KR200185822Y1 - A piping reducer - Google Patents

Abstract

The present invention relates to a fitting for pleating pipes, the pleated branch pipe (50) together with a sealing means by simply inserting into the cap coupling portion 13 of the pipe socket (10) by compression fastening and structurally maintaining the airtight of the coupling portion The pipe socket 10 is screwed to the outside of the cap coupling portion 13 so as to be bolted to the socket coupling portion 41 of the cap nut 40 so as to increase the sealing packing 20 inside thereof. The packing pressing surface 15 is formed to be curved to guide the insertion), and the sealing packing 20 inserted and pressed into the packing pressing surface 15 of the pipe socket is pressed into the compression reinforcing ring 25 intermediately cut inside. While the outer surface is formed with an inclination surface 21 of a certain angle to be guided into the packing pressing surface (15) of the pipe socket on the outside, and also to advance the closed sealing surface 22 of the sealing packing (20) by pressing forward So that the separation shield ring 30 has a predetermined angle of packing pressure inside the compression sealing surface 31. While the surface 32 is curved, while the branch pipe 50 is inserted into the seal packing 20 and the release shield ring 30, the seal pack 20 and the release shield ring 30 are pressed forward. The cap nut 40 has a predetermined depth of close contact guide groove 42 formed next to the packing crimping portion 43 protruding toward the inner center so that the nut can be coupled to the cap coupling portion 13 of the pipe socket. It characterized in that the fastening blades 44 protruding from both sides of the socket coupling portion 41 formed in the protrusion.

Description

Joint for crimping pipe {A piping reducer}

The present invention relates to a pleated pipe fitting for hermetically connecting a copper alloy steel and stainless steel pleated branch pipe used for heating and water supply pipe or gas pipe with an external supply pipe, and more specifically, a branch pipe together with a sealing means. The socket coupling part of the cap nut that secures the pressure of the cap nut can be easily inserted into the cap coupling part of the pipe socket into which the pleated powder can be inserted and structurally reliably crimped and closed. The present invention relates to a pleated pipe fitting that can facilitate the overall tightening operation of a cap nut by being able to be tightened and finished with a tightening tool.

In general, in connecting and redirecting the supply pipe from the outside and the corrugated branch pipe to the place through the corrugated pipe fitting, the pipe is secured by keeping the joints between these pipes tightly from internal pressure or external shock. There is a need for a pipe fitting that is used as a fluid and gas supply pipe that can prevent leakage and leakage of contents passing therethrough.

That is, such a crimp pipe fitting is composed of a pipe socket into which the pleated branch pipe is inserted and crimped together with a cap nut for crimping and fixing the branch pipe together with a pipe socket about the connecting end of the branch pipe inserted into the longitudinal direction. Confidentiality was required to ensure that the joint between the cap nuts could withstand the harsh environment.

On the other hand, the one-piece rotary crimping fittings structure improved to be able to more securely hold the coupling portion of the corrugated pipe fittings in a one-touch rotation, as well as to facilitate the coupling operation as shown in the reference drawings of Figures 4 and 5 4 and 5 illustrate the separated state and the external state of the corrugated pipe fitting according to the prior art, which has good bendability and excellent corrosion resistance as a stainless steel material. Insert the connection end of the metal corrugated pipe 150 used for hot water pipes and gas pipes into the pipe socket 140 of the pleated pipe fitting, insert the sealing means 120, 130 in the middle and tighten the cap nut 110 Pressing and crimping to fix the metal wrinkle pipe 150 to be fixed while being kept tight in the corrugated pipe fitting. That is, the metal wrinkle pipe 150 to the external supply pipe (Fig. The conventional corrugated pipe fittings to be hermetically connected to each other (not shown) are hermetically sealed packings 130 for hermetically sealing the tube socket 140 into which the metal wrinkle tube 150 is inserted and the metal wrinkle tube 150 inserted into the tube socket 140. And a cap washer 110, which is a fastening and fixing means, together with the snap washer 120, the pipe socket 140 is in one direction centering on a tool fastening part 142 to which a fastening tool such as a pipe wrench is fastened. The supply pipe coupling portion 143 which is coupled to the external supply pipe is formed to protrude, and in the opposite direction, while the metal wrinkle pipe 150 is inserted into the cap coupling portion that the sealing seal 130 and the snap washer 120, which is a sealing means is fitted (141) is formed protruding. The sealing packing 130 which is fitted into the corrugated pipe insertion surface 144 formed through the cap coupling portion 141 of the pipe socket 140 is fastened and compressed by the cap nut 110 Push the gap between the corrugated pipe insertion surface 144 and the metal corrugated pipe 150 A stepped compression groove 132 is formed between the insertion end 133 and the compression end 131 with a soft silicone material, and the snap washer 120 of the plastic material is formed of the cap nut 110. The metric screw structure is cut in the middle and is retracted toward the center in the direction opposite to the curved inclined inclined surface 121 so as to maintain the airtightness between the cap nut 110 and the metal corrugated pipe 150 while being changed in shape according to the fastening pressure. The snap protrusion 122 of the protrusion is formed, the end step 111 is formed to the outside so that the cap washer 110 is not detached from the snap washer 120, the inner side of the packing pressing surface 112 of the pipe socket ( The capscrew portion 141 of the cap screw portion 141 is screwed so as to be fastened to the cap screw portion 141. The conventional corrugated pipe fitting is a pipe in a state in which a snap washer 120 and a sealed packing 130 are fitted to the joint end of the metal pleated pipe 150. Insert into the cap screw part 141 of the socket 140 When the cap nut 110 is fastened and tightened by a separate tightening tool, the packing crimping surface 112 of the cap nut is screwed with the cap screw part 141 of the pipe socket, and the metal corrugated pipe 150 and the pipe are tightened. The joint gap between the corrugated pipe insertion surface 144 of the socket and the packing crimp surface 112 of the cap nut can be sealed. However, the joint end of the metal corrugated pipe 150 inserted into the pipe socket 140 of the corrugated pipe fitting is sealed. As the sealing packing 130 and the snap washer 120 are inserted and pressed together with the cap nut 110 to maintain the airtightness as shown in the cross-sectional structure of FIG. 5, the sealing packing 130 is the metal wrinkle pipe 150. ) Is not precisely pressed toward the joint end of the joint end of the joint and the pipe socket 112 and the cap nut 110 of the pipe socket. Filled. Therefore, the airtight packing 130 which keeps the gap between the metal end of the corrugated pipe 150 and the corrugated pipe fitting is not structurally stable and cannot be squeezed and fixed to the metal corrugated pipe 150 so that the airtight state can easily be poor. In addition, the sealing packing 130 and the snap washer 120 is fastened to the pipe socket 140 in the state in which the pipe socket 140 is fastened to the joint end of the metal corrugated pipe 150, and as a cap nut 110. There was also the inconvenience of clamping and fixing.

The present invention has been devised to solve the structural shortcomings of the conventional pleated pipe fittings, the socket coupling portion of the cap nut for crimping and fixing the branch pipe together with the sealing means of the pipe socket is fixed The cap nut can be easily inserted into the cap coupling part and can be tightly sealed tightly, while the cap nut can be temporarily fastened by hand first and then tightened with a tightening tool. It is an object of the present invention to provide a fitting for crimping pipes to be made.

1 is an exploded perspective view of a fitting for a crimp pipe of the present invention.

Figure 2 is a cross-sectional view of the present invention for crimped pipe fittings separated state.

Figure 3 is a cross-sectional view fitting state for the crimp pipe of the present invention.

Figure 4 is a perspective view of a crimped pipe fitting separated state according to the prior art.

Figure 5 is a cross-sectional view of the crimp fitting fitting state according to the prior art.

Explanation of symbols on the main parts of the drawings

10: pipe socket 11: supply pipe coupling portion

12: tool fastening part 13: cap coupling part

14: insert guide end 15: packing crimping surface

20: sealed packing 21: insertion slope

22: closed sealing surface 23: ring coupling groove

25: crimp reinforcement ring 30: release shield ring

31: Pressed sealing surface 32: Packing pressing surface

40: cap nut 41: socket coupling portion

42: adhesion guide groove 43: packing crimp

44: tightening wing 50: fold branch

As a technical means to achieve the above object, the present invention is excellent in bendability and corrosion resistance to connect the corrugated branch pipe made of copper alloy and stainless steel, which is used for heating and water supply pipe or gas pipe, with the supply pipe from the outside. In the pipe fitting for the pipe fitting, the socket coupling portion of the cap nut is screwed into the outer side of the cap coupling portion so that the nut coupling can be fastened inward, and the packing crimping surface is inclined so that the sealing seal can be guided inward. The sealed packing inserted and pressed into the packing pressing surface of the pipe socket has a curved bent finish so that it can be inserted into the packing pressing surface of the pipe socket while the press-fit reinforcing ring of the metal material cut in the middle is pressed. An inclined surface of a certain angle is formed on the opposite side of the sealing surface, and presses the end sealing surface of the sealing packing forward. The release shielding ring is formed with a curved packing surface on the inside of the compression sealing surface, and forward compression of the sealing packing and the release shielding ring while the branch pipe is inserted into the sealing packing and the release shielding ring. The cap nut is screwed to the outside of the socket coupling portion protruded forward so that the cap nut is bolted to the cap coupling portion of the socket, characterized in that a close contact guide groove is formed in the bent portion of the tool engagement portion.

Hereinafter, described in detail preferred embodiments of the present invention by the accompanying drawings as follows.

Figure 1 shows a separate state external structure of the pleated pipe fittings according to the present invention, Figure 2 is a cross-sectional view showing the internal structure of the pleated pipe fittings according to the present invention, Figure 3 It is a cross-sectional view showing the internal structure of the coupling state of the pleating pipe fittings.

As shown in the figure, the fitting for the pleated pipe of the present invention is a pipe socket (10) and the pleated pipe (50) in which the pleated branch pipe (50) is fixed, the sealing means (20, 30) pipe socket ( Including the cap nut 40 to be fixed to the cap coupling portion 13 of the 10) to improve the structure of the sealing means and to simplify the fastening structure between the pipe socket 10 and the cap nut 40, the pleated branch pipe 50 The cap coupling portion 13 of the pipe socket is bolted to the socket coupling portion 41 of the cap nut screwed inside so that the connecting end of the pipe socket can be structurally and securely sealed at the same time. 41 is configured to be nut-coupled to the cap coupling portion 13 of the pipe socket screwed on the outside, the socket coupling portion 41 of the cap nut that is nut-coupled out of the cap coupling portion 13 of the pipe socket ), The sealing packing 20 and the release shield ring 30, which are sealing means, are more securely contacted by their ends. As it is pressed, it can be crimped into the coupling gap.

The pipe socket 10 is the same as the supply pipe coupling portion 11 is screwed on the outside so that the fastening mechanism such as a pipe wrench is fastened to the external supply pipe (not shown in the drawing) around the fastening portion 12 is fastened The corrugated branch pipe 50 made of alloy steel or stainless steel is inserted and fixed, and the socket coupling portion 51 of the cap nut 50 is formed as a cap coupling portion 13 screwed outward so that the nut can be fastened. The cap coupling portion 13 has an inner inner side to the packing pressing surface 15 so that the sealing packing 20 can be accurately sealed and pressed while being guided in accordance with the clamping pressure of the cap nut 40 together with the release shield ring 30. The guide induction end 14 is inclined bent at a predetermined angle so that the inclined surface is bent, and the outer end thereof is guided so that the sealed packing 20 can be accurately inserted.

In addition, the sealing packing 20 formed of butyl rubber material having excellent heat resistance and acid resistance to be crimped and fixed to the connecting end of the pleated powder pipe 50 by a sealing means is structurally formed in the packing pressing surface 15 of the pipe socket. As the inclined surface 21 is obliquely curved inclined so that the guide insert can be accurately inserted, the opposite closed surface 22 can be stably folded by a release shield ring 30 formed of a Teflon material having excellent heat resistance and electrical insulation. The surface is formed at a steep inclination angle than the packing pressing surface 15 so as to be curved.

In addition, the hermetic packing 20 is formed in the ring coupling groove 23 in the inner side of the inclined surface 21, the groove is formed in the ring coupling groove 23 while crimping fixedly and uniformly fixed to the outside of the connection end of the pleated branch pipe 50 wrinkles pipe The pressing reinforcing ring 25 made of a metal material to reinforce the shape so as to increase the adhesive strength with the 50 is pressed, the pressing reinforcing ring 25 at this time is cut inclined at a predetermined angle in the middle and sealed packing (20) The fold branch pipe 50 to be inserted into the back can be prevented from falling off after insertion.

In addition, the release shield ring 30 for inducing movement toward the packing pressing surface 15 of the pipe socket 10 while stably surrounding the closed sealing surface 22 of the hermetic packing 20 is soft as a hard Teflon material. It is formed in a ring shape slightly larger than the outer diameter width of the closing sealing surface 22 of the sealing packing 20 so that the sealed packing 20 of the pipe packing can be guided and fixed without being guided out of the packing pressing surface 15 of the pipe socket. .

In addition, the cap nut 40 made of brass or plastic material as a crimping fastening means has the sealing packing 20 and the separation shielding in the state in which the branch pipe 50 is inserted into the sealing packing 20 and the release shielding ring 30. The socket coupling portion 41 is smaller than the outer diameter of the cap coupling portion 13 of the pipe socket 10 so that the ring 30 may be forward-pressed and simultaneously nut-coupled to the cap coupling portion 13 of the pipe socket 10. While the screw is formed on the inner side, the packing crimping portion 43 protrudes toward the inner center thereof, and the end of the cap coupling portion 13 of the pipe socket 10 which is bolted to the side of the packing crimping portion 43 is socket-coupled. A close induction groove 42 of a predetermined depth is formed so that the fastening can be fixed while being completely inwardly into the inner portion 41.

In addition, the cap nut 40 has a tightening blade 44 protruding from both sides of the socket coupling portion 41 so that the operator can easily rotate and tighten by hand without a tightening tool during the pre-tightening operation.

The corrugated pipe fitting configured as described above has a rigid release shielding ring 40 with a soft sealing packing 20 into the cap coupling portion 13 of the pipe socket 10 through which the packing crimping surface 15 is curved inclined. In the state of fastening and inserting the metal pleated branch pipe 50 therebetween, and then the socket coupling portion 41 of the cap nut screwed on the inside out of the cap coupling portion 13 of the pipe socket screwed on the outside When tightened and tightened, the hard release shield ring 30 and the sealing seal 20, which is a soft sealing means, are inserted into the insertion guide end 14 of the pipe socket 10 by the tightening pressure of the cap nut 40. It is pressurized while guided.

That is, the sealing packing 20 in which the crimp reinforcing ring of the metal material is pressed and the release shield ring 30 for guiding the sealing packing 20 are inserted into the cap coupling part 13 of the pipe socket 10 and these After inserting the connecting end of the pleated powder pipe 50 therebetween, the socket coupling portion 41 of the cap nut 40 is preferentially connected to the pipe socket 10 using the captive blade 44 of the cap nut 40. When pre-tightening to the cap coupling portion 13 and finally tightened completely with a tightening tool, as shown in FIG. 3, the pressing reinforcing ring 25 of the hermetic packing 20 is connected to the pleated branch pipe 50. While being fixed to the end, it can be cleanly pressed and sealed in the coupling gap between the cap coupling part 13 of the pipe socket 10 and the connecting end of the pleated branch pipe 50, and at the same time, it is sealed by the release shield ring 30. (20) is provided between the connecting end of the socket coupling portion 41 of the cap nut 40 and the pleated branch pipe 50 without leaving out of the unnecessary gap. It is possible to reliably and confidentially masonry.

On the other hand, as shown in the basic embodiment of the pipe socket 10 and the cap nut 40, the same as the assembly structure is applied, while the outer structure of the sealed packing 20 which is a sealing means of the actual pleated branch pipe 50 is the same One, the separation to prevent the deviation from the compression operation of the sealing packing 20 together with the compression reinforcing ring 25 that is squeezed inside the sealing packing 20 to induce even compression of the sealing packing during the compression fixing. The shielding ring 30 may be omitted and applied as a simpler airtight structure.

That is, the sealing packing 20 is pushed forward by the end of the socket coupling portion 41 of the cap nut 40 which is bolted into the cap coupling portion 13 of the pipe socket 10 and with the pleated branch pipe 50. It can be compressed and fixed evenly in the coupling gap.

In addition, the configuration of the above-described embodiment as a preferred embodiment for facilitating the understanding of the present invention, the present design without the deviation from the principle of the present invention, the cap engaging portion of the pipe socket as a connecting means bolt function and at the same time the cap The socket coupling part of the nut can be modified in various forms to keep the connection end of the pleated branch pipe as a nut function, and all possible embodiments and modifications of the embodiments can be made without departing from the principles of the present invention. It should be understood that it belongs to the scope of rights of the

According to the fitting for the crimp pipe according to the present invention described above, the tightening action of the cap nut for pressing and sealing the pleated dust pipe into the pipe socket together with the sealing means, first to simply pre-tighten by hand, and finally to finish the tightening tool. This makes it possible to facilitate the overall tightening workability of the cap nut. In particular, the socket coupling portion of the cap nut for crimping and crimping the pleated branch pipe together with the sealing means is nut structured against the cap coupling portion of the pipe socket. The cap coupling part of the cap nut is bolted to the socket coupling part of the cap nut to simplify the overall configuration together with the sealing means, while the sealing means structurally equalizes the coupling gap between the branch pipe and the pipe socket by direct clamping pressure of the socket coupling part of the cap nut. It is expected to be able to maintain the confidentiality by pressing firmly.

Claims (1)

The socket of the cap nut 40 in the corrugated pipe fitting for sealingly connecting the copper alloy and stainless steel branch pipes used for heating and water supply pipes or gas pipes with the supply pipes from the outside due to its excellent bendability and corrosion resistance. The pipe socket 10 is screwed to the outside of the cap coupling portion 13 to be bolted to the coupling portion 41, and the packing pressing surface 15 so that the sealing packing 20 can be inserted into the inside thereof. C) is curved, and the sealing packing 20 inserted and pressed into the packing pressing surface 15 of the pipe socket is press-pressed reinforcing ring 25 made of metal cut in the middle of the pipe socket on the outside of the pipe socket. An inserting inclined surface 21 of a predetermined angle is curved to guide the insertion into the packing pressing surface 15, and the release shielding ring 30 to press forward the closing sealing surface 22 of the sealing packing 20. ) Is inside the compression-sealing surface 31 While the packing pressing surface 32 of a right angle is curved, the sealing packing 20 and the separation shielding ring (20) are inserted in the state in which the branch pipe 50 is inserted into the sealing packing 20 and the release shielding ring 30. The cap nut 40 has a predetermined depth of close contact guide groove 42 next to the packing crimping portion 43 protruding toward the inner center thereof so that the nut 30 can be coupled to the cap coupling portion 13 of the pipe socket while pressing forward 30. At the same time the groove is formed at the same time the inner side of the threaded socket coupling portion 41, the tightening blade 44 is characterized in that the protrusions protruding to both sides.