CN201246569Y - Hot melt spigot-and-socket specific pipe fittings for metallic plastic-lining pipe - Google Patents
Hot melt spigot-and-socket specific pipe fittings for metallic plastic-lining pipe Download PDFInfo
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- CN201246569Y CN201246569Y CNU2007201872281U CN200720187228U CN201246569Y CN 201246569 Y CN201246569 Y CN 201246569Y CN U2007201872281 U CNU2007201872281 U CN U2007201872281U CN 200720187228 U CN200720187228 U CN 200720187228U CN 201246569 Y CN201246569 Y CN 201246569Y
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- lining pipeline
- thermofusible spigot
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Abstract
The utility model discloses a special pipe fitting of hot-melt socket jointing for metal plastic lined pipes, which comprises a pipe body, at least one end of the pipe body is equipped with an extension segment integrated with the pipe body, and the length of the extension segment is larger or equal to the expansion elongation of an plastic lined pipe in the metal plastic lined pipe in condition of the maximum service temperature difference. When using the utility model, a weak segment formed by the plastic lined pipe expanding to elongate due to thermal expansion is naturally disposed in the pipe fitting, and the extension segment of the pipe fitting can compensate the expanded and elongated segment of the plastic lined pipe for intensity, thereby forming the same pressure resistant intensity and rigidity as that of the pipe fitting. The expanded and elongated segment of the plastic lined pipe is fully disposed in the bearing structure system of the pipe fitting, and simultaneously, exposed weak segments of the plastic lined pipe can not appear at the joint of two ends of the pipe, thereby fundamentally solving the system defects of metal plastic lined pipes and guaranteeing the integral application advantages of the metal plastic lined pipe system.
Description
Technical field
The utility model relates to and a kind ofly is used for supplying water or the pipeline connecting pipe fitting of heating system particularly a kind of thermofusible spigot special pipe fitting of metallic plastic-lining pipeline.
Background technique
The type of water supply, hot duct system mainly contains metallic conduit, plastic pipe and metallic plastic-lining pipeline at present.Wherein metallic conduit is prone in the using process and phenomenon such as drips, leak, run, emit, less use because each tie point is to be threaded.Plastic pipe adopts the thermofusible spigot formula to connect, be fused into one between the adjacent channel, phenomenon such as avoided occurring dripping, leaking, run, emit substantially, and corrosion resistance be strong at the tie point place, but because its rigidity when bright dress is relatively poor, so use occasion is subjected to certain limitation.The metallic plastic-lining pipeline adopts the drawing complex method that aluminum alloy or other metallic conduit are compounded in the formation of plastic pipe surface outside plastic pipe.
The withstand voltage properties of metallic plastic-lining multiple tube is the same with the metallic conduit that is compounded in its outside, and the plastic pipe compressive strength generally is increased to PN1.25.When forming aluminum alloy plastics lined pipe road behind the Al-alloy pipeline outside plastic pipe, compressive strength is PN2.0.The resistance to pressure of pipe joint is taken from tube wall thickness, generally adopts S2.5 level plastic pipe, and compressive strength is PN2.0.Therefore the withstand voltage of integral Al-alloy plastics lined pipe road system is PN2.0.So the metallic plastic-lining pipeline can effectively solve plastic pipe rigidity defect of insufficient when bright dress, realize the light rigidity of pipeline; Ensureing withstand voltage properties and the heat resistance that has improved pipeline integral body under original every physical property of plastic lining pipeline and the chemical property condition again simultaneously.Be highly suitable for high level and skyscraper, the overall structure rigidity of this metallic plastic-lining multiple tube system and system's heat resisting and pressure resisting performance and plastic duct system have had the raising of internal, have obtained popularity at present at home and have applied.
As shown in Figure 1, the thermofusible spigot Placement is adopted in the connection of metallic plastic-lining multiple tube system: at first peel the outer layer metal pipeline 15 of metallic plastic-lining multiple tube off one section metal tube according to the thermofusible spigot length of NBS defined and expose one section plastic lining pipeline; The plastic lining pipeline that exposes of this section and plastic pipe carry out thermofusible spigot and are connected and get final product then.From as can be known above-mentioned, the Placement of metallic plastic-lining multiple tube is identical with the Placement of plastic pipe.Yet this thermoplastic plastic pipe and metallic plastic-lining multiple tube system are stable under the little situation of pipeline medium temperature variation, are not prone to the phenomenon of dripping, leak, run, emitting.If but the medium temperature amplitude of variation will go wrong when bigger, even causes Accident due to quality to take place.Its basic reason is in the metallic plastic-lining multiple tube that outer field metallic conduit is different with the linear expansion coeffcient of plastic lining pipeline, and the linear expansion amount of plastics is bigger, is example with the aluminum alloy, approximately is 7 times of aluminum alloy.Thereby when causing expanding with heat and contract with cold in temperature variation, two ends at the metallic plastic-lining multiple tube, be pipeline and pipe fitting joint, the plastic lining pipeline has one section expansion elongation and exposes outside metallic conduit, and metallic conduit can't wrap up it fully, cover.Aspect the structural strength and compressive strength of whole tubing, the exposed plastic lining pipeline of elongation has formed weak section 10 (see figure 1)s of metallic plastic-lining multiple tube system, at these weakness section 10 the easiest water clocks that occur, even pipe explosion accident.Therefore caused metallic plastic-lining multiple tube system rigidity, compressive strength to reduce to level with plastic lining pipeline system, the overall structure rigidity and the compressive strength advantage of metal piping system will not exist, and become the systematic defect of metallic plastic-lining pipeline yet.
Therefore use existing thermoplasticity pipe fitting to carry out the connection of metal compounded pipe thermofusible spigot and have structural defect, can't ensure the overall performance advantage of metal plastics lined pipe road system.Concentrate on studies and repeatedly practise at the scene through the inventor, design a kind of and metallic plastic-lining multiple tube system adaptive thermofusible spigot pipe joint fully.
The model utility content
(1) technical problem that will solve
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provide a kind of can the assurance system thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of operation rigidity and compressive strength.
(2) technological scheme
For achieving the above object, the utility model adopts following technological scheme:
The thermofusible spigot special pipe fitting of metallic plastic-lining pipeline described in the utility model, comprise body, wherein be provided with lengthening section with its one at least one end of described body, the length of this lengthening section is used expansion elongation under the temperature difference condition more than or equal to the ducted plastic lining pipeline of metallic plastic-lining in maximum.
The two ends of described body are equipped with lengthening section.
End at described body is provided with lengthening section, and another is provided with adaptive link.
The internal diameter of described lengthening section is d3=d0+2 * δ max, and in the formula: d3 is the internal diameter of lengthening section (12), and unit: mm, d0 are the plastic lining externals diameter of pipe, and unit: mm, δ max are the metallic conduit thickests, unit: mm.
Has lead angle with the lengthening section joint in the described body.
The wall thickness of described lengthening section is identical with the wall thickness of body.
The outer surface of described body is provided with the welding deep identification, is provided with the lengthening section sign at described lengthening section and body joint.
Described lengthening section sign is the tag line along the body circumferencial direction.
Described tag line has eye-catching color; Perhaps make by the fluorescent material.
Described tag line is heavy line, fine line, dot and dash line, double dot dash line or dotted line; The shape of described tag line is circular or circular or one section circular arc.
Described lengthening section sign is bulge loop or semicircle bulge loop or the protruding arc along the body circumferencial direction.
Described welding deep identification is arrow or the graduation line along the body axial direction.
The initial position of described arrow or graduation line is at described lengthening section sign place.
Described welding deep identification is the tag line along the body circumferencial direction, and the distance between this tag line and the described lengthening section sign equals the welding degree of depth of national Specification.
Described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
Described tag line is heavy line, fine line, dot and dash line, double dot dash line or dotted line; The shape of described tag line is circular or circular or one section circular arc.
Described welding deep identification is along the bulge loop of body circumferencial direction or semicircle bulge loop or protruding arc.
(3) beneficial effect
The advantage and the good effect of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline described in the utility model are: owing to be provided with lengthening section at the two ends of body, when connecting, the inner lining plastic tube welding section of removing metal outer pipe can not only be inserted thermofusible spigot, and carry out hot melt with pipe fitting and be connected, and the bulk metal plastics lined pipe road that is equivalent to pipe fitting lengthening section length can be inserted in the pipe fitting thereupon.When plastic lining pipeline expanded by heating extended, its elongated portion branch was wrapped by the lengthening section of pipe fitting, thereby this pipe fitting lengthening section can carry out the rigidity reinforcement to liner plastic pipe expansion extension.Like this, the weak section that the plastic lining tube swelling elongation that heat expansion causes forms has been inserted in the middle of the pipe fitting naturally, by the pipe fitting lengthening section plastic lining pipeline section that this expands elongation has been carried out intensity compensation, has formed compressive strength and the rigidity same with pipe fitting.Plastic lining pipeline expansion extension is in the pipe fitting bearing structure system fully, the weak section of plastic lining pipeline that exposes can not appear in the pipe ends joint simultaneously again, fundamentally solve the system defect of metallic plastic-lining pipeline, ensured the overall applicability advantage of metallic plastic-lining pipe-line system.
Description of drawings
When Fig. 1 was to use existing thermofusible spigot pipe fitting connecting tube, the structural representation of quality problems appearred;
Fig. 2 is the structural representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model;
Fig. 3 is the structural representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model when being connected with pipeline;
Fig. 4 represents that the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model is connected with pipeline and expands and is stretched to structural representation when the longest;
Fig. 5 represents first kind of marking structure schematic representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model;
Fig. 6 represents second kind of marking structure schematic representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model;
Fig. 7 represents the third marking structure schematic representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model;
Fig. 8 represents the 4th kind of marking structure schematic representation of the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model.
Among the figure: 1. body; 2. arrow; 3. graduation line; 4. tag line; 5. bulge loop; 6. outer silk; 7. internal thread; 8. lengthening section identifies; 10. weak section; 12. lengthening section; 15. aluminium alloy pipeline.
Embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 2, the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model comprises body 1, body 1 at least one end be provided with lengthening section 12 with its one.The length of this lengthening section 12 is more than or equal to the expansion elongation of the ducted plastic lining pipeline of metallic plastic-lining when maximum is used the temperature difference.Wherein said maximum temperature difference is to determine according to factors such as actual use occasion, pipeline internal mediums.The socket joint pipeline is more smooth and easy in order to use, and can with lengthening section 12 joints lead angle be set in body 1.In order advance to go up the intensity that the step strengthens pipe fitting itself, can lengthening section 12 outside, be provided with and the bulge loop of its one, so just can make the wall thickness of lengthening section identical with the wall thickness of pipe fitting, make the bulk strength of pipe fitting reach unanimity.If the two ends of pipe fitting all are used for connecting tube, then can be equipped with lengthening section 12 at the two ends of body 1.If an end of pipe fitting is used for connecting tube, the other end is used to connect valve, water meter, gas meter etc., then an end at connecting tube is provided with lengthening section, and be provided for connecting the adaptive link of valve, water meter, gas meter etc. at the other end, as outer silk 6 (see figure 3)s, internal thread 7 (see figure 4)s or flange (not shown) etc.With aluminum alloy plastics lined pipe road is example, when maximum uses the temperature difference to be 80 ℃, the maximum free linear expansion amount of aluminum alloy plastics lined pipe road under the normal mounting condition according to different size, getting plastic lining pipe line expansion coefficient is the swell increment calculating parameter, calculate the aluminum alloy lining plastic composited pipe road pairing pipe fitting lengthening section length of each specification, in the foundation relevant national standard, for example, the plastic lining pipeline is the metallic plastic-lining pipeline of polypropylene material, according to the GB/T18742.3-2002 NBS, when the plastic lining pipeline is other class plastics, hot melt connects the degree of depth then according to its corresponding national standards, on the thermofusible spigot formula pipe fitting basis of regulation, it is as follows to design the special pipe fitting data:
Be of a size of example with the dn20 pipe fitting, be calculated as follows:
1, the linear expansion amount of liner PP-R plastic tube
ΔL1＝ΔT×L×α1
In the formula: Δ L1-PP-R moulds pipeline swell increment (mm)
The maximum temperature difference of water in Δ T-pipeline (℃)=90-10=80
L-pipeline rigid support maximum spacing (m), dn20 pipeline L=1.2
α 1-PP-R moulds pipeline expansion coefficient (mm/mk)=0.15
: Δ L1=80 * 1.2 * 0.15=14.4 (mm)
2, outer compound Al-alloy pipe linear expansion amount
ΔL2＝ΔT×L×α2
In the formula: Δ L2-Al-alloy pipe linear expansion amount (mm)
L-pipeline rigid support maximum spacing (m), dn20 pipeline L=1.2
α 2-Al-alloy pipe coefficient of linear expansion (mm/mk)=0.025
: Δ L2=80 * 1.2 * 0.025=2.4 (mm)
3, PP-R moulds the relative Al-alloy pipe linear expansion amount of pipe
ΔL3＝ΔL1-ΔL2
In the formula: Δ L3-PP-R moulds pipe relative Al-alloy pipe linear expansion amount (mm)
Δ L1-PP-R moulds pipeline swell increment (mm)
Δ L2-Al-alloy pipe linear expansion amount (mm)
: Δ L3=14.4-2.4=12 (mm)
4, pipe fitting lengthening section length
L3＝ΔL3/2+c
In the formula: L3-pipe fitting lengthening section length
Δ L3-PP-R moulds pipe relative Al-alloy pipe linear expansion amount (mm)
C-installation surplus (mm) gets c=1
: L3=12/2+1=7 (mm)
5, pipe fitting lengthening section mean inside diameter
d3＝d0+2×δmax
In the formula: d3-pipe fitting lengthening section internal diameter (mm)
D0-PP-R moulds external diameter of pipe (mm), dn20 pipeline d0=20
δ max-Al-alloy pipe thickest (mm), dn20 pipeline δ max=0.65
: d3=20+2 * 0.65=21.3
The pipe fitting lengthening section length and the internal diameter that draw all size of dn20～160 with same computational methods see the following form:
| Sequence number | Nominal outside diameter dn | Pipeline maximum flexibility support interval L | Mould pipeline swell increment Δ L1 | Al-alloy pipe linear expansion amount Δ L2 | Mould the relative Al-alloy pipe linear expansion amount Δ L3 of pipe | Pipe fitting elongated |
Pipe fitting lengthening section mean inside |
| 1 | 20 | 1200 | 14.4 | 2.4 | 12.0 | 7.0 | 21.3 |
| 2 | 25 | 1400 | 16.8 | 2.8 | 14.0 | 8.0 | 26.3 |
| 3 | 32 | 1600 | 19.2 | 3.2 | 16.0 | 9.0 | 33.3 |
| 4 | 40 | 1800 | 21.6 | 3.6 | 18.0 | 10.0 | 41.5 |
| 5 | 50 | 2000 | 24.0 | 4.0 | 20.0 | 11.0 | 51.5 |
| 6 | 63 | 2200 | 26.4 | 4.4 | 22.0 | 12.0 | 64.8 |
| 7 | 75 | 2400 | 28.8 | 4.8 | 24.0 | 13.0 | 77.0 |
| 8 | 90 | 2600 | 31.2 | 5.2 | 26.0 | 14.0 | 92.4 |
| 9 | 110 | 2800 | 33.6 | 5.6 | 28.0 | 15.0 | 112.8 |
| 10 | 125 | 2800 | 33.6 | 5.6 | 28.0 | 15.0 | 128.3 |
| 11 | 160 | 3000 | 36.0 | 6.0 | 30.0 | 16.0 | 164.0 |
As shown in Figure 3 and Figure 4, when using special pipe fitting of the present utility model to connect, with the outer layer metal pipeline of metallic plastic-lining multiple tube, for example aluminium alloy pipeline 15, peel one section Al-alloy pipe off according to the thermofusible spigot length of NBS defined and expose one section plastic lining pipeline 14; The plastic lining pipeline 14 that then this section is exposed carries out thermofusible spigot with special pipe fitting 1 of the present utility model and is connected; When socket joint, the part of aluminium alloy pipeline 15 also is inserted in the special pipe fitting 1, cooperates with pipe fitting lengthening section 12.See Fig. 4, when the medium temperature in the pipe-line system raise, plastic lining pipeline 14 extended because of expansion; At this moment, aluminium alloy pipeline 15 is also thereupon with respect to the 12 outside slippages of pipe fitting lengthening section.When the medium temperature in the pipe-line system reaches the highest, the elongation maximum of plastic lining pipeline 14, at this moment, aluminium alloy pipeline 15 lucky slippages are to the position, edge of pipe fitting lengthening section 12.Like this, aluminium alloy pipeline 15 directly is connected with pipe fitting lengthening section 12, not having does not promptly have the existence of weak section, so the compressive strength of whole tubing has reached the level identical with pipe fitting with rigidity outside independent plastic lining pipeline 14 is exposed in the whole tubing.When the length of pipe fitting lengthening section 12 during greater than the maximum elongation amount of plastic lining pipeline 14, even being stretched to of plastic lining pipeline 14 is the longest, also still some is positioned in the pipe fitting lengthening section 12 aluminium alloy pipeline 15, and connection reliability further improves.
As Fig. 5-shown in Figure 8, in the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline of the present utility model, be provided with lengthening section sign 8 in lengthening section 12 and body 1 joint, be provided with the welding deep identification at pipe fitting 1 outer surface.
Described lengthening section sign 8 can be the tag line along body 1 circumferencial direction.This tag line can be heavy line (see figure 7), fine line, dot and dash line, double dot dash line or dotted line (see figure 5); The shape of described tag line can be circle (seeing Fig. 5, Fig. 6, Fig. 7) or only be a bit of circular arc line (see figure 8).This lengthening section tag line preferably has eye-catching color.Perhaps make by the fluorescent material.Described lengthening section sign 8 is bulge loop or semicircle bulge loop or the protruding arc (not shown)s along body 1 circumferencial direction, and bulge loop in this structure and the welding deep identification or semicircle bulge loop or protruding arc are identical.When the lengthening section of special pipe fitting of the present utility model itself is provided with annulus with its one, not under the extra high situation in required precision, this annulus can become a kind of lengthening section sign.
Welding deep identification in the utility model can be along arrow 2 (see figure 5)s of body 1 axial direction or graduation line 3 (see figure 6)s.At this moment, the length of this arrow 2 or graduation line 3 promptly is the hot melt welding depth value of NBS defined.Such arrow 2 or graduation line 3 can be arranged in any position on the pipe fitting, can measure the hot melt welding depth value of NBS defined.But in conjunction with aforesaid lengthening section sign 8, thereby the pipeline that draws intuitively need be inserted into the depth value in the pipe fitting, preferably the initial position of described arrow 2 or graduation line 3 is arranged on lengthening section and identifies 8 places.Because it is exactly that pipeline need be inserted into the interior depth value of pipe fitting that the length of lengthening section adds the hot melt welding degree of depth.In the attended operation of the pipe-line system of reality, pipeline is alignd with the port of pipe fitting, position (being the top of arrow 2 or graduation line 3) corresponding to the welding deep identification top on the pipe fitting on the pipeline promptly is that pipeline inserts depth location in the pipe fitting, perform mark at this place, during grafting, when the mark of being done on the pipeline is concordant with the pipe fitting port, stop immediately pegging graft.Like this, just guarantee the accurate control of the pipeline inserting depth and the welding degree of depth, thereby guaranteed the reliability that pipe-line system connects, stopped potential safety hazard.
The welding deep identification also can be tag line 4 (see figure 7)s along body 1 circumferencial direction.At this moment, the distance between this tag line 4 and the lengthening section sign 8 equals the welding degree of depth of national Specification.The color of welding deep identification is more eye-catching color such as redness or the color bigger with the pipe fitting contrast preferably, is beneficial to operator's clearly identification easily.The welding deep identification can be made by the fluorescent material, even also can be clear that the position of welding deep identification like this in dim environment.The welding deep identification can also be along bulge loop 5 (see figure 4)s of body 1 circumferencial direction or semicircle bulge loop or protruding arc.At this moment when the welding degree of depth of measuring channel, the pipeline end face directly can be resisted against on the bulge loop 5 or semicircle bulge loop or protruding arc of protrusion, need not estimate accurate aligning welding deep identification position, help further increasing work efficiency, reduce measurement error.In the time need the welding deep identification being set simultaneously at the two ends of same pipe fitting, the welding deep identification of various different structures can use separately, also can be used in combination mutually.For example, two tag lines are set simultaneously; Perhaps at pipe fitting one end tag line is set, the other end is provided with graduation line.Various lengthening section signs and welding deep identification also can be used in combination mutually.
Use and of the present utility modelly carry out according to following step when having lengthening section sign and carrying out being connected of pipe-line system with the special pipe fitting of welding deep identification:
1) at first, the port alignment comparison with interconnected special pipe fitting of needs and pipeline is provided with the insertion depth mark on the pipeline corresponding to the welding deep identification on the pipe fitting.When the welding deep identification is that arrow or graduation line are, insertion depth is marked at corresponding to the top of arrow or graduation line one end of pipe fitting center (promptly near); When welding deep identification during along the tag line of pipe fitting circumferencial direction, insertion depth is marked at corresponding to this tag line position.Promptly this insertion depth labeling indicia has gone out pipeline and has counted the overall length that is inserted in the special pipe fitting from its port.Meanwhile, the welding sounding mark is set identifying 8 places corresponding to lengthening section.On pipeline, distance between described insertion depth mark and the welding sounding mark is the welding degree of depth of NBS defined, die between insertion depth mark and welding sounding mark cover metal tube, the plastic lining pipeline that will expose with hot-melting machine partly carries out hot melt.
2) then, when the welding deep identification on the pipe fitting is when the arrow 2 of body 1 axial direction or graduation line 3 these classes have the line segment of certain-length, with this welding deep identification hot melt; When the welding deep identification on the pipe fitting is sign along the tag line of the circle of body 1 circumferencial direction or circle or circular arc line or bulge loop, semicircle bulge loop, protruding arc one class, with the part pipe fitting hot melt between lengthening section sign 8 and the welding deep identification;
3) again after, in pipe fitting, insert the pipeline have heat-fused portion with heat-fused portion, when the insertion depth mark on the pipeline is concordant with the port of pipe fitting, stop insertion.
4) last, on pipeline and the pipe fitting the part of hot melt can link together by hot melt.
Thermofusible spigot special pipe fitting of the present utility model on the existing pipe fitting length basis of having extended, connects desired welding deep identification with different size pipe fitting hot melt and is labeled on the pairing pipe fitting surface, and indicated the lengthening section sign simultaneously.Each pipe fitting that is actually the different size model has all become corresponding welding depth location control chi simultaneously, by using this specific control chi just can directly draw the welding degree of depth that pipeline needs hot melt, meanwhile can also draw pipeline intuitively and be inserted into inserting depth in the pipe fitting according to being arranged on lengthening section sign on the pipe fitting.After making welding sounding mark and insertion depth mark on the pipeline, can carry out next step operation.Operator just needn't learn the welding degree of depth of all size pipe fitting by heart like this.Not only accurately controlled the welding degree of depth, and in whole connection procedure, do not need to measure with gauge, also needn't put welding degree of depth guide line, promptly omitted in traditional connecting means and measured and placement welding degree of depth guide line two procedures with chi, simple, efficient and convenient, increased substantially the efficiency of construction that hot melt connects, reduce operate miss.Also avoid simultaneously because of the workman lazy or misoperation to cause connecting unreliable, fully ensured the installation quality of pipe-line system.
Claims (74)
1. the thermofusible spigot special pipe fitting of a metallic plastic-lining pipeline, comprise body (1), it is characterized in that at least one end at described body (1) is provided with the lengthening section (12) with its one, the length of this lengthening section (12) is used expansion elongation under the temperature difference condition more than or equal to the ducted plastic lining pipeline of metallic plastic-lining in maximum.
2. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 1 is characterized in that the two ends of described body (1) are equipped with lengthening section (12).
3. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 1 is characterized in that being provided with lengthening section (12) at an end of described body (1), and another is provided with adaptive link.
4. as the thermofusible spigot special pipe fitting of claim 1,2 or 3 described metallic plastic-lining pipelines, the internal diameter that it is characterized in that described lengthening section (12) is d3=d0+2 * δ max, in the formula: d3 is the internal diameter of lengthening section (12), unit: mm, d0 is the plastic lining external diameter of pipe, unit: mm, δ max are the metallic conduit thickests, unit: mm.
5. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 4 is characterized in that having lead angle with lengthening section (12) joint in the described body (1).
6. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 4 is characterized in that the wall thickness of described lengthening section (12) is identical with the wall thickness of body (1).
7. as the thermofusible spigot special pipe fitting of each described metallic plastic-lining pipeline of claim 1-3, it is characterized in that being provided with the welding deep identification, be provided with lengthening section sign (8) in described lengthening section (12) and body (1) joint at the outer surface of described body (1).
8. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 5 is characterized in that being provided with the welding deep identification at the outer surface of described body (1), is provided with lengthening section sign (8) in described lengthening section (12) and body (1) joint.
9. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 6 is characterized in that being provided with the welding deep identification at the outer surface of described body (1), is provided with lengthening section sign (8) in described lengthening section (12) and body (1) joint.
10. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 4 is characterized in that being provided with the welding deep identification at the outer surface of described body (1), is provided with lengthening section sign (8) in described lengthening section (12) and body (1) joint.
11. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 7 is characterized in that described lengthening section sign (8) is the tag line along body (1) circumferencial direction.
12. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 8 is characterized in that described lengthening section sign (8) is the tag line along body (1) circumferencial direction.
13. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 9 is characterized in that described lengthening section sign (8) is the tag line along body (1) circumferencial direction.
14. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 11 is characterized in that described tag line has eye-catching color; Perhaps make by the fluorescent material.
15. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 12 is characterized in that described tag line has eye-catching color; Perhaps make by the fluorescent material.
16. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 13 is characterized in that described tag line has eye-catching color; Perhaps make by the fluorescent material.
17. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 7 is characterized in that described lengthening section sign (8) is bulge loop or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
18. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 8 is characterized in that described lengthening section sign (8) is bulge loop or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
19. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 9 is characterized in that described lengthening section sign (8) is bulge loop or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
20. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 10 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
21. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 11 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
22. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 12 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
23. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 13 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
24. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 14 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
25. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 15 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
26. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 16 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
27. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 17 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
28. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 18 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
29. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 19 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
30. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 7 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
31. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 8 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
32. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 9 is characterized in that described welding deep identification is arrow (2) or the graduation line (3) along body (1) axial direction.
33. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 20, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
34. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 21, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
35. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 22, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
36. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 23, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
37. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 24, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
38. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 25, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
39. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 26, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
40. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 27, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
41. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 28, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
42. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 29, the initial position that it is characterized in that described arrow (2) or graduation line (3) identifies (8) at described lengthening section and locates.
43. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 7, it is characterized in that described welding deep identification is the tag line (4) along body (1) circumferencial direction, the distance between this tag line (4) and the described lengthening section sign (8) equals the welding degree of depth of national Specification.
44. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 8, it is characterized in that described welding deep identification is the tag line (4) along body (1) circumferencial direction, the distance between this tag line (4) and the described lengthening section sign (8) equals the welding degree of depth of national Specification.
45. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 9, it is characterized in that described welding deep identification is the tag line (4) along body (1) circumferencial direction, the distance between this tag line (4) and the described lengthening section sign (8) equals the welding degree of depth of national Specification.
46. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 30 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
47. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 31 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
48. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 32 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
49. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 33 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
50. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 34 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
51. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 35 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
52. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 36 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
53. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 37 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
54. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 38 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
55. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 39 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
56. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 40 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
57. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 41 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
58. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 42 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
59. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 43 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
60. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 44 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
61. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 45 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
62. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 20 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
63. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 21 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
64. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 22 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
65. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 23 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
66. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 24 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
67. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 25 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
68. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 26 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
69. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 27 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
70. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 28 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
71. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 29 is characterized in that described welding deep identification has eye-catching color, is perhaps made by the fluorescent material.
72. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 7 is characterized in that described welding deep identification is bulge loop (5) or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
73. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 8 is characterized in that described welding deep identification is bulge loop (5) or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
74. the thermofusible spigot special pipe fitting of metallic plastic-lining pipeline as claimed in claim 9 is characterized in that described welding deep identification is bulge loop (5) or semicircle bulge loop or the protruding arc along body (1) circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872281U CN201246569Y (en) | 2007-12-18 | 2007-12-18 | Hot melt spigot-and-socket specific pipe fittings for metallic plastic-lining pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872281U CN201246569Y (en) | 2007-12-18 | 2007-12-18 | Hot melt spigot-and-socket specific pipe fittings for metallic plastic-lining pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246569Y true CN201246569Y (en) | 2009-05-27 |
Family
ID=40730391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201872281U Expired - Lifetime CN201246569Y (en) | 2007-12-18 | 2007-12-18 | Hot melt spigot-and-socket specific pipe fittings for metallic plastic-lining pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246569Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251217B (en) * | 2007-12-18 | 2010-06-02 | 北京航天凯撒国际投资管理有限公司 | Hot melt spigot-and-socket special pipe fittings for metallic plastic-lining pipe |
| CN104070514A (en) * | 2014-05-16 | 2014-10-01 | 江苏柏诚工程股份有限公司 | PVC (Polyvinyl Chloride) pipe installation calibration mould |
-
2007
- 2007-12-18 CN CNU2007201872281U patent/CN201246569Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251217B (en) * | 2007-12-18 | 2010-06-02 | 北京航天凯撒国际投资管理有限公司 | Hot melt spigot-and-socket special pipe fittings for metallic plastic-lining pipe |
| CN104070514A (en) * | 2014-05-16 | 2014-10-01 | 江苏柏诚工程股份有限公司 | PVC (Polyvinyl Chloride) pipe installation calibration mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090527 Effective date of abandoning: 20071218 |