CN212839371U

CN212839371U - Pressure-resistant sealing ring

Info

Publication number: CN212839371U
Application number: CN202021356839.6U
Authority: CN
Inventors: 赵玲方
Original assignee: Zhejiang Faguang Rubber Seal Parts Co ltd
Current assignee: Zhejiang Faguang Rubber Seal Parts Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-30
Anticipated expiration: 2030-07-10

Abstract

The utility model provides a pressure-resistant sealing ring belongs to mechanical technical field. It has solved the current not good problem of sealing washer life-span. The pressure-resistant sealing ring comprises a circular rubber body, wherein two convex rings are integrally formed on the inner side wall of the rubber body and are coaxially arranged with the rubber body, the two convex rings are distributed at intervals along the axial direction of the rubber body, the axial section of each convex ring is triangular, and the thickness of each convex ring is gradually reduced from the outside of the rubber body to the inside of the rubber body; constitute between two bulge loops and be annular cell body, the cell body comprises both sides wall and the diapire of locating between the both sides wall, and the adjacent both sides respectively are cell body both sides wall on two bulge loops, and integrated into one piece has the projection on the cell body diapire, and the projection axis is parallel with the rubber body axis, and the projection has a plurality ofly and along the circumference interval equipartition of the rubber body, and the both ends of every projection are equallyd divide and are extended to respectively to be connected with two bulge loops. The pressure-resistant sealing ring has long service life.

Description

Pressure-resistant sealing ring

Technical Field

The utility model belongs to the technical field of machinery, a sealing washer, especially a pressure seal circle is related to.

Background

The application of the sealing element is very extensive, and the sealing element is needed in any place needing sealing, and the existing sealing element is generally simpler in structure and is generally an annular rubber ring, but has some problems: the common annular rubber ring is realized by completely and closely contacting the inner wall of the common annular rubber ring with a sealing part in a sealing way, and the contact part of the annular rubber ring is subjected to larger pretightening force by the mode, so that the abrasion of the annular rubber ring is aggravated, and the service life is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a withstand voltage sealing washer of longe-lived.

The purpose of the utility model can be realized by the following technical proposal: a pressure-resistant sealing ring comprises a circular rubber body and is characterized in that two convex rings are integrally formed on the inner side wall of the rubber body and are coaxially arranged with the rubber body, the two convex rings are distributed at intervals along the axial direction of the rubber body, the axial section of each convex ring is triangular, and the thickness of each convex ring is gradually reduced from the outside of the rubber body to the inside of the rubber body; constitute between two bulge loops and be annular cell body, the cell body comprises both sides wall and the diapire of locating between the both sides wall, and the adjacent both sides respectively are cell body both sides wall on two bulge loops, and integrated into one piece has the projection on the cell body diapire, and the projection axis is parallel with the rubber body axis, and the projection has a plurality ofly and along the circumference interval equipartition of the rubber body, and the both ends of every projection are equallyd divide and are extended to respectively to be connected with two bulge loops.

Set up the bulge loop that axial length is less than the rubber body in the internal side of rubber to under the prerequisite of ensureing sealed effect, reduce the pretightning force that the rubber body received through reducing area of contact, thereby reduce the rubber body wearing and tearing, come increase of service life.

And two ends of the convex column extend to the two convex rings respectively, so that the convex column is used for supporting the convex rings and connecting the two convex rings to limit deformation quantity, the strength and the pressure resistance of the convex rings are enhanced simultaneously, and the service life is prolonged.

In the pressure-resistant sealing ring, the cross section of the convex column is arc-shaped.

In the pressure-resistant sealing ring, the outer side wall of the rubber body is provided with an annular positioning groove, the positioning groove and the rubber body are coaxially arranged, and the axial section of the positioning groove is concave. The constant head tank is used for the rubber body to be connected with other parts, the sealing washer installation of being convenient for.

In foretell withstand voltage sealing washer, the both ends face of the rubber body on all have and be banding lug, and lug length radially extends along the rubber body, the lug that is on same terminal surface has a plurality ofly and follows the circumference interval equipartition of the rubber body, all is equipped with the arc strip between the two adjacent lugs, arc strip and the coaxial setting of rubber body, and the both ends of arc strip extend respectively to and are connected with two lugs that correspond, lug, arc strip and the three formula structure as an organic whole of the rubber body. The two ends of the rubber body are respectively provided with a circle of convex blocks, and the two adjacent convex blocks are connected into a whole through the arc-shaped strip, so that the self strength of the rubber body can be effectively enhanced, the pressure resistance can be improved, and the service life can be prolonged.

In the pressure-resistant sealing ring, one end of the projection extends to the outer side wall of the rubber body, and the other end of the projection extends to the convex ring.

In the pressure-resistant sealing ring, the projection is in a frustum shape, and the width of the projection gradually decreases from the outside of the rubber body to the inside of the rubber body.

Compared with the prior art, the pressure-resistant sealing ring has the following advantages:

1. set up the bulge loop that axial length is less than the rubber body in the internal side of rubber to under the prerequisite of ensureing sealed effect, reduce the pretightning force that the rubber body received through reducing area of contact, thereby reduce the rubber body wearing and tearing, come increase of service life.

2. The two ends of the convex column extend to the two convex rings respectively, so that the convex rings are used for supporting the convex rings, and the two convex rings are connected to limit deformation quantity, so that the self strength and the pressure resistance of the convex rings are enhanced simultaneously, and the service life is prolonged.

3. The two ends of the rubber body are respectively provided with a circle of convex blocks, and the two adjacent convex blocks are connected into a whole through the arc-shaped strip, so that the self strength of the rubber body can be effectively enhanced, the pressure resistance can be improved, and the service life can be prolonged.

Drawings

Fig. 1 is a schematic perspective view of a pressure-resistant seal ring.

Fig. 2 is a schematic sectional view of the pressure-resistant seal ring.

In the figure, 1, a rubber body; 1a, a convex ring; 1b, a trough body; 1c, a convex column; 1d, positioning a groove; 1e, a bump; 1f, arc-shaped strips.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, the pressure-resistant sealing ring includes a ring-shaped rubber body 1, a protruding ring 1a is integrally formed on an inner side wall of the rubber body 1, and the protruding ring 1a and the rubber body 1 are coaxially arranged. The two convex rings 1a are distributed at intervals along the axial direction of the rubber body 1, at the moment, an annular groove body 1b is formed between the two convex rings 1a, the groove body 1b is formed by two side walls and a bottom wall arranged between the two side walls, and the two adjacent sides of the two convex rings 1a are respectively two side walls of the groove body 1 b.

Specifically, the axial cross section of the protruding ring 1a is triangular, and the thickness of the protruding ring 1a gradually decreases from the outside of the rubber body 1 toward the inside of the rubber body 1. Set up the bulge loop 1a that axial length is less than the rubber body 1 in rubber body 1 inboard, under the prerequisite of ensureing sealed effect to reduce the pretightning force that the rubber body 1 received through reducing area of contact, thereby reduce rubber body 1 wearing and tearing, come increase of service life. The bottom wall of the groove body 1b is integrally formed with a convex column 1c, and the axis of the convex column 1c is parallel to the axis of the rubber body 1. The convex columns 1c are multiple and evenly distributed at intervals along the circumferential direction of the rubber body 1, and two ends of each convex column 1c respectively extend to be connected with the two convex rings 1 a. In the actual product, there are 10 convex columns 1c, and the cross section of the convex column 1c is preferably circular arc. The two ends of the convex column 1c extend to the two convex rings 1a respectively, so that the convex rings 1a are supported, and the two convex rings 1a are connected to limit deformation quantity, so that the strength and the pressure resistance of the convex rings 1a are enhanced simultaneously, and the service life is prolonged.

