CN215334461U - Sealing ring and equipment - Google Patents

Abstract

The application provides a sealing ring and equipment, the sealing ring comprises a main body ring and an elastic piece, the main body ring comprises an outer ring, an inner ring and a connecting ring, the outer ring is sleeved outside the inner ring and is arranged opposite to the inner ring at intervals, the inner wall of the connecting ring is connected with the inner ring, and the outer wall of the connecting ring is connected with the outer ring so as to form an annular groove between the inner ring and the outer ring; the elastic piece is arranged in the annular groove and is respectively abutted against the outer ring and the inner ring so as to generate outward expanding thrust on the outer ring and inward contracting thrust on the inner ring. The sealing ring can resist high pressure and can improve the pressure maintaining performance during high pressure.

Description

Sealing ring and equipment

Technical Field

The application relates to the technical field of sealing assemblies, in particular to a sealing ring and equipment.

Background

Along with the development of the manufacturing industry in China, more and more high-pressure and high-temperature equipment is put into use, and a plurality of high-pressure equipment is introduced in the pharmaceutical industry for research, development and production of medicines. The sealing ring used in the existing high-pressure equipment has poor pressure maintaining performance during high pressure, and after the sealing ring is used for a period of time, the sealing effect is gradually reduced due to high-pressure deformation, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a sealing washer and equipment, this sealing washer is high pressure resistant, pressurize performance when can improving high pressure.

The application provides a sealing ring, which comprises a main body ring and an elastic piece, wherein the main body ring comprises an outer ring, an inner ring and a connecting ring, the outer ring is sleeved outside the inner ring and is arranged opposite to the inner ring at intervals, the inner wall of the connecting ring is connected with the inner ring, and the outer wall of the connecting ring is connected with the outer ring so as to form an annular groove between the inner ring and the outer ring; the elastic piece is arranged in the annular groove and is respectively abutted against the outer ring and the inner ring so as to generate outward expanding thrust on the outer ring and inward contracting thrust on the inner ring.

In the implementation mode, when the sealing ring is used, the main body of the sealing ring is sleeved on the inner sealing object, the inner ring of the main body ring is attached to the inner sealing object, the outer ring is attached to the outer sealing object, at the moment, the outer sealing object and the inner sealing object extrude the main body ring, the elastic piece in the annular groove deforms in an extruding mode, elastic thrust is generated, the outer ring is pushed to expand outwards, the inner ring is pushed to expand inwards, the outer ring is tightly attached to the outer sealing object, and the inner ring is tightly attached to the inner sealing object, so that the sealing effect of the sealing ring is improved. When the sealing ring is in a high-pressure environment, a high-pressure medium enters the annular groove and contacts the elastic piece to transmit pressure to the elastic piece, the elastic piece further deforms under the high-pressure action of the high-pressure medium to generate tension, the acting force between the outer ring and the outer sealing object and the acting force between the inner ring and the inner sealing object are further improved, and the further sealing effect of the sealing ring is improved. Meanwhile, the elastic piece also plays a role of supporting the framework, and the deformation of the main body ring due to overlarge pressure can be effectively avoided. It can be seen that the deformation of sealing washer in high-pressure environment in this application can further improve sealed effect, and then can improve the pressurize performance in the high-pressure environment, and simple structure is applicable to the commercial mass production and uses.

In a possible implementation manner, the elastic member is an annular elastic member, and an axis of the annular elastic member coincides with an axis of the annular groove.

In this implementation, the annular elastic member is clamped in the annular groove and abuts against the inner ring and the outer ring to push the inner ring to contract inwards and push the outer ring to expand outwards, so that the sealing effect of the sealing ring is improved. The annular elastic part adopting the integral structure is clamped in the annular groove, the structure is simple, and the assembly is convenient.

In a possible implementation manner, the number of the elastic members is multiple, and the multiple elastic members are distributed in the annular groove in a circumferential array.

In this implementation, a plurality of mutually independent circumferential arrays of elastomeric members are disposed within the annular groove to provide a radially inwardly contracting force to the inner ring and a radially outwardly expanding force to the outer ring. The plurality of elastic members are independent of each other and provide sufficient elastic force at different circumferential positions within the annular groove.

In a possible implementation manner, the elastic member includes a first acting arm, a second acting arm and a tension arm, the first acting arm abuts against an inner wall of the outer ring, and the second acting arm abuts against an outer wall of the inner ring; the two ends of the tension arm are respectively connected with the first acting arm and the second acting arm and used for generating elasticity when the first acting arm and the second acting arm are stressed and extruded.

In this implementation, the tension arm is arranged between the first acting arm and the second acting arm, when the first acting arm and the second acting arm are squeezed and approach each other, the tension arm resists the deformation of the first acting arm and the second acting arm in the middle, so that the first acting arm generates the force resisting the outer ring, the second acting arm generates the force resisting the inner ring, the outer ring is expanded outwards to be tightly attached to the outer sealing object, and the inner ring is contracted inwards to be tightly attached to the inner sealing object.

In one possible implementation manner, the elastic member is a U-shaped elastic sheet.

In the implementation mode, the plurality of U-shaped elastic sheets are arranged in the annular groove in a circumferential array mode, the main body ring is extruded in the radial direction to be tightly attached to the inner sealing object and the outer sealing object, the structure is simple and stable, and the U-shaped elastic sheets are not easy to break or lose efficacy.

In a possible implementation manner, the connecting ring is connected with the middle portions of the outer ring and the inner ring to form two annular grooves respectively located on two sides of the connecting ring between the inner ring and the outer ring.

In this implementation, the inner wall of the connecting ring is connected with the middle part of the inner ring, the outer wall is connected with the middle part of the outer ring, and then two back-to-back annular grooves are formed between the inner ring and the outer ring, the two annular grooves are respectively located on two sides of the connecting ring, and the notches are respectively towards two sides of the main body ring. Two annular grooves are formed in the main body ring, and an elastic piece is arranged in each annular groove, so that the sealing effect of the sealing ring can be further improved.

In a second aspect, the present application also provides an apparatus comprising a seal ring as described in any of the embodiments of the first aspect.

The equipment adopting the sealing ring can realize good sealing performance at high temperature and high pressure.

In a possible implementation manner, the sealing device comprises a cylinder body and a plunger rod, wherein the cylinder body comprises an accommodating cavity and a mounting hole, the mounting hole is communicated with the accommodating cavity, the plunger rod is movably arranged in the mounting hole, and the sealing ring is sleeved between the plunger rod and the mounting hole to seal the plunger rod and the mounting hole.

In the implementation mode, the plunger rod does reciprocating motion in the mounting hole, the medium is pushed into or pushed out of the accommodating cavity, and the sealing ring seals the plunger rod and the mounting hole to prevent the medium from leaking out through the mounting hole.

In one possible embodiment, the groove opening of the annular groove of the sealing ring is arranged toward the receiving space.

In this implementation, the notch orientation of the ring channel with the sealing washer holds the chamber setting, when the medium that holds the intracavity is in high pressure state, high-pressure medium passes through the notch and gets into in the ring channel, contact with the elastic component, to elastic component transmission pressure, the elastic component further warp and produces tension under the high pressure of high-pressure medium effect, further improve between outer lane and the external seal object and the effort of inner circle and internal seal object, improve the sealed effect of sealing washer, it has better pressurize performance to see above-mentioned equipment in high-pressure environment.

In a possible implementation manner, the above apparatus further includes a mounting member, disposed in the mounting hole, for guiding the sealing ring into the mounting hole to fix the sealing ring after the sealing ring is installed in the mounting hole.

In the implementation mode, the installation part is arranged and is guided into the installation hole for fixing after the sealing ring is installed in the installation hole, so that the assembly of the sealing ring can be simplified, and the installation stability of the sealing ring is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a structural diagram of a seal ring according to an embodiment of the present disclosure;

FIG. 2 is a block diagram of the seal ring shown in FIG. 1 from another perspective;

FIG. 3 is a block diagram of an elastic member according to an embodiment of the present disclosure;

FIG. 4 is a block diagram of a circumferential array of a plurality of elastomeric elements according to an embodiment of the present disclosure;

fig. 5 is a block diagram of an apparatus according to an embodiment of the present disclosure.

Icon: 100-a body ring; 110-outer ring; 120-inner ring; 130-a connecting ring; 140-an annular groove; 200-an elastic member; 210-a first action arm; 220-a second action arm; 230-a tension arm; 300-cylinder body; 400-a plunger rod; 310-a containment chamber; 320-mounting holes; 500-a mount; 600-sealing ring.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

The sealing ring is generally disposed in an annular space formed by the outer sealing object and the inner sealing object, and is tightly attached to the outer sealing object and the inner sealing object to seal the outer sealing object and the inner sealing object, and the inner sealing object is disposed inside the outer sealing object.

In a first aspect, a seal ring 600 is provided in an embodiment of the present application, please refer to fig. 1 and fig. 2, where fig. 1 is a structural diagram of a seal ring 600 provided in an embodiment of the present application; fig. 2 is a block diagram of another perspective of the seal ring 600 shown in fig. 1. The seal ring 600 comprises a main body ring 100 and an elastic element 200, wherein the main body ring 100 comprises an outer ring 110, an inner ring 120 and a connecting ring 130, the outer ring 110 is sleeved outside the inner ring 120 and is arranged opposite to the inner ring 120 at intervals, the inner wall of the connecting ring 130 is connected with the inner ring 120, and the outer wall of the connecting ring 130 is connected with the outer ring 110 so as to form an annular groove 140 between the inner ring 120 and the outer ring 110; the elastic member 200 is disposed in the annular groove 140, and the elastic member 200 abuts against the outer ring 110 and the inner ring 120, respectively, to generate an outward expanding thrust on the outer ring 110 and an inward contracting thrust on the inner ring 120.

In this implementation manner, when the sealing ring 600 is used, the main body ring 100 of the sealing ring 600 is sleeved on the inner sealing object, the inner ring 120 of the main body ring 100 is attached to the inner sealing object, the outer ring 110 is attached to the outer sealing object, at this time, the outer sealing object and the inner sealing object press the main body ring 100, the elastic member 200 in the annular groove 140 is pressed and deformed, so as to generate elastic thrust, push the outer ring 110 to expand outward, and push the inner ring 120 to expand inward, so that the outer ring 110 is tightly attached to the outer sealing object and the inner ring 120 is tightly attached to the inner sealing object, and further, the sealing effect of the sealing ring 600 is improved. When in a high-pressure environment, a high-pressure medium enters the annular groove 140 and contacts the elastic member 200 to transmit pressure to the elastic member 200, and the elastic member 200 further deforms under the action of the high pressure of the high-pressure medium to generate tension, so that the acting forces between the outer ring 110 and the outer sealed object and between the inner ring 120 and the inner sealed object are further improved, and the further sealing effect of the sealing ring 600 is improved. Meanwhile, the elastic member 200 also plays a role of supporting the skeleton, and can effectively prevent the main body ring 100 from deforming due to excessive pressure. It can be seen that the deformation of sealing washer 600 in high-pressure environment in this application can further improve sealed effect, and then can improve the pressurize performance in high-pressure environment, and simple structure is applicable to the commercial mass production and uses.

In one possible implementation, the elastic member 200 is an annular elastic member 200, and the axial center of the annular elastic member 200 coincides with the axial center of the annular groove 140.

Alternatively, the outer ring 110, the inner ring 120 and the connecting ring 130 are integrally formed to form the main body ring 100, so that the sealing performance of the annular groove 140 and the structural stability of the main body ring 100 can be improved.

In one possible implementation, the body ring 100 is a high temperature resistant ring. Specifically, the main body ring 100 may be made of a high polymer material, such as PTFE, PPS, PEEK, or other materials that are resistant to high pressure and high temperature and simultaneously resistant to wear.

In this implementation, the annular elastic member 200 is clamped in the annular groove 140 and abuts against the inner ring 120 and the outer ring 110, so as to push the inner ring 120 to contract inward and push the outer ring 110 to expand outward, thereby improving the sealing effect of the sealing ring 600. The annular elastic member 200 having an integral structure is clamped in the annular groove 140, and has a simple structure and convenient assembly.

Referring to fig. 4, fig. 4 is a structural diagram of a circumferential array of a plurality of elastic members 200 according to an embodiment of the present disclosure. In one possible implementation, the number of the elastic members 200 is plural, and a plurality of the elastic members 200 are circumferentially arrayed and distributed in the annular groove 140.

In this implementation, a circumferential array of multiple, independent resilient members 200 are disposed within annular groove 140 to provide a radially inwardly contracting force to inner ring 120 and a radially outwardly expanding force to outer ring 110. The plurality of resilient members 200, independent of one another, provide sufficient resilient force at different circumferential locations within the annular groove 140.

Referring to fig. 3, fig. 3 is a structural diagram of an elastic member 200 according to an embodiment of the present disclosure. In a possible implementation manner, the elastic member 200 includes a first acting arm 210, a second acting arm 220 and a tension arm 230, the first acting arm 210 abuts against an inner wall of the outer ring 110, and the second acting arm 220 abuts against an outer wall of the inner ring 120; the two ends of the tension arm 230 are respectively connected to the first acting arm 210 and the second acting arm 220, and are used for generating elastic force when the first acting arm 210 and the second acting arm 220 are pressed by force.

In this implementation, the tension arm 230 is disposed between the first acting arm 210 and the second acting arm 220, and when the first acting arm 210 and the second acting arm 220 are squeezed and approach each other, the tension arm 230 resists the deformation of the first acting arm 210 and the second acting arm 220 in the middle, so that the first acting arm 210 generates a force resisting the outer ring 110, the second acting arm 220 generates a force resisting the inner ring 120, the outer ring 110 is expanded outward to closely adhere to the outer sealing object, and the inner ring 120 is contracted inward to closely adhere to the inner sealing object.

In some embodiments, the tension arm 230 may be a straight strip, a V-shaped strip, or an arc strip, as long as the first acting arm 210 and the second acting arm 220 can be provided with an elastically deformed shape, which is not limited in the embodiments of the present application.

In a possible implementation manner, the first acting arm 210 includes at least two first acting bars 211 arranged at intervals, the second acting arm 220 includes at least two second acting bars 221 arranged at intervals, the tension arm 230 includes at least two tension bars 231, and two ends of each tension bar 231 are respectively and correspondingly connected with one first acting bar 211 and one second acting bar 221.

In this implementation, the above structure makes the elastic member 200 have a certain width, and the middle of the elastic member is in a hollow state, so that the stability of the installation position of the elastic member 200 in the annular groove 140 can be improved, the elastic force of the elastic member 200 to the outer ring 110 and the inner ring 120 can be increased, and the stability of the action of the elastic member 200 to the outer ring 110 and the inner ring 120 can be further improved.

In one possible implementation, the elastic member 200 is a U-shaped elastic sheet.

In this implementation, a plurality of U-shaped elastic pieces are circumferentially arranged in the annular groove 140, and the main body ring 100 is radially extruded to be tightly attached to the inner sealing object and the outer sealing object, so that the structure is simple and stable, and the main body ring is not easily broken or lost.

The elastic member 200 may be made of a material with high pressure resistance, corrosion and deformation resistance and stable chemical properties, such as 304 steel and 316 steel, and may be suitable for high-pressure homogenization of suspension products.

In one possible implementation, the connecting ring 130 is connected to the middle portions of the outer ring 110 and the inner ring 120 to form two annular grooves 140 between the inner ring 120 and the outer ring 110 on both sides of the connecting ring 130.

In this implementation, the inner wall of the connecting ring 130 is connected to the middle of the inner ring 120, and the outer wall is connected to the middle of the outer ring 110, so that two back-to-back annular grooves 140 are formed between the inner ring 120 and the outer ring 110, the two annular grooves 140 are respectively located at two sides of the connecting ring 130, and the notches are respectively facing to two sides of the main body ring 100. Two annular grooves 140 are formed in the main body ring 100, and an elastic member 200 is disposed in each annular groove 140, so that the sealing effect of the sealing ring 600 can be further improved.

It should be noted that the middle portion of the inner ring 120 and the outer ring 110 refers to a section of the area excluding two ends in the width direction, and belongs to the middle portion of the inner ring 120 and the outer ring 110 as long as the connection position where the connection ring 130 on the inner ring 120 and the outer ring 110 can form one annular groove 140 on two sides respectively.

In a second aspect, the present application further provides an apparatus, please refer to fig. 5, and fig. 5 is a structural diagram of an apparatus provided in an embodiment of the present application. The apparatus comprises a seal ring 600 as described in any of the embodiments of the first aspect.

The equipment adopting the sealing ring 600 can realize good sealing performance at high temperature and high pressure.

Alternatively, the above-mentioned apparatus may be a plunger type apparatus using a high-pressure homogenizer, a high-pressure cylinder, or the like.

In a possible implementation manner, the cylinder 300 and the plunger rod 400 are included, the cylinder 300 includes an accommodating cavity 310 and a mounting hole 320, the mounting hole 320 is communicated with the accommodating cavity 310, the plunger rod 400 is movably disposed in the mounting hole 320, and the sealing ring 600 is sleeved between the plunger rod 400 and the mounting hole 320 to seal the plunger rod 400 and the mounting hole 320.

In this implementation, the plunger rod 400 reciprocates in the mounting hole 320 to push the medium into or out of the accommodating chamber 310, and the packing 600 seals the plunger rod 400 and the mounting hole 320 to prevent the medium from being discharged through the mounting hole 320.

The medium is generally a fluid such as a liquid or a gas.

In one possible implementation, the notch of the annular groove 140 of the sealing ring 600 is arranged towards the receiving chamber 310.

In this implementation manner, the notch of the annular groove 140 of the sealing ring 600 is disposed toward the accommodating chamber 310, when the medium in the accommodating chamber 310 is in a high-pressure state, the high-pressure medium enters the annular groove 140 through the notch, contacts with the elastic member 200, and transmits pressure to the elastic member 200, and the elastic member 200 further deforms under the high-pressure action of the high-pressure medium to generate tension, so as to further improve the acting force between the outer ring 110 and the outer sealed object and the acting force between the inner ring 120 and the inner sealed object, and improve the sealing effect of the sealing ring 600, which means that the above-mentioned device has better pressure maintaining performance in a high-pressure environment.

In one possible implementation, the apparatus further includes a mounting member 500 disposed in the mounting hole 320, and configured to be guided into the mounting hole 320 to fix the sealing ring 600 after the sealing ring 600 is installed in the mounting hole 320.

In this embodiment, the installation tool 500 is installed after the seal ring 600 is installed in the installation hole 320, and then is introduced into the installation hole 320 to be fixed, so that the assembly of the seal ring 600 can be simplified, and the stability of installing the seal ring 600 can be improved.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A seal ring, comprising:

the main body ring comprises an outer ring, an inner ring and a connecting ring, the outer ring is sleeved outside the inner ring and is arranged opposite to the inner ring at intervals, the inner wall of the connecting ring is connected with the inner ring, and the outer wall of the connecting ring is connected with the outer ring so as to form an annular groove between the inner ring and the outer ring;

the elastic piece is arranged in the annular groove and is respectively abutted against the outer ring and the inner ring so as to generate outward expanding thrust on the outer ring and inward contracting thrust on the inner ring.

2. A seal ring according to claim 1, wherein the elastic member is an annular elastic member having an axial center coinciding with an axial center of the annular groove.

3. The seal ring according to claim 1, wherein the number of the elastic members is plural, and a plurality of the elastic members are circumferentially arrayed in the annular groove.

4. The seal ring according to claim 3, wherein the elastic member comprises a first acting arm, a second acting arm and a tension arm, the first acting arm abuts against the inner wall of the outer ring, and the second acting arm abuts against the outer wall of the inner ring;

the two ends of the tension arm are respectively connected with the first acting arm and the second acting arm and used for generating elasticity when the first acting arm and the second acting arm are stressed and extruded.

5. The seal ring of claim 3, wherein the resilient member is a U-shaped spring.

6. A seal ring according to any one of claims 1-5, characterized in that the coupling ring is coupled to the outer ring and to the middle of the inner ring to form two annular grooves between the inner ring and the outer ring, one on each side of the coupling ring.

7. An apparatus comprising a seal ring according to any one of claims 1 to 6.

8. The device of claim 7, comprising a cylinder and a plunger rod, wherein the cylinder comprises an accommodating cavity and a mounting hole, the mounting hole is communicated with the accommodating cavity, the plunger rod is movably arranged in the mounting hole, and the sealing ring is sleeved between the plunger rod and the mounting hole to seal the plunger rod and the mounting hole.

9. The apparatus according to claim 8, characterized in that the notch of the annular groove of the sealing ring is arranged towards the housing chamber.

10. The apparatus of claim 8, further comprising a mounting member disposed within the mounting hole for guiding into the mounting hole to secure the seal ring after the seal ring is installed in the mounting hole.

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