CN102785361B - Heating clamp for steel-plastic composite pipe - Google Patents
Heating clamp for steel-plastic composite pipe Download PDFInfo
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- CN102785361B CN102785361B CN201210222077.4A CN201210222077A CN102785361B CN 102785361 B CN102785361 B CN 102785361B CN 201210222077 A CN201210222077 A CN 201210222077A CN 102785361 B CN102785361 B CN 102785361B
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- electromagnetic heating
- arc plate
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- band
- ring
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Abstract
The invention relates to a heating device for butting of plastic pipes. A heating clamp for a steel-plastic composite pipe comprises a heating mechanism and a clamping mechanism, wherein the heating mechanism comprises an electromagnetic heating ring and a drive control circuit for the electromagnetic heating ring, the electromagnetic heating ring comprising an insulating case and an excitation coil inside the case, and the excitation coil being electrically connected with the drive control circuit for the electromagnetic heating ring; the clamping mechanism comprises two hold hoops and an axial approaching mechanism which enables the two hold hoops to axially move closer, the axial approaching mechanism comprising springs. According to the heating clamp for the steel-plastic composite pipe, pipelines and pipe fittings can be always in a tightly resisted state during the butting process, and no open flame is needed to melt the plastic layer, so that problems of loose-sealed pipeline systems caused by unchanged initial positions of relative positions of the pipelines and the pipe fittings during the process of butt fusion for the steel-plastic composite pipe, and problems of poor safety and harmful gases caused by heating using open fires can be resolved.
Description
Technical field
The present invention relates to plastic tube heating docking facilities, relate in particular to a kind of steel-plastics composite pipe heated jig.
Background technology
When pipeline is connected, metallic conduit connects by screw thread.And plastic conduit, because the intensity of plastics is poor, is understood the reasons such as softening after temperature raises, the method being generally by heat fused coordinates pipe fitting by conduits fused together.
In China Patent No., be 2010202637717, Granted publication day be July 19 in 2010 day, be called in the patent documentation of " a kind of docking socket joint welding all-in-one " and disclose a kind of equipment for plastic tube is connected.
It is existing that steel-plastics composite pipe is docked to the mode that adopted mode docks with plastic tube is identical, have the following disadvantages: in the process of welding, treat the pipeline of welding and the relative position of pipe fitting be remain on initial position constant, can not remain at the state of pushing against, the anisotropic stress producing during plastic molting can cause junction to throw off, cause pipe-line system poorly sealed; By heating wire or alternate manner, produce naked light and make plastic molting, not only poor stability during operation but also can produce pernicious gas; The characteristic of steel-plastics composite pipe is not fully used.
Summary of the invention
The invention provides a kind of in the process of docking pipeline and pipe fitting can remain at the state of pushing against and without the steel-plastics composite pipe heated jig of naked light molten plastic layer, solved and plastic steel composite pipe is carried out in the process of heat-melting butt-joint to suitable position due to pipeline and pipe fitting can only remain on the poorly sealed problem of constant the caused pipe-line system of initial position and heat existing poor stability, can produce the problem of pernicious gas by naked light.
Above technical problem solves by following technical proposal: a kind of steel-plastics composite pipe heated jig, comprise heating arrangements and clamping device, described heating arrangements comprises Electromagnetic Heating ring and Electromagnetic Heating ring Drive and Control Circuit, described Electromagnetic Heating ring comprises insulation crust and is positioned at the magnet exciting coil of shell, magnet exciting coil is electrically connected with described Electromagnetic Heating ring Drive and Control Circuit, clamping device comprises two anchor ears and makes that two anchor ears axially draw close axially draws close structure, and the described structure of axially drawing close comprises spring.In the process that plastic steel composite pipe is connected, pipeline is plugged in pipe fitting and is pushed against together (in the design process of pipe fitting, the inner surface of pipe fitting can design the step for the location of pipeline inserting), two anchor ears are held tightly respectively on pipeline and pipe fitting, Electromagnetic Heating ring is encircled the junction at pipeline and pipe fitting, under the effect of spring of axially drawing close structure, two anchor ears drive pipeline and pipe fitting to remain at the state of pushing against, Electromagnetic Heating ring Drive and Control Circuit carries alternating current to the magnet exciting coil of Electromagnetic Heating ring, make magnet exciting coil produce alternating magnetic field, this magnetic field makes the metal level of the junction of pipeline and pipe fitting produce alternation vortex flow and generate heat, the heat that metal level produces makes the moulding layer fusing of Plastic Steel Pipe and is welded together.
