CN101571220B - Embedded electrofusion connecting piece and molding method - Google Patents

Embedded electrofusion connecting piece and molding method Download PDF

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Publication number
CN101571220B
CN101571220B CN2009100831930A CN200910083193A CN101571220B CN 101571220 B CN101571220 B CN 101571220B CN 2009100831930 A CN2009100831930 A CN 2009100831930A CN 200910083193 A CN200910083193 A CN 200910083193A CN 101571220 B CN101571220 B CN 101571220B
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hole
covering thread
reducing
connecting piece
embedded
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CN2009100831930A
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CN101571220A (en
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胡学文
陈斌
戴玉柏
杨艳玲
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Huachuang Tianyuan Industrial Developing Co Ltd
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Huachuang Tianyuan Industrial Developing Co Ltd
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Abstract

The invention relates to an embedded electrofusion connecting piece and a molding method. The connecting piece comprises a reducing through chipware, a warp thread and two wiring terminals, wherein the reducing through chipware is opened with four through holes, one blind hole and a horizontal groove communicated with a third through hole and the blind hole; one end of the warp thread penetrates the third through hole and gets out from a first through hole and then is connected with one wiring terminal, the other end bends at the blind hole by the horizontal groove, is wound on the wound surface at the big end of the reducing through chipware from the blind hole to a fourth through hole, and then passes through the fourth through hole and is connected with the other wiring terminal. By adopting the invention, not only one electrofusion sleeve can be saved and cost of reducing T-junction combined piece product can be greatly reduced, the length of the vertical end of the reducing T-junction is also shortened, thus lowering installation space requirement. The invention also can coordinate with a straight pipe to produce reducing through products in different specifications.

Description

Embedded electrofusion connecting piece and forming method
Technical field
The present invention relates to a kind of embedded electrofusion connecting piece and forming method, belong to technical field of plastic.
Background technique
In the use of plastic pipe or steel-plastic composite pipe, different engineerings has different piping design, and the type requirements of used reducing tee is various in the pipeline, but because used mould cost height is produced in reducing tee, all processing mold production of the reducing tee of every kind of specification, obviously impossible.At present, the method for solution is that the assembly parts mode that adopts positive threeway 5 to add reducing straight-through 6 satisfies market demands as shown in Figure 6, but needs an extra electric smelting sleeve 7 to connect when assembly, and cost is higher; On the other hand, because the connection length of assembly is longer, in some pipeline designs, can not satisfy on-the-spot usage requirement.In order to overcome the above problems, the big end straight-through at reducing directly twines covering thread, weld the vertical end inside that this end is inserted into threeway, not only can shorten the vertical end length of reducing tee, also save an electric smelting sleeve, concrete Placement is made up of positive threeway 5 and the present invention 8 as shown in Figure 7.Embedded electrofusion connecting piece 8 is inserted into welds the straight-through product of the reducing that then can produce corresponding specification in the straight tube.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, the embedded electrofusion connecting piece and the forming method thereof that provide a kind of needs that can satisfy market plurality of specifications reducing tee and lead directly to reduce cost.
Technical solution of the present invention is: embedded electrofusion connecting piece, comprise: reducing leads directly to chipware, covering thread and two wiring terminals, wherein reducing leads directly to the translot that has 4 through holes and 1 blind hole on the core and be communicated with the 3rd through hole and blind hole, one end of covering thread penetrates from first through hole from the 3rd through hole and passes, be connected with a wiring terminal again, the other end covering thread bends at the blind hole place through translot, begin to be wrapped on the winding face of the straight-through big end of chipware of reducing from the blind hole position, be wound into the 4th through hole, pass the 4th through hole again and be connected with another wiring terminal.
The cross section of described covering thread is the rectangle of the wide H of long L.
The forming method of embedded electrofusion connecting piece is characterized in that realizing by following steps:
The first step, turning are used to produce the plastics or the steel of the straight-through chipware (1) of reducing and mould the straight-through big end of compound reducing;
Second step, processing 4 through holes, blind hole and translots on the straight-through chipware of the good reducing of turning;
In the 3rd step, coiling soon covering thread is wrapped on the winding face of the straight-through chipware of processing through second step of reducing, obtains embedded electrofusion connecting piece.
Described the 3rd step winds the line realizes by following steps,
I, detection spooling equipment are in normal working;
II, covering thread front end peeling is handled, the copper wire of covering thread is penetrated by the 3rd through hole, first through hole passes, and the copper wire that will extract from first through hole passes first wiring terminal, fixes with needle-nose pliers;
III, plastic cap is applied on first wiring terminal, fills in first through hole together with first wiring terminal again;
IV, the covering thread that II is remaining are dragged tightly, fill in the translot to hit tight, and covering thread are bent with needle-nose pliers at the blind hole place, make remaining line be convenient to twine, and weld together with the covering thread and the straight-through chipware of reducing of heat gun with the blind hole place;
V, startup spooling equipment begin coiling;
When VI, covering thread are wound to last circle ending, cooperate bolt clipper that the covering thread of last circle a few circle covering threads terminal and that close on are welded together with heat gun;
VII, the covering thread that will twine last circle the 4th through hole that align reserved the surplus that second wiring terminal is installed and cut off covering thread, with the peeling of this section covering thread, copper wire penetrated from the 4th through hole, and second through hole passes;
VIII, the copper wire that will pass from second through hole are installed second wiring terminal and plastic cap, and both are pushed in second through hole, and coiling is finished.
The present invention compared with prior art beneficial effect is:
(1) adopts the present invention can save an electric smelting sleeve, greatly reduce the cost of reducing tee assembly parts product;
(2) adopt the present invention can shorten the vertical end length of reducing tee, reduced its requirement installing space;
(3) the present invention also can produce the straight-through product of reducing of all size by cooperating with straight tube.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention;
Fig. 2 is the structural representation of the straight-through chipware of reducing of the present invention;
Fig. 3 is the partial sectional view of Fig. 2;
Fig. 4 is a mode of connection schematic representation of the present invention;
Fig. 5 is a covering thread cross sectional representation of the present invention;
Fig. 6 is existing reducing tee assembling unit structure schematic representation;
Fig. 7 is for adopting reducing tee assembly parts schematic representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes reducing straight-through chipware 1, covering thread 2 and two wiring terminals 3.Wherein have the translot 16 of through hole 11~14, blind hole 15 and connecting through hole 13, blind hole 15 on the straight-through core 1 of reducing, one end of covering thread 2 penetrates from through hole 11 from through hole 13 and passes, be connected with a wiring terminal 3 again, the other end covering thread 2 bends at blind hole 15 places through translot 16, begin to be wrapped on the winding face 17 of the straight-through chipware 1 big end of reducing from blind hole 15 positions, be wound into through hole 14 places, pass through hole 14 again and be connected with another wiring terminal 3.
Covering thread 2 comprises that copper wire 21 and crust 22 form as shown in Figure 5, and cross section is for the rectangle of the wide H of long L, when being distributed into translot, should make outside the thicker side direction of covering thread 2, to prevent doubling in welding.
The straight-through chipware 1 of reducing is a main body of the present invention shown in Fig. 2,3, moulds the straight-through turning of compound reducing by overall plastic or steel and forms.The thickness of the big end turning that reducing is straight-through is the width H-0.5mm~H-0.3mm of covering thread 2.The winding face 17 of the straight-through chipware 1 of the reducing after the turning can not have shrinkage cavity, if any shrinkage cavity, must carry out the repair welding grinding process, and the winding face after the processing 17 should be smooth smooth, can not have significantly uneven.
Have through hole 11~14, blind hole 15 and translot 16 on the straight-through chipware 1 of reducing.Through hole 11 and through hole 13 are communicated with, and through hole 12 and through hole 14 are communicated with, and cleaning no-sundries in the hole is in order to avoid influence threading.Blind hole 15 and through hole 13 are on same axis, and the degree of depth of blind hole 15 is at 5 ± 0.5mm.
The position of translot 16 flutings is the axial location between blind hole 15 and 13 liang of holes of through hole, and the degree of depth is the length L~L+0.5mm of covering thread 2, and width is the width H~H+0.3mm of covering thread 2.
Forming method of the present invention:
1, the turning plastics or the steel that are used to produce the straight-through chipware 1 of reducing moulded the straight-through big end of compound reducing.
2, processing through hole 11~14, blind hole 15 and translot 16 on the straight-through chipware 1 of the good reducing of turning.
3, coiling is about to obtain embedded electrofusion connecting piece on the winding face 17 that covering thread 2 is wrapped in the straight-through chipware 1 of reducing that processes hole and groove.
1) detects spooling equipment and be in normal working.
2) covering thread 2 front ends peelings is handled, the copper wire 21 of covering thread 2 is penetrated by through hole 13, through hole 11 passes, and the copper wire 21 that will extract from through hole 11 passes first wiring terminal 3 as shown in Figure 4, fixes with needle-nose pliers.The copper wire 21 that guarantees covering thread 2 contacts good non-loosening with wiring terminal 3.The crust 22 of covering thread 2 should and wiring terminal between leave certain clearance and be used to twine copper wire 21.
3) plastic cap 4 is applied on first wiring terminal 3, fills in through hole 11 together with first wiring terminal 3 again.Assurance wiring terminal 3 does not expose and leave enough length in through hole 11, as shown in Figure 1.
4) remaining covering thread 2 is dragged tightly, fill in the translot 16 and hit tight, 15 places bend covering thread 2 once with needle-nose pliers in blind hole, make remaining line be convenient to twine, weld together with the straight-through chipware 1 of reducing with the covering thread 2 of heat gun with blind hole 15 places, weld length is no less than 8cm.
5) start spooling equipment and begin coiling.
When 6) covering thread 2 is wound to last circle ending, cooperates bolt clipper that covering thread 2 ends of last circle are no less than 5cm with heat gun and weld together with a few circle covering threads 2 that close on, prevent to become flexible.
7) will twine covering thread 2 aligned through holes 14 of last circle, and reserve the surplus that second wiring terminal 3 is installed and cut off covering thread 2, and with 2 peelings of this section covering thread, copper wire 21 be penetrated from through hole 14, through hole 12 places pass.
The copper wire 21 that 8) will pass from through hole 12 is installed second wiring terminal 3 and plastic cap 4, and both are pushed in the through hole 12, and assurance wiring terminal 3 does not expose and leave enough length in through hole 12, and shown in Fig. 1,4, coiling is finished.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.

Claims (10)

1. embedded electrofusion connecting piece, it is characterized in that comprising: reducing leads directly to chipware (1), covering thread (2) and two wiring terminals (3), wherein have first~fourth hole (11~14) on the straight-through chipware (1) of reducing, blind hole (15) and connection third through-hole (13), the translot (16) of blind hole (15), one end of covering thread (2) penetrates from first through hole (11) from third through-hole (13) and passes, be connected with a wiring terminal (3) again, the other end covering thread (2) is located to bend in blind hole (15) through translot (16), begin to be wrapped on the winding face (17) of the big end of the straight-through chipware (1) of reducing from blind hole (15) position, being wound into fourth hole (14) locates, from fourth hole (14), penetrate, second through hole (12) is located to pass, and is connected with another wiring terminal (3).
2. embedded electrofusion connecting piece according to claim 1 is characterized in that: the cross section of described covering thread (2) is the rectangle of the wide H of long L.
3. the forming method of embedded electrofusion connecting piece is characterized in that realizing by following steps:
The first step, turning are used to produce the plastics or the steel of the straight-through chipware (1) of reducing and mould the straight-through big end of compound reducing;
In second step, go up processing first~fourth hole (11~14), blind hole (15) and translot (16) at the straight-through chipware (1) of the good reducing of turning;
In the 3rd step, coiling soon covering thread (2) is wrapped on the winding face (17) of the straight-through chipware of processing through second step (1) of reducing, obtains embedded electrofusion connecting piece.
4. the forming method of embedded electrofusion connecting piece according to claim 3 is characterized in that: described the 3rd step coiling realizes by following steps,
I, detection spooling equipment are in normal working;
II, covering thread (2) front end peeling is handled, the copper wire (21) of covering thread (2) is penetrated by third through-hole (13), first through hole (11) passes, and the copper wire (21) that will extract from first through hole (11) passes first wiring terminal (3), fixes with needle-nose pliers;
III, plastic cap (4) is applied on first wiring terminal (3), fills in first through hole (11) together with first wiring terminal (3) again;
IV, the covering thread (2) that Step II is remaining are dragged tightly, fill in the translot (16) and hit tight, locate covering thread (2) to be bent in blind hole (15) with needle-nose pliers, make remaining line be convenient to twine, the covering thread of blind hole (15) being located with heat gun (2) welds together with the straight-through chipware (1) of reducing;
V, startup spooling equipment begin coiling;
When VI, covering thread (2) are wound to last circle ending, cooperate bolt clipper that the covering thread (2) of last circle a few circle covering threads (2) terminal and that close on are welded together with heat gun;
VII, will twine covering thread (2) the alignment fourth hole (14) of last circle, reserve the surplus that second wiring terminal (3) is installed and cut off covering thread (2), with this section covering thread (2) peeling, copper wire (21) is penetrated from fourth hole (14), second through hole (12) is located to pass;
VIII, the copper wire (21) that will pass from second through hole (12) are installed second wiring terminal (3) and plastic cap (4), and both are pushed in second through hole (12), and coiling is finished.
5. the forming method of embedded electrofusion connecting piece according to claim 3, it is characterized in that: the turning thickness of the described first step is covering thread (2) width H-0.5mm~H-0.3mm.
6. the forming method of embedded electrofusion connecting piece according to claim 3 is characterized in that: first through hole (11) in described second step and third through-hole (13) connection, second through hole (12) and fourth hole (14) connection.
7. the forming method of embedded electrofusion connecting piece according to claim 3 is characterized in that: the blind hole (15) in described second step and third through-hole (13) are on same axis, and blind hole (15) degree of depth is 5 ± 0.5mm.
8. the forming method of embedded electrofusion connecting piece according to claim 3, it is characterized in that: the position of translot (16) fluting in described second step is the axial location between blind hole (15) and third through-hole (13) two holes, the degree of depth is the length L~L+0.5mm of covering thread (2), and width is the width H~H+0.3mm of covering thread (2).
9. the forming method of embedded electrofusion connecting piece according to claim 4 is characterized in that: described step IV covering thread (2) is located to weld together with the straight-through chipware (1) of reducing in blind hole (15), and weld length is no less than 8cm.
10. the forming method of embedded electrofusion connecting piece according to claim 4, it is characterized in that: the covering thread of described step VI (2) welds 5cm at least near fourth hole (14).
CN2009100831930A 2009-05-07 2009-05-07 Embedded electrofusion connecting piece and molding method Active CN101571220B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2009100831930A CN101571220B (en) 2009-05-07 2009-05-07 Embedded electrofusion connecting piece and molding method

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CN101571220B true CN101571220B (en) 2010-12-01

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113172914A (en) * 2021-04-25 2021-07-27 江特科技股份有限公司 Electric melting pipe fitting for butt welding double-wall corrugated pipe and manufacturing process thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2462204Y (en) * 2001-02-01 2001-11-28 朱阳林 Electrical molten plastic tube fitting having welded automatic regulated
CN101025245A (en) * 2006-02-20 2007-08-29 潘刚 All-enclosuring type electric melting pipe piece and mfg. method
CN201225484Y (en) * 2008-07-02 2009-04-22 上海乔治费歇尔亚大塑料管件制品有限公司 Electric melting pipe fittings for embedded pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2462204Y (en) * 2001-02-01 2001-11-28 朱阳林 Electrical molten plastic tube fitting having welded automatic regulated
CN101025245A (en) * 2006-02-20 2007-08-29 潘刚 All-enclosuring type electric melting pipe piece and mfg. method
CN201225484Y (en) * 2008-07-02 2009-04-22 上海乔治费歇尔亚大塑料管件制品有限公司 Electric melting pipe fittings for embedded pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP平1-178437A 1989.07.14

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