WO2017160000A1

WO2017160000A1 - Gasket

Info

Publication number: WO2017160000A1
Application number: PCT/KR2017/001744
Authority: WO
Inventors: 위성년
Original assignee: 위성년
Priority date: 2016-03-17
Filing date: 2017-02-17
Publication date: 2017-09-21
Also published as: CN208886197U; KR20170003338U; KR200486111Y1

Abstract

The present invention relates to a gasket. A gasket, which is provided for maintaining the airtightness of the connection parts of flanges for connecting pipes, comprises: a body which is pressed and fixed onto flange connection parts and thus maintains the airtightness, has on the center a flow space, through which a fluid moving via pipes passes, and is formed from a rubber material; a insertion protrusion which protrudes from each of the both sides of the body facing the flanges, protrudes so as to surround the flow space, and has an insertion groove of which one lateral side in the flow space direction opens on the side facing the flange; and a reinforcing body which is disposed on the inner part of the body through which the fluid passes such that the reinforcing body covers each of the both sides coming in contact with the flanges, covers one lateral side of the body forming the flow space and thus forms a reinforcing flow space, through which the fluid passes in direct contact, is provided in the outer direction on the both sides of the body coming into contact with the flanges so as to cover the body up to the part that is inserted into the insertion groove, and has on the end of the outer circumference an insertion portion inserted and fixed onto the insertion groove.

Description

gasket

The present invention relates to a flange pipe fitting gasket, and more particularly, to improve the structure in which the Teflon having chemical resistance and wear resistance of the gasket installed at the joint position of the flange is fixed to the main body made of rubber material It relates to a gasket which improves the sealing force by fixing it firmly while minimizing the possibility of chemical change or damage.

In general, a gasket is a sealing element and is used to prevent leakage of a stop. Such a gasket is used to prevent leakage of fluid in the parts in contact with each other.

Conventional gaskets are thin flakes used to maintain the confidentiality of the connection surface, such as pipe flange flanges, used for packing the stationary in the middle of packing. Gaskets are used for joint portions such as pipes through which various fluids flow. The conventional gasket is made of a material such as rubber. However, the conventional gasket made of a rubber material has a problem of low chemical resistance.

In other words, the gasket used in the joint device through which various chemicals pass through has poor chemical resistance, so holes or cracks are generated on the surface of the gasket made of rubber material, so that the gasket can no longer serve as a gasket. There was a problem.

Recently, a gasket has been used in which a Teflon material having strong chemical resistance and improved abrasion resistance is fixedly installed at a position where the chemical is in contact with a main body made of rubber. However, since the Teflon material itself has chemical resistance, it is difficult to adhere to the rubber body with a conventional adhesive material.

Thus, the gasket of the prior art was prepared by applying an adhesive material to the corrosion position in the state where the Teflon was corroded by chemical treatment, and pressing by pressing in a state in which the portion of the adhesive material and the rubber gasket body is bonded. .

Such a gasket of the prior art is difficult to manufacture as a toxic chemical must be used during corrosion to bond the reinforcement of the Teflon material by the adhesive material, and the chemical is leaked to the outside during compression to bond the body to the manufacturer. There was a problem that can be difficult to fabricate.

In addition, in the prior art gasket, when bubbles are generated inside the adhesive material when the adhesive material is applied, toxic chemicals or adhesive substances are blown out when the air bubbles are blown out by pressure in a pressing step or a flange installed for pressing the body. There was a problem leaking into.

In addition, when the gasket of the prior art is manufactured by pressing, even after installation on the flange, damage or breakage occurs in a state in which toxic chemicals and adhesives that have corroded Teflon remain in the adhesive portion of the body and the reinforcement of Teflon material. There was a problem that the chemicals and adhesives contaminated the inside of the flange.

In addition, the gasket of the prior art is that the rubber body and the Teflon material reinforcement is bonded by the adhesive material, the adhesive material is not applied as a whole, if the adhesive material is not applied as a whole, a gap is generated in the adhesive portion is a problem that the adhesive force is reduced as the foreign material flows in There was this.

The present invention is devised to solve the above problems, an object of the present invention is that the end of the Teflon having a chemical resistance and wear resistance of the gasket installed in the joint position of the flange is inserted into the body of the rubber material exposed to the outside It is to provide a gasket that improves the sealing force by fixing it firmly while minimizing the possibility of chemical change or damage occurring during fixing, by improving the manufacturing environment by not using harmful substances as it is physically fixed with the prevented structure. .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood from the following description.

In order to achieve the above object, the gasket according to an embodiment of the present invention is a gasket which is installed to maintain the airtight in the connecting portion of the flange connecting the pipe, it is fixed in a pressurized state in the flange connecting portion to maintain the airtight A main body formed of a rubber material having a distribution space through which a fluid moving through the pipe is provided to maintain the center; Protrusions are provided on both sides facing the flange of the main body, respectively, protruding to surround the flow space, the insertion projection having an insertion groove which is open to one side of the flow direction in the surface facing the flange; And an inner side through which the fluid of the main body passes, respectively, to surround both sides contacting the flange, and a reinforcement distribution space that surrounds one side of the main body forming the circulation space while being directly contacted with the fluid. A reinforcement main body formed to cover the main body up to a position inserted into the insertion groove on both sides contacting the flange of the main body in an outward direction, and having an insertion part inserted into and fixed to the insertion groove at an outer circumferential end thereof; It includes.

In addition, the support protrusions which protrude on both sides facing the flange of the main body, respectively, and protrude apart in a shape surrounding the circulation space with at least one or more between the circulation space and the insertion protrusion; And reinforcing protrusions protruding on both sides of the reinforcing body, respectively, in contact with the flanges, and protruding from the support protrusions so as to be latched and supported at the protruding positions.

In addition, the inside of the insertion projection may be formed in each of the groove facing the surface facing the flange to the inside of the insertion groove is formed in each of the groove shape, the flange and the outer circumference of the outer periphery of the reinforcing body It is provided so as to protrude in a direction facing the facing, protruding in the direction of the locking groove is inserted into the insertion groove is inserted into the insertion groove is provided with a locking projection to be supported when the locking is inserted.

Specific details for achieving the above object will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be configured in a variety of different forms, the present embodiments to ensure that the disclosure of the present invention is complete and the common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention.

According to one of the problem solving means of the present invention described above, the gasket according to the embodiment of the present invention is the end of the Teflon having a chemical resistance and wear resistance of the gasket installed in the joint position of the flange is inserted into the body of the rubber material to the outside As it is physically fixed in a structure that prevents exposure, it improves the manufacturing environment by using no harmful substances and provides the effect of firmly fixing while minimizing the possibility of chemical change or damage occurring during fixing.

In addition, the gasket according to the embodiment of the present invention is the end of the Teflon reinforcement is inserted into the groove formed in the plurality of protrusions protruding from the main body so as to improve the structure in which the reinforcement of the Teflon material is supported on the main body of the rubber material is fixed to the compression, As the fixed end of the Teflon to the outside is physically fixed without being exposed to the outside, the foreign material is prevented from entering, thereby providing an effect of increasing the lifetime.

In addition, the gasket according to the embodiment of the present invention is not used of the harmful substances according to the fixing as the reinforcement of the Teflon material is physically fixed to the main body of the rubber material, the operator is in contact with the harmful substances during the production of the product It provides the effect of improving productivity.

1 is a perspective view showing a gasket according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of the gasket of FIG. 1. FIG.

3 is a plan view illustrating the gasket of FIG. 1.

4 is a cross-sectional view illustrating the gasket of FIG. 1.

5 is a partially omitted cross-sectional view showing the gasket of FIG. 1.

6 is a partially omitted cross-sectional view showing a gasket according to another embodiment of the present invention.

7 is a partially omitted cross-sectional view showing a gasket according to another embodiment of the present invention.

100: gasket 110: main body

111: main body 112: distribution space

113: flange fixing hole 114: insertion projection

115: insertion groove 116: locking groove

117: support protrusion 120: reinforcement

121: reinforcement body 122: reinforcement distribution space

123: insertion portion 124: reinforcement projection

125: jamming

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, numerals (eg, first, second, etc.) used in the description process of the present specification are merely identification symbols for distinguishing one component from another component.

In addition, in the present specification, when one component is referred to as "connected" or "connected" with another component, the one component may be directly connected or directly connected to the other component, but in particular It is to be understood that, unless there is an opposite substrate, it may be connected or connected via another component in the middle.

The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in order to clearly describe the present invention, parts irrelevant to the description are omitted in the drawings, and the width, length, thickness, etc. of the components in the drawings may be exaggerated for convenience. Like reference numerals denote like elements throughout the specification.

Hereinafter, with reference to the accompanying drawings to describe the specific content for the practice of the present invention.

1 is a perspective view illustrating a gasket according to an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view illustrating the gasket of FIG. 1, FIG. 3 is a plan view illustrating the gasket of FIG. 1, and FIG. 4 is a gasket of FIG. 1. 5 is a partially omitted cross-sectional view illustrating the gasket of FIG. 1.

1 to 5, the gasket 100 according to an embodiment of the present invention is located between the flange and the flange respectively installed in the portion to which the pipe is connected together between the flanges when fixing the flange for pipe connection It is provided to maintain the airtight while being fixed. The gasket 100 is installed in the pipe connected to the flange to maintain the airtightness between the flanges to prevent the fluid from leaking to the outside when moving. Here, the gasket 100 is provided with a rubber material that can maintain the airtightness while having elasticity. However, in the case of a rubber material, as the chemical resistance decreases, when the chemical fluid passes, the rubber material is dissolved or damaged to contaminate the fluid itself, or the airtightness decreases, so that the rubber material is provided to reinforce the Teflon material in contact with the fluid. .

Such a gasket 100 includes a body portion 110 and a reinforcement portion 120 installed between the flanges. The main body 110 includes a main body 111, an insertion protrusion 114, and a support protrusion 117 installed to maintain an airtightness between the flanges.

The main body 111 has a circulation space 112 through which fluid moving through a pipe passes through the center, which is fixed in a pressurized state at a flange connection part and maintains hermeticity, and a plurality of positions are inserted to insert a configuration for fixing the flange. It is formed of a rubber material having a flange fixing hole 113 of the through-hole.

The main body 111 is provided in a circular plate shape having the same cross-sectional shape as the flange and has a circulation space 112 through which fluid flows to the center. A fixing means such as a bolt fixing the flange is provided at an outer circumference of the distribution space 112. Forming the flange fixing hole 113 in the form of a through-hole in the insertion position is provided to be fixed with the flange while the fixing means is inserted into the flange fixing hole 113.

Insertion protrusions 114 are provided on both sides facing the flange of the main body 111, respectively, protrude in a shape surrounding the distribution space 112 away from the distribution space 112, and faces the flange It has an insertion groove 115 is open to the flow direction in the surface.

Insertion protrusion 114 is protruded on both sides facing the flange of the body 111 to surround the distribution space 112, respectively, the insertion groove in which the direction of the distribution space 112 is opened so that the reinforcement portion 120 is inserted. 115) is formed.

The support protrusions 117 protrude on both sides facing the flanges of the main body 111, respectively, and fall apart in a shape surrounding the flow space 112 at least one between the flow space 112 and the insertion protrusion 114. It is provided to protrude. The support protrusions 117 are arranged in plural in a shape surrounding each of the plurality of distribution spaces 112 on both surfaces facing the flange of the main body 111, and the reinforcement part 120 inserted and fixed to the insertion protrusion 114 is caught. It is supported by the is provided so that the fixing force is improved.

The reinforcement part 120 includes a reinforcement body 121 and a reinforcement protrusion 124 provided to surround the fluid contact portion of the main body 111.

The reinforcement body 121 is disposed to surround both sides of the body 111 in contact with the flange inside the fluid passing through, reinforcement distribution space surrounding the position in contact with the pressure on the inner surface of the distribution space 112 It has a 122, and is provided to cover the main body 111 to the position to be inserted into the insertion groove 115 on both sides in contact with the flange of the main body 111 in the outward direction in the reinforcement distribution space 122, the outer peripheral end It has an insertion portion 123 is inserted into the insertion groove 115 and fixed.

The reinforcement body 121 is a Teflon material which is fixed while being inserted into the insertion groove 115 by extending in the outward direction of the distribution space 112 and the distribution space 112 in contact with the fluid of the body 111. Since it is provided in the state in close contact with the main body 111 by pressing and fixed without being exposed to the outside physically fixed, it can protect while strengthening the chemical resistance of the main body 111 without the use of harmful substances due to the adhesion.

The reinforcement body 121 forms a reinforcement distribution space 122, which is a space through which fluid is directly contacted while surrounding one side of the main body forming the distribution space 112, and inserts the insertion protrusion 114 outward. The insertion portion 123 inserted into the groove 115 is extended to form a fluid, and the life of the main body can be increased as the fluid is protected while being prevented from contacting the main body 111, and the fixed portion is fixed to the outside by the insertion. While not exposed, contamination can be prevented and the use of hazardous substances by adhesion can be suppressed, thereby improving the stability of manufacturing and installation.

The reinforcement protrusions 124 protrude from both sides in contact with the flanges of the reinforcement body 121, and protrude so that the support protrusions 117 are latched and supported at the protruding positions. The reinforcement protrusion 124 protrudes at a position caught by the support protrusion 117 in a shape surrounding the reinforcement distribution space 122 between the reinforcement distribution space 122 and the insertion part 123, and the support protrusion 117. Is inserted so that the reinforcement body 121 is prevented from flowing.

Referring to FIG. 6, the gasket 100 according to another embodiment of the present invention includes a main body 110 and a reinforcement 120. Here, some components of the main body 110 and the reinforcement part 120 are similar to the gasket 100 illustrated in FIGS. 1 to 5, and only the difference in configuration will be described below.

In the inside of the insertion protrusion 114 surrounding the distribution space 112 of the main body 111, groove-shaped locking grooves 116 are formed at positions facing the surface facing the flange inwardly of the insertion groove 115, respectively. do.

The reinforcement part 120 includes a reinforcement body 121, a reinforcement protrusion 124, and a locking protrusion 125. Since the reinforcing body 121 and the reinforcing protrusion 124 are similar to the gasket 100 illustrated in FIGS. 1 to 5, the description thereof will be omitted, and only the locking protrusion 125 having a difference will be described.

The locking protrusion 125 is provided to protrude in the direction facing the flange contacting the outer circumference of the outer periphery of the reinforcing body 121, the insertion groove of the insertion portion 123 is inserted into the insertion groove 115 115 is provided so that the locking groove 116 is protruded in the direction formed when the insertion is supported when the insertion.

When the locking protrusion 125 is inserted into the insertion groove 115 together with the insertion part when the reinforcing body 121 is installed, the reinforcing body 121 is caught by the locking groove 116 installed in a direction facing the flange. The fixing force may be improved by preventing) from being released.

Here, the locking groove 116 may be formed in the insertion groove 115 at the time of manufacture of the body, and when the crimping state in which the reinforcing body 121 having the locking protrusion 125 is inserted into the insertion groove 115 is pressed. It can be produced to be caught, it will be apparent to those skilled in the art that can be produced in various ways without detailed description thereof.

Referring to FIG. 7, the gasket 100 according to another embodiment of the present invention includes a main body 110 and a reinforcement 120. Here, some of the configuration of the main body 110 is similar to the gasket 100 shown in FIGS.

Insertion protrusion 114 surrounding the distribution space 112 of the main body 111 is formed to extend to cover the insertion portion 123 of the reinforcement body 121 is provided to improve the fixing force.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas falling within the scope of the present invention should be interpreted as being included in the scope of the present invention.

Claims

In the gasket which is installed to maintain airtightness in the connecting portion of the flange connecting the pipe,

A main body formed of a rubber material having a circulation space through which a fluid moving through the pipe is fixed to the flange connection part and is fixed in a pressurized state to maintain airtightness;

Protrusions are provided on both sides facing the flange of the main body, respectively, protruding to surround the flow space, the insertion projection having an insertion groove which is open to one side of the flow direction in the surface facing the flange; And

It is arranged to surround both sides in contact with the flange inside the fluid passing through the main body, the reinforcement distribution hole which is a space that is directly passed through the fluid while covering one side of the main body forming the distribution space A reinforcement body formed to cover the main body to a position inserted into the insertion groove on both sides contacting the flange of the main body in an outward direction, and having an insertion part inserted into and fixed to the insertion groove at an outer circumferential end thereof; Containing

gasket.
The method of claim 1,

Support protrusions protruding on both surfaces of the main body and in contact with the flanges, the support protrusions being protruded in a shape surrounding the distribution space with at least one between the circulation space and the insertion protrusion; And

Reinforcing protrusions are respectively protruded on both sides in contact with the flange of the reinforcing body, the reinforcing protrusions protruding so that the support projection is caught in the protruding position;

gasket.
The method of claim 1,

The inside of the insertion projection is formed in each of the groove-shaped locking grooves in the position facing the surface in contact with the flange inside the insertion groove,

The outer periphery of the outer periphery of the reinforcing body is provided to protrude in a direction facing the direction in contact with the flange, protrudes in the direction of the locking groove to be inserted into the insertion groove is inserted into the insertion groove to support the locking when inserted It further comprises a; engaging projections to be provided

gasket.