CN1121568A - Electric molting adhesing connector - Google Patents
Electric molting adhesing connector Download PDFInfo
- Publication number
- CN1121568A CN1121568A CN95117635A CN95117635A CN1121568A CN 1121568 A CN1121568 A CN 1121568A CN 95117635 A CN95117635 A CN 95117635A CN 95117635 A CN95117635 A CN 95117635A CN 1121568 A CN1121568 A CN 1121568A
- Authority
- CN
- China
- Prior art keywords
- adhesing
- molting
- electric
- connector
- connected element
- 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.)
- Granted
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Valve Housings (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
A flange column head 11 of a valve forms a ladder-shaped connecting cylinder 12. The external end surface of the connecting cylinder 12 forms a coattail ditch 13 and the internal end surface thereof forms a coattail ditch 14. On the one hand, a joint part 16 which is made of synthetic resin and internally hidden with a heating body 18 is integrated into a whole with a connecting part 11 by an insertion forming type. The periphery of the joint part 16 is matched with a metal ring 29 with increased temperature; after the metal ring 29 is cooled, the resin of the joint part 16 is tightened. The invention can provide a connecting device which can obviously improve strength and sealing performance and does not generate clearance on the bonding surface between the metric connecting part with large diameter and the joint part made of synthetic resin.
Description
The present invention relates to the electric molting adhesing piecing devices that metallic connected element and plastic electric molting adhesing joint with valve, joint class are configured as one.
Generally establish in water supply, heat supply water, air-conditioning and gas piping and use metallic conduit, but these metallic conduits are owing to reasons such as rust, corrosion take place to pollute or seepage easily, product use pitch tubes such as polyethylene pipe recently as an alternative.
Connecting means as this pitch tube etc., for example have the surface of contact between pitch tube and joint by the bonding method of tackiness agent, in the electric molting adhesing joint that the resin joint that is had heater by inside forms, insert pitch tube, make this heater heating power, make the bonding method of the melt bonded electrofuse in the pipe and the interior outside of joint (spy opens flat 5-No. 87286 communiques).
The method of above-mentioned use tackiness agent, owing to be difficult to be applicable to the connection of difficult fusible pitch tubes such as polyethylene pipe, so usually electrofuse adhesive bonding method that adopts more.
Though preferred electrofuse adhesive bonding method such as such pitch tube when connecting metallic conduit and pitch tube, under the situation of the nominal diameter of joint class smaller (below the 25A), can be configured as one by inserting with metallic joint and electrical fused joint.
But, in recent years big (more than the 50A) joint generic request of nominal diameter is increased, the connecting means of this large diameter metallic conduit and pitch tube, for example as from metallic conduits such as cast irons to the nominal diameter of pitch tube branch means such as polyethylene pipe big valve or joint class, because following reason does not still propose at present.
Its former because, if valves etc. are for major diameter then the amount of the synthetic resin of inject because of insert being shaped increases so contour projector increase, its result, joining portion A as shown in figure 16
1And A
2Produce W as shown in figure 17
1And W
2The gap is the reason that produces seepage, therefore is not implemented on particularly valve type at present as yet.
In addition, Figure 16 and Figure 17 shows that the metallic column cap that constitutes metallic valve (more than the nominal diameter 50A) body, wherein, 2 for electrofuse adhint, 2a be that resin connector portions, 2b are that melt bonded portion, the 2d of built-in heater 2c is the connecting pipe that is connected for control device.
In view of above actual conditions, for connecting large diameter metal tube and pitch tube, the expectation exploitation is a kind of can be simply and connect the connecting means of valve or joint class really.
The inventor is in view of the insertion of the ever-larger diameters resin shrinkage after being shaped, for solving because problems such as the remarkable reduction of the adhesion property between both stick portions that bending or perk cause have been carried out deep research.The object of the present invention is to provide a kind of electric molting adhesing connector, this device can reach seal good and economical and make between metallic conduit and pitch tube or pitch tube by simple method by large diameter metallic valve or metallic joint and electrofuse adhint are configured as one really.
For achieving the above object, the present invention forms stair-stepping connecting cylinder portion on the metallic connected element of valve, joint class, on the exterior edge face of this connecting cylinder portion and interior edge face, form dovetail ditch or wedge-like portion, simultaneously will in keep heater plastic electric molting adhesing joint component constitute one with above-mentioned connected element by inserting shaping.At this moment, on the outer circumferential face of above-mentioned connecting cylinder portion, form in the continuous jog, serrations, cycloid portion (roulette), a plurality of hollow, in addition, also can be with these appropriate combination, or on the protuberance of jog, implement cycloid.
In addition, the stair-stepping connecting cylinder of formation portion on the metallic connected element of valve, joint class, forming the degree of depth on the interior edge face of this connecting cylinder portion is that H, length are the taper ditch of L, simultaneously will in keep heater plastic electric molting adhesing joint component constitute one with above-mentioned connected element by inserting shaping, insert shaping in packing the outer end portion of the connection side of this joint component into the taper ditch above-mentioned.At this moment, if installing O shape ring at least one side of the inside corner portion of the corner part of above-mentioned taper ditch and interior edge face, it is then better then joint component and connected element to be configured as one, preferably on the end face part of above-mentioned taper ditch side, install thin plate, then joint component and connected element are configured as one.
In addition, the stair-stepping connecting cylinder of formation portion on the metallic connected element of valve, joint class, interior plastic electric molting adhesing joint component that keeps heater and above-mentioned connected element are constituted one by inserting to be shaped, be embedded in complexed metal ring on the outer circumferential face of the joint component in the above-mentioned connecting cylinder portion simultaneously outside.At this moment, become concavo-convexly as the peripheral shape of the metal ring on the outer circumferential face that will be engaged in joint component earlier, and then the joint component of tying tight is then better, and preferably the outer circumferential face across the outer circumferential face of joint component and the connected element that is adjacent cooperates above-mentioned metal ring.In addition, on the end of the connected element side of above-mentioned metal ring, form rib, this rib is fixed on the periphery ditch of connected element, on the exterior edge face of the connecting cylinder portion of metallic connected element and interior edge face, form dovetail ditch, wedge shape ditch or taper ditch, or on the outer circumferential face of connecting cylinder portion, form continuous jog, in the serrations, cycloid portion, a plurality of hollow one; Perhaps with these appropriate combination, or on the protuberance of jog, implement cycloid.
The present invention, by constituting as mentioned above, if when being shaped, add resin, then can be by in the connecting cylinder portion of metallic connected element, dovetail ditch or wedge-like portion being set, resin contraction axially when preventing to cool off, and can prevent to produce gap between the mating face, can improve intensity and sealing simultaneously.
Other invention is also by constituting as mentioned above, if when being shaped the back cooling, in the taper ditch, add resin, then because the contraction of resin is more on the direction of footpath, so metal connecting cylinder portion one side becomes deflated state, on the one hand,, because shrinking on opposite mutually direction with resin side, metal side presses at length direction so on the conical surface of taper ditch, produce very strong face, intensity and sealing all can improve, and do not produce the gap between the mating face.
At this moment,, on the interior distolateral end face part of taper ditch one side, install thin plate, then can further improve sealing as installing O type ring on the corner part of the corner part of taper ditch and interior edge face.
In addition, other invention is also by constituting as mentioned above, after the shaping immediately or be shaped to be over and enlarged the metal ring of diameter after the back cooperates because of elevated temperature the joint component because cooling back metal ring is tied tight is so intensity increases and do not produce gap between the mating face.
At this moment, if the periphery of metal ring is made concavo-convex, then the metal ring joint component of tying tight more can further improve sealing.
In addition, if on the periphery ditch of connected element the rib of fixing metal ring, then the contraction by resin side and with joint component to the tension of connected element side, thereby can further improve intensity and sealing.Below [embodiment], each embodiment of the electric molting adhesing connector among the present invention is described.
Fig. 1 and Fig. 2 are expression embodiment's 1 part sectional arrangement drawing, in Fig. 1 and Fig. 2,11 can be all or part of connected element of the bigbore valve made by cast iron or other metallic material, joint class etc., be the column cap that has flange that constitutes ball valve (160A) body of malleable cast iron system in this example, this column cap 11 has the stream 11a of big nominal diameter.Though this ball valve is diagram not, it is to be designed to rotate freely the valve that makes stream open and close by the ball that will have through hole in body interior.
On this connected element 11, form stair-stepping connecting cylinder portion 12, on the exterior edge face of this connecting cylinder portion 12 and interior edge face, form dovetail ditch 13,14 as shown in Figure 1 respectively.
As these dovetail ditch 13 sides are tried one's best near internal diameter, near external diameter, then the contraction of resin becomes littler to dovetail ditch 14 sides as far as possible.
In addition, on the outer circumferential face of connecting cylinder portion 12, form continuous serrations 15, to improve the adherence of resin, except that forming serrations 15, also can adopt of forming in the jog, cycloid portion, hollow or with these appropriate combination, or on the surface of the protuberance of jog, execute the wheel line.These serrations etc. can prevent connected element 11 and the rotation of joint component 16 on the twisting direction.
In addition, 16 is to be built-in with under the state of connected element 11 in the unshowned in the drawings metal mold among the figure, injects the thermoplastic resin of bridging properties such as cross-linked type polyethylene, cross-linked type polypropylene in metal mold, by inserting the joint component that the back that is shaped forms.On the inner peripheral surface of this joint component 16, be provided with melt bonded 17, this melt bonded 17 thermoplastic resin that utilizes polyethylene, polypropylene, polybutylene, PVC non-crosslinked forms, and constitutes by the resistance heater wire of burying underground melt bonded 17 inside to the nickel wire that prevents short circuit, nichrome wire etc. 18 (heater).
This resistance heater wire 18 makes it heating power from not shown power supply or controller and connector 19 by connecting line 20, makes after melt bonded 17 outer circumferential face fusion with the insertion portion of pitch tube (not shown) bonding by heating.
Above-mentioned plastic electric molting adhesing joint component 16 can use common adopted material, also can contain or utilize the structure of any one electrofuse adhint.
In addition, apply high frequency magnetic field to heater, can make its heating by inducing heating from the outside of joint component.
Fig. 2 represents other examples of dovetail ditch 13,14, forms wedge-like portion 21 on the outer end of connecting cylinder portion 12, and also form wedge-like portion 22 on inner end, contraction that can resistance resin, and other formation is identical with Fig. 1, brings into play same action effect.
In Fig. 1 and Fig. 2, because on the exterior edge face of connecting cylinder portion 12 and interior edge face, dovetail ditch 13,14 or wedge-shaped part 21,22 are set, so after when being shaped, in metal mold, adding synthetic resin, can prevent to cool off the axial contraction of time delay, prevent the generation in gap as shown in figure 17, can improve intensity and sealing simultaneously.
Secondly, Fig. 3-Fig. 6 is expression embodiment's 2 part sectional arrangement drawing, in Fig. 3, the stair-stepping connecting cylinder of formation portion 12 on the metallic connected element 11 of valve, joint class, forming the degree of depth on the interior edge face of this connecting cylinder portion 12 is that H, length are the taper ditch 23 of L, inserting when being shaped, resin enters in this taper ditch 23 on the outer end of the connection side of joint component 16 and forms wide diameter portion 24, forms conical surface 25 on the surface of contact of this taper ditch 23 and wide diameter portion 24.
In Fig. 3, because form the degree of depth on the interior edge face that is arranged on the connecting cylinder portion 12 on the connected element 11 is H, the long taper ditch 23 that fills for L, during shaping to wherein adding resin, if back cooling so be shaped, then the resin shrinkage on the direction of footpath is more, so become the state of the outer circumferential face of the connecting cylinder portion 12 that ties tight.In addition, in the longitudinal direction, because connected element (metal side) 11 shrinks mutually in the opposite direction with joint component (resin side) 16, therefore conical surface 25 produces very strong face pressure, intensity and sealing all increase, and because do not produce the gap, so the value of commodity has also improved.
In addition, sealing for the anastomosis part of improving both, as Fig. 4, shown in Figure 5, if at least one side of the inside corner portion of the corner part of taper ditch 23 and interior edge face, add the O type ring of making by soft material 26,27, be shaped then, bulged-in resin is compressed O type ring 26,27 during then by shaping, cooling back resin shrinkage, then O shape ring 26,27 restores, thus the gap has not had to have improved sealing.
In addition, as shown in Figure 6, also can on the end face portion of taper ditch 23 sides, install thin slice 28, also can improve sealing in this case.
As above, with respect to the shrinkage direction of metal side and resin side, also can improve sealing by the ditch that suitably is configured such that the powerful combination of its bonding plane.In addition, above-mentioned each example describes with metallic material, but other materials is suitable for too.
In addition, the suitable period after shaping, by with the A portion of Fig. 3 with extruding to the inside such as rollers, the face of conical surface 25 is pressed become stronger.
Other of Fig. 3, Fig. 4 constitute, the action effect that performance same as in figure 1 is identical.
Fig. 7-Figure 15 is expression embodiment's 3 part sectional arrangement drawing.
In Fig. 7, after insert being shaped immediately or the suitable period after shaping is over, metal ring after the elevated temperature hole enlargement 29 is engaged in outer being embedded on the outer circumferential face of the joint component 16 in the connecting cylinder portion 12, after metal ring 29 coolings, the resin of tying tight is promptly to install (with reference to Fig. 8) under the state that produces hoop tension on the metal ring 29.Thus, intensity increases, and can obtain not producing the connection set in gap in the anastomosis part of the two.
In addition, as shown in figure 10, the periphery that is engaged in the metal ring 29 on the outer circumferential face of joint component 16 is made concavo-convex, formed concavo-convex position 30.
As shown in Figure 9, chimeric immediately metal ring 29 of phase in due course after the shaping, then as shown in figure 11 with part type 31 or full week with advancing the type resin of tying tight.
In addition, as shown in figure 12, the metal ring 29 of the back elevated temperature that the is shaped outer circumferential face across the outer circumferential face of joint component 16 and the connected element 11 that is adjacent is cooperated, after metal ring 29 coolings,, can improve intensity and sealing because become as shown in figure 13 state.
In addition, end in connected element 11 sides of metal ring 29 forms rib 32, as this rib 32 being fixed on the periphery ditch 33 of connected element 11, after metal ring 29 coolings that then are shaped the back elevated temperature and cooperate, metal ring 29 is little than the contraction of connected element 11 in the contraction of connected element 11 1 sides, because the resin of joint component 16 1 sides can shrink, so, become the state of Figure 15 while the resin metallic ring of tying tight shrinks.
At this moment, metal ring 29 is strained resin, so the intensity of can further improve and sealing because rib 32 is fixed on periphery ditch 33 places to metal connected element 11 sides.
In addition, it is identical that other formation and Fig. 1 constitute, and brings into play identical effect.
Embodiment 2 and embodiment 3, though it is not shown in the drawings, but also can will be arranged on dovetail ditch 13,14 among the embodiment 1 and wedge-shaped part 21,22 or serrations, jog, cycloid portion, hollow appropriate combination in addition, can certainly on the exterior edge face of the connecting cylinder portion 12 of metallic connected element and interior edge face, implement the combination in any of wedge shape ditch, taper ditch etc.
In addition, the connecting cylinder portion of connected element also can insert the formation that is shaped by the inside of imbedding connected element.
In addition, above-mentioned each example, the example of the collar head column cap that is applicable to ball valve has been described, be defined in these but have more than, also applicable to other valves or parts wherein such as fly valve, gate valve, ball valve, one-way valve, cocks, in addition, not only be applicable to Twoway valves,, but also can be applicable to other connected elements outside the joint also applicable to three-way valve.
From above narration as can be known, has following effect according to the present invention.
A kind of connection set can be provided, this connection set is when connecting metal connected element and plastic joint component, even the two diameter is very big, on the mating face, can not produce the gap yet, can firmly connect, and intensity and sealing are significantly improved, in addition, because it is can cheaply produce in batches, also fine at economic aspect.
In addition, on metallic valve that makes branch between metallic conduit and pitch tube or the pitch tube or metallic joint, be connected the electric molting adhesing joint because can be simply, even, have the effect of certain joint so under the bigger situation of nominal diameter, also can successfully implement engagement means.
The accompanying drawing simple declaration
Fig. 1 is expressed as the embodiment's 1 of electric molting adhesing connector among the present invention part sectional arrangement drawing.
Fig. 2 is the part sectional arrangement drawing of other examples of presentation graphs 1.
Fig. 3 is the part sectional arrangement drawing of the embodiment 2 of electrofuse bonder among expression the present invention.
Fig. 4 is that a portion of other examples of presentation graphs 3 enlarges detail drawing.
Fig. 5 is that a portion of other examples of presentation graphs 3 enlarges detail drawing.
Fig. 6 is that a portion of other examples of presentation graphs 3 enlarges detail drawing.
Fig. 7 is the part sectional arrangement drawing of the embodiment 3 of electrofuse bonder among expression the present invention.
Fig. 8 is the part sectional arrangement drawing of cooled metal ring in the presentation graphs 7.
Fig. 9 is the sectional drawing that dwindles along X-X line section of Fig. 7.
Figure 10 is the part sectional arrangement drawing of other examples of presentation graphs 7.
Figure 11 is the sectional drawing that dwindles of other examples of presentation graphs 9.
Figure 12 is the part sectional arrangement drawing of other examples of presentation graphs 7.
Figure 13 is the part sectional arrangement drawing of the cooled state of metal ring of expression Figure 12.
Figure 14 is the part sectional arrangement drawing of other examples of presentation graphs 7.
Figure 15 is the sectional arrangement drawing of the cooled state of metal ring of expression Figure 14.
Figure 16 is the part sectional arrangement drawing of the electric molting adhesing joint construction of the first preceding example of expression.
Figure 17 is for producing the part sectional arrangement drawing of the state in gap on expression shaping back resin and the intermetallic mating face.
[symbol description]
11 connected elements
12 connecting cylinder portions
13,14 dovetail ditches
15 serrations
16 joint components
17 melt bonded portions
18 heaters
21,22 wedge-shaped parts
23 taper ditches
24 wide diameter portions
25 conical surfaces
26,27 O shapes ring
28 thin slices
29 metal rings
32 ribs
33 periphery ditches
Claims (11)
1. electric molting adhesing connector, it is characterized in that the stair-stepping connecting cylinder of formation portion on the metallic connected element of valve, joint class, on the exterior edge face of this connecting cylinder portion and interior edge face, form dovetail ditch or wedge-shaped part, simultaneously will in keep heater plastic electric molting adhesing joint component constitute one with above-mentioned connected element by inserting shaping.
In the claim 1 record electric molting adhesing connector, wherein on the outer circumferential face of above-mentioned connecting cylinder portion, form in the continuous jog, serrations, cycloid portion, a plurality of hollow, or with these appropriate combination, or on the protuberance of jog, implement cycloid.
3. electric molting adhesing connector, it is characterized in that the stair-stepping connecting cylinder of formation portion on the metallic connected element of valve, joint class, forming the degree of depth on the interior edge face of this connecting cylinder portion is that H, length are the taper ditch of L, simultaneously, interior plastic electric molting adhesing joint component that keeps heater and above-mentioned connected element are constituted one by inserting to be shaped, the outer end of the connection side of this joint component is placed in the above-mentioned taper ditch insert shaping.
4. the electric molting adhesing connector of record in the claim 3, wherein installing O shape is encircled at least one side of the corner part of above-mentioned taper ditch and the inside corner portion of interior edge face, then joint component and connected element is configured as one.
5. the electric molting adhesing connector of record in the claim 3 or 4 wherein at the end face portion installing thin slice of above-mentioned taper ditch side, is configured as one with joint component and connected element.
6. electric molting adhesing connector, it is characterized in that the stair-stepping connecting cylinder of formation portion on the metallic connected element of valve, joint class, interior plastic electric molting adhesing joint component that keeps heater and above-mentioned connected element are configured as one by inserting, and the while is embedded in complexed metal ring on the outer circumferential face of joint component of above-mentioned connecting cylinder portion outside.
7. the electric molting adhesing connector of record in the claim 6, the periphery that wherein will be engaged in the metal ring on the outer circumferential face of joint component is made concavo-convex with the tension joint component.
8. the electric molting adhesing connector of record in the claim 6 wherein cooperates above-mentioned metal ring across the outer circumferential face of the outer circumferential face of joint component and the connected element that is adjacent.
9. an electric molting adhesing connector wherein forms rib on the end of the connected element side of the metal ring of record in claim 8, this rib is fixed on the periphery ditch of connected element.
10. electric molting adhesing connector in claim 6-9 in the electric molting adhesing connector of any record, forms dovetail ditch, wedge shape ditch or taper ditch on the exterior edge face of the connecting cylinder portion of metallic connected element and interior edge face.
11. electric molting adhesing connector, in claim 6-10 in the electric molting adhesing connector of any record, on the outer circumferential face of connecting cylinder portion, form in the jog, serrations, cycloid portion, a plurality of hollow, or, perhaps on the protuberance of jog, implement cycloid with these appropriate combination.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28415594A JP3174703B2 (en) | 1994-10-25 | 1994-10-25 | Electric fusion splicer |
| JP284155/1994 | 1994-10-25 | ||
| JP284155/94 | 1994-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1121568A true CN1121568A (en) | 1996-05-01 |
| CN1069957C CN1069957C (en) | 2001-08-22 |
Family
ID=17674896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95117635A Expired - Fee Related CN1069957C (en) | 1994-10-25 | 1995-10-24 | Electric molting adhesing connector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3174703B2 (en) |
| KR (1) | KR100438990B1 (en) |
| CN (1) | CN1069957C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005015072A1 (en) * | 2003-08-11 | 2005-02-17 | Wei Qi | A connecting member of pipeline |
| CN102269301A (en) * | 2010-06-01 | 2011-12-07 | 上海龙胜实业有限公司 | Reinforced connecting structure of metal insert and plastic piece |
| CN104402233A (en) * | 2014-09-30 | 2015-03-11 | 仁新实业发展（信阳）有限公司 | Hyaline-quartz mixed powder used for synthetic quartzite |
| CN105221408A (en) * | 2015-10-22 | 2016-01-06 | 徐碎娒 | Parking heating plunger pump |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4573848B2 (en) * | 1997-03-31 | 2010-11-04 | Ｊｆｅ継手株式会社 | Conversion joint and manufacturing method thereof |
| JP4573847B2 (en) * | 1997-03-31 | 2010-11-04 | Ｊｆｅ継手株式会社 | Conversion joint and manufacturing method thereof |
| JP4573846B2 (en) * | 1997-03-31 | 2010-11-04 | Ｊｆｅ継手株式会社 | Conversion joint and manufacturing method thereof |
| KR100706937B1 (en) * | 2005-04-13 | 2007-04-11 | (주) 신화테크 | Knife gate valve |
| KR100750039B1 (en) * | 2006-03-23 | 2007-08-16 | 허차순 | Synthetic pipe |
| DE102007060394A1 (en) * | 2007-12-14 | 2009-06-18 | Robert Bosch Gmbh | Multi-component injection-molded part with cohesive seal |
| JP2011099499A (en) * | 2009-11-05 | 2011-05-19 | Onda Seisakusho:Kk | Joint |
| CN103195990A (en) * | 2012-11-02 | 2013-07-10 | 广州中臣碧阳船舶科技有限公司 | Application of steel-titanium-aluminum composite joint to refrigerating system of fishing boat |
| KR101494647B1 (en) * | 2013-10-28 | 2015-02-23 | 주식회사 오주산업 | Apparatus for connecting of plastic pipe |
| EP3115671B1 (en) * | 2015-07-07 | 2019-11-13 | Georg Fischer JRG AG | Transition fitting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7610202A (en) * | 1976-09-14 | 1978-03-16 | Venlo Metaalfab Bv | ONLY EASY CONNECTION BETWEEN TWO BODIES, ONE OF WHICH IS METAL AND THE OTHER OF PLASTIC. |
| IT1167933B (en) * | 1981-06-30 | 1987-05-20 | Solis Srl | Electronic monitoring device controlling rotating drum |
| JPS58144180U (en) * | 1982-03-24 | 1983-09-28 | 株式会社クボタ | Pipe joint structure |
| JPS6443289U (en) * | 1987-09-11 | 1989-03-15 | ||
| JP2829671B2 (en) * | 1990-09-26 | 1998-11-25 | 株式会社竹中工務店 | Automatic direction control method for excavator etc. |
-
1994
- 1994-10-25 JP JP28415594A patent/JP3174703B2/en not_active Expired - Fee Related
-
1995
- 1995-10-24 CN CN95117635A patent/CN1069957C/en not_active Expired - Fee Related
- 1995-10-24 KR KR1019950036843A patent/KR100438990B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005015072A1 (en) * | 2003-08-11 | 2005-02-17 | Wei Qi | A connecting member of pipeline |
| CN102269301A (en) * | 2010-06-01 | 2011-12-07 | 上海龙胜实业有限公司 | Reinforced connecting structure of metal insert and plastic piece |
| CN104402233A (en) * | 2014-09-30 | 2015-03-11 | 仁新实业发展（信阳）有限公司 | Hyaline-quartz mixed powder used for synthetic quartzite |
| CN105221408A (en) * | 2015-10-22 | 2016-01-06 | 徐碎娒 | Parking heating plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08121669A (en) | 1996-05-17 |
| JP3174703B2 (en) | 2001-06-11 |
| KR100438990B1 (en) | 2004-08-30 |
| KR960014743A (en) | 1996-05-22 |
| CN1069957C (en) | 2001-08-22 |
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