As preferably, described two anchor ears are respectively front anchor ear and rear anchor ear, the described structure of axially drawing close also comprises that first handle and one end of being hinged on rear anchor ear are hinged on the pull bar on first handle, and described spring one end is connected on front anchor ear, the other end of the other end and pull bar links together.Before front anchor ear and rear armful are separately fixed at pipeline and pipe fitting, make first handle in the position towards front anchor ear, front anchor ear and rear anchor ear are fixed on pipeline and pipe fitting, then rotate first handle to first handle away from front anchor ear, first handle makes spring stress and strain by pull bar, make front anchor ear and rear anchor ear have the trend of axially drawing close, also make pipeline can remain at the state together with being axially pushed against with pipe fitting.Convenient and strength-saving when pipeline and pipe fitting are gripped by the present invention, the design of pull bar can avoid spring to produce and interfere with rear anchor ear.
As preferably, described Electromagnetic Heating ring comprises two hinged Electromagnetic Heating halfround bar slices, is provided with the first folding structure between Electromagnetic Heating halfround bar slice.During use, make two halfround bar slices rotate and to open and realize magnetic conduction heating ring is installed to the connecting portion of pipeline and pipe fitting and takes off from connecting portion with hinge, by the first folding structure, two Electromagnetic Heating halfround bar slices are close together, convenient while installing and taking off magnetic conduction heating ring.
As preferably, described the first folding structure is torsion spring, and Electromagnetic Heating halfround bar slice is provided with second handle.By torsion spring, halfround bar slice is closed up automatically, by second handle, handle opening of halfround bar slice.Convenience during operation is good.
Preferred as another, described Electromagnetic Heating ring comprises the first Electromagnetic Heating arc plate, the second Electromagnetic Heating arc plate and the 3rd Electromagnetic Heating arc plate being positioned on same circumference, circumferential one end of the first Electromagnetic Heating arc plate is hinged with circumferential one end of the second Electromagnetic Heating arc plate, the circumferential other end of the second Electromagnetic Heating arc plate is hinged with circumferential one end of the 3rd Electromagnetic Heating arc plate, and the circumferential other end of the 3rd Electromagnetic Heating arc plate is provided with the second folding structure with between the circumferential other end of the first Electromagnetic Heating arc plate.Structural compactness is good, especially when the diameter of the pipeline connecting is greater than 90 millimeters, is also the diameter of magnetic conduction heating ring while being greater than 90 millimeters, can carry out easily the folding of magnetic conduction heating ring.
As preferably, described the second folding structure comprises the gib head that is arranged on the 3rd Electromagnetic Heating arc plate, is hinged on the handle on the first Electromagnetic Heating arc plate and is hinged on the clasp that the same gib head on handle matches.In use procedure, by clasp, be buckled on gib head, then swing handle, makes clasp and gib head remain on tightening state.
As preferably, the described structure of axially drawing close has two at least, axially draws close structure being circumferentially uniformly distributed along anchor ear.Can prevent that pipeline and pipe fitting from producing axially crooked.Centering is effective.The glacing flatness of the pipe that assurance links together.
As preferably, described anchor ear comprises band, and the inner peripheral surface of described band is provided with the flexure strip of domes.In the heating process of heating docking, the deliquescing if the position that the same anchor ear of pipeline or pipe fitting connects is heated, flexure strip can make anchor ear remain at pipe the state of holding tightly, if flexure strip is not set, may produce loosening phenomenon.Reliability while having improved work.
As preferably, described anchor ear also comprises the pressure strip on described band by flexure strip resiliency supported.During use, flexure strip clamps pipeline by pressure strip.Make anchor ear to the active force of pipeline the circumferential continuous distributed along pipeline, can not produce that part does not stress and the phenomenon of damaging catheter surface.
As preferably, described pressure strip is provided with band brace, and band brace and pressure strip surround connecting ring, band is located in described connecting ring, flexure strip is fixed together with pressure strip, and flexure strip is connected to together with band, and band can move in described connecting ring.The method that pressure strip is fitted together with band is: first pressure strip is placed on the inner peripheral surface of band, bending band brace, makes to form and be enclosed within the connecting ring on band between band brace and pressure strip, thereby realize pressure strip with the connection of band.Connecting ring can be split ring.If in the time of need to taking off pressure strip and flexure strip in use, only need to prize band brace, make connecting ring occur the opening of throwing off for band, pressure strip together can be taken down from band together with flexure strip.Easy installation and removal can optionally be selected flexure strip and crimping plate according to using needs in use on band, has improved convenience and versatility while using.Movably beneficial effect is: in use, can, by adjusting flexure strip and the position of pressure strip on band, improve the adaptability while using.
The present invention has following advantage, by anchor ear is set, pipeline and pipe fitting are fixed, convenient during connection, between two anchor ears, arrange and axially draw close structure, in the process connecting at hot melt, pipeline and pipe fitting can remain at and axially push against state, and the anisotropic stress producing during plastic molting can not cause junction to throw off, and have improved the reliability of pipe-line system sealing; Make full use of the characteristic of Plastic Steel Pipe metal level, in pipeline connects, adopt the mode of Electromagnetic Heating to heat, because Electromagnetic Heating is that vortex phenomenon produces heat pioneeringly, heating is fast, and efficiency is high, heating accurate positioning, noiseless during equipment work, the flames of anger, produces without pernicious gas; Magnetic conduction heating ring arranges insulation crust, is conducive to the protection to magnet exciting coil, can prevent that operating personnel from producing and electrically contacting with magnet exciting coil simultaneously, and security is good.
Accompanying drawing explanation
Fig. 1 is the perspective view of the clamping device of embodiment mono-.
Fig. 2 is the schematic diagram of the heating arrangements of embodiment mono-.
Fig. 3 is the use view of embodiment mono-.
Fig. 4 is the Electromagnetic Heating ring of embodiment bis-structural representation when opening.
Fig. 5 is the Electromagnetic Heating ring of embodiment bis-structural representation when closing up state.
Fig. 6 is the structural representation of the clamping device of embodiment tri-.
Fig. 7 is the structural representation of the anchor ear of embodiment tetra-.
Fig. 8 is the A place enlarged diagram of Fig. 7.
Fig. 9 is B-B schematic cross-section of Fig. 8.
In figure: rear anchor ear 1, rear anchor ear connecting hole 11, rear anchor ear portion ear 12, band 13, band inner peripheral surface 14, flexure strip 15, pressure strip 16, band brace 161, flexure strip brace 162, connecting ring 17, front anchor ear 2, front anchor ear connecting hole 21, front anchor ear portion ear 22, axially draw close structure 3, first handle 31, spring 32, pull bar 33, Electromagnetic Heating ring 4, Electromagnetic Heating halfround bar slice 41, insulation crust 42, magnet exciting coil 43, hinge 44, second handle 45, the first folding structure 46, wire 47, the first Electromagnetic Heating arc plate 48, , the second Electromagnetic Heating arc plate 49, the 3rd Electromagnetic Heating arc plate 40, Electromagnetic Heating ring Drive and Control Circuit 5, pipeline 61, pipe fitting 62, step 621, the second clamping screw 65, the second locking nut 66, the second folding structure 7, gib head 71, handle 72, clasp 73.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Embodiment mono-, and referring to Fig. 1, a kind of steel-plastics composite pipe heated jig, comprises clamping device, and clamping device comprises that two anchor ears and 3 axially draw close structure 3.Axially draw close structure 3 being circumferentially uniformly distributed along anchor ear for 3.
Two anchor ears are respectively rear anchor ear 1 and front anchor ear 2.Rear anchor ear 1 and front anchor ear 2 respectively consist of two hinged semicircle bands 13.After forming, on the free end of two semicircle bands of anchor ear 1, being all provided with anchor ear connecting hole 11(is blocked invisible in the drawings).On the outer surface of rear anchor ear 1, be all provided with rear anchor ear portion ear 12.Before forming, on the free end of two semicircle bands of anchor ear 2, be all provided with anchor ear connecting hole 21.On the outer surface of front anchor ear 2, be all provided with front anchor ear portion ear 22.
Axially draw close structure 3 and comprise that the first handle 31, the front end that are hinged on rear anchor ear portion ear 1 are connected to the pull bar 33 on the rear end that spring 32 on front anchor ear portion ear 2 and front end be connected to spring 32.The rear end of pull bar 33 is hinged on the middle part of first handle 31.
Referring to Fig. 2, in the present embodiment, be also provided with heating arrangements.Heating arrangements comprises Electromagnetic Heating ring 4 and Electromagnetic Heating ring Drive and Control Circuit 5.Electromagnetic Heating ring Drive and Control Circuit 5 is the existing circuit of exporting for alternating voltage being changed into alternating current.This circuit has in electromagnetic oven.Electromagnetic Heating ring 4 comprises two Electromagnetic Heating halfround bar slices 41.Electromagnetic Heating halfround bar slice 41 comprises insulation crust 42 and is positioned at the magnet exciting coil 43 of insulation crust 42.Two insulation crusts 42 are hinged by hinge 44.On two insulation crusts 42, be all provided with second handle 45.Between two Electromagnetic Heating halfround bar slices 41, be provided with the first folding structure 46.The first folding structure 46 is for being set in the torsion spring on hinge 44.The two ends of torsion spring are abutted together with two second handles 45 respectively.Magnet exciting coil 43 is electrically connected with Electromagnetic Heating ring Drive and Control Circuit 5 by wire 47.
Referring to Fig. 3, during use, pipeline 61 is inserted into the end to pipeline 61 in pipe fitting 62 and is connected on the step 621 in pipe fitting.By subtend, pushing second handle 45 separates two the Electromagnetic Heating halfround bar slices 41 that form Electromagnetic Heating ring 42, make Electromagnetic Heating ring 42 be enclosed within the junction of pipeline 61 and pipe fitting 62, unclamp the effect of pressing to second handle 45, in first folding structure 46(Fig. 3, cannot see) effect under, two electromagnetism halfround bar slices 41 close up.First handle 31 is turned to towards front anchor ear 2, by the second clamping screw 65, through rear anchor ear connecting hole 11, coordinate the second locking nut 66 that rear anchor ear 1 is held tightly at pipe on 62, move axially front anchor ear 2 to naturally separately (naturally separately referring to the meaning that spring does not stress and is out of shape with rear anchor ear 1, certainly camber of spring also can, while just front anchor ear being installed, require great effort) in maximum distance apart, by the first clamping screw (being blocked invisible by front anchor ear in figure), through front anchor ear connecting hole (being blocked invisible by front anchor ear in figure), coordinate the first locking nut (being blocked invisible by front anchor ear in figure) that front anchor ear 2 is held tightly on pipeline 61.Rotate first handle 31 to away from front anchor ear 2, the stressed and elastic elongation of spring 32 now, make pipeline 61 with pipe fitting 62 have relative motion trend, the two can be pushed against together all the time.Open Electromagnetic Heating ring Drive and Control Circuit 5, Electromagnetic Heating ring Drive and Control Circuit 5 carries alternating current to magnet exciting coil 43, magnet exciting coil 43 produces alternating magnetic field, the part that the metal level 611 of pipeline and the metal level 621 of pipe fitting are positioned at this magnetic field produces the vortex flow of alternation and generates heat, this heat makes together with the plastically welding of pipeline 61 and the junction of pipe fitting 62, stop Electromagnetic Heating ring Drive and Control Circuit 5, after the junction of pipeline 61 and pipe fitting 62 is cooling, takes off the present invention and complete pipeline with the connection of pipe fitting.
Embodiment bis-, referring to Fig. 4, are: Electromagnetic Heating ring comprises the first Electromagnetic Heating arc plate 48, the second Electromagnetic Heating arc plate 49 and the 3rd Electromagnetic Heating arc plate 40 being positioned on same circumference with the difference of embodiment mono-.Circumferential one end of the first Electromagnetic Heating arc plate 48 is hinged with circumferential one end of the second Electromagnetic Heating arc plate 49, the circumferential other end of the second Electromagnetic Heating arc plate 49 is hinged with circumferential one end of the 3rd Electromagnetic Heating arc plate 40, and the circumferential other end of the 3rd Electromagnetic Heating arc plate 40 is provided with the second folding structure 7 with between the circumferential other end of the first Electromagnetic Heating arc plate 48.The second folding structure 7 comprises the gib head 71 that is arranged on the 3rd Electromagnetic Heating arc plate 40, is hinged on the handle 72 on the first Electromagnetic Heating arc plate 48 and is hinged on the clasp 73 on handle 72.Every a slice Electromagnetic Heating arc plate is with in embodiment mono-, all insulation crust and the magnet exciting coil that is positioned at insulation crust, consists of.
Referring to Fig. 5, the method of Electromagnetic Heating cyclization being held together by the second folding structure 7 is: towards the 3rd Electromagnetic Heating arc plate 40 swing handles 72, to clasp 73, be buckled on gib head 71, then away from the 3rd Electromagnetic Heating arc plate 40 swing handles 72, to handle 72, be close on the first Electromagnetic Heating arc plate 48.
Embodiment tri-, referring to Fig. 6, with the difference of embodiment mono-, are axially to draw close structure 3 and only have two.Axially draw close structure 3 for spring.When front anchor ear 1 and rear anchor ear 2 are fixed on pipeline and pipe fitting, the distance that makes the two be in making the position of spring 32 distortion.
Embodiment tetra-, referring to Fig. 7, with the difference of embodiment tri-, be: on the band inner peripheral surface 14 of a band in two bands 13 of anchor ear, be provided with domes flexure strip 15 and by flexure strip 15 resiliency supported the inner peripheral surface of band 13 on pressure strip 16.The two ends of pressure strip 16 are all provided with band brace 161.The centre of pressure strip 16 is provided with flexure strip brace 162.The two is structure as a whole band brace 161 and flexure strip brace 162 with pressure strip 16.Flexure strip 15 is with holding tightly together by flexure strip brace 162 between pressure strip 16.Flexure strip 15 is connected on the inner peripheral surface of band 13.
The two ends of pressure strip 16 are the same with the connected mode of band 13, now its concrete connected mode are described as follows:
Referring to Fig. 8, the end of pressure strip 16 with between band inner peripheral surface 14 for seamlessly transitting.Seamlessly transit and can keep anchor ear to have larger contact-making surface with pipeline, be not easy each other to produce and slide, good fixing effect.
Referring to Fig. 9, on one end of pressure strip 16, be provided with two band braces 161 simultaneously.After 161 bendings of band brace, with crimping plate 16, surround connecting ring 17.Band 13 is located in connecting ring 17.Band 13 with between connecting ring 17 for matched in clearance, make the band 13 can be in the interior movement of connecting ring 17.
Claims (2)
1. a steel-plastics composite pipe heated jig, it is characterized in that, comprise heating arrangements and clamping device, described heating arrangements comprises Electromagnetic Heating ring and Electromagnetic Heating ring Drive and Control Circuit, described Electromagnetic Heating ring comprises insulation crust and is positioned at the magnet exciting coil of described shell, magnet exciting coil is electrically connected with described Electromagnetic Heating ring Drive and Control Circuit, and clamping device comprises two anchor ears and makes that two anchor ears axially draw close axially draws close structure, the inner peripheral surface of described band is provided with the flexure strip of domes, described anchor ear also comprises the pressure strip on described band by flexure strip resiliency supported, described pressure strip is provided with band brace, band brace and pressure strip surround connecting ring, band is located in described connecting ring, flexure strip is fixed together with pressure strip, and flexure strip is connected to together with band, and band can move in described connecting ring, described Electromagnetic Heating ring comprises the first Electromagnetic Heating arc plate being positioned on same circumference, the second Electromagnetic Heating arc plate and the 3rd Electromagnetic Heating arc plate, circumferential one end of the first Electromagnetic Heating arc plate is hinged with circumferential one end of the second Electromagnetic Heating arc plate, the circumferential other end of the second Electromagnetic Heating arc plate is hinged with circumferential one end of the 3rd Electromagnetic Heating arc plate, the circumferential other end of the 3rd Electromagnetic Heating arc plate is provided with the second folding structure with between the circumferential other end of the first Electromagnetic Heating arc plate, described the second folding structure comprises the gib head being arranged on the 3rd Electromagnetic Heating arc plate, be hinged on the handle on the first Electromagnetic Heating arc plate and be hinged on the clasp that the same gib head on handle matches, the described structure of axially drawing close has two at least, described two anchor ears are respectively front anchor ear and rear anchor ear, describedly axially draw close that structure comprises spring, first handle and one end of being hinged on rear anchor ear are hinged on the pull bar on first handle, described spring one end is connected on front anchor ear, the other end of the other end and pull bar links together, and each is axially drawn close between the first handle in structure and disconnects.
2. steel-plastics composite pipe heated jig according to claim 1, is characterized in that, describedly axially draws close structure being circumferentially uniformly distributed along anchor ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222077.4A CN102785361B (en) | 2012-07-02 | 2012-07-02 | Heating clamp for steel-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222077.4A CN102785361B (en) | 2012-07-02 | 2012-07-02 | Heating clamp for steel-plastic composite pipe |
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| Publication Number | Publication Date |
|---|---|
| CN102785361A CN102785361A (en) | 2012-11-21 |
| CN102785361B true CN102785361B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210222077.4A Active CN102785361B (en) | 2012-07-02 | 2012-07-02 | Heating clamp for steel-plastic composite pipe |
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| CN (1) | CN102785361B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626536B (en) * | 2015-02-27 | 2016-03-30 | 吉林钰翎珑钢管钢构制造有限公司 | The hot-melting fixture of multiple tube is manufactured for metal tube plastic lining |
| CN106564173A (en) * | 2016-11-04 | 2017-04-19 | 广州擎天材料科技有限公司 | Thread disassembly device of extruder screw rod for thermosetting powder coating |
| CN106493960B (en) * | 2016-11-23 | 2018-11-23 | 罗贤想 | A kind of steel-plastics composite pipe electromagnetic heating welding fixture |
| CN106768953A (en) * | 2016-12-27 | 2017-05-31 | 桂林电子科技大学 | A kind of piece fixture |
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| CN202685317U (en) * | 2012-07-02 | 2013-01-23 | 浙江双林塑料机械有限公司 | Heating clamp of steel-plastic complex pipe |
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| JPH0726712B2 (en) * | 1991-08-16 | 1995-03-29 | ラスムッセン ジイエムビイエイチ | Hose clip |
| ES2396880B1 (en) * | 2010-10-08 | 2013-11-07 | Grupo Mikalor S.L. | CLAMP FOR PREMONTAGE. |
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|---|---|---|---|---|
| US1627288A (en) * | 1922-02-02 | 1927-05-03 | Kurkowski Joseph | Apparatus for joining or connecting pipes |
| US1894835A (en) * | 1928-09-13 | 1933-01-17 | Frank H Smith | Method of and apparatus for joining pipes |
| US3668766A (en) * | 1970-11-27 | 1972-06-13 | Ciba Geigy Corp | Pipe coupling device |
| US4178668A (en) * | 1978-01-06 | 1979-12-18 | Leroy George | Pipe tool |
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| CN102785361A (en) | 2012-11-21 |
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Address after: Hangzhou City, Zhejiang province 311100 Linping Yuhang Economic Development Zone No. 111 Tian He Lu Patentee after: Zhejiang two woods machinery limited company Address before: Hangzhou City, Zhejiang province 311100 Yuhang Economic Development Zone No. 111 Tian He Lu Patentee before: Zhejiang Shuanglin Plastic Machinery Co., Ltd. |
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