CN203892781U - Novel PPR pipe joint - Google Patents
Novel PPR pipe joint Download PDFInfo
- Publication number
- CN203892781U CN203892781U CN201420344482.8U CN201420344482U CN203892781U CN 203892781 U CN203892781 U CN 203892781U CN 201420344482 U CN201420344482 U CN 201420344482U CN 203892781 U CN203892781 U CN 203892781U
- Authority
- CN
- China
- Prior art keywords
- ppr pipe
- joint
- pipe fitting
- novel
- pipe joint
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a novel PPR pipe joint and belongs to the technical field of machines. The novel PPR pipe joint solves the problem that the structural strength of an existing PPR pipe joint is poor. The PPR pipe joint comprises a fixing joint and a nut casing pipe in threaded connected with the fixing joint. The end of the nut casing pipe is provided with an annular step protruding inwards. A PPR pipe fitting is arranged in the nut casing pipe in a sleeved mode. One end of the PPR pipe fitting abuts against the annular step, and the other end of the PPR pipe fitting abuts against the fixing joint. A sealing ring is arranged between the PPR pipe fitting and the fixing joint. According to the novel PPR pipe joint, as the PPR pipe fitting is arranged in the nut casing pipe, and the nut casing pipe protects the PPR pipe fitting, the structural strength of the PPR pipe fitting is higher after connection is finished through the joint, and the compression resistance and the anti-frost property are higher.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of hot-water heating joint, particularly a kind of PPR pipe joint.
Background technique
In pipeline construction; conventionally can use a lot of joints; the material using also has a lot; for example there are plastic material, metallic iron material, metallic copper material; because PPR material has the features such as heat-resisting, corrosion-resistant, the pipe joint that therefore PPR material is made is generally used for the assembling of hot water pipeline.
PPR pipe joint is able to extensive use in plumbing pipe system at present, PPR pipe joint of the prior art is as shown in Chinese patent (notice of authorization CN202195223U), it comprises attaching nut, tube connector is installed in attaching nut, the oral area of tube connector stretches out outside one of attaching nut, and attaching nut's other end connecting thread joint, is provided with seal ring between inipple and tube connector, when use, the each autogenous welding connecting tube of tube connector and inipple material.It has advantages of easy to assembly.But the pipe fitting part of the PPR pipe joint in above-mentioned patent is exposed completely, when through sweat soldering, easily cause its structural strength to reduce, affect its resistance to compression and anti-freezing property.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of structural strength high, the PPR pipe joint of resistance to compression and good frost resistance.
The purpose of this utility model can realize by following technical proposal: a kind of novel PPR pipe joint, the nut casing that comprises permanent joint and be threaded with permanent joint, it is characterized in that, described nut casing end is provided with to projecting inward ring-shaped step, in described nut casing, be arranged with PPR pipe fitting, described PPR pipe fitting one end is resisted against on ring-shaped step, and the other end is resisted against on permanent joint, between described PPR pipe fitting and permanent joint, is provided with seal ring.
Nut casing inwall is provided with the internal thread being connected with permanent joint, described PPR pipe fitting one end is resisted against on ring-shaped step, the other end is resisted against on permanent joint, and the screw thread between fastening nut sleeve pipe and permanent joint is fixed between nut casing and permanent joint PPR pipe fitting.
In above-mentioned novel PPR pipe joint, described permanent joint is provided with the annular groove for seal ring is installed.For convenience of the installation of seal ring, improve the sealing of seal ring, seal ring is installed on and in annular groove, makes the sealing effect of seal ring more firm.
In above-mentioned novel PPR pipe joint, described seal ring one side is provided with the annular relief that can embed in above-mentioned annular groove.
In above-mentioned novel PPR pipe joint, described permanent joint is male connection.
In above-mentioned novel PPR pipe joint, described outside thread is provided with annular knurl.
As another kind of scheme, in above-mentioned novel PPR pipe joint, described permanent joint is female adapter.
In above-mentioned novel PPR pipe joint, described internal thread is provided with annular knurl.
In above-mentioned novel PPR pipe joint, described PPR pipe fitting is hollow shape, and its inwall away from ring-shaped step one end is provided with installation step.When installation, due to the existence of installation step, only need tubing good hot melt to insert PPR pipe fitting until abut to installation step.
Compared with prior art, the PPR pipe fitting of this novel PPR pipe joint is arranged in nut casing, and nut casing plays a protective role to PPR pipe fitting, makes this joint higher in the structural strength that completes PPR pipe fitting after connection, and compression resistance and anti-freezing property are higher.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of this novel PPR pipe joint.
In figure, 1, permanent joint; 11, annular groove; 2, nut casing; 21, ring-shaped step; 3, PPR pipe fitting; 31, installation step; 4, seal ring; 41, lug boss.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the nut casing 2 that this novel PPR pipe joint comprises permanent joint 1 and is threaded with permanent joint 1, described nut casing 2 inwalls are provided with the internal thread being connected with permanent joint 1, described nut casing 2 ends are provided with to projecting inward ring-shaped step 21, in described nut casing 2, be also arranged with PPR pipe fitting 3, described PPR pipe fitting 3 one end are resisted against on ring-shaped step 21, and the other end is resisted against on permanent joint 1, between described PPR pipe fitting 3 and permanent joint 1, are provided with seal ring 4.The end that described permanent joint 1 is connected with nut casing 2 is provided with the annular groove 11 for seal ring 4 is installed, and described seal ring 4 one sides are provided with annular relief 41 that can embedded rings connected in star 11.By the cooperation of annular groove 11 and annular relief 41, improve the sealing effect of joint.
This novel PPR pipe joint is used for being connected to pipeline, and described permanent joint 1 is male connection, and described outside thread is provided with annular knurl, improves the reliability and the aesthetic property that are threaded.Described PPR pipe fitting 3 is hollow shape, and its inwall away from ring-shaped step 21 one end is provided with installation step 31.When installation, due to the existence of installation step 31, only need tubing good hot melt to insert the good PPR pipe fitting 3 of hot melt until tubing abuts to installation step 31.
This novel PPR pipe joint is owing to being arranged at PPR pipe fitting 3 in nut casing 2, and nut casing 2 plays a protective role to PPR pipe fitting 3, makes this joint higher in the structural strength that completes PPR pipe fitting 3 after connection, and compression resistance and anti-freezing property are higher.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. a novel PPR pipe joint, the nut casing (2) that comprises permanent joint (1) and be threaded with permanent joint (1), it is characterized in that, described nut casing (2) end is provided with to projecting inward ring-shaped step (21), in described nut casing (2), be arranged with PPR pipe fitting (3), described PPR pipe fitting (3) one end is resisted against on ring-shaped step (21), it is upper that the other end is resisted against permanent joint (1), between described PPR pipe fitting (3) and permanent joint (1), is provided with seal ring (4).
2. novel PPR pipe joint according to claim 1, is characterized in that, described permanent joint (1) is provided with the annular groove (11) for seal ring (4) are installed.
3. novel PPR pipe joint according to claim 2, is characterized in that, described seal ring (4) one side is provided with the annular relief (41) that can embed in above-mentioned annular groove (11).
4. according to the novel PPR pipe joint described in claim 1 or 2 or 3, it is characterized in that, described permanent joint (1) is male connection.
5. novel PPR pipe joint according to claim 4, is characterized in that, described outside thread is provided with annular knurl.
6. according to the novel PPR pipe joint described in claim 1 or 2 or 3, it is characterized in that, described permanent joint (1) is female adapter.
7. novel PPR pipe joint according to claim 6, is characterized in that, described internal thread is provided with annular knurl.
8. according to the novel PPR pipe joint described in claim 1 or 2 or 3, it is characterized in that, described PPR pipe fitting (3) is hollow shape, and its inwall away from ring-shaped step (21) one end is provided with installation step (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344482.8U CN203892781U (en) | 2014-06-25 | 2014-06-25 | Novel PPR pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344482.8U CN203892781U (en) | 2014-06-25 | 2014-06-25 | Novel PPR pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892781U true CN203892781U (en) | 2014-10-22 |
Family
ID=51719186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420344482.8U Expired - Fee Related CN203892781U (en) | 2014-06-25 | 2014-06-25 | Novel PPR pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324703A (en) * | 2021-06-03 | 2021-08-31 | 国网四川省电力公司成都供电公司 | Online monitoring method for water inlet and moisture of cable joint |
-
2014
- 2014-06-25 CN CN201420344482.8U patent/CN203892781U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324703A (en) * | 2021-06-03 | 2021-08-31 | 国网四川省电力公司成都供电公司 | Online monitoring method for water inlet and moisture of cable joint |
| CN113324703B (en) * | 2021-06-03 | 2022-12-02 | 国网四川省电力公司成都供电公司 | Online monitoring method for water inlet and moisture of cable joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |