CN201787232U - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN201787232U CN201787232U CN2010202658395U CN201020265839U CN201787232U CN 201787232 U CN201787232 U CN 201787232U CN 2010202658395 U CN2010202658395 U CN 2010202658395U CN 201020265839 U CN201020265839 U CN 201020265839U CN 201787232 U CN201787232 U CN 201787232U
- Authority
- CN
- China
- Prior art keywords
- housing
- sealing
- swivel coupling
- squeeze cap
- revolving drum
- 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 discloses a rotary joint which comprises a housing and a rotary cylinder arranged in the housing, wherein pressure seal covers are respectively arranged on the outer side of the upper end and that of the lower end of the rotary cylinder, the pressure seal covers are connected with the housing, and the rotary joint is characterized in that bearings are respectively arranged on both inner sides of the pressure seal covers between the housing and the rotary cylinder, an outer positioning ring is arranged between the two bearings, the pressure seal cover at the lower end is connected with the housing through a bolt, a first sealing part is arranged between the housing and the pressure seal cover, and a second sealing part is arranged between the pressure seal cover at the lower end and the rotary cylinder. The rotary joint has high sealing performance and long service life, and is convenient for operation and maintenance and low in cost.
Description
Technical field
The utility model relates to a kind of swivel coupling, belongs to the mechanical fitting field.
Background technique
At present, the seal arrangement of old-fashioned swivel coupling inside is simple, has only one reinforced seal with O type circle sealing, and sealability is lower, and the material of Sealing is nitrile rubber, and aging easily, working life is short.The rotation of old-fashioned swivel coupling is undertaken by steel ball, because the influence of external force of gravity can produce very big friction between steel ball and the groove, can produce very big resistance during rotation, very difficult when causing the pipe fitting rotation that is connected, the while has also increased operator's labor intensity.In addition, old-fashioned swivel coupling and steel pipe etc. are welded together, quite bother when causing changing Sealing, need during replacing steel pipe is cut off, finish changing Sealing after, with swivel coupling and steel pipe welding, increased the difficulty and the expense of keeping in repair again.
The model utility content
The purpose of this utility model provides a kind of sealability powerful for overcoming the deficiencies in the prior art, long service life and the swivel coupling of being convenient to keep in repair.
For solving the problems of the technologies described above, the technological scheme that the utility model provides is: a kind of swivel coupling, comprise housing and be arranged at the interior revolving drum of housing, the outside, two ends up and down at revolving drum is respectively arranged with squeeze cap, described squeeze cap is connected with housing, it is characterized in that: squeeze cap two inboards are provided with a bearing respectively between housing and revolving drum, between two bearings, be provided with outer positioning ring, the lower end squeeze cap is connected by bolt with housing, be provided with first Sealing between housing and the squeeze cap, lower end squeeze cap and revolving drum are provided with second Sealing.
Aforesaid swivel coupling is characterized in that: upper end squeeze cap and housing are fixedly connected by welding, and are provided with the 3rd Sealing between upper end squeeze cap and the revolving drum.
Aforesaid swivel coupling is characterized in that: described first Sealing is O RunddichtringO and adjacent backbone sealing ring together.
Aforesaid swivel coupling is characterized in that: described second Sealing is the O RunddichtringO.
Aforesaid swivel coupling is characterized in that: described the 3rd Sealing is the twice backbone sealing ring.
Aforesaid swivel coupling is characterized in that: described backbone sealing ring and O RunddichtringO material are fluorine rubber.
Aforesaid swivel coupling is characterized in that: described squeeze cap is provided with flange.
Aforesaid swivel coupling is characterized in that: described revolving drum and flange head are joined the tapped hole that is drilled with two M6 dark 20 symmetrically.
Compared with prior art, the beneficial effects of the utility model are: 1, because the utility model has adopted three road reinforced seals and two road O type circle sealings, compare old-fashioned swivel coupling and improved sealability greatly; 2, because the material of Sealing has adopted fluorine rubber, prolonged the aging period of Sealing greatly, the time in working life is compared old-fashioned swivel coupling has increased 1-2 doubly; 3, rotating part has adopted two bearings to rotate, and can not be subjected to the influence of external force of gravity, and frictional force is little, and rotation is got up very flexible, has reduced operator's labor intensity; What 4, the utility model adopted is absolute version, be connected with steel pipe or elbow by flange, rather than it is welded together as old-fashioned swivel coupling and steel pipe, only need when therefore changing Sealing the connecting bolt of flange is laid down, take down swivel coupling, just can change Sealing, after finishing changing, only need flange connected with bolt and get final product, easy to operate and saved maintenance expenses.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing:
1. flange head 2. squeeze caps 3. housings 4. revolving drums
5. backbone sealing ring 6. bearings 7. outer positioning ring 8.O RunddichtringOs
9.O RunddichtringO 10. backbone sealing rings 11. bolts 12. screws
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
With reference to Fig. 1, the described swivel coupling of the utility model generally is used to turn round the connection of pipeline, need the connection of swivel gear as oil pipe connecting part and other, comprise housing 3 and the revolving drum 4 that is arranged in the housing 3, the outside, two ends up and down at revolving drum 4 is respectively arranged with squeeze cap 2, described squeeze cap 2 is connected with housing 3, it is characterized in that: 2 liang of inboards of squeeze cap are provided with a bearing 6 respectively between housing 3 and revolving drum 4, between two bearings 6, be provided with outer positioning ring 7, lower end squeeze cap 2 is connected by bolt 11 with housing 3, be provided with first Sealing between housing 3 and the squeeze cap 2, lower end squeeze cap 2 is provided with second Sealing with revolving drum 4.Upper end squeeze cap and housing 3 are fixedly connected by welding, and are provided with the 3rd Sealing between upper end squeeze cap and the revolving drum 4.First Sealing is O RunddichtringO 8 and adjacent backbone sealing ring 10 together.Second Sealing is an O RunddichtringO 9.The 3rd Sealing is a twice backbone sealing ring 5.Squeeze cap is provided with flange 1.Revolving drum 4 and flange head 1 are joined the tapped hole that is drilled with two M6 dark 20 symmetrically.
In the present embodiment, the material of Sealing is a fluorine rubber, put it into pressure testing table after assembling, water pressure testing, test pressure are 0.6MPa, voltage stabilizing 15 minutes, if it is qualified that no leakage phenomenon is, fitting surface all should be smeared consistent lubricant, with the sealed at both ends packing of swivel coupling, forbids sandstone to enter in the sealing surface after the assembling.Swivel coupling sealability height of the present utility model, long service life is operated light, easy to maintenance and expense is cheap.
The utility model is illustrated according to embodiment, should be appreciated that the foregoing description does not limit the utility model in any form, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within the protection domain of the present utility model.
Claims (8)
1. swivel coupling, comprise housing and be arranged at the interior revolving drum of housing, the outside, two ends up and down at revolving drum is respectively arranged with squeeze cap, described squeeze cap is connected with housing, it is characterized in that: squeeze cap two inboards are provided with a bearing respectively between housing and revolving drum, are provided with outer positioning ring between two bearings, and the lower end squeeze cap is connected by bolt with housing, be provided with first Sealing between housing and the squeeze cap, lower end squeeze cap and revolving drum are provided with second Sealing.
2. swivel coupling according to claim 1 is characterized in that: described upper end squeeze cap and housing are fixedly connected by welding, and are provided with the 3rd Sealing between upper end squeeze cap and the revolving drum.
3. swivel coupling according to claim 1 is characterized in that: described first Sealing is O RunddichtringO and adjacent backbone sealing ring together.
4. swivel coupling according to claim 1 is characterized in that: described second Sealing is the O RunddichtringO.
5. swivel coupling according to claim 1 is characterized in that: described the 3rd Sealing is the twice backbone sealing ring.
6. swivel coupling according to claim 1 is characterized in that: described backbone sealing ring and O RunddichtringO material are fluorine rubber.
7. swivel coupling according to claim 1 is characterized in that: described squeeze cap is provided with flange.
8. swivel coupling according to claim 1 is characterized in that: described revolving drum and flange head are joined the tapped hole that is drilled with two M6 dark 20 symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202658395U CN201787232U (en) | 2010-07-21 | 2010-07-21 | Rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202658395U CN201787232U (en) | 2010-07-21 | 2010-07-21 | Rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787232U true CN201787232U (en) | 2011-04-06 |
Family
ID=43819195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202658395U Expired - Fee Related CN201787232U (en) | 2010-07-21 | 2010-07-21 | Rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833185A (en) * | 2021-02-05 | 2021-05-25 | 江苏徐工工程机械研究院有限公司 | Tensile revolving body |
-
2010
- 2010-07-21 CN CN2010202658395U patent/CN201787232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833185A (en) * | 2021-02-05 | 2021-05-25 | 江苏徐工工程机械研究院有限公司 | Tensile revolving body |
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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: 20110406 Termination date: 20140721 |
|
| EXPY | Termination of patent right or utility model |