CN211118104U - Self-tightening pneumatic sealing ring - Google Patents
Self-tightening pneumatic sealing ring Download PDFInfo
- Publication number
- CN211118104U CN211118104U CN201922374017.4U CN201922374017U CN211118104U CN 211118104 U CN211118104 U CN 211118104U CN 201922374017 U CN201922374017 U CN 201922374017U CN 211118104 U CN211118104 U CN 211118104U
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- China
- Prior art keywords
- sealing ring
- ring
- reinforcing steel
- sealing
- middle reinforcing
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- Expired - Fee Related
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Abstract
The utility model discloses a from compact form pneumatic seal circle mainly solves the problem that current pneumatic seal circle uses the back for a long time that sealed effect is not good, life is short. The sealing ring comprises an upper sealing ring, a middle reinforcing steel ring and a lower sealing ring which are sequentially stacked and fixedly connected and are all annular, and a circle of sealing ring which is fixedly connected to the inner side wall of an integral ring formed by the upper sealing ring, the middle reinforcing steel ring and the lower sealing ring; the section length of the upper sealing ring is smaller than that of the lower sealing ring, and the section length of the middle reinforcing steel ring is equal to that of the lower sealing ring. Through the design, the utility model discloses a sealing washer intensity is big, utilizes in the pipeline high-pressure gas who passes through to enter into the passageway cavity, makes the sealing ring of sealing washer tighter with the pipeline sealing contact surface laminating under gaseous oppression, simple structure, and convenient to use is sealed effectual. Therefore, the method has high use value and popularization value.
Description
Technical Field
The utility model relates to a sealing washer, specifically speaking relates to a pneumatic sealing washer of self-clinching formula.
Background
The pneumatic sealing ring is an important one of pneumatic accessories and is roughly divided into a dynamic sealing ring and a static sealing ring, the sealing required between a similar cylinder cover and a similar cylinder barrel is the static sealing ring which is used at a fixed place, the sealing between a similar piston rod and the similar cylinder barrel is called the dynamic sealing ring, the dynamic sealing ring is used at a rotating and reciprocating part, the static sealing ring is easy and has low requirement, and the dynamic sealing ring has high requirement because of reciprocating motion and friction.
Because the sealing ring is directly contacted with the sealed surface, when the sealing ring works, the sealing ring and the sealed surface are dynamically sealed, and the sealing ring is easy to be worn and easy to cause leakage, so the service life of the sealing ring is short.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from compact form pneumatic seal circle mainly solves the problem that current pneumatic seal circle uses the back for a long time sealed effect not good, life is short.
In order to achieve the above object, the utility model adopts the following technical scheme:
a self-tightening pneumatic sealing ring comprises an upper sealing ring, a middle reinforcing steel ring and a lower sealing ring which are sequentially stacked and fixedly connected and are all annular, and a circle of sealing ring which is fixedly connected to the inner side wall of an integral ring formed by the upper sealing ring, the middle reinforcing steel ring and the lower sealing ring; the length of the section of the upper sealing ring is smaller than that of the section of the lower sealing ring, and the length of the section of the middle reinforcing steel ring is equal to that of the section of the lower sealing ring;
the upper sealing ring comprises a circle of annular first elastic sealing gasket, a circle of first channel cavity arranged in an annular wall body of the first elastic sealing gasket, two convex outer rings arranged on the outer circumferential surface of the first elastic sealing gasket, a groove arranged on the outer circumferential surface of the first elastic sealing gasket and positioned between the two convex outer rings, and an air inlet channel penetrating through the upper part of the first elastic sealing gasket to the first channel cavity.
The lower sealing ring comprises a second elastic sealing gasket and a circle of second channel cavity arranged in the annular wall body of the second elastic sealing gasket.
The lower surface of the first elastic sealing gasket is provided with two upward grooves at intervals, the upper surface of the second elastic sealing gasket is provided with two downward grooves at intervals, and the upper surface and the lower surface of the middle reinforcing steel ring are provided with raised strips corresponding to the upward grooves and the downward grooves.
The first channel cavity and the second channel cavity are communicated through an air pipe penetrating through the middle reinforcing steel ring.
The middle reinforcing steel ring is provided with at least two V-shaped bulges relative to the upper surface of the outer circumferential part with the longer cross section length of the upper sealing ring.
The upper sealing ring, the middle reinforcing steel ring and the lower sealing ring are integrally formed.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model enhances the strength of the whole sealing ring by arranging the upper sealing ring, the middle reinforcing steel ring and the lower sealing ring, and respectively buckles the upward grooves and the downward grooves of the upper rubber ring and the lower rubber ring on the raised strips on the upper surface and the lower surface of the middle reinforcing steel ring, thereby ensuring the sealing strength, and the V-shaped bulges arranged on the middle reinforcing steel ring ensure the sealing effect; the utility model discloses simple structure, convenient to use, it is sealed effectual.
(2) The utility model discloses a set up the passageway cavity in upper and lower part sealing washer, when making the sealing washer be used for sealing between gas pipeline, the high-pressure gas that passes through in the pipeline enters into the passageway cavity through inlet channel, makes the sealing ring of sealing washer tighter with the pipeline sealing contact surface laminating under gaseous oppression, and sealed effect is better.
Drawings
Fig. 1 is a schematic view of the cross-sectional explosion structure of the present invention.
Fig. 2 is a schematic view of the usage state of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-upper sealing ring, 2-middle reinforcing steel ring, 3-lower sealing ring, 4-sealing ring, 5-first elastic sealing gasket, 6-first channel cavity, 7-outer ring, 8-groove, 9-air inlet channel, 10-second elastic sealing gasket, 11-second channel cavity, 12-upward groove, 13-downward groove, 14-convex strip, 15-air pipe, 16-V-shaped bulge, 17-pipeline and 18-sealing ring.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in the figures, the utility model discloses a self-tightening pneumatic sealing ring, which comprises an upper sealing ring 1, a middle reinforcing steel ring 2 and a lower sealing ring 3 which are all annular and are fixedly connected and integrally formed in sequence, and a circle of sealing ring 4 fixedly connected on the inner side wall of an integral ring formed by the upper sealing ring 1, the middle reinforcing steel ring 2 and the lower sealing ring 3; the section length of the upper sealing ring 1 is smaller than that of the lower sealing ring 3, and the section length of the middle reinforcing steel ring 2 is equal to that of the lower sealing ring 3.
The upper sealing ring 1 comprises a circle of annular first elastic sealing gasket 5, a circle of first channel cavity 6 arranged in the annular wall of the first elastic sealing gasket 5, two convex outer rings 7 arranged on the outer circumferential surface of the first elastic sealing gasket 5, a groove 8 arranged on the outer circumferential surface of the first elastic sealing gasket 5 and positioned between the two convex outer rings 7, and an air inlet channel 9 penetrating through the upper part of the first elastic sealing gasket 5 to the first channel cavity 6. The lower sealing ring 3 comprises a second elastic sealing gasket 10 and a circle of second channel cavities 11 arranged in the annular wall body of the second elastic sealing gasket 10. And, the first channel cavity 6 and the second channel cavity 11 are communicated through an air pipe 15 passing through the middle reinforcing steel ring 2. When the convex outer ring 7 is matched with the groove 8 for use, the two outer rings can form two sealing surfaces when being extruded, so that one sealing ring is equivalent to two sealing rings in use, and the sealing effect can be ensured by one sealing surface under the condition that one sealing surface is damaged.
In order to make the upper sealing ring and the lower sealing ring better closely fit with the middle reinforcing steel ring, two upward grooves 12 are arranged at intervals on the lower surface of the first elastic sealing gasket 5, two downward grooves 13 are arranged at intervals on the upper surface of the second elastic sealing gasket 11, and raised strips 14 corresponding to the upward grooves 12 and the downward grooves 13 are arranged on the upper and lower surfaces of the middle reinforcing steel ring 2.
The upper surface of the outer circumferential part of the middle reinforcing steel ring 4, which is longer than the cross section of the upper sealing ring 1, is provided with at least two V-shaped bulges 16, so that the sealing performance between the sealing ring and a sealed piece is ensured.
During the use, arrange sealing washer 18 in the joint department of two pipelines 17 of connection, sealing ring 4 is hugged closely sealedly with inboard pipeline outer wall, and two convex outer rings 7 form sealedly with the inner wall of outside pipeline, and when gaseous passing through the pipeline, gaseous passageway entering into the passageway cavity through admitting air makes the sealing ring of sealing washer tighter with the laminating of pipeline seal contact surface under gaseous oppression, and sealed effect is better.
Through the design, the utility model discloses a sealing washer intensity is big, utilizes in the pipeline high-pressure gas who passes through to enter into the passageway cavity, makes the sealing ring of sealing washer tighter with the pipeline sealing contact surface laminating under gaseous oppression, simple structure, and convenient to use is sealed effectual. Therefore, the method has high use value and popularization value.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (6)
1. A self-tightening pneumatic sealing ring is characterized by comprising an upper sealing ring (1), a middle reinforcing steel ring (2), a lower sealing ring (3) which are sequentially and fixedly connected in a stacking manner and are annular, and a circle of sealing ring (4) which is fixedly connected to the inner side wall of an integral ring formed by the upper sealing ring (1), the middle reinforcing steel ring (2) and the lower sealing ring (3); the length of the section of the upper sealing ring (1) is smaller than that of the section of the lower sealing ring (3), and the length of the section of the middle reinforcing steel ring (2) is equal to that of the section of the lower sealing ring (3);
the upper portion sealing washer (1) includes annular first elastic sealing pad of a circle (5), sets up in the first passageway cavity of the internal round (6) of first elastic sealing pad (5) annular wall, sets up two convex outer rings (7) on the outer periphery of first elastic sealing pad (5), set up recess (8) that are located between two convex outer rings (7) on the outer periphery of first elastic sealing pad (5) to and link up inlet channel (9) of first elastic sealing pad (5) upper portion to first passageway cavity (6).
2. A self-energizing pneumatic seal according to claim 1, wherein the lower seal (3) comprises a second resilient seal (10) and a ring of second passage cavities (11) opening into the annular wall of the second resilient seal (10).
3. A self-tightening pneumatic sealing ring according to claim 2, wherein the lower surface of the first elastic sealing gasket (5) is provided with two upward grooves (12) at intervals, the upper surface of the second elastic sealing gasket (10) is provided with two downward grooves (13) at intervals, and the upper and lower surfaces of the middle reinforcing steel ring (2) are provided with raised strips (14) corresponding to the upward grooves (12) and the downward grooves (13).
4. A self-tightening pneumatic sealing ring according to claim 3, characterized in that the first passage cavity (6) and the second passage cavity (11) are connected by a gas pipe (15) passing through the central reinforcing steel ring (2).
5. A self-tightening pneumatic sealing ring according to claim 4, characterized in that the middle reinforcing steel ring (2) is provided with at least two V-shaped protrusions (16) with respect to the upper surface of the outer circumferential portion of the upper sealing ring (1) having a longer cross-sectional length.
6. A self-tightening pneumatic sealing ring according to claim 5, characterized in that the upper sealing ring (1), the middle reinforcing steel ring (2) and the lower sealing ring (3) are formed integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374017.4U CN211118104U (en) | 2019-12-25 | 2019-12-25 | Self-tightening pneumatic sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374017.4U CN211118104U (en) | 2019-12-25 | 2019-12-25 | Self-tightening pneumatic sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211118104U true CN211118104U (en) | 2020-07-28 |
Family
ID=71691994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922374017.4U Expired - Fee Related CN211118104U (en) | 2019-12-25 | 2019-12-25 | Self-tightening pneumatic sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211118104U (en) |
-
2019
- 2019-12-25 CN CN201922374017.4U patent/CN211118104U/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: 20200728 Termination date: 20211225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |