CN209430935U - A kind of hot melt pipe fitting - Google Patents
A kind of hot melt pipe fitting Download PDFInfo
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- CN209430935U CN209430935U CN201822187588.2U CN201822187588U CN209430935U CN 209430935 U CN209430935 U CN 209430935U CN 201822187588 U CN201822187588 U CN 201822187588U CN 209430935 U CN209430935 U CN 209430935U
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- wall
- tube
- support
- heater strip
- connector
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Abstract
The utility model discloses a kind of hot melt pipe fittings, including tube body, set on the intracorporal inner tube of pipe and set on the support tube of inner tube；Tube body has the cladding section and welding section being distributed from inside to outside along axial direction, the outer wall circumferential direction of inner tube is convexly equipped with interconnecting piece, interconnecting piece is connect with the inner wall of welding section, there is bell and spigot between the inner wall of welding section and the outer wall of inner tube, the inner wall of welding section and the outer wall of inner tube are embedded with heater strip, the outer wall of tube body, which is set to, connector, and heater strip is connect with connector, and the outer wall of support tube and the inner wall of inner tube connect；The material of support tube is memorial alloy, and support tube includes at least two support rings, multiple support arms and multiple supporting networks, and support arm is set between adjacent supports ring, and supporting network is set between adjacent support arm.Pushing out ring and support arm provide certain support force, and in fusion process, the plastics of melting can be embedded in pipe fitting by the aperture of supporting network, the supporting network of expansion, become an entirety with pipe fitting, improve the intensity of weld.
Description
Technical field
The utility model belongs to tubing technical field, and in particular to a kind of hot melt pipe fitting.
Background technique
Plastic tube either plastic/steel composite pipe is generally by by after plastic heating to molten condition, then carries out molten welding,
First is that grafting after hot melt, second is that in electric smelting after first grafting；The first welding process easily shifts in operation, is applicable in more
In the plastic tube welding of small diameter tube；Second welding process needs to bury heater strip in the tube in advance, by heater strip by plastics
Melting, then cooled and solidified, but during welding, the adhesive force between the pipe fitting and tubing of molten state is inadequate, causes to connect
Intensity is weaker, reduces the connectivity and intensity of junction.
Utility model content
The purpose of this utility model is that: deficiency in the prior art is solved, a kind of hot melt pipe fitting is provided, the hot melt pipe fitting
Using double hot melting ways, it is equipped with memorial alloy support ring in pipe fitting, in fusion process, radial support is improved for pipe fitting
Power increases the adhesive force between pipe fitting and tubing.
To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of hot melt pipe fitting, including tube body, set
In the intracorporal inner tube of the pipe and set on the support tube of said inner tube；
The tube body has the cladding section and welding section being distributed from inside to outside along axial direction, the outer wall circumferential direction projection of said inner tube
Have interconnecting piece, the interconnecting piece is connect with the inner wall of the welding section, the outer wall of the inner wall of the welding section and said inner tube it
Between there is bell and spigot, the inner wall of the welding section and the outer wall of said inner tube be embedded with heater strip, and the outer wall of the tube body is set to
There is connector, the heater strip is connect with the connector, and the outer wall of the support tube and the inner wall of said inner tube connect；
The material of the support tube be memorial alloy, the support tube include at least two support rings, multiple support arms and
Multiple supporting networks, the support arm are set between the adjacent support ring, and the supporting network is set between the adjacent support arm.
Further, the lateral wall of the support arm is recessed fluted, and the inner wall of said inner tube is convexly equipped with convex block, described convex
Block is arranged in the groove.
Further, the inner wall of the cladding section is equipped with multiple sealing rings.
Further, the aperture of the supporting network is 1-2cm.
Further, the heater strip includes the first heater strip and the second heater strip, and the connector includes the first connection
Head and the second connector, first heater strip are connect with first connector, and second heater strip and described second connects
Connector connection, first heater strip are embedded in the inner wall of the welding section, and second heater strip is embedded in said inner tube
Outer wall.
Further, second connector includes the conductive column, limited post and spring of inner hollow, the tube body it is outer
Wall is equipped with the first accommodation groove, and the conductive column is set to first accommodation groove, and the interconnecting piece of said inner tube is recessed with the second accommodating
Slot, one end of the spring are fixed at the slot bottom of second accommodation groove, and the limited post sliding is set to second accommodating
Slot, the bottom of the limited post are connect with the spring, and the first accommodating trench bottom is provided with through-hole, the through-hole with it is described
The connection of second accommodation groove, the limited post are equipped with elastic sheet metal, the inner wall edge of the conductive column far from one end of the spring
Multiple limiting slots are axially recessed with, the elastic sheet metal and limiting slot cooperate, to limit the limited post.
By adopting the above-described technical solution, the beneficial effects of the utility model are:
The hot melt pipe fitting of the utility model includes tube body, inner tube and the support tube being arranged in inner tube, and inner tube is arranged in pipe
The welding section of body, forms welding bell and spigot between tube body and inner tube, support tube is arranged in inner tube, in fusion process, will manage
Material is inserted into bell and spigot, makes plastic molten melt by the heating of heater strip, meanwhile, the support tube made of memorial alloy is heating up
Under conditions of, support ring is radially expanded, and certain support force is provided to inner tube, so that the outer wall of inner tube is tightly attached on tubing, is made
The connection of inner tube and tubing is closer；And the support tube in the utility model includes support ring, support arm and supporting network, support
Ring and support arm provide certain support force, and in fusion process, the plastics of melting can pass through the aperture of supporting network, the branch of expansion
Support net is embedded in pipe fitting, is become an entirety with pipe fitting, is improved the intensity of weld.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the schematic cross-sectional view of hot melt pipe fitting in embodiment 1；
Fig. 2 is the schematic front view of the support tube of the utility model；
Fig. 3 is the left view schematic diagram of the support tube of the utility model；
Fig. 4 is the schematic cross-sectional view in the direction A-A in Fig. 1；
Fig. 5 is the enlarged diagram of part B in Fig. 1；
Fig. 6 is that the amplification of C portion in Fig. 4 is intended to；
Fig. 7 is the schematic cross-sectional view of the tempreature bulb of embodiment 2；
Fig. 8 is the enlarged diagram of the part E in Fig. 7；
Fig. 9 is the enlarged diagram of the part F in Fig. 8；
Figure 10 is the enlarged diagram of the part D in Fig. 6；
Appended drawing reference: 1- tube body, 11- coat section, 12- welding section, 13- bell and spigot, 14- sealing ring, the accommodating of 15- first
Slot, 16- through-hole, 2- inner tube, 21- interconnecting piece, the second accommodation groove of 211-, 22- convex block, 3- support tube, 31- support ring, 32- support
Arm, 321- groove, 33- supporting network, 4- heater strip, the first heater strip of 41-, the second heater strip of 42-, 5- connector, 51- first connect
Connector, the second connector of 52-, 521- conductive column, 522- limited post, 523- spring, 524- elastic sheet metal, 525- limiting slot.
Specific embodiment
Embodiment 1:
A kind of hot melt pipe fitting, including tube body 1, the inner tube 2 in the tube body 1 and set on the support tube of said inner tube 2
3；The material of support tube 3 is memorial alloy, which can deform under the induction of temperature, so that support tube 3 is along diameter
To outside expansion.
The tube body 1 has the cladding section 11 and welding section 12 being distributed from inside to outside along axial direction, in the inner wall of cladding section 11
It is provided with sealing ring 14, the outer wall circumferential direction of said inner tube 2 is convexly equipped with interconnecting piece 21, the farthest one end of the off-axis heart of the interconnecting piece 21
It is fixedly connected with the inner wall of the welding section 12, there is socket joint between the inner wall of the welding section 12 and the outer wall of said inner tube 2
Mouth 13, is bell and spigot 13 in the two sides of interconnecting piece 21, as shown in the picture, in the inner wall and said inner tube 2 of the welding section 12
Outer wall be embedded with heater strip 4, the outer wall of the tube body 1, which is set to, connector 5, and the heater strip 4 connects with the connector 5
It connects, connector 5 is connect with external fusion splicing devices, provides electric energy for heater strip 4, support tube 3 is arranged in inner tube 2, described
The outer wall of support tube 3 is connect with the inner wall of said inner tube 2；
The support tube 3 includes two support rings 31, multiple support arms 32 and multiple supporting networks 33, and two support rings 31 are two
End, support arm 32 are axially arranged between two support rings 31, and support arm 32 is 4, and adjacent branch is arranged in supporting network 33
Between brace 32, support arm 32, support ring 31 and the combination of supporting network 33 form support tube 3, relatively have preferably, outside support arm 32
Side wall recessed fluted 321, the inner wall of said inner tube 2 are convexly equipped with convex block 22, and the convex block 22 is arranged in the groove 321；
Convex block 22 and groove 321 cooperate, positioning support pipe 3, while but also support tube 3 and inner tube 2 are completely embedded；In the present embodiment
In, the aperture of the supporting network 33 is 1cm.
In the present embodiment, the internal diameter of the cladding section 11 of tube body 1 is slightly larger than the internal diameter of welding section 12, after welding, coats section
11 are coated on the outer wall of tubing, extend the range that pipe fitting is connected with tubing, and in fusion process, cladding section 11 provides for tubing
Certain support force, while can prevent tubing from deviateing.
When using the hot melt pipe fitting of the utility model, by being inserted into bell and spigot 13 for pipe fitting, then by connector 5 and melt
Equipment connection is connect, heater strip 4 is made to be powered, heating of plastic, with the heating of heater strip 4, plastic pipe, inner tube 2 and tube body 1 are molten
The outer wall for connecing section 12 starts to melt, and when melting beginning or before starting, memorial alloy support tube 3 expands outward, provides for inner tube 2
Certain support force makes inner tube 2 be tightly attached to the inner wall of tubing, increases connectivity, with the continuous expansion of support tube 3, molten state
Plastics overflowed from supporting network 33 so that supporting network 33 is embedded in the plastics of molten state, after welding section 12 is cooling, supporting network
33, support ring 31 and support arm 32 is all or part of is embedded in welding section 12, makes support tube 3 and inner tube 2 become one
Whole, support tube 3 provides certain support force for weld, increases the intensity of junction.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, the heater strip 4 includes the first heater strip 41 and the second heating
Silk 42, the connector 5 include the first connector 51 and the second connector 52, and first heater strip 41 is connect with described first
First 51 connection, second heater strip 42 are connect with second connector 52, and first heater strip 41 is embedded in described molten
The inner wall of section 12 is connect, second heater strip 42 is embedded in the outer wall of said inner tube 2.During heating, the first heater strip
41 form the access of a closure with welder, and the second heater strip 42 forms the access of another closure with welder, the
One heater strip 41 and the second heater strip 42 work independently.In fusion process, the second heater strip 42 can be first set to work, so that inner tube
2 heatings after inner tube 2, which is warming up to support tube 3, starts the temperature of expansion, then make the first heater strip 41 work, so that in welding
Initial stage, support tube 3 can also provide the support force of any for inner tube 2.
Embodiment 3: on the basis of embodiment 2, in the present embodiment, second connector 52 includes inner hollow
The outer wall of conductive column 521, limited post 522 and spring 523, the tube body 1 is equipped with the first accommodation groove 15, and the conductive column 521 is set
In first accommodation groove 15, the interconnecting piece 21 of said inner tube 2 is recessed with the second accommodation groove 211, and one end of the spring 523 is solid
Surely it is set to the slot bottom of second accommodation groove 211, the surface of spring 523 is coated with insulating coating, and the sliding of limited post 522 is set
In second accommodation groove 211, the bottom of the limited post 522 is connect with the spring 523, the second heater strip 42 and limited post
522 connections, limited post 522 are made of an electrically conducting material, and 15 bottom of the first accommodation groove is provided with through-hole 16, the through-hole 16
It is connected to second accommodation groove 211, the top of limited post 522 can be sliding from the second accommodation groove 211 under the action of spring 523
Enter into the first accommodation groove 15, the limited post 522 is equipped with elastic sheet metal 524 far from one end of the spring 523, described to lead
The inner wall of electric column 521 is recessed with multiple limiting slots 525 along axial direction, is provided with multiple limiting slots 525 in the axial direction as ring-type, limits
The section of slot 525 is triangle, as shown in the picture；The diameter of limiting slot 525 is greater than the diameter of limited post 522, through-hole 16, works as bullet
Property sheet metal 524 in limiting slot 525 when, be in compressive state so that 523, spring always with the cell wall of limiting slot 525 connect
It connects, is cooperated by elastic sheet metal 524 and limiting slot 525, so that limited post 522 can only be moved upwards and cannot be moved downward.
In the present embodiment, before using the hot melt pipe fitting, inner tube 2 and tube body 1 are in discrete state, when in use, will
Inner tube 2 is put into tube body 1, and during being put into, under the effect of external force, limit is pressed into the second accommodation groove 211,
It is that limited post 522 loses the constraint of external force when limited post 522 reaches at through-hole 16, under the action of spring 523, limited post 522
Top slide into the first accommodation groove 15, elastic sheet metal 524 snaps onto limiting slot 525, so that limited post 522 and conduction
Column 521 realizes the connection that is powered.In fusion process, with the expansion of support tube 3, so that inner tube 2 compresses outward, when compressing,
Limited post 522 moves upwards, so that elastic sheet metal 524 rises in a limiting slot 525, is fastened on a limiting slot 525
In, under the action of limiting slot 525, limited post 522 cannot decline again；In spring 523, elastic sheet metal 524 and limiting slot 525
Collective effect under, can prevent inner tube 2 inwardly bounce back, improve welding effect.When should be noted, in the hot melt of design the present embodiment
When pipe fitting, elastic force, the elastic force of elastic sheet metal 524 and the deformation force of support tube 3 of spring 523 need to be considered, so that elastic
Sheet metal 524 can be contacted adequately with conductive column 521, and support tube 3, during expansion, the power that support tube 3 generates is wanted
Much larger than spring 523 and the elastic force of elastic sheet metal 524, limited post 522 is easier slided outward.
Claims (6)
1. a kind of hot melt pipe fitting, it is characterised in that: including tube body (1), the inner tube (2) being set in the tube body (1) and be set to institute
State the support tube (3) of inner tube (2)；
The tube body (1) has the cladding section (11) and welding section (12) that are distributed from inside to outside along axial direction, said inner tube (2) outside
Wall circumferential direction is convexly equipped with interconnecting piece (21), and the interconnecting piece (21) connect with the inner wall of the welding section (12), the welding section
(12) there are bell and spigot (13) between the outer wall of inner wall and said inner tube (2), the inner wall of the welding section (12) and described interior
The outer wall of pipe (2) is embedded with heater strip (4), and the outer wall of the tube body (1), which is set to, to be had connector (5), the heater strip (4) and institute
Connector (5) connection is stated, the outer wall of the support tube (3) is connect with the inner wall of said inner tube (2)；
The material of the support tube (3) is memorial alloy, and the support tube (3) includes at least two support rings (31), Duo Gezhi
Brace (32) and multiple supporting networks (33), the support arm (32) set between the adjacent support ring (31), the supporting network
(33) it is set between the adjacent support arm (32).
2. hot melt pipe fitting according to claim 1, it is characterised in that: the lateral wall of the support arm (32) is recessed fluted
(321), the inner wall of said inner tube (2) is convexly equipped with convex block (22), and the convex block (22) is arranged in the groove (321).
3. hot melt pipe fitting according to claim 1, it is characterised in that: the inner wall of cladding section (11) is equipped with multiple close
Seal (14).
4. hot melt pipe fitting according to claim 1, it is characterised in that: the aperture of the supporting network (33) is 1-2cm.
5. hot melt pipe fitting according to claim 1, it is characterised in that: the heater strip (4) includes the first heater strip (41)
With the second heater strip (42), the connector (5) includes the first connector (51) and the second connector (52), first heating
Silk (41) is connect with first connector (51), and second heater strip (42) connect with second connector (52), institute
The inner wall that the first heater strip (41) is embedded in the welding section (12) is stated, second heater strip (42) is embedded in said inner tube
(2) outer wall.
6. hot melt pipe fitting according to claim 5, it is characterised in that: second connector (52) includes inner hollow
The outer wall of conductive column (521), limited post (522) and spring (523), the tube body (1) is equipped with the first accommodation groove (15), described to lead
Electric column (521) is set to first accommodation groove (15), and the interconnecting piece (21) of said inner tube (2) is recessed with the second accommodation groove (211),
One end of the spring (523) is fixed at the slot bottom of second accommodation groove (211), and limited post (522) sliding is set to
The bottom of second accommodation groove (211), the limited post (522) is connect with the spring (523), first accommodation groove
(15) bottom is provided with through-hole (16), and the through-hole (16) is connected to second accommodation groove (211), the limited post (522)
One end far from the spring (523) is equipped with elastic sheet metal (524), and the inner wall of the conductive column (521) is recessed with along axial direction
Multiple limiting slots (525), the elastic sheet metal (524) and limiting slot (525) cooperate, to limit the limited post (522).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822187588.2U CN209430935U (en) | 2018-12-25 | 2018-12-25 | A kind of hot melt pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822187588.2U CN209430935U (en) | 2018-12-25 | 2018-12-25 | A kind of hot melt pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430935U true CN209430935U (en) | 2019-09-24 |
Family
ID=67973497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822187588.2U Active CN209430935U (en) | 2018-12-25 | 2018-12-25 | A kind of hot melt pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412337A (en) * | 2020-04-23 | 2020-07-14 | 林仲谋 | Environment-friendly PE pipe that convenient concatenation was used |
| CN112856061A (en) * | 2020-12-30 | 2021-05-28 | 浙江大学 | Phase-change material pouring heat-preservation sealing pipeline joint convenient to disassemble and assemble and method thereof |
-
2018
- 2018-12-25 CN CN201822187588.2U patent/CN209430935U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412337A (en) * | 2020-04-23 | 2020-07-14 | 林仲谋 | Environment-friendly PE pipe that convenient concatenation was used |
| CN112856061A (en) * | 2020-12-30 | 2021-05-28 | 浙江大学 | Phase-change material pouring heat-preservation sealing pipeline joint convenient to disassemble and assemble and method thereof |
| CN112856061B (en) * | 2020-12-30 | 2022-01-18 | 浙江大学 | Phase-change material pouring heat-preservation sealing pipeline joint convenient to disassemble and assemble and method thereof |
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Address after: 610400 Guangdong Road, Chengdu-Aba Industrial Development Zone, Jintang County, Chengdu City, Sichuan Province Patentee after: Sichuan xinghuiteng Group Co., Ltd Address before: 610400 Guangdong Road, Chengdu-Aba Industrial Development Zone, Jintang County, Chengdu City, Sichuan Province Patentee before: CHENGDU HUITENG PLASTIC Co.,Ltd. |