CN205533517U - Two -way seal assembly of formula of proclaiming oneself - Google Patents
Two -way seal assembly of formula of proclaiming oneself Download PDFInfo
- Publication number
- CN205533517U CN205533517U CN201620050869.1U CN201620050869U CN205533517U CN 205533517 U CN205533517 U CN 205533517U CN 201620050869 U CN201620050869 U CN 201620050869U CN 205533517 U CN205533517 U CN 205533517U
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- CN
- China
- Prior art keywords
- sealing
- sealing ring
- seal
- piston rod
- sealed
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 230000009699 differential effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to a two -way seal assembly of formula of proclaiming oneself belongs to mechanical technical field. The utility model discloses a sealed the sealing ring can both be effectively sealed when guaranteeing piston rod bi -directional motion according to the equipment of face -to -face mode about with in the end about, two ends of the left and right sides with rubber becomes are sealed about, two sealing rings and middle part sealed constitution. The utility model discloses a characteristics lie in: work as the handle seal assembly packs into to the pneumatic cylinder end cap seal groove in and when compressing tightly with the end cover, the seal assembly atress warp makes the end to seal the hole face, the sealed hole face in sealing ring hole face and middle part compresses tightly the sealed effect that reaches the higher authorities of the outer disc of piston rod, open at the hydraulic oil pressure differential effect lower end sealing conical face and the sealing ring conical surface in addition, increase the contact force of sealed hole face in end and sealing ring hole face and the outer disc of piston rod, play further self sealing action, reinforcing seal assembly's sealed effect.
Description
Technical field
This utility model relates to a kind of self-sealing two way seal assembly, belongs to field of mechanical technique.
Background technology
Two-way seal is to prevent hydraulic oil from leaking between mutual motion faying face in Hydraulic Power Transmission System and prevent introduced contaminants from invading the part Hydraulic Power Transmission System, generally make with elastomeric material, common two-way seal is for leak-tight seal occasion between hydraulic cylinder end cover and piston rod, during hydraulic cylinder moves back and forth, sealing member two ends have oil pressure difference can make hydraulic fluid leak, the deformation of self-sealing sealing member operationally hydraulic fluid pressure official post, and be pressed on the part faying face that sealed increase sealing effectiveness further.From the point of view of the shape of sealing member, have O-ring seals, square seal ring, U-shaped sealing ring, a y-shaped ring etc., but in actual application the sealing ring of single shape to be applied in combination effect general.
Summary of the invention
This utility model purpose is to provide a kind of self-sealing two way seal assembly, for the problem solving to require during hydraulic cylinder moves back and forth to have two way seal performance.
The technical solution of the utility model is: a kind of self-sealing two way seal assembly, seals 3 including 1, two sealing rings 2 of two end seals made with rubber and a middle part；End seals 1 includes end seals bottom surface 11, end seals inner hole surface 12, the end seals conical surface 13；Sealing ring 2 includes sealing ring inner hole surface 21, the sealing ring conical surface 22；Described middle part seals 3 and includes that middle part seals inner hole surface 31, it is matched in clearance that end seals 1, sealing ring 2 and middle part seal between 3 and hydraulic cylinder end cover seal groove 4 and piston rod 6, being matched in clearance between piston rod 6 and the endoporus of hydraulic cylinder end cover seal groove 4 and end cover 5 endoporus, end cover 5 is fixed by screwing on the termination of hydraulic cylinder end cover seal groove 4 by the flange of its end.
The described left and right end seals conical surface 13 and right-left seal annular conical surface 22 are assembled by face-to-face mode, and self-sealing two way seal assembly is installed and is pressed on piston rod 6 periphery reach sealing function owing to crimp makes end seals inner hole surface 12, sealing ring inner hole surface 21 and middle part seal inner hole surface 31 after compressing；Hydraulic fluid pressure difference effect makes the end seals conical surface 13 and the sealing ring conical surface 22 open, can effective sealing function when reaching piston rod 6 bidirectional-movement.
Operation principle of the present utility model is: under end cover 5 compresses, end seals bottom surface 11 stress makes end seals 1, sealing ring 2 and middle part seal 3 stress crimps and be filled in hydraulic cylinder end cover seal groove 4, cause end seals inner hole surface 12, sealing ring inner hole surface 21 and middle part to seal inner hole surface 31 to be pressed on piston rod 6 periphery, reach multi-stage sealed effect.Inside and outside hydraulic cylinder end cover seal groove 4, hydraulic oil has pressure differential, hydraulic fluid pressure is there is poor about each sealing member, the end seals conical surface 13 outside hydraulic cylinder and the sealing ring conical surface 22 are opened, increase end seals inner hole surface 12 and sealing ring inner hole surface 21 and the contact force of piston rod 6 periphery, further enhance self sealing action.
The beneficial effects of the utility model are: the crimp of sealing member self and hydraulic fluid pressure difference effect can increase the contact force of sealed working face and piston rod surface, the problem effectively solving to seal anti-leak.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model；
Fig. 2 is survey view of the present utility model；
Fig. 3 is component drawings of the present utility model.
Figure is respectively numbered: 1-end seals, 2-sealing ring, seals in the middle part of 3-, 4-hydraulic cylinder end cover seal groove, 5-end cover, 6-piston rod, 11-end seals bottom surface, 12-end seals inner hole surface, the 13-end seals conical surface, 21-sealing ring inner hole surface, the 22-sealing ring conical surface, seal inner hole surface in the middle part of 31-.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the utility model is described in further detail, but content of the present utility model is not limited to described scope.
Embodiment 1: as Figure 1-3, a kind of self-sealing two way seal assembly, seal 3 including two, the left and right made with rubber end seals 1, two, left and right sealing ring 2 and a middle part.End seals 1 includes end seals bottom surface 11, end seals inner hole surface 12 and the end seals conical surface 13；Sealing ring 2 includes sealing ring inner hole surface 21 and the sealing ring conical surface 22；Middle part seals 3 and includes that middle part seals inner hole surface 31.It is matched in clearance that end seals 1, sealing ring 2 and middle part seal between 3 and hydraulic cylinder end cover seal groove 4 and piston rod 6, being matched in clearance between piston rod 6 and the endoporus of hydraulic cylinder end cover seal groove 4 and end cover 5 endoporus, end cover 5 is fixed by screwing on the termination of hydraulic cylinder end cover seal groove 4 by the flange of its end.The left and right end seals conical surface 13 and right-left seal annular conical surface 22 are assembled by face-to-face mode, it is ensured that can effectively seal during piston rod 6 bidirectional-movement.Self-sealing two way seal assembly is installed in hydraulic cylinder end cover seal groove 4, and endoporus loads onto piston rod 6, and one end end cover 5 compresses.Under end cover 5 compresses, end seals bottom surface 11 stress makes end seals 1, sealing ring 2 and middle part seal 3 stress crimps and be filled in hydraulic cylinder end cover seal groove 4, cause end seals inner hole surface 12, sealing ring inner hole surface 21 and middle part to seal inner hole surface 31 to be pressed on piston rod 6 periphery, reach multi-stage sealed effect.Inside and outside hydraulic cylinder end cover seal groove 4, hydraulic oil has pressure differential, hydraulic fluid pressure is there is poor about each sealing member, the end seals conical surface 13 outside hydraulic cylinder and the sealing ring conical surface 22 are opened, increase end seals inner hole surface 12 and sealing ring inner hole surface 21 and the contact force of piston rod 6 periphery, further enhance self sealing action.
Embodiment 2: as Figure 1-3, a kind of self-sealing two way seal assembly, seal 3 including 1, two sealing rings 2 of two end seals made with rubber and a middle part；End seals 1 includes end seals bottom surface 11, end seals inner hole surface 12, the end seals conical surface 13；Sealing ring 2 includes sealing ring inner hole surface 21, the sealing ring conical surface 22；Described middle part seals 3 and includes that middle part seals inner hole surface 31, it is matched in clearance that end seals 1, sealing ring 2 and middle part seal between 3 and hydraulic cylinder end cover seal groove 4 and piston rod 6, being matched in clearance between piston rod 6 and the endoporus of hydraulic cylinder end cover seal groove 4 and end cover 5 endoporus, end cover 5 is fixed by screwing on the termination of hydraulic cylinder end cover seal groove 4 by the flange of its end.
The described left and right end seals conical surface 13 and right-left seal annular conical surface 22 are assembled by face-to-face mode, and self-sealing two way seal assembly is installed and is pressed on piston rod 6 periphery reach sealing function owing to crimp makes end seals inner hole surface 12, sealing ring inner hole surface 21 and middle part seal inner hole surface 31 after compressing；Hydraulic fluid pressure difference effect makes the end seals conical surface 13 and the sealing ring conical surface 22 open, can effective sealing function when reaching piston rod 6 bidirectional-movement.
Above in conjunction with accompanying drawing, detailed description of the invention of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from this utility model objective, various changes can be made.
Claims (2)
1. a self-sealing two way seal assembly, it is characterised in that: include that two end seals (1), two sealing rings (2) and the middle part made with rubber seal (3)；End seals (1) includes end seals bottom surface (11), end seals inner hole surface (12), the end seals conical surface (13)；Sealing ring (2) includes sealing ring inner hole surface (21), the sealing ring conical surface (22)；Described middle part seals (3) and includes that middle part seals inner hole surface (31), it is matched in clearance that end seals (1), sealing ring (2) and middle part seal between (3) and hydraulic cylinder end cover seal groove (4) and piston rod (6), being matched in clearance between piston rod (6) and the endoporus of hydraulic cylinder end cover seal groove (4) and end cover (5) endoporus, end cover (5) is fixed by screwing on the termination of hydraulic cylinder end cover seal groove (4) by the flange of its end.
Self-sealing two way seal assembly the most according to claim 1, it is characterized in that: the described left and right end seals conical surface (13) and right-left seal annular conical surface (22) are assembled by face-to-face mode, self-sealing two way seal assembly is installed and is pressed on piston rod (6) periphery reach sealing function owing to crimp makes end seals inner hole surface (12), sealing ring inner hole surface (21) and middle part seal inner hole surface (31) after compressing；Hydraulic fluid pressure difference effect makes the end seals conical surface (13) and the sealing ring conical surface (22) open, can effective sealing function when reaching piston rod (6) bidirectional-movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050869.1U CN205533517U (en) | 2016-01-20 | 2016-01-20 | Two -way seal assembly of formula of proclaiming oneself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050869.1U CN205533517U (en) | 2016-01-20 | 2016-01-20 | Two -way seal assembly of formula of proclaiming oneself |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533517U true CN205533517U (en) | 2016-08-31 |
Family
ID=56766538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620050869.1U Expired - Fee Related CN205533517U (en) | 2016-01-20 | 2016-01-20 | Two -way seal assembly of formula of proclaiming oneself |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904286A (en) * | 2021-12-13 | 2022-01-07 | 江苏亨通海洋光网系统有限公司 | High-pressure cabin-penetrating sealing structure and method for submarine cable test |
-
2016
- 2016-01-20 CN CN201620050869.1U patent/CN205533517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904286A (en) * | 2021-12-13 | 2022-01-07 | 江苏亨通海洋光网系统有限公司 | High-pressure cabin-penetrating sealing structure and method for submarine cable test |
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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: 20160831 Termination date: 20180120 |