CN203770895U - Novel sealing structure of rotary joint - Google Patents
Novel sealing structure of rotary joint Download PDFInfo
- Publication number
- CN203770895U CN203770895U CN201420026254.6U CN201420026254U CN203770895U CN 203770895 U CN203770895 U CN 203770895U CN 201420026254 U CN201420026254 U CN 201420026254U CN 203770895 U CN203770895 U CN 203770895U
- Authority
- CN
- China
- Prior art keywords
- graphite bearing
- spherical
- bearing
- sealing structure
- central axis
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 41
- 239000010439 graphite Substances 0.000 claims abstract description 41
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a novel sealing structure of a rotary joint. The novel sealing structure comprises a shell and a rotary center shaft, wherein the rotary center shaft is inserted into the shell; a sealing ring sleeves the exterior of the front part of the rotary center shaft; the middle and the tail end of the rotary center shaft are supported on a front graphite bearing and a back graphite bearing respectively; the front and back surfaces of the sealing ring are spherical; a spherical piece A is fixed at the back of a surface cover of the shell; a spherical piece B of which the back surface is abutted against the front graphite bearing is fixed in the middle of the rotary center shaft; the spherical surfaces of the spherical piece A and the spherical piece B are abutted against the front and back spherical surfaces of the sealing ring respectively; a spring is arranged between the front graphite bearing and the back graphite bearing; two opposite limiting sliding grooves are formed in the inner wall of the shell; short limiting columns are oppositely arranged on the circumferences of the front graphite bearing and the back graphite bearing; each short limiting column is inserted into the corresponding limiting sliding groove. According to the novel sealing structure, the sealing effect can be ensured, and a product is more durable in use.
Description
Technical field
The utility model relates to pipe fitting and connects, particularly a kind of novel sealing structure of swivel joint.
Background technique
Swivel joint is for fluid is input to the connection set of rotary gadget from static oil pipe, the rotation central axis of flowing through for fluid on existing swivel joint, the graphite bearing that supports it is radially not exclusively fixing, cause sometimes graphite bearing and seal ring, all with rotation central axis, rotate simultaneously, sealing effect is damaged, and after graphite bearing and seal ring are worn, can not get compensation and repair, this also can cause the serious variation of sealing effect, affects the working life of swivel joint.
Model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of novel sealing structure of swivel joint is provided, and guarantees sealing effect, more durable in use.
The technical solution of the utility model is: the novel sealing structure that a kind of swivel joint is provided, it comprises housing and the rotation central axis of pegging graft wherein, the anterior overcoat of rotation central axis has seal ring, the middle part of rotation central axis and tail end, be bearing in respectively on front graphite bearing and rear graphite bearing, the front-back of seal ring is spherical, the cover back of housing is fixed with A spherical part, the middle part of rotation central axis, be fixed with the B spherical part that the back side and front graphite bearing are tight against mutually, the spherical of A spherical part and B spherical part, is tight against respectively the front and back spherical of seal ring;
Between described front graphite bearing and rear graphite bearing, be provided with spring;
The inwall of described housing, is provided with two relative limit sliding chutes, on the circumference of front graphite bearing and rear graphite bearing, is all relatively provided with spacing short column, and each spacing short column is inserted in respectively in corresponding limit sliding chutes.
The novel sealing structure of above-mentioned swivel joint, correspondence setting due to spacing short column and limit sliding chutes, two graphite bearings are radially completely fixed, the wearing and tearing of front graphite bearing and two spherical parts, can under spring action, automatically be compensated and repair, thereby guaranteed good sealing effect, product is more durable in use.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, structure of the present utility model and advantage are further described.
Fig. 1 is the split figure of described model utility;
Fig. 2 is the longitudinal sectional view of described model utility;
Fig. 3 is the phase diagram of cutting open of housing;
Fig. 4 is the plan view of housing.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of novel sealing structure of swivel joint is provided, it comprises housing 1 and the rotation central axis 2 of pegging graft wherein, the anterior overcoat of rotation central axis 2 has seal ring 3, the middle part of rotation central axis 2 and tail end, be bearing in respectively on front graphite bearing 4 and rear graphite bearing 5, the front-back of seal ring 3 is spherical, cover 6 backs of housing 1 are fixed with A spherical part 7, the middle part of rotation central axis 2, be fixed with the B spherical part 8 that the back side and front graphite bearing 4 are tight against mutually, the spherical of A spherical part 7 and B spherical part, is tight against respectively the front and back spherical of seal ring 3.
Between described front graphite bearing 4 and rear graphite bearing 5, be provided with spring 9.The inwall of described housing 1, is provided with two relative limit sliding chutes 10, on the circumference of front graphite bearing 4 and rear graphite bearing 5, is all relatively provided with spacing short column 11, and each spacing short column 11 is inserted in respectively in corresponding limit sliding chutes 10.
During work, rotation central axis 2 rotates, B spherical part 8 rotates thereupon together, the spherical of B spherical part 8 and the back side, the difference rear spherical of friction sealed ring 3 and the front-end face of front graphite bearing 4, long-term work along with swivel joint, the rear spherical of seal ring 3 and the front-end face of front graphite bearing 4, capital is subject to wearing and tearing to a certain extent, spring 9 can promote forward front graphite bearing 4 and B spherical part 8 automatically, make front graphite bearing 4 be tight against all the time the back side of B spherical part 8, the spherical of B spherical part 8 is tight against the rear spherical of seal ring 3 all the time, make the wearing and tearing of the rear spherical of seal ring 3 and the front-end face of front graphite bearing 4, can under spring 9 effects, automatically be compensated and repair, guarantee sealing effect.When front graphite bearing 4 is pushed forward, each spacing short column 11 slides along corresponding limit sliding chutes 10.
Referring to Fig. 1, Fig. 3, Fig. 4, correspondence setting due to spacing short column 11 and limit sliding chutes 10, front graphite bearing 4 and rear graphite bearing 5 are radially completely fixed, can not rotate, can avoid the two and seal ring 3 all with rotation central axis 2, to rotate simultaneously, thereby further guarantee good sealing effect.
Above-described embodiment is preferred embodiment of the present utility model, and all and the similar structure of the utility model and the equivalence of doing change, and all should belong to protection category of the present utility model.
Claims (1)
1. the novel sealing structure of a swivel joint, it comprises housing and the rotation central axis of pegging graft wherein, the anterior overcoat of rotation central axis has seal ring, the middle part of rotation central axis and tail end, be bearing in respectively on front graphite bearing and rear graphite bearing, it is characterized in that: the front-back of seal ring is spherical, the cover back of housing is fixed with A spherical part, the middle part of rotation central axis, be fixed with the B spherical part that the back side and front graphite bearing are tight against mutually, the spherical of A spherical part and B spherical part, is tight against respectively the front and back spherical of seal ring;
Between described front graphite bearing and rear graphite bearing, be provided with spring;
The inwall of described housing, is provided with two relative limit sliding chutes, on the circumference of front graphite bearing and rear graphite bearing, is all relatively provided with spacing short column, and each spacing short column is inserted in respectively in corresponding limit sliding chutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026254.6U CN203770895U (en) | 2014-01-15 | 2014-01-15 | Novel sealing structure of rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026254.6U CN203770895U (en) | 2014-01-15 | 2014-01-15 | Novel sealing structure of rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770895U true CN203770895U (en) | 2014-08-13 |
Family
ID=51288086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026254.6U Expired - Lifetime CN203770895U (en) | 2014-01-15 | 2014-01-15 | Novel sealing structure of rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140096A (en) * | 2018-09-20 | 2019-01-04 | 杭州优能特旋转接头制造厂 | A kind of commutation type rotary joint structure |
-
2014
- 2014-01-15 CN CN201420026254.6U patent/CN203770895U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140096A (en) * | 2018-09-20 | 2019-01-04 | 杭州优能特旋转接头制造厂 | A kind of commutation type rotary joint structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160630 Address after: The town of Nanhai District, Guangdong city of Foshan province Luo village 528200 East Road No. 10 South East Lianxing 101 shop Patentee after: FOSHAN CITY NANHAI DISTRICT HONGCHANG JUFA ELECTROMECHANICAL VALVE CO.,LTD. Address before: 528200 Guangdong Province, Foshan City Nanhai Luocun Lianxing East East Road on the south side of the 10 shop 101 Patentee before: Cui Hongchang |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |