CN203856799U - Pneumatic frame piston rod seal - Google Patents
Pneumatic frame piston rod seal Download PDFInfo
- Publication number
- CN203856799U CN203856799U CN201420268903.3U CN201420268903U CN203856799U CN 203856799 U CN203856799 U CN 203856799U CN 201420268903 U CN201420268903 U CN 201420268903U CN 203856799 U CN203856799 U CN 203856799U
- Authority
- CN
- China
- Prior art keywords
- polyurethane
- seal
- metal frame
- hermetic unit
- groove
- 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
- 229920002635 polyurethane Polymers 0.000 claims abstract description 23
- 239000004814 polyurethane Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 239000004519 grease Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a pneumatic frame piston rod seal comprising a metal frame portion and a polyurethane seal portion. The metal frame portion and the polyurethane seal portion are adhered together to form an integral seal part in an injection molding manner. The polyurethane seal portion comprises a main seal part and a secondary seal part, each of the main seal part and the secondary seal part comprises a seal lip in r-angle design, a groove is arranged between the main seal part and the secondary seal part, and the bottom of the groove is provided with a plurality of holes through which the polyurethane seal portion and the metal frame portion are well adhered. The metal frame portion provides rigidity for mounting of a sealing ring of the pneumatic frame piston rod seal, the sealing ring and the groove are guaranteed to be lightly mounted together, and the sealing ring is less prone to falling, distorting and deformation and moving in the groove during use.
Description
Technical field
The utility model relates to a kind of pneumatic skeleton rod seal.
Background technique
Cylinder is gradually to microminiaturization, integrated, improves reliability and the development that increases the service life of element.Common exoskeletal rod seal stability in installation or using process is not enough, easy torsional deformation in installation process, the installation rigidity in use providing is not enough, easily cause seal ring vibration, distortion, when serious, can cause the inefficacy of seal ring, leak gas and do not have seal action, even causing the damage of seal ring.
Model utility content
In order to improve installation stability and the stability in use of rod seal, the utility model provides a kind of pneumatic skeleton rod seal.
The technical solution of the utility model is as follows:
A kind of pneumatic skeleton rod seal, comprise metal frame part and polyurethane hermetic unit, described metal frame part and described polyurethane hermetic unit are by whole Sealing of mode formation cemented together of injection moulding, wherein, described polyurethane hermetic unit comprises primary seal portion and the second sealed department, described primary seal portion is the sealing lip of r angle design, described the second sealed department is the sealing lip of r angle design, between described primary seal portion and the second sealed department, be also provided with groove, described channel bottom is provided with the some holes of polyurethane hermetic unit and metal frame part together with well cementing that make.
Preferably, described in, make the hole of polyurethane hermetic unit and metal frame part together with well cementing arrange three.
Compared with prior art, the beneficial effects of the utility model are as follows:
The installation of the seal ring that the metal frame part of the one, pneumatic skeleton rod seal of the present utility model is pneumatic skeleton rod seal provides rigidity, guarantee that sealing circle and groove are closely installed together, in use also difficult drop-off, torsional deformation and vibration in groove;
The 2nd, primary seal portion and the second sealed department are respectively the sealing lip of r angle design, and the sealing lip of this kind of r angle design plays good seal action, and the r angle of design can store grease effectively, guarantees to lubricate, and reduces friction, has guaranteed the life-span;
The 3rd. be arranged on three equally distributed hole good fixing metal skeleton parts of described polyurethane hermetic unit, make polyurethane hermetic unit and metal frame part well cemented together.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model embodiment's pneumatic skeleton rod seal.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.Following examples, only for illustrating, limit protection domain of the present utility model and be not used in.
Embodiment
Refer to Fig. 1, a kind of pneumatic skeleton rod seal that the present embodiment provides, comprise metal frame part 4 and polyurethane hermetic unit 5, wherein metal frame part 4 and polyurethane hermetic unit 5 are by whole Sealing of mode formation cemented together of injection moulding, wherein, polyurethane hermetic unit 5 comprises primary seal portion and the second sealed department, wherein primary seal portion is the sealing lip 1 of r angle design, the second sealed department is the sealing lip 3 of r angle design, between primary seal portion and the second sealed department, be provided with groove 6, these groove 6 bottoms are provided with the some holes 2 of polyurethane hermetic unit 5 and metal frame part 4 together with well cementing that make.
Wherein, the above-mentioned hole 2 of polyurethane hermetic unit 5 and metal frame part 4 together with well cementing that make arranges three.
The pneumatic skeleton rod seal of the present embodiment has the following advantages:
The installation of the seal ring that the metal frame part of the one, pneumatic skeleton rod seal of the present utility model is pneumatic skeleton rod seal provides rigidity, guarantee that sealing circle and groove are closely installed together, in use also difficult drop-off, torsional deformation and vibration in groove;
The 2nd, primary seal portion and the second sealed department are the sealing lip of r angle design, and the sealing lip of this r angle design plays good seal action, and the r angle of design can store grease effectively, guarantees to lubricate, and reduces friction, has guaranteed the life-span;
The 3rd. be arranged on three equally distributed hole good fixing metal skeleton parts of described polyurethane hermetic unit, make polyurethane hermetic unit and metal frame part well cemented together.
Disclosed is above only the utility model preferred embodiment.Preferred embodiment does not have all details of detailed descriptionthe, and also not limiting this model utility is only described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to explain better principle of the present utility model and practical application, thereby make one of ordinary skill in the art can utilize well the utility model.The utility model is only subject to the restriction of claims and four corner and equivalent.
Claims (2)
1. a pneumatic skeleton rod seal, it is characterized in that, comprise metal frame part and polyurethane hermetic unit, described metal frame part and described polyurethane hermetic unit are by whole Sealing of mode formation cemented together of injection moulding, wherein, described polyurethane hermetic unit comprises primary seal portion and the second sealed department, described primary seal portion is the sealing lip of r angle design, described the second sealed department is the sealing lip of r angle design, between described primary seal portion and the second sealed department, be also provided with groove, described channel bottom is provided with the some holes of polyurethane hermetic unit and metal frame part together with well cementing that make.
2. pneumatic skeleton rod seal as claimed in claim 1, is characterized in that, described in make the hole of polyurethane hermetic unit and metal frame part together with well cementing arrange three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268903.3U CN203856799U (en) | 2014-05-23 | 2014-05-23 | Pneumatic frame piston rod seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268903.3U CN203856799U (en) | 2014-05-23 | 2014-05-23 | Pneumatic frame piston rod seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856799U true CN203856799U (en) | 2014-10-01 |
Family
ID=51606653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268903.3U Expired - Lifetime CN203856799U (en) | 2014-05-23 | 2014-05-23 | Pneumatic frame piston rod seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402387A (en) * | 2016-07-26 | 2017-02-15 | 北京化工大学 | Rubber sealing ring used for gas filter locking ring type quick-opening blind plate structure |
-
2014
- 2014-05-23 CN CN201420268903.3U patent/CN203856799U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402387A (en) * | 2016-07-26 | 2017-02-15 | 北京化工大学 | Rubber sealing ring used for gas filter locking ring type quick-opening blind plate structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1, No. 373 Renqing Road, Pudong New Area, Shanghai, 200319 Patentee after: Shanghai Weiwan Sealing Technology Co.,Ltd. Address before: 200319, No. 1300, Lane 3, Cambridge East Road, Cambridge Town, Shanghai, Pudong New Area Patentee before: VONESEALS TECHNOLOGY (SHANGHAI) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
|
| CX01 | Expiry of patent term |