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KR-102961848-B1 - A groove joint

KR102961848B1KR 102961848 B1KR102961848 B1KR 102961848B1KR-102961848-B1

Abstract

A groove joint according to one embodiment of the present invention relates to a groove joint connecting a pair of different pipes having a groove of a predetermined thickness formed along an outer surface, wherein the groove joint comprises: a housing including an upper housing and a lower housing, the upper housing being formed in a semicircular shape and having an insertion groove formed on the inner side and a fastening portion formed at the front and rear ends for receiving the fastening member; a sealing member being formed in a ring shape and inserted into the insertion groove of the upper housing and the lower housing for sealing between pipes; and a fastening member provided to fasten the upper housing and the lower housing.

Inventors

  • 김강민

Assignees

  • (주)앤디스티앤지

Dates

Publication Date
20260507
Application Date
20240220

Claims (10)

  1. The invention relates to a groove joint connecting a pair of different pipes in which a groove of a predetermined thickness is formed along the outer surface. The above groove joint is, A housing (100) comprising an upper housing (110) and a lower housing (120) that are formed in a semicircular shape, have an insertion groove formed on the inner side, and have a fastening portion protruding from the front and rear ends; A sealing member (200) formed in a ring shape and inserted into the insertion groove of the upper housing (110) and lower housing (120) for sealing between pipe (1) and pipe (2); and It includes a fastening member (300) provided to fasten the upper housing (110) and the lower housing. The upper housing (110) above is, It includes an upper step portion (111) that is formed along one side inner diameter of the upper housing (110) and protrudes downward, while protruding to be received in the groove of the pipe. The lower housing (120) above is, It includes a lower step portion (121) that is formed along one side inner diameter of the lower housing (120) and protrudes upward, while protruding to be received in the groove of the pipe. The upper stepped portion (111) above is, It is formed to extend more than half the circumference of a virtual circle at the center, which is equal to the inner diameter of one side of the upper housing (110), and It includes a first protruding step (111a) formed to wrap around more than half of the groove circumference of one of the selected pipes in a pair of pipes, and The lower step portion (121) above is, It is formed to extend more than half the circumference of a virtual circle at the center, which is equal to the inner diameter of one side of the lower housing (120), and It includes a second protruding step (121a) formed to wrap around more than half of the groove circumference of the other selected pipe among the pair of pipes; and The upper stepped portion (111) above is, It is formed to protrude downward by less than half the circumference of a virtual circle at the center, which is the same as the inner diameter of the other side of the upper housing (110), and It is formed to wrap around less than half the perimeter of the groove of the other selected pipe among a pair of pipes, and It includes a first receiving step (111b) formed to accommodate a portion of the second protruding step (121a); and The lower step portion (121) above is, It is formed to protrude upward by less than half the circumference of a virtual circle at the center, which is the same as the inner diameter of the other side of the lower housing (120), and It is formed to wrap around less than half of the perimeter of the groove of any one of the selected pipes in a pair of pipes, and It includes a second receiving step (121b) formed to accommodate a portion of the first protruding step (111a); The above housing (100) is, It further includes a guide portion (130) formed adjacent to the above-mentioned fastening portion and formed on the upper housing and the lower housing to prevent twisting when the upper housing (110) and the lower housing (120) are fastened together. The above guide part (130) is, An inclined protrusion (131) formed at the front or rear of the housing (100), protruding toward an adjacent housing, and having an inclined surface; and A groove joint characterized by including an inclined receiving portion (132) formed at the rear or front of the housing (100) to accommodate the inclined protrusion (131), and having an inclined surface formed with a shape corresponding to the inclined surface of the inclined protrusion (131).
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  5. In Article 1, The above housing (100) is, A groove joint characterized by further including a wedge-shaped fastening force reinforcing part (112, 122) formed on the upper housing and the lower housing, respectively, to improve the fastening force between the housing and the pipe when the housing is fastened, and extending toward the insertion groove from an upper stepped portion protruding from the upper housing and a lower stepped portion protruding from the lower housing.
  6. In Article 5, The above fastening force reinforcing part (112, 122) is, A groove joint characterized by having at least one groove formed along the inner diameter of the housing, wherein the end of the insertion groove side is formed to have a shape that gradually narrows.
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  9. In Article 1, The above groove joint is, It further includes a verification member (400) for verifying the fastening state of the above-mentioned fastening member (300), and The above verification member (400) is, A main body (410) having a through hole (411) through which the above-mentioned fastening member (300) passes and a cutting blade (412) formed therein; and A groove joint characterized by including a breaking portion (420) formed to be detachably attached to the main body portion (410) and broken by the operation of the fastening member (300).
  10. In Article 1, The sealing member (200) above is, A diaphragm portion (210) that is closely supported at the end of the above pipe; An outer part (220) formed by being bent at the upper part of the above diaphragm part (210) and having a contact surface to be in close contact with the outer circumference of the pipe; A groove joint characterized by including an inner portion (230) that is formed by being bent at the lower part of the diaphragm portion (210) and has a contact surface to be in close contact with the inner circumference of the pipe.

Description

Groove joint The present invention relates to a groove joint, and more specifically, to a groove joint that allows pipes to be connected more easily and improves fastening force by expanding the connection point between the housing constituting the groove joint and the pipe. In general, groove joints for connecting pipes are widely used across various industries, including piping systems for industrial facilities and building structures. These groove joints must be secured by tightly tightening bolts and nuts so that the connection between pipes does not separate even if the pipes are subjected to impact or fluctuate due to pressure changes of the fluid flowing inside, and they must be sealed to prevent fluid or gas leakage through the gaps between the pipe ends. In other words, a conventional groove joint generally comprises an upper housing and a lower housing provided to surround a pipe, a sealing member installed between the upper housing and the lower housing, and a fastening member for connecting the upper housing and the lower housing to each other. At this time, the sealing member is in close contact with the pipe connection part to maintain airtightness. However, when connecting the upper housing and the lower housing using a fastening member, if the connection is not made completely, there was a problem where leakage occurred due to damage to the sealing member caused by shaking or twisting of the groove joint. In addition, when the groove joint and the pipe are joined, the connection with the pipe may not proceed properly, resulting in play; furthermore, there was also a problem regarding the reduced sealing performance due to the reduced bonding strength caused by the play. FIG. 1 is a front view illustrating a groove joint according to one embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a cross-section of a groove joint according to one embodiment of the present invention. FIG. 3 is an exploded view showing the disassembled state of a groove joint according to one embodiment of the present invention from the side. FIG. 4 is an exploded view showing the disassembled state of another groove joint in one embodiment of the present invention from the front. FIG. 5 is an exploded perspective view showing the disassembled state of the fastening member and the verification member constituting the groove joint according to one embodiment of the present invention. FIG. 6 is a drawing showing the inner side of a housing constituting a groove joint according to an additional embodiment of the present invention. FIG. 7 is a front view of a housing constituting a groove joint according to an additional embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms, and these embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Furthermore, the terms used in this specification are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, "comprises" and/or "comprising" do not exclude the presence or addition of other components other than those mentioned. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention belongs. First, with reference to FIGS. 1 to 5, an embodiment of the present invention will be described in more detail. FIG. 1 is a front view illustrating a groove joint according to one embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating a cross-section of a groove joint according to one embodiment of the present invention, FIG. 3 is an exploded view illustrating a disassembled state of a groove joint according to one embodiment of the present invention from the side, FIG. 4 is an exploded view illustrating a disassembled state of a groove joint according to one embodiment of the present invention from the front, and FIG. 5 is an exploded perspective view illustrating a disassembled state of a fastening member and a verification member constituting a groove joint according to one embodiment of the present invention. A groove joint according to embodiments of the present invention is provided to connect a pair of different pipes in which a groove of a predetermined thickness is formed along the outer surface. More specifica