KR102141837B1 - Elliptic gasket and Apparatus for joint having the same - Google Patents

Abstract

The present invention relates to an elliptical gasket having elasticity and preventing leakage of fluid at a connection portion between a pipe and a joint device. The elliptical gasket has a cross-sectional shape of an ellipse having a first interval in which the left and right lengths are the minimum distance and a second interval in which the vertical length is the maximum distance, wherein the first interval has a length reduced by 1 to 5% from a diameter of a garden with respect to a center of the garden having four contact points with the ellipse, and the second interval has the length that is 1 to 5% longer than the diameter of the garden.

Description

Elliptic gasket and Apparatus for joint having the same}

The present invention relates to an elliptical gasket and a joint device including the same, and more particularly, to an elliptical gasket having a good sealing force and easy detachment and a joint device including the same.

Typically, the pipe is mainly used for the transfer of a fluid or gas, such as water, oil, gas, etc. Since these pipes have a limited length to be produced, if the entire length of the transfer line is long, it has a number of connection points in the middle, In addition to the welding or flange connection, the pipe and the pipe are closely connected to each other through a separate joint device.

Among them, the joint device wraps the pipe that transports the fluid and the abutting portion of the pipe from the outside, and tightens the gasket of the joint device as a bolt and nut to tightly connect the two pipes by the tensile force generated therefrom. In addition, two pipes are connected to seal or pack the joints of pipes and pipes with sealing members such as rubber or synthetic resin, such as gaskets, to prevent fluid from leaking or foreign matters flowing into the gaps in the contact areas. It is performing a function.

Such a joint device must be tightly compressed so that the connection of the pipes is not deducted even if the pipes are shaken due to shocks or changes in the pressure or flow of the fluid flowing inside the pipes, and the two pipes are connected. It should be ensured that the connections are tightly secured so that the fluid does not leak into the gaps at the pipe ends.

On the other hand, at present, a number of researches and developments have been made to ensure the sealing and solid joints are more secured as described above.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to provide an elliptical gasket having a high sealing force and easy detachment and a joint device including the same.

In addition, the object of the present invention is to prevent the phenomenon of chewing in the left and right bolt fastening part of the gasket when the joint device having the upper and lower bodies divided into up and down and coupled to each other is bolted, the gasket is coupled to the upper and lower body It is to provide a joint device to improve the workability when assembling the pipe.

An elliptical gasket according to an embodiment of the present invention prevents fluid leakage in a connection portion of a pipe and a joint device, and in an elliptical gasket having elasticity, a first distance having a minimum left and right length and a maximum distance up and down is the maximum distance. It has a cross-sectional shape of an ellipse having a second gap, and the first gap is 1% to 5% shorter than the diameter of the garden with respect to the center of the garden having four contacts with the ellipse, and the second The interval is characterized by having a length of 1% to 5% longer than the diameter of the garden.

Specifically, the elliptical gasket is located on the outer side, the first body portion is formed extending from one end to the other end to have a predetermined length in the longitudinal direction; Located in the inner periphery, the front body extending in the direction from the one end of the first body portion toward the other end in the longitudinal direction and the rear body extending in the direction toward the one end from the other end of the first body portion in the longitudinal direction A second body portion including; And a front connection portion connecting one end of the first body portion and a front body of the second body portion to form an inner space between the first body portion and the second body portion, and the other end portion of the first body portion and the It includes a connection portion including a rear connection portion for connecting the rear body of the second body portion, the first body portion, the cross-section has a shape of an ellipse whose left and right length is the first gap and the length up and down has the second gap, The second body portion may have an elliptical cross section.

Specifically, the first body portion, an outer convex portion protruding in the outer direction on the outside from the central portion in the longitudinal direction may be formed.

Specifically, the outer convex portion, a plurality of spaced apart at predetermined intervals on the circumference of the cross-section, may be formed to protrude at a height parallel to each other.

Specifically, the first body portion may be formed with an outer concave portion recessed in an inward direction on the outside from the central portion in the longitudinal direction.

Specifically, the outer recesses may be formed to be spaced apart at predetermined intervals on the circumference of the cross-section, and may be formed to be recessed at a depth parallel to each other.

Specifically, the first body portion may be formed with an inner convex portion protruding inwardly from the central portion in the longitudinal direction on the inner side.

Specifically, the inner convex portion may include a wing portion protrudingly formed to be located in the inner frame more than the second body portion in the inner frame direction.

Specifically, each of the front body and the rear body of the second body portion includes a first protrusion protruding in a direction opposite to the first body portion, and the first protrusion is between an outer diameter and an inner diameter of the pipe. It may be formed to have a protruding length smaller than the thickness of the pipe being defined.

Specifically, each of the front body and the rear body of the second body portion further includes a second protrusion protruding toward the first body portion, and the second protrusion is in contact with the inner convex portion to the inside. By forming a space, pressure can be formed in the interior space.

A joint device according to an embodiment of the present invention includes a hollow body-shaped housing that surrounds an outer circumference of a pipe inserted at both ends to join the pipes; And it characterized in that it comprises an elliptical gasket according to claim 1, having elasticity to prevent leakage of fluid at the connection between the pipe and the housing.

Specifically, when the pipe is inserted into the housing, further comprising an auxiliary sleeve for protecting the elliptical gasket and guiding the pipe, wherein the auxiliary sleeve has a shape of a hollow circle in cross section, one end of which is the auxiliary sleeve It can be formed to extend inclined in the direction away from the center of the outside.

Specifically, the auxiliary sleeve includes: a first portion formed to have a predetermined length in the longitudinal direction; A second portion extending from an end of the first portion in an inclined direction outwardly from the center of the auxiliary sleeve; And a first opening in which the opening is formed in the longitudinal direction in the first portion, and the first opening is formed in a plurality of spaced apart predetermined intervals in the circumferential direction, and has a straight line shape or a dotted line shape. Can.

Specifically, the third portion includes a third portion extending from an end of the second portion in an outward direction from the center of the auxiliary sleeve, and the third portion is the center of the auxiliary sleeve of the second portion At an angle greater than the angle of the second partial inclination inclined in the outward direction, it may be formed to extend inclined in the direction outward from the center of the auxiliary sleeve.

Specifically, the second opening includes a second opening in which an opening is formed in the longitudinal direction through the first portion to the second portion, and the second opening has a shape passing through the second portion through the first portion. Can.

Specifically, the elliptical gasket includes a first body portion that is located on the outer side and extends from one end to the other to have a predetermined length in the longitudinal direction, and the first body portion is located at a central portion in the longitudinal direction. A receiving hole recessed in the inner direction is formed on the outside, and the housing may further include an inserting hole protruding from the inner surface to be inserted into the receiving hole.

The elliptical gasket and the joint device including the same according to an embodiment of the present invention have an effect of having excellent sealing force and easy detachment.

In addition, the elliptical gasket according to an embodiment of the present invention and a joint device including the same, when the upper body and the lower body of the joint device bolted, the gasket has an effect of preventing chewing in the left and right bolt fastening portion.

In addition, the elliptical gasket and the joint device including the same according to an embodiment of the present invention have the effect of increasing the pipe assembly by fixing the gasket in the housing in a state where the housing is caught by both fastening bolts when the pipe is assembled.

1 is an exploded perspective view of a joint device according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the joint device according to an embodiment of the present invention cut from the side.
3 is a side view of a gasket of a joint device according to an embodiment of the present invention.
4 is a cross-sectional view of a gasket of a joint device according to an embodiment of the present invention.
5 is a cross-sectional view of a gasket of a joint device according to an embodiment of the present invention.
6 is a mounting diagram of the auxiliary sleeve of the joint device according to an embodiment of the present invention.
7 is a perspective view of an auxiliary sleeve of a joint device according to an embodiment of the present invention.
8 is a cross-sectional view of an auxiliary sleeve of a joint device according to an embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. In addition, it should be noted that, in addition to reference numerals to the components of each drawing in the present specification, the same components have the same numbers as possible, even if they are displayed on different drawings. In addition, in the description of the present invention, when it is determined that detailed descriptions of related known technologies may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

Hereinafter, the detailed description will be described in detail with the drawings shown below.

1 is an exploded perspective view of a joint device according to an embodiment of the present invention, FIG. 2 is a perspective view of a joint device according to an embodiment of the present invention, and FIG. 3 is a side view of a gasket of a joint device according to an embodiment of the present invention , Figure 4 is a cross-sectional view of the gasket of the joint device according to an embodiment of the present invention, Figure 5 is a cross-sectional view of the gasket of the joint device according to an embodiment of the present invention, Figure 6 is a joint device according to an embodiment of the present invention 7 is a perspective view of an auxiliary sleeve of a joint device according to an embodiment of the present invention, and FIG. 8 is a cross-sectional view of an auxiliary sleeve of a joint device according to an embodiment of the present invention.

1 to 8, the joint device 1 including the gasket according to the present invention includes a housing 10, a bolt portion 20, a gasket 30 and an auxiliary sleeve 40. . Here, it is noted that the gasket 30 means the oval gasket 30, and even if only the gasket 30 is described, it means the oval gasket 30.

Hereinafter, a joint device 1 according to an embodiment of the present invention will be described in detail.

The joint device 1 is composed of a housing 10, a bolt portion 20, and a gasket 30.

The housing 10 surrounds the outer circumference of the pipe P inserted into both sides, thereby joining the two pipes P, and the semi-circular upper body 11 and the semi-circular lower body 12 are combined. It is formed to form a circle.

On both side surfaces of the upper body 11 and the lower body 12, flanges (not shown) to which the bolt portions 20 to be described later can be fastened may be formed, respectively. The flange allows the upper body 11 and the lower body 12 to be joined by the bolt portion 20.

Gaskets 30 may be formed on the inner surfaces of each of the upper body 11 and the lower body 12, and the groove-shaped depressions formed on the outer periphery of the pipe P may be upper and lower parts. The body 12 is inserted into both edges of each body to be fixed.

Housing 10, the upper body 11 and the lower body 12, each of the insertion hole 111 may be formed on the inner surface.

The insertion hole 111 is coupled to the receiving hole 315 formed on the upper outer surface of the gasket 30 to be described later, and serves to secure the gasket 30 to the housing 10.

In addition, the housing 10 does not have an insertion hole 111 in the upper body 11 and an insertion hole 111 may be formed only in the lower body 12. Of course, the housing 10 may not have an insertion hole 111 in the upper body 11 and the lower body 12.

When the upper body 11 and the lower body 12 are combined, the housing 10 may have an oval shape that is about 2 to 10<> long left and right compared to the upper and lower sides. Through this, when assembling through the bolt portion 20, There is an effect that can prevent the chewing of the gasket 30.

The housing 10 may have a coupling jaw 112 formed when coupled with a pipe P, and the coupling jaw 112 has a shape of an ellipse and has a housing in which a bolt portion 20 to be described later is fastened ( 10) Based on the flange surface of the image, the left and right diameters may have an ellipse shape with an increase in the range between 2% and 10% of the upper and lower diameters.

Here, the housing 10, the outer ratio may have the same ratio as the oval shape of the engaging jaw 112.

The bolt portion 20 allows the flanges formed on both side surfaces of the upper body 11 and the lower body 12 to be coupled to each other. Here, the bolt portion 20 is made of a bolt 21 and a nut 22, and after the bolt 21 penetrates the flanges of the upper body 11 and the lower body 12, it is to be fastened with the nut 22. Can.

A plurality of bolt portions 20 may be formed, and for example, two bolt portions 20 may be formed.

The gasket 30 prevents fluid leakage at a connection portion between the pipe P and the housing 10 and has elasticity. Here, the gasket 30 is formed of at least one of rubber, ethylene propylene rubber (EPDM), nitrile, silicon, neoprene, and fluoro-elastomer. Can.

The gasket 30 has a cross-sectional shape of an ellipse having a first distance R1 having a minimum distance between left and right lengths and a second distance R2 having a maximum distance between top and bottom lengths, and the first distance R1 is equal to an ellipse. With respect to the center of the garden R formed to have four contacts, it has a length reduced by 1% to 5% from the diameter of the circle R, and the second interval R2 is 1% to the garden diameter R It has an extended length of 5%. Here, the garden can be combined with a circle.

The gasket 30 may preferably have a length in which the first gap R1 is 1%, 3% or 5% shorter than the diameter of the circle R, and the second gap R2 is the diameter of the circle R It may have an increased length of 1%, 3% or 5%.

Through this oval shape, the gasket 30 is not chewed when inserted into the housing 10, thereby preventing damage to the gasket 30 and preventing rotation inside the housing 10 when the pipe P is inserted. It has the effect.

The gasket 30 may be formed of a first body portion 31, a second body portion 32, and a connecting portion 33.

The first body portion 31, which is located on the outside, may be formed to extend from one end to the other to have a predetermined length in the longitudinal direction.

The first body portion 31 may have an elliptical cross-section having an elliptical length having a first distance R1 and an upper and lower length having a second distance R2.

The first body portion 31 may have a longitudinal cross-section. The shape of the straight line is a shape of a portion where the outer convex portion 311 and the outer concave portion 314, which will be described later, are not formed.

The first body portion 31 may be formed with an outer convex portion 311 protruding in the outer direction on the outside from the central portion in the longitudinal direction.

The outer convex portion 311 may be formed on a circumference of the cross section at a predetermined interval, and may be formed in plural, for example, six. At this time, the outer convex portion 311 may have an uneven shape.

As described above, when the gasket 30 of the present invention is inserted into the housing 10, the compression force in the vertical direction is further exerted through the shape of the outer convex portion 311 so that the gasket 30 extends in the left and right directions, thereby making an ellipse. The gasket 30 of the shape can be accommodated in the housing 10 with an accurate area.

The first body portion 31 may be formed with an inner convex portion 312 protruding inward from the center portion in the longitudinal direction on the inner side.

The inner convex portion 312 is formed to come into contact with the second protrusion 322 to be described later, thereby making it possible to form an inner space.

The inner convex portion 312 may include a wing portion 313 protrudingly formed to be located in the inner frame more than the second body portion 32 in the inner frame direction.

In the wing part 313, a pipe P flowing into the housing 10 from one side contacts, and the housing 10 comes into contact with the other side. On the other hand, since the wing portion 313 is located at the central portion in the longitudinal direction of the first body portion 31, due to this, the wing portion 313, the pipe (P) is deflected in the housing 10 Instead of being positioned, it can be positioned exactly in the center of the housing 10.

A plurality of wing portions 313 may be formed on the circumference of the cross-section at predetermined intervals, and for example, eight.

The wing portion 313 may have a shape in which the shape of the lower end formed on the circumference of the cross section has a wave shape with a sawtooth protruding upward, or may have a shape of a circle, whereby the gasket 30 is inserted into the housing 10. When the gasket 30 is pressed in the vertical direction, the wing portion 313 is twisted, thereby preventing the adhesion to the pipe P from being obstructed. Here, the number and length of the teeth may be variously formed in the shape of the lower end of the wing portion 313 on the circumference of the cross section.

In addition, in the embodiment of the present invention, the first body portion 31 may be formed with an outer recessed portion 314 that is recessed in the inner direction on the outside in the central portion in the longitudinal direction.

The outer concave portion 314 may be formed to be spaced apart at a predetermined interval on a circumference of the cross-section, and may be formed to alternate with the outer convex portion 311, for example.

As described above, when the gasket 30 of the present invention is inserted into the housing 10, the compression force in the vertical direction is further applied through the shape of the outer concave portion 314 so that the gasket 30 extends in the left and right directions, thereby making an ellipse. The gasket 30 of the shape can be accommodated in the housing 10 with an accurate area.

In addition, the first body portion 31 may have a tooth structure (not shown) on the outer surfaces of both ends.

The tooth structure, in the first body portion 31, may form a space between the housing 10 and the gasket 30. This sawtooth structure has an effect of preventing excessive contact between the housing 10 and the gasket 30, and can form a blocking film when the fluid leaks, thereby forming a space for storing the leaked fluid in a circle. Can.

The first body portion 31 may be formed with a receiving hole 315 that is recessed in the inner direction on the outside from the central portion in the longitudinal direction. The accommodation port 315 is formed to accommodate the insertion port 111 protruding from the inner surface of the housing 10, and may serve to securely fix the housing 10 and the gasket 30. .

The second body portion 32 is located in the inner periphery, the front body 32a extending longitudinally from one end of the first body portion 31 toward the other end portion, and the first body portion in the longitudinal direction It may include a rear body (32b) is formed extending in the direction toward the one end from the other end of (31).

At this time, the second body portion 32, each of the front body (32a) and the rear body (32b) may be formed in a round gin form toward the inner side of the first body portion (31).

Here, the second body portion 32, the cross section may have the form of a garden, the garden may have a size to accommodate the outer diameter of the pipe (P). Preferably, the second body portion 32 has an ellipse of the first body portion 31 and a circle shape having a center and concentricity of a garden having four contacts, but smaller than the first gap R1 It can have a diameter of length.

In this way, the gasket 30 of the present invention, the existing gasket for the joint is formed to have a smaller inner diameter than the outer diameter of the pipe (P) for close contact, in order to solve the disadvantages of manpower consumption during assembly, the gasket 30 The inner diameter of the pipe (P) is formed in a size to accommodate the outer diameter, that is, the shape of the ellipse formed by the cross section of the second body portion 32 is the size to accommodate the outer diameter of the pipe (P) By having, there is an effect that can be quickly assembled with the pipe (P). That is, the gasket 30 of the present invention may be a quick (Quick) type gasket.

When the gasket 30 of the present invention is used, for quick assembly, the bolts 20 and the nuts 22 of the bolts 20 are not separated from the bolts 20 on the left and right sides of the housing 10. In a state where only a part is fastened, the nut 22 is put on the bolt 21, and the housing 10 is opened up and down, so that the pipe P is easily inserted into the gasket 30.

At this time, as the housing 10 is opened up and down, that is, as the upper body 11 and the lower body 12 of the housing 10 are opened to each other, a space arises and a problem occurs that the gasket 30 is not fixed. Can. In order to solve this, the present invention, as described above, through the receiving hole 315 formed in the first body portion 31 and the insertion hole 111 formed on the inner surface of the housing 10, the gasket 30 is a housing It is solved by allowing it to be fixed at (10).

In addition, the second body portion 32, the cross section may have the form of a garden, the size of the garden may have a size to accommodate the outer diameter of the pipe (P). In this case, the outer convex portion 311, the outer concave portion 314 and the groove portion 331 to be described later may be omitted.

In addition, each of the front body 32a and the rear body 32b of the second body portion 32 protrudes in a direction opposite to the first body portion 31 and the first protrusion 321 and the first body portion ( 31) may include a second projection 322 protruding toward.

The first protrusion 321 may have a protrusion length smaller than the thickness of the pipe defined between the outer diameter and the inner diameter of the pipe P.

The first protrusion 321 is formed to protrude in a direction opposite to the first body part 31, so that when the pipe P is inserted into the housing 10, the first protrusion 321 is touched, and the first protrusion 321 is touched. The protruding portion 321 is advanced with the pipe P, so that the gasket 30 is pulled deeper in the inner direction of the housing 10, and the gasket 30 is sealed between the pipe P and the housing 10. The effect of making it possible to further improve the force and fixing force is expressed.

At the same time, the first protrusion 321 has a protrusion length smaller than the thickness of the pipe defined between the outer diameter and the inner diameter of the pipe P, so that the first protrusion 321 is not continuously dragged to the pipe P, Try to leave in the middle.

In addition, the first protrusion 321 does not continue with the advancement of the pipe P, and the first protrusion 321 proceeds with the pipe P for a predetermined distance and then leaves the pipe P. At this time, the first protrusion 321, while seated on the pipe (P), is rotated in the direction of the first body portion 31, this rotation, the second body portion 32 by the pipe (P) There is an effect to help rotate in the direction of the first body portion (31).

The first protruding portion 321 may include a concave portion (not shown) in which a portion connected to the second protruding portion 322, which will be described later, is concavely formed in a'V' shape. Here, the concave portion serves to allow the first protrusion 321 to easily escape from the pipe P.

When the portion where the first protrusion 321 is connected to the second protrusion 322 is formed in a straight line, the first protrusion 321 cannot be easily separated after continuously advancing along the pipe P. That is, when the portion where the first protrusion 321 is connected to the second protrusion 322 is formed in a straight line, the first protrusion 321 does not escape from the pipe P and continues to move forward. As a result, the gasket 30 is broken in shape, and there is a problem in that it fails to perform the sealing and fixing between the housing 10 and the pipe P.

Accordingly, in the present invention, the first protrusion 321 and the second protrusion 322 is connected to the part having a concave portion that is concavely formed in a'V' shape, the first protrusion 321 is from the pipe (P) There is an effect that can easily escape.

In addition, the second body portion 32 may have a tooth structure (not shown). The tooth structure may form a space between the pipe P and the gasket 30. In this case, the sawtooth structure formed on the second body portion 32 may form a blocking film when a fluid leaks between the pipe P and the gasket 30, thereby forming a space for storing the leaked fluid in a circle. can do.

The second protrusion 322 may be in contact with the inner convex portion 312 to form an inner space to form a pressure in the inner space. Through this, the gasket 30 can receive the fluid leaking into the inner space, and the fluid in the inner space generates a pressure that expands outward, so that the housing 10 direction and the gasket located outside the gasket 30 It generates a pushing force in the direction of the pipe (P) located inside the (30), thereby improving the sealing force and the fixing force.

The second protrusion 322 may have a shape in which the inner convex portion 312 and the portion in contact with each other cross each other, or a portion in contact with the inner convex portion 312 in contact with each other.

The second protruding portion 322 protrudes in the direction toward the inner convex portion 312 on the surface facing the inner convex portion 312 or is recessed in the direction opposite to the inner convex portion 312 (FIG. 4 and 5). In this case, a plurality of inlets are spaced apart at predetermined intervals in a direction surrounding the second protrusions 322, and preferably, 8 pairs may be formed by pairing each of them.

When the inlet is formed to be recessed in a direction opposite to the inner convex portion 312, the fluid is allowed to flow into the inner space, but the size of the hole is smaller than that of the second protrusion 322 so that the amount discharged from the inner space is small. It can be formed to a fairly small size.

Through this, the present invention, by making the flow of fluid into the sealed interior space more easily due to the contact between the second protrusion 322 and the inner convex portion 312, the expansion force of the gasket 30 in the outward direction is easily achieved. There is an effect that can be expressed.

In addition, when the inlet is formed to protrude in the direction toward the inner convex portion 312 on the surface facing the inner convex portion 312, the inner convex portion 312 and the second protrusion 322 are prevented from being in close contact It has the effect. That is, when the pipe P pushes and winds the gasket 30, when the second protrusion 322 comes into contact with the inner convex portion 312, the second protrusion 322 retracts back in reaction. do.

Through this, the present invention, by making the flow of fluid into the sealed interior space more easily due to the contact between the second protrusion 322 and the inner convex portion 312, the expansion force of the gasket 30 in the outward direction is easily achieved. There is an effect that can be expressed.

In the present invention, the second body portion 32, the inner diameter of the inner wall can be made smaller than the outer diameter of the pipe (P).

In addition, the second body portion 32 may have a tooth structure (not shown) on the outer surfaces of both ends.

The tooth structure, in the second body portion 32, may form a space between the housing 10 and the gasket 30. Such a sawtooth structure has an effect of preventing excessive contact between the housing 10 and the gasket 30, and can form a blocking film when the fluid leaks, thereby forming a space for storing the leaked fluid in a circle. Can.

The connection part 33 includes an end body of the first body part 31 and a front body of the second body part 32 to form an inner space between the first body part 31 and the second body part 32. It may include a front connection portion (33a) connecting the 32a) and a rear connection portion (33b) connecting the other end of the first body portion 31 and the rear body (32b) of the second body portion (32).

At this time, the connection portion 33 may be connected to the first body portion 31 while being inclined in a direction away from the center of the gasket 30, and may be connected to the second body portion 32 in a round shape. Due to this, when combined with pipes P of various dimensions, there is an effect that the coupling with the outer diameter of the pipes P of various dimensions is made smooth. Of course, at this time, the second body portion 32 may be formed to be inclined in an oblique direction toward the inner side of the first body portion 31 as described above.

The connecting portion 33 generates a force that allows the second body portion 32 to rotate to the first body portion 31 through an elastic force.

Further, in the present invention, a spring (not shown) may be formed in the inner space.

The spring is located in the interior space, and can generate an elastic force in addition to the pressure of the fluid formed in the interior space. Due to this, the spring can further improve the force that the gasket 30 is in close contact with the pipe P and the housing 10.

Here, in the spring, the cross section has a trace of a circle, and the longitudinal cross section may have a coil shape of a circle.

The connecting portion 33 may further include a groove portion 331 that is recessed inward.

The groove portion 331 serves to absorb the force of pressing the left and right from the top and bottom of the gasket 30 when assembling the upper body 11 and the lower body 12 of the housing 10. At this time, the groove portion 331, a predetermined width and depth can be formed, such a predetermined width and depth is compressed, it is possible to effectively absorb the force of pressing the left and right from the top and bottom of the gasket 30.

At this time, the groove portion 331 may be formed in the form of a closed curve on the outer surface of the connecting portion 33 or may be partially formed in the form of an arc.

When the groove portion 331 is formed in the form of a closed curve on the outer surface of the connection portion 33, it may have a shape of a garden or ellipse, in this case, the width "I depth at the top and bottom positions of the gasket 30 is from left to right It can be formed deeper and wider than the width and depth of.

When the groove portion 331 is partially formed in the shape of an arc on the outer surface of the connection portion 33, it may be formed only in the upper and lower positions of the gasket 30. The groove portion 331 can be seen in FIG. And in FIG. 5, the groove portion 331 is omitted.

That is, when assembling the upper body 11 and the lower body 12 of the housing 10, the force pressed from the top and bottom of the gasket 30 to the left and right is more crushed than the left and right of the gasket 30, so the groove portion (331), when formed in the form of a closed curve on the outer surface of the connecting portion 33, the width "I depth in the up and down position of the gasket 30 is formed deeper and wider than the width and depth in the left and right, the connecting portion ( When partly formed in the shape of an arc on the outer surface of 33), it may be formed only in the upper and lower positions of the gasket 30.

The auxiliary sleeve 40 may protect the gasket 30 and guide the pipe P when the pipe P is inserted into the housing 10.

The auxiliary sleeve 40, the cross-section has the shape of a hollow circle, one end may be formed to extend inclined in the direction away from the center of the auxiliary sleeve 40.

Specifically, the auxiliary sleeve 40 may be formed of a first portion 41, a second portion 42, a third portion 43, a first opening 44 and a second opening 45. At this time, the first portion 41, the second portion 42 and the third portion 43, the inside is formed to surround the pipe (P), the outside may be formed to abut the gasket 30.

The first portion 41 may be formed to have a predetermined length in the longitudinal direction.

The second portion 42 may be formed to be inclined in a direction away from the center of the auxiliary sleeve 40 from one end of the first portion 41.

The third portion 43 may be formed to be inclined in a direction away from the center of the auxiliary sleeve 40 from one end of the second portion 42.

The third part 43 is at an angle greater than the angle of the second part inclination inclined outward from the center of the auxiliary sleeve 40 of the second part 42, at the center of the auxiliary sleeve 40 It can be formed to extend inclined in the direction outward.

Through the inclination of the second portion 42 and the third portion 43, the auxiliary sleeve 40, when inserting the pipe (P) into the gasket 30, the wound of the foreign matter (BUR) of the cut surface of the pipe (P) Can easily work without it. Before the housing 10 is fastened by the bolt 20, the gasket 30 and the pipe P are placed in a loose state, and at this time, the auxiliary sleeve 40 between the gasket 30 and the pipe P After placing ), the housing 10 is tightened through the tightening of the bolt portion 20, and then the auxiliary sleeve 40 is pulled out. Through this operation, the auxiliary sleeve 40 can facilitate the operation when the pipe P is inserted into the gasket 30.

The first opening 44 may have an opening formed in the longitudinal direction in the first portion 41.

A plurality of first openings 44 are spaced apart at predetermined intervals in the circumferential direction, and may have a straight line shape or a dotted line shape.

The second opening 45 may have an opening formed in the longitudinal direction through the first portion 41 to the second portion 42.

The second opening 45 may have a form passing through the first portion 41 and passing through the second portion 42.

The first opening 44 and the second opening 45 have an effect of allowing the auxiliary sleeve 40 to be easily removed from the pipe P.

The auxiliary sleeve 40 is inserted into the gasket 30 together with the pipe P to advance, and passes through the gasket 30 while passing over the first protrusion 321 of the gasket 30 to the housing 10. It can be inserted beyond one end.

Through this, in the present invention, when the pipe P is inserted into the gasket 30 through the auxiliary sleeve 40, there is an effect of facilitating the operation of the pipe P without cutting the foreign matter BUR on the cut surface.

The auxiliary sleeve 40 may be formed of a PVC thin plate material.

As such, the gasket 30 and the joint device 1 including the gasket 30 according to an embodiment of the present invention have an effect of having excellent sealing force and easy detachment.

The present invention has been described in detail through specific examples, but it is for the purpose of specifically describing the present invention, and the present invention is not limited to this, and by those skilled in the art within the technical spirit of the present invention. It will be apparent that the modification or improvement is possible.

All simple modifications or changes of the present invention belong to the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

1: Joint device
10: housing (10) 11: upper body
12: lower body 111: insert
112: coupling jaw
20: bolt part 21: bolt
22: Nut
30: gasket (first and second gasket) 31: first body portion
311: outer convex portion 312: inner convex portion
313: wing 314: outer recess
315: Receptacle 32: second body portion
32a: front body 32b: rear body
321: first projection 322: second projection
33: connection portion 33a: front connection portion
33b: rear connection portion 331: groove portion
40: auxiliary sleeve 41: first part
42: part 2 43: part 3
44: first opening 45: second opening
R: circle diameter R1: first gap
R2: Second gap P: Pipe

Claims (16)

In the elliptical gasket having elasticity to prevent leakage of fluid at the connection portion of the housing of the pipe and the joint device,
It has a cross-sectional shape of an ellipse having a first distance with a minimum distance between left and right lengths and a second distance with a maximum distance between top and bottom lengths,
The first interval,
With respect to the center of the garden having the four contact points with the ellipse, it has a length reduced by 1% to 5% from the diameter of the garden,
The second interval,
1% to 5% longer than the diameter of the garden,
The elliptical gasket,
Located on the outer periphery, including a first body portion extending from one end to the other to have a predetermined length in the longitudinal direction,
The first body portion,
In the central portion in the longitudinal direction, an inward recess is formed on the outer side,
The housing,
Oval gasket, characterized in that it further comprises an insert that protrudes from the inner surface, and is formed to be inserted into the receiving port.
According to claim 1, wherein the elliptical gasket,
A first body portion located on the outer side and extending from one end to the other to have a predetermined length in the longitudinal direction;
Located in the inner periphery, the front body extending in the direction from the one end of the first body portion toward the other end in the longitudinal direction and the rear body extending in the direction toward the one end from the other end of the first body portion in the longitudinal direction. A second body portion including; And
To form an inner space between the first body portion and the second body portion, one end portion of the first body portion and a front connection portion connecting the front body of the second body portion and the other end portion of the first body portion and the agent 2 includes a connection portion including a rear connection portion for connecting the rear body portion of the body portion,
The first body portion,
The cross section has the shape of an ellipse whose left and right lengths are the first gap and the lengths above and below the second gap,
The second body portion,
Gasket characterized in that the cross section has the shape of a circle having a center and concentricity with the ellipse of the first body portion and the garden having four contacts, but having a length smaller than the first gap.
According to claim 2, The first body portion,
Oval gasket characterized in that the outer convex portion protruding in the outer direction on the outside from the central portion in the longitudinal direction is formed.
The outer convex portion of claim 3,
Oval gasket, characterized in that a plurality of spaced apart at predetermined intervals on the circumference of the cross section.
The method of claim 4, wherein the first body portion,
Oval gasket, characterized in that the outer concave portion recessed in the inner direction on the outer side in the central portion in the longitudinal direction is formed.
The method of claim 5, wherein the outer recess,
Oval gasket, characterized in that a plurality of spaced apart at predetermined intervals on the circumference of the cross section.
According to claim 2, The first body portion,
Oval gasket, characterized in that the inner convex portion protruding in the inner direction on the inner side in the central portion of the longitudinal direction is formed.
The method of claim 7, wherein the inner convex portion,
Oval gasket characterized in that it comprises a wing portion protruding to be located in the inner periphery more than the second body portion in the inner direction.
The method of claim 7, wherein each of the front body and the rear body of the second body portion,
And a first protrusion protruding in a direction opposite to the first body part,
The first protrusion,
Oval gasket characterized in that it is formed to have a protrusion length smaller than the thickness of the pipe defined between the outer diameter and the inner diameter of the pipe.
10. The method of claim 9, Each of the front body and the rear body of the second body portion,
Further comprising a second protrusion protruding toward the first body portion,
The second protrusion,
The elliptical gasket, characterized in that to form pressure in the inner space by forming the inner space in contact with the inner convex portion.
A hollow-shaped housing that surrounds the outer circumference of the pipe inserted at both ends to join the pipe; And
A joint device comprising the elliptical gasket according to claim 1.
The method of claim 11,
When the pipe is inserted into the housing, further comprising an auxiliary sleeve for protecting the oval gasket and guiding the pipe,
The auxiliary sleeve,
The joint device, characterized in that the cross section has the shape of a hollow circle, and one end is inclined to extend outwardly from the center of the auxiliary sleeve.
The method of claim 12, wherein the auxiliary sleeve,
A first portion formed to have a predetermined length in the longitudinal direction;
A second portion extending from an end of the first portion in an inclined direction outwardly from the center of the auxiliary sleeve; And
The first portion includes a first opening in which an opening is formed in the longitudinal direction,
The first opening,
A joint device characterized by having a plurality of spaced apart predetermined distances in the circumferential direction and having a straight line shape or a dotted line shape.
The method of claim 13,
And a third portion extending from an end of the second portion in an inclined direction outwardly from the center of the auxiliary sleeve,
The third part,
The second portion of the second sleeve is inclined in the direction outwardly from the center of the auxiliary sleeve, at an angle greater than the angle of the second partial inclination in the direction away from the center, characterized in that the extension extending Joint device.
The method of claim 14,
And a second opening in which an opening is formed in the longitudinal direction through the first portion to the second portion,
The second opening,
A joint device characterized in that it has a shape penetrating the second portion through the first portion.


delete

Images