CN207229953U - Coupling pipe elements for plastic water supply pipe - Google Patents
Coupling pipe elements for plastic water supply pipe Download PDFInfo
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- CN207229953U CN207229953U CN201721107208.9U CN201721107208U CN207229953U CN 207229953 U CN207229953 U CN 207229953U CN 201721107208 U CN201721107208 U CN 201721107208U CN 207229953 U CN207229953 U CN 207229953U
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- spigot
- bell
- pipe elements
- coupling pipe
- water supply
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Abstract
The utility model specifically discloses a kind of coupling pipe elements for plastic water supply pipe, can reduce metal inner peripheral surface and directly be contacted with water and good to the influence of water quality, sealing and anti-leakage water effect.The coupling pipe elements are by the plastic casing with water receiving chamber and are embedded in the metal insert of plastic casing one end and form, and the bell and spigot being connected with water receiving chamber and the limited step below bell and spigot are equipped with the metal insert；There is the interior tooth being adapted with the outer tooth head of movable connecting piece, the limited step is with respect to bell and spigot radial direction convex and is installed with the first sealing ring on it, and the internal perisporium axially spaced-apart of the limited step is provided with least two sealing grooves in the bell and spigot；The inner wall of the water receiving chamber is close to the internal perisporium of limited step and towards the axially extending formation extension of bell and spigot, the space screwed in for outer tooth head is left between the extension and bell and spigot, and the end of the extension is equipped with stair ring and is adapted to the second sealing ring being set in stair ring.
Description
Technical field
Pipe fitting technical field is the utility model is related to, more particularly to a kind of coupling pipe elements for plastic water supply pipe.
Background technology
Pipeline is a kind of common article.The connection of pipeline is realized generally by pipe joint, in Chinese patent
Number be 201120485894X, authorized announcement date be on July 11st, 2012, entitled " one kind insulation feedwater piping and guarantor
A kind of pipeline is disclosed in the patent document of warm water supply piping system ".The material for making pipe joint has very much, wherein plastics material
The pipe joint of matter due to have the advantages that it is light-weight, will not be low etc. by corrosion, cost, application is very wide weary.
The pipe joint of plastic material has threaded and not threaded two kinds of structure type, the pipe joint of threaded inserts
Basic structure form be to rabbet inserts, inserts in the interface end of pipe joint and use metal material（Usually copper）Make and
Into, connection Design of Screw Thread on the inner peripheral surface or outer circumferential surface of inserts, to avoid connection when produces tear phenomenon.Chinese special
Profit number is 2007100696821, publication date is on November 28th, 2007, the patent document i.e. public affairs of entitled " water pipe head "
A kind of pipe joint equipped with threaded insert is opened.
But existing pipe joint has the following disadvantages：Inserts inner peripheral surface bare area is big during use, easily produces rust
Phenomenon is lost, in order to avoid producing corrosion phenomena, inserts, which can only use, does not allow the metal material such as copper of easy-to-rust to be made so that
Make the kind generic limitation of the material of inserts.Further, since the coefficient of expansion of metal and plastics is inconsistent, metal when expanding with heat and contract with cold
Between plastics return produce layering break-off, cause inserts come off or the junction of plastics and metal produce leakage phenomenon, especially
It is to be also easy to produce drainage in the inside and outside tooth place of being spirally connected end.
Utility model content
To overcome technological deficiency existing in the prior art, the utility model provides a kind of junction block for plastic water supply pipe
Part, can reduce metal inner peripheral surface and directly be contacted with water and good to the influence of water quality, sealing and anti-leakage water effect.
The utility model use technical solution be：
For the coupling pipe elements of plastic water supply pipe, be engaged with the movable connecting piece with outer tooth head, the coupling pipe elements by with
The plastic casing of water receiving chamber and the metal insert composition for being embedded in plastic casing one end, are equipped with the metal insert and water receiving chamber
The bell and spigot being connected and the limited step below bell and spigot；There is the outer tooth head with movable connecting piece mutually to fit in the bell and spigot
The interior tooth matched somebody with somebody, the limited step is with respect to bell and spigot radial direction convex and is installed with the first sealing ring on it, the limited step
Internal perisporium axially spaced-apart be provided with least two sealing grooves；The inner wall of the water receiving chamber is close to the internal perisporium of limited step simultaneously
Towards the axially extending formation extension of bell and spigot, the space screwed in for outer tooth head is left between the extension and bell and spigot, and
The end of the extension is equipped with stair ring and is adapted to the second sealing ring being set in stair ring.
Preferably, the coupling pipe elements are straight coupling, 90 ° of elbows, 45 ° of elbows or three-way connection, the coupling pipe elements
Other ends be set to hot-melt adhesive paste end.
Preferably, the metal insert includes insert bodies and the cap bag for being integrally attached to insert bodies top, described embedding
The lateral wall of part main body is arranged at intervals with least two sealing annular grooves up and down, and it is empty that injection is left between the cap bag and insert bodies
Between.
Preferably, the cap bag inner peripheral surface is equipped with some ending tendon transfers.
Preferably, the T-shaped structure of radial section of the sealing groove.
Preferably, the 3rd sealing ring is equipped between the metal insert bottom surface and plastic casing.
The beneficial effects of the utility model：When the utility model coupling pipe elements are engaged with the movable connecting piece with outer tooth head
Can closely it be offseted with movable connecting piece respectively by the first sealing ring and the second sealing ring behind position close inside and outside tooth bolt to realize
Preventing water leakage effect is sealed, while is isolated using the interior tooth realization of the outer tooth head of extension cladding and metal insert with in-pipe flow, is dropped
The influence of low metal inserts and outer tooth head to water quality.In addition, sealing groove is equipped between plastic casing and limited step internal perisporium,
Sealing annular groove is equipped between plastic casing and metal insert periphery wall, injection space is left between cap bag and insert bodies, so
The bonding strength between plastic casing and metal insert can be greatly enhanced, avoids the occurrence of due to coefficient of thermal expansion and contraction difference and causes
The phenomenon that plastic casing is peeled off with metal insert delamination.
Brief description of the drawings
Fig. 1 is the utility model metal insert profile.
Fig. 2 is the sectional view of the A-A shown in Fig. 1.
Fig. 3 is the utility model coupling pipe elements interface end structure diagram.
Fig. 4 is the loose joint end structure schematic diagram of the utility model movable connecting piece.
Fig. 5 is installed in place status architecture schematic diagram for the utility model coupling pipe elements with movable connecting piece.
Fig. 6 is the partial enlarged view in the B portions shown in Fig. 5.
Description of reference numerals：
10th, plastic casing；11st, water receiving chamber；12nd, extension；20th, insert bodies；21st, sealing annular groove；22nd, bell and spigot；23、
Limited step；24th, sealing groove；30th, cap bag；31st, ending tendon transfer；41st, the first sealing ring；42nd, the second sealing ring；43rd, the 3rd is close
Seal；50th, movable connecting piece；51st, loose joint tube body；52nd, outer tooth head；53rd, it is convex to connect ring；54th, the 4th sealing ring.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in figures 1 to 6, the present embodiment provides a kind of coupling pipe elements for plastic water supply pipe, and with outer tooth first 52
Movable connecting piece 50 is engaged, and the direct of pipeline, switching or shunting etc. are realized by being engaged with the movable connecting piece 50.
The movable connecting piece 50 is made of loose joint tube body 51 and outer tooth first 52, and the structure of the loose joint tube body 51 can be straight-through knot
Structure, 90 ° of elbows, 45 ° of elbows or three-way connection, each end of loose joint tube body 51 can be isometrical, or reducing, the outer tooth head
52 are movably connected in one end of loose joint tube body 51 and the end is set to loose joint end, and other ends of the loose joint tube body 51 are set to heat
Molten connecting pin.The outer tooth first 52 have with it is matched on the outside of the loose joint end of loose joint tube body 51 under connect ring and with loose joint tube body 51
Loose joint end top surface it is matched on connect ring, by above connect ring and under connect the outer tooth of ring first 52 and be movably connected in loose joint tube body 51
Loose joint end on, and it is described on connect first 52 internal perisporium of the relatively outer tooth of radial inner end of ring and be inwardly convexly equipped with and convex connect ring 53, the work
The 4th sealing ring 54 is equipped between 51 periphery wall of jointed tubular workpieces and outer tooth first 52, as shown in Figure 4.
In the present embodiment, the coupling pipe elements by the plastic casing 10 with water receiving chamber 11 and are embedded in plastic casing 10
The metal insert composition of one end, the coupling pipe elements are straight coupling, 90 ° of elbows, 45 ° of elbows or three-way connection, with movable connecting piece
50 matched ends are set to interface end, other ends of the coupling pipe elements can be set to hot-melt adhesive paste end.The metal insert
Including insert bodies 20 and the cap bag 30 on 20 top of insert bodies is integrally attached to, the lateral wall of the insert bodies 20 is between the upper and lower
Every being provided with least two sealing annular grooves 21, injection space is left between the cap bag 30 and insert bodies 20, passes through seal ring
Groove 21 and injection space can reduce because coefficient of thermal expansion and contraction differs cause that plastic casing 10 and metal insert delamination divide can
Energy property, while the stability and compression and tensile strength of the connection structure between metal insert and plastic casing 10 can be strengthened.It is described
The 3rd sealing ring 43 is equipped between metal insert bottom surface and plastic casing 10.
The cap bag 30 is by footpath convex ring, axial insert and is radially inserted into ring group into the footpath convex ring is opposite
20 top horizontal radial of insert bodies stretches out and is exposed at outside 10 interface end of plastic casing, the axial direction insert and radial direction
The radial outer end of outer bulge loop connects and extends axially downward, and the lower periphery for being radially inserted into ring insert to axial is to convex
Stretch, ending tendon transfer 31 is both provided with the inner peripheral surface of the inner peripheral surface of the footpath convex ring and axial insert：The specific footpath
Outwards the circumferential direction uniform intervals of ending tendon transfer 31 on bulge loop are arranged, the circumferential uniform intervals cloth of ending tendon transfer 31 on the axial direction insert
Put, and the ending tendon transfer 31 on the axial insert is corresponded respectively between the two neighboring ending tendon transfer 31 on the convex ring of footpath,
The radial section of the ending tendon transfer 31 is in U shape structure, can so be prevented opposite between metal insert and plastic casing 10
Circumferentially rotate and peel off, realize that cap bag 30 and insert bodies 20 are connected with the firm of plastic casing 10.
In the present embodiment, equipped with the bell and spigot 22 being connected with water receiving chamber 11 and positioned at bell and spigot in the metal insert
The limited step 23 of 22 lower sections, the bell and spigot 22 is interior to have the interior tooth being adapted with the outer tooth first 52 of movable connecting piece 50, the limit
Position step 23 is with respect to 22 radial direction convex of bell and spigot and is installed with the first sealing ring 41 on it, the internal perisporium of the limited step 23
Axially spaced-apart is provided with least two sealing grooves 24, the T-shaped structure of radial section of the sealing groove 24.The water receiving chamber
11 inner wall is close to the internal perisporium of limited step 23 and forms extension 12, the extension 12 towards bell and spigot 22 is axially extending
The space screwed in for outer tooth first 52 is left between bell and spigot 22, and the end of the extension 12 is equipped with stair ring and adaptation set
The second sealing ring 42 being located in stair ring, be installed in place rear second sealing ring 42 be closely connected to it is described it is convex connect ring 53 and
Realize that sealing and anti-leakage water acts on.
The basic principle and main feature and advantages of the present invention of the invention has been shown and described above, the industry
Technical staff is it should be appreciated that the present utility model is not limited to the above embodiments, described in the above embodiment and specification
It is the principle for illustrating the utility model, on the premise of the invention spirit and scope are not departed from, the utility model also has
Various changes and modifications, these various changes and improvements fall within the scope of the claimed invention, the requires of the utility model
Protection domain is defined by the appending claims and its equivalent thereof.
Claims (6)
1. for the coupling pipe elements of plastic water supply pipe, it is engaged with the movable connecting piece with outer tooth head, it is characterised in that the junction block
Part is by the plastic casing with water receiving chamber and is embedded in the metal insert of plastic casing one end and forms, and is equipped with the metal insert
The bell and spigot being connected with water receiving chamber and the limited step below bell and spigot；Have in the bell and spigot outer with movable connecting piece
The interior tooth that tooth head is adapted, the limited step is with respect to bell and spigot radial direction convex and is installed with the first sealing ring on it, described
The internal perisporium axially spaced-apart of limited step is provided with least two sealing grooves；The inner wall of the water receiving chamber is close to limited step
Internal perisporium and towards the axially extending formation extension of bell and spigot, leaves what is screwed in for outer tooth head between the extension and bell and spigot
Space, and the end of the extension is equipped with stair ring and is adapted to the second sealing ring being set in stair ring.
2. the coupling pipe elements according to claim 1 for plastic water supply pipe, it is characterised in that the coupling pipe elements are straight
Pass joint, 90 ° of elbows, 45 ° of elbows or three-way connection, other ends of the coupling pipe elements are set to hot-melt adhesive paste end.
3. the coupling pipe elements according to claim 1 for plastic water supply pipe, it is characterised in that the metal insert includes
Insert bodies and the cap bag for being integrally attached to insert bodies top, the lateral wall of the insert bodies are arranged at intervals with least up and down
Two sealing annular grooves, leave injection space between the cap bag and insert bodies.
4. the coupling pipe elements according to claim 3 for plastic water supply pipe, it is characterised in that on the cap bag inner peripheral surface
Equipped with some ending tendon transfers.
5. the coupling pipe elements according to any one of claims 1 to 4 for plastic water supply pipe, it is characterised in that described to stop
The T-shaped structure of radial section of water groove.
6. the coupling pipe elements according to claim 5 for plastic water supply pipe, it is characterised in that the metal insert bottom surface
The 3rd sealing ring is equipped between plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107208.9U CN207229953U (en) | 2017-08-31 | 2017-08-31 | Coupling pipe elements for plastic water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107208.9U CN207229953U (en) | 2017-08-31 | 2017-08-31 | Coupling pipe elements for plastic water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229953U true CN207229953U (en) | 2018-04-13 |
Family
ID=61859996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721107208.9U Active CN207229953U (en) | 2017-08-31 | 2017-08-31 | Coupling pipe elements for plastic water supply pipe |
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| CN (1) | CN207229953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662326A (en) * | 2018-07-11 | 2018-10-16 | 芜湖帮许来诺医疗设备科技有限公司 | A kind of hose connector |
| CN109027490A (en) * | 2018-08-29 | 2018-12-18 | 浙江伟星新型建材股份有限公司 | It is a kind of for connecting the electric melting pipe fittings of unlike material tubing |
| CN111963870A (en) * | 2019-05-20 | 2020-11-20 | 覃俊宁 | Low-temperature bearing adhesive support |
-
2017
- 2017-08-31 CN CN201721107208.9U patent/CN207229953U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662326A (en) * | 2018-07-11 | 2018-10-16 | 芜湖帮许来诺医疗设备科技有限公司 | A kind of hose connector |
| CN109027490A (en) * | 2018-08-29 | 2018-12-18 | 浙江伟星新型建材股份有限公司 | It is a kind of for connecting the electric melting pipe fittings of unlike material tubing |
| CN111963870A (en) * | 2019-05-20 | 2020-11-20 | 覃俊宁 | Low-temperature bearing adhesive support |
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| GR01 | Patent grant |