CN206943668U - A kind of exposed rear cloth heating wire electric melting pipe fittings - Google Patents
A kind of exposed rear cloth heating wire electric melting pipe fittings Download PDFInfo
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- CN206943668U CN206943668U CN201720846498.2U CN201720846498U CN206943668U CN 206943668 U CN206943668 U CN 206943668U CN 201720846498 U CN201720846498 U CN 201720846498U CN 206943668 U CN206943668 U CN 206943668U
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- heating wire
- embedding groove
- line embedding
- pipe fittings
- exposed
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Abstract
The utility model discloses a kind of exposed rear cloth heating wire electric melting pipe fittings, including body, located at the heating wire of inboard wall of tube body, expose body and positioned at the peep hole and terminals at body both ends, binding post is provided with inside terminals, binding post is connected with heating wire, line embedding groove is offered in body vertically, the length direction of line embedding groove is helically extended, the A/F of line embedding groove is less than the diameter of heating wire, heating wire is connected in line embedding groove, because the A/F of line embedding groove is less than the diameter of heating wire, heating wire can be firmly stuck in line embedding groove, avoid heating wire mobile and abjection when being welded with tubing plugging in fitting and heating；And the circumference section of heating wire is exposed and be not higher than inner surface of tube body, the tubing for reaching assemble welding insertion can directly contact with heating wire, and guarantee is welded out heating wire and do not shifted, and ensure welding quality.
Description
Technical field
Plastic pipe field is the utility model is related to, more particularly to a kind of exposed rear cloth heating wire electric melting pipe fittings.
Background technology
The construction of engineering plastics pipe, Electric Melting Technology will be generally used, it is converted into electric energy by electric-heating-wire-heating
Heat energy, the inwall of plastic pipe and the outer wall of pipeline is set to be melted in one piece at high temperature, so as into being integral.
China Patent No. ZL200820050218.8 discloses a kind of fast electric melting pipe fittings, including pipeline, pipeline section, electric-fusion
Head, heating wire, spacing collar and safety device, plastics pipeline section wall inwall set heating wire, pipeline section outer wall are provided with electric-fusion
Head, heating wire are connected by electric fusion joint with electro-fusion welding machine.
In the prior art, as shown in Figure 3 and Figure 4, spiral line embedding groove 6 is convexly equipped with body 1, heating wire 2 is put
In in line embedding groove 6, in producing and constructing transportation, because the width of line embedding groove is larger, heating wire and line embedding groove can be caused
Between contact loosen, when external pipe fitting inserts, should be section in the circumference of heating wire and be higher than inner surface of tube body, heating wire can be caused
It is extruded and deviates from out of line embedding groove, cause heating wire skewness in body, so as to causes to melt journey in body in electric smelting
Spend uneven so that pipe fitting connects loosely, has a strong impact on the quality of connection of pipe-line system.
Utility model content
The purpose of this utility model be to provide it is a kind of it is exposed after cloth heating wire electric melting pipe fittings, the line embedding groove in its body has
The stable advantage for blocking heating wire.
Above-mentioned technical purpose of the present utility model technical scheme is that：
It is a kind of it is exposed after cloth heating wire electric melting pipe fittings, including body, the heating wire located at inboard wall of tube body, expose body and position
Peep hole and terminals in body both ends, the terminals inside are provided with binding post, and the binding post is connected with heating wire, institute
State and offer line embedding groove in body vertically, the length direction of the line embedding groove is helically extended, and the line embedding groove is opened
Mouth width is less than the diameter of heating wire, and the heating wire is connected in line embedding groove.
By using such scheme, when by heating wire in body, first opening is cut out along spiral shape in body
Width is less than the line embedding groove of heating wire diameter, then heating wire is sticked into line embedding groove, because the A/F of line embedding groove is less than electricity
The diameter of heated filament, so as to which heating wire is firmly stuck in line embedding groove, avoid heating wire with tubing plugging in fitting and add
Mobile and abjection during thermal weld.
As a kind of improvement of the present utility model, in the circumference that the heating wire is formed between section and inner surface of tube body
Distance be not more than heating wire radius size.
By using such scheme, when in the circumference that heating wire is formed section less than inner surface of tube body and between the two away from
During from radius size more than heating wire, it is unfavorable for heating wire and is used for heat caused by heating to melt inboard wall of tube body upper surface
Material, also it is unfavorable for heating wire and is used for the heat sent to melt the material on the pipe fitting outer wall of insertion；Formed when heating wire
When the distance of section higher than inner surface of tube body and between the two is more than the radius size of heating wire in circumference, heating wire is in body
What is set is too outer, and easily abjection, is unfavorable for heating wire and is stably fixed in body.
As a kind of improvement of the present utility model, section is put down with inner surface of tube body in the circumference that the heating wire is formed
Together.
By using such scheme, the circumference section of heating wire is exposed and is not higher than inner surface of tube body, reaches assemble welding
The tubing of insertion can directly contact with heating wire, ensure that the heating wire of weld does not shift, and ensure welding quality.
As a kind of improvement of the present utility model, the opening both sides protrusion relatively of the cross section of the line embedding groove forms clamping
End, the heating wire partial denudation is between joint end.
By using such scheme, joint end can be by heating wire stuck fast so that heating wire stabilization is placed in rule
In groove.
As a kind of improvement of the present utility model, the bottom of the cross section of the line embedding groove is bonded completely with heating wire.
By using such scheme, when heating wire heating power, heat can be passed more efficiently caused by heating wire
It is handed to inboard wall of tube body and completes the connection that pipeline is realized in melting, improves certain operating efficiency.
As a kind of improvement of the present utility model, the middle inside of the body is provided with spacing collar.
By using such scheme, when in external pipe fitting insertion tube body, can be connected to axially on the end face of spacing collar,
It is pre-positioned so that external pipe fitting is realized, avoids external pipe fitting from being moved axially with body when melting and connecting, cause to influence
The quality of connection of melting junction.
In summary, the utility model has the advantages that：
The 1st, the A/F of line embedding groove is set smaller than to the diameter of heating wire, heating wire is connected in line embedding groove
Afterwards, heating wire can be firmly stuck in line embedding groove, avoids heating wire and welding time shift with tubing plugging in fitting and heating
Dynamic and abjection；The opening both sides of the cross section of line embedding groove are relatively prominent to form joint end, heating wire partial denudation in joint end it
Between, joint end can be by heating wire stuck fast so that heating wire is stable to be placed in line embedding groove；The bottom of the cross section of line embedding groove
Portion is bonded completely with heating wire, and when heating wire heating power, heat can more efficiently be transferred to pipe caused by heating wire
Internal wall completes the connection that pipeline is realized in melting, improves certain operating efficiency；
2nd, section and the distance between inner surface of tube body are big no more than the radius of heating wire in the circumference that heating wire is formed
It is small, when the distance of section less than inner surface of tube body and between the two is more than the radius size of heating wire in the circumference that heating wire is formed
When, it is unfavorable for the material that heat caused by heating is used for melting inboard wall of tube body upper surface by heating wire, being also unfavorable for heating wire will
The heat sent is used for melting the material on the pipe fitting outer wall of insertion；When section is higher than table in body in the circumference that heating wire is formed
Face and when distance between the two is more than the radius size of heating wire, heating wire is set too outer in body, is unfavorable for electricity
Heated filament is stably fixed in body；Section is concordant with inner surface of tube body in the circumference that heating wire is formed, and the circumference of heating wire is cut
Face is exposed and is not higher than inner surface of tube body, and the tubing for reaching assemble welding insertion can directly contact with heating wire, facilitate heating wire
Simultaneously by the outer wall of heat transfer caused by energization to inboard wall of tube body and external pipe fitting, ensure that the heating wire of weld does not move
Position, ensure welding quality.
Brief description of the drawings
Fig. 1 is a kind of sectional view of exposed rear cloth heating wire electric melting pipe fittings；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is a kind of sectional view of electric melting pipe fittings in the prior art；
Fig. 4 is the enlarged drawing of B in Fig. 3.
In figure, 1, body；2nd, heating wire；3rd, peep hole；4th, terminals；5th, binding post；6th, line embedding groove；7th, joint end；8、
Spacing collar.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment：
Referring to Fig. 1, a kind of exposed rear cloth heating wire electric melting pipe fittings, including body 1 made of PE plastics, the both ends of body 1
Symmetrically expose and be provided with peep hole 3 and terminals 4, binding post 5 made of metal are connected with terminals 4.
With reference to Fig. 2, offer line embedding groove 6 vertically in body 1, heating wire 2 is connected with line embedding groove 6, in line embedding groove 6
Cut out by special cutter, the bottom of the cross section of line embedding groove 6 is circular arc, and the opening both sides of the cross section of line embedding groove 6 are relative
Prominent to form joint end 7, the A/F formed between joint end 7 is less than the diameter of heating wire 2, and heating wire 2 is in rule
To be forced while groove 6 is molded by special equipment in press-in line embedding groove 6 so that the bottom of line embedding groove 6 is bonded completely with heating wire 2,
And by the clamping of joint end 7, avoid the mobile and abjection when being welded with tubing plugging in fitting and heating of heating wire 2.
And when heating wire 2 is connected in line embedding groove 6, section and the inner surface of body 1 in the circumference that heating wire 2 is formed
The distance between be not more than the radius size of heating wire 2, in the present embodiment, section and body 1 in the circumference that heating wire 2 is formed
Inner surface is concordant, makes the circumference section of heating wire 2 exposed and is not higher than the inner surface of body 1, when insertion needs to connect in body 1
External pipe fitting when, heating wire 2 will not be squeezed out line embedding groove 6, and the lateral surface of heating wire 2 can be simultaneously outer with external pipe fitting
Wall abuts, and facilitates heating wire 2 to make simultaneously by heat transfer caused by energization to the outer wall of the inwall of body 1 and external pipe fitting
Obtain both while melt realization and quickly connect, guarantee is welded out heating wire and do not shifted, guarantee welding quality.
Annular groove is further opened with the middle inside position of body 1, spacing collar 8 is connected with annular groove, when external pipe fitting inserts
When in body 1, it can be connected on the end face of spacing collar 8 axially so that external pipe fitting is realized and is pre-positioned, and avoids external pipe fitting
Moved axially with body 1 when melting and connecting, cause the quality of connection that have impact on melting junction.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (6)
1. it is a kind of it is exposed after cloth heating wire electric melting pipe fittings, including body (1), the heating wire (2) located at body (1) inwall, expose
Body (1) is simultaneously provided with binding post inside the peep hole (3) and terminals (4) at body (1) both ends, the terminals (4)
(5), the binding post (5) is connected with heating wire (2), and line embedding groove (6), the rule are offered vertically in the body (1)
The length direction of groove (6) is helically extended, it is characterised in that the A/F of the line embedding groove (6) is less than heating wire (2)
Diameter, the heating wire (2) is connected in line embedding groove (6).
Cloth heating wire electric melting pipe fittings after 2. one kind according to claim 1 is exposed, it is characterised in that the heating wire (2)
The distance between section and body (1) inner surface are not more than the radius size of heating wire (2) in the circumference formed.
Cloth heating wire electric melting pipe fittings after 3. one kind according to claim 2 is exposed, it is characterised in that the heating wire (2)
Section is concordant with body (1) inner surface in the circumference formed.
A kind of 4. exposed rear cloth heating wire electric melting pipe fittings according to claim 1 or 3, it is characterised in that the line embedding groove
(6) the opening both sides of cross section are relatively prominent to form joint end (7), heating wire (2) partial denudation in joint end (7) it
Between.
Cloth heating wire electric melting pipe fittings after 5. one kind according to claim 4 is exposed, it is characterised in that the line embedding groove (6)
The bottom of cross section be bonded completely with heating wire (2).
Cloth heating wire electric melting pipe fittings after 6. one kind according to claim 1 is exposed, it is characterised in that the body (1)
Middle inside is provided with spacing collar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846498.2U CN206943668U (en) | 2017-07-13 | 2017-07-13 | A kind of exposed rear cloth heating wire electric melting pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846498.2U CN206943668U (en) | 2017-07-13 | 2017-07-13 | A kind of exposed rear cloth heating wire electric melting pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943668U true CN206943668U (en) | 2018-01-30 |
Family
ID=61369541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846498.2U Active CN206943668U (en) | 2017-07-13 | 2017-07-13 | A kind of exposed rear cloth heating wire electric melting pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361231A (en) * | 2021-01-13 | 2021-02-12 | 浙江大学 | Electric melting pipe fitting with self-sensing intelligent monitoring function and machining and monitoring method thereof |
-
2017
- 2017-07-13 CN CN201720846498.2U patent/CN206943668U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361231A (en) * | 2021-01-13 | 2021-02-12 | 浙江大学 | Electric melting pipe fitting with self-sensing intelligent monitoring function and machining and monitoring method thereof |
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