CN203823290U - Pipe joint with axial retraction and radial movement - Google Patents
Pipe joint with axial retraction and radial movement Download PDFInfo
- Publication number
- CN203823290U CN203823290U CN201320629034.8U CN201320629034U CN203823290U CN 203823290 U CN203823290 U CN 203823290U CN 201320629034 U CN201320629034 U CN 201320629034U CN 203823290 U CN203823290 U CN 203823290U
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- China
- Prior art keywords
- capping
- axial
- end cap
- fixed cover
- pipe joint
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- Expired - Fee Related
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Abstract
The utility model discloses a pipe joint with axial retraction and radial movement. A pipe joint structure comprises an end cap fastened on the lower end of a first pipe body and a fixing sleeve sleeved on a second pipe body, wherein an end cap hole, through which the upper end of the second pipe body passes from bottom to up is formed in the end cap; the end cap hole is a long hole radially extending along the first pipe body and in guide moving match with the second pipe body; an axial seal structure matching with the second pipe body is disposed in the fixing sleeve; one end of the fixing sleeve facing the end cap is provided with a seal reversed edge in slide friction match with the end cap and sealing the end cap hole during radial movements of the fixing sleeve; and an axial spacing structure limiting axial movements of the fixing sleeve is fastened on the end cap. For a bidirectional motive seal structure of the above structure and the pipe joint using the structure, self sealing effect can be guaranteed and requirements of axial and radial relative movements between the housing and a pipe and between pipes can be met, so practicality of seal pipe joint is improved.
Description
Technical field
The utility model relates to a kind of pipe joint.
Background technique
At present, the structural type of pipe joint has multiple, as straight coupling, tee union, elbow, band nut connector, transit joint etc., and the seal form of pipe joint mainly contains clearance seal, stuffing box packing sealing, the forms such as packing seal and mechanical sealing structure, these seal form can only realize between pipe and housing or between tube and tube, have vertically the circular seal of relative movement, when between pipe and housing or while having opposite planar motion radially between tube and tube, just there will be the plane sealing requirement of non-circular form, realize the existing axial seal of this while, the structure that has again radial plane sealing, the structural type of above-mentioned pipe joint all cannot meet this requirement.
Summary of the invention
The purpose of this utility model is to provide a kind of when guaranteeing sealing effect, can meet again axially and the sealed pipe joint of relative movement requirement radially.
The pipe joint of can axial stretching, moving radially of the present utility model adopts following technological scheme: a kind of pipe joint of can axial stretching, moving radially, comprise with the first body of upper flange and with the second body of lower flange, the lower end of the first body has capping, in capping, offer the capping hole of passing from lower to upper for the upper end of the second body, capping hole is slotted hole that radially extend along the first body, that coordinate with the second body guiding movement; On described the second body, be arranged with the fixed cover with the second body axial sliding fit, between fixed cover and the second body, be provided with axial seal structure, and one end towards capping of fixed cover has at fixed cover and moves radially and in process, coordinate with capping sliding friction and turn edge for the sealing in shutoff capping hole, is installed with the axially movable axial limit structure of restriction fixed cover in described capping.
Described fixed cover is arranged in the first body.
Described axial limit structure be installed on capping upper-end surface, two L shaped limiting boards that are arranged symmetrically in described capping hole length direction both sides, the horizontal segment of limiting board and the described sealing axial limiting block that turns edge coordinates.
The endoporus of described fixed cover is up big and down small shoulder hole, the internal diameter of described shoulder hole aperture section and the external diameter of fixed cover are adaptive, described axial seal structure is the stuffing box packing of filling in the fixed cover part of shoulder hole macropore section correspondence and the gap between the second body, and in shoulder hole macropore section, is also fitted with the Gland being sheathed on step surface on the second body, that described stuffing box packing top is pressed in to shoulder hole.
The annular protrusion turning on the inner peripheral surface of described capping has, is embedded with on the upper-end surface of annular protrusion and the described sealing annular red copper bar that sliding friction coordinates that turns edge.
Two-way movable sealing structure of the present utility model adopts following technological scheme: a kind of two-way movable sealing structure, comprise for be installed in the first body lower end capping and for be sheathed on the second body, with the fixed cover of the second body axial sliding fit, in described capping, offer the capping hole for passing from lower to upper for the upper end of the second body, capping hole is the slotted hole for radially extending along the first body, coordinate with the second body guiding movement; In described fixed cover, be provided with the axial seal structure for coordinating with the second body, and one end towards capping of fixed cover has at fixed cover and moves radially and in process, coordinate with capping sliding friction and turn edge for the sealing in shutoff capping hole, is installed with the axially movable axial limit structure of restriction fixed cover in described capping.
Described fixed cover is arranged in the first body.
Described axial limit structure be installed on capping upper-end surface, two L shaped limiting boards that are arranged symmetrically in described capping hole length direction both sides, the horizontal segment of limiting board and the described sealing axial limiting block that turns edge coordinates.
The endoporus of described fixed cover is up big and down small shoulder hole, the internal diameter of described shoulder hole aperture section and the external diameter of fixed cover are adaptive, described axial seal structure is the stuffing box packing of filling in the fixed cover part of shoulder hole macropore section correspondence and the gap between the second body, and in shoulder hole macropore section, is also fitted with the Gland being sheathed on step surface on the second body, that described stuffing box packing top is pressed in to shoulder hole.
The annular protrusion turning on the inner peripheral surface of described capping has, is embedded with on the upper-end surface of annular protrusion and the described sealing annular red copper bar that sliding friction coordinates that turns edge.
Adopt the two-way movable sealing structure of said structure and use the pipe joint of this structure, due to the slotted hole of capping hole for radially extending along the first body, realized the radial motion of relative the first body of the second body, and be set in the fixed cover on the second body, in moving radially process, the second body moves with the second body, and rely on the sealing of axial seal structure and the acting in conjunction that the sealing of capping endoporus shutoff is turned edge, guarantee sealing effect when the second body moves radially; Simultaneously under the effect of axial limit structure, the second body and fixed cover axial sliding fit, realize the axial stretching motion of relative the first body of the second body, relied on equally the seal action of axial seal structure, the sealing effect while guaranteeing the second body axial motion.Therefore, the two-way movable sealing structure of this structure and use the pipe joint of this structure, when guaranteeing self seal effect, can realize again between housing and pipe, between tube and tube axially and radially relative movement requirement, improved the practicability of sealed pipe joint.
Further, on the annular protrusion of capping, be embedded with and the red copper bar that seals the sliding friction that turns edge and coordinate, red copper bar reduced that sealing turns edge and capping between friction, also improved sealing effect simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of pipe joint of the present utility model structural representation;
Fig. 2 is that the A-A of Fig. 1 is to partial sectional view.
Embodiment
The embodiment one of the utility model sealed pipe joint: as shown in Figure 1 and Figure 2, comprise the first body 2, the upper end open place of the first body 2 is installed with upper flange 1, lower ending opening is installed with capping 5, between capping 5 and outer the turning edge of the first body lower end, is pressed with seal ring; In described capping 5, be equipped with along the upper end of the second body 6, the second bodys 6 of the first body 2 axially directed movements stretch in the first body 2, lower end is installed with lower flange 10.Capping 5 has the capping hole of passing for the second body 6, and capping hole is the slotted hole radially extending along the first body 2, and the external diameter of the width in capping hole and the second body 6 is adaptive, can realize like this second body 6 and along the first body 2 radially-directeds, move in slotted hole.On the second body 6, be arranged with the fixed cover 3 with the second body 6 axial sliding fits, fixed cover 3 is positioned at the first body 2, simultaneously in order to guarantee the sealing effect between fixed cover 3 and the second body 6, the endoporus of fixed cover 3 is up big and down small shoulder hole, in the fixed cover part of shoulder hole macropore section correspondence and the gap between the second body, be provided with axial seal structure 8, axial seal structure 8 adopts stuffing box packing; In the macropore section of shoulder hole, be also fitted with from top to bottom Gland 7 simultaneously, Gland 7 by its upper end turn edge with the turning edge of fixed cover 3 upper ends between the bolt that is connected realize and being connected, Gland 7 is movably set on the second body 6 and stuffing box packing is fitted on the step surface of shoulder hole.The lower end of fixed cover 3 has the sealing of turning up and turns edge 31, on the upper-end surface of capping 5, be installed with sealing 31 axial limit structures that carry out axial limiting that turn edge, axial limit structure is the L shaped limiting board 9 that is arranged symmetrically in described capping hole length direction both sides, the horizontal segment of two limiting boards 9 is all towards the axis of the first body 2, and coordinate with turn edge 31 upper-end surface limit block of sealing, like this under the effect of axial limit structure, sealing turns edge 31 between capping 5 and the horizontal segment of limiting board 9, realized the axial limiting to fixed cover 3, guaranteed that fixed cover 3 moves axially stablizing in process at the second body 6, sealing turns edge and 31 in fixed cover 3 moves radially process, coordinates with capping 5 sliding frictions, seals 31 the size of turning edge and can, by the shutoff of capping hole, guarantee the sealing effect between capping 5 and the second body 6 all the time in fixed cover 3 moves radially process.
In the present embodiment, for reduce sealing turn edge 31 and capping 5 between friction factor, the annular protrusion turning on the inner peripheral surface of capping 5 has, on the upper-end surface of annular protrusion, offer annular groove, in annular groove, be embedded with red copper bar 4, described sealing turns over 31 along directly contacting with red copper bar 4, when reducing friction factor, has also improved sealing effect.
When above-described embodiment is specifically applied, whole pipe joint is in tandem between pipeline, and by upper flange 1, realize and being connected with corresponding piping flange with lower flange 10 respectively, when pipeline generation axial action, drive the corresponding axial motion of the second body 6, the sealing effect when stuffing box packing in fixed cover 3 has guaranteed axial motion; When pipeline generation radial motion, pipeline drives the second body 6 to move along the length direction of capping endoporus, stuffing box packing in fixed cover 3 and sealing 31 sealing effects while having guaranteed radial motion that turn edge, frictional force when red copper bar 4 has reduced to move radially simultaneously.
The embodiment two of the utility model sealed pipe joint: the present embodiment and embodiment's one difference is, fixed cover is positioned at outside the first body, and corresponding, its endoporus is up-small and down-big shoulder hole, sealing turns edge and is arranged on the upper end of fixed cover, and axial limit structure is installed on the lower end surface of capping; Being positioned in or beyond the first body of fixed cover, is the layout needs according to the first pipe structure, is arranged on outside the first body, can reduce accordingly the size of the first body.
In other embodiments, axial seal structure also can adopt the form of seal ring.
In other embodiments, also red copper bar can be set, sealing turns edge directly and annular protrusion is slidably matched; Annular protrusion can certainly be set, and the O-ring seal of lower end surface setting-in turning edge in sealing also can realize slipper seal.
Claims (1)
1. the pipe joint of can axial stretching, moving radially, it is characterized in that: comprise with the first body of upper flange and with the second body of lower flange, the lower end of the first body has capping, in capping, offer the capping hole of passing from lower to upper for the upper end of the second body, capping hole is slotted hole that radially extend along the first body, that coordinate with the second body guiding movement; On described the second body, be arranged with the fixed cover with the second body axial sliding fit, between fixed cover and the second body, be provided with axial seal structure, and one end towards capping of fixed cover has at fixed cover and moves radially and in process, coordinate with capping sliding friction and turn edge for the sealing in shutoff capping hole, is installed with the axially movable axial limit structure of restriction fixed cover in described capping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629034.8U CN203823290U (en) | 2013-10-12 | 2013-10-12 | Pipe joint with axial retraction and radial movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629034.8U CN203823290U (en) | 2013-10-12 | 2013-10-12 | Pipe joint with axial retraction and radial movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823290U true CN203823290U (en) | 2014-09-10 |
Family
ID=51478791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320629034.8U Expired - Fee Related CN203823290U (en) | 2013-10-12 | 2013-10-12 | Pipe joint with axial retraction and radial movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090510A (en) * | 2016-08-04 | 2016-11-09 | 河北钢铁股份有限公司邯郸分公司 | A kind of sinter machine bellows branch line inflexibility compensator |
| CN106838523A (en) * | 2016-11-22 | 2017-06-13 | 上海电力股份有限公司 | A kind of high-temperature hot-air conveying pipeline expansion joint |
-
2013
- 2013-10-12 CN CN201320629034.8U patent/CN203823290U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090510A (en) * | 2016-08-04 | 2016-11-09 | 河北钢铁股份有限公司邯郸分公司 | A kind of sinter machine bellows branch line inflexibility compensator |
| CN106838523A (en) * | 2016-11-22 | 2017-06-13 | 上海电力股份有限公司 | A kind of high-temperature hot-air conveying pipeline expansion 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20161012 |