WO2017003023A1 - Pipe connection device - Google Patents

Pipe connection device Download PDF

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Publication number
WO2017003023A1
WO2017003023A1 PCT/KR2015/009756 KR2015009756W WO2017003023A1 WO 2017003023 A1 WO2017003023 A1 WO 2017003023A1 KR 2015009756 W KR2015009756 W KR 2015009756W WO 2017003023 A1 WO2017003023 A1 WO 2017003023A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
ring
tightening member
insertion hole
cap nut
Prior art date
Application number
PCT/KR2015/009756
Other languages
French (fr)
Korean (ko)
Inventor
임채갑
Original Assignee
임채갑
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 임채갑 filed Critical 임채갑
Publication of WO2017003023A1 publication Critical patent/WO2017003023A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
    • F16L19/086—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping with additional sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/10—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
    • F16L19/12—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered with additional sealing means

Definitions

  • the present invention relates to a pipe connecting device for joining a pipe provided as a flow passage such as a fluid, and more particularly, a pipe connecting device capable of easily and firmly performing pipe connection as well as completely preventing leakage of fluid. It is about.
  • a pipe In order to supply fluids, such as tap water and a gas, the inside of the hollow flow pipe called a pipe is employ
  • a valve or the like for opening and closing the flow of the fluid is employed.
  • Appropriate pipe connecting devices are adopted at the site of connecting pipes and pipes or connecting pipes and valves.
  • the pipe connecting device is required to have a structure that can easily execute the pipe connection, while preventing the leakage of fluid that may occur at the connection site, and also reliably prevent the pipe from being inappropriately released from the pipe connection.
  • Tightening member is to reduce the inner diameter when tightening the pipe to tighten the outer peripheral surface of the pipe to prevent the pipe from being separated from the tightening member.
  • FIG. 1 is an exploded perspective view of a pipe connecting device according to the prior art
  • Figure 2 is a cross-sectional view of the main portion.
  • the pipe connecting device comprises a connecting socket 1, a fastening member 7 and a fastening nut 6.
  • the connection socket 1 has a first screw part 2 for fastening the first pipe 9 to one side, and an inner connection pipe 4 and a pipe insertion groove 5 on the other side, and a tightening nut.
  • (6) is provided with a second screw portion (3).
  • the tightening member 7 is formed in a ring shape and is provided with a cutout 8, and a protrusion 7a is provided on the inner circumferential surface thereof.
  • the second pipe 10 is inserted into the pipe insertion groove 5 of the connecting socket 1 through the inside of the fastening nut 6 and the fastening member 7, and then the fastening nut 6 is inserted into the second threaded portion 3. ) Is fastened.
  • the inclined surfaces 5a and 6a are provided in the outer edge portion of the pipe insertion groove 5 and the inside of the tightening nut 6, respectively.
  • the fastening member 7 is compressed inward according to the fastening strength thereof, so that the tightness of the fastening member 7 to the second pipe 10 is strong.
  • the projection 7a provided on the inner surface of the tightening member 7 penetrates into the outer circumferential surface of the second pipe 10, thereby further increasing the adhesion between the tightening member 7 and the second pipe 10. The improper detachment of the two pipe 10 from the tightening member 7, ie the connecting socket 1, is prevented.
  • Utility Model Registration No. 20-0120330 (name: one-touch insertion tube) discloses a fastening member which is formed in a ring shape and has a plurality of grooves formed at both ends thereof.
  • FIG. 3 is a partial cross-sectional exploded view of the tube connector according to the prior art
  • Figure 4 is a perspective view showing the appearance of the tightening member 40 in FIG. 5 is sectional drawing which showed the principal part cross section structure at the time of fastening a pipe to a pipe connector.
  • the pipe connector is configured with a socket body 20, a cap nut 30 and a fastening member 40.
  • the socket main body 20 is provided with a screw connection portion 20a screwed to a pipe connection hole such as an L type or a T type, and a screw connection portion 20b to which the cap nut 30 is screwed, and the screw connection portion 20b is provided.
  • the pipe 50 is inserted into the insertion hole provided through the cap nut 30 and the tightening member 40.
  • the tightening member 40 is configured in a wide ring shape.
  • the outer circumferential surface of the tightening member 40 is formed with inclined surfaces 40b and 40c which are inclined toward the center side toward both ends from the center portion 40a as a starting point, and a plurality of grooves 41 and 42 are formed at both ends.
  • the O-ring groove 43 is formed on the inner circumferential surface.
  • the inclined surfaces 21 and 31 are provided in the pipe insertion hole of the socket main body 20 and the inside of the cap nut 30 corresponding to the inclined surfaces 40b and 40c of the fastening member 40. Therefore, when the cap nut 30 is fastened to the screw connection portion 20b in a state where the fastening member 40 is disposed between the socket body 20 and the cap nut 30, the inclined surfaces 21 and 31 according to the fastening strength thereof. ) Presses the tightening member 40 in the inward direction while slidingly sliding along the inclined surfaces 40b and 40c of the tightening member 40. Accordingly, the fastening member 40 is pressed inwardly and in close contact with the pipe 50 disposed therein at a predetermined pressure or more to prevent the pipe 50 from being inappropriately separated from the socket body 20.
  • the fluid flowing through the pipes 9 and 10 leaks to the outside through the fastening portion of the first pipe 9 and the first threaded portion 2, After leaking to the inside of the tightening nut 6 through the contact surface between the pipe insertion groove 5 and the second pipe 10 and the contact surface between the tightening member 7 and the inclined surface 5a, the tightening member 7 and the inclined surface again. Through the contact surface between 6a and the fastening part of the 2nd screw part 3 and the fastening nut 6, it can leak out.
  • the fluid flowing through the pipe 50 is connected to the contact surface between the inclined surface 21 of the socket body 20 and the inclined surface 40b of the fastening member 40, and the cap nut.
  • the contact surface between the 30 and the pipe 50 and the fastening portion of the cap nut 30 and the screw connection portion 20b can be leaked to the outside.
  • the coupling force of the pipe to the pipe connecting device is determined by the frictional force between the fastening members 7 and 40 and the pipes 10 and 50.
  • the tightening members 7 and 40 and the pipes 10 and 50 which are usually made of metal, are in contact with each other, there is a limit to increasing the friction force by a predetermined level or more within a limited contact area.
  • the tightening force of the fastening member 7.40 that is, the fastening force between the fastening nut 6 and the cap nut 30 must be increased to a predetermined level or more, thereby reducing the work efficiency of the pipe connecting device. There is a problem.
  • the present invention has been made in view of the above circumstances, and provides a pipe connecting device capable of reliably preventing a leakage problem of fluid that may occur at the connection site by improving the sealing force between the pipe connecting device and the pipe.
  • a pipe connecting device capable of reliably preventing a leakage problem of fluid that may occur at the connection site by improving the sealing force between the pipe connecting device and the pipe.
  • the pipe hooking device for realizing the above object is coupled to a pipe for flowing fluid, or in a pipe connecting device for coupling the pipe and the pipe, the body is provided with an insertion hole is inserted And a cap having a fastening member inserted into the insertion hole and having a first through hole for inserting a pipe into the center portion, and a second through hole fastened to the insertion hole of the main body and inserted into the center portion.
  • the inner peripheral surface of the insertion hole of the main body is formed with a tapered portion of the inner diameter is monotonously reduced from the inlet side of the insertion hole
  • the tightening member is provided with an inclined surface and stepped portion on the outer peripheral surface, the inclined surface is tightened
  • the outer diameter of the member is formed to increase monotonously from one end to the other end
  • At least two incision grooves are formed in the inclined surface along the longitudinal direction
  • the cap nut is configured to press the fastening member toward the inside of the insertion hole when the cap nut is fastened to the main body.
  • FIG. 1 is an exploded perspective view of a pipe connecting device according to the prior art.
  • FIG. 2 is a sectional view of principal parts of the pipe connecting device shown in FIG. 1;
  • FIG. 3 is a partial cross-sectional exploded view of a tube connector according to the prior art
  • FIG. 4 is a perspective view showing an appearance of the tightening member 40 in FIG. 3.
  • 5 is a sectional view of principal parts when the pipe is fastened to the pipe connector.
  • FIG. 6 is an exploded perspective view of a pipe connecting apparatus according to the first embodiment of the present invention.
  • FIG. 7 is a cross-sectional perspective view of FIG. 6.
  • FIG. 8 is a cross-sectional view of FIG. 6.
  • FIG. 9 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
  • FIG. 10 is an exploded cross-sectional view according to a first modification of the first embodiment.
  • FIG. 11 is a cross-sectional view of a pipe coupled to the pipe connecting device in FIG.
  • FIG. 12 is an exploded partial view of the pipe connecting apparatus according to the second embodiment of the present invention.
  • FIG. 13 is an exploded cross-sectional view corresponding to FIG. 12.
  • FIG. 14 is a partial cross-sectional perspective view of the tightening member 220 in FIG. 12.
  • FIG. 15 is a partial cross-sectional perspective view of the pressing member 230 in FIG. 12.
  • 16 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
  • FIG. 17 is an exploded partial cross-sectional view of a pipe connecting apparatus according to a third embodiment of the present invention.
  • FIG. 18 is a partial cross-sectional perspective view of the tightening member 320 in FIG. 17.
  • 19 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
  • FIG. 20 is a partial cross-sectional exploded view of a pipe connecting apparatus according to the fourth embodiment of the present invention.
  • FIG. 21 is a partial cross-sectional perspective view of the tightening member 420 in FIG. 20.
  • 22 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
  • the pipe hooking device for realizing the above object is coupled to a pipe for flowing fluid, or in a pipe connecting device for coupling the pipe and the pipe, the body is provided with an insertion hole is inserted And a cap having a fastening member inserted into the insertion hole and having a first through hole for inserting a pipe into the center portion, and a second through hole fastened to the insertion hole of the main body and inserted into the center portion.
  • the inner peripheral surface of the insertion hole of the main body is formed with a tapered portion of the inner diameter is monotonously reduced from the inlet side of the insertion hole
  • the tightening member is provided with an inclined surface and stepped portion on the outer peripheral surface, the inclined surface is tightened
  • the outer diameter of the member is formed to increase monotonously from one end to the other end
  • At least two incision grooves are formed in the inclined surface along the longitudinal direction
  • the cap nut is configured to press the fastening member toward the inside of the insertion hole when the cap nut is fastened to the main body.
  • the inner circumferential surface of the insertion hole is provided with first and second O-rings on both sides of the tapered portion, and the second O-ring is positioned outside the cutting groove when the fastening member is inserted into the insertion hole.
  • a third O-ring is provided on the inner circumferential surface of the through hole corresponding to the stepped portion of the tightening member.
  • a fourth O-ring is provided on the inner circumferential surface of the through hole of the cap nut.
  • the cutting groove is characterized in that it is formed inclined with respect to the longitudinal direction of the pipe.
  • the inner peripheral surface of the through hole corresponding to the inclined surface of the tightening member is characterized in that the stopper is further formed.
  • the pressing ring is further provided between the tightening member and the cap nut
  • the tightening member is further provided with a first coupling hole for communicating the pressing ring with the third O-ring in the coupling direction with the cap nut
  • the cap nut is further provided with a second coupling hole for communicating the pressure ring with the fourth O-ring in the direction of engagement with the tightening member.
  • the pipe connecting device is coupled to a pipe for flowing a fluid, or in a pipe connecting device for coupling a pipe and a pipe, the main body is provided with an insertion hole into which the pipe is inserted, and has a ring shape In addition, a cutout portion is provided at an intermediate portion, a fastening member disposed between the inner circumferential surface of the insertion hole and the outer circumferential surface of the pipe, a first through hole into which the pipe is inserted in the central portion, and a pressure disposed between the tightening member and the cap nut.
  • a cap nut having a second through hole through which the member is fastened to the insertion hole of the main body and into which the pipe is inserted into the center portion, wherein the main body corresponds to a first inclined surface of the tightening member on the inner circumferential surface of the insertion hole. It is provided with an inclined portion, the tightening member in the inward direction toward both ends relative to the center portion on the outer peripheral surface Extremities of the first and second, and having a second inclined surface, wherein the pressing member is characterized in that it comprises a second front end inclined portion corresponding to the second inclined surface.
  • the inner peripheral surface of the tightening member is characterized in that the stopper is formed.
  • the inner peripheral surface of the tightening member is characterized in that the groove is further formed along the arc direction.
  • a first O-ring is installed on the outer circumferential surface of the pressing member.
  • a second O-ring is installed on the inner circumferential surface of the second through hole.
  • a first stepped portion is formed at a rear end of the first O-ring, and a first pressing protrusion for pressing the first O-ring through the first stepped portion is further provided at the front end of the cap nut.
  • a second stepped portion is formed at the front end of the second o-ring, and a second pressing protrusion for pressing the second o-ring through the second stepped portion is further provided at the rear end of the pressing member.
  • the pipe connecting device is coupled to a pipe for flowing a fluid, or in a pipe connecting device for coupling a pipe and a pipe, a main body provided with an insertion hole into which the pipe is inserted, and a pipe in a central portion thereof.
  • a cap nut provided with a first through hole into which is inserted a fastening member disposed between an inner circumferential surface of the insertion hole and an outer circumferential surface of the pipe, and a second through hole which is fastened to the insertion hole of the main body and into which the pipe is inserted into the center portion.
  • the main body is provided with a stepped portion for blocking the entry of the tightening member inside the insertion hole
  • the tightening member is provided with an inclined surface inclined in the inward direction in the front end portion
  • the groove is formed in the circumferential direction on the front end portion It is characterized by.
  • a first O-ring is installed on the outer circumferential surface of the tightening member.
  • a second O-ring is installed on the inner circumferential surface of the second through hole.
  • a first stepped portion is formed at a rear end of the first O-ring, and a first pressing protrusion for pressing the first O-ring through the first stepped portion is further provided at the front end of the cap nut.
  • a second stepped portion is formed at the front end of the second O-ring, and a second pressing protrusion for pressing the second O-ring through the second stepped portion is further provided at the rear end of the fastening member.
  • the meaning of the pipe connecting device in the present specification is any pipe connection including T-shaped, L-shaped and cross-shaped, etc. used for the pipe connection, additionally employed in the connection between the pipe connection and the pipe or may be employed in the connection between the pipes.
  • the pipe connection device of the present invention includes an integral mechanism and structure that can be employed for the joining of pipes.
  • FIGS. 6 to 9 are views showing the structure of a pipe connecting apparatus according to the first embodiment of the present invention
  • Figure 6 is an exploded perspective view of the pipe connecting device
  • Figure 7 is an exploded cross-sectional perspective view
  • Figure 8 is an exploded cross-sectional view
  • Figure 9 Is a cross-sectional view with the pipe connected to the pipe connecting device.
  • the present embodiment shows a case in which the present invention is applied to the T-shaped pipe connector which is configured to be in communication with each other internally while the three insertion ports are provided with the pipe 100 is shown as an example.
  • each pipe connection structure for the three pipe insertion holes is substantially the same, only a connection structure for one pipe insertion hole will be described in detail.
  • the pipe connecting device includes a main body 110, a fastening member 120, and a cap nut 130.
  • the main body 110 has a threaded portion 111 formed on the outer circumferential surface of the insertion hole into which the pipe 100 is inserted, and a tapered portion 112 is formed on the inner circumferential surface of the insertion hole.
  • the taper portion 112 has a shape in which the inner diameter monotonously decreases toward the inner side from the inlet side of the insertion port.
  • O-rings 113 and 114 are provided at both sides of the tapered portion 112 at the inner circumferential surface of the insertion hole.
  • the O-ring grooves are preferably provided at the installation positions of the O-rings 113 and 114.
  • O-ring 113 is installed on the inner peripheral surface of the tapered portion 112 in the pipe insertion hole
  • O-ring 114 is installed on the inclined surface of the tapered portion 112, preferably the position of the inner diameter of the tapered portion 112 is the largest do.
  • the O-ring 113 prevents fluid flowing through the pipe 100 from leaking to the outside through between the inner circumferential surface of the body 110 and the outer circumferential surface of the pipe 100. It is to.
  • the o-ring 114 is to more reliably ensure the sealing force between the body 110 and the pipe 100.
  • the o-ring 114 is intended to prevent the fluid from leaking out through the inner circumferential surface of the body 110 and the outer circumferential surface of the fastening member 120 to be described later, even if the fluid leaks through the o-ring 113.
  • the tightening member 120 is made of, for example, spring steel having high strength and high elasticity. Tightening member 120 is provided with a through hole 121 is inserted into the pipe in the center portion, the inclined surface 122 and the stepped portion 123 is formed on the outer peripheral surface.
  • the inclined surface 122 corresponds to the taper portion 112 of the main body 110, and the inclined surface 122 is configured to gradually widen in diameter toward the rear end from a portion that is first inserted into the front end portion, that is, the insertion hole of the main body 110.
  • two or more incision grooves 122a are preferably formed.
  • the incision groove 122a extends along the longitudinal direction of the inclined surface 122.
  • the incision groove 122a is more easily inwardly inclined by the rotation of the fastening member 120. It is formed to have a constant angle of inclination with respect to the longitudinal direction.
  • the incision groove 122a is formed while extending as much as possible along the longitudinal direction of the inclined surface 122 so that the pipe 100 inserted through the inner through hole 121 can be tightened more easily and easily.
  • the stepped portion 123 prevents the fastening member 120 from being inserted into the insertion hole of the main body 110 more than a predetermined time, and the fastening member 120 has a through hole 132 of the cap nut 130 to be described later. This is to prevent the departure from the outside.
  • a saw-shaped stopper 124 is formed on the inner circumferential surface corresponding to the inclined surface 122, and an O-ring 126 is provided on the inner circumferential surface corresponding to the stepped portion 123.
  • the installation position of the O-ring 126 is preferably provided with an O-ring groove.
  • the stopper 124 is formed between the tightening member 120 and the pipe 100 by the teeth of the stopper 124 strongly pressing or digging the outer circumferential surface of the pipe 100 when the inclined surface 122 is compressed inward. To increase the adhesion of the.
  • the O-ring 126 is to more reliably prevent the fluid from leaking to the outside through the inner circumferential surface of the tightening member 120 and the outer circumferential surface of the pipe 100.
  • the cap nut 130 is for fastening the tightening member 120 to the inside of the insertion hole of the main body 110.
  • One side inner circumferential surface of the cap nut 130 is formed with a threaded portion 131 for fastening the cap nut 130 to the threaded portion 111 of the main body 110, and a through-hole 132 inserted into the other side while the pipe 100 is penetrated. ) Is provided.
  • the O-ring 133 is selectively provided on the inner circumferential surface of the through hole 132. Also in this case, the O-ring groove is preferably formed at the installation position of the O-ring 133. The o-ring 132 is for more reliably preventing the fluid from leaking through the cap nut 130 and the pipe 100.
  • the tip end side of the threaded portion 131 of the cap nut 130 is disposed in the cap nut 130 in the main body 110.
  • the pipe 100 is inserted through the through holes 132 and 121 of the cap nut 130 and the fastening member 120. Insertion of the pipe 100 is performed until the leading end of the pipe 100 reaches the O-ring 113 position of the body 110. Thereafter, the cap nut 130 is tightened to firmly fasten the cap nut 130 to the threaded portion 111 of the main body 110.
  • the inclined surface 122 of the fastening member 120 slides along the tapered part 112 of the main body 110 while the cap nut 130 is fastened.
  • the inclined surface 122 is pressed inward, that is, in the direction of the outer circumferential surface of the pipe 100.
  • the tightening member 40 has a wide ring shape, and grooves 41 and 42 are formed at both ends.
  • the grooves 41 and 42 consider that the inner diameter of the tightening member 40 should be reduced.
  • the recesses 41 and 42 are formed only at both ends of the tightening member 40, when the inner diameter of the tightening member 40 is reduced by using an external force, the inner diameter of the central portion 40a is structurally maintained as it is. Only the inner diameter of the end will be reduced. And to this end, the entire twisting phenomenon should be generated in the tightening member 40.
  • the conventional tightening member 40 is required to compress the tightening member 40 in the inward direction while twisting the tightening member 40 as a whole in order to reduce the inner diameter is required a very large tightening force when compressing the tightening member 40. That is, a large force is required to fasten the cap nut 30 to the screw connection part 20b. And this will not only reduce the work efficiency of the operator but also acts as a factor to lower the coupling force between the tightening member 40 and the pipe.
  • the inclined surface 122 of the tightening member 120 is formed to be inclined in one direction as a whole, and the incision grooves 122a are formed as a whole along the inclined surface 122. Therefore, when compressing the inclined surface 122 inward direction, no particularly large external force is required.
  • the incision groove 122a is formed to have a constant inclination angle with respect to the longitudinal direction, the inclined surface 122 can be more easily and tightly compressed inwardly in accordance with the rotation of the tightening member 120.
  • the stopper 124 installed on the inner circumferential surface of the inclined surface 122 strongly compresses the outer circumferential surface of the pipe 100 while the inclined surface 122 is compressed inwardly, so that the fastening member 120 and the pipe 100 are very strongly coupled. Will be.
  • the O-ring 113 is installed inside the insertion hole of the main body 110, the fluid flowing through the pipe 100 leaks to the outside through the coupling surface between the pipe 100 and the main body 110. Is blocked.
  • the O-ring 114 is formed on the tapered portion 112 of the main body 110.
  • the taper part 112 applies a tightening force in the inward direction by pressing the inclined surface 122 of the tightening member 120 when the cap nut 130 is fastened. Therefore, the O-ring 144 is pressed against the outer circumferential surface of the tightening member 120 as much as possible when the taper 112 presses the tightening member 120, and thus the fluid may be leaked through the O-ring 113. Compression to the outside through the inner circumferential surface of the main body 110 and the outer circumferential surface of the tightening member 120 is completely blocked.
  • the O-rings 126 and 133 are installed on the inner circumferential surface of the tightening member 120 and the inner circumferential surface of the cap nut 130, respectively, even if the fluid leaks through the O-ring 113, the fluid is pipe 100. Outflow through the outer circumferential surface and the inner circumferential surface of the tightening member 120 and the cap nut 130 is completely blocked.
  • FIG. 10 and 11 are views showing the structure of a pipe connecting apparatus according to a modified embodiment of the first embodiment described above, FIG. 10 is an exploded cross-sectional view of the pipe connecting apparatus, and FIG. 11 is a state in which a pipe is coupled to the pipe connecting apparatus. It is a cross section.
  • the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
  • the pressing ring 140 is provided between the tightening member 120 and the cap nut 130.
  • the fastening member 120 is provided with a first coupling hole 121a for coupling the pressing ring 140 to communicate with the O-ring 126 in the coupling direction with the cap nut 130, the cap nut 130 is provided
  • a second coupling hole 132a for coupling the pressing ring 140 to communicate with the O-ring 133 in the coupling direction with the tightening member 120 is provided.
  • the pressing ring 140 when the fastening member 120 and the cap nut 130 are fastened to the main body 110, the pressing ring 140 is disposed between the fastening member 120 and the cap nut 130.
  • the pressing ring 140 is seated in the first and second coupling holes 121a and 132a of the tightening member 120 and the cap nut 130.
  • the pressing ring 140 is set to a width such that when the tightening member 120 and the cap nut 130 are fastened to the main body 110, the pressing rings 140 can sufficiently press the O-rings 126 and 133.
  • the O-rings 126 and 133 When the pressing ring 140 presses the O-rings 126 and 133 in the horizontal direction, the O-rings 126 and 133 extend in the vertical direction, that is, the inward direction, and the inner diameter thereof is narrowed. Therefore, in this embodiment, the adhesion between the O-rings 126 and 133 and the pipe 100 is greatly increased, thereby further improving the airtight force between the inner circumferential surface of the tightening member 120 and the cap nut 130 and the outer circumferential surface of the pipe 100. Will be.
  • FIG. 12 to 16 is a view showing the structure of a pipe connecting apparatus according to a second embodiment of the present invention
  • Figure 12 is a partial cross-sectional exploded perspective view of the pipe connecting device
  • Figure 13 is an exploded cross-sectional view corresponding to Figure 12
  • Figure 14 12 is a partial cross-sectional perspective view showing an appearance of the tightening member 220 in FIG. 12
  • FIG. 15 is a partial cross-sectional perspective view of the pressing member 230 in FIG. 12
  • FIG. 16 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
  • the present embodiment shows a case in which the present invention is applied to the T-shaped pipe connector which is configured to be in communication with each other internally while the three insertion ports are provided with the pipe 100 is shown as an example.
  • each pipe connection structure for the three pipe insertion holes is substantially the same, only a connection structure for one pipe insertion hole will be described in detail.
  • the pipe connecting device includes a main body 210, a fastening member 220, a pressing member 230, and a cap nut 240.
  • the body 210 has at least one insertion hole 211 for inserting the pipe 100.
  • the inner circumferential surface of the insertion hole 211 is provided with a first inclined portion 212 for pressing the tightening member 220 to be described later inward, that is, the outer circumferential surface direction of the pipe 100, the inlet of the insertion hole 211 ?
  • P inner peripheral surface is provided with a screw portion 213 for fastening the cap nut 240.
  • the tightening member 220 is made of spring steel, for example. As can be more clearly understood in FIG. 14, the tightening member 220 is formed in a ring shape, and an incision 221 is provided at an intermediate portion thereof. By this cutout 221, the tightening member 220 is easily compressed by external pressure, and the inner diameter is reduced.
  • the outer circumferential surface of the tightening member 220 is provided with inclined surfaces 223 and 224 which are inclined inwardly toward both ends with respect to the center portion 222. These inclined surfaces 223 and 224 correspond to the first inclined portion 212 and the second inclined portion 232 to be described later.
  • the inclined surfaces 223 and 224 are in contact with the first and second inclined portions 212 and 232, respectively, and the second inclined portions 232 are inserted into the insertion hole 211 along the horizontal direction, that is, the length direction of the pipe 100.
  • the inclined surfaces of the first and second inclined portions 212 and 232 slide inwardly, that is, in the direction of the outer circumferential surface of the pipe 100. Accordingly, the tightening member 220 is compressed in the inward direction.
  • a sawtooth stopper 225 is provided on the inner circumferential surface of the tightening member 220, for example. Similar to the first embodiment, the stopper 225 is fastened to the tightening member 220 when the teeth of the stopper 225 presses or digs the outer circumferential surface of the pipe 100 when the tightening member 220 is compressed inward. And increase the adhesion between the pipe 100.
  • the structure of the stopper 225 is not limited to a specific one, and any structure capable of improving the adhesion between the tightening member 220 and the pipe 100 may be adopted in the same manner.
  • the pressing member 230 is disposed between the tightening member 220 and the cap nut 240. As can be clearly understood in FIG. 15, the pressing member 230 is provided with a through hole 231 for inserting the pipe 100 in the center portion thereof, and a second inclined portion 232 is provided at the tip portion thereof.
  • the second inclined portion 232 is configured to be inclined in an outward direction, that is, in a direction opposite to the outer circumferential surface side of the pipe 100, corresponding to the inclined surface 224 of the tightening member 220.
  • O-ring groove 233 is installed on the outer circumferential surface of the pressing member 230, the O-ring 233a is installed.
  • the o-ring 233a is for hermetic sealing between the upper surface of the pressing member 230 and the inner circumferential surface of the insertion hole 211.
  • the step portion 234 is formed at the rear end of the O-ring groove 233.
  • the stepped portion 234 constitutes a guide groove communicating with the O-ring 233a from the rear end of the pressing member 230 together with the inner circumferential surface of the insertion hole 211.
  • the second pressing protrusion 243 of the cap nut 240 enters the stepped portion 234.
  • a first pressing protrusion 235 is formed at the rear end of the inner circumferential surface of the through hole 231.
  • the first pressing protrusion 235 is for pressing the O-ring 244a of the cap nut 240.
  • the cap nut 240 has a through hole 241 for inserting the pipe 100 in a central portion thereof, and a threaded portion 242 for fastening the cap nut 240 to the main body 210 is provided on an outer circumferential surface thereof.
  • the screw portion 242 is fastened to the screw portion 213 of the main body 210.
  • a second pressing protrusion 243 for pressing the O-ring 233a of the pressing member 230 is provided at the front end side of the cap nut 240.
  • an O-ring groove 244 is installed on the inner circumferential surface of the through hole 241.
  • the O-ring groove 244 is provided with an O-ring 244a.
  • the o-ring 244a is for sealing between the inner circumferential surface of the through hole 241 and the outer circumferential surface of the pipe 100.
  • the step part 245 is formed in the front end side of the O-ring 244a.
  • the stepped portion 245 constitutes a guide groove communicating with the outer ring of the pipe 100 to the O-ring 244a from the front end of the cap nut 240.
  • the first pressing protrusion 235 of the pressing member 230 enters the guide groove.
  • the cap nut 240, the pressing member 230, and the fastening member 220 are sequentially disposed on the outside of the pipe 100, and the front end of the pipe 100 is disposed. Is inserted into the insertion hole 211 of the main body 210, and then the screw 242 of the cap nut 240 is fastened to the screw 213 of the main body 210. As the cap nut 240 is fastened, the fastening member 220 and the pressing member 230 move inwardly of the insertion hole 211.
  • the tightening member 220 When the tightening member 220 is pressurized, the cutting width of the cutout portion 221 is reduced and the inner diameter of the tightening member 220 is reduced, whereby the tightening member 220 exerts a strong tightening force on the outer circumferential surface of the pipe 100. do.
  • the teeth of the stopper 225 provided on the inner circumferential surface of the tightening member 220 strongly press or dig the outer circumferential surface of the pipe 100 so that the tightening member 220 and the pipe 100 are strongly coupled to each other.
  • the second pressing protrusion 243 of the cap nut 240 is formed with the stepped portion 234 of the pressing member 230 and the inner circumferential surface of the insertion hole 211. Since the O-ring 233a is pressed in the horizontal direction, that is, the pipe length direction along the guide groove, the O-ring 233a is compressed in the horizontal direction, and the width of the O-ring 233a in the horizontal direction is narrowed, and the thickness in the vertical direction is reduced. Will increase. Therefore, the airtight force between the outer peripheral surface of the pressing member 230 and the inner peripheral surface of the insertion hole 211 is greatly increased.
  • the first pressing protrusion 235 of the pressing member 220 presses the O-ring 244a in the horizontal direction along the guide groove formed by the stepped portion 245 of the cap nut 240 and the outer circumferential surface of the pipe 100. Since the thickness of the O-ring 244a in the vertical direction is increased, the airtight force between the inner circumferential surface of the cap nut 240 and the outer circumferential surface of the pipe 100 is greatly increased.
  • the pressing force applied to the fastening member 220 is rotated with respect to the main body 210 by rotating the cap nut 240 in the release direction. Will be released.
  • the pressing member 220 removes the pressing force by the pressing member 230
  • the inclined surface 223 slides the first inclined portion 212 in the opposite direction to the above-described operation by its elastic force, and the inner diameter is restored to its original size. Will be. Therefore, the coupling force between the tightening member 220 and the pipe 100 is released, so that the pipe 100 can be easily separated from the main body 210.
  • the cutout 221 is provided in the fastening member 220, the inner diameter of the fastening member 220 can be easily reduced with only a slight pressing force. Therefore, since a large force is not required to fasten the cap nut 240 to the main body 210, the working efficiency of the worker can be improved.
  • the O-ring 233a provided on the outer circumferential surface of the pressing member 230 and the O-ring 244a provided on the inner circumferential surface of the cap nut 240 are pipes ( Since the thickness of the O-rings 233a and 244a is vertically enlarged to the maximum, the airtight force between the main body 210 and the pipe 100 is greatly improved.
  • FIG. 17 to 19 is a view showing a pipe connecting apparatus according to a third embodiment of the present invention
  • Figure 17 is a partial cross-sectional exploded perspective view
  • Figure 18 is a partial cross-sectional perspective view of the tightening member 320 in Figure 17
  • 19 is a sectional view when the pipe 100 is fastened to the pipe connecting device.
  • the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
  • the pipe connecting device includes the main body 210, the fastening member 320, the pressing member 230, and the cap nut 240, as in the above-described embodiment.
  • the main body 210, the pressing member 230, and the cap nut 240 are substantially the same as the above-described embodiment.
  • the tightening member 320 is formed in a ring shape like the above-described embodiment, and is provided with a cutout 321 at an intermediate portion.
  • the outer circumferential surface of the fastening member 320 is provided with inclined surfaces 323 and 324 which are inclined inwardly toward both ends with respect to the center portion 322.
  • the groove 325 is formed along the arc direction on the inner circumferential surface of the tightening member 320. This groove 325 corresponds to the stopper 225 in the second embodiment.
  • the width of the inner circumferential surface becomes wider than the width of the outer circumferential surface of the tightening member 320.
  • a contact portion between the inner circumferential surface of the tightening member 320 and the outer circumferential surface of the pipe 100 is limited to the inner edge portion of the groove 325. Accordingly, as the inner edge portion of the groove 325 strongly presses or digs the outer circumferential surface of the pipe 100, the coupling force between the tightening member 320 and the pipe 100 is further increased.
  • a restoring force for restoring the groove 325 to its original state is applied to the inner edge portion of the groove 325.
  • the restoring force acts to shape the groove 325 to grab the outer circumferential surface of the pipe 100 so that the coupling force between the tightening member 320 and the pipe 100 is further increased.
  • FIG. 20 to 22 is a view showing a pipe connecting apparatus according to a fourth embodiment of the present invention
  • Figure 20 is a partial cross-sectional exploded perspective view
  • Figure 21 is a partial cross-sectional perspective view of the tightening member 420 in Figure 17
  • 22 is a cross-sectional view when the pipe 100 is fastened to the pipe connecting device.
  • the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
  • the tightening member 320 and the pressing member 230 are integrally formed in the third embodiment shown in FIGS. 17 to 19.
  • the pipe connecting device includes a main body 210, a fastening member 420, and a cap nut 240.
  • the tightening member 420 is provided with a through hole 421 for inserting the pipe 100 in the center portion.
  • the inclined surface 422 is installed at the tip portion, and the groove 423 is formed in the arc direction on the inner circumferential surface.
  • the stepped portion 215 is installed inside the insertion hole 211 of the main body 210 instead of the first inclined portion 212 in the second and third embodiments.
  • the O-ring groove 424 is provided on the outer circumferential surface of the tightening member 420 in the same manner as the pressing member 230 in the above embodiment, the O-ring 424a is provided.
  • the o-ring 424a is for hermetic sealing between the outer circumferential surface of the tightening member 430 and the inner circumferential surface of the main body 210.
  • the stepped portion 425 is formed at the rear end of the O-ring groove 424, and the third pressing protrusion 426 is formed at the rear end.
  • the third pressing protrusion 426 is for pressing the O-ring 244a of the cap nut 240 similarly to the first pressing protrusion 235 described above.
  • the pressing force is inclined surface 422 of the tightening member 420.
  • the tip will be concentrated. Accordingly, as the groove 423 of the tightening member 420 is compressed, an external force is applied in a direction in which the inclination angle of the inclined surface 422 increases.
  • the inclination angle of the inclined surface 422 increases, the length of the inclined surface 422 increases in the vertical direction.
  • the outer circumferential surface of the fastening member 420 is supported by the inner circumferential surface of the main body 210, so that the inclined surface 422 The tip part is to dig the outer peripheral surface while pressing the outer peripheral surface of the pipe (100). Accordingly, the coupling force between the tightening member 420 and the pipe 100 is increased to prevent the pipe 100 from being easily separated from the main body 210.
  • Other operations are the same as the above-described embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Pressure Members (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)

Abstract

The present invention relates to a pipe connection device capable of easily and stably connecting pipes and completely preventing fluid leakage. The pipe connection device according to the present invention is coupled to a pipe so as to move fluid or is for coupling a pipe to another pipe, and comprises: a main body having an insertion hole into which a pipe is inserted; a fastening member inserted into the insertion hole, and having a first through hole provided in the center portion thereof and into which the pipe is inserted; and a cap nut coupled to the insertion hole of the main body and having a second through hole into which the pipe is inserted, wherein the main body has a tapered portion formed on the inner circumferential surface of the insertion hole and having an inner diameter monotonically decreasing from the inlet side of the insertion hole in the inward direction, the fastening member has a slant surface, which is provided to the outer circumferential surface thereof and has an outer diameter gradually increasing from one end to the other end, and a stepped portion, which is formed on the other end, the slant surface has two or more cut grooves formed along the longitudinal direction thereof, and the cap nut is formed to press the fastening member in the inward direction of the insertion hole when coupled to the main body.

Description

파이프 연결장치Pipe connection
본 발명은 유체 등의 유동 통로로서 제공되는 파이프를 결합하기 위한 파이프 연결장치에 관한 것으로, 특히 파이프 연결을 용이하면서도 견고하게 실행할 수 있음은 물론 유체의 누출을 완벽하게 방지할 수 있도록 된 파이프 연결장치에 관한 것이다.The present invention relates to a pipe connecting device for joining a pipe provided as a flow passage such as a fluid, and more particularly, a pipe connecting device capable of easily and firmly performing pipe connection as well as completely preventing leakage of fluid. It is about.
수돗물이나 가스 등과 같은 유체의 공급에는 통상 파이프라 칭하는 내부가 중공된 유동관이 채용되고 있다. 그리고 이러한 파이프와 더불어 유체의 흐름을 개폐하기 위한 밸브 등이 채용된다. 파이프와 파이프를 연결하거나 파이프와 밸브 등을 연결하는 부위에는 적절한 파이프 연결장치가 채용된다.In order to supply fluids, such as tap water and a gas, the inside of the hollow flow pipe called a pipe is employ | adopted. In addition to these pipes, a valve or the like for opening and closing the flow of the fluid is employed. Appropriate pipe connecting devices are adopted at the site of connecting pipes and pipes or connecting pipes and valves.
파이프 연결장치는 파이프 연결을 용이하게 실행할 수 있으면서도 연결 부위에서 발생될 수 있는 유체의 누출을 방지하고, 또한 파이프 연결부위로부터 파이프가 부적절하게 이탈되는 것을 확실하게 방지할 수 있는 구조가 요구된다. The pipe connecting device is required to have a structure that can easily execute the pipe connection, while preventing the leakage of fluid that may occur at the connection site, and also reliably prevent the pipe from being inappropriately released from the pipe connection.
종래의 파이프 연결장치에 있어서는 파이프의 이탈을 방지하기 위해 적절한 조임 부재를 채용하고 있다. 조임 부재는 파이프를 체결할 때 내경이 축소되어 파이프의 외주면을 조임으로써 파이프가 조임 부재로부터 이탈되는 것을 방지하도록 된 것이다.In the conventional pipe connecting apparatus, an appropriate fastening member is adopted to prevent the pipe from being separated. Tightening member is to reduce the inner diameter when tightening the pipe to tighten the outer peripheral surface of the pipe to prevent the pipe from being separated from the tightening member.
도 1은 종래기술에 따른 파이프 연결장치의 분리사시도이고, 도 2는 그 요부 단면도이다.1 is an exploded perspective view of a pipe connecting device according to the prior art, Figure 2 is a cross-sectional view of the main portion.
도면에서 파이프 연결장치는 연결 소켓(1)과 조임부재(7) 및 조임 너트(6)를 구비하여 구성된다. 상기 연결 소켓(1)은 일측에 제1 파이프(9)를 체결하기 위한 제1 나사부(2)가 형성되고, 타측에는 내부 접속관(4)과 파이프 삽입홈(5)이 구비됨과 더불어 조임 너트(6)를 체결하기 위한 제2 나사부(3)가 구비된다.In the figure the pipe connecting device comprises a connecting socket 1, a fastening member 7 and a fastening nut 6. The connection socket 1 has a first screw part 2 for fastening the first pipe 9 to one side, and an inner connection pipe 4 and a pipe insertion groove 5 on the other side, and a tightening nut. (6) is provided with a second screw portion (3).
조임부재(7)는 링 형상으로 이루어짐과 더불어 절개부(8)가 구비되고, 내주면에는 돌기(7a)가 구비된다. 제2 파이프(10)는 조임 너트(6)와 조임 부재(7)의 내측을 통해서 연결 소켓(1)의 파이프 삽입홈(5)에 삽입되고, 이후 조임 너트(6)가 제2 나사부(3)에 체결된다. 특히 파이프 삽입홈(5)의 외측 모서리 부분과 조임 너트(6)의 내측에는 각각 경사면(5a, 6a)이 설치된다. 따라서 조임 너트(6)를 제2 나사부(3)에 체결하게 되면 그 체결 강도에 따라 조임 부재(7)가 내향 방향으로 압축되어 제2 파이프(10)에 대한 조임 부재(7)의 밀착력이 강해지게 되고, 또한 조임 부재(7)의 내측면에 구비되는 돌기(7a)가 제2 파이프(10)의 외주면으로 파고들면서 조임 부재(7)와 제2 파이프(10)의 밀착력이 더욱 증가됨으로써 제2 파이프(10)가 조임 부재(7), 즉 연결 소켓(1)으로부터 부적절하게 이탈되는 것이 방지되게 된다.The tightening member 7 is formed in a ring shape and is provided with a cutout 8, and a protrusion 7a is provided on the inner circumferential surface thereof. The second pipe 10 is inserted into the pipe insertion groove 5 of the connecting socket 1 through the inside of the fastening nut 6 and the fastening member 7, and then the fastening nut 6 is inserted into the second threaded portion 3. ) Is fastened. In particular, the inclined surfaces 5a and 6a are provided in the outer edge portion of the pipe insertion groove 5 and the inside of the tightening nut 6, respectively. Therefore, when the fastening nut 6 is fastened to the second threaded portion 3, the fastening member 7 is compressed inward according to the fastening strength thereof, so that the tightness of the fastening member 7 to the second pipe 10 is strong. The projection 7a provided on the inner surface of the tightening member 7 penetrates into the outer circumferential surface of the second pipe 10, thereby further increasing the adhesion between the tightening member 7 and the second pipe 10. The improper detachment of the two pipe 10 from the tightening member 7, ie the connecting socket 1, is prevented.
또한 실용신안등록 20-0120330호(명칭: 원터치 삽입식 관연결구)에는 링 형상으로 이루어짐과 더불어 양측 단부에 다수의 요(凹)홈이 형성된 조임 부재에 대해 개시되어 있다. In addition, Utility Model Registration No. 20-0120330 (name: one-touch insertion tube) discloses a fastening member which is formed in a ring shape and has a plurality of grooves formed at both ends thereof.
도 3은 종래기술에 따른 관 연결구의 일부 단면 분해도이고, 도 4는 도 3에서 조임 부재(40)의 외관 형상을 나타낸 사시도이다. 또한 도 5는 관 연결구에 파이프를 체결한 경우의 요부 단면 구성을 나타낸 단면도이다.3 is a partial cross-sectional exploded view of the tube connector according to the prior art, Figure 4 is a perspective view showing the appearance of the tightening member 40 in FIG. 5 is sectional drawing which showed the principal part cross section structure at the time of fastening a pipe to a pipe connector.
도면에서 관 연결구는 소켓 본체(20)와 캡 너트(30) 및 조임 부재(40)를 구비하여 구성된다. 여기서 소켓 본체(20)는 L형, T형 등의 관 접속구에 나사 결합되는 나사 접속부(20a)와 캡 너트(30)가 나사 결합되는 나사 접속부(20b)가 구비되고, 나사 접속부(20b)가 구비되는 삽입구에는 캡 너트(30)와 조임 부재(40)의 내측을 통해서 파이프(50)가 삽입된다.In the figure, the pipe connector is configured with a socket body 20, a cap nut 30 and a fastening member 40. Here, the socket main body 20 is provided with a screw connection portion 20a screwed to a pipe connection hole such as an L type or a T type, and a screw connection portion 20b to which the cap nut 30 is screwed, and the screw connection portion 20b is provided. The pipe 50 is inserted into the insertion hole provided through the cap nut 30 and the tightening member 40.
조임 부재(40)는 폭이 넓은 링 형상으로 구성된다. 조임 부재(40)의 외주면은 중앙부(40a)를 기점으로 하여 양단 측으로 가면서 중심측으로 경사지는 경사면(40b, 40c)이 형성되고, 양단부에는 다수의 요홈(41, 42)이 형성된다. 그리고 내주면에는 오링홈(43)이 형성된다.The tightening member 40 is configured in a wide ring shape. The outer circumferential surface of the tightening member 40 is formed with inclined surfaces 40b and 40c which are inclined toward the center side toward both ends from the center portion 40a as a starting point, and a plurality of grooves 41 and 42 are formed at both ends. And the O-ring groove 43 is formed on the inner circumferential surface.
소켓 본체(20)의 파이프 삽입구와 캡 너트(30)의 내측에는 조임 부재(40)의 경사면(40b, 40c)에 대응하여 경사면(21, 31)이 설치된다. 따라서 소캣 본체(20)와 캡 너트(30)의 사이에 조임 부재(40)를 배치한 상태에서 캡 너트(30)를 나사 접속부(20b)에 체결하게 되면 그 체결 강도에 따라 경사면(21, 31)이 조임 부재(40)의 경사면(40b, 40c)을 따라 슬라이딩 이동하면서 조임 부재(40)를 내향 방향으로 가압하게 된다. 이에 따라 조임 부재(40)는 내향 방향으로 압축되면서 그 내측에 배치되는 파이프(50)와 일정 이상의 압력으로 밀착되어 파이프(50)가 소켓 본체(20)로부터 부적절하게 이탈되는 것을 방지하게 된다.The inclined surfaces 21 and 31 are provided in the pipe insertion hole of the socket main body 20 and the inside of the cap nut 30 corresponding to the inclined surfaces 40b and 40c of the fastening member 40. Therefore, when the cap nut 30 is fastened to the screw connection portion 20b in a state where the fastening member 40 is disposed between the socket body 20 and the cap nut 30, the inclined surfaces 21 and 31 according to the fastening strength thereof. ) Presses the tightening member 40 in the inward direction while slidingly sliding along the inclined surfaces 40b and 40c of the tightening member 40. Accordingly, the fastening member 40 is pressed inwardly and in close contact with the pipe 50 disposed therein at a predetermined pressure or more to prevent the pipe 50 from being inappropriately separated from the socket body 20.
그런데 상술한 종래의 파이프 연결장치에 있어서는 관 접속구나 소켓 본체와 여기에 결합되는 파이프 사이의 밀폐력이 부족하여 연결 부위를 통해 유체가 누출되는 문제가 발생할 수 있다.By the way, in the above-described conventional pipe connecting device there is a problem that the fluid leaks through the connection site due to the lack of the sealing force between the pipe connection or the socket body and the pipe coupled thereto.
예를 들어, 도 1 및 도 2에 나타낸 종래 구성에 있어서는 파이프(9, 10)를 통해 유동되는 유체가 제1 파이프(9)와 제1 나사부(2)의 체결 부위를 통해 외부로 누출되거나, 파이프 삽입홈(5)과 제2 파이프(10) 사이의 접촉면과 조임 부재(7)와 경사면(5a)의 접촉면을 통해서 조임 너트(6)의 내측으로 누출된 후 다시 조임 부재(7)와 경사면(6a) 사이의 접촉면 및 제2 나사부(3)와 조임 너트(6)의 체결 부위를 통해서 외부로 누출될 수 있게 된다.For example, in the conventional configuration shown in Figs. 1 and 2, the fluid flowing through the pipes 9 and 10 leaks to the outside through the fastening portion of the first pipe 9 and the first threaded portion 2, After leaking to the inside of the tightening nut 6 through the contact surface between the pipe insertion groove 5 and the second pipe 10 and the contact surface between the tightening member 7 and the inclined surface 5a, the tightening member 7 and the inclined surface again. Through the contact surface between 6a and the fastening part of the 2nd screw part 3 and the fastening nut 6, it can leak out.
또한 도 3 내지 도 5에 나타낸 종래 구성에 있어서는 파이프(50)를 통해 유동되는 유체가 소켓 본체(20)의 경사면(21)과 조임 부재(40)의 경사면(40b) 사이의 접촉면과, 캡 너트(30)와 파이프(50) 사이의 접촉면 및, 캡 너트(30)와 나사 접속부(20b)의 체결부위를 통해 외부로 누출될 수 있게 된다.3 to 5, the fluid flowing through the pipe 50 is connected to the contact surface between the inclined surface 21 of the socket body 20 and the inclined surface 40b of the fastening member 40, and the cap nut. Through the contact surface between the 30 and the pipe 50, and the fastening portion of the cap nut 30 and the screw connection portion 20b can be leaked to the outside.
또한 상술한 종래의 파이프 연결장치에 있어서 파이프 연결장치에 대한 파이프의 결합력은 조임 부재(7, 40)와 파이프(10, 50)의 마찰력에 의해 결정된다. 그러나 통상 금속 재질로 구성되는 조임 부재(7, 40)와 파이프(10, 50)가 접촉되는 경우 제한된 접촉 면적내에서 상기 마찰력을 일정 레벨 이상 높이는데 한계가 있게 된다. 그리고 상기 마찰력을 일정 레벨 이상으로 제고하기 위해서는 조임 부재(7. 40)의 조임력, 즉 조임 너트(6)와 캡 너트(30)의 체결력을 일정 이상으로 높여야 하므로 파이프 연결장치의 작업 효율이 저하되는 문제가 있게 된다.In addition, in the above-described conventional pipe connecting device, the coupling force of the pipe to the pipe connecting device is determined by the frictional force between the fastening members 7 and 40 and the pipes 10 and 50. However, when the tightening members 7 and 40 and the pipes 10 and 50, which are usually made of metal, are in contact with each other, there is a limit to increasing the friction force by a predetermined level or more within a limited contact area. In order to increase the friction force above a predetermined level, the tightening force of the fastening member 7.40, that is, the fastening force between the fastening nut 6 and the cap nut 30 must be increased to a predetermined level or more, thereby reducing the work efficiency of the pipe connecting device. There is a problem.
본 발명은 상기한 사정을 감안하여 창출된 것으로서, 파이프 연결장치와 파이프 사이의 밀폐력을 향상시켜 그 연결 부위에서 발생될 수 있는 유체의 누출 문제를 확실하게 방지할 수 있도록 된 파이프 연결장치를 제공함에 기술적 목적이 있다SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a pipe connecting device capable of reliably preventing a leakage problem of fluid that may occur at the connection site by improving the sealing force between the pipe connecting device and the pipe. Have a technical purpose
또한 본 발명은 파이프 연결장치와 파이프 사이의 결합력을 향상시켜 파이프가 연결장치로부터 부적절하게 이탈되는 것을 확실하게 방지할 수 있도록 된 파이프 연결장치를 제공함에 다른 목적이 있다.It is another object of the present invention to provide a pipe connecting device which can improve the coupling force between the pipe connecting device and the pipe so as to reliably prevent the pipe from being improperly separated from the connecting device.
상기 목적을 실현하기 위한 본 발명의 제1 관점에 따른 파이프 연걸장치는 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서, 파이프가 삽입되는 삽입구가 구비되는 본체와, 상기 삽입구의 내측에 삽입됨과 더불어 중심 부분에 파이프를 삽입하기 위한 제1 관통공이 구비되는 조임 부재 및, 상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고, 상기 본체의 삽입구 내주면에는 삽입구의 입구측으로부터 내측으로 갈수록 내경이 단조적으로 감소되는 테이퍼부가 형성되고, 상기 조임 부재는 외주면에 경사면과 단턱부가 구비되고, 상기 경사면은 조임 부재의 외경이 일단으로부터 타단으로 가면서 단조적으로 증가되도록 형성되며, 상기 경사면에는 길이 방향을 따라 2개 이상의 절개홈이 형성되며, 상기 캡 너트는 본체에 체결될 때 조임 부재를 삽입구의 내측 방향으로 가압하도록 구성되는 것을 특징으로 한다.The pipe hooking device according to the first aspect of the present invention for realizing the above object is coupled to a pipe for flowing fluid, or in a pipe connecting device for coupling the pipe and the pipe, the body is provided with an insertion hole is inserted And a cap having a fastening member inserted into the insertion hole and having a first through hole for inserting a pipe into the center portion, and a second through hole fastened to the insertion hole of the main body and inserted into the center portion. It is configured to include a nut, the inner peripheral surface of the insertion hole of the main body is formed with a tapered portion of the inner diameter is monotonously reduced from the inlet side of the insertion hole, the tightening member is provided with an inclined surface and stepped portion on the outer peripheral surface, the inclined surface is tightened The outer diameter of the member is formed to increase monotonously from one end to the other end At least two incision grooves are formed in the inclined surface along the longitudinal direction, and the cap nut is configured to press the fastening member toward the inside of the insertion hole when the cap nut is fastened to the main body.
상기한 구성으로 된 본 발명에 의하면, 파이프 연결수단에 대한 파이프의 결합 및 해제가 용이하고, 본체에 결합되는 파이프가 임의적으로 이탈되는 것이 확실하게 방지되며, 본체와 파이프 사이의 결합 부위를 통해 유체가 누출되는 것을 확실하게 방지할 수 있는 파이프 연결장치를 구현할 수 있게 된다.According to the present invention having the above-described configuration, it is easy to engage and disengage the pipe to the pipe connecting means, it is reliably prevented that the pipe to be coupled to the main body is randomly escaped, and the fluid through It is possible to implement a pipe connection that can reliably prevent leakage of gas.
도 1은 종래 기술에 따른 파이프 연결장치의 분리 사시도.1 is an exploded perspective view of a pipe connecting device according to the prior art.
도 2는 도 1에 나타낸 파이프 연결장치의 요부 단면도.FIG. 2 is a sectional view of principal parts of the pipe connecting device shown in FIG. 1; FIG.
도 3은 종래 기술에 따른 관 연결구의 일부 단면 분해도.3 is a partial cross-sectional exploded view of a tube connector according to the prior art;
도 4는 도 3에서 조임 부재(40)의 외관 형상을 나타낸 사시도.4 is a perspective view showing an appearance of the tightening member 40 in FIG. 3.
도 5는 관 연결구에 파이프를 체결한 경우의 요부 단면도.5 is a sectional view of principal parts when the pipe is fastened to the pipe connector.
도 6은 본 발명의 제1 실시 예에 따른 파이프 연결장치의 분해 사시도.6 is an exploded perspective view of a pipe connecting apparatus according to the first embodiment of the present invention.
도 7은 도 6의 단면 사시도.7 is a cross-sectional perspective view of FIG. 6.
도 8은 도 6의 단면도.8 is a cross-sectional view of FIG. 6.
도 9는 파이프 연결장치에 파이프를 결합한 상태에서의 단면도.9 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
도 10은 제1 실시 예의 제1 변형 예에 따른 분해 단면도.10 is an exploded cross-sectional view according to a first modification of the first embodiment.
도 11은 도 10에서 파이프 연결장치에 파이프를 결합한 상태에서의 단면도.11 is a cross-sectional view of a pipe coupled to the pipe connecting device in FIG.
도 12는 본 발명의 제2 실시 예에 따른 파이프 연결장치의 일부 단면 분해도.12 is an exploded partial view of the pipe connecting apparatus according to the second embodiment of the present invention.
도 13은 도 12에 대응하는 분해 단면도.13 is an exploded cross-sectional view corresponding to FIG. 12.
도 14는 도 12에서 조임 부재(220)의 일부 단면 사시도.14 is a partial cross-sectional perspective view of the tightening member 220 in FIG. 12.
도 15는 도 12에서 가압 부재(230)의 일부 단면 사시도.FIG. 15 is a partial cross-sectional perspective view of the pressing member 230 in FIG. 12.
도 16은 파이프 연결장치에 파이프를 결합한 상태에서의 단면도.16 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
도 17은 본 발명의 제3 실시 예에 따른 파이프 연결장치의 일부 단면 분해도.17 is an exploded partial cross-sectional view of a pipe connecting apparatus according to a third embodiment of the present invention.
도 18은 도 17에서 조임 부재(320)의 일부 단면 사시도.18 is a partial cross-sectional perspective view of the tightening member 320 in FIG. 17.
도 19는 파이프 연결장치에 파이프를 결합한 상태에서의 단면도.19 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
도 20은 본 발명의 제4 실시 예에 따른 파이프 연결장치의 일부 단면 분해도.20 is a partial cross-sectional exploded view of a pipe connecting apparatus according to the fourth embodiment of the present invention.
도 21은 도 20에서 조임 부재(420)의 일부 단면 사시도.21 is a partial cross-sectional perspective view of the tightening member 420 in FIG. 20.
도 22는 파이프 연결장치에 파이프를 결합한 상태에서의 단면도. 22 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
상기 목적을 실현하기 위한 본 발명의 제1 관점에 따른 파이프 연걸장치는 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서, 파이프가 삽입되는 삽입구가 구비되는 본체와, 상기 삽입구의 내측에 삽입됨과 더불어 중심 부분에 파이프를 삽입하기 위한 제1 관통공이 구비되는 조임 부재 및, 상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고, 상기 본체의 삽입구 내주면에는 삽입구의 입구측으로부터 내측으로 갈수록 내경이 단조적으로 감소되는 테이퍼부가 형성되고, 상기 조임 부재는 외주면에 경사면과 단턱부가 구비되고, 상기 경사면은 조임 부재의 외경이 일단으로부터 타단으로 가면서 단조적으로 증가되도록 형성되며, 상기 경사면에는 길이 방향을 따라 2개 이상의 절개홈이 형성되며, 상기 캡 너트는 본체에 체결될 때 조임 부재를 삽입구의 내측 방향으로 가압하도록 구성되는 것을 특징으로 한다.The pipe hooking device according to the first aspect of the present invention for realizing the above object is coupled to a pipe for flowing fluid, or in a pipe connecting device for coupling the pipe and the pipe, the body is provided with an insertion hole is inserted And a cap having a fastening member inserted into the insertion hole and having a first through hole for inserting a pipe into the center portion, and a second through hole fastened to the insertion hole of the main body and inserted into the center portion. It is configured to include a nut, the inner peripheral surface of the insertion hole of the main body is formed with a tapered portion of the inner diameter is monotonously reduced from the inlet side of the insertion hole, the tightening member is provided with an inclined surface and stepped portion on the outer peripheral surface, the inclined surface is tightened The outer diameter of the member is formed to increase monotonously from one end to the other end At least two incision grooves are formed in the inclined surface along the longitudinal direction, and the cap nut is configured to press the fastening member toward the inside of the insertion hole when the cap nut is fastened to the main body.
또한 상기 삽입구의 내주면에는 테이퍼부의 양측에 제1 및 제2 오링이 설치되고, 상기 제2 오링은 상기 삽입구에 조임 부재가 삽입되었을 때 상기 절개홈의 외측에 위치하는 것을 특징으로 한다.In addition, the inner circumferential surface of the insertion hole is provided with first and second O-rings on both sides of the tapered portion, and the second O-ring is positioned outside the cutting groove when the fastening member is inserted into the insertion hole.
또한 상기 조임 부재의 단턱부에 대응하는 관통공 내주면에는 제3 오링이 구비되는 것을 특징으로 한다.In addition, a third O-ring is provided on the inner circumferential surface of the through hole corresponding to the stepped portion of the tightening member.
또한 상기 캡 너트의 관통공 내주면에는 제4 오링이 구비되는 것을 특징으로 한다.In addition, a fourth O-ring is provided on the inner circumferential surface of the through hole of the cap nut.
또한 상기 절개홈은 파이프의 길이 방향에 대하여 경사지게 형성되는 것을 특징으로 한다.In addition, the cutting groove is characterized in that it is formed inclined with respect to the longitudinal direction of the pipe.
또한 상기 조임 부재의 경사면에 대응하는 관통공의 내주면에는 스토퍼가 추가로 형성되는 것을 특징으로 한다.In addition, the inner peripheral surface of the through hole corresponding to the inclined surface of the tightening member is characterized in that the stopper is further formed.
또한 상기 조임 부재와 캡 너트의 사이에 압박링이 추가로 구비되고, 상기 조임 부재에는 캡 너트와의 결합 방향으로 상기 압박링을 제3 오링과 연통하기 위한 제1 결합공이 추가로 구비되며, 상기 캡 너트에는 조임 부재와의 결합 방향으로 상기 압박링을 제4 오링과 연통하기 위한 제2 결합공이 추가로 구비되는 것을 특징으로 한다.In addition, the pressing ring is further provided between the tightening member and the cap nut, the tightening member is further provided with a first coupling hole for communicating the pressing ring with the third O-ring in the coupling direction with the cap nut, The cap nut is further provided with a second coupling hole for communicating the pressure ring with the fourth O-ring in the direction of engagement with the tightening member.
본 발명의 제2 관점에 따른 파이프 연결장치는 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서, 파이프가 삽입되는 삽입구가 구비되는 본체와, 링 형상으로 이루어짐과 더불어 중간 부분에 절개부가 구비되며, 상기 삽입구의 내주면과 파이프의 외주면 사이에 배치되는 조임 부재, 중심 부분에 파이프가 삽입되는 제1 관통공이 구비되고, 조임 부재와 캡 너트의 사이에 배치되는 가압 부재 및, 상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고, 상기 본체는 삽입구 내주면에 조임 부재의 제1 경사면에 대응하는 제1 경사부가 구비되고, 상기 조임 부재는 외주면에 중앙부를 기준으로 양단부로 갈수록 내향 방향으로 경사지는 제1 및 제2 경사면이 구비되며, 상기 가압 부재는 선단부에 상기 제2 경사면에 대응하는 제2 경사부를 구비하는 것을 특징으로 한다.The pipe connecting device according to the second aspect of the present invention is coupled to a pipe for flowing a fluid, or in a pipe connecting device for coupling a pipe and a pipe, the main body is provided with an insertion hole into which the pipe is inserted, and has a ring shape In addition, a cutout portion is provided at an intermediate portion, a fastening member disposed between the inner circumferential surface of the insertion hole and the outer circumferential surface of the pipe, a first through hole into which the pipe is inserted in the central portion, and a pressure disposed between the tightening member and the cap nut. And a cap nut having a second through hole through which the member is fastened to the insertion hole of the main body and into which the pipe is inserted into the center portion, wherein the main body corresponds to a first inclined surface of the tightening member on the inner circumferential surface of the insertion hole. It is provided with an inclined portion, the tightening member in the inward direction toward both ends relative to the center portion on the outer peripheral surface Extremities of the first and second, and having a second inclined surface, wherein the pressing member is characterized in that it comprises a second front end inclined portion corresponding to the second inclined surface.
또한 상기 조임 부재의 내주면에는 스토퍼가 형성되는 것을 특징으로 한다.In addition, the inner peripheral surface of the tightening member is characterized in that the stopper is formed.
또한 상기 조임 부재의 내주면에는 원호 방향을 따라 홈이 추가로 형성되는 것을 특징으로 한다.In addition, the inner peripheral surface of the tightening member is characterized in that the groove is further formed along the arc direction.
또한 상기 가압 부재의 외주면에 제1 오링이 설치되는 것을 특징으로 한다.In addition, a first O-ring is installed on the outer circumferential surface of the pressing member.
또한 상기 제2 관통공의 내주면에 제2 오링이 설치되는 것을 특징으로 한다.In addition, a second O-ring is installed on the inner circumferential surface of the second through hole.
또한 상기 제1 오링의 후단에 제1 단차부가 형성되고, 상기 캡 너트의 선단부에는 상기 제1 단차부를 통해서 제1 오링을 가압하기 위한 제1 가압 돌기가 추가로 구비되는 것을 특징으로 한다.In addition, a first stepped portion is formed at a rear end of the first O-ring, and a first pressing protrusion for pressing the first O-ring through the first stepped portion is further provided at the front end of the cap nut.
또한 상기 제2 오링의 전단에는 제2 단차부가 형성되고, 상기 가압 부재의 후단부에는 상기 제2 단차부를 통해 제2 오링을 가압하기 위한 제2 가압 돌기가 추가로 구비되는 것을 특징으로 한다.In addition, a second stepped portion is formed at the front end of the second o-ring, and a second pressing protrusion for pressing the second o-ring through the second stepped portion is further provided at the rear end of the pressing member.
본 발명의 제3 관점에 따른 파이프 연결장치는 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서, 파이프가 삽입되는 삽입구가 구비되는 본체와, 중심 부분에 파이프가 삽입되는 제1 관통공이 구비되고 상기 삽입구의 내주면과 파이프의 외주면 사이에 배치되는 조임 부재 및, 상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고, 상기 본체는 삽입구 내측에 조임 부재의 진입을 차단하기 위한 단턱부가 구비되고, 상기 조임 부재는 선단부에 내향 방향으로 경사지는 경사면이 구비되고, 선단부 내주면에는 원주 방향으로 홈이 형성되는 것을 특징으로 한다.The pipe connecting device according to the third aspect of the present invention is coupled to a pipe for flowing a fluid, or in a pipe connecting device for coupling a pipe and a pipe, a main body provided with an insertion hole into which the pipe is inserted, and a pipe in a central portion thereof. A cap nut provided with a first through hole into which is inserted a fastening member disposed between an inner circumferential surface of the insertion hole and an outer circumferential surface of the pipe, and a second through hole which is fastened to the insertion hole of the main body and into which the pipe is inserted into the center portion. It is configured to include, the main body is provided with a stepped portion for blocking the entry of the tightening member inside the insertion hole, the tightening member is provided with an inclined surface inclined in the inward direction in the front end portion, the groove is formed in the circumferential direction on the front end portion It is characterized by.
또한 상기 조임 부재의 외주면에 제1 오링이 설치되는 것을 특징으로 한다.In addition, a first O-ring is installed on the outer circumferential surface of the tightening member.
또한 상기 제2 관통공의 내주면에 제2 오링이 설치되는 것을 특징으로 한다.In addition, a second O-ring is installed on the inner circumferential surface of the second through hole.
또한 상기 제1 오링의 후단에 제1 단차부가 형성되고, 상기 캡 너트의 선단부에는 상기 제1 단차부를 통해서 제1 오링을 가압하기 위한 제1 가압 돌기가 추가로 구비되는 것을 특징으로 한다.In addition, a first stepped portion is formed at a rear end of the first O-ring, and a first pressing protrusion for pressing the first O-ring through the first stepped portion is further provided at the front end of the cap nut.
또한 상기 제2 오링의 전단에는 제2 단차부가 형성되고, 상기 조임 부재의 후단부에는 상기 제2 단차부를 통해 제2 오링을 가압하기 위한 제2 가압 돌기가 추가로 구비되는 것을 특징으로 한다.In addition, a second stepped portion is formed at the front end of the second O-ring, and a second pressing protrusion for pressing the second O-ring through the second stepped portion is further provided at the rear end of the fastening member.
이하 도면을 참조하여 본 발명의 실시 예를 설명한다. 다만 이하에서 설명하는 실시 예는 본 발명의 바람직한 구현 예를 예시적으로 나타낸 것으로서, 이러한 실시 예의 예시는 본 발명의 권리 범위를 제한하기 위한 것이 아니다. 본 발명은 그 기술적 사상을 벗어나지 않는 범위 내에서 다양하게 변형시켜 실시할 수 있다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments described below are merely illustrative of the preferred embodiment of the present invention, the examples of such embodiments are not intended to limit the scope of the present invention. The present invention can be carried out in various modifications without departing from the spirit thereof.
또한 본 명세서에서 파이프 연결장치의 의미는 파이프 연결에 사용되는 T형, L형 및 십자형 등을 포함하는 일체의 파이프 연결구나, 이들 파이프 연결구와 파이프의 체결에 추가적으로 채용되거나 파이프 사이의 연결에 채용될 수 있는 일체의 소켓 구조를 포함하는 것으로서, 본 발명의 파이프 연결장치는 파이프의 결합에 채용될 수 있는 일체의 기구 및 구조를 포함하는 것이다.In addition, the meaning of the pipe connecting device in the present specification is any pipe connection including T-shaped, L-shaped and cross-shaped, etc. used for the pipe connection, additionally employed in the connection between the pipe connection and the pipe or may be employed in the connection between the pipes. Including an integral socket structure that can be employed, the pipe connection device of the present invention includes an integral mechanism and structure that can be employed for the joining of pipes.
도 6 내지 도 9는 본 발명의 제1 실시 예에 따른 파이프 연결장치의 구조를 나타낸 도면으로서, 도 6은 파이프 연결장치의 분해 사시도, 도 7은 분해 단면 사시도, 도 8은 분해 단면도, 도 9는 파이프 연결장치에 파이프를 결합한 상태에서의 단면도이다.6 to 9 are views showing the structure of a pipe connecting apparatus according to the first embodiment of the present invention, Figure 6 is an exploded perspective view of the pipe connecting device, Figure 7 is an exploded cross-sectional perspective view, Figure 8 is an exploded cross-sectional view, Figure 9 Is a cross-sectional view with the pipe connected to the pipe connecting device.
또한 본 실시 예는 파이프(100)가 결합되는 삽입구가 3개 구비되면서 이들 삽입구가 내부적으로 서로 연통되도록 구성되는 T형 파이프 연결구에 본 발명을 적용시킨 경우를 예로 들어 나타낸 것이다. 또한 본 실시 예에서 3개의 파이프 삽입구에 대한 각각의 파이프 연결 구조는 실질적으로 동일하므로 하나의 파이프 삽입구에 대한 연결구조에 대해서만 구체적으로 설명한다.In addition, the present embodiment shows a case in which the present invention is applied to the T-shaped pipe connector which is configured to be in communication with each other internally while the three insertion ports are provided with the pipe 100 is shown as an example. In addition, in the present embodiment, since each pipe connection structure for the three pipe insertion holes is substantially the same, only a connection structure for one pipe insertion hole will be described in detail.
도면에서 본 실시 예에 따른 파이프 연결장치는 본체(110)와 조임 부재(120) 및 캡 너트(130)를 구비하여 구성된다.In the drawings, the pipe connecting device according to the embodiment includes a main body 110, a fastening member 120, and a cap nut 130.
본체(110)는 파이프(100)가 삽입되는 삽입구의 외주면에 나사부(111)가 형성되고, 상기 삽입구의 내주면에는 테이퍼부(112)가 형성된다. 테이퍼부(112)는 삽입구의 입구측으로부터 내측으로 갈수록 내경이 단조적으로 감소되는 형상으로 이루어진다. The main body 110 has a threaded portion 111 formed on the outer circumferential surface of the insertion hole into which the pipe 100 is inserted, and a tapered portion 112 is formed on the inner circumferential surface of the insertion hole. The taper portion 112 has a shape in which the inner diameter monotonously decreases toward the inner side from the inlet side of the insertion port.
또한 삽입구의 내주면에서 테이퍼부(112)의 양측에는 각각 오링(113, 114)이 설치된다. 이때 오링(113, 114)의 설치 위치에는 바람직하게 오링홈이 마련된다. 오링(113)은 파이프 삽입구에 있어서 테이퍼부(112) 안쪽의 내주면에 설치되고, 오링(114)은 테이퍼부(112)의 경사면, 바람직하게는 테이퍼부(112)의 내경이 가장 큰 위치에 설치된다. 도 9에서 보다 명확하게 이해될 수 있는 바와 같이, 오링(113)은 파이프(100)를 통해 유동되는 유체가 본체(110)의 내주면과 파이프(100)의 외주면 사이를 통해 외부로 누출되는 것을 차단하기 위한 것이다. 오링(114)은 본체(110)와 파이프(100) 사이의 밀폐력을 보다 확실하게 보장하기 위한 것이다. 오링(114)은 만일 오링(113)을 통해 유체가 누출되더라도 이 유체가 본체(110)의 내주면과 이후에 설명할 조임 부재(120)의 외주면을 통해 외부로 누출되는 것을 방지하기 위한 것이다.In addition, O- rings 113 and 114 are provided at both sides of the tapered portion 112 at the inner circumferential surface of the insertion hole. At this time, the O-ring grooves are preferably provided at the installation positions of the O- rings 113 and 114. O-ring 113 is installed on the inner peripheral surface of the tapered portion 112 in the pipe insertion hole, O-ring 114 is installed on the inclined surface of the tapered portion 112, preferably the position of the inner diameter of the tapered portion 112 is the largest do. As can be more clearly understood in FIG. 9, the O-ring 113 prevents fluid flowing through the pipe 100 from leaking to the outside through between the inner circumferential surface of the body 110 and the outer circumferential surface of the pipe 100. It is to. The o-ring 114 is to more reliably ensure the sealing force between the body 110 and the pipe 100. The o-ring 114 is intended to prevent the fluid from leaking out through the inner circumferential surface of the body 110 and the outer circumferential surface of the fastening member 120 to be described later, even if the fluid leaks through the o-ring 113.
조임 부재(120)는 예컨대 고강도 및 고탄력성을 갖는 스프링강으로 이루어진다. 조임 부재(120)는 중앙 부분에 파이프가 삽입되는 관통공(121)이 구비되고, 외주면에는 경사면(122)과 단턱부(123)가 형성된다. 상기 경사면(122)은 본체(110)의 테이퍼부(112)에 대응하는 것으로서, 경사면(122)은 선단부, 즉 본체(110)의 삽입구로 먼저 삽입되는 부분으로부터 후단으로 갈수록 외경이 점차 넓어지도록 구성되고, 경사면(122)에는 바람직하게는 2개 이상의 절개홈(122a)이 형성된다.The tightening member 120 is made of, for example, spring steel having high strength and high elasticity. Tightening member 120 is provided with a through hole 121 is inserted into the pipe in the center portion, the inclined surface 122 and the stepped portion 123 is formed on the outer peripheral surface. The inclined surface 122 corresponds to the taper portion 112 of the main body 110, and the inclined surface 122 is configured to gradually widen in diameter toward the rear end from a portion that is first inserted into the front end portion, that is, the insertion hole of the main body 110. In the inclined surface 122, two or more incision grooves 122a are preferably formed.
절개홈(122a)은 경사면(122)의 길이 방향을 따라 연장되어 형성되는데, 바람직하게 상기 절개홈(122a)은 조임 부재(120)의 회전에 따라 경사면(122)이 보다 용이하게 내측으로 조여질 수 있도록 길이 방향에 대해 일정한 경사각을 갖도록 형성된다. 또한 상기 절개홈(122a)은 내부 관통공(121)을 통해 삽입되는 파이프(100)를 보다 용이하면서도 긴밀하게 조일 수 있도록 경사면(122)의 길이 방향을 따라 최대한 연장되면서 형성되고, 그 연장 길이는 조임 부재(120)를 본체(110)의 삽입구 측으로 삽입한 경우에 오링(114)을 벗어나지 않는 범위 내로 제한된다. 이는 절개홈(122a)을 통해 내부로부터 유체가 누출되더라도 그 누출되는 유체가 오링(114)에 의해 차단될 수 있도록 하기 위한 것이다.The incision groove 122a extends along the longitudinal direction of the inclined surface 122. Preferably, the incision groove 122a is more easily inwardly inclined by the rotation of the fastening member 120. It is formed to have a constant angle of inclination with respect to the longitudinal direction. In addition, the incision groove 122a is formed while extending as much as possible along the longitudinal direction of the inclined surface 122 so that the pipe 100 inserted through the inner through hole 121 can be tightened more easily and easily. When the fastening member 120 is inserted into the insertion hole side of the main body 110, it is limited to the range which does not deviate from the O-ring 114. FIG. This is to allow the leaking fluid to be blocked by the O-ring 114 even if the fluid leaks from the inside through the cutout 122a.
단턱부(123)는 조임 부재(120)가 본체(110)의 삽입구 내측으로 일정 이상 삽입되는 것을 방지하고, 조임 부재(120)가 이후에 설명할 캡 너트(130)의 관통공(132)을 통해 외부로 이탈되는 것을 방지하기 위한 것이다. 그리고 상기 관통공(121)에서 경사면(122)에 대응하는 내주면에는 예컨대 톱니 형상의 스토퍼(124)가 형성되고, 단턱부(123)에 대응하는 내주면에는 오링(126)이 구비된다. 오링(126)의 설치 위치에는 바람직하게 오링홈이 구비된다.The stepped portion 123 prevents the fastening member 120 from being inserted into the insertion hole of the main body 110 more than a predetermined time, and the fastening member 120 has a through hole 132 of the cap nut 130 to be described later. This is to prevent the departure from the outside. In the through hole 121, for example, a saw-shaped stopper 124 is formed on the inner circumferential surface corresponding to the inclined surface 122, and an O-ring 126 is provided on the inner circumferential surface corresponding to the stepped portion 123. The installation position of the O-ring 126 is preferably provided with an O-ring groove.
상기 스토퍼(124)는 경사면(122)이 내향 방향으로 압축될 때 스토퍼(124)의 톱니 부분이 파이프(100)의 외주면을 강하게 압박하거나 파고듦으스로써 조임 부재(120)와 파이프(100) 사이의 밀착력을 증가시키기 위한 것이다. 또한 상기 오링(126)은 조임 부재(120)의 내주면과 파이프(100)의 외주면 사이를 통해 유체가 외부로 누출되는 것을 보다 확실하게 방지하기 위한 것이다.The stopper 124 is formed between the tightening member 120 and the pipe 100 by the teeth of the stopper 124 strongly pressing or digging the outer circumferential surface of the pipe 100 when the inclined surface 122 is compressed inward. To increase the adhesion of the. In addition, the O-ring 126 is to more reliably prevent the fluid from leaking to the outside through the inner circumferential surface of the tightening member 120 and the outer circumferential surface of the pipe 100.
캡 너트(130)는 조임 부재(120)를 본체(110)의 삽입구 내측에 체결하기 위한 것이다. 캡 너트(130)의 일측 내주면에는 캡 너트(130)를 본체(110) 나사부(111)에 체결하기 위한 나사부(131)가 형성되고, 타측에는 파이프(100)가 관통되면서 삽입되는 관통공(132)이 구비된다. 그리고 이 관통공(132)의 내주면에는 선택적으로 오링(133)이 구비된다. 이 경우에도 오링(133)의 설치 위치에는 바람직하게 오링홈이 형성된다. 오링(132)은 캡 너트(130)와 파이프(100)를 통해서 유체가 누출되는 것을 보다 확실하게 방지하기 위한 것이다.The cap nut 130 is for fastening the tightening member 120 to the inside of the insertion hole of the main body 110. One side inner circumferential surface of the cap nut 130 is formed with a threaded portion 131 for fastening the cap nut 130 to the threaded portion 111 of the main body 110, and a through-hole 132 inserted into the other side while the pipe 100 is penetrated. ) Is provided. And the O-ring 133 is selectively provided on the inner circumferential surface of the through hole 132. Also in this case, the O-ring groove is preferably formed at the installation position of the O-ring 133. The o-ring 132 is for more reliably preventing the fluid from leaking through the cap nut 130 and the pipe 100.
상기한 파이프 연결장치에 파이프(100)를 체결하는 경우에는 캡 너트(130)의 내측에 조임 부재(120)를 배치한 상태에서 캡 너트(130)의 나사부(131) 선단측을 본체(110)의 나사부(111)에 결합시킨다. 그리고 캡 너트(130)와 조임 부재(120)의 관통공(132, 121)을 통해 파이프(100)를 삽입시킨다. 파이프(100)의 삽입은 파이프(100)의 선단부가 본체(110)의 오링(113) 위치에 도달될 때까지 실행된다. 이후 캡 너트(130)를 조여서 캡 너트(130)를 본체(110)의 나사부(111)에 견고하게 체결한다. When the pipe 100 is fastened to the pipe connecting device as described above, the tip end side of the threaded portion 131 of the cap nut 130 is disposed in the cap nut 130 in the main body 110. To the threaded portion 111 of the. The pipe 100 is inserted through the through holes 132 and 121 of the cap nut 130 and the fastening member 120. Insertion of the pipe 100 is performed until the leading end of the pipe 100 reaches the O-ring 113 position of the body 110. Thereafter, the cap nut 130 is tightened to firmly fasten the cap nut 130 to the threaded portion 111 of the main body 110.
캡 너트(130)를 나사부(111)에 체결하게 되면 캡 너트(130)의 체결이 진행되면서 조임 부재(120)의 경사면(122)이 본체(110)의 테이퍼부(112)를 따라 슬라이드 이동되면서 경사면(122)이 내향 방향으로, 즉 파이프(100)의 외주면 방향으로 가압된다.When the cap nut 130 is fastened to the screw part 111, the inclined surface 122 of the fastening member 120 slides along the tapered part 112 of the main body 110 while the cap nut 130 is fastened. The inclined surface 122 is pressed inward, that is, in the direction of the outer circumferential surface of the pipe 100.
도 3 내지 도 5에 나타낸 종래 구성에 있어서는 조임 부재(40)가 폭이 넓은 링 형상으로 이루어짐과 더불어 양 단부에 요홈(41, 42)이 형성된다. 주지된 바와 같이 요홈(41, 42)은 조임 부재(40)의 내경이 축소되어야 하는 것을 고려한 것이다. 그러나 상기한 조임 부재(40)는 양 단부에만 요홈(41, 42)이 형성되므로 외력을 이용하여 조임 부재(40)의 내경을 축소키시는 경우 구조적으로 중앙부(40a)의 내경은 그대로 유지되면서 양 단부의 내경만이 축소될 것이다. 그리고 이를 위해서는 조임 부재(40)에 전체적으로 뒤틀림 현상이 발생되어야 한다. 다시 말하면 종래의 조임 부재(40)는 그 내경을 축소시키기 위해서는 조임 부재(40)를 전체적으로 뒤틀면서 내향 방향으로 압축해야 하므로 조임 부재(40)를 압축할 때 상당히 큰 조임력이 요구된다. 즉, 나사 접속부(20b)에 캡 너트(30)를 체결하는데 큰 힘이 요구된다. 그리고 이는 작업자의 작업 효율을 저하시킴은 물론 조임 부재(40)와 파이프 사이의 결합력을 저하시키는 요인으로 작용하게 된다.In the conventional configuration shown in FIGS. 3 to 5, the tightening member 40 has a wide ring shape, and grooves 41 and 42 are formed at both ends. As is well known, the grooves 41 and 42 consider that the inner diameter of the tightening member 40 should be reduced. However, since the recesses 41 and 42 are formed only at both ends of the tightening member 40, when the inner diameter of the tightening member 40 is reduced by using an external force, the inner diameter of the central portion 40a is structurally maintained as it is. Only the inner diameter of the end will be reduced. And to this end, the entire twisting phenomenon should be generated in the tightening member 40. In other words, the conventional tightening member 40 is required to compress the tightening member 40 in the inward direction while twisting the tightening member 40 as a whole in order to reduce the inner diameter is required a very large tightening force when compressing the tightening member 40. That is, a large force is required to fasten the cap nut 30 to the screw connection part 20b. And this will not only reduce the work efficiency of the operator but also acts as a factor to lower the coupling force between the tightening member 40 and the pipe.
본 실시 예에 있어서는 조임 부재(120)의 경사면(122)이 전체적으로 일방향으로 경사지게 형성되고, 경사면(122)을 따라 전체적으로 절개홈(122a)이 형성된다. 따라서 경사면(122)을 내향 방향으로 압축하는 경우 특별히 큰 외력이 요구되지 않는다. 특히 절개홈(122a)이 길이 방향에 대해 일정한 경사각을 갖도록 형성되므로 조임 부재(120)의 회전에 따라 경사면(122)은 더욱 용이하면서 긴밀하게 내향 방향으로 압축될 수 있게 된다. 그리고 경사면(122)이 내향 방향으로 압축되면서 경사면(122)의 내주면에 설치되는 스토퍼(124)가 파이프(100)의 외주면을 강하게 압박하게 되므로 조임 부재(120)와 파이프(100)가 매우 강하게 결합되게 된다.In this embodiment, the inclined surface 122 of the tightening member 120 is formed to be inclined in one direction as a whole, and the incision grooves 122a are formed as a whole along the inclined surface 122. Therefore, when compressing the inclined surface 122 inward direction, no particularly large external force is required. In particular, since the incision groove 122a is formed to have a constant inclination angle with respect to the longitudinal direction, the inclined surface 122 can be more easily and tightly compressed inwardly in accordance with the rotation of the tightening member 120. The stopper 124 installed on the inner circumferential surface of the inclined surface 122 strongly compresses the outer circumferential surface of the pipe 100 while the inclined surface 122 is compressed inwardly, so that the fastening member 120 and the pipe 100 are very strongly coupled. Will be.
또한 상기 실시 예에서는 본체(110)의 삽입구 내측에 오링(113)이 설치되므로 파이프(100)를 통해 유동되는 유체가 파이프(100)와 본체(110)와의 결합면을 통해 외부로 누출되는 것이 일차적으로 차단된다.In addition, in the above embodiment, since the O-ring 113 is installed inside the insertion hole of the main body 110, the fluid flowing through the pipe 100 leaks to the outside through the coupling surface between the pipe 100 and the main body 110. Is blocked.
또한 오링(114)은 본체(110)의 테이퍼부(112)에 형성된다. 테이퍼부(112)는 캡 너트(130)를 체결할 때 조임 부재(120)의 경사면(122)을 압박하여 내향 방향으로 조임력을 가하게 된다. 따라서 상기 오링(144)은 테이퍼부(112)가 조임 부재(120)를 압박할 때 조임 부재(120)의 외주면에 최대한 압박되어 밀착되므로 오링(113)을 통해서 유체의 누출이 발생되더라도 그 유체가 본체(110)의 내주면과 조임 부재(120)의 외주면 사이를 통해 외부로 누축되는 것이 완벽하게 차단되게 된다.In addition, the O-ring 114 is formed on the tapered portion 112 of the main body 110. The taper part 112 applies a tightening force in the inward direction by pressing the inclined surface 122 of the tightening member 120 when the cap nut 130 is fastened. Therefore, the O-ring 144 is pressed against the outer circumferential surface of the tightening member 120 as much as possible when the taper 112 presses the tightening member 120, and thus the fluid may be leaked through the O-ring 113. Compression to the outside through the inner circumferential surface of the main body 110 and the outer circumferential surface of the tightening member 120 is completely blocked.
또한 상기 실시 예에서 조임 부재(120)의 내주면과 캡 너트(130)의 내주면에 각각 오링(126, 133)이 설치되므로 오링(113)을 통해서 유체의 누출이 발생되더라도 그 유체가 파이프(100)의 외주면과 조임 부재(120) 및 캡 너트(130)의 내주면을 통해서 외부로 유출되는 것이 완벽하게 차단되게 된다.In addition, in the above embodiment, since the O- rings 126 and 133 are installed on the inner circumferential surface of the tightening member 120 and the inner circumferential surface of the cap nut 130, respectively, even if the fluid leaks through the O-ring 113, the fluid is pipe 100. Outflow through the outer circumferential surface and the inner circumferential surface of the tightening member 120 and the cap nut 130 is completely blocked.
도 10과 도 11은 상술한 제1 실시 예의 변형 실시 예에 따른 파이프 연결장치의 구조를 나타낸 도면으로서, 도 10은 파이프 연결장치의 분해 단면도, 도 11은 파이프 연결장치에 파이프를 결합한 상태에서의 단면도이다. 또한 도면에서 상술한 실시 예와 실질적으로 동일한 부분에는 동일한 참조번호를 붙이고 그 상세한 설명은 생략한다.10 and 11 are views showing the structure of a pipe connecting apparatus according to a modified embodiment of the first embodiment described above, FIG. 10 is an exploded cross-sectional view of the pipe connecting apparatus, and FIG. 11 is a state in which a pipe is coupled to the pipe connecting apparatus. It is a cross section. In addition, the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
본 실시 예에서는 조임 부재(120)와 캡 너트(130)의 사이에 압박링(140)이 구비된다. 그리고 조임 부재(120)에는 캡 너트(130)와의 결합 방향으로 상기 압박링(140)을 오링(126)과 연통되도록 결합하기 위한 제1 결합공(121a)이 구비되고, 캡 너트(130)에는 조임 부재(120)와의 결합 방향으로 상기 압박링(140)을 오링(133)과 연통되도록 결합하기 위한 제2 결합공(132a)이 구비된다.In this embodiment, the pressing ring 140 is provided between the tightening member 120 and the cap nut 130. And the fastening member 120 is provided with a first coupling hole 121a for coupling the pressing ring 140 to communicate with the O-ring 126 in the coupling direction with the cap nut 130, the cap nut 130 is provided A second coupling hole 132a for coupling the pressing ring 140 to communicate with the O-ring 133 in the coupling direction with the tightening member 120 is provided.
본 실시 예에 있어서는 본체(110)에 조임 부재(120)와 캡 너트(130)를 체결할 때 조임 부재(120)와 캡 너트(130)의 사이에 압박링(140)을 배치하게 된다. 압박링(140)은 조임 부재(120)와 캡 너트(130)의 제1 및 제2 결합공(121a, 132a)에 안착된다. 상기 압박링(140)은 본체(110)에 조임 부재(120)와 캡 너트(130)가 체결되었을 때 오링(126, 133)을 충분히 압박할 수 있을 정도로 그 폭이 설정된다. 압박링(140)이 오링(126, 133)을 수평 방향으로 압박하게 되면 오링(126, 133)은 수직 방향, 즉 내향 방향으로 신장되면서 내경이 좁아지게 된다. 따라서 본 실시 예에서는 오링(126, 133)과 파이프(100) 사이의 밀착력이 대폭 상승함으로써 조임 부재(120) 및 캡 너트(130)의 내주면과 파이프(100)의 외주면 사이의 기밀력이 더욱 향상되게 된다.In this embodiment, when the fastening member 120 and the cap nut 130 are fastened to the main body 110, the pressing ring 140 is disposed between the fastening member 120 and the cap nut 130. The pressing ring 140 is seated in the first and second coupling holes 121a and 132a of the tightening member 120 and the cap nut 130. The pressing ring 140 is set to a width such that when the tightening member 120 and the cap nut 130 are fastened to the main body 110, the pressing rings 140 can sufficiently press the O- rings 126 and 133. When the pressing ring 140 presses the O- rings 126 and 133 in the horizontal direction, the O- rings 126 and 133 extend in the vertical direction, that is, the inward direction, and the inner diameter thereof is narrowed. Therefore, in this embodiment, the adhesion between the O- rings 126 and 133 and the pipe 100 is greatly increased, thereby further improving the airtight force between the inner circumferential surface of the tightening member 120 and the cap nut 130 and the outer circumferential surface of the pipe 100. Will be.
도 12 내지 도 16은 본 발명의 제2 실시 예에 따른 파이프 연결장치의 구조를 나타낸 도면으로서, 도 12는 파이프 연결장치의 일부 단면 분해 사시도, 도 13은 도 12에 대응하는 분해 단면도, 도 14는 도 12에서 조임 부재(220)의 외관 형상을 나타낸 일부 단면 사시도, 도 15는 도 12에서 가압 부재(230)의 일부 단면 사시도, 도 16은 파이프 연결장치에 파이프를 결합한 상태에서의 단면도이다.12 to 16 is a view showing the structure of a pipe connecting apparatus according to a second embodiment of the present invention, Figure 12 is a partial cross-sectional exploded perspective view of the pipe connecting device, Figure 13 is an exploded cross-sectional view corresponding to Figure 12, Figure 14 12 is a partial cross-sectional perspective view showing an appearance of the tightening member 220 in FIG. 12, FIG. 15 is a partial cross-sectional perspective view of the pressing member 230 in FIG. 12, and FIG. 16 is a cross-sectional view in a state in which a pipe is coupled to a pipe connecting device.
또한 본 실시 예는 파이프(100)가 결합되는 삽입구가 3개 구비되면서 이들 삽입구가 내부적으로 서로 연통되도록 구성되는 T형 파이프 연결구에 본 발명을 적용시킨 경우를 예로 들어 나타낸 것이다. 또한 본 실시 예에서 3개의 파이프 삽입구에 대한 각각의 파이프 연결 구조는 실질적으로 동일하므로 하나의 파이프 삽입구에 대한 연결구조에 대해서만 구체적으로 설명한다.In addition, the present embodiment shows a case in which the present invention is applied to the T-shaped pipe connector which is configured to be in communication with each other internally while the three insertion ports are provided with the pipe 100 is shown as an example. In addition, in the present embodiment, since each pipe connection structure for the three pipe insertion holes is substantially the same, only a connection structure for one pipe insertion hole will be described in detail.
도면에서 본 실시 예에 따른 파이프 연결장치는 본체(210)와 조임 부재(220), 가압 부재(230) 및 캡 너트(240)를 구비하여 구성된다.In the drawings, the pipe connecting device according to the embodiment includes a main body 210, a fastening member 220, a pressing member 230, and a cap nut 240.
본체(210)는 파이프(100)를 삽입하기 위한 적어도 1개의 삽임구(211)를 구비한다. 삽입구(211)의 안쪽 내주면에는 이후에 설명할 조임 부재(220)를 내향 방향, 즉 파이프(100)의 외주면 방향으로 가압하기 위한 제1 경사부(212)가 구비되고, 삽입구(211)의 입구?P 내주면에는 캡 너트(240)를 체결하기 위한 나사부(213)가 구비된다.The body 210 has at least one insertion hole 211 for inserting the pipe 100. The inner circumferential surface of the insertion hole 211 is provided with a first inclined portion 212 for pressing the tightening member 220 to be described later inward, that is, the outer circumferential surface direction of the pipe 100, the inlet of the insertion hole 211 ? P inner peripheral surface is provided with a screw portion 213 for fastening the cap nut 240.
조임 부재(220)는 예컨대 스프링강으로 이루어진다. 도 14에서 보다 명확하게 이해될 수 있는 바와 같이 조임 부재(220)는 링 형상으로 이루어짐과 더불어 중간 부분에 절개부(221)가 구비된다. 이 절개부(221)에 의해 조임 부재(220)는 외부 압력에 의해 용이하게 압축되어 내경이 축소된다. 조임 부재(220)의 외주면에는 중앙부(222)를 기준으로 하여 양단부로 갈수록 내향 방향으로 경사지는 경사면(223, 224)이 구비된다. 이들 경사면(223, 224)은 상기 제1 경사부(212)와 이후에 설명할 제2 경사부(232)에 대응하는 것이다. 경사면(223, 224)은 각각 제1 및 제2 경사부(212, 232)와 서로 접촉되고, 제2 경사부(232)가 수평 방향, 즉 파이프(100)의 길이 방향을 따라 삽입구(211) 내측으로 이동되면 제1 및 제2 경사부(212, 232)의 경사면을 따라 내향 방향, 즉 파이프(100)의 외주면 방향으로 슬라이드 이동하게 된다. 이에 따라 조임 부재(220)는 내향 방향으로 압축된다.The tightening member 220 is made of spring steel, for example. As can be more clearly understood in FIG. 14, the tightening member 220 is formed in a ring shape, and an incision 221 is provided at an intermediate portion thereof. By this cutout 221, the tightening member 220 is easily compressed by external pressure, and the inner diameter is reduced. The outer circumferential surface of the tightening member 220 is provided with inclined surfaces 223 and 224 which are inclined inwardly toward both ends with respect to the center portion 222. These inclined surfaces 223 and 224 correspond to the first inclined portion 212 and the second inclined portion 232 to be described later. The inclined surfaces 223 and 224 are in contact with the first and second inclined portions 212 and 232, respectively, and the second inclined portions 232 are inserted into the insertion hole 211 along the horizontal direction, that is, the length direction of the pipe 100. When moved inwardly, the inclined surfaces of the first and second inclined portions 212 and 232 slide inwardly, that is, in the direction of the outer circumferential surface of the pipe 100. Accordingly, the tightening member 220 is compressed in the inward direction.
또한 조임 부재(220)의 내주면에는 예컨대 톱니 형상의 스토퍼(225)가 설치된다. 이 스토퍼(225)는 제1 실시 예와 마찬가지로 조임 부재(220)가 내향 방향으로 압축될 때 스토퍼(225)의 톱니 부분이 파이프(100)의 외주면을 강하게 압박하거나 파고듦으로써 조임 부재(220)와 파이프(100) 사이의 밀착력을 증가시키게 된다. 본 실시 예에서 스토퍼(225)의 구조는 특정한 것에 한정되지 않고 조임 부재(220)와 파이프(100) 사이의 밀착력을 향상시킬 수 있는 어떠한 구조도 동일한 방식으로 채용할 수 있다.In addition, a sawtooth stopper 225 is provided on the inner circumferential surface of the tightening member 220, for example. Similar to the first embodiment, the stopper 225 is fastened to the tightening member 220 when the teeth of the stopper 225 presses or digs the outer circumferential surface of the pipe 100 when the tightening member 220 is compressed inward. And increase the adhesion between the pipe 100. In the present embodiment, the structure of the stopper 225 is not limited to a specific one, and any structure capable of improving the adhesion between the tightening member 220 and the pipe 100 may be adopted in the same manner.
가압 부재(230)는 조임 부재(220)와 캡 너트(240)의 사이에 배치된다. 가압 부재(230)는 도 15에서 보다 명확하게 이해할 수 있는 바와 같이 중심 부분에 파이프(100)를 삽입하기 위한 관통공(231)이 설치되고, 선단부에는 제2 경사부(232)가 구비된다. 제2 경사부(232)는 조임 부재(220)의 경사면(224)에 대응하여 선단 측으로 가면서 외향 방향, 즉 파이프(100)의 외주면 측과 반대 방향으로 경사지는 형상으로 이루어진다.The pressing member 230 is disposed between the tightening member 220 and the cap nut 240. As can be clearly understood in FIG. 15, the pressing member 230 is provided with a through hole 231 for inserting the pipe 100 in the center portion thereof, and a second inclined portion 232 is provided at the tip portion thereof. The second inclined portion 232 is configured to be inclined in an outward direction, that is, in a direction opposite to the outer circumferential surface side of the pipe 100, corresponding to the inclined surface 224 of the tightening member 220.
가압 부재(230)의 외주면에는 오링홈(233)이 설치되고, 여기에 오링(233a)이 설치된다. 오링(233a)은 가압 부재(230)의 상면과 삽입구(211)의 내주면 사이를 기밀하기 위한 것이다. 그리고 오링홈(233)의 후단에는 단차부(234)가 형성된다. 이 단차부(234)는 삽입구(211)의 내주면과 함께 가압 부재(230)의 후단으로부터 오링(233a)으로 연통되는 가이드홈을 구성하게 된다. 이후에 설명하는 바와 같이 이 단차부(234)에는 캡 너트(240)의 제2 가압 돌기(243)가 진입된다. 그리고 관통공(231) 내주면 후단에는 제1 가압 돌기(235)가 형성된다. 제1 가압 돌기(235)는 캡 너트(240)의 오링(244a)을 가압하기 위한 것이다.O-ring groove 233 is installed on the outer circumferential surface of the pressing member 230, the O-ring 233a is installed. The o-ring 233a is for hermetic sealing between the upper surface of the pressing member 230 and the inner circumferential surface of the insertion hole 211. And the step portion 234 is formed at the rear end of the O-ring groove 233. The stepped portion 234 constitutes a guide groove communicating with the O-ring 233a from the rear end of the pressing member 230 together with the inner circumferential surface of the insertion hole 211. As described later, the second pressing protrusion 243 of the cap nut 240 enters the stepped portion 234. A first pressing protrusion 235 is formed at the rear end of the inner circumferential surface of the through hole 231. The first pressing protrusion 235 is for pressing the O-ring 244a of the cap nut 240.
캡 너트(240)는 중심 부분에 파이프(100)를 삽입하기 위한 관통공(241)이 형성되고 외주면에는 캡 너트(240)를 본체(210)에 체결하기 위한 나사부(242)가 구비된다. 이 나사부(242)는 본체(210)의 나사부(213)와 체결된다. 캡 너트(240)의 선단측에는 가압 부재(230)의 오링(233a)을 가압하기 위한 제2 가압 돌기(243)가 구비된다.The cap nut 240 has a through hole 241 for inserting the pipe 100 in a central portion thereof, and a threaded portion 242 for fastening the cap nut 240 to the main body 210 is provided on an outer circumferential surface thereof. The screw portion 242 is fastened to the screw portion 213 of the main body 210. A second pressing protrusion 243 for pressing the O-ring 233a of the pressing member 230 is provided at the front end side of the cap nut 240.
또한 관통공(241)의 내주면에는 오링홈(244)이 설치된다. 이 오링홈(244)에는 오링(244a)이 설치된다. 오링(244a)은 관통공(241)의 내주면과 파이프(100)의 외주면 사이를 기밀하기 위한 것이다. 그리고 오링(244a)의 선단측에는 단차부(245)가 형성된다. 이 단차부(245)는 파이프(100)의 외주면과 함께 캡 너트(240)의 전단으로부터 오링(244a)으로 연통되는 가이드홈을 구성하게 된다. 이 가이드홈에는 가압 부재(230)의 제1 가압 돌기(235)가 진입된다.In addition, an O-ring groove 244 is installed on the inner circumferential surface of the through hole 241. The O-ring groove 244 is provided with an O-ring 244a. The o-ring 244a is for sealing between the inner circumferential surface of the through hole 241 and the outer circumferential surface of the pipe 100. And the step part 245 is formed in the front end side of the O-ring 244a. The stepped portion 245 constitutes a guide groove communicating with the outer ring of the pipe 100 to the O-ring 244a from the front end of the cap nut 240. The first pressing protrusion 235 of the pressing member 230 enters the guide groove.
이어 본 실시 예에 따른 파이프 연결장치를 이용하여 파이프(100)를 체결하는 동작을 설명한다.Next, an operation of fastening the pipe 100 using the pipe connecting device according to the present embodiment will be described.
파이프 연결장치에 파이프(100)를 체결하는 경우에는 파이프(100)의 외측에 캡 너트(240)와 가압 부재(230) 및 조임 부재(220)를 순차적으로 배치한 상태에서 파이프(100)의 선단부를 본체(210)의 삽입구(211)에 삽입한 후 캡 너트(240)의 나사부(242)를 본체(210)의 나사부(213)에 체결하게 된다. 캡 너트(240)를 체결함에 따라 조임 부재(220)와 가압 부재(230)는 삽입구(211)의 내측 방향으로 이동하게 된다. 이러한 이동에 의해 조임 부재(220)의 경사면(223)이 본체(210)의 제1 경사부(212)와 접촉하게 되면 조임 부재(220)의 선단부가 제1 경사부(212)를 따라 내향 방향으로 슬라이드 이동하게 되고, 또한 가압 부재(230)의 제2 경사부(232)가 조임 부재(220)의 경사면(224)을 따라 외향 방향으로 슬라이드 이동하게 됨으로써 조임 부재(220)는 내향 방향으로 가압된다,When the pipe 100 is fastened to the pipe connecting device, the cap nut 240, the pressing member 230, and the fastening member 220 are sequentially disposed on the outside of the pipe 100, and the front end of the pipe 100 is disposed. Is inserted into the insertion hole 211 of the main body 210, and then the screw 242 of the cap nut 240 is fastened to the screw 213 of the main body 210. As the cap nut 240 is fastened, the fastening member 220 and the pressing member 230 move inwardly of the insertion hole 211. When the inclined surface 223 of the tightening member 220 comes into contact with the first inclined portion 212 of the main body 210 by this movement, the tip portion of the tightening member 220 is inwardly directed along the first inclined portion 212. And the second inclined portion 232 of the pressing member 230 slides in an outward direction along the inclined surface 224 of the tightening member 220, so that the tightening member 220 is pressed inward. do,
조임 부재(220)가 가압되면 절개부(221)의 절개 폭이 축소되면서 조임 부재(220)의 내경이 작아지게 되고, 이에 따라 조임 부재(220)는 파이프(100)의 외주면에 강한 조임력을 가하게 된다. 그리고 이에 따라 조임 부재(220) 내주면에 구비되는 스토퍼(225)의 톱니 부분이 파이프(100)의 외주면을 강하게 압박하거나 파고듦으스로써 조임 부재(220)와 파이프(100)가 강하게 결합된다.When the tightening member 220 is pressurized, the cutting width of the cutout portion 221 is reduced and the inner diameter of the tightening member 220 is reduced, whereby the tightening member 220 exerts a strong tightening force on the outer circumferential surface of the pipe 100. do. As a result, the teeth of the stopper 225 provided on the inner circumferential surface of the tightening member 220 strongly press or dig the outer circumferential surface of the pipe 100 so that the tightening member 220 and the pipe 100 are strongly coupled to each other.
또한 가압 부재(230)가 조임 부재(220)를 가압하는 상태에서는 캡 너트(240)의 제2 가압 돌기(243)가 가압 부재(230)의 단차부(234)와 삽입구(211) 내주면이 형성하는 가이드홈을 따라 오링(233a)을 수평 방향, 즉 파이프 길이방향으로 가압하게 되므로 오링(233a)이 수평 방향으로 압축되고, 이어 오링(233a)의 수평 방향의 폭이 좁아지면서 수직 방향으로 두께가 증가하게 된다. 따라서 가압 부재(230)의 외주면과 삽입구(211) 내주면 사이의 기밀력이 대폭 증가하게 된다.In addition, in the state where the pressing member 230 presses the tightening member 220, the second pressing protrusion 243 of the cap nut 240 is formed with the stepped portion 234 of the pressing member 230 and the inner circumferential surface of the insertion hole 211. Since the O-ring 233a is pressed in the horizontal direction, that is, the pipe length direction along the guide groove, the O-ring 233a is compressed in the horizontal direction, and the width of the O-ring 233a in the horizontal direction is narrowed, and the thickness in the vertical direction is reduced. Will increase. Therefore, the airtight force between the outer peripheral surface of the pressing member 230 and the inner peripheral surface of the insertion hole 211 is greatly increased.
그리고 이와 더불어 가압 부재(220)의 제1 가압 돌기(235)가 캡 너트(240)의 단차부(245)와 파이프(100) 외주면이 형성하는 가이드홈을 따라 오링(244a)을 수평 방향으로 가압하게 되므로 오링(244a)의 수직 방향으로의 두께가 증가되어 캡 너트(240)의 내주면과 파이프(100)의 외주면 사이의 기밀력이 대폭 증가하게 된다.In addition, the first pressing protrusion 235 of the pressing member 220 presses the O-ring 244a in the horizontal direction along the guide groove formed by the stepped portion 245 of the cap nut 240 and the outer circumferential surface of the pipe 100. Since the thickness of the O-ring 244a in the vertical direction is increased, the airtight force between the inner circumferential surface of the cap nut 240 and the outer circumferential surface of the pipe 100 is greatly increased.
또한, 상기한 과정을 통해 체결된 파이프(100)를 본체(210)로부터 분리하는 경우에는 본체(210)에 대해 캡 너트(240)를 해제 방향으로 회전시켜 조임 부재(220)에 가해지는 가압력을 해제하게 된다. 조임 부재(220)는 가압 부재(230)에 의한 가압력이 제거되면 자체 탄성력에 의해 경사면(223)이 제1 경사부(212)를 상술한 동작과 역방향으로 슬라이드 이동하면서 내경이 원래의 크기로 복원되게 된다. 따라서 조임 부재(220)와 파이프(100) 사이의 결합력이 해제됨으로써 파이프(100)를 본체(210)로부터 용이하게 이탈시킬 수 있게 된다.In addition, in the case where the pipe 100 fastened through the above-described process is separated from the main body 210, the pressing force applied to the fastening member 220 is rotated with respect to the main body 210 by rotating the cap nut 240 in the release direction. Will be released. When the pressing member 220 removes the pressing force by the pressing member 230, the inclined surface 223 slides the first inclined portion 212 in the opposite direction to the above-described operation by its elastic force, and the inner diameter is restored to its original size. Will be. Therefore, the coupling force between the tightening member 220 and the pipe 100 is released, so that the pipe 100 can be easily separated from the main body 210.
본 실시 예에 있어서는 우선 조임 부재(220)에 절개부(221)가 구비되므로 약간의 가압력만으로 조임 부재(220)의 내경을 용이하게 축소시킬 수 있게 된다. 따라서 캡 너트(240)를 본체(210)에 체결하는데 큰 힘이 요구되지 않으므로 작업자의 작업 효율을 향상시킬 수 있게 된다.In the present embodiment, first, since the cutout 221 is provided in the fastening member 220, the inner diameter of the fastening member 220 can be easily reduced with only a slight pressing force. Therefore, since a large force is not required to fasten the cap nut 240 to the main body 210, the working efficiency of the worker can be improved.
또한 가압 부재(230)에 의해 조임 부재(220)가 가압되는 상태에서는 가압 부재(230)의 외주면에 구비되는 오링(233a)과 캡 너트(240)의 내주면에 구비되는 오링(244a)이 파이프(100)의 길이 방향을 따라 압축되어 오링(233a, 244a)의 수직 방향으로의 두께가 최대한도로 확대되므로 본체(210)와 파이프(100) 사이의 기밀력이 대폭 향상된다.In addition, when the tightening member 220 is pressed by the pressing member 230, the O-ring 233a provided on the outer circumferential surface of the pressing member 230 and the O-ring 244a provided on the inner circumferential surface of the cap nut 240 are pipes ( Since the thickness of the O- rings 233a and 244a is vertically enlarged to the maximum, the airtight force between the main body 210 and the pipe 100 is greatly improved.
도 17 내지 도 19는 본 발명의 제3 실시 예에 따른 파이프 연결장치를 나타낸 도면으로서, 도 17은 그 일부 단면 분해 사시도이고, 도 18은 도 17에서 조임 부재(320)의 일부 단면 사시도, 도 19는 파이프 연결장치에 파이프(100)를 체결한 경우의 단면도이다. 또한 도면에서 상술한 실시 예와 실질적으로 동일한 부분에는 동일한 참조번호를 붙이고 그 상세한 설명은 생략한다.17 to 19 is a view showing a pipe connecting apparatus according to a third embodiment of the present invention, Figure 17 is a partial cross-sectional exploded perspective view, Figure 18 is a partial cross-sectional perspective view of the tightening member 320 in Figure 17, 19 is a sectional view when the pipe 100 is fastened to the pipe connecting device. In addition, the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
본 실시 예에서 파이프 연결장치는 상술한 실시 예와 마찬가지로 본체(210)와 조임 부재(320), 가압 부재(230) 및 캡 너트(240)를 구비하여 구성된다. 여기서 본체(210)와 가압 부재(230) 및 캡 너트(240)는 상술한 실시 예와 실질적으로 동일하다.In the present embodiment, the pipe connecting device includes the main body 210, the fastening member 320, the pressing member 230, and the cap nut 240, as in the above-described embodiment. Here, the main body 210, the pressing member 230, and the cap nut 240 are substantially the same as the above-described embodiment.
본 실시 예에서 조임 부재(320)는 상술한 실시 예와 마찬가지로 링 형상으로 이루어짐과 더불어 중간 부분에 절개부(321)가 구비된다. 그리고 조임 부재(320)의 외주면에는 중앙부(322)를 기준으로 하여 양단부로 갈수록 내향 방향으로 경사지는 경사면(323, 324)이 구비된다.In this embodiment, the tightening member 320 is formed in a ring shape like the above-described embodiment, and is provided with a cutout 321 at an intermediate portion. The outer circumferential surface of the fastening member 320 is provided with inclined surfaces 323 and 324 which are inclined inwardly toward both ends with respect to the center portion 322.
한편 본 실시 예에서 조임 부재(320)의 내주면에는 원호 방향을 따라 홈(325)이 형성된다. 이 홈(325)은 제2 실시 예에서의 스토퍼(225)에 대응하는 것이다.Meanwhile, in the present embodiment, the groove 325 is formed along the arc direction on the inner circumferential surface of the tightening member 320. This groove 325 corresponds to the stopper 225 in the second embodiment.
도 19에서 본체(210)의 삽입구(211)에 파이프(100)를 삽입한 후 캡 너트(240)를 본체(210)에 체결하게 되면 상술한 실시 예와 마찬가지로 조임 부재(320)가 내향 방향으로 압축되면서 조임 부재(320)의 내경이 축소되게 되고, 이에 따라 조임 부재(320)와 파이프(100) 사이의 결합력이 높아지게 된다. 특히 본 실시 예에서는 조임 부재(320)의 내주면에 홈(325)이 구비된다. 따라서 조임 부재(320)에 내향 방향으로 가해지는 가압력이 높아지게 되면 홈(325)이 내향 방향으로 눌려지면서 파이프(100)와 인접하는 홈(325)의 폭이 타측에 비해 넓어지게 된다. 즉, 조임 부재(320)의 외주면 폭에 비해 내주면의 폭이 넓어지게 된다. 그리고 조임 부재(320)의 내주면 폭이 넓어지게 되면 조임 부재(320)의 내주면과 파이프(100)의 외주면 사이의 접촉 부위가 홈(325)의 내부 모서리 부분으로 한정되게 된다. 이에 따라 홈(325)의 내부 모서리 부분이 파이프(100)의 외주면을 강하게 압박하거나 파고 듦으로써 조임 부재(320)와 파이프(100)의 결합력이 더욱 높아지게 된다.In FIG. 19, when the pipe nut 100 is inserted into the insertion hole 211 of the main body 210, and then the cap nut 240 is fastened to the main body 210, the tightening member 320 is moved inward in the same manner as in the above-described embodiment. As the inner diameter of the tightening member 320 is reduced while being compressed, the coupling force between the tightening member 320 and the pipe 100 is increased. In particular, in the present embodiment, the groove 325 is provided on the inner circumferential surface of the tightening member 320. Therefore, when the pressing force applied in the inward direction to the tightening member 320 increases, the width of the groove 325 adjacent to the pipe 100 becomes wider than the other side while the groove 325 is pressed inward. That is, the width of the inner circumferential surface becomes wider than the width of the outer circumferential surface of the tightening member 320. And when the inner circumferential surface width of the tightening member 320 becomes wider, a contact portion between the inner circumferential surface of the tightening member 320 and the outer circumferential surface of the pipe 100 is limited to the inner edge portion of the groove 325. Accordingly, as the inner edge portion of the groove 325 strongly presses or digs the outer circumferential surface of the pipe 100, the coupling force between the tightening member 320 and the pipe 100 is further increased.
또한 홈(325)이 확대되어 조임 부재(325)의 내주면 폭이 넓어지게 되면 홈(325)의 내부 모서리 부분에는 홈(325)을 원래의 상태로 복원하려고 하는 복원력이 작용하게 된다. 그리고 이 복원력은 홈(325)이 파이프(100)의 외주면을 움켜쥐도록 하는 형상으로 작용함으로써 조임 부재(320)와 파이프(100)의 결합력은 더욱 상승되게 된다.In addition, when the groove 325 is enlarged and the inner circumferential surface width of the tightening member 325 is widened, a restoring force for restoring the groove 325 to its original state is applied to the inner edge portion of the groove 325. In addition, the restoring force acts to shape the groove 325 to grab the outer circumferential surface of the pipe 100 so that the coupling force between the tightening member 320 and the pipe 100 is further increased.
도 20 내지 도 22는 본 발명의 제4 실시 예에 따른 파이프 연결장치를 나타낸 도면으로서, 도 20은 그 일부 단면 분해 사시도이고, 도 21은 도 17에서 조임 부재(420)의 일부 단면 사시도, 도 22는 파이프 연결장치에 파이프(100)를 체결한 경우의 단면도이다. 또한 도면에서 상술한 실시 예와 실질적으로 동일한 부분에는 동일한 참조번호를 붙이고 그 상세한 설명은 생략한다.20 to 22 is a view showing a pipe connecting apparatus according to a fourth embodiment of the present invention, Figure 20 is a partial cross-sectional exploded perspective view, Figure 21 is a partial cross-sectional perspective view of the tightening member 420 in Figure 17, 22 is a cross-sectional view when the pipe 100 is fastened to the pipe connecting device. In addition, the same reference numerals are attached to substantially the same parts as the above-described embodiments in the drawings, and detailed description thereof will be omitted.
본 실시 예는 도 17 내지 도 19에 나타낸 제3 실시 예에서 조임 부재(320)와 가압 부재(230)를 일체로 구성한 것이다. 본 실시 예에서 파이프 연결장치는 본체(210)와 조임 부재(420) 및 캡 너트(240)를 구비하여 구성된다.In this embodiment, the tightening member 320 and the pressing member 230 are integrally formed in the third embodiment shown in FIGS. 17 to 19. In the present embodiment, the pipe connecting device includes a main body 210, a fastening member 420, and a cap nut 240.
조임 부재(420)는 중심 부분에 파이프(100)를 삽입하기 위한 관통공(421)이 구비된다. 그리고 선단부에는 경사면(422)이 설치됨과 더불어 내주면에 원호방향으로 홈(423)이 형성된다. 본 실시 예에서 본체(210)의 삽입구(211) 내측에는 제2 및 제3 실시 예에서의 제1 경사부(212) 대신에 단턱부(215)가 설치된다.The tightening member 420 is provided with a through hole 421 for inserting the pipe 100 in the center portion. In addition, the inclined surface 422 is installed at the tip portion, and the groove 423 is formed in the arc direction on the inner circumferential surface. In the present embodiment, the stepped portion 215 is installed inside the insertion hole 211 of the main body 210 instead of the first inclined portion 212 in the second and third embodiments.
또한 상기 실시 예에서의 가압 부재(230)와 동일한 방식으로 조임 부재(420)의 외주면에는 오링홈(424)이 설치되고, 여기에 오링(424a)이 설치된다. 오링(424a)은 조임 부재(430)의 외주면과 본체(210)의 내주면 사이를 기밀하기 위한 것이다. 또한 오링홈(424)의 후단에는 단차부(425)가 형성되고, 후단부에는 제3 가압 돌기(426)가 형성된다. 제3 가압 돌기(426)는 상술한 제1 가압 돌기(235)와 마찬가지로 캡 너트(240)의 오링(244a)을 가압하기 위한 것이다.In addition, the O-ring groove 424 is provided on the outer circumferential surface of the tightening member 420 in the same manner as the pressing member 230 in the above embodiment, the O-ring 424a is provided. The o-ring 424a is for hermetic sealing between the outer circumferential surface of the tightening member 430 and the inner circumferential surface of the main body 210. In addition, the stepped portion 425 is formed at the rear end of the O-ring groove 424, and the third pressing protrusion 426 is formed at the rear end. The third pressing protrusion 426 is for pressing the O-ring 244a of the cap nut 240 similarly to the first pressing protrusion 235 described above.
본 실시 예에서는 본체(210)에 캡 너트(240)를 체결하여 조임 부재(420)에 수평 방향, 즉 파이프 길이 방향으로 일정 이상의 압력이 가해지게 되면 가압력이 조임 부재(420)의 경사면(422) 선단부에 집중되게 된다. 따라서 조임 부재(420)의 홈(423)이 압축되면서 경사면(422)의 경사 각도가 커지는 방향으로 외력이 가해지게 된다. 경사면(422)의 경사 각도가 커지게 되면 경사면(422)의 수직 방향으로의 길이가 커지게 되는데, 이때 조임 부재(420)의 외주면은 본체(210)의 내주면에 의해 지지되므로 경사면(422)의 선단부가 파이프(100)의 외주면을 압박하면서 외주면을 파고들게 된다. 이에 따라 조임 부재(420)와 파이프(100)의 결합력이 상승하여 파이프(100)가 본체(210)로부터 용이하게 이탈되는 것이 방지되게 된다. 그리고 그 밖의 동작은 상술한 실시 예와 동일하다.In the present embodiment, when the cap nut 240 is fastened to the main body 210 so that a predetermined pressure or more is applied to the tightening member 420 in the horizontal direction, that is, the pipe length direction, the pressing force is inclined surface 422 of the tightening member 420. The tip will be concentrated. Accordingly, as the groove 423 of the tightening member 420 is compressed, an external force is applied in a direction in which the inclination angle of the inclined surface 422 increases. When the inclination angle of the inclined surface 422 increases, the length of the inclined surface 422 increases in the vertical direction. At this time, the outer circumferential surface of the fastening member 420 is supported by the inner circumferential surface of the main body 210, so that the inclined surface 422 The tip part is to dig the outer peripheral surface while pressing the outer peripheral surface of the pipe (100). Accordingly, the coupling force between the tightening member 420 and the pipe 100 is increased to prevent the pipe 100 from being easily separated from the main body 210. Other operations are the same as the above-described embodiment.
이상 설명한 바와 같이 본 발명에 의하면, 파이프 연결장치의 본체에 대한 파이프의 결합 및 해제가 용이하고, 본체에 결합되는 파이프가 임의적으로 이탈되는 것이 확실하게 방지되며, 본체와 파이프 사이의 결합 부위를 통해 유체가 누출되는 것을 확실하게 방지할 수 있는 파이프 연결장치를 구현할 수 있게 된다.As described above, according to the present invention, it is easy to engage and disengage the pipes to the main body of the pipe connecting device, and the pipes coupled to the main body are reliably prevented from being separated, and through It is possible to implement a pipe connection that can reliably prevent the leakage of fluid.
또한 본 발명은 상술한 실시 예에 한정되지 않고 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양하게 변형시켜 실시할 수 있다. In addition, the present invention is not limited to the above-described embodiments and can be carried out in various modifications without departing from the technical spirit of the present invention.

Claims (19)

  1. 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서,In a pipe connection for coupling a pipe or a pipe for flowing a fluid,
    파이프가 삽입되는 삽입구가 구비되는 본체와,A main body provided with an insertion hole into which the pipe is inserted,
    상기 삽입구의 내측에 삽입됨과 더불어 중심 부분에 파이프를 삽입하기 위한 제1 관통공이 구비되는 조임 부재 및,A fastening member inserted into the insertion hole and provided with a first through hole for inserting a pipe into a central portion thereof;
    상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고,It is configured to include a cap nut is fastened to the insertion hole of the main body and provided with a second through hole for inserting the pipe in the center portion,
    상기 본체의 삽입구 내주면에는 삽입구의 입구측으로부터 내측으로 갈수록 내경이 단조적으로 감소되는 테이퍼부가 형성되고,The inner peripheral surface of the insertion hole of the main body is formed with a tapered portion whose inner diameter monotonously decreases toward the inside from the inlet side of the insertion hole,
    상기 조임 부재는 외주면에 경사면과 단턱부가 구비되고, 상기 경사면은 조임 부재의 외경이 일단으로부터 타단으로 가면서 단조적으로 증가되도록 형성되며, 상기 경사면에는 길이 방향을 따라 2개 이상의 절개홈이 형성되며,The tightening member is provided with an inclined surface and a stepped portion on the outer circumferential surface, the inclined surface is formed such that the outer diameter of the tightening member is monotonously increased from one end to the other end, the inclined surface is formed with two or more incision grooves along the longitudinal direction,
    상기 캡 너트는 본체에 체결될 때 조임 부재를 삽입구의 내측 방향으로 가압하도록 구성되는 것을 특징으로 하는 파이프 연결장치.And the cap nut is configured to press the fastening member inwardly of the insertion hole when the cap nut is fastened to the main body.
  2. 제1항에 있어서,The method of claim 1,
    상기 삽입구의 내주면에는 테이퍼부의 양측에 제1 및 제2 오링이 설치되고, 상기 제2 오링은 상기 삽입구에 조임 부재가 삽입되었을 때 상기 절개홈의 외측에 위치하는 것을 특징으로 하는 파이프 연결장치.The inner circumferential surface of the insertion hole is provided with first and second O-rings on both sides of the tapered portion, and the second O-ring is positioned outside the cutting groove when the tightening member is inserted into the insertion hole.
  3. 제1항에 있어서,The method of claim 1,
    상기 조임 부재의 단턱부에 대응하는 관통공 내주면에는 제3 오링이 구비되는 것을 특징으로 하는 파이프 연결장치.The pipe connecting device, characterized in that the third O-ring is provided on the inner peripheral surface of the through hole corresponding to the stepped portion of the tightening member.
  4. 제3항에 있어서,The method of claim 3,
    상기 캡 너트의 관통공 내주면에는 제4 오링이 구비되는 것을 특징으로 하는 파이프 연결장치.The pipe connecting device, characterized in that the fourth O-ring is provided on the inner circumferential surface of the through hole of the cap nut.
  5. 제1항에 있어서,The method of claim 1,
    상기 절개홈은 파이프의 길이 방향에 대하여 경사지게 형성되는 것을 특징으로 하는 파이프 연결장치.The cut groove is a pipe connecting device, characterized in that formed inclined with respect to the longitudinal direction of the pipe.
  6. 제1항에 있어서,The method of claim 1,
    상기 조임 부재의 경사면에 대응하는 관통공의 내주면에는 스토퍼가 추가로 형성되는 것을 특징으로 하는 파이프 연결장치.And a stopper is further formed on the inner circumferential surface of the through hole corresponding to the inclined surface of the tightening member.
  7. 제4항에 있어서,The method of claim 4, wherein
    상기 조임 부재와 캡 너트의 사이에 압박링이 추가로 구비되고,The pressing ring is further provided between the tightening member and the cap nut,
    상기 조임 부재에는 캡 너트와의 결합 방향으로 상기 압박링을 제3 오링과 연통하기 위한 제1 결합공이 추가로 구비되며,The tightening member is further provided with a first coupling hole for communicating the pressing ring with the third O-ring in the coupling direction with the cap nut,
    상기 캡 너트에는 조임 부재와의 결합 방향으로 상기 압박링을 제4 오링과 연통하기 위한 제2 결합공이 추가로 구비되는 것을 특징으로 하는 파이프 연결장치.And the cap nut further includes a second coupling hole for communicating the pressure ring with the fourth O-ring in the direction of engagement with the tightening member.
  8. 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서,In a pipe connection for coupling a pipe or a pipe for flowing a fluid,
    파이프가 삽입되는 삽입구가 구비되는 본체와,A main body provided with an insertion hole into which the pipe is inserted,
    링 형상으로 이루어짐과 더불어 중간 부분에 절개부가 구비되며, 상기 삽입구의 내주면과 파이프의 외주면 사이에 배치되는 조임 부재,In addition to the ring shape is provided with a cutout in the middle portion, the tightening member disposed between the inner peripheral surface of the insertion hole and the outer peripheral surface of the pipe,
    중심 부분에 파이프가 삽입되는 제1 관통공이 구비되고, 조임 부재와 캡 너트의 사이에 배치되는 가압 부재 및,A first through-hole provided with a pipe inserted in the center portion, the pressing member disposed between the tightening member and the cap nut,
    상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고,It is configured to include a cap nut is provided with a second through hole which is coupled to the insertion hole of the main body and the pipe is inserted into the central portion,
    상기 본체는 삽입구 내주면에 조임 부재의 제1 경사면에 대응하는 제1 경사부가 구비되고,The main body is provided with a first inclined portion corresponding to the first inclined surface of the tightening member on the inner peripheral surface of the insertion hole,
    상기 조임 부재는 외주면에 중앙부를 기준으로 양단부로 갈수록 내향 방향으로 경사지는 제1 및 제2 경사면이 구비되며,The tightening member has an outer circumferential surface is provided with a first and a second inclined surface inclined inward direction toward both ends relative to the center portion,
    상기 가압 부재는 선단부에 상기 제2 경사면에 대응하는 제2 경사부를 구비하는 것을 특징으로 하는 파이프 연결장치.And the pressing member has a second inclined portion corresponding to the second inclined surface at a tip end thereof.
  9. 제8항에 있어서,The method of claim 8,
    상기 조임 부재의 내주면에는 스토퍼가 형성되는 것을 특징으로 하는 파이프 연결장치.Pipe stopper, characterized in that the stopper is formed on the inner peripheral surface of the tightening member.
  10. 제8항에 있어서,The method of claim 8,
    상기 조임 부재의 내주면에는 스토퍼가 형성되는 것을 특징으로 하는 파이프 연결장치.Pipe stopper, characterized in that the stopper is formed on the inner peripheral surface of the tightening member.
  11. 제8항에 있어서,The method of claim 8,
    상기 가압 부재의 외주면에 제1 오링이 설치되는 것을 특징으로 하는 파이프 연결장치.Pipe connecting device, characterized in that the first O-ring is installed on the outer peripheral surface of the pressing member.
  12. 제8항에 있어서,The method of claim 8,
    상기 제2 관통공의 내주면에 제2 오링이 설치되는 것을 특징으로 하는 파이프 연결장치.Pipe connection device, characterized in that the second O-ring is installed on the inner peripheral surface of the second through hole.
  13. 제11항에 있어서,The method of claim 11,
    상기 제1 오링의 후단에 제1 단차부가 형성되고,A first stepped portion is formed at a rear end of the first O-ring,
    상기 캡 너트의 선단부에는 상기 제1 단차부를 통해서 제1 오링을 가압하기 위한 제1 가압 돌기가 추가로 구비되는 것을 특징으로 하는 파이프 연결장치.And a first pressing protrusion for pressing the first O-ring through the first stepped portion at the front end of the cap nut.
  14. 제12항 또는 제13항에 있어서,The method according to claim 12 or 13,
    상기 제2 오링의 전단에는 제2 단차부가 형성되고,A second step portion is formed at the front end of the second O-ring,
    상기 가압 부재의 후단부에는 상기 제2 단차부를 통해 제2 오링을 가압하기 위한 제2 가압 돌기가 추가로 구비되는 것을 특징으로 하는 파이프 연결장치.And a second pressing protrusion for pressing the second O-ring through the second stepped portion at the rear end of the pressing member.
  15. 유체를 유동하기 위한 파이프와 결합되거나, 파이프와 파이프를 결합하기 위한 파이프 연결장치에 있어서,In a pipe connection for coupling a pipe or a pipe for flowing a fluid,
    파이프가 삽입되는 삽입구가 구비되는 본체와,A main body provided with an insertion hole into which the pipe is inserted,
    중심 부분에 파이프가 삽입되는 제1 관통공이 구비되고 상기 삽입구의 내주면과 파이프의 외주면 사이에 배치되는 조임 부재 및,A fastening member having a first through hole into which a pipe is inserted in a central portion and disposed between an inner circumferential surface of the insertion hole and an outer circumferential surface of the pipe;
    상기 본체의 삽입구에 체결됨과 더불어 중심 부분에 파이프가 삽입되는 되는 제2 관통공이 구비되는 캡 너트를 포함하여 구성되고,It is configured to include a cap nut is provided with a second through hole which is coupled to the insertion hole of the main body and the pipe is inserted into the central portion,
    상기 본체는 삽입구 내측에 조임 부재의 진입을 차단하기 위한 단턱부가 구비되고,The main body is provided with a stepped portion for blocking the entry of the tightening member inside the insertion hole,
    상기 조임 부재는 선단부에 내향 방향으로 경사지는 경사면이 구비되고, 선단부 내주면에는 원주 방향으로 홈이 형성되는 것을 특징으로 하는 파이프 연결장치.The tightening member is provided with an inclined surface inclined in the inward direction in the tip portion, the pipe connecting device, characterized in that the groove is formed in the circumferential direction on the inner peripheral surface of the tip portion.
  16. 제15항에 있어서,The method of claim 15,
    상기 조임 부재의 외주면에 제1 오링이 설치되는 것을 특징으로 하는 파이프 연결장치.Pipe connection device, characterized in that the first O-ring is installed on the outer peripheral surface of the tightening member.
  17. 제15항에 있어서,The method of claim 15,
    상기 제2 관통공의 내주면에 제2 오링이 설치되는 것을 특징으로 하는 파이프 연결장치.Pipe connection device, characterized in that the second O-ring is installed on the inner peripheral surface of the second through hole.
  18. 제16항에 있어서,The method of claim 16,
    상기 제1 오링의 후단에 제1 단차부가 형성되고,A first stepped portion is formed at a rear end of the first O-ring,
    상기 캡 너트의 선단부에는 상기 제1 단차부를 통해서 제1 오링을 가압하기 위한 제1 가압 돌기가 추가로 구비되는 것을 특징으로 하는 파이프 연결장치.And a first pressing protrusion for pressing the first O-ring through the first stepped portion at the front end of the cap nut.
  19. 제17항 또는 제18항에 있어서,The method of claim 17 or 18,
    상기 제2 오링의 전단에는 제2 단차부가 형성되고,A second step portion is formed at the front end of the second O-ring,
    상기 조임 부재의 후단부에는 상기 제2 단차부를 통해 제2 오링을 가압하기 위한 제2 가압 돌기가 추가로 구비되는 것을 특징으로 하는 파이프 연결장치.And a second pressing protrusion for pressing the second O-ring through the second stepped portion at the rear end of the tightening member.
PCT/KR2015/009756 2014-11-13 2015-09-16 Pipe connection device WO2017003023A1 (en)

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KR20140158289 2014-11-13
KR10-2015-0094372 2015-07-01
KR1020150094372A KR101756526B1 (en) 2014-11-13 2015-07-01 Pipe coupling apparatus

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