fire extinguishing band of the present embodiment, including with
The connected pin end 1 of first water band 100 and the female connector 2 being connected with the second water band 200, pin end 1 include being connected to the first water
Male connector ontology 11 with 100 ends is socketed with rotatable threaded connecting sleeve 12 on male connector ontology 11, and threaded connecting sleeve 12 has
Threaded hole 121, female connector 2 include being connected to the female ontology 21 of 200 end of the second water band, and female ontology 21, which has, to be used for and spiral shell
The spiro union portion 22 that the threaded hole 121 of line connector sleeve 12 is threadedly coupled, female ontology 21 have first connected with the second water band 200
Through hole 23, male connector ontology 11 have the plug division 13 and connect that threadingly 121 axis direction of hole is inserted into the first through hole 23
Lead to the second through hole 14 of the first through hole 23 and the first water band 100, be equipped on plug division 13 and pass through plug division 13 and first
The seal assembly of clearance seal between through-hole 23.The fast-assembling jointing of the transmission line forest fire water for fire extinguishing band connection when,
The plug division 13 of male connector ontology 11 is inserted into the first through hole 23 of female ontology 21, is rotated further by threaded connecting sleeve 12 and female
The spiro union portion 22 of ontology 21 is threadedly coupled, simple in structure, be easy to make, quick, secure and reliable connection easy to connect；And
And threaded connecting sleeve 12 is threadedly coupled with spiro union portion 22, when the first water band 100 and the second water band 200 are interior filled with pressure extinguishing chemical
When, the pressure effect of extinguishing chemical can make male connector ontology 11 and female ontology 21 form reversal interlocking relay, play increase threaded connecting sleeve
The effect of pulling force between 12 and spiro union portion 22 makes to be difficult to relatively rotate between threaded connecting sleeve 12 and spiro union portion 22, drag in the wild
When dragging fire hose, the barriers such as the bayonet, stone and stub that encounter can be avoided to cause male connector ontology 11 and female ontology 21
Connection loosens the problem of even failing；In addition, the fast-assembling jointing does not have valve core structure, the recycling that can meet extinguishing chemical will
It asks, conducive to extinguishing chemical utilization rate is improved.
In the present embodiment, the first through hole 23 has a taper hole section 231, and the cross-sectional area of taper hole section 231 is along far from second
The direction of water band 200 gradually increases, and plug division 13 has the conical section 131 being in close contact with 231 surrounding inner wall of taper hole section, taper
The cone angle of section 131 is less than the cone angle of taper hole section 231.Conical section 131 and the close contacting fit of taper hole section 231 can be formed to grafting
The effect of clearance seal, can further improve sealing effect between 13 and first through hole 23 of portion.And the cone angle of conical section 131
Less than the taper of taper hole section 231, when threaded connecting sleeve 12 is threadedly coupled with the spiro union portion 22 of female ontology 21, male connector sheet can be forced
Threadingly 121 axis direction of hole is close to each other for body 11 and female ontology 21, so as to which conical section 131 be made mutually to be squeezed with taper hole section 231
Pressure, makes conical section 131 and taper hole section 231 that can ensure leakproofness in this way, and can reduce processing with annular contact line close proximity
Assembly precision and cost of manufacture.Preferably, the cone angle of conical section 131 is 10 °, and the cone angle of taper hole section 231 is 12 °.Taper hole section 231
Axis, conical section 131 axis and threaded hole 121 axis overlap, can ensure 131 surrounding outer wall of conical section and taper hole
The uniformity of 231 surrounding inner wall contacts of section, plays and avoids deforming and conical section 131 is made to keep coaxial with taper hole section 231
Effect, conducive to improve leakproofness.
In the present embodiment, the one end of the first through hole 23 far from the second water band 200 has cylinder positioning section 232, plug division
13 have insertion cylinder positioning section 232 and the cylinder positioning region 132 being slidably matched with cylinder positioning section 232.Cylinder positioning region 132
Be inserted into cylinder positioning section 232 and form positioning action, can limit male connector ontology 11 and female ontology 21 along plugging direction slide with
Outer degree of freedom ensures the solid and reliable property that pin end 1 and female connector 2 connect.
In the present embodiment, seal assembly includes two the first sealings being pressed between 13 and first through hole 23 of plug division
Circle 3, along the direction of first through hole 23 of the insertion of plug division 13 successively arranged for interval, two first seal two the first sealing rings 3
Circle 3 forms dual-seal, and sealing effect is good, and the structure of the seal assembly is simple, at low cost.
In the present embodiment, each first sealing ring 3 is corresponded on plug division 13 and is equipped with a ring groove, the first sealing ring 3 is bound round
Fixed to be located in corresponding ring groove, ring groove forms positioning action to the first sealing ring 3, stablizes the first sealing ring 3
More reliable is connected on plug division 13, is not needed to when the first through hole 23 is inserted into plug division 13 to the first sealing ring 3 not only
Carry out operation positioning, and can ensure pin end 1 and female connector 2 connect after the first sealing ring 3 be in setting position, and then ensure
Sealing effect.
In the present embodiment, male connector ontology 11 is also right with the annular docked with the female ontology 21 of 23 end of the first through hole
Socket part, pressure is equipped with the second sealing ring, the spiral shell of threaded connecting sleeve 12 and female ontology 21 between annular docking section and female ontology 21
When socket part 22 is threadedly coupled, can forcing male connector ontology 11 and female ontology 21, threadingly 121 axis direction of hole is close to each other, and then
Annular docking section is made to compress the second sealing ring with female ontology 21, which plays the effect for further strengthening sealing.
In the present embodiment, male connector ontology 11 has the first inserted link portion 15, and the first water band 100 is sheathed on the first inserted link portion 15
On, 100 outer cover of the first water band is equipped with the first clamp sleeve 16 for being fixed the first water band 100；Female ontology 21 has
Second inserted link portion 24, the second water band 200 are sheathed in the second inserted link portion 24, and 200 outer cover of the second water band is equipped with the second water band
200 the second clamp sleeves 25 being fixed.Buckle machine can be used to withhold the first clamp sleeve 16 in the first inserted link portion 15,
And withhold the second clamp sleeve 25 in the second inserted link portion 24, so as to which the first water band 100 be made to be sealed with the first inserted link portion 15
Connection, the second water band 200 are tightly connected with the second inserted link portion 24.Buckle machine and the method for withholding are the prior art.
In the present embodiment, the outer surface in the first inserted link portion 15 and the second inserted link portion 24 is cylindrical surface, conducive to ensureing to seal
Property and service life.
In the present embodiment, the first water band 100 and the second water band 200 use existing Wear-resistant, high-temperature resistant high pressure water transport pipe.Public access
First 1 and female connector 2 using copper material, to reduce corrosiveness of the salt fire extinguishing aqua to quick coupling.The present embodiment
Fast-assembling jointing verifies that bearing capacity is up to 25Mpa, in the case where maximum output pressure is 15Mpa for existing through actual use
Field fire extinguishing more than 1000 times, leak and Joint failure phenomenon do not occur, fully meets field application demand.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.To those of ordinary skill in the art, obtained improvement and change in the case where not departing from the technology of the present invention concept thereof
It changes and also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of fast-assembling jointing of transmission line forest fire water for fire extinguishing band, including with the first water band（100）Connected public access
Head（1）With with the second water band（200）Connected female connector（2）, it is characterised in that：The pin end（1）Including being connected to first
Water band（100）The male connector ontology of end（11）, the male connector ontology（11）On be socketed with rotatable threaded connecting sleeve（12）, institute
State threaded connecting sleeve（12）With threaded hole（121）, the female connector（2）Including being connected to the second water band（200）The mother of end
Head ontology（21）, the female ontology（21）With being used for and threaded connecting sleeve（12）Threaded hole（121）The spiral shell of threaded connection
Socket part（22）, the female ontology（21）With with the second water band（200）First through hole of connection（23）, the male connector ontology
（11）With threadingly hole（121）Axis direction is inserted into the first through hole（23）In plug division（13）And the first perforation of connection
Hole（23）With the first water band（100）The second through hole（14）, the plug division（13）On be equipped with plug division（13）With
One through hole（23）Between clearance seal seal assembly.
2. fast-assembling jointing according to claim 1, it is characterised in that：First through hole（23）With a taper hole
Section（231）, the taper hole section（231）Cross-sectional area along far from the second water band（200）Direction gradually increase, the plug division
（13）With with the taper hole section（231）The conical section that surrounding inner wall is in close contact（131）, the conical section（131）Cone angle
Less than taper hole section（231）Cone angle.
3. fast-assembling jointing according to claim 2, it is characterised in that：First through hole（23）Far from the second water
Band（200）One end have cylinder positioning section（232）, the plug division（13）With the insertion cylinder positioning section（232）And
With cylinder positioning section（232）The cylinder positioning region being slidably matched（132）.
4. fast-assembling jointing according to claim 2, it is characterised in that：The taper hole section（231）Axis, the cone
Shape section（131）Axis and the threaded hole（121）Axis overlap.
5. fast-assembling jointing according to claim 1, it is characterised in that：The seal assembly includes more than two pressures and sets
In plug division（13）With the first through hole（23）Between the first sealing ring（3）, more than two first sealing rings（3）Along plug division
（13）It is inserted into the first through hole（23）Direction arranged for interval successively.
6. fast-assembling jointing according to claim 5, it is characterised in that：The plug division（13）Upper correspondence each first is close
Seal（3）It is equipped with a ring groove, first sealing ring（3）Banding is set in corresponding ring groove.
7. fast-assembling jointing according to claim 5, it is characterised in that：The male connector ontology（11）Also have and first
Through hole（23）The female ontology of end（21）The annular docking section of docking, the annular docking section and female ontology（21）Between
Pressure is equipped with the second sealing ring.
8. fast-assembling jointing according to any one of claim 1 to 7, it is characterised in that：The male connector ontology（11）
With the first inserted link portion（15）, the first water band（100）It is sheathed on the first inserted link portion（15）On, the first water band（100）
Outer cover is equipped with the first water band（100）The first clamp sleeve being fixed（16）；The female ontology（21）With second
Inserted link portion（24）, the second water band（200）It is sheathed on the second inserted link portion（24）On, the second water band（200）Outside is arranged
Have the second water band（200）The second clamp sleeve being fixed（25）.
9. fast-assembling jointing according to claim 8, it is characterised in that：The first inserted link portion（15）With the second inserted link
Portion（24）Outer surface be cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466130.4A CN108240514A (en) | 2017-12-28 | 2017-12-28 | The fast-assembling jointing of transmission line forest fire water for fire extinguishing band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466130.4A CN108240514A (en) | 2017-12-28 | 2017-12-28 | The fast-assembling jointing of transmission line forest fire water for fire extinguishing band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240514A true CN108240514A (en) | 2018-07-03 |
Family
ID=62701209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711466130.4A Pending CN108240514A (en) | 2017-12-28 | 2017-12-28 | The fast-assembling jointing of transmission line forest fire water for fire extinguishing band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240514A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382496A (en) * | 2018-12-28 | 2019-02-26 | 中信戴卡股份有限公司 | Formed punch assembly and die casting machine including the formed punch assembly |
| CN111720070A (en) * | 2019-03-20 | 2020-09-29 | 周兆弟 | Upper joint matched with lower joint of drill rod |
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| US3446245A (en) * | 1966-02-28 | 1969-05-27 | Srm Co | Threaded fluid coupling |
| CN1290831A (en) * | 1999-07-01 | 2001-04-11 | 速睦喜股份有限公司 | Pipe joint |
| CN2473439Y (en) * | 2001-04-27 | 2002-01-23 | 何国兴 | Copper-plastic composite pipe clamp sleeve joint |
| US20050073149A1 (en) * | 2003-10-02 | 2005-04-07 | Guo Wen Li | Coupler assembly for spraying devices |
| CN102080746A (en) * | 2009-11-13 | 2011-06-01 | 金昌焕 | Training aids for connecting pipes through welding |
| CN202733231U (en) * | 2012-06-08 | 2013-02-13 | 台湾优派普环保科技有限公司 | Forcing type pipe connector |
| CN204164562U (en) * | 2014-09-19 | 2015-02-18 | 慈溪市宗汉中正快速接头厂（普通合伙） | A kind of flexible quick connector |
| CN206669142U (en) * | 2017-04-19 | 2017-11-24 | 浙江富华新材料科技有限公司 | A kind of novel garden stainless steel flexible hose |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446245A (en) * | 1966-02-28 | 1969-05-27 | Srm Co | Threaded fluid coupling |
| CN1290831A (en) * | 1999-07-01 | 2001-04-11 | 速睦喜股份有限公司 | Pipe joint |
| CN2473439Y (en) * | 2001-04-27 | 2002-01-23 | 何国兴 | Copper-plastic composite pipe clamp sleeve joint |
| US20050073149A1 (en) * | 2003-10-02 | 2005-04-07 | Guo Wen Li | Coupler assembly for spraying devices |
| CN102080746A (en) * | 2009-11-13 | 2011-06-01 | 金昌焕 | Training aids for connecting pipes through welding |
| CN202733231U (en) * | 2012-06-08 | 2013-02-13 | 台湾优派普环保科技有限公司 | Forcing type pipe connector |
| CN204164562U (en) * | 2014-09-19 | 2015-02-18 | 慈溪市宗汉中正快速接头厂（普通合伙） | A kind of flexible quick connector |
| CN206669142U (en) * | 2017-04-19 | 2017-11-24 | 浙江富华新材料科技有限公司 | A kind of novel garden stainless steel flexible hose |
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| Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382496A (en) * | 2018-12-28 | 2019-02-26 | 中信戴卡股份有限公司 | Formed punch assembly and die casting machine including the formed punch assembly |
| CN109382496B (en) * | 2018-12-28 | 2024-01-23 | 中信戴卡股份有限公司 | Punch assembly and die casting machine comprising same |
| CN111720070A (en) * | 2019-03-20 | 2020-09-29 | 周兆弟 | Upper joint matched with lower joint of drill rod |
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Application publication date: 20180703 |
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| RJ01 | Rejection of invention patent application after publication |