CN212775570U - Double-acting dustproof sealing ring - Google Patents
Double-acting dustproof sealing ring Download PDFInfo
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- CN212775570U CN212775570U CN202021625564.1U CN202021625564U CN212775570U CN 212775570 U CN212775570 U CN 212775570U CN 202021625564 U CN202021625564 U CN 202021625564U CN 212775570 U CN212775570 U CN 212775570U
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- Prior art keywords
- seal lip
- angle
- sealing
- lip
- setting
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 239000000428 dust Substances 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 18
- 238000009434 installation Methods 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a two effect dust sealing circle, including the sealing washer body, the sealing washer body is including sealed main part and the first seal lip and the second seal lip of setting respectively in the bottom both sides of sealed main part, and sealed main part has upper surface, left surface, right flank, lower surface, and the upper surface is just to setting up with the lower surface level, and the left surface is vertical just to setting up with the right flank, and first seal lip is connected the setting with left surface and lower surface respectively, and the second seal lip is connected the setting with right flank and lower surface respectively. Set up first seal lip and second seal lip and prevent dust, first seal lip and second seal lip and piston rod contact, the extrusion installation can prevent effectively that outside dust and impurity from getting into.
Description
Technical Field
The utility model relates to a two effect dust seal.
Background
The importance of the sealing rings of the prior art machines is self-evident in determining the transmission properties of fluids and gases and the quality of the sealed products in industrial automation.
At present, a sealing device between pneumatic/hydraulic elements usually only selects a single sealing element such as a sealing ring, but the structural arrangement has the problems of poor dustproof performance, poor sealing performance and the like.
SUMMERY OF THE UTILITY MODEL
According to the utility model discloses an aspect provides two effect dust seal circle, including the sealing washer body, the sealing washer body is including sealed main part and the first seal lip and the second seal lip of setting respectively in the bottom both sides of sealed main part, and sealed main part has the upper surface, the left surface, the right flank, the lower surface, and the upper surface is just to setting up with the lower surface level, and the left surface is vertical just to setting up with the right flank, and first seal lip is connected the setting with left surface and lower surface respectively, and the second seal lip is connected the setting with right surface and lower surface respectively. Set up first seal lip and second seal lip and prevent dust, first seal lip and second seal lip and piston rod contact, the extrusion installation can prevent effectively that outside dust and impurity from getting into.
In some embodiments, the first sealing lip has a first upper inclined surface, a first side surface and a first lower inclined surface connected in sequence, wherein a head end of the first upper inclined surface is connected with a bottom end of the left side surface, and a tail end of the first lower inclined surface is connected with a left end of the lower surface.
In some embodiments, the second sealing lip has a second upper inclined surface, a second side surface and a second lower inclined surface connected in sequence, wherein a head end of the second upper inclined surface is connected with a bottom end of the right side surface, and a tail end of the second lower inclined surface is connected with a right end of the lower surface.
In some embodiments, the included angle between the first upper inclined surface and the left side surface is an obtuse angle of 120 ° to 150 °, and the included angle between the first lower inclined surface and the lower surface is an obtuse angle of 150 ° to 170 °. The obtuse angle can be set to have larger extrusion gap and anti-extrusion capacity, so that the dustproof and sealing effect is better.
In some embodiments, the included angle between the second upper inclined surface and the right side surface is an obtuse angle of 120 ° to 150 °, and the included angle between the second lower inclined surface and the lower surface is an obtuse angle of 150 ° to 170 °. The obtuse angle can be set to have larger extrusion gap and anti-extrusion capacity, so that the dustproof and sealing effect is better.
In some embodiments, the first sealing lip and the second sealing lip are symmetrically disposed. Two sealing lips are symmetrically arranged, so that stable and reliable dustproof performance and sealing performance can be guaranteed, and higher pressure can be borne.
In some embodiments, a chamfer is provided between the upper surface and the left side surface at an angle of 30 ° to 60 °. The chamfer plays a guiding role, and the installation is quicker and more convenient.
In some embodiments, a chamfer is provided between the upper surface and the right side surface at an angle of 30 ° to 60 °. The chamfer plays a guiding role, and the installation is quicker and more convenient.
In some embodiments, the sealing main body, the first sealing lip and the second sealing lip are of an integrally formed structure, the integrally formed structure is good in integrity, simple to install and good in sealing effect.
Drawings
Fig. 1 is a schematic cross-sectional view of a double-acting dustproof sealing ring according to an embodiment of the present invention;
fig. 2 is a schematic view of the installation of the double-acting dust seal shown in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1-2 schematically illustrate a double acting dust seal according to an embodiment of the present invention. As shown in the figure, the utility model discloses a sealing washer is used for the dust seal between cylinder body 200 and the piston rod 300, and piston rod 300 and cylinder body 200 clearance fit offer the installation slot 210 that is used for installing dust seal on the cylinder body 200. Double-acting dustproof sealing ring comprises a sealing ring body, the sealing ring body comprises a sealing main body 100 and a first sealing lip 150 and a second sealing lip 160 which are arranged on two sides of the bottom of the sealing main body 100 respectively, the sealing main body 100 is provided with an upper surface 110, a left side surface 120, a right side surface 130, a lower surface 140, the upper surface 110 is horizontally arranged right to the lower surface 140, the left side surface 120 is vertically arranged right to the right side surface 130, the first sealing lip 150 is connected with the left side surface 120 and the lower surface 140 respectively, and the second sealing lip 160 is connected with the right side surface 130 and the lower surface 140 respectively. The first seal lip 150 has a first upper inclined surface 151, a first side surface 152 and a first lower inclined surface 153 sequentially connected to each other, a head end of the first upper inclined surface 151 is connected to a bottom end of the left side surface 120, and a tail end of the first lower inclined surface 153 is connected to a left end of the lower surface 140. The second sealing lip 160 has a second upper inclined surface 161, a second side surface 162 and a second lower inclined surface 163 sequentially connected to each other, wherein a head end of the second upper inclined surface 161 is connected to a bottom end of the right side surface 130, and a tail end of the second lower inclined surface 163 is connected to a right end of the lower surface 140. The upper surface 110, the left side 120 and the right side 130 are embedded into the mounting groove 210 on the cylinder body 200, the bottom of the first sealing lip 150 and the bottom of the second sealing lip 160 are in contact with the piston rod 300, and are in interference fit with the piston rod 300, the outer diameter is extruded for mounting, when the piston rod 300 moves, the first sealing lip 150 and the second sealing lip 160 of the dustproof sealing ring are tightly attached to the piston rod 300, so that external dust and impurities can be effectively prevented from entering, and a good sealing effect is achieved.
In this embodiment, the included angle between the first upper inclined surface 151 and the left side surface 120 is an obtuse angle, and the angle is 120 ° to 150 °, and preferably 130 °, and the included angle between the first lower inclined surface 153 and the lower surface 140 is an obtuse angle, and the angle is 150 ° to 170 °, and preferably 160 °. Because the dust seal during the installation of dust seal extrusion, the dust seal is under the condition of the same extrusion volume, the larger the dust seal is with the area of contact of complex piston rod 300, the better the sealing effect, consequently, when the contained angle sets up to the obtuse angle, under the condition of the same extrusion volume, first seal lip 150 and second seal lip 160 receive the extrusion to produce elastic deformation back, its area of contact with complex piston rod 300 can be bigger, thereby it is better to make sealed effect, and set up to the obtuse angle and can possess bigger extrusion clearance and anti extrusion capacity, consequently, better dustproof and sealed effect has.
In this embodiment, the included angle between the second upper inclined surface 161 and the right side surface 130 is an obtuse angle, and the angle is 120 ° to 150 °, and the included angle between the second lower inclined surface 163 and the lower surface 140 is an obtuse angle, and the angle is 150 ° to 170 °. Because the dust seal during the installation of dust seal extrusion, the dust seal is under the condition of the same extrusion volume, the larger the dust seal is with the area of contact of complex piston rod 300, the better the sealing effect, consequently, when the contained angle sets up to the obtuse angle, under the condition of the same extrusion volume, first seal lip 150 and second seal lip 160 receive the extrusion to produce elastic deformation back, its area of contact with complex piston rod 300 can be bigger, thereby it is better to make sealed effect, and set up to the obtuse angle and can possess bigger extrusion clearance and anti extrusion capacity, consequently, better dustproof and sealed effect has.
In this embodiment, the first sealing lip 150 and the second sealing lip 160 are symmetrically disposed. Two sealing lips are symmetrically arranged, so that stable and reliable dustproof performance and sealing performance can be guaranteed, and higher pressure can be borne.
In this embodiment, a chamfer is provided between the upper surface 110 and the left side surface 120, and the angle is 30 ° to 60 °, preferably 45 °. The chamfer plays a guiding role, and the installation is quicker and more convenient.
In this embodiment, a chamfer is provided between the upper surface 110 and the right side surface 130, and the angle is 30 ° to 60 °, preferably 45 °. The chamfer plays a guiding role, and the installation is quicker and more convenient.
In this embodiment, the sealing body 100, the first sealing lip 150 and the second sealing lip 160 are integrally formed, so that the integral forming is good, the installation is simple, and the sealing effect is good.
The utility model discloses a two effect dust seal unique geometry can produce prestressing force and reach the dust seal effect when piston rod 300 moves, prevents the entering of outside dust, impurity and water smoke through first seal lip 150 and second seal lip 160 to can strike off the foul on the piston rod 300, simple structure, the resistance to pressure is strong, and the dust seal is effectual.
The above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (9)
1. Double-acting dust seal, its characterized in that, including the sealing washer body, the sealing washer body is including sealed main part and first seal lip and the second seal lip of setting respectively in the bottom both sides of sealed main part, sealed main part has upper surface, left surface, right flank, lower surface, the upper surface is just to setting up with the lower surface level, the left surface is vertical just to setting up with the right flank, first seal lip is connected the setting with left surface and lower surface respectively, the second seal lip is connected the setting with right flank and lower surface respectively.
2. A double acting dust seal according to claim 1, wherein said first sealing lip has a first upper bevel, a first side surface and a first lower bevel connected in series, the head end of said first upper bevel being connected to the bottom end of the left side surface, the tail end of said first lower bevel being connected to the left end of the lower surface.
3. A double acting dust seal according to claim 1 wherein said second lip has a second upper bevel, a second side surface and a second lower bevel connected in series, the head end of said second upper bevel being connected to the bottom end of said right side surface and the tail end of said second lower bevel being connected to the right end of said lower surface.
4. A double-acting dustproof sealing ring according to claim 2, wherein an included angle between the first upper inclined surface and the left side surface is an obtuse angle and an angle is 120-150 °, and an included angle between the first lower inclined surface and the lower surface is an obtuse angle and an angle is 150-170 °.
5. A double-acting dustproof sealing ring according to claim 3, wherein the included angle between the second upper inclined surface and the right side surface is an obtuse angle of 120-150 °, and the included angle between the second lower inclined surface and the lower surface is an obtuse angle of 150-170 °.
6. A double acting dust seal according to claim 1 wherein said first and second lips are symmetrically disposed.
7. A double acting dust sealing ring according to claim 1, wherein a chamfer is provided between the upper surface and the left side at an angle of 30 ° to 60 °.
8. A double acting dust sealing ring according to claim 1, wherein a chamfer is provided between the upper surface and the right flank at an angle of 30 ° to 60 °.
9. A double acting dust seal according to any one of claims 1 to 8 wherein the seal body, first seal lip and second seal lip are of integrally formed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021625564.1U CN212775570U (en) | 2020-08-06 | 2020-08-06 | Double-acting dustproof sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021625564.1U CN212775570U (en) | 2020-08-06 | 2020-08-06 | Double-acting dustproof sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775570U true CN212775570U (en) | 2021-03-23 |
Family
ID=75051472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021625564.1U Expired - Fee Related CN212775570U (en) | 2020-08-06 | 2020-08-06 | Double-acting dustproof sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775570U (en) |
-
2020
- 2020-08-06 CN CN202021625564.1U patent/CN212775570U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |