CN201225483Y - Socket joint hot melt pipe connector - Google Patents
Socket joint hot melt pipe connector Download PDFInfo
- Publication number
- CN201225483Y CN201225483Y CNU2008201089830U CN200820108983U CN201225483Y CN 201225483 Y CN201225483 Y CN 201225483Y CN U2008201089830 U CNU2008201089830 U CN U2008201089830U CN 200820108983 U CN200820108983 U CN 200820108983U CN 201225483 Y CN201225483 Y CN 201225483Y
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- CN
- China
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- section
- pipe connector
- lengthening section
- pipe
- thermofusible spigot
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- Expired - Lifetime
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Abstract
The utility model relates to a hot melt faucet pipe connecting piece which comprises a pipe, wherein at least one end of the pipe is provided with a lengthened section and a pipe plugging section which are integrated into a whole with the pipe. The lengthened section is used for containing a plugging accumulation body. In the hot melt faucet pipe connecting piece of the utility model, the plugging accumulation body formed during connecting is positioned in the faucet pipe connecting piece. The natural extrusion fusion of the inner wall of the faucet pipe connecting piece, the outer wall of a pipeline and the plugging accumulation body plays a second sealing function to a connecting part, so the phenomenon of the uneven connecting strength of the hot melt faucet connecting part of the faucet pipe connecting piece caused by various factors and the water leakage of the connecting part are prevented. In addition, the utility model has simple structure and is attractive and practical, reduces the destructiveness caused by the faucet hot melt connecting systematicness and accidental error to the lowest level, and is easy to construct and operate.
Description
Technical field
The pipe joint of systems such as the utility model relates to and a kind ofly is used to feed water, air feed, chemical industry, heating power, the spigot-and-socket hot melting pipe connector of particularly a kind of plastic pipe or 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 because each tie point is to be threaded or clamp-press type connects or welding, is prone in the using process to drip, leak, run, emit and phenomenon such as electrolytic corrosion.The connection employing homogeneity of plastic pipe is carried out the connection of thermofusible spigot formula with the plastic tube fitting of material, be fused into one between pipeline and the pipe connector, phenomenon such as avoided occurring dripping, leaking, run, emit substantially at the tie point place, and there is not an electrolytic corrosion, corrosion resistance is strong, 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 metallic plastic-lining pipeline can effectively solve plastic pipe rigidity defect of insufficient when bright dress, realizes the light rigidity (especially aluminum alloy plastics lined pipe road) 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.
The thermofusible spigot connection of plastic pipe or metallic plastic-lining pipeline refers to adopts thermoplastic material (as polyethylene, heat-proof polythene, polypropylene, the inwall of the outer wall of the plastic pipe of polybutylene etc.) making and plastic tube fitting uses special tool to carry out the Placement of a kind of socket joint welding of carrying out behind the surface melting respectively, according to international or national correlation technique standard-required, the external diameter of plastic pipe must be greater than the internal diameter of plastic tube fitting, the internal diameter that is to say the plastic tube fitting must be less than the external diameter of the plastic pipe that will connect, (the correlation technique data of concrete phase difference size can referring to the concerned countries standard of plastic pipe) when nationality is connected with pipe connector socket joint hot melt to cause tubing along pipeline squeezed state radially, formation is along pipeline fusion face pressure radially, produce the welding density of fusion, thereby ensure certain heat seal strength and welding density (being referred to as the socket joint welding of interference usually); Therefore the connection of socket joint hot melt must cause along the formation of the socket joint accumulation body of conduit axis direction, in the current in the world before this plastic pipe socket joint hot melt Placement technical know-how that designs the socket joint accumulation body that is produced is not done the consideration of any application facet, inevitable outcome after only being used as the socket joint hot melt and connecting is treated and is not used, certainly in socket joint hot melt attended operation process these socket joint accumulation bodies sometimes to the effect of damaging property of pipe-line system.
Random error aspect from the attended operation of socket joint hot melt:
1, hot molten time is long or inserting depth is excessive, and the socket joint accumulation body in pipe connector inside along the socket joint direction can cause pipeline undergauge even blocking pipe, buries the major accident hidden danger of pipeline operation;
2, operation is lack of standardization, and off-axis causes the face of weld discontinuity to insertion during as thermofusible spigot, or welding socket joint excessive velocities, slow excessively, cause face of weld to fail thoroughly to fuse, produce the plane of weakness of heat seal strength, in the long-time running process, bury accident potential such as seepage, booster.
Systematic error aspect from the attended operation of socket joint hot melt:
1, can destroy the aesthetic property that pipe-line system connects at the pipe connector port greatly along the socket joint accumulation body that socket joint oppositely forms the joint pipeline outer wall;
2, the out of roundness of pipe part causes thermofusible spigot interference face unbalance stress, and the face of weld heat seal strength is inhomogeneous, even produces the gap, causes seepage.
The model utility content
The utility model is for addressing the above problem, at least one end at pipe connector is provided with lengthening section, utilize lengthening section that above-mentioned grafting accumulation body is placed in the pipe connector body, fuse the secondary seal of having finished the joint by the inwall of pipe connector body lengthening section and the pipeline outer wall and the pushing naturally of grafting accumulation body three parts of insertion, effectively utilized the socket joint accumulation body that the random error of socket joint hot melt attended operation and the destructiveness of systematic error are eliminated to limit, given the raising of the matter of socket joint hot melt connection reliability, and the appearance looks elegant practicality.
For achieving the above object, the technical solution of the utility model is:
A kind of thermofusible spigot pipe connector comprises body, is provided with pipe fitting inserting section and lengthening section with its one at least one end of described body, and described lengthening section is used to hold the grafting accumulation body that produces when the pipe fitting hot melt is pegged graft.
Wherein, the internal diameter of described lengthening section is greater than the internal diameter of inserting section.
Wherein, the inwall of described lengthening section is provided with the lengthening section groove.
Wherein, the internal diameter of described lengthening section equals the internal diameter of inserting section, and is provided with the lengthening section groove at the inwall of described lengthening section, and the internal diameter of described lengthening section groove is greater than the internal diameter of inserting section.
Wherein, described lengthening section groove is located at the joint of described lengthening section and described inserting section.
Wherein, be provided with the body groove at the inwall of described body and in the joint of described inserting section and described body.
Wherein, the spatial volume that forms between the pipeline of described lengthening section and grafting is more than or equal to the volume of grafting accumulation body.
Wherein, it is characterized in that the spatial volume that forms between the pipeline of described lengthening section and grafting is less than the volume of grafting accumulation body.
Wherein, the joint of described lengthening section and inserting section is provided with chamfering.
Wherein, the inwall of described lengthening section is a rough surface.
Wherein, the outer surface of described inserting section is provided with welding depth location sign.
Wherein, the initial position of described welding deep identification is in the joint of described inserting section and described body, and described welding depth location sign is arrow or the calibrated scale along the body axial direction.
Wherein, the length of described arrow or calibrated scale body axial direction equals the length of described inserting section.
Wherein, the length of described inserting section meets the requirement of the NBS welding degree of depth.
Advantage of the present utility model and beneficial effect are, the utility model has carried out very effective utilization with the grafting accumulation body, not only fundamentally improve the reliability that has ensured that the socket joint hot melt connects, and eliminated the negative effect of grafting accumulation body, use thermofusible spigot pipe connector of the present utility model, the accumulation body that produces during with connection places in the lengthening section of pipe connector inside, pipe connector inwall and accumulation body fusion are carried out secondary seal to the connection part of pipe fitting, the fusion intensity and the fusion sealing of connection part have been improved, prevented because of the local hot melt strength of joint joint inhomogeneous, cause connection part to leak, accidents such as booster take place, systematic error and random error that the socket joint hot melt connects can be reduced to limit, simultaneously simple in structure, both artistic and practical, be easy to constructing operation.
Description of drawings
Fig. 1 be in the utility model pipe connector the lengthening section internal diameter greater than the structural profile schematic representation of pipe fitting inserting section internal diameter;
Fig. 2 is the structural profile schematic representation that the identical and lengthening section of the internal diameter of internal diameter and pipe fitting inserting section of lengthening section in the utility model pipe connector is provided with the lengthening section groove;
Fig. 3 is the structural profile schematic representation that the internal diameter of lengthening section in the utility model pipe connector is provided with the lengthening section groove greater than the internal diameter and the lengthening section of pipe fitting inserting section;
Fig. 4 is the structural representation that the tube wall of the utility model pipe connector is provided with calibrated scale;
Fig. 5 is the connection diagram of the utility model pipe connector and plug connector.
Among the figure: 1, inserting section; 2, lengthening section; 3, lengthening section groove; 4, body groove; 5, calibrated scale; 10, grafting accumulation body; 10a, grafting accumulation body; 20, thick section.
Embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Thermofusible spigot pipe connector of the present utility model comprises body, at least one end setting of body and the pipe fitting inserting section 1 and the lengthening section 2 of its one.As shown in Figure 1, the internal diameter of lengthening section 2 is greater than the internal diameter of pipe fitting inserting section 1, perhaps as Fig. 2 or shown in Figure 3, at the inwall of lengthening section 2 lengthening section groove 3 is set, and lengthening section groove 3 can be provided with one or more.Lengthening section 2 shown in Figure 2, its internal diameter is identical with the internal diameter of pipe fitting inserting section 1, and therefore, lengthening section groove 3 has been located at the joint of lengthening section 2 with pipe fitting inserting section 1; Lengthening section 2 shown in Figure 3, its internal diameter be greater than the internal diameter of pipe fitting inserting section 1, and at this moment, lengthening section groove 3 can be located at the joint of lengthening section 2 and pipe fitting inserting section 1, also can be located at the intermediate portion of lengthening section 2 or other positions arbitrarily.
As Fig. 1, Fig. 2, shown in Figure 3, inwall at body, and the joint at pipe fitting inserting section 1 and body is provided with body groove 4, described body groove 4 is used to hold the grafting accumulation body 10a that is formed on the body inboard, prevent because operate miss causes pipeline undergauge even obstruction, for avoiding being provided with the position reduction in strength of body groove 4, the body fracture takes place, be provided with thick section 20 at the outer surface of tube body of body groove 4 correspondences.
Above-mentioned lengthening section 2 inwalls are rough surface, and rough surface is to the mobile effect of playing obstruction of grafting accumulation body 10 to the pipe connector outside.Described rough surface can be the convex-concave surface that is made of at lengthening section 2 inwalls sags and crests, also can be grooved surfaces that is made of shapes of corrugations etc.
Socket pipe member is more smooth and easy in order to use, and can be in body 1 with the joint of lengthening section 2 chamfering be set, or at the port of lengthening section 2 chamfering be set.If the two ends of pipe fitting all are used for connecting tube, then can lengthening section 2 be set at the two ends of body, at this moment, described lengthening section 2 can adopt above-mentioned any one shape, promptly at the end setting lengthening section as shown in Figure 2 of body, Fig. 3 or lengthening section shown in Figure 4 are set at the other end of body; The perhaps end setting lengthening section 2 as shown in Figure 3 of body, the other end is provided with lengthening section shown in Figure 4; Perhaps the lengthening section of same shape is all adopted at two ends.If an end of body is used for connecting tube, the other end is used to connect valve, water meter, gas meter etc., and then an end at body is provided with lengthening section 2, and is provided for connecting the adaptive link of valve, water meter, gas meter etc. at the other end.
The lengthening section 2 of aforesaid any one shape, the volume that itself and plug connector form also can be provided with smallerly slightly more than or equal to the volume of grafting accumulation body 10 than the volume of grafting accumulation body 10.Described lengthening section 2 can design according to the material of plug connector and pipe connector, because the plug connector of different materials and pipe connector be when the socket joint welding, the grafting accumulation body 10 of generation varies in size.The volume of grafting accumulation body 10 equals the stacking volume V2 sum of pipe connector stacking volume V1 and grafting pipeline, and wherein, pipe connector V1 equals expansion coefficient, the socket joint degree of depth of pipe connector material, pipe connector internal diameter varies amount three's product; The stacking volume V2 of grafting pipeline equals expansion coefficient, the socket joint degree of depth of plug connector material, grafting outer diameter tube variable quantity three's product.Therefore, when grafting accumulation body 10 was big, what above-mentioned lengthening section 2 can be provided with was longer, and what perhaps the wall thickness of above-mentioned lengthening section 2 is provided with is thinner, perhaps wall thickness constant in external diameter amplify; Grafting accumulation body 10 hour, what lengthening section or lengthening section groove 3 can be provided with is smaller, total principle is that the major part of grafting accumulation body 10 is formed in the lengthening section 2, and lengthening section can effectively limit accumulation body along pipeline expansion radially, and forms the servo type extruding.
For determining the welding degree of depth, outer surface at the pipe joint tube wall is provided with arrow or calibrated scale, as shown in Figure 4, the utility model is provided with calibrated scale, the initial position of calibrated scale is positioned at the joint of inserting section 1 and body, the range of calibrated scale equals the axial length of inserting section 1, and the axial length of described inserting section 1 meets the requirement of the thermofusible spigot degree of depth of national Specification.
Fig. 5 is the connection diagram of the utility model thermofusible spigot pipe joint and plug connector, when using thermofusible spigot pipe connector of the present utility model to connect plastic pipe or metallic plastic-lining pipeline, range according to calibrated scale, outer surface at plastic pipe indicates hot melt grafting length, or with the outer layer metal pipeline of metallic plastic-lining pipeline, thermofusible spigot length according to the NBS defined is peeled metal tube off, expose one section liner and mould pipeline, carrying out hot melt with thermofusible spigot pipe connector of the present utility model then is connected and gets final product, when accepting, can form grafting (interference grafting) accumulation body 10 and 10a in the both sides of connection part, the grafting accumulation body 10 that forms begins to move to the port of lengthening section 2 from the joint of lengthening section 2 with inserting section 1, but because there is the temperature difference in the lengthening section both sides, grafting accumulation body 10 in the flowing velocity of joint greater than (wherein in the flowing velocity of lengthening section port, the rough surface that is located on the lengthening section inwall is played a role to producing current difference), this current difference causes most of grafting accumulation body 10 to be stacked near the joint of lengthening section 2 and inserting section 1, the expansionary force that the grafting accumulation body of piling up 10 produces to the body outside, but the tube wall of lengthening section 2 hinders lengthening section 2 expansion laterally, the interaction of these two power has strengthened the fusion intensity of socket joint accumulation body and body in the lengthening section 2 and has fused density, and connection part played effective secondary seal effect.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement or modification or choose wherein part etc., all these should be considered as protection domain of the present utility model.
Claims (14)
1, a kind of thermofusible spigot pipe connector comprises body, it is characterized in that, is provided with pipe fitting inserting section and lengthening section with its one at least one end of described body, and described lengthening section is used to hold the grafting accumulation body that produces when pipe fitting heat is pegged graft.
2, thermofusible spigot pipe connector as claimed in claim 1 is characterized in that, the internal diameter of described lengthening section is greater than the internal diameter of inserting section.
3, thermofusible spigot pipe connector as claimed in claim 2 is characterized in that, the inwall of described lengthening section is provided with the lengthening section groove.
4, thermofusible spigot pipe connector as claimed in claim 1 is characterized in that, the internal diameter of described lengthening section equals the internal diameter of inserting section, and is provided with the lengthening section groove at the inwall of described lengthening section, and the internal diameter of described lengthening section groove is greater than the internal diameter of inserting section.
5, as claim 3 or 4 described thermofusible spigot pipe connectors, it is characterized in that described lengthening section groove is located at the joint of described lengthening section and described inserting section.
6, thermofusible spigot pipe connector as claimed in claim 1 is characterized in that, is provided with the body groove at the inwall of described body and in the joint of described inserting section and described body.
7, as each described thermofusible spigot pipe connector of claim 1～4, it is characterized in that the spatial volume that forms between the pipeline of described lengthening section and grafting is more than or equal to the volume of grafting accumulation body.
8, as each described thermofusible spigot pipe connector of claim 1～4, it is characterized in that the spatial volume that forms between the pipeline of described lengthening section and grafting is less than the volume of grafting accumulation body.
9, thermofusible spigot pipe connector as claimed in claim 8 is characterized in that, the joint of described lengthening section and inserting section is provided with chamfering.
10, thermofusible spigot pipe connector as claimed in claim 1 is characterized in that, the inwall of described lengthening section is a rough surface.
11, thermofusible spigot pipe connector as claimed in claim 10 is characterized in that, the outer surface of described inserting section is provided with welding depth location sign.
12, thermofusible spigot pipe connector as claimed in claim 11 is characterized in that, the initial position of described welding deep identification is in the joint of described inserting section and described body, and described welding depth location sign is arrow or the calibrated scale along the body axial direction.
13, thermofusible spigot pipe connector as claimed in claim 12 is characterized in that, the length of described arrow or calibrated scale body axial direction equals the length of described inserting section.
14, thermofusible spigot pipe connector as claimed in claim 13 is characterized in that, the length of described inserting section meets the requirement of the NBS welding degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201089830U CN201225483Y (en) | 2008-07-01 | 2008-07-01 | Socket joint hot melt pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201089830U CN201225483Y (en) | 2008-07-01 | 2008-07-01 | Socket joint hot melt pipe connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225483Y true CN201225483Y (en) | 2009-04-22 |
Family
ID=40598369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201089830U Expired - Lifetime CN201225483Y (en) | 2008-07-01 | 2008-07-01 | Socket joint hot melt pipe connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225483Y (en) |
-
2008
- 2008-07-01 CN CNU2008201089830U patent/CN201225483Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |