CN205639968U - Rotary joint with double seal structure - Google Patents
Rotary joint with double seal structure Download PDFInfo
- Publication number
- CN205639968U CN205639968U CN201520884397.5U CN201520884397U CN205639968U CN 205639968 U CN205639968 U CN 205639968U CN 201520884397 U CN201520884397 U CN 201520884397U CN 205639968 U CN205639968 U CN 205639968U
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- ring
- outer tube
- sealing
- end cap
- housing
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Abstract
The utility model relates to a rotary joint, specific rotary joint with double seal structure that says so belongs to rotary joint technical field. It includes casing, outer tube and inner tube, during the one end of outer tube stretches into the cylinder ring, and suit sphere ring on the other end. The end cover inboard is equipped with sealing spherical surface, the sealing spherical surface and the sphere ring sealing contact of end cover. The end cover inboard is equipped with the seal groove, is equipped with general match sealing washer in the seal groove, and general match sealing washer suit is on the outer tube for between end cover and the outer tube, general match sealing washer rear end compresses tightly through the guide ring. The utility model discloses be equipped with the double seal structure that the general match sealing washer of sphere ring sum constitutes respectively in the front and back end of end cover, improved the sealing performance of product, avoid running the emergence of emitting dripping phenomenon, have difference in temperature structure, reduce the production of cylindrical spring heat altered shape and brittle failure phenomenon, guaranteed sealing performance and lengthened life.
Description
Technical field
This utility model relates to a kind of swivel joint, a kind of swivel joint with double sealing structure, belongs to swivel joint technical field.
Background technology
Swivel joint is to be input to rotate or reciprocating equipment from static pipeline by fluid media (medium), then the connection sealing device discharged from swivel joint, is called for short " swivel joint ".Loop swivel joint can select mode of connection according to operative scenario.Transmission medium entrance can enter according to working condition unrestricted choice side or rear end.Sealing surface and sealing ring are made by special material, wear-resistant, life-span length, corrosion-resistant, do not leak.
, there is the shortcomings such as coarse, simple and crude, the outer tube rotational stability difference of profile, cause abrasion uneven in the swivel joint that prior art produces；Meanwhile, the sealing structure of interiors of products is unreliable, easily produces evaporating, emitting, dripping or leaking of liquid or gas phenomenon.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus provides a kind of swivel joint with double sealing structure, is provided with double sealing structure in end cap both sides, improves the sealing property of product, structure.
The technical scheme provided according to this utility model, swivel joint with double sealing structure includes housing, outer tube and inner tube, it is characterized in that: in housing, bottom is provided with cylindrical spring and cylinder ring, the end face of cylindrical spring embeds in the facing groove of cylindrical spring, outer tube side is provided with medium entrance, medium entrance sidewall and cylinder ring sliding contact, one end of outer tube is stretched in cylinder ring, and the other end is set with Spherical Ring；Being provided with inner tube in outer tube, be provided with medium channel between outer tube and inner tube, inner tube one end is connected with media outlet, and the other end connects user's slewing；Connecting end cap by hex bolts on the end face of housing, be provided with sealing sphere inside end cap, the sealing sphere of end cap is in sealing contact with Spherical Ring；Being set with guide ring on outer tube, guide ring is by spline plate press-in end cap, and spline plate is fixed by screws on end cap end face；Being provided with seal groove inside described end cap, be provided with general match sealing ring in seal groove, general match ring set is on outer tube, and between end cover and outer tube, general match sealing ring rear end is compressed by guide ring.
Further, being provided with draw-in groove between cylinder ring and inner walls, be provided with spline sliding pin in draw-in groove, spline sliding pin along draw-in groove slide anteroposterior, and can stop and relatively rotate between cylinder ring and housing.
Further, between end cap and hex bolts, it is provided with elastic washer, between end cap and the end face of housing, is provided with sealing gasket.
Further, cylinder ring and guide ring constitute the dual-gripper oilless bearing structure of outer tube.
Compared with the prior art this utility model has the advantage that
This utility model simple in construction, compact, reasonable, easy to process, cost is relatively low；Before and after end cap, end is respectively equipped with Spherical Ring and the double sealing structure of general match sealing ring composition, improves the sealing property of product, it is to avoid the generation of evaporating, emitting, dripping or leaking of liquid or gas phenomenon；There is temperature difference structure, reduce cylindrical spring thermal deformation and the generation of brittle failure phenomenon, it is ensured that sealing property also extends service life.
Accompanying drawing explanation
Fig. 1 is this utility model front view.
Description of reference numerals: 1-housing, 2-cylindrical spring, 3-cylinder ring, 4-spline sliding pin, 5-outer tube, 6-Spherical Ring, 7-sealing gasket, 8-end cap, 9-elastic washer, 10-hex bolts, 11-guide ring, 12-spline plate, 13-screw, 14-general match sealing ring, 15-inner tube.
Detailed description of the invention
The embodiment combined in accompanying drawing is further described by this utility model below:
As it is shown in figure 1, this utility model mainly includes housing 1, outer tube 5 and inner tube 15, in housing 1, bottom is provided with cylindrical spring 2 and cylinder ring 3, and the end face of cylindrical spring 2 embeds in the facing groove of cylindrical spring 2.Outer tube 5 side is provided with medium entrance, medium entrance sidewall and cylinder ring 3 sliding contact.One end of outer tube 5 is stretched in cylinder ring 3, and the other end is set with Spherical Ring 6.
The medium entrance of outer tube 5 is isolated by cylinder ring 3 with cylindrical spring 2 so that cylindrical spring 2 is in low-temperature space, reduces cylindrical spring 2 thermal deformation and the generation of brittle failure phenomenon, it is ensured that sealing property also extends service life.
Being provided with draw-in groove between described cylinder ring 3 and housing 1 inwall, be provided with spline sliding pin 4 in draw-in groove, spline sliding pin 4 along draw-in groove slide anteroposterior, and can stop and relatively rotate between cylinder ring 3 and housing 1.
Being provided with inner tube 15 in outer tube 5, be provided with medium channel between outer tube 5 and inner tube 15, inner tube 15 one end is connected with media outlet, and the other end connects user's slewing.
Connecting end cap 8 by hex bolts 10 on the end face of housing 1, be provided with sealing sphere inside end cap 8, the sealing sphere of end cap 8 is in sealing contact with Spherical Ring 6, thus forms the first seal structures of product, it is to avoid the evaporating, emitting, dripping or leaking of liquid or gas of product.It is provided with elastic washer 9 between described end cap 8 and hex bolts 10, between the end face of end cap 8 and housing 1, is provided with sealing gasket 7.
Being set with guide ring 11 on outer tube 5, guide ring 11 is pressed in end cap 8 by spline plate 12, and spline plate 12 is fixed on end cap 8 end face by screw 13.
Being provided with seal groove inside described end cap 8, be provided with general match sealing ring 14 in seal groove, general match sealing ring 14 is sleeved on outer tube 5, and between end cover 8 and outer tube 5, general match sealing ring 14 rear end is compressed by guide ring 11.General match sealing ring 14 constitutes the second seal structures of product, it is to avoid the evaporating, emitting, dripping or leaking of liquid or gas of product.
Described cylinder ring 3 and guide ring 11 constitute the dual-gripper oilless bearing structure of outer tube 5 so that outer tube 5 can steadily operate.
Operation principle of the present utility model is: operationally, medium enters the medium entrance of outer tube by the import on housing 1, then enter the medium channel between outer tube and inner tube by medium entrance to enter on user's slewing that inner tube connects, thus play cooling effect.Medium after cooling is flowed out by inner tube.Before and after end cap, end is respectively equipped with Spherical Ring and the double sealing structure of general match sealing ring composition, improves the sealing property of product, it is to avoid the generation of evaporating, emitting, dripping or leaking of liquid or gas phenomenon.
This utility model simple in construction, compact, reasonable, that end is respectively equipped with Spherical Ring and general match sealing ring is constituted before and after end cap double sealing structure, improves the sealing property of product, it is to avoid the generation of evaporating, emitting, dripping or leaking of liquid or gas phenomenon；There is temperature difference structure, reduce cylindrical spring thermal deformation and the generation of brittle failure phenomenon, it is ensured that sealing property also extends service life.
Claims (4)
1. the swivel joint with double sealing structure, including housing (1), outer tube (5) and inner tube (15), it is characterized in that: housing (1) interior bottom is provided with cylindrical spring (2) and cylinder ring (3), the end face of cylindrical spring (2) embeds in the facing groove of cylindrical spring (2), outer tube (5) side is provided with medium entrance, medium entrance sidewall and cylinder ring (3) sliding contact, one end of outer tube (5) is stretched in cylinder ring (3), and the other end is set with Spherical Ring (6)；Being provided with inner tube (15) in outer tube (5), be provided with medium channel between outer tube (5) and inner tube (15), inner tube (15) one end is connected with media outlet, and the other end connects user's slewing；Connecting end cap (8) by hex bolts (10) on the end face of housing (1), end cap (8) inner side is provided with sealing sphere, and the sealing sphere of end cap (8) is in sealing contact with Spherical Ring (6)；Being set with guide ring (11) on outer tube (5), guide ring (11) is by spline plate (12) press-in end cap (8), and spline plate (12) is fixed on end cap (8) end face by screw (13)；Described end cap (8) inner side is provided with seal groove, general match sealing ring (14) it is provided with in seal groove, general match sealing ring (14) is sleeved on outer tube (5), and between end cover (8) and outer tube (5), general match sealing ring (14) rear end is compressed by guide ring (11).
2. as claimed in claim 1 with the swivel joint of double sealing structure, it is characterized in that: between described cylinder ring (3) and housing (1) inwall, be provided with draw-in groove, draw-in groove is provided with spline sliding pin (4), spline sliding pin (4) along draw-in groove slide anteroposterior, and can stop and relatively rotate between cylinder ring (3) and housing (1).
3., as claimed in claim 1 with the swivel joint of double sealing structure, it is characterized in that: be provided with elastic washer (9) between described end cap (8) and hex bolts (10), between the end face of end cap (8) and housing (1), be provided with sealing gasket (7).
4., as claimed in claim 1 with the swivel joint of double sealing structure, it is characterized in that: described cylinder ring (3) and guide ring (11) constitute the dual-gripper oilless bearing structure of outer tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884397.5U CN205639968U (en) | 2015-11-06 | 2015-11-06 | Rotary joint with double seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884397.5U CN205639968U (en) | 2015-11-06 | 2015-11-06 | Rotary joint with double seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639968U true CN205639968U (en) | 2016-10-12 |
Family
ID=57079107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884397.5U Active CN205639968U (en) | 2015-11-06 | 2015-11-06 | Rotary joint with double seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240635A (en) * | 2015-11-06 | 2016-01-13 | 江苏腾旋科技股份有限公司 | Rotary joint with double sealing structures |
| CN115126954A (en) * | 2022-06-28 | 2022-09-30 | 福建省闽旋科技股份有限公司 | Novel rotary sealing device for fixing inner pipe |
-
2015
- 2015-11-06 CN CN201520884397.5U patent/CN205639968U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240635A (en) * | 2015-11-06 | 2016-01-13 | 江苏腾旋科技股份有限公司 | Rotary joint with double sealing structures |
| CN115126954A (en) * | 2022-06-28 | 2022-09-30 | 福建省闽旋科技股份有限公司 | Novel rotary sealing device for fixing inner pipe |
| CN115126954B (en) * | 2022-06-28 | 2024-02-02 | 福建省闽旋科技股份有限公司 | Rotary sealing device for fixing inner pipe |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |