CN2731187Y - Hydraulic seal device - Google Patents
Hydraulic seal device Download PDFInfo
- Publication number
- CN2731187Y CN2731187Y CN 200420082400 CN200420082400U CN2731187Y CN 2731187 Y CN2731187 Y CN 2731187Y CN 200420082400 CN200420082400 CN 200420082400 CN 200420082400 U CN200420082400 U CN 200420082400U CN 2731187 Y CN2731187 Y CN 2731187Y
- Authority
- CN
- China
- Prior art keywords
- ring
- seal ring
- sealing ring
- seal
- cylinder body
- 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 claims abstract description 21
- 239000002184 metal Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a hydraulic seal device which comprises a piston rod and a cylinder body. The utility model is characterized in that the outer circle surface of the sealing ring which is tightly sheathed on the piston rod is tightly hooped with an elastic sealing ring. The side surfaces of the two sealing rings are conically matched, the outer circle surface is tightly matched with the cylinder body, the sealing ring can be adjusted via an adjusting nut to hoop the other sealing ring when the sealing ring is worn, and meanwhile, the last sealing ring can create decreased inner diameter deformation by the extrusion, so the sealing effect can be recovered, and therefore, the process can be reused for many times. Therefore, the service life of the last sealing ring can be increased, and the inconvenience brought by changing sealing ring can be reduced.
Description
Technical field:
The utility model relates to seal arrangement, particularly hydraulic seal device.
Background technique:
Existing hydraulic seal device, at piston rod overcoat upper sealing ring, though can solve sealing problem preferably, after permanent the use, seal ring weares and teares to some extent and the seepage phenomenon will occur, just needs to change seal ring.Not only seal ring is short working life, and very inconvenience of seal arrangement dismounting.
Summary of the invention:
It is a kind of adjustable that the utility model provides, and seal wears can be used hydraulic seal device repeatedly.
The utility model comprises piston rod, cylinder body, and the flexible seal ring of seal ring periphery lock ring on piston rod is characterized in that being locked; Two seal ring side cone match, periphery and cylinder body closely cooperate.The seal ring left side is glued with guide ring, metal guide ring, adjusting nut, adjusting nut excircle and cylinder body screw-thread fit successively.The seal ring section is stepped shaft, between big round platform and the little round platform conical surface is arranged, and the elastic sealing ring lock ring is on the little round platform of seal ring, and left conical surface cooperates with conical surface on the seal ring on the elastic sealing ring, and right conical surface edge withstands on the casing wall boss.
The utility model elastic sealing ring lock ring is on the seal ring cylindrical and cone match, after seal ring decreases, can regulate another seal ring of seal ring banding by adjusting nut, back one seal ring is squeezed and produces the deformation that internal diameter dwindles simultaneously, recover sealing effect, and this process can repeat repeatedly.Thereby improved the working life of a back seal ring, reduced because of changing the inconvenience that seal ring brings.
Description of drawings:
Fig. 1 is the utility model one embodiment's a sectional view.
Description of reference numerals: piston rod 1, adjusting nut 2, guide ring 3, guide ring 4, seal ring 5, seal ring 6, cylinder body 7, Seal cage 8, casing wall boss 9, the right conical surface 10 of seal ring, seal ring left side conical surface 11, seal ring conical surface 12, through hole 13, taper hole 14
Embodiment:
Piston rod 1 places Seal cage 8, and the centre has axial hole 13 and Seal cage 8 UNICOMs; Adjusting nut 2, guide ring 3, guide ring 4, seal ring 5, seal ring 6 are enclosed within on the piston rod 1 from left to right successively.Adjusting nut 2 outer peripheral surfaces are shaped on screw thread, and with cylinder body 7 screw-thread fit, have regularly arranged taper hole 14 on the left surface, the right side is frustoconic shape, little round table surface withstands on the guide ring 3.Seal ring 5 sections are stepped shaft, between big round platform and the little round platform conical surface 12 is arranged, seal ring 6 lock rings are sealing on the 5 little round platforms, 12 closely connected cooperations of conical surface of its conical surface 11 and seal ring 5, right conical surface 11 edges withstand on the casing wall boss 9, and two seal ring excircles and cylinder body 7 closely cooperate.
Wherein guide ring 3 is a metallic material, and guide ring 4, seal ring 5 are nylon material, and seal ring 6 is an elastic material.After 5 wearing and tearing of sealing in the using process, by taper hole 14 adjusting nut 2 is moved inward, seal ring 5 is squeezed and produces deformation, because its outer circumferential face is subjected to the qualification of cylinder body 7, its inwardly deformation and dwindle internal diameter, simultaneously seal ring 6 back that is squeezed applies tightening force to seal ring 5, thereby makes seal ring 5 recover to contact with the good sealing of piston rod 1.
Claims (3)
1, a kind of hydraulic seal device comprises piston rod (1), cylinder body (7), and the flexible seal ring of seal ring (5) periphery lock ring (6) on piston rod (1) is characterized in that being locked; Two seal ring side cone match, periphery and cylinder body (7) closely cooperate.
2, hydraulic seal device according to claim 1 is characterized in that seal ring (5) left side is glued with guide ring (4), metal guide ring (3), adjusting nut (2), adjusting nut (2) excircle and cylinder body (7) screw-thread fit successively.
3, hydraulic seal device according to claim 2, it is characterized in that seal ring (5) section is stepped shaft, between big round platform and the little round platform conical surface (12) is arranged, elastic sealing ring (6) lock ring is on the little round platform of seal ring (5), the last left conical surface (11) of elastic sealing ring (6) is gone up conical surface (12) with seal ring (5) and is cooperated, and right conical surface (11) edge withstands on the casing wall boss (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082400 CN2731187Y (en) | 2004-08-28 | 2004-08-28 | Hydraulic seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082400 CN2731187Y (en) | 2004-08-28 | 2004-08-28 | Hydraulic seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731187Y true CN2731187Y (en) | 2005-10-05 |
Family
ID=35051523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420082400 Expired - Lifetime CN2731187Y (en) | 2004-08-28 | 2004-08-28 | Hydraulic seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731187Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034383A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Environment-friendly 3D printer nozzle structure |
| CN106499823A (en) * | 2015-09-08 | 2017-03-15 | 刘付日叁 | A kind of novel super-high means of press seals |
-
2004
- 2004-08-28 CN CN 200420082400 patent/CN2731187Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034383A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Environment-friendly 3D printer nozzle structure |
| CN106499823A (en) * | 2015-09-08 | 2017-03-15 | 刘付日叁 | A kind of novel super-high means of press seals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG DAYANG SEWING MACHINE CO., LTD. Free format text: FORMER OWNER: CAO ZHONGQUAN Effective date: 20111010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 318010 TAIZHOU, ZHEJIANG PROVINCE TO: 318000 TAIZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111010 Address after: 318000 No. 18, South Central Road, Jiaojiang District, Zhejiang, Taizhou Patentee after: ZHEJIANG DAYANG SEWING MACHINE CO., LTD. Address before: 318010 No. 18, South Central Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: Cao Zhongquan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140828 Granted publication date: 20051005 |