CN202646996U - Flexible joint - Google Patents
Flexible joint Download PDFInfo
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- CN202646996U CN202646996U CN 201220243629 CN201220243629U CN202646996U CN 202646996 U CN202646996 U CN 202646996U CN 201220243629 CN201220243629 CN 201220243629 CN 201220243629 U CN201220243629 U CN 201220243629U CN 202646996 U CN202646996 U CN 202646996U
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- joint
- flexible joint
- utility
- pipeline
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Abstract
The utility model provides a flexible joint, which comprises a casing, wherein the casing is a semicircular metal body, a joint key is arranged at the bottom surface of the casing, and connecting parts are arranged at two ends of the casing. The flexible joint provided by the utility model has the advantages that the pipeline connection is more reliable, in addition, the structure is simple, the pipeline construction and the installation are faster and more convenient, convenience, safety and reliability are realized, and the cost is low.
Description
Technical field
The utility model relates to the pipe fittings technical field, particularly a kind of flexible joint of pipeline.
Background technique
The fluted joint of the tool that provides in the prior art is when pipeline is in heavy caliber, and the specification of groove dimensions is on the high side, and the number of times of changing pinch roller when making the groove of pipeline is also many, cumbersome like this.
For the pipe-line system of large specification, the groove of the pipeline that provides in the prior art can be subject to the considerable influence of outer diameter tube error and construction error, thereby some insecurity that exist pipeline to connect are not the most reliable in other words.
The model utility content
The utility model provides a kind of flexible joint, makes the connection of pipeline more reliable, and simple in structure.
To achieve these goals, the utility model provides following technological scheme:
A kind of flexible joint, it comprises: housing, described housing are semicircular metal body, and the bottom surface of described housing is provided with the joint key, and the two ends of described housing are provided with joint.
Preferably, be provided with screw on the described joint, be equiped with bolt on the described screw, the head end of described bolt is equiped with nut.
Preferably, the bottom surface of described housing also is lined with seal ring.
By implementing above technological scheme, have following technique effect: the flexible joint that the utility model provides, make the connection of pipeline more reliable, and simple in structure, pipeline construction is installed faster, convenient, safety, reliable, cost is low.
Description of drawings
The structural representation of the flexible joint that Fig. 1 provides for the utility model.
The application schematic diagram of the flexible joint that Fig. 2 provides for the utility model
Embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of flexible joint, as shown in Figure 1, comprising: housing 101, and described housing 101 is semicircular metal body, and the bottom surface of described housing 101 is provided with the joint key, and the two ends of described housing 101 are provided with joint.
In the above-described embodiments, more specifically, be provided with screw on the described joint 105, be equiped with bolt 104 on the described screw, the head end of described bolt 104 is equiped with nut 103.
In other embodiment, on above-described embodiment basis, further, the bottom surface of described housing 101 also is lined with seal ring 102.Preferably, described seal ring 102 is the E RunddichtringO.This street corner key mapping is in the groove of this E RunddichtringO.
The seal ring that above-described embodiment provides is realized triple seal, and is specific as follows:
The first resealing:
Owing to being flexible joint, the base angle diameter of seal ring is slightly less than outer diameter tube, and the length of sealing surface is much larger than the sealing surface of pipeline groove, when being installed to pipe surface, the sealing lip drift angle inner-diameter portion whose of seal ring enlarges, because the elasticity of rubber, make the seal ring tensioner in pipe surface, provide a part of impacting force by sealing lip to pipe surface, thereby realize the first resealing, be i.e. the sealing of O type ring type.
The second resealing:
Because the Seal cage internal diameter of the housing of joint and seal ring external diameter coupling, in installation process, fastening by bolt is so that seal ring slowly is adjacent to pipe surface and gradually reduces, until housing is in place (metal to metal), at this moment seal ring also all compresses and puts in place.Seal ring reduces owing to compression makes highly, because the elasticity of rubber makes seal ring be pressed in pipe surface, again provides impacting force by sealing lip to pipe surface, thereby realizes the second resealing, be i.e. gasket type sealing.
Triple seal:
Also pressurize when pipe interior is full of medium, according to hydromechanical principle, the pressure of medium acts on the surface of internal cavity of seal ring uniformly, and vertical with surface of contact.The pressure of medium is applied to pipe surface again by sealing lip, and is applied to pipe surface, thereby forms triple seal, i.e. reaction equation sealing.
The flexible joint that the utility model provides makes the connection of pipeline more reliable, and simple in structure, pipeline construction is installed faster, convenient, and safety, reliable, cost is low.In addition, realize being connected with the groove of pipeline by the joint key of this joint, joint key and the channel bottom of flexible joint leave certain gap, to realize the functions such as axial displacement, angular deflection and rotation of this flexible joint on pipeline.This flexible joint makes the pipeline switching performance more reliable, and sealability is higher, solves effectively that pipe-line system is expanded with heat and contract with cold and sedimentation, and effectively vibration resistance has been eliminated the harm that earthquake brings.Superior performance and the intensity of structure are more applicable for the buried pipeline system.
Above a kind of flexible joint that the utility model embodiment is provided is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a flexible joint is characterized in that, comprising: housing, described housing are semicircular metal body, and the bottom surface of described housing is provided with the joint key, and the two ends of described housing are provided with joint.
2. as claimed in claim 1 flexible joint is characterized in that, is provided with screw on the described joint, is equiped with bolt on the described screw, and the head end of described bolt is equiped with nut.
3. as claimed in claim 1 or 2 flexible joint is characterized in that, the bottom surface of described housing also is lined with seal ring.
4. as claimed in claim 3 flexible joint is characterized in that, described seal ring is the E RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243629 CN202646996U (en) | 2012-05-29 | 2012-05-29 | Flexible joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243629 CN202646996U (en) | 2012-05-29 | 2012-05-29 | Flexible joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646996U true CN202646996U (en) | 2013-01-02 |
Family
ID=47416104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243629 Expired - Lifetime CN202646996U (en) | 2012-05-29 | 2012-05-29 | Flexible joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256441A (en) * | 2013-05-23 | 2013-08-21 | 南通中正机械有限公司 | Novel pipeline flexible joint |
-
2012
- 2012-05-29 CN CN 201220243629 patent/CN202646996U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256441A (en) * | 2013-05-23 | 2013-08-21 | 南通中正机械有限公司 | Novel pipeline flexible joint |
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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 |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |