CN202100857U - Stuffing box type compensating joint - Google Patents
Stuffing box type compensating joint Download PDFInfo
- Publication number
- CN202100857U CN202100857U CN2011202050774U CN201120205077U CN202100857U CN 202100857 U CN202100857 U CN 202100857U CN 2011202050774 U CN2011202050774 U CN 2011202050774U CN 201120205077 U CN201120205077 U CN 201120205077U CN 202100857 U CN202100857 U CN 202100857U
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- gland
- compensating joint
- expansion pipe
- box type
- 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
Links
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a stuffing box type compensating joint which comprises a body and an expansion pipe capable of being sleeved in the body. A gland is arranged between an excircle of the expansion pipe and the body. A stuffing box is formed by the gland, the excircle of the expansion pipe and the body. Both ends inside the stuffing box are provided with bushings. A rubber sealing ring and a graphite packing layer are arranged between the bushings at intervals. A fixed bolt is inserted between the gland and the body. A set screw nut is arranged for matching with the fixed bolt. For the stuffing box type compensating joint, the sealing ring is pressed by the gland through screwing down the bolt and the nut, so that the sealing ring is elastically deformed to squeeze the body and the expansion pipe to fulfill the sealing aim and the expansion pipe is ensured to slide relative to the body without leakage. The stuffing box type compensating joint not only has a simple structure, but also has a good sealing effect and high safety and reliability.
Description
Technical field
The utility model relates to a kind of pipe coupling, and is particularly related to a kind of stuffing box formula compensating joint of good sealing effect.
Background technique
At present; Various pipe-line systems are for example: gas pipe line, and water supply line, oil transport pipelines etc. are applied in the daily life widely; But in the process of deployment of various pipe-line systems, often to consider serious owing to surface subsidence, vibrations are big, with a varied topography and seasonal variations and day and night the pipeline deflection that produces greatly of the temperature difference and expand with heat and contract with cold etc. all can pipeline be produced serious influence; General solution is that axial displacement and the deflection angle off-centre that compensating joint remedies pipeline is set in the process of deployment of pipeline, but can cause leakage because of the pipe coupling poor sealing like this; Possibly cause bigger security incident; So high to its sealing and reliability requirement, traditional pipe coupling ubiquity complex structure, the shortcoming that sealing effect is bad and safety reliability is not high.
The model utility content
The purpose of the utility model is to provide a kind of stuffing box formula compensating joint, and it has simple in structure, the characteristics that good sealing effect and safety reliability are high.
The purpose of the utility model is to realize through following technological scheme:
A kind of stuffing box formula compensating joint; It comprises body and is sheathed on intrinsic telescopic pipe, wherein, is provided with gland between said telescopic pipe cylindrical and the body; Said gland; Telescopic pipe cylindrical and body form stuffing box, are provided with seal arrangement in the said stuffing box, and said gland is connected with body through fastening piece.
Two ends in the said stuffing box are provided with lining.
Said seal arrangement is arranged between the lining, and it is rubber seal and the graphite packing layer that is provided with at interval.
Said fastening piece comprises the fixing bolt that is arranged between body and the gland, and the matching and fixing bolt is provided with set screw nut.
The beneficial effect of the utility model is that said stuffing box formula compensating joint is arranged at intervals with rubber seal and graphite packing layer in the stuffing box that is formed by body, gland and telescopic pipe in the said stuffing box; Through tighting a bolt and nut makes gland compress seal ring; Thereby make seal ring generation resiliently deformable extrusion body and telescopic pipe reach sealing purpose, the assurance telescopic pipe slides with respect to body and do not leak, and is not only simple in structure; And good sealing effect, safety reliability is high.
Description of drawings
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 is the structural representation of the utility model stuffing box formula compensating joint.
Among the figure:
1, body; 2, telescopic pipe; 3, gland; 4, stuffing box; 5, lining; 6, rubber seal; 7, graphite packing layer; 8, fixing bolt; 9, set screw nut.
Embodiment
Please with reference to shown in Figure 1, Fig. 1 is the structural representation of the utility model stuffing box formula compensating joint, in present embodiment; A kind of stuffing box formula compensating joint, it comprises body 1 and is sheathed on the telescopic pipe 2 in the body 1, is provided with gland 3 between said telescopic pipe 2 cylindricals and the body 1; Said gland 3; Telescopic pipe 2 cylindricals and body 1 form stuffing box 4, and the two ends in the said stuffing box 4 are provided with lining 5, are arranged at intervals with rubber seal 6 and graphite packing layer 7 between the said lining 5; And be equipped with fixing bolt 8 between said gland 3 and the body 1, matching and fixing bolt 8 is provided with set screw nut 9.
Said stuffing box formula compensating joint is in the stuffing box 4 that is formed by body 1, gland 3 and telescopic pipe 2 cylindricals; Be arranged at intervals with rubber seal 6 and graphite packing layer 7 in the said stuffing box 4; Make gland 3 compress seal ring through tightening fixing bolt 8 and set screw nut 9; Thereby make seal ring generation resiliently deformable extrusion body 1 and telescopic pipe 2 reach sealing purpose, assurance telescopic pipe 2 slides with respect to body 1 and does not leak; Graphite packing layer 7 has lubricated and resistant to elevated temperatures characteristics; If telescopic pipe 2 only need be tightened set screw nut 9 and just can seal once more owing to form leakage behind the frequent skimming wear seal ring.
Claims (4)
1. stuffing box formula compensating joint; It comprises body and is sheathed on intrinsic telescopic pipe; It is characterized in that: be provided with gland between said telescopic pipe cylindrical and the body, said gland, telescopic pipe cylindrical and body form stuffing box; Be provided with seal arrangement in the said stuffing box, and said gland is connected with body through fastening piece.
2. stuffing box formula compensating joint according to claim 1 is characterized in that: the two ends in the said stuffing box are provided with lining.
3. stuffing box formula compensating joint according to claim 1, it is characterized in that: said seal arrangement is arranged between the lining, and it is rubber seal and the graphite packing layer that is provided with at interval.
4. according to claim 1,2 or 3 each described stuffing box formula compensating joints, it is characterized in that: said fastening piece comprises the fixing bolt that is arranged between body and the gland, and the matching and fixing bolt is provided with set screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202050774U CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105110847A CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
| CN201010511084.7 | 2010-10-19 | ||
| CN2011202050774U CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100857U true CN202100857U (en) | 2012-01-04 |
Family
ID=43575220
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105110847A Pending CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
| CN2011202050774U Expired - Fee Related CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105110847A Pending CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101975317A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013177742A1 (en) * | 2012-05-28 | 2013-12-05 | Gao Hongbing | Marine expansion joint with stuffing box |
| CN103759010B (en) * | 2014-01-21 | 2015-12-09 | 中国成达工程有限公司 | For the packing shaft seal structure of high pressure reciprocating pump |
| CN105443760B (en) * | 2014-09-30 | 2019-08-23 | 日本皮拉工业株式会社 | Gland sealing |
| CN105371044B (en) * | 2015-12-17 | 2017-10-20 | 安徽盛运环保工程有限公司 | Large Diameter Pipeline high temperature resistant one-way expansion section |
| CN108772026B (en) * | 2018-06-24 | 2024-04-26 | 唐山三友硅业股份有限公司 | Gas distributor for gas-solid catalytic tower reactor |
| US11746940B2 (en) | 2019-03-19 | 2023-09-05 | Saipem S.P.A. | Pipeline telescopic joint |
| CN112901774B (en) * | 2021-01-13 | 2022-12-30 | 西安近代化学研究所 | Laminated radial annular sealing device capable of compensating coaxial cylindrical surface gap |
-
2010
- 2010-10-19 CN CN2010105110847A patent/CN101975317A/en active Pending
-
2011
- 2011-06-17 CN CN2011202050774U patent/CN202100857U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101975317A (en) | 2011-02-16 |
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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: 20120104 Termination date: 20170617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |