CN204828671U - A one -way sealing circle for piston rod packing - Google Patents
A one -way sealing circle for piston rod packing Download PDFInfo
- Publication number
- CN204828671U CN204828671U CN201520459677.1U CN201520459677U CN204828671U CN 204828671 U CN204828671 U CN 204828671U CN 201520459677 U CN201520459677 U CN 201520459677U CN 204828671 U CN204828671 U CN 204828671U
- Authority
- CN
- China
- Prior art keywords
- lip
- way sealing
- seal
- sealed body
- rod
- 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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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to an one -way sealing circle for piston rod packing, including sealed main part, be equipped with first lip and second lip in the sealed main part, be equipped with first V -arrangement recess between first lip and the side, be equipped with between first lip and the second lip to inside the 2nd sunken V type recess of sealed main part. The utility model discloses in, set up the 2nd V type recess between first lip and second lip, when first lip and second lip pressurized shrinkage deformation, still can keep partly emollient in the 2nd V type recess, play lubrication action, dry friction phenomenon when effectively having avoided the hydro -cylinder operation to the life of extension one -way sealing circle.
Description
Technical field
The utility model relates to Multi-stage cylinder rod seal field, particularly relates to a kind of one-way sealing seal for rod seal.
Background technique
Along with the raising of the industrial automatization of numerous industrial and mining enterprise, sealed product plays key player in industrial automation, and the quality of sealed product quality, plays key effect in dynaflow in industrial automation.At present, Sealing in hydraulic system adopts structure as shown in Figure 1 usually, i.e. Yx RunddichtringO 1, the seal ring of this structure, when it bears larger top pressure, the inner side surface of seal ring and lip 2 are understood and piston rod close contact, oiling agent is extruded gap therebetween, cause dry friction phenomenon, make ring wear serious, even lose seal action.
Model utility content
The utility model provides a kind of one-way sealing seal for rod seal, to solve the above-mentioned technical problem of the existing one-way sealing seal for rod seal.
For solving the problems of the technologies described above, the utility model provides a kind of one-way sealing seal for rod seal, comprise sealed body, described sealed body is provided with the first lip and the second lip, be provided with the first v-depression between described first lip and side, between described first lip and the second lip, be provided with the second V-type groove to sealed body inner recess.
Preferably, the cross section of described first lip is trapezoidal, and the side on shorter base is near piston rod.
Preferably, the cross section of described second lip is triangle, and outstanding drift angle is near piston rod.
Preferably, the bottom of described first V-type groove is arc-shaped.
Preferably, be the first smooth section between described first lip and the second V-type groove.
Preferably, be the second smooth section between described second lip and edge.
Preferably, described sealed body adopts nitrile rubber material to make.
Preferably, described sealed body is adopted made of plastic.
Compared with prior art, a kind of one-way sealing seal for rod seal that the utility model provides, comprise sealed body, described sealed body is provided with the first lip and the second lip, be provided with the first v-depression between described first lip and side, between described first lip and the second lip, be provided with the second V-type groove to sealed body inner recess.In the utility model, second V-type groove is set between the first lip and the second lip, when the first lip and the second lip pressurized contraction deformation, still a part of oiling agent can be retained in second V-type groove, play lubrication, effectively prevent dry friction phenomenon when oil cylinder runs, thus extend the working life of one-way sealing seal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the existing one-way sealing seal for rod seal;
Fig. 2 is the structural representation of the one-way sealing seal for rod seal of the utility model one specific embodiment mode.
In Fig. 1: 1-Yx RunddichtringO, 2-lip;
In Fig. 2: 10-sealed body, 11-first lip, 12-second lip, 13-first V-type groove, 14-second V-type groove, 15-first smooth section, 16-second smooth section.
Embodiment
In order to the technological scheme of the above-mentioned model utility of more detailed statement, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.
A kind of one-way sealing seal for rod seal that the utility model provides, please refer to Fig. 2, comprise sealed body 10, described sealed body 10 is provided with the first lip 11 and the second lip 12, be provided with the first v-depression 13 between described first lip 11 and side, between described first lip 11 and the second lip 12, be provided with the second V-type groove 14 to sealed body 10 inner recess.In the utility model, between the first lip 11 and the second lip 12, the second V-type groove 14 is set, when the first lip 11 and the second lip 12 pressurized contraction deformation, still a part of oiling agent can be retained in second V-type groove 14, play lubrication, effectively prevent dry friction phenomenon when oil cylinder runs, thus extend the working life of one-way sealing seal.
Preferably, please continue to refer to Fig. 2, the cross section of described first lip 11 is trapezoidal, and the side on shorter base is near piston rod (not shown); The cross section of described second lip 12 is triangle, and outstanding drift angle is near piston rod, and when seal ring is subject to lateral pressure, the angle of the first V-type groove expands, and the first lip 11 plays the seal action with piston rod; If be subject to top pressure, the first lip 11 and the second lip 12 are pressed close to piston rod simultaneously, can play sealing effect equally.
Preferably, please continue to refer to Fig. 2, the bottom of described first V-type groove 13 is arc-shaped, and when avoiding receiving reciprocal pressure, the first V-type groove 13 is torn from bottom.
Preferably, please continue to refer to Fig. 2, be the first smooth section 15 between described first lip 11 and the second V-type groove 14; Be the second smooth section 16 between described second lip 12 and edge, guarantee the laminating degree of sealed body 10 and piston rod.
Preferably, described sealed body 10 adopts nitrile rubber material or plastics to make, and has the anti-of good oil resistance, wear resistance and excellence and extrudes intensity.
In sum, a kind of one-way sealing seal for rod seal that the utility model provides, comprise sealed body 10, described sealed body 10 is provided with the first lip 11 and the second lip 12, be provided with the first v-depression 13 between described first lip 11 and side, between described first lip 11 and the second lip 12, be provided with the second V-type groove 14 to sealed body 10 inner recess.In the utility model, between the first lip 11 and the second lip 12, the second V-type groove 14 is set, when the first lip 11 and the second lip 12 pressurized contraction deformation, still a part of oiling agent can be retained in second V-type groove 14, play lubrication, effectively prevent dry friction phenomenon when oil cylinder runs, thus extend the working life of one-way sealing seal.
Obviously, those skilled in the art can carry out various change and modification to model utility and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. the one-way sealing seal for rod seal, comprise sealed body, it is characterized in that, described sealed body is provided with the first lip and the second lip, be provided with the first v-depression between described first lip and side, between described first lip and the second lip, be provided with the second V-type groove to sealed body inner recess.
2., as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, the cross section of described first lip is trapezoidal, and the side on shorter base is near piston rod.
3. as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, the cross section of described second lip is triangle, and outstanding drift angle is near piston rod.
4., as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, the bottom of described first V-type groove is arc-shaped.
5., as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, be the first smooth section between described first lip and the second V-type groove.
6., as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, be the second smooth section between described second lip and edge.
7. as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, described sealed body adopts nitrile rubber material to make.
8., as claimed in claim 1 for the one-way sealing seal of rod seal, it is characterized in that, described sealed body is adopted made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459677.1U CN204828671U (en) | 2015-06-30 | 2015-06-30 | A one -way sealing circle for piston rod packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459677.1U CN204828671U (en) | 2015-06-30 | 2015-06-30 | A one -way sealing circle for piston rod packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828671U true CN204828671U (en) | 2015-12-02 |
Family
ID=54686274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459677.1U Expired - Fee Related CN204828671U (en) | 2015-06-30 | 2015-06-30 | A one -way sealing circle for piston rod packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678370A (en) * | 2016-12-16 | 2017-05-17 | 安徽亚兰密封件有限公司 | Durable sealing ring good in sealing effect |
-
2015
- 2015-06-30 CN CN201520459677.1U patent/CN204828671U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678370A (en) * | 2016-12-16 | 2017-05-17 | 安徽亚兰密封件有限公司 | Durable sealing ring good in sealing effect |
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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: 20151202 Termination date: 20190630 |