CN218000389U - Low-leakage graphite sealing ring - Google Patents

Abstract

The utility model relates to the field of graphite sealing rings, in particular to a low-leakage graphite sealing ring, which comprises a graphite ring and a steel wire ring; the graphite ring is fixedly arranged on the outer side of the steel wire ring; the steel wire ring includes ring portion, first stopper and second stopper, the network structure that ring portion is crossed by a plurality of iron wires and is constituteed, a plurality of parallel arrangement's spacing groove has been seted up to one side that ring portion was kept away from to first stopper, the spacing post that a plurality of parallel arrangement were seted up to the one end that ring portion was kept away from to the second stopper, spacing post and spacing groove cooperation set up, when the installation, insert spacing post in the spacing groove, and down press it, first stopper and second stopper at this moment closely laminate, when needs change the sealing ring, only need upwards promote the second stopper from the below, release the spacing post from the spacing groove, can take off the sealing ring this moment. The problem of the change efficiency when this application is effectual improved the sealing ring and damages.

Description

Low-leakage graphite sealing ring

Technical Field

The utility model relates to a graphite sealing ring field specifically relates to a low graphite sealing ring that leaks.

Background

The sealing ring is an annular sealing element with a notch, and is abutted against the inner hole wall of the static element by the elasticity of the pressed-together sealing ring to play a sealing role, the corners of the sealing ring are easy to collapse due to long-term extrusion or impact when the conventional graphite sealing ring is used, the service life of the graphite sealing ring is seriously shortened, and meanwhile, certain economic loss is brought to customers.

Chinese patent cn202122529601.X discloses a flexible graphite sealing ring with corner protection, including the graphite sealing ring, the left side fixedly connected with external corner protective housing of graphite sealing ring, the right side fixedly connected with internal corner protective housing of graphite sealing ring, the one end of the inboard fixedly connected with spring of external corner protective housing, the other end fixedly connected with push pedal of spring, the lower fixed surface of push pedal is connected with the blotter, left wall fixedly connected with gasbag one in the external corner protective housing, just gasbag one movable mounting is in the below of push pedal, the interior roof fixedly connected with gasbag two of external corner protective housing, just two movable mounting of gasbag are on the right side of push pedal.

Above-mentioned scheme can protect the life of sealing ring self, but common sealing ring belongs to the sealing member when interference fit, has good elasticity because of sealing ring self to fill the clearance between the connecting piece, the sealing ring is corroded or high temperature melts by liquid or gas that internal connection department flowed through by friction repeatedly between the connecting piece, probably leads to the sealing performance of sealing member to reduce, even damage, needs often to change.

SUMMERY OF THE UTILITY MODEL

To above-mentioned problem, provide a low graphite sealing ring that leaks, through when the installation, insert spacing post in the spacing groove to down press it, first stopper and second stopper at this moment closely laminate, solved the problem of how to improve the change efficiency when the sealing ring damages.

For solving the prior art problem, the utility model discloses a technical scheme be:

a low-leakage graphite sealing ring comprises a graphite ring and a steel wire ring; the graphite ring is fixedly arranged on the outer side of the steel wire ring; the steel wire ring includes ring portion, first stopper and second stopper, and the network structure that ring portion comprises a plurality of iron wires alternately, and first stopper is fixed to be set up on a minor lip of ring portion, and the spacing groove of a plurality of parallel arrangement is seted up to one side that ring portion was kept away from to first stopper, and the second stopper is fixed on another minor lip of ring portion, and the spacing post of a plurality of parallel arrangement is seted up to the one end that ring portion was kept away from to the second stopper, and spacing post and spacing groove cooperation set up.

Preferably, the graphite ring comprises an inner ring and an outer protruding ring, and the outer protruding ring is fixedly arranged on the two long edges outside the inner ring.

Preferably, the graphite ring further comprises a plurality of filling rings, the plurality of filling rings are uniformly arranged between the two outer protruding rings, and the outer protruding rings and the filling rings are arranged in parallel.

Preferably, the low-leakage graphite sealing ring further comprises a PTFE coating, and the PTFE coating wraps the outer surfaces of the graphite ring and the steel wire ring.

Has the advantages that:

1. this application is through when the installation, insert spacing post in the spacing groove, and down press it, first stopper and second stopper at this moment closely laminate, because of outer pipeline, sealing ring and interior pipeline constitute interference fit usually, so outer pipeline can extrude the space department of steel wire ring with the graphite ring, thereby fill the space between interior pipeline and outer pipeline, guarantee the leakproofness of device, when needs change sealing ring, only need upwards promote the second stopper from the below, release spacing post from the spacing groove, can take off the sealing ring this moment, and more renew the sealing ring, this application is effectual to have improved the change efficiency when the sealing ring damages, the leakproofness between interior outer pipeline has been guaranteed.

2. This application sets up outer protruding ring through the outside at the inner ring, sets up the packing ring between two outer protruding rings, when interior outer pipeline extrudees, can make outer protruding ring and packing ring with the better packing in gap, further assurance the leakproofness in interior outer pipeline.

3. This application is through all steeping graphite ring and steel wire ring in the PTFE material to make the PTFE material cover at the surface of graphite ring and steel wire ring, form the PTFE coating, thereby the corrosion resistance and the high temperature resistance performance of reinforcing product.

Drawings

FIG. 1 is a top view of the present application;

FIG. 2 isbase:Sub>A schematic sectional view taken along the line A-A of FIG. 1 of the present application;

FIG. 3 is a perspective view of the present application;

FIG. 4 is a perspective view of a wire loop of the present application;

fig. 5 is a perspective exploded view of the wire loop of the present application.

The reference numbers in the figures are:

1-a graphite ring; 1 a-an inner ring; 1 b-an outer protruding ring; 1 c-a filled ring;

2-a ring of steel wire; 2 a-ring portion; 2 b-a first stopper; 2b 1-a limiting groove; 2 c-a second limiting block; 2c 1-a spacing post;

3-coating of PTFE.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1-5, a low leakage graphite seal ring includes a graphite ring 1 and a steel wire ring 2; the graphite ring 1 is fixedly arranged on the outer side of the steel wire ring 2; steel wire ring 2 includes ring portion 2a, first stopper 2b and second stopper 2c, ring portion 2a is by the alternately network structure who constitutes of a plurality of iron wires, first stopper 2b is fixed to be set up on a stub of ring portion 2a, a plurality of parallel arrangement's spacing groove 2b1 is seted up to one side that ring portion 2a was kept away from to first stopper 2b, second stopper 2c is fixed on another stub of ring portion 2a, a plurality of parallel arrangement's spacing post 2c1 is seted up to one end that ring portion 2a was kept away from to second stopper 2c, spacing post 2c1 sets up with spacing groove 2b1 cooperation.

This application is through fixed first stopper 2b and the second stopper 2c that sets up respectively at ring portion 2 a's both ends, when needs are installed, insert spacing post 2c1 in spacing groove 2b1, and down press it, first stopper 2b and the second stopper 2c at this moment closely laminate, graphite ring 1 in the 2 outsides of steel wire ring also closely laminates, need sealed outer pipeline again in the outside installation, because of usually the sealing ring all belongs to interference fit, so outer pipeline can be with graphite ring 1 inside extrusion, thereby fill steel wire ring 2's gap department, accomplish better leakproofness with the assurance, in the course of the work, when sealing performance reduces and need to change the sealing ring, only need upwards promote second stopper 2c from the below, release spacing post 2c1 from spacing groove 2b1, can take off the sealing ring this moment, and the sealing ring that more renews, thereby guarantee flange pipe seal low leakage requirement stable for a long time under complicated operating mode.

Referring to fig. 2, the graphite ring 1 includes an inner ring 1a and an outer protruding ring 1b, and the outer protruding ring 1b is fixedly disposed on two long edges outside the inner ring 1 a.

According to the pipeline sealing device, the outer protruding ring 1b is arranged on the outer side of the inner ring 1a, when the outer pipeline is clamped inwards, due to the fact that the outer pipeline is in interference fit usually, the outer protruding ring 1b is squeezed inwards by the outer pipeline, and therefore gaps in the outer pipeline and the inner pipeline are further filled, and sealing performance of the pipeline sealing device is enhanced.

Referring to fig. 2, the graphite ring 1 further includes a plurality of filling rings 1c, the plurality of filling rings 1c are uniformly arranged between the two outer protruding rings 1b, and the outer protruding rings 1b and the filling rings 1c are arranged in parallel.

This application is through setting up between two outer rings 1b and filling ring 1c, and when the sealing ring was used for between the upper and lower pipeline sealed, the pipeline at both ends can be with outer ring 1b to middle extrusion suddenly, and two outer rings 1b that suddenly can be close to the centre this moment to extrude packing ring 1c department, packing ring 1c sets up between two outer rings 1b suddenly for fill the place that two outer rings 1b can't contact.

Referring to fig. 2, the low-leakage graphite sealing ring further comprises a PTFE coating 3, and the PTFE coating 3 is wrapped on the outer surfaces of the graphite ring 1 and the steel wire ring 2.

This application is through all impregnating graphite ring 1 and steel wire ring 2 in the PTFE material to make the PTFE material cover at the surface of graphite ring 1 and steel wire ring 2, form PTFE coating 3, thereby the corrosion resistance and the high temperature resistance performance of reinforcing product.

The above embodiments only represent one or several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (4)

1. The low-leakage graphite sealing ring is characterized by comprising a graphite ring (1) and a steel wire ring (2);

the graphite ring (1) is fixedly arranged on the outer side of the steel wire ring (2);

steel wire ring (2) are including ring portion (2 a), first stopper (2 b) and second stopper (2 c), ring portion (2 a) are by the network structure of a plurality of iron wire intersection constitutions, first stopper (2 b) are fixed to be set up on a short side of ring portion (2 a), a plurality of parallel arrangement's spacing groove (2 b 1) are seted up to one side that ring portion (2 a) were kept away from in first stopper (2 b), another short side at ring portion (2 a) is fixed in second stopper (2 c), spacing post (2 c 1) of a plurality of parallel arrangement are seted up to the one end that ring portion (2 a) were kept away from in second stopper (2 c), spacing post (2 c 1) and spacing groove (2 b 1) cooperation set up.

2. A low-leakage graphite sealing ring according to claim 1, wherein the graphite ring (1) comprises an inner ring (1 a) and an outer protruding ring (1 b), and the outer protruding ring (1 b) is fixedly arranged on two long edges of the outer side of the inner ring (1 a).

3. A low-leakage graphite sealing ring according to claim 2, wherein the graphite ring (1) further comprises a plurality of filling rings (1 c), the plurality of filling rings (1 c) are uniformly arranged between the two outer protruding rings (1 b), and the outer protruding rings (1 b) and the filling rings (1 c) are arranged in parallel.

4. A low-leakage graphite seal ring according to claim 1, further comprising a PTFE coating (3), wherein the PTFE coating (3) is wrapped on the outer surfaces of the graphite ring (1) and the steel wire ring (2).

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