CN201154546Y - Electric fuse joint - Google Patents
Electric fuse joint Download PDFInfo
- Publication number
- CN201154546Y CN201154546Y CNU2007201749291U CN200720174929U CN201154546Y CN 201154546 Y CN201154546 Y CN 201154546Y CN U2007201749291 U CNU2007201749291 U CN U2007201749291U CN 200720174929 U CN200720174929 U CN 200720174929U CN 201154546 Y CN201154546 Y CN 201154546Y
- Authority
- CN
- China
- Prior art keywords
- thermoplastic resin
- electric
- fusion joint
- pipe
- crosslinked
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model aims at providing an electric welding joint which can form by cross-linked polyolefin to improve the heat resistant strength and adopts an electric welding to realize the connection with a thermoplastic resin tube to improve the sealing property and operation. The whole electric welding joint (11) of the utility model is formed by the cross-linked polyolefin with heat resisting function. An inserting port (13) which is used for inserting the thermoplastic resin tube (12) forms an uncross-linked polyolefin layer (14), heating wires (15) are embedded in the internal circumferential face of the inserting port, and the heating wires are heated the uncross-linked polyolefin layer by electrifying the heating wires, thus causing the uncross-linked polyolefin layer (14) to melt to be welded with the thermoplastic resin tube (12).
Description
Technical field
The utility model relates to and is used to connect the thermoplastic resin pipe, by the heating wire energising that is embedded in the composition surface of thermoplastic resin pipe is made this electrothermal wire heating, thereby carries out electric-fusion joint with the welding of thermoplastic resin pipe.
Background technology
The thermoplastic resin pipe is an example to require stable on heating hot water supply pipe for example, and in the past, the hot water supply pipe uses cross-linked polyolefin pipes such as organosilane crosslinked polyethylene.This cross-linked polyolefin pipe, the contour warm nature of its hear resistance, high-temerature creep characteristic can be superior, has the shape retention energy, but can not welding.Therefore, the electric-fusion joint that uses as the joint of cross-linked polyolefin pipe just can not use as the joint of cross-linked polyolefin pipe, promptly use cross-linked polyolefin formation electric-fusion joint can not with the welding of thermoplastic resin pipe.
Therefore, as the pipe joint that is used to connect the cross-linked polyolefin pipe, use the joint that carries out mechanical connection usually.Fig. 1 and Fig. 2 represent the one example, it comprise have the adapter body 3 that is inserted into the portion that is pressed into 2 in the cross-linked polyolefin pipe 1, in the outside of cross-linked polyolefin pipe 1 chimeric split ring 4 and acorn nut 5, integral body is made of metal.In the time of on this joint being connected to pipe 1,, then split ring 4 is enclosed within on the pipe 1 from pipe end at first with acorn nut 5.Subsequently, the portion that is pressed into 2 of adapter body 3 is pressed into the tube end (Fig. 1) of pipe 1 from the inboard.Thereafter, being accompanied by split ring 4 shifts acorn nut 5 onto pipe end and is tightened on the threaded portion 6 of adapter body 3 and fixed.
The joint of Figure 1 and Figure 2, owing to being that the high joint of working pressure that is used for hot water supply pipe and so on requires resistance to pressure, thereby its complex structure and operation are also very poor; In addition, owing to be tube end to be crimped in the portion that is pressed into 2 of adapter body 3 realizing sealing by being screwed into acorn nut 5, thereby, when using for a long time, because relaxing, the stress of tube end causes that crimp force reduces, the problem that exists sealing property to reduce.
The utility model content
The purpose of this utility model is to provide a kind of electric-fusion joint, and this electric-fusion joint can improve high-temperature capability by forming with the cross-linked thermoplastic resin, and fetches by electric smelting and to carry out improving sealing property and operation with being connected of thermoplastic resin pipe.
The electric-fusion joint of first scheme of the present utility model, it is characterized in that: constitute by the cross-linked thermoplastic resin, has one to a plurality of coupling parts that are connected with the thermoplastic resin pipe, in this coupling part, at least on a coupling part, be formed with the non-crosslinked thermoplastic resin, in the layer of this non-crosslinked thermoplastic resin or outside the layer, be provided with the heating wire that joins with it on composition surface with pipe.
Bridging property thermoplastic resin of the present utility model is the resin that becomes stereochemical structure by the intermolecular cross-linking of thermoplastic resin, except crosslinked with silicane thermoplastic resin, divinyl benzene crosslinked thermoplastic resin etc. is undertaken the crosslinked resin by crosslinking agent, can also be directly to carry out crosslinked resin by organic peroxide, radioactive ray etc.
The coupling part is provided with a place at for example hat joint or saddle with the occasion of joint, in the occasion of casing joint or union elbow two places is set, and for divergent shape joint three places is set.
As the thermoplastic resin pipe, can use that to have only skin section be the pipe that is formed by the non-crosslinked thermoplastic resin, the perhaps whole pipe that forms by the non-crosslinked thermoplastic resin.
The non-crosslinked thermoplastic resin can be enumerated the thermoplastic resin that does not have bridging property that uses as thermoplastic resin usually, be preferably polyolefin, as polyolefin, can enumerate carbon number is 2～20, and preferred carbon number is the independent polymer or the copolymer of 2～12 alpha-olefin.As preferred alpha-olefin, can enumerate ethene, propylene, 1-butylene, 4-methyl-1-pentene etc.
Heating wire both can be naked heating wire, also can be the coating heating wire that coats with thermoplastic resin.
The electric-fusion joint of alternative plan of the present utility model is in the electric-fusion joint of first scheme, and the non-crosslinked thermoplastic resin is painted to the color different with the cross-linked thermoplastic resin bed.
The electric-fusion joint of third party's case of the present utility model be first or the electric-fusion joint of alternative plan in, on the coupling part that does not form the non-crosslinked thermoplastic resin, fixing the metal connecting elements that is connected with thermoplastic resin pipe, metal tube hot-water heating metal fittings or spray water first-class (being designated hereinafter simply as the hot-water heating metal fittings).
As connecting elements, can use to have the metal tube that is screwed into the threaded portion on hot-water heating metal fittings etc.
The electric-fusion joint of cubic case of the present utility model is in the electric-fusion joint of third party's case, and connecting elements is bonded on the cross-linked thermoplastic resin by modified thermoplastic resin.
Modified monomers such as unsaturated epoxide such as the acid amides of unsaturated carboxylic acid anhydrides such as unsaturated carboxylic acid, maleic anhydride such as the useful acrylic acid of modified thermoplastic resin of the present utility model, maleic acid, unsaturated carboxylic acid, GMA connect the skill copolymerization and modified resins to polyolefin.The preferred modified thermoplastic resin relatively of the content of the modified monomer in the modified thermoplastic resin is the scope of 0.001～5 weight %.
The electric-fusion joint of the 5th scheme of the present utility model is in the electric-fusion joint of third party's case, and connecting elements is formed with concavo-convex on the part of its insertion cross-linked thermoplastic resin bed.
The electric-fusion joint of the 6th scheme of the present utility model is in the electric-fusion joint of any one scheme of first to the 5th scheme, the coupling part is the insertion section that can insert the thermoplastic resin pipe, this insertion section has the insertion groove of the ring-type that the end is arranged that can insert the thermoplastic resin pipe, and heating wire is located at outer peripheral face one side of insertion groove.
The electric-fusion joint of the 7th scheme of the present utility model is in the electric-fusion joint of the 6th scheme, and in the part that forms insertion groove, at least a portion is formed by the bridging property thermoplastic resin.
The electric-fusion joint of all directions of the present utility model case is in the electric-fusion joint of the 6th scheme, in forming the part of insertion groove, join with the inner peripheral surface of thermoplastic resin pipe and form by the bridging property thermoplastic resin from the part of medial support thermoplastic resin pipe.
The electric-fusion joint of the 9th scheme of the present utility model is the 4th to the from all directions in the electric-fusion joint of any one scheme of case, and connecting elements is connected with metal second connecting elements on being installed in hot-water heating metal fittings etc.
The electric-fusion joint of the tenth scheme of the present utility model, it is characterized in that: the above-mentioned coupling part that is formed with the non-crosslinked thermoplastic resin, be to be connected on the connection end of the whole collector that constitutes by the non-crosslinked thermoplastic resin, perhaps be connected to have and a plurality ofly constitute but skin section is on the above-mentioned connection end of collector of connection end of non-crosslinked thermoplastic resin, perhaps be connected on the aforementioned tube of the collector that forms for a plurality of each pipe that to connect terminal inserts moulding (insert molding) skin section respectively be the non-crosslinked thermoplastic resin that constitute by the non-crosslinked thermoplastic resin by the cross-linked thermoplastic resin.
The utlity model has following effect.
The electric-fusion joint of first scheme, owing to made by the cross-linked thermoplastic resin, thereby its high-temperature capability height, high-temperature behavior are good, are not easy to produce thermal deformation when electric-fusion, have the also good effect of its shape retention of connection that promptly is used in hot water supply pipe etc.; And, owing to be formed with the non-crosslinked thermoplastic resin on composition surface with the thermoplastic resin pipe, thereby, can fetch by electric smelting and carry out and being connected of thermoplastic resin pipe, therefore, it is easy to connect operation, improved operating efficiency, and sealing might as well, with the mechanical connection method relatively, have long-term use and can not damage the effect of sealing.
If adopt the electric-fusion joint of alternative plan,, thereby can judge to have the resinous joint of stable on heating cross-linked thermoplastic at an easy rate because non-crosslinked thermoplastic resin and cross-linked thermoplastic resin bed can distinguish by color.
If adopt the electric-fusion joint of third party's case, can be connected by connecting elements and hot-water heating metal fittings etc.
If the electric-fusion joint of the 4th or five schemes of employing, connecting elements are by modified thermoplastic resin or concavo-convex and joint bonding, thereby installation strength improves.
If the electric-fusion joint of the 6th scheme of employing, the thermoplastic resin pipe is inserted into when carrying out electric-fusion in the insertion groove, even the thermoplastic resin pipe is softening, a part that forms the joint that is formed by the cross-linked thermoplastic resin of insertion groove also can provide support from the inboard, thereby, can not produce the problem that narrows down runner is narrowed down and so on because of the thermoplastic resin pipe.
If adopt the electric-fusion joint of the 7th scheme, during electric-fusion or hot water by the time, insertion groove is difficult to distortion, also is difficult to distortion even softening and so on situation appears in the thermoplastic resin pipe.
If adopt the electric-fusion joint of case from all directions, during electric-fusion or hot water by the time, can not produce the problem that narrows down runner is narrowed down because of distortion even softening and so on situation appears in the thermoplastic resin pipe yet.
If the electric-fusion joint of the 9th scheme of employing, hot-water heating metal fittings etc. can be connected with the electric-fusion joint by second connecting elements.
If the electric-fusion joint of the tenth scheme of employing can be connected with collector.
Description of drawings
Fig. 1 is the cutaway view of existing pipe joint.
Fig. 2 is the cutaway view after the pipe joint of Fig. 1 is assembled.
Fig. 3 is the cutaway view of electric-fusion joint of the present utility model.
Fig. 4 is the vertical view of collector.
Fig. 5 is the left view of collector shown in Figure 4.
Fig. 6 is the right view of collector shown in Figure 4.
Fig. 7 is the cutaway view of another embodiment of electric-fusion joint of the present utility model.
Fig. 8 is the cutaway view of an embodiment again of electric-fusion joint of the present utility model.
Fig. 9 is the cutaway view of the another embodiment of electric-fusion joint of the present utility model.
Figure 10 is the front view of the another embodiment of electric-fusion joint of the present utility model.
Figure 11 is the left view of electric-fusion joint shown in Figure 10.
Figure 12 is the cutaway view of the another embodiment of electric-fusion joint of the present utility model.
Figure 13 is the front view of adapter body shown in Figure 12.
Figure 14 is the left view of adapter body shown in Figure 13
Figure 15 is the front view of connecting elements shown in Figure 12.
Figure 16 is the left view of connecting elements shown in Figure 15.
Figure 17 is the right view of connecting elements shown in Figure 15.
Figure 18 is the front view of an embodiment again of electric-fusion joint of the present utility model.
Figure 19 is the left view of electric-fusion joint shown in Figure 180.
Figure 20 is the front view of an embodiment again of electric-fusion joint of the present utility model.
Figure 21 is the left view of electric-fusion joint shown in Figure 20.
Figure 22 is the front view that is used for fixing the installation metal fittings of electric-fusion joint shown in Figure 20.
Figure 23 is the vertical view of installation metal fittings shown in Figure 22.
Figure 24 is the front view of an embodiment again of electric-fusion joint of the present utility model.
Figure 25 is the left view of electric-fusion joint shown in Figure 24.
Figure 26 is the vertical view of electric-fusion union elbow of the present utility model.
Figure 27 is the front view of electric-fusion joint shown in Figure 26.
Figure 28 is the right view of electric-fusion joint shown in Figure 26.
Figure 29 is mounted in the front view of the installation metal fittings on the union elbow.
Figure 30 is the upward view of installation metal fittings shown in Figure 29.
Figure 31 is the right view of installation metal fittings shown in Figure 29.
Figure 32 is that the installation metal fittings with other pattern are installed in the front view on the union elbow.
Figure 33 is the upward view of installation metal fittings shown in Figure 32.
Figure 34 is the right view of installation metal fittings shown in Figure 32.
Figure 35 is that the installation metal fittings with other pattern are installed in the front view on the union elbow.
The front view of Figure 36 state that to be expression folded installation metal fittings shown in Figure 35.
The vertical view of Figure 37 state that to be expression folded installation metal fittings shown in Figure 35.
The right view of Figure 38 state that to be expression folded installation metal fittings shown in Figure 35.
Figure 39 is the vertical view of other pattern of union elbow.
Figure 40 is the left view of union elbow shown in Figure 39.
Figure 41 is the front view of union elbow shown in Figure 39.
Figure 42 is the vertical view that is used for fixing the installation metal fittings of union elbow shown in Figure 39.
Figure 43 is the front view of installation metal fittings shown in Figure 42.
Figure 44 is the front view of the other pattern of union elbow.
Figure 45 is the left view of union elbow shown in Figure 44.
Figure 46 is the right view of union elbow shown in Figure 44.
Figure 47 is the front view of the distortion pattern of expression union elbow.
Figure 48 is the left view of union elbow shown in Figure 47.
Figure 49 is the vertical view of Y shape fork shape joint.
Figure 50 is the left view of Y shape shown in Figure 49 fork shape joint.
The specific embodiment
Below, the electric-fusion joint of embodiment of the present utility model is described with reference to the accompanying drawings.
Fig. 3 is the cutaway view of electric-fusion joint 11, has the insertion section 13 as the coupling part of inserting thermoplastic resin pipe 12 in both sides, and whole is that cross-linked polyolefin forms with the cross-linked thermoplastic resin.And in each insertion section 13, has the non-crosslinked polyolefin layer 14 that forms one with cross-linked polyolefin within it on the side face, this non-crosslinked polyolefin layer 14 is painted to the color different with the joint made by cross-linked polyolefin 11, so that can discern joint 11 at an easy rate, be embedded with the heating wire 15 of coiled type in inside.In addition, though not shown, at the terminal pin that is provided with on the joint 11 on outstanding that be connected with the heating wire end, the connector that is used to be connected to the electric-fusion device.Like this too among the following figure.
Electric-fusion joint 11 can be made in the following manner, that is: for example heating wire 15 being made coiled type is embedded in the sleeve of being made by the non-crosslinked polyolefin, perhaps heating wire is wound on the sleeve periphery of being made by non-crosslinked alkene with coiled type and is inserted in the mould, then, injection contains the bridging property polyolefin of crosslinking agent, crosslinking coagent etc. to the non-crosslinked polyolefin, lamination and forming after the one makes this bridging property polyolefin crosslinked again.
The electric-fusion of electric-fusion joint 11 and thermoplastic resin pipe 12, be thermoplastic resin pipe 12 is inserted and is installed in the insertion section 13 of joint both sides after, by being switched on, heating wire 15 undertaken, heating wire 15 is owing to energising is generated heat, non-crosslinked polyolefin layer 14 fusions and be fused into one with thermoplastic resin pipe 12.
Electric-fusion joint 11 is except that being used for tube connector 12, also can for example similarly be connected as Fig. 4～shown in Figure 6 with above-mentioned, on the connection end 46 of the whole collector 45 that constitutes by the non-crosslinked thermoplastic resin, perhaps be connected to have and a plurality ofly constitute and skin section is on the above-mentioned connection end 46 of collector 45 of connection end 46 of non-crosslinked thermoplastic resin by the cross-linked thermoplastic resin, perhaps for constitute by the non-crosslinked thermoplastic resin a plurality of each connect terminal 46 respectively inserts moulding skin section be on the aforementioned tube of collector 45 of pipe of non-crosslinked thermoplastic resin.
If adopt the electric-fusion joint 11 of present embodiment, owing to be to form, thereby have high-temperature capability by cross-linked polyolefin, the connection that promptly is used in hot water supply pipe etc. also has good shape retention.In addition, be fused into one owing to buried the non-crosslinked polyolefin layer 14 of heating wire 15 underground with thermoplastic resin pipe 12, thereby have good sealing, the connection that promptly is used in the hot water supply pipe also can keep its sealing for a long time.
Fig. 7 represents is the section of the electric-fusion joint 21 of other embodiment, integral body is made of cross-linked polyolefin, be formed with the ring-type insertion groove 23 that the end is arranged of concentric circles respectively in the insertion section of both sides, in the part that forms this insertion groove 23, the part of outer circumferential side is the non-crosslinked polyolefin layer 25 that is embedded with heating wire 24, and the part of interior all sides 26 is the supporting layer that is made of cross-linked polyolefin of thermoplastic resin pipe 12.
With the electric-fusion of thermoplastic resin pipe 12, be by in the insertion groove 23 that thermoplastic resin pipe 12 is inserted into two insertion sections respectively after running into the bottom of this insertion groove 23, energising is carried out to heating wire 24 again.The electric-fusion joint 21 of present embodiment except have with the same effect of the electric-fusion joint 11 of above-mentioned embodiment, also have following effect.That is, during electric-fusion,, can not be out of shape owing to the support of the part (supporting layer) 26 that is subjected to from the inboard constituting by cross-linked polyolefin though thermoplastic resin pipe 12 is accompanied by the fusion of non-crosslinked polyolefin layer 25 and softens.Therefore, the runner of thermoplastic resin pipe 12 can not narrow down, can keep with welding before the runner that equates substantially.
What Fig. 8 represented is the section of the electric-fusion joint 31 of another embodiment, and it comprises whole by cross-linked polyolefin adapter body 32 that constitutes and the metal connecting elements 33 that is fixed on a side of this adapter body 32.
Form by improved polyalkene though the improved polyalkene layer 43 of present embodiment is whole, also improved polyalkene can be dispersed in the crosslinked polyolefin layer and form.
The electric-fusion joint 31 of present embodiment also has the effect same with the electric-fusion joint 21 of above-mentioned embodiment.
The electric-fusion joint 51 of embodiment shown in Figure 9 also comprises whole by crosslinked polyethylene hydrocarbon adapter body 52 that constitutes and the metal connecting elements 53 that is inserted into a side of this adapter body 52.
Adapter body 52 is same with the adapter body 32 of above-mentioned embodiment, be formed with insertion groove 55 in the insertion section of inserting thermoplastic resin pipe 12, and in the part that forms this insertion groove 55, the part of outer circumferential side is the non-crosslinked polyolefin layer 57 that is embedded with heating wire 56, and the part of interior all sides is a supporting layer 58.
The electric-fusion joint 62 of Figure 10 and embodiment shown in Figure 11 also comprises adapter body 63 and the metal connecting elements 64 that is made of cross-linked polyolefin, adapter body 63 is made adapter body 32 identical construction with the electric-fusion joint 31 of above-mentioned embodiment, omits the explanation to its structure.
The electric- fusion joint 31 and 51 of above-mentioned embodiment, periphery in connecting elements 33 and 53 is processed with screw thread, can directly be screwed into hot-water heating metal fittings etc. goes up or is screwed on second connecting elements that is fixed on this hot-water heating metal fittings etc. and connect, but connecting elements 64 for present embodiment, can be inserted into flange 65 can not rotate and contact with step 66, fixing with locking nut 67 again, thus be screwed on wall and ground etc.
The metal connecting elements 73 of the side that the electric-fusion joint 71 of embodiment shown in Figure 12 comprises Figure 13 and the adapter body 72 that is made of cross-linked polyolefin shown in Figure 14 and is inserted into this adapter body 72 and be connected Figure 15～second connecting elements 74 shown in Figure 17 on this connecting elements 73; Adapter body 72 has same configuration with the adapter body 32 of the electric-fusion joint 31 of above-mentioned embodiment, has omitted the explanation to its structure.Among the figure, label 80 is the terminal pins that protrude on the connector that is connected to not shown electric-fusion device that adapter body 72 is provided with.
Second connecting elements 74 is clipped in the middle hexagonal spanner holding section 76 and has threaded portion 77,78 in both sides, the threaded portion 77 of one side is screwed on the acorn nut 75 and connects, and the threaded portion 78 of opposite side is directly connected to then that hot-water heating metal fittings etc. are gone up or connects by second connecting elements (not shown) that is fixed on this hot-water heating metal fittings etc.Among the figure, label 79 is for the ring of the O shape on the end that is installed in second connecting elements 74 to sealing between the connecting elements 73 and second connecting elements 74.
The electric-fusion joint 81 of Figure 18 and embodiment shown in Figure 19 comprises that the adapter body 82 that is made of cross-linked polyolefin and an end are inserted into this and are connected metal connecting elements 83 in the main body 82, adapter body 82 is made and the adapter body 32 of the electric-fusion joint 31 of the embodiment that describes in detail at Fig. 8 and Fig. 9 or adapter body 52 identical construction of electric-fusion joint 51, has omitted the explanation to its structure.
Connecting elements 83 is made spanner holding section 84 is clipped in the middle, and the insertion section of a side and above-mentioned electric-fusion joint are equally by improved polyalkene layer bonding and be fixed on the adapter body 32, perhaps form concavo-convex and link into an integrated entity, its opposite side is processed with screw thread.
Figure 20 and electric-fusion joint 91 shown in Figure 21 comprise by cross-linked polyolefin constitute and with the adapter body of above-mentioned embodiment make same configuration adapter body 92, metal connecting elements 93, be used to connect the two by the installation portion 94 that constitutes with the cross-linked polyolefin that is connected main body 92 identical materials.
What Figure 22 and Figure 23 represented is the installation metal fittings that are used for fixing above-mentioned electric-fusion joint 91, and is installed on the installation portion 94.
Figure 24 and electric-fusion joint 101 shown in Figure 25 comprise by cross-linked polyolefin to be made and has adapter body that is connected the main body identical construction 102 and metal connecting elements 103 with above-mentioned embodiment, and flange 105 utilizes locking nut 104 to be fixed on this connecting elements 103.
Though the expression of the electric- fusion joint 11,21,31,51,62,71,91,101 of the respective embodiments described above all be in both sides or a side has thimble tube electric-fusion joint as the insertion section of coupling part, but about other electric-fusion joint, the union elbow that for example has 1～3 insertion section, fork shape joint, hat joint or saddle joint and auxiliary divergent shape joint are too, can whole form, and the non-crosslinked polyolefin layer is set on composition surface with the thermoplastic resin pipe by cross-linked polyolefin.
The electric-fusion joint 111 of the bent tube type that Figure 26～Figure 28 represents, comprise the adapter body 112 made by cross-linked polyolefin and be inserted into metal connecting elements 113 in the adapter body 112 with these adapter body 112 quadratures and an end, adapter body 112 is made adapter body 32 identical construction with above-mentioned electric-fusion joint 31.
Figure 29～Figure 31 represents is an example that is used to install the installation metal fittings of above-mentioned electric-fusion joint 111, and Figure 32～Figure 34 is another example that metal fittings are installed, and what Figure 35～Figure 38 represented is that another example that metal fittings can slide is installed.
What Figure 39～Figure 41 represented is the union elbow of other pattern, in union elbow shown in Figure 26 111, adapter body 112 is to be connected by the installation portion 114 that is made of the cross-linked polyolefin with adapter body 112 identical materials with connecting elements 113, is formed with to be used for anti-skidding protuberance 115 on installation portion 114.
Figure 42 and Figure 43 are the installation metal fittings that are used for fixing the union elbow of Figure 39～shown in Figure 41, make can be installed on the installation portion 114.
Figure 44～electric-fusion joint shown in Figure 46 is the distortion pattern of union elbow, Figure 47 and Figure 48 are the other distortion patterns of union elbow, they all are made of the adapter body 122 and the metal connecting elements 123 of above-mentioned structure, and the flange 124 usefulness locking nuts 125 that are used to be installed on wall or the ground etc. are fixed on connecting elements 123.
Figure 49 and Figure 50 represent is Y shape fork shape joint, is wholely formed by cross-linked polyolefin, inserts mouth in each that insert thermoplastic resin pipe etc., same with the electric-fusion joint or the adapter body of above-mentioned embodiment, is provided with the non-crosslinked polyolefin layer of having buried heating wire underground.
Claims (10)
1. electric-fusion joint, it is characterized in that: constitute by the cross-linked thermoplastic resin, has one to a plurality of coupling parts that are connected with the thermoplastic resin pipe, in this coupling part, at least on a coupling part, be formed with the non-crosslinked thermoplastic resin on composition surface, in the layer of this non-crosslinked thermoplastic resin or outside the layer, be provided with the heating wire that joins with it with pipe.
2. electric-fusion joint according to claim 1 is characterized in that: the non-crosslinked thermoplastic resin is painted to the color different with the cross-linked thermoplastic resin bed.
3. electric-fusion joint according to claim 1 is characterized in that: on the coupling part that does not form the non-crosslinked thermoplastic resin, fixing the metal connecting elements that is connected with hot-water heating metal fittings etc.
4. electric-fusion joint according to claim 3 is characterized in that: connecting elements is by modified thermoplastic resin and cross-linked thermoplastic resin bed bonding.
5. electric-fusion joint according to claim 3 is characterized in that: connecting elements is formed with concavo-convex on the part of its insertion cross-linked thermoplastic resin bed.
6. according to each the described electric-fusion joint in the claim 1～5, it is characterized in that: the coupling part is the insertion section that can insert the thermoplastic resin pipe, this insertion section has the insertion groove of the ring-type that the end is arranged that can insert the thermoplastic resin pipe, and heating wire is located at outer peripheral face one side of insertion groove.
7. electric-fusion joint according to claim 6 is characterized in that: in the part that forms insertion groove, at least a portion is formed by the bridging property thermoplastic resin.
8. electric-fusion joint according to claim 6 is characterized in that: in forming the part of insertion groove, join with the inner peripheral surface of thermoplastic resin pipe and formed by the bridging property thermoplastic resin from the part of medial support thermoplastic resin pipe.
9. according to each the described electric-fusion joint in the claim 3～5, it is characterized in that: connecting elements is connected with metal second connecting elements on being installed in hot-water heating metal fittings etc.
10. electric-fusion joint according to claim 1 and 2, it is characterized in that: the described coupling part that is formed with the non-crosslinked thermoplastic resin, be to be connected on the connection end of the whole collector that constitutes by the non-crosslinked thermoplastic resin, perhaps be connected to have and a plurality ofly constitute but skin section is on the described connection end of collector of connection end of non-crosslinked thermoplastic resin, perhaps be connected on the described pipe for the collector of a plurality of each pipe that to connect terminal inserts moulding skin section respectively be the non-crosslinked thermoplastic resin that constitute by the non-crosslinked thermoplastic resin by the cross-linked thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201749291U CN201154546Y (en) | 2007-09-07 | 2007-09-07 | Electric fuse joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201749291U CN201154546Y (en) | 2007-09-07 | 2007-09-07 | Electric fuse joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201154546Y true CN201154546Y (en) | 2008-11-26 |
Family
ID=40102333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201749291U Expired - Lifetime CN201154546Y (en) | 2007-09-07 | 2007-09-07 | Electric fuse joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201154546Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770259A (en) * | 2010-02-26 | 2012-11-07 | 麦格纳国际公司 | Resistive implant welding for adhesive curing for thermoplastic and thermoset applications |
| CN105221408A (en) * | 2015-10-22 | 2016-01-06 | 徐碎娒 | Parking heating plunger pump |
| CN108374940A (en) * | 2017-01-30 | 2018-08-07 | 乔治费歇尔哈维尔有限责任公司 | Pipe jointing part and coupling method |
| CN115003947A (en) * | 2020-01-24 | 2022-09-02 | 积水化学工业株式会社 | Electric fusion joint and fusion method |
-
2007
- 2007-09-07 CN CNU2007201749291U patent/CN201154546Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770259A (en) * | 2010-02-26 | 2012-11-07 | 麦格纳国际公司 | Resistive implant welding for adhesive curing for thermoplastic and thermoset applications |
| CN102770259B (en) * | 2010-02-26 | 2015-11-25 | 麦格纳国际公司 | For the adhesive sclerosis resistance implanted welding that thermoplasticity application and thermosetting are applied |
| CN105221408A (en) * | 2015-10-22 | 2016-01-06 | 徐碎娒 | Parking heating plunger pump |
| CN108374940A (en) * | 2017-01-30 | 2018-08-07 | 乔治费歇尔哈维尔有限责任公司 | Pipe jointing part and coupling method |
| CN108374940B (en) * | 2017-01-30 | 2021-10-01 | 乔治费歇尔哈维尔有限责任公司 | Pipe coupling and coupling method |
| CN115003947A (en) * | 2020-01-24 | 2022-09-02 | 积水化学工业株式会社 | Electric fusion joint and fusion method |
| CN115003947B (en) * | 2020-01-24 | 2024-03-22 | 积水化学工业株式会社 | Electric welding joint and welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5150922A (en) | Electrofusion joint and hot water supply header using the same | |
| CN201154546Y (en) | Electric fuse joint | |
| CN105042221B (en) | Spigot-and-socket steel band reinforced polyethylene spiral ripple pipe and its joint and connection method | |
| CN206022664U (en) | A kind of adjustable power splicing tube | |
| CN101498386A (en) | Metal framework reinforced plastic composite pipe network and connecting method | |
| CN201152409Y (en) | Metallic skeleton reinforced composite plastic pipe network | |
| CN219809597U (en) | Plastic electrofusion pipe fitting suitable for welding of different materials | |
| JP2868091B2 (en) | Electrofusion fitting with connecting member | |
| JP2887275B2 (en) | Method of manufacturing header for hot water supply | |
| CN202371371U (en) | Live-connection fitting and multi-way fitting | |
| CN201155624Y (en) | Metal skeleton reinforced composite plastic pipeline | |
| CN201615308U (en) | Polypropylene plastic flexible joint | |
| CN201014125Y (en) | Plastic pipe flexible seal connecting mechanism | |
| CN101227031A (en) | Connecting terminal | |
| CN106678458B (en) | A kind of easily direct Petroleum Pipehead of duplex | |
| CN202756799U (en) | Pentatricopeptide repeat (PPR) plastic reducing fitting | |
| CN207814671U (en) | A kind of enhanced pipe joint | |
| CN209977540U (en) | Steel wire mesh framework polyethylene plastic composite pipe joint | |
| CN100449192C (en) | Pipe network for connecting holed metal skeleton reinforced plastic composite pipe and plastic connector | |
| JP2536618B2 (en) | Electrofusion fitting with connecting member | |
| CN208474701U (en) | A kind of tube connector welder | |
| CN2492737Y (en) | Pipe union of organosilane cross-linked polyethylene and with electrothermal wire | |
| JPH02253084A (en) | Header for hot water supply | |
| JPH02256996A (en) | Electrofusion joint with connecting member | |
| CN210898493U (en) | Plastic-coated hose connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |
|
| CX01 | Expiry of patent term |