CN213145324U

CN213145324U - High temperature resistant elastic sealing ring

Info

Publication number: CN213145324U
Application number: CN202021628829.3U
Authority: CN
Inventors: 王延朝
Original assignee: Ningbo Yinzhou Maihao Sealing Member Co ltd
Current assignee: Ningbo Yinzhou Maihao Sealing Member Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-07
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a high temperature resistance elastic sealing ring relates to the relevant field of sealing washer, and the deformability for solving its self structure of sealing washer among the prior art is relatively weak, leads to the not good enough problem of sealing performance. The outer side of the sealing inner ring is provided with a sealing intermediate ring, the outer side of the sealing intermediate ring is provided with a sealing outer ring, the sealing inner ring, the sealing outer ring and the sealing intermediate ring are integrally formed, the upper end face and the lower end face of the sealing inner ring and the upper end face and the lower end face of the sealing outer ring are respectively located on the same horizontal plane, the sealing outer ring is composed of an upper sealing outer ring and a lower sealing outer ring, the upper sealing outer ring and the lower sealing outer ring are the same in shape, an outer annular groove is formed between the upper sealing outer ring and the lower sealing outer ring, and the width.

Description

High temperature resistant elastic sealing ring

Technical Field

The utility model relates to a sealing washer relevant field specifically is a high temperature resistant elastic sealing circle.

Background

The seal ring is a fitting for sealing action, and mainly includes a V-shaped seal ring, a U-shaped seal ring, an O-shaped seal ring, a rectangular seal ring, a Y-shaped seal ring, a hole YX-shaped seal ring, a YX-shaped hole retainer ring, a shaft YX-shaped seal ring, and the like. The sealing ring is rich in elasticity and resilience, has good sealing performance within a working pressure and a certain temperature range, can automatically improve the sealing performance along with the increase of the pressure, has stable performance, is not easy to swell in a medium, has small thermal shrinkage effect, is not easy to age, has long service life and good wear resistance, can automatically compensate to a certain extent after being worn, is easy to machine and form, can keep precise size, does not corrode a contact surface during sealing action, and does not pollute the medium. The seal ring also maintains suitable mechanical strength including tensile strength, elongation, tear strength, and the like.

The O-shaped sealing ring is generally applied to the market at present, the basic structure of the O-shaped sealing ring is that an inner ring and an outer ring are added with an intermediate ring, and the sealing is carried out by extruding the intermediate ring by an object, but the structure of the O-shaped sealing ring is too simple, the inner ring and the outer ring can move to the unstressed position under the extrusion action, and the deformation action of the O-shaped sealing ring is weaker due to the self limitation of the structure, so that the object cannot be completely sealed; therefore, the market urgently needs to develop a high-temperature resistant elastic sealing ring to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistance elastic sealing ring to the deformability of its self structure of sealing washer that proposes in solving above-mentioned background art is more weak, leads to the not good enough problem of sealing performance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature resistance elastic sealing ring, includes sealed inner circle, the outside of sealed inner circle is provided with sealed intermediate ring, the outside of sealed intermediate ring is provided with sealed outer lane, sealed inner circle, sealed outer lane and sealed intermediate ring integrated into one piece, and the upper and lower terminal surface of sealed inner circle and sealed outer lane is located same horizontal plane respectively, sealed outer lane comprises upper seal outer lane and lower seal outer lane two parts, and upper seal outer lane and lower seal outer lane shape are the same, form outside annular groove between upper seal outer lane and the lower seal outer lane, the width of outside annular groove is the same with the width of sealed outer lane.

Preferably, a concave ring is arranged between the sealing inner ring and the sealing outer ring along the upper end and the lower end of the sealing middle ring.

Preferably, the upper sealing outer ring and the lower sealing outer ring are internally provided with inner vacuum cavities which are annular, the sections of the inner vacuum cavities are L-shaped, and the inner vacuum cavities in the upper sealing outer ring and the lower sealing outer ring are symmetrically arranged.

Preferably, a first inner annular groove is formed in the outer side of the sealing inner ring along the upper end of the sealing middle ring, a second inner annular groove is formed in the inner side of the sealing outer ring along the upper end of the sealing middle ring, and the sections of the first inner annular groove and the second inner annular groove are semicircular and have the same diameter.

Preferably, an inner protruding ring is arranged on the inner side of the sealing inner ring, the inner protruding ring and the sealing inner ring are integrally formed, and the number of the inner protruding rings is multiple.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the sealing outer ring is not a simple annular structure, but is divided into two parts under the connection action of the sealing middle ring, so that the sealing outer ring is divided into an upper sealing outer ring and a lower sealing outer ring, and an outer side annular groove is arranged between the upper sealing outer ring and the lower sealing outer ring, when an object is fixed, the object can extrude the position of the sunken ring of the sealing ring, thereby extruding the sealing middle ring, the sealing middle ring deforms under the extrusion action, the inner side and the outer side expand, and the outer side of the sealing ring is limited by the object, therefore, the sealing middle ring extrudes towards the position of the vacant outer side annular groove, thereby the upper sealing outer ring and the lower sealing outer ring respectively extrude upwards and downwards, compared with the traditional structure that the sealing outer ring directly deforms towards two ends, the self deformation capacity of the sealing ring is enlarged, thereby better sealing the junction, and solving the problem that the deformation capacity of the self structure of the sealing ring is weaker, the problem of poor sealing performance is caused;

2. in the utility model, the inner vacuum cavities are arranged inside the upper sealing outer ring and the lower sealing outer ring which are formed by the sealing outer ring, and the arrangement of the inner vacuum cavities can reduce the heat conduction effect of two connected objects and improve the high temperature resistance of the sealing ring;

3. in the utility model, an inner protruding ring is added on the inner side of the sealing inner ring, the protruding height of the inner protruding ring is very small, the inner protruding ring is attached to an object, when the sealing ring in the middle is extruded due to the connection of two objects, the sealing inner ring can be extruded inwards due to the deformation of the sealing inner ring, so that a plurality of connecting positions are formed with the object, and the sealing capability is improved;

4. the utility model discloses an in, be provided with first inner ring groove and second inner ring groove respectively along the upper and lower both ends of sealed intermediate ring in the sealed inner circle outside and sealed outer lane inboard, because the deformability of sealing washer material during sealing connection, the sealing performance that here is right does not have the influence, nevertheless and between the object relatively reduced the contact surface, increased one section cavity to improve the high temperature resistance ability of this sealing washer.

Drawings

Fig. 1 is a front view of a high temperature resistant elastic sealing ring of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a of the structure of fig. 2 according to the present invention.

In the figure: 1. sealing the inner ring; 2. sealing the outer ring; 3. sealing the intermediate ring; 4. a recessed ring; 5. an inner vacuum cavity; 6. an outer annular groove; 7. an inboard projecting ring; 8. a first inner annular groove; 9. a second inner annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a high-temperature resistant elastic sealing ring comprises a sealing inner ring 1, a sealing intermediate ring 3 is arranged on the outer side of the sealing inner ring 1, a sealing outer ring 2 and a sealing inner ring 1 are arranged on the outer side of the sealing intermediate ring 3, sealed

outer lane

2 and 3 integrated into one piece of sealed intermediate ring, the upper and lower terminal surface of sealed inner circle 1 and sealed outer lane 2 is located same horizontal plane respectively, sealed outer lane 2 comprises upper seal

outer lane

2 and 2 parts of lower seal outer lane, upper seal outer lane 2 is the same with 2 shapes of lower seal outer lane, form outside annular groove 6 between upper seal outer lane 2 and the lower seal outer lane 2, sealed intermediate ring 3 is out of shape under the extrusion, inside and outside both sides position inflation, 3 extrusion to the outside annular groove 6 positions of vacancy of sealed intermediate ring, the width of outside annular groove 6 is the same with the width of sealed outer lane 2, thereby make upper seal outer lane 2 and lower seal outer lane 2 be separated into two parts completely.

Furthermore, the upper end and the lower end of the middle sealing ring 3 between the inner sealing ring 1 and the outer sealing ring 2 are provided with the sunken rings 4, and when the objects are connected, one object extrudes the position to promote the deformation of the sealing ring to seal.

Further, the inner vacuum cavities 5 are arranged inside the upper sealing outer ring 2 and the lower sealing outer ring 2, the inner vacuum cavities 5 are annular, the cross section of each inner vacuum cavity 5 is L-shaped and is matched with the external structural shape, the volume of each inner vacuum cavity 5 is increased under the effect of not influencing the sealing performance as much as possible, the inner vacuum cavities 5 inside the upper sealing outer ring 2 and the lower sealing outer ring 2 are symmetrically arranged, and the sealing device can be directly used no matter the forward and reverse directions are adopted during use.

Further, the outer side of the sealing inner ring 1 is provided with a first inner annular groove 8 along the upper end of the sealing middle ring 3, the inner side of the sealing outer ring 2 is provided with a second inner annular groove 9 along the upper end of the sealing middle ring 3, the sealing performance of the sealing outer ring is not affected due to the deformation capacity of the material of the sealing ring during sealing connection, but the contact surface between the sealing outer ring and an object is relatively reduced, a section of cavity is increased, so that the high-temperature resistance is improved, and the cross sections of the first inner annular groove 8 and the second inner annular groove 9 are semicircular with the same diameter.

Further, the inner side of the sealing inner ring 1 is provided with a plurality of inner protruding rings 7, so that the connection positions with objects are not influenced, and the connection effect of the positions can be improved, wherein the inner protruding rings 7 and the sealing inner ring 1 are integrally formed, and the inner protruding rings 7 are provided with a plurality of inner protruding rings.

The working principle is as follows: this sealing washer is the cover on an object A, when using, another object B will be connected with object A, can extrude sunken ring 4 positions of 3 one ends of sealed intermediate ring during connection, thereby extrude sealed intermediate ring 3, sealed intermediate ring 3 deformation under the extrusion, inside and outside both sides position inflation, and the outside of this sealing washer is restricted by object A's position, consequently, sealed intermediate ring 3 extrudees to the outside annular groove 6 position of vacancy, thereby make the last sealed outer lane 2 on the sealed outer lane 2 and the lower sealed outer lane 2 upwards and extrude respectively downwards, go up sealed outer lane 2 and the 2 deformation to both ends of lower sealed outer lane, thereby better seal the junction. When equipment work, object A and object B can receive the high temperature effect, go up sealed outer lane 2 and the interior vacuum cavity 5 reduction heat conduction effect in the sealed outer lane 2 down, including sealed inner circle 1 and sealed outer lane 2 and object B between have annular groove 8 in the first and the second and annular groove 9, have certain high temperature resistance ability, under equipment high temperature work, this sealing washer can be permanent keeps sealing performance.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high temperature resistance elastic seal circle, includes sealed inner circle (1), its characterized in that: the outer side of the sealing inner ring (1) is provided with a sealing intermediate ring (3), the outer side of the sealing intermediate ring (3) is provided with a sealing outer ring (2), the sealing inner ring (1), the sealing outer ring (2) and the sealing intermediate ring (3) are integrally formed, the upper end face and the lower end face of the sealing inner ring (1) and the sealing outer ring (2) are respectively located on the same horizontal plane, the sealing outer ring (2) is composed of an upper sealing outer ring (2) and a lower sealing outer ring (2), the upper sealing outer ring (2) and the lower sealing outer ring (2) are identical in shape, an outer side annular groove (6) is formed between the upper sealing outer ring (2) and the lower sealing outer ring (2), and the width of the outer side annular groove (6) is identical to the width of the sealing outer.

2. The high temperature resistant elastomeric seal ring of claim 1, wherein: and recessed rings (4) are arranged between the sealing inner ring (1) and the sealing outer ring (2) along the upper end and the lower end of the sealing middle ring (3).

3. The high temperature resistant elastomeric seal ring of claim 1, wherein: the inner vacuum cavities (5) are arranged inside the upper sealing outer ring (2) and the lower sealing outer ring (2), the inner vacuum cavities (5) are annular, the cross section of each inner vacuum cavity (5) is L-shaped, and the inner vacuum cavities (5) inside the upper sealing outer ring (2) and the lower sealing outer ring (2) are symmetrically arranged.

4. The high temperature resistant elastomeric seal ring of claim 1, wherein: the sealing structure is characterized in that a first inner annular groove (8) is formed in the outer side of the sealing inner ring (1) along the upper end of the sealing middle ring (3), a second inner annular groove (9) is formed in the inner side of the sealing outer ring (2) along the upper end of the sealing middle ring (3), and the sections of the first inner annular groove (8) and the second inner annular groove (9) are semicircular and have the same diameter.

5. The high temperature resistant elastomeric seal ring of claim 1, wherein: the inner side of the sealing inner ring (1) is provided with a plurality of inner side protruding rings (7), the inner side protruding rings (7) and the sealing inner ring (1) are integrally formed, and the number of the inner side protruding rings (7) is large.