As shown in figure 1, the outer side wall of the rubber body 1 is provided with an annular positioning groove 1d, the positioning groove 1d and the rubber body 1 are coaxially arranged, and the axial section of the positioning groove 1d is concave. The positioning groove 1d is used for connecting the rubber body 1 with other parts, so that the installation of the sealing ring is facilitated. Both end faces of the rubber body 1 are provided with strip-shaped convex blocks 1e, and the length of the convex blocks 1e extends along the radial direction of the rubber body 1. Lug 1e that is in on same terminal surface has a plurality ofly and along the circumference interval equipartition of the rubber body 1, all is equipped with arc strip 1f between two adjacent lugs 1e, and arc strip 1f and the coaxial setting of the rubber body 1, and the both ends of arc strip 1f extend respectively to be connected with two lugs 1e that correspond, lug 1e, arc strip 1f and the 1 three formula structure as an organic whole of rubber body. The two end faces of the rubber body 1 are uniformly provided with a circle of convex blocks 1e, and the two adjacent convex blocks 1e are connected into a whole through the arc-shaped strip 1f, so that the self strength of the rubber body 1 can be effectively enhanced, the pressure resistance is improved, and the service life is prolonged.

Further, one end of the protrusion 1e extends to the outer sidewall of the rubber body 1, and the other end of the protrusion 1e extends to the protruding ring 1 a. The projection 1e is in a frustum shape, and the width of the projection 1e gradually decreases from the outside of the rubber body 1 to the inside of the rubber body 1.

In the present embodiment, the number of the projections 1e on the same end face is preferably 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A pressure-resistant sealing ring comprises a circular rubber body (1), and is characterized in that two convex rings (1a) are integrally formed on the inner side wall of the rubber body (1), the convex rings (1a) and the rubber body (1) are coaxially arranged, the convex rings (1a) are distributed at intervals along the axial direction of the rubber body (1), the axial section of each convex ring (1a) is triangular, and the thickness of each convex ring (1a) is gradually reduced from the outside of the rubber body (1) to the inside of the rubber body (1); constitute between two bulge loops (1a) and be annular cell body (1b), cell body (1b) comprises both sides wall and the diapire of locating between the both sides wall, and two bulge loops (1a) go up adjacent both sides and be cell body (1b) both sides wall respectively, integrated into one piece has projection (1c) on cell body (1b) the diapire, projection (1c) axis is parallel with rubber body (1) axis, projection (1c) have a plurality ofly and along the circumference interval equipartition of rubber body (1), and the both ends of every projection (1c) are equallyd divide and are extended to respectively to be connected with two bulge loops (1 a).

2. A pressure-resistant seal ring as claimed in claim 1, characterized in that the cross-section of the said stud (1c) is circular arc-shaped.

3. The pressure-resistant sealing ring as claimed in claim 1 or 2, wherein the outer side wall of the rubber body (1) is provided with a ring-shaped positioning groove (1d), the positioning groove (1d) and the rubber body (1) are coaxially arranged, and the axial section of the positioning groove (1d) is concave.

4. The pressure-resistant sealing ring according to claim 1 or 2, wherein the two end faces of the rubber body (1) are respectively provided with a strip-shaped convex block (1e), the length of the convex block (1e) extends along the radial direction of the rubber body (1), the convex blocks (1e) on the same end face are uniformly distributed at intervals along the circumferential direction of the rubber body (1), the two adjacent convex blocks (1e) are respectively provided with an arc-shaped strip (1f), the arc-shaped strips (1f) and the rubber body (1) are coaxially arranged, the two ends of each arc-shaped strip (1f) respectively extend to be connected with the two corresponding convex blocks (1e), and the convex blocks (1e), the arc-shaped strips (1f) and the rubber body (1) are of an integrated structure.

5. The pressure-resistant sealing ring as claimed in claim 4, wherein one end of the projection (1e) extends to the outer side wall of the rubber body (1), and the other end of the projection (1e) extends to the raised ring (1 a).

6. The pressure-resistant seal ring according to claim 5, wherein the projection (1e) has a frustum shape, and the width of the projection (1e) is gradually reduced from the outside of the rubber body (1) to the inside of the rubber body (1).