CN105179833A - Connecting pipe fitting with metal insert - Google Patents
Connecting pipe fitting with metal insert Download PDFInfo
- Publication number
- CN105179833A CN105179833A CN201510486799.4A CN201510486799A CN105179833A CN 105179833 A CN105179833 A CN 105179833A CN 201510486799 A CN201510486799 A CN 201510486799A CN 105179833 A CN105179833 A CN 105179833A
- Authority
- CN
- China
- Prior art keywords
- metal insert
- pipe fitting
- plastic pipe
- connection pipe
- retaining ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 72
- 239000004033 plastic Substances 0.000 claims abstract description 66
- 229920003023 plastic Polymers 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 210000002435 tendon Anatomy 0.000 claims description 26
- 241000397426 Centroberyx lineatus Species 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- -1 polybutylene Polymers 0.000 description 3
- 229920001748 polybutylene Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention relates to a connecting pipe fitting with a metal insert. The connecting pipe fitting comprises a plastic pipe fitting and the metal insert. The metal insert is arranged in the plastic pipe fitting and attached to the inner surface of the plastic pipe fitting. The connecting pipe fitting further comprises fastening rings which are arranged on the outer surface of the plastic pipe fitting and used for reinforcing the plastic pipe fitting. The connecting pipe fitting is provided with the fastening rings which can prevent separation of the plastic pipe fitting and the metal insert in the mounting process of the connecting pipe fitting, and therefore the water leakage phenomenon in the use process is prevented. Convex ribs are arranged on the outer surface of the metal insert and can prevent separation, caused by too high torsion in the mounting process, of the plastic pipe fitting and the metal insert, and the water leakage phenomenon at the joint of the plastic pipe fitting and the metal insert is prevented. A waterproof groove or an annular protrusion can increase the binding force between the metal insert and the plastic pipe fitting; when the metal insert and the plastic pipe fitting are separated accidentally, a sealing ring can play a role of sealing to prevent seepage of water flow.
Description
Technical field
The invention belongs to feedwater/supply air line field, be specifically related to a kind of connection pipe fitting of the band metal insert for pipeline connection.
Background technique
In order to improve the resistance to heat of the connection pipe fitting of band metal insert, in prior art, usually prepare the plastic pipe of connection pipe fitting with polybutylene.But the connection pipe fitting intensity that polybutylene obtains is lower, during installation, in the rotational fastener process of screw thread double thread, connection pipe fitting outer plastic pipe fitting is subject to the clamping force of pipe wrench, and the metal insert of connection pipe fitting inside is subject to reverse torsion, easily cause the disengaging of circumferential surface metal and plastics when torsion is excessive.Meanwhile, in long-term feedwater or air feed process, cold and heat succeed each other, because plastic pipe is different with the expansion coefficient of metal insert, when expanding with heat and contract with cold, between metal insert and plastic pipe, easily produce gap, thus occur seepage.
Summary of the invention
In order to overcome defect of the prior art, the invention provides a kind of connection pipe fitting with metal insert.
Object of the present invention is achieved through the following technical solutions:
With a connection pipe fitting for metal insert, it comprises plastic pipe and metal insert; Described metal insert is arranged in described plastic pipe, is close to the internal surface of described plastic pipe; Described connection pipe fitting also comprises retaining ring, and described retaining ring is arranged on the outer surface of described plastic pipe, for reinforcing described plastic pipe.
Preferably, the internal surface of described metal insert is provided with screw thread, and outer surface is provided with several convex tendons; Described convex tendon embeds described plastic pipe, fits tightly with described plastic pipe.
Preferably, the number of described convex tendon 31 is 2,3,4 or 5, and described convex tendon is evenly distributed in the periphery of described metal insert.
Preferably, the prismatic or swallow-tail form of the shape of described convex tendon; When described convex tendon shape is swallow-tail form, the angle of its dovetail is 15 ~ 30 °.
Preferably, the height of described convex tendon is 1.0 ~ 3.5mm.
Preferably, described metal insert outer surface is provided with capillary groove, and described capillary groove is the annular groove being arranged on metal insert outer surface; Or at the outer surface of described metal insert, annular protrusion is set;
The degree of depth of described capillary groove or the height of described annular protrusion are 1.0 ~ 3.0mm.
Preferably, in described capillary groove, seal ring is provided with; The wire diameter of described seal ring is consistent with the degree of depth of described capillary groove.
Preferably, described retaining ring is located at the outer surface of described plastic pipe; Or embed described plastic pipe; When retaining ring embeds described plastic pipe, the outer surface of retaining ring and the outer surface of described plastic pipe are presented axially in same plane;
Described retaining ring is evenly distributed on position corresponding with the screw thread of described metal insert internal surface on described plastic pipe outer surface;
The number of described retaining ring is 1,2,3 or 4.
Preferably, described connection pipe fitting is elbow, straight-through, threeway or four-way.
Preferably, in the connection pipe fitting water supply pipeline of described band metal insert, the connection between water pipe; Or in supply air line, the connection between tracheae.
Compared with prior art, the present invention has the following advantages:
1) connection pipe fitting of the present invention is provided with retaining ring, and in its process that can prevent connection pipe fitting from installing, plastic pipe and metal insert depart from, thus prevent from, in using process, water leakage phenomenon occurs.
2) the present invention arranges convex tendon at metal insert outer surface, the disengaging of the excessive plastic pipe that causes of torsion and metal insert when described convex tendon can prevent from installing, thus prevents the phenomenon that joint between plastic pipe and metal insert leaks.
3) capillary groove of the present invention or annular protrusion can increase the combination force between described metal insert and described plastic pipe; When described metal insert and described plastic pipe depart from accidentally time, described seal ring can play the effect of sealing, prevents current seepage.
Accompanying drawing explanation
Fig. 1 is the front section view of the connection pipe fitting of present pre-ferred embodiments.
Fig. 2 is the side view of the connection pipe fitting of present pre-ferred embodiments.
Fig. 3 is the sectional view along A-A face in Fig. 1.
Fig. 4 is the cross section along B-B face in Fig. 1.
Here the component names corresponding to each reference character is listed:
10-plastic pipe
30-metal insert
31-convex tendon
33-capillary groove
50-retaining ring
70-seal ring
Embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail, but embodiments of the present invention are not limited thereto, for the process parameter do not indicated especially, can refer to routine techniques and carry out.
Connection pipe fitting of the present invention may be used for the connection of the pipeline junction such as conduit pipe and pneumatic tube pipeline, in the preferred embodiment, is applied to aqueduct joint is illustrated for it.
Refer to Fig. 1-3, the connection pipe fitting 100 of the band metal insert of present pre-ferred embodiments comprises plastic pipe 10, metal insert 30 and retaining ring 50.Described metal insert 30 is arranged in described plastic pipe 10, is close to the internal surface of described plastic pipe 10.Described retaining ring 50 is arranged on the outer surface of described plastic pipe 10, and for reinforcing described plastic pipe 10, in the process preventing described connection pipe fitting 100 from installing, plastic pipe 10 and metal insert 30 depart from, thus prevent from, in using process, water leakage phenomenon occurs.
In the preferred embodiment, described plastic pipe 10 is made up of polybutylene.Its resistance to heat is good, may be used for the joint of cool and hot water pipe.
In the preferred embodiment, the internal surface of described metal insert 30 is provided with screw thread, and outer surface is provided with several convex tendons 31.Described convex tendon 31 embeds described plastic pipe 10, fits tightly with described plastic pipe 10.When connection pipe fitting 100 is installed, the plastic pipe 10 of described connection pipe fitting 100 is subject to the clamping force of pipe wrench, described metal insert 30 is subject to reverse torsion, described convex tendon 31 can prevent the disengaging of the plastic pipe 10 and metal insert 30 caused when torsion is excessive, thus prevents the phenomenon that between plastic pipe 10 and metal insert 30, joint leaks.
The number of described convex tendon 31 is preferably 2,3,4,5, and described convex tendon 31 is evenly distributed in the periphery of described metal insert 30.The shape of described convex tendon 31 is preferably prismatic or swallow-tail form, and when described convex tendon 31 shape is swallow-tail form, the angle of its dovetail is 15 ~ 30 °.The height of described convex tendon 31 is 1.0 ~ 3.5mm.
Described metal insert 30 outer surface is provided with capillary groove 33, and described capillary groove 33 is for being arranged on the annular groove of metal insert 30 outer surface; Or at the outer surface of described metal insert 30, annular protrusion (not shown) is set.Preferably, the degree of depth of described capillary groove 33 or the height of described annular protrusion are 1.0 ~ 3.0mm.Described capillary groove 33 or annular protrusion can increase the combination force between described metal insert 30 and described plastic pipe 10, and when described metal insert 30 and described plastic pipe 10 combine not good time, it can play certain barrier effect, and anti-sealing is from the gap leakage between described metal insert 30 and described plastic pipe 10.
In the preferred embodiment, in described capillary groove 33, seal ring 70 is provided with.The wire diameter of described seal ring 70 is consistent with the degree of depth of described capillary groove 33.Described seal ring 70 is obtained by elastomer or rubber type of material.When described metal insert 30 and described plastic pipe 10 depart from accidentally time, described seal ring 70 can play the effect of sealing, prevents current seepage.
In the preferred embodiment, described retaining ring 50 can be arranged on the outer surface of described plastic pipe 10, also can embed described plastic pipe 10.When retaining ring 50 embeds described plastic pipe 10, the outer surface of retaining ring 50 and the outer surface of described plastic pipe 10 are presented axially in same plane.Described retaining ring 50 is evenly distributed on position corresponding with the screw thread of described metal insert 30 internal surface on described plastic pipe 10 outer surface.The number of described retaining ring 50 can be 1,2,3 or 4.
In the preferred embodiment, described connection pipe fitting 100 of the present invention can be the joints such as elbow, straight-through, threeway or four-way.
In the preferred embodiment, in connection pipe fitting 100 water supply pipeline of the present invention, the connection between water pipe.In addition, the present invention can also be used in supply air line, the connection between tracheae.
The present invention is by the Combination Design of convex tendon, steel loop and seal ring, and the circumferential torsion that can solve in installation occurs gap with the plastic-metal junction plane of the radial pull generation colded and heat succeed each other.The connection pipe fitting 100 of the present invention's design is after the torsion of 80N is installed, and the test of standard cold cycling does not also occur Seepage by 6000 circulations.
The present invention is not limited to above-mentioned mode of execution, if do not depart from the spirit and scope of the present invention to various change of the present invention or distortion, if these are changed and distortion belongs within claim of the present invention or equivalent technologies scope, then the present invention is also intended to comprise these changes and distortion.
Claims (10)
1. the connection pipe fitting with metal insert, it comprises plastic pipe and metal insert; Described metal insert is arranged in described plastic pipe, is close to the internal surface of described plastic pipe; It is characterized in that, described connection pipe fitting also comprises retaining ring, and described retaining ring is arranged on the outer surface of described plastic pipe, for reinforcing described plastic pipe.
2. the connection pipe fitting of band metal insert according to claim 1, is characterized in that, the internal surface of described metal insert is provided with screw thread, and outer surface is provided with several convex tendons; Described convex tendon embeds described plastic pipe, fits tightly with described plastic pipe.
3. the connection pipe fitting of band metal insert according to claim 2, is characterized in that, the number of described convex tendon 31 is 2,3,4 or 5, and described convex tendon is evenly distributed in the periphery of described metal insert.
4. the connection pipe fitting of band metal insert according to claim 3, is characterized in that, the prismatic or swallow-tail form of the shape of described convex tendon; When described convex tendon shape is swallow-tail form, the angle of its dovetail is 15 ~ 30 °.
5. the connection pipe fitting of band metal insert according to claim 4, is characterized in that, the height of described convex tendon is 1.0 ~ 3.5mm.
6. the connection pipe fitting of band metal insert according to claim 5, is characterized in that, described metal insert outer surface is provided with capillary groove, and described capillary groove is the annular groove being arranged on metal insert outer surface; Or at the outer surface of described metal insert, annular protrusion is set;
The degree of depth of described capillary groove or the height of described annular protrusion are 1.0 ~ 3.0mm.
7. the connection pipe fitting of band metal insert according to claim 6, is characterized in that, in described capillary groove, be provided with seal ring; The wire diameter of described seal ring is consistent with the degree of depth of described capillary groove.
8. the connection pipe fitting of band metal insert according to claim 7, is characterized in that, described retaining ring is located at the outer surface of described plastic pipe; Or embed described plastic pipe; When retaining ring embeds described plastic pipe, the outer surface of retaining ring and the outer surface of described plastic pipe are presented axially in same plane;
Described retaining ring is evenly distributed on position corresponding with the screw thread of described metal insert internal surface on described plastic pipe outer surface;
The number of described retaining ring is 1,2,3 or 4.
9. the connection pipe fitting of band metal insert according to claim 8, is characterized in that, described connection pipe fitting is elbow, straight-through, threeway or four-way.
10. the connection pipe fitting of the band metal insert according to claim 1-9 any one, is characterized in that, in the connection pipe fitting water supply pipeline of described band metal insert, and the connection between water pipe; Or in supply air line, the connection between tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510486799.4A CN105179833A (en) | 2015-08-07 | 2015-08-07 | Connecting pipe fitting with metal insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510486799.4A CN105179833A (en) | 2015-08-07 | 2015-08-07 | Connecting pipe fitting with metal insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179833A true CN105179833A (en) | 2015-12-23 |
Family
ID=54902122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510486799.4A Pending CN105179833A (en) | 2015-08-07 | 2015-08-07 | Connecting pipe fitting with metal insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179833A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916255A (en) * | 2018-09-19 | 2018-11-30 | 珠海格力电器股份有限公司 | Spline housing for motor, rotor assembly, motor and household appliance |
| CN110274116A (en) * | 2019-05-30 | 2019-09-24 | 青岛华涛汽车模具有限公司 | A kind of automobile cooling water nylon water pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410708B (en) * | 2000-07-25 | 2003-07-25 | Ke Kelit Kunststoffwerk Gmbh | Shaped piece for guiding a flow medium, particularly in water duct installations |
| CN201007410Y (en) * | 2007-02-07 | 2008-01-16 | 佛山市日丰企业有限公司 | Pipe fitting with screw connection |
| KR20110064378A (en) * | 2009-12-08 | 2011-06-15 | 덕산금속 주식회사 | The faucet connection plumbing |
| CN201891959U (en) * | 2010-11-15 | 2011-07-06 | 江苏辉达塑模科技有限公司 | Hooping mechanism of water supplying pipeline connector body |
| CN202100881U (en) * | 2011-05-25 | 2012-01-04 | 吴伟国 | Straight joint with metal sleeve |
| CN103867821A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Sealing structure for water supply and drainage pipe fitting |
-
2015
- 2015-08-07 CN CN201510486799.4A patent/CN105179833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410708B (en) * | 2000-07-25 | 2003-07-25 | Ke Kelit Kunststoffwerk Gmbh | Shaped piece for guiding a flow medium, particularly in water duct installations |
| CN201007410Y (en) * | 2007-02-07 | 2008-01-16 | 佛山市日丰企业有限公司 | Pipe fitting with screw connection |
| KR20110064378A (en) * | 2009-12-08 | 2011-06-15 | 덕산금속 주식회사 | The faucet connection plumbing |
| CN201891959U (en) * | 2010-11-15 | 2011-07-06 | 江苏辉达塑模科技有限公司 | Hooping mechanism of water supplying pipeline connector body |
| CN202100881U (en) * | 2011-05-25 | 2012-01-04 | 吴伟国 | Straight joint with metal sleeve |
| CN103867821A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Sealing structure for water supply and drainage pipe fitting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916255A (en) * | 2018-09-19 | 2018-11-30 | 珠海格力电器股份有限公司 | Spline housing for motor, rotor assembly, motor and household appliance |
| CN108916255B (en) * | 2018-09-19 | 2023-08-22 | 珠海格力电器股份有限公司 | Spline housing for motor, rotor assembly, motor and household appliance |
| CN110274116A (en) * | 2019-05-30 | 2019-09-24 | 青岛华涛汽车模具有限公司 | A kind of automobile cooling water nylon water pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 528000 Guangdong province Foshan City Temple Road No. 16 HSBC Building 8 floor Applicant after: RIFENG ENTERPRISE GROUP CO., LTD. Applicant after: WENZHOU RIFENG TECHNOLOGY CO., LTD. Address before: 528000 Guangdong province Foshan City Temple Chancheng District of Foshan City Road 16, HSBC Building 8 floor Applicant before: Rifeng Enterprise Co., Ltd., Foshan Applicant before: Foshan market day rich science and technology in enterprise company limited |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |
|
| WD01 | Invention patent application deemed withdrawn after publication |