CN202612607U - Lapped sealing ring - Google Patents
Lapped sealing ring Download PDFInfo
- Publication number
- CN202612607U CN202612607U CN 201220213447 CN201220213447U CN202612607U CN 202612607 U CN202612607 U CN 202612607U CN 201220213447 CN201220213447 CN 201220213447 CN 201220213447 U CN201220213447 U CN 201220213447U CN 202612607 U CN202612607 U CN 202612607U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- sealing ring
- shaped
- plunger
- sealing
- 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 title abstract description 14
- 238000000034 method Methods 0.000 claims description 7
- 229920006351 engineering plastic Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
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- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a lapped sealing ring in the field of sealing devices. Lap joints of a sealing ring are lapped through stepped surfaces which are laminated, an L-shaped notch is formed at one lapping end of the sealing ring, an L-shaped bump is formed at the other lapping end of the sealing ring, and the L-shaped bump and the L-shaped notch are laminated and lapped. By forming the L-shaped bump and the L-shaped notch, which are matched with each other, at the lap joints, when the sealing ring performs axial piston motion along a plunger, the bump and the notch can be pressed against each other and can be prevented from being separated, and the sealing performance of the plunger and a cylinder is improved. The lapped sealing ring can be applied to sealing the plunger and the cylinder and sealing a shaft and a shaft sleeve.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of seal ring.
Background technique
In the existing technology, the sealing between plunger and the oil cylinder is generally accomplished through the mode of suit rubber ring on plunger, because plunger carries out piston motion for a long time in cylinder; The intensity of rubber band is lower, can not satisfy required technical requirements, and is as shown in Figure 3; Disclose a kind of engineering plastics seal ring in the existing technology, the joint of said seal ring 1 connects through the stepped shaft hasp mode that cooperatively interacts, and its deficiency is; Because seal ring 1 can carry out reciprocal axial motion with plunger, in this movement process, between seal ring 1 hasp relative displacement can take place; Thereby make hasp thread off, thereby influence its sealing effect.
The model utility content
The purpose of the utility model is the problem that in the piston motion process, is prone to take place dropout to seal ring of the prior art, and a kind of lap seal circle is provided, and threads off to avoid it, strengthens the sealability between plunger and the cylinder body.
The purpose of the utility model is achieved in that a kind of lap seal circle; The ladder surface overlap joint of the overlap joint joint of said seal ring through being superimposed with each other; One of bond end of said seal ring forms L shaped notch; Another forms L shaped convexity the bond end of said seal ring, said L shaped convexity and the said L shaped notch overlap joint that is superimposed with each other.
The utility model is through being provided with L shaped convexity and the L shaped notch that cooperatively interacts in the hasp joint; Make seal ring when doing the axial piston motion with plunger; The mutual low pressure of ability is avoided threading off, compared with prior art between convexity and the notch; The beneficial effect of the utility model is, has strengthened the sealability between plunger and the cylinder body.The utility model can be used between plunger and the cylinder body, in the sealing between axle and the axle sleeve.
In order further to improve this device structure stability and sealability in use, the gap between the seal ring hasp cut sides is 1.4 ~ 1.8mm.
In order to strengthen the wear resistance of seal ring, said seal ring adopts the engineering plastics material to process.
Description of drawings
Fig. 1 is the structure principle chart at the utility model hasp two ends.
Fig. 2 is the utility model structure principle chart.
Fig. 3 is a seal ring of the prior art.
Wherein, 1 seal ring, 1aL shape notch, 1bL shape is protruding.
Embodiment
A kind of lap seal circle shown in Fig. 1-2; The ladder surface overlap joint of the overlap joint joint of seal ring 1 through being superimposed with each other; One of bond end of seal ring 1 forms L shaped notch 1a, and another forms L shaped protruding 1b the bond end of seal ring 1, L shaped protruding 1b and the L shaped notch 1a overlap joint that is superimposed with each other; Gap between the seal ring 1 hasp cut sides is 1.4 ~ 1.8mm, and seal ring adopts engineering plastics materials (especially teflon) to process.
The utility model is through being provided with L shaped protruding 1b and the L shaped notch 1a that cooperatively interacts in the hasp joint; Make seal ring 1 when doing the axial piston motion with plunger; The mutual low pressure of ability is avoided threading off between L shaped protruding 1b and the L shaped notch 1a, has strengthened the sealability between plunger and the cylinder body; Gap between the seal ring 1 hasp cut sides is arranged between 1.4 ~ 1.8mm, has guaranteed structure stability and the sealability of seal ring 1 when doing the piston movement process; The seal ring of engineering plastics material has strengthened its sealability.
The utility model is not limited to the foregoing description; On the basis of the disclosed technological scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characteristicss wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (3)
1. lap seal circle; The ladder surface overlap joint of the overlap joint joint of said seal ring through being superimposed with each other; It is characterized in that; One of bond end of said seal ring forms L shaped notch, and another forms L shaped convexity the bond end of said seal ring, said L shaped convexity and the said L shaped notch overlap joint that is superimposed with each other.
2. a kind of lap seal circle according to claim 1 is characterized in that, the gap between the said seal ring hasp cut sides is 1.4 ~ 1.8mm.
3. a kind of lap seal circle according to claim 1 and 2 is characterized in that, said seal ring adopts the engineering plastics material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213447 CN202612607U (en) | 2012-05-14 | 2012-05-14 | Lapped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213447 CN202612607U (en) | 2012-05-14 | 2012-05-14 | Lapped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612607U true CN202612607U (en) | 2012-12-19 |
Family
ID=47346308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220213447 Expired - Fee Related CN202612607U (en) | 2012-05-14 | 2012-05-14 | Lapped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138962A (en) * | 2015-10-13 | 2018-06-08 | Nok株式会社 | sealing ring |
| CN110041646A (en) * | 2018-01-17 | 2019-07-23 | 杨家义 | Ptfe composite, its production method and the inclusion seal circle using the material |
-
2012
- 2012-05-14 CN CN 201220213447 patent/CN202612607U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138962A (en) * | 2015-10-13 | 2018-06-08 | Nok株式会社 | sealing ring |
| CN110041646A (en) * | 2018-01-17 | 2019-07-23 | 杨家义 | Ptfe composite, its production method and the inclusion seal circle using the material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130514 |