CN207229958U - Internal thread copper insert and the water pipe head for having internal thread copper insert - Google Patents

Abstract

The utility model discloses a kind of internal thread copper insert and has the water pipe head of internal thread copper insert, internal thread copper insert includes insert bodies and the lantern ring, there is centre bore in insert bodies, the periphery wall of insert bodies is equipped with the first sealing annular groove, there is internal thread at the top of centre bore, bottom has the spacing ring of radial direction convex, and the internal perisporium of spacing ring is equipped with the second sealing annular groove；First sealing annular groove inner circumferential is interval with multiple rotation stop columns, and spaced between the side wall of each rotation stop column and the first sealing annular groove.The utility model may be such that the bonding strength higher between internal thread copper insert and plastic casing, efficiently solve due to hot and cold water expands with heat and contract with cold in and delamination stripping between internal thread copper insert and plastic casing and cracking phenomena caused by producing leakage, sealing and anti-leakage water effect is good, and may be such that and will not relatively rotate between insert bodies and plastic casing, further enhance the connectivity robustness and the water-based energy of sealing and anti-leakage between internal thread copper insert and plastic casing.

Description

Internal thread copper insert and the water pipe head for having internal thread copper insert

Technical field

Pipe fitting technical field is the utility model is related to, more particularly to a kind of internal thread copper insert and has internal thread copper insert Water pipe head.

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.Threaded pipe joint due to The intensity of plastics is relatively low, and threaded pipe joint easily produces the phenomenon being torn in assembling process.It is threaded in order to overcome The deficiency being easily torn in pipe joint assembling process, have devised the pipe joint of threaded inserts.Threaded inserts The basic structure form of pipe joint is rabbets inserts in the interface end of pipe joint, inserts uses metal material（Usually copper） Be made, the Design of Screw Thread of connection on the inner peripheral surface or outer circumferential surface of inserts, come avoid connection when produce tear phenomenon. China Patent No. is 2007100696821, publication date is on November 28th, 2007, the patent text of entitled " water pipe head " Part discloses a kind of pipe joint equipped with threaded insert.

But the existing pipe joint equipped with threaded insert has the following disadvantages：Due to metal and the coefficient of expansion of plastics It is inconsistent, returned when expanding with heat and contract with cold between metal and plastics and produce layering break-off, cause inserts to come off or plastics and metal Junction produces leakage phenomenon；Pipe joint end end face bare area is larger, is to pass through interface when easily producing aging, and connecting Hold end face（That is parts of plastics）Contacted, and plastics are since hardness is low, be easily scratched and occur uneven, produce recessed Both influenced beautiful after convex injustice or caused planarization during docking poor；Metal and plastics are easy to cause in pipeline connection procedure Peeling-off and relative rotation.

Utility model content

To overcome technological deficiency existing in the prior art, it is embedding that the utility model provides a kind of internal thread copper insert and tool internal thread copper The water pipe head of part, reduces the influence for the energy water-based to sealing and anti-leakage between internal thread copper insert and plastic casing that expands with heat and contract with cold, and protects It will not peel off and relatively rotate between internal thread copper insert and plastic casing in card pipe installation process.

The utility model use technical solution be：

Internal thread copper insert, including insert bodies and the lantern ring with insert bodies top integrally connected, in the insert bodies Centre bore with up/down perforation, the periphery wall of the insert bodies are equipped with the first sealing annular groove, the top of the centre bore With internal thread, bottom has the spacing ring of radial direction convex, and the internal perisporium of the spacing ring is equipped with the second sealing annular groove；Described One sealing annular groove inner circumferential is interval with multiple rotation stop columns, and between being left between the side wall of each rotation stop column and the first sealing annular groove Every.

Preferably, the first sealing annular groove is between the upper and lower every being provided with two.

Preferably, the radial section of the first sealing annular groove is in dove-tail form or T-shaped.

Preferably, the lantern ring by footpath convex ring, axial insert and is radially inserted into ring group into the footpath convex ring Stretch out with respect to insert bodies top horizontal radial, the axial direction insert connects with the radial outer end of footpath convex ring and axis To extending downwardly, the lower periphery for being radially inserted into ring insert to axial is protruded out towards centre bore, and the lantern ring with it is embedding Injection space is left between part main body.

Preferably, the spacing ring bottom surface is equipped with injection step, and the joint of the injection step is set to arc transition knot Structure.

Preferably, accommodating annular groove is equipped between the spacing ring and internal thread, the accommodating annular groove concaves with respect to internal thread footpath Set, the accommodating annular groove internal pressure is tightly provided with sealing ring.

Preferably, the lower end sidepiece of the sealing ring has inclined curved guiding surface, the upper end sidepiece tool of the sealing ring There is the shoulder block protruded in a ring.

The utility model also provide it is a kind of have internal thread copper insert water pipe head, including plastic casing and above-mentioned internal thread copper it is embedding Part, the plastic casing injection molding is coated between the lantern ring and insert bodies and spacing ring internal perisporium, and the internal thread copper is embedding The surface that part is in contact with plastic casing is equipped with thermal insulation layer.

Preferably, the thermal insulation layer is fiberglass gridding cloth.

Preferably, the rectangular elbow structure of the plastic casing, T-shaped three-port structure or bypass structure.

The beneficial effects of the utility model：

1. due to being connected with the lantern ring at the top of insert bodies, it is embedding that the lantern ring with respect to insert bodies footpath convex expands internal thread copper Face area of the part at plastic casing interface end, can reduce the plastics bare area of interface end end face, delay interface end Aging；

2. due to leaving injection space between the lantern ring and insert bodies, insert bodies periphery wall is equipped with the first seal ring Groove, spacing ring internal perisporium are equipped with the second sealing annular groove so that the bonding strength higher between internal thread copper insert and plastic casing, Hold together, can efficiently solve due to hot and cold water expands with heat and contract with cold in and produce leakage caused by internal thread copper insert with Delamination stripping and cracking phenomena between plastic casing, sealing and anti-leakage water effect is good, has preferable safety and reliability；

3. injection-moulded housing also injection molding is in spacing ring internal perisporium, one can to reduce internal thread copper insert inner peripheral surface direct with water body The area being in contact, two can coordinate enhancing to consolidate effect to the cladding of internal thread copper insert with the plastic casing of internal thread copper insert periphery Fruit；

4. due to being equipped with rotation stop column in the first sealing annular groove convex, by rotation stop column insert bodies and plastic casing it Between will not relatively rotate, further enhance the connectivity robustness and sealing and anti-leakage water between internal thread copper insert and plastic casing Performance；

5. reduce the hot and cold water heat transmitted in pipeline by thermal insulation layer is transferred to plastic casing from internal thread copper insert, so that Plastic casing and internal thread copper insert are effectively reduced because there is a phenomenon where delamination or cracking, slowing down plastics coefficient of thermal expansion and contraction is different The creep of housing, while when hydraulic pressure is excessive in internal thread copper insert, fiberglass gridding cloth can absorb the mistake of internal thread copper insert Cross stress at angle and concentrate liquid that is excessive and causing cracking to ooze out.

Brief description of the drawings

Fig. 1 is the utility model internal thread copper insert structure diagram.

Fig. 2 is the utility model water pipe head interface end structure diagram.

Description of reference numerals：

10th, insert bodies；11st, internal thread；12nd, spacing ring；13rd, annular groove is housed；14th, sealing ring；15th, the first sealing annular groove； 16th, rotation stop column；121st, the second sealing annular groove；122nd, it is molded step；20th, the lantern ring；21st, footpath convex ring；22nd, axial insert； 23rd, it is radially inserted into ring；100th, plastic casing；200th, internal thread copper insert；300th, thermal insulation layer.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings：

As shown in Figs. 1-2, the present embodiment provides it is a kind of have internal thread copper insert water pipe head, including plastic casing 100 and Internal thread copper insert 200, the internal thread copper insert 200 include insert bodies 10 and the lantern ring with 10 top integrally connected of insert bodies 20。

In the present embodiment, there is the centre bore of up/down perforation, the top tool of the centre bore in the insert bodies 10 There is internal thread 11, bottom has the spacing ring 12 of radial direction convex, and accommodating annular groove 13, institute are equipped between the spacing ring 12 and internal thread 11 State accommodating annular groove 13 to concave settings with respect to 11 footpath of internal thread, compression is provided with sealing ring 14 in the accommodating annular groove 13, described close The lower end sidepiece of seal 14 has inclined curved guiding surface, and the upper end sidepiece of the sealing ring 14 has the gear protruded in a ring Shoulder, so when mounted, the lower end of sealing ring 14 is first put into centre bore, can by the guiding role of curved guiding surface Sealing ring 14 is easy to be passed through internal thread 11 and navigate in accommodating annular groove 13, and is in since 14 upper end sidepiece of sealing ring has The shoulder block of annular protrusion so that sealing ring 14 is not allowed after being installed in accommodating annular groove 13 by the effect sealing ring 14 of shoulder block It is easily backing out out of accommodating annular groove 13, and then in the present embodiment internal thread copper insert 200 and matched outer by sealing ring 14 Realize sealing and anti-leakage water effect in thread head phase threaded connection place.

In the present embodiment, the internal perisporium of the spacing ring 12 is equipped with the second sealing annular groove 121,12 bottom of spacing ring Face is equipped with injection step 122, and the joint of the injection step 122 is set to arc transition structure.Outside the insert bodies 10 Perisporium is equipped with the first sealing annular groove 15, and 15 inner circumferential of the first sealing annular groove is interval with multiple rotation stop columns 16, and respectively stops It is spaced between the side wall of 16 and first sealing annular groove 15 of rotary column, so that rotation stop column 16 does not interfere with first not only The leakproof outlet capacity of sealing annular groove 15, can further enhance 10 periphery wall of the present embodiment insert bodies and plastic casing 100 on the contrary Between leakproof outlet capacity, and using rotation stop column 16 insert bodies 10 can be avoided to occur in use and plastic casing 100 relative rotation.Preferably, the first sealing annular groove is arranged at intervals with two about 15, the first sealing annular groove 15 Radial section be in dove-tail form or T-shaped.

In the present embodiment, the lantern ring 20 by footpath convex ring 21, axial insert 22 and is radially inserted into ring 23 and forms, The footpath convex ring 21 stretches out with respect to 10 top horizontal radial of insert bodies and is exposed at 100 interface end of plastic casing Outside, the axial insert 22 connects and extends axially downward with the radial outer end of footpath convex ring 21, described to be radially inserted into ring The lower periphery of 23 inserts 22 to axial is protruded out towards centre bore, and injection is left between the lantern ring 20 and insert bodies 10 Space so that the lantern ring 20, insert bodies 10 and plastic casing 100 form overall structure, can efficiently solve since hot and cold water makes Expand with heat and contract with cold and stripping between the lantern ring 20 and plastic casing 100 and cracking phenomena caused by producing leakage, have preferable in Safety and reliability.

In the present embodiment, 100 injection molding of plastic casing is coated between the lantern ring 20 and insert bodies 10 and limits The internal perisporium of position ring 13, the plastic casing 100 can at right angles elbow structure, T-shaped three-port structure or bypass structure, the plastics For housing 100 in addition to the interface end to connect with internal thread copper insert 200, other ends can be set to hot-melt adhesive paste end.

In the present embodiment, the surface that the internal thread copper insert 200 is in contact with plastic casing 100 is equipped with thermal insulation layer 300, the thermal insulation layer 300 is fiberglass gridding cloth, and the hot and cold water heat that transmits is reduced in pipeline from interior by thermal insulation layer 300 Silk copper insert 200 is transferred to plastic casing 100, so as to effectively reduce plastic casing 100 and internal thread copper insert 200 because expanding with heat and contract with cold Coefficient it is different and there is a phenomenon where delamination or cracking, slow down the creep of plastic casing 100, while when water in internal thread copper insert 200 When pressing through big, fiberglass gridding cloth can absorb stress at the transition angle of internal thread copper insert 200 and concentrate excessive and cause out Split the liquid of exudation.Include the first sealing annular groove 15, the second sealing annular groove 121, note at the transition angle of above-mentioned internal thread copper insert 200 Mould at the transition angle at step 122 and the lantern ring 20.

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 not being departed from it should be appreciated that the description of the embodiments and the specification only illustrate the principle of the present utility model On the premise of the invention spirit and scope, the utility model also has various changes and modifications, these changes and improvements are all Fall into claimed the scope of the utility model, the utility model requires protection scope is by appended claims and its waits Effect thing defines.

Claims (10)

1. internal thread copper insert, including insert bodies and the lantern ring with insert bodies top integrally connected, the interior tool of the insert bodies There is the centre bore of up/down perforation, the periphery wall of the insert bodies is equipped with the first sealing annular groove, it is characterised in that the center The top in hole has internal thread, and bottom has the spacing ring of radial direction convex, and the internal perisporium of the spacing ring is equipped with the second seal ring Groove；The first sealing annular groove inner circumferential is interval with multiple rotation stop columns, and the side wall of each rotation stop column and the first sealing annular groove it Between it is spaced.

2. internal thread copper insert according to claim 1, it is characterised in that the first sealing annular groove is between the upper and lower every being provided with Two.

3. internal thread copper insert according to claim 1, it is characterised in that the radial section of the first sealing annular groove is in swallow Tail type is T-shaped.

4. internal thread copper insert according to claim 1, it is characterised in that the lantern ring is by footpath convex ring, axial insertion Ring group is enclosed and is radially inserted into the footpath convex ring stretches out with respect to insert bodies top horizontal radial, and the axial direction is embedding Circle connects and extends axially downward with the radial outer end of footpath convex ring, described to be radially inserted into ring to axial under insert Periphery is protruded out towards centre bore, and injection space is left between the lantern ring and insert bodies.

5. internal thread copper insert according to claim 1, it is characterised in that the spacing ring bottom surface is equipped with injection step, institute The joint for stating injection step is set to arc transition structure.

6. internal thread copper insert according to any one of claims 1 to 5, it is characterised in that between the spacing ring and internal thread Equipped with accommodating annular groove, the accommodating annular groove concaves setting with respect to internal thread footpath, and the accommodating annular groove internal pressure is tightly provided with sealing ring.

7. internal thread copper insert according to claim 6, it is characterised in that the lower end sidepiece of the sealing ring has inclined Curved guiding surface, the upper end sidepiece of the sealing ring have the shoulder block protruded in a ring.

8. has the water pipe head of internal thread copper insert, it is characterised in that including plastic casing and such as any one of claim 1 to 7 institute The internal thread copper insert stated, the plastic casing injection molding is coated between the lantern ring and insert bodies and spacing ring internal perisporium, and The surface that the internal thread copper insert is in contact with plastic casing is equipped with thermal insulation layer.

9. the water pipe head of tool internal thread copper insert according to claim 8, it is characterised in that the thermal insulation layer is glass fibers Tie up grid cloth.

10. the water pipe head of tool internal thread copper insert according to claim 8, it is characterised in that the plastic casing is in straight Angle elbow structure, T-shaped three-port structure or bypass structure.