KR200181270Y1 - A reducer for flare pipe - Google Patents

Abstract

The present invention relates to a corrugated pipe fitting, which facilitates the fastening of the metal corrugated pipe inserted into the pipe socket of the external supply pipe and allows the sealed packing inserted into the airtight means to be accurately inserted between the metal corrugated pipe and the pipe socket inside the tightening ring. The cap screw portion 13 is inclined to the insertion guide end 14 so that the sealing portion 20 can be guided and hermetically sealed by a guided insert to seal the joint portion of the metal corrugated pipe with a simple fastening action. A pipe socket 10 in which a packing pressing surface 15 is curved inwardly; The curved inclined sealing packing 20 is inserted into the packing pressing surface 15 of the pipe socket so that the closing sealing surface 22 can be press-sealed by the fixing ring 30 while the inserted inclined surface 21 is inserted into the packing pressing surface 15. )and; The fixing ring 30 bent to be larger than the outer diameter width of the closing sealing surface 22 of the sealing packing so that the sealing packing 20 together with the tightening ring 40 can be guided into the packing pressing surface 15 of the pipe socket. ; The snap projection 42 is retracted toward the center inside the bent release prevention end 41 so that the sealing packing 20 can be pressed into the packing pressing surface 15 together with the fixing ring 30. A tightening ring 40 protruding from the groove; As the tightening ring pressing surface 54 is bent inwardly to the inside of the inter-pleat insertion surface 53 so as to press-close the sealing packing 20 with the fixing ring 30 to the packing pressing surface 15 of the pipe socket. The finishing step 51 is characterized by consisting of a cap nut 50 protruding.

Description

Crimp pipe fittings {A reducer for flare pipe}

The present invention relates to a corrugated pipe fitting for hermetically connecting a metal wrinkle pipe used for hot water pipes or gas pipes to an external supply pipe. More specifically, it is easy to fasten a metal wrinkle pipe inserted into a pipe socket on an external supply pipe and is a gastight means. The present invention relates to a corrugated pipe fitting that can structurally and securely seal the joint portion of a metal corrugated pipe by a simple fastening operation by allowing a sealed seal to be accurately inserted between the metal corrugated pipe and the pipe socket inside the tightening ring.

In general, with the radical development of science and technology and economic growth, more convenient functions and conveniences are required throughout the consciousness in the living environment.In particular, in the living environment, living water or fuel in living spaces such as high-rise buildings or houses and apartments The connection relationship between the pipe and the direction to extend the length of the pipe that can safely supply gas from a remote source to the corresponding place of use has emerged as an important infrastructure problem.

In other words, in connecting and diverting the supply pipe from the outside and the branch pipe to the place, leakage and leakage of the contents passing through the pipes are ensured by keeping the joints between these pipes from the internal pressure or the external shock. There is a need for pipe fittings for supplying fluids and gases that can be prevented.

On the other hand, Figure 4 and Figure 5 shows a separate state external structure and the coupled state internal structure of the corrugated pipe connector according to the prior art, it is used for hot water piping and gas piping as a stainless steel material with good bendability and excellent corrosion resistance Insert the end of the metal corrugated pipe into the pipe socket 140 of the corrugated pipe fitting, insert the sealing means in the middle and press-fit the cap nut 110 by fastening and pressing to secure the metal corrugated pipe 150 is tightly held in the corrugated pipe fitting It was made.

That is, as shown in FIGS. 4 and 5, the corrugated pipe fitting so far that the metal corrugated pipe 150 is hermetically connected to an external supply pipe (not shown) is a pipe socket into which the metal corrugated pipe 150 is inserted and fixed ( 140 and the capping nut 110 which is a fastening and fixing means together with the sealing packing 130 and the snap washer 120 for sealing the metal corrugated pipe 150 inserted into the pipe socket 140, the pipe socket ( 140 is a pipe screw portion 143 is formed protruding in one direction with an external supply pipe is coupled to the center of the tool fastening portion 142 to which the tightening tool, such as a pipe wrench is fastened, and the metal wrinkle pipe 150 is inserted in the opposite direction The cap screw portion 141 into which the sealing means 130 and the snap washer 120 are fitted is formed to protrude.

The hermetic packing 130, which is fitted into the corrugated pipe insertion surface 144 formed through the cap screw portion 141 of the pipe socket 140, is hermetically sealed by the cap nut 110 while being fastened and pressed by the cap nut 110. In order to seal the gap with the corrugated pipe 150, a stepped compression groove 132 is formed between the insertion end 133 and the compression end 131 with a soft silicon material, and a snap washer made of plastic material. 120 is cut in the middle so that the gap between the cap nut 110 and the metal corrugated pipe 150 can be kept airtight while being changed in shape according to the clamping pressure of the cap nut 110, the opposite direction to the inclined compression inclined surface 121 As the snap projection 122 of the metric thread structure is retracted toward the center is formed, the end step 111 is formed outside the cap nut 110 so that the snap washer 120 is separated from the packing of the inner peripheral surface Cap screw portion 14 of the pipe socket 140 on the pressing surface (112) It is screwed to fasten to 1).

The conventional corrugated pipe fitting is inserted into the cap screw portion 141 of the pipe socket 140 while the snap washer 120 and the sealing packing 130 are fitted to the joint end of the metal wrinkle pipe 150. 110 by fastening with a separate tightening tool, the packing crimping surface 112 of the cap nut is screwed into the cap screw portion 141 of the pipe socket, the metal corrugated pipe 150 and the corrugated pipe insertion surface of the pipe socket ( 144) and the joint gap with the packing pressing surface 112 of the cap nut can be sealed.

However, the sealing packing 130 and the snap washer 120 that is inserted and pressed together with the cap nut 110 to keep the joint end of the metal wrinkle pipe 150 inserted into the pipe socket 140 of the corrugated pipe fittings is FIG. 5. As shown in the cross-sectional structure of the coupling state of the closed state, the sealed packing 130 is precisely pressed toward the joint end of the joint crimping surface 112 and the cap nut 110 of the metal socket 150 and the pipe socket. In this case, the packing was unnecessarily filled toward the space of the packing pressing surface 112 of the cap nut above the snap washer 120.

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.

Therefore, the present invention was devised to solve the structural shortcomings of using the sealing means at the joint part for a long time while improving the inconvenience of the fastening work when the metal corrugated pipe is hermetically connected to the corrugated pipe fitting. It is easy to fasten the metal corrugated pipe inserted into the pipe socket, and the sealed packing inserted into the airtight means can be accurately inserted between the metal corrugated pipe and the pipe socket inside the tightening ring, so that the joint of the metal corrugated pipe can be structurally simple Its purpose is to provide corrugated pipe fittings that can be reliably kept tight.

1 is a perspective view of a crimped pipe connector separated state of the present invention.

Figure 2 is a cross-sectional view of the present invention crimped connector.

Figure 3 is a sectional view of the crimped pipe joints of the present invention.

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

Figure 5 is a cross-sectional view of the crimped connector joint state according to the prior art.

Explanation of symbols on the main parts of the drawings

10: pipe socket 11: pipe thread

12: Tool fastening part 13: Cap screw part

14: insert guide end 15: packing crimping surface

20: sealed packing 21: insertion slope

22: closed sealing surface 30: retaining ring

31: packing fixing end 40: tightening ring

41: departure prevention step 42: snap projection

50: cap nut 51: finishing step

52: tightening wing 53: corrugated pipe insertion surface

54: finishing step 60: metal corrugated pipe

As a technical means for achieving the above object, the corrugated pipe fitting of the present invention has excellent bendability and corrosion resistance, so that the corrugated pipe fitting for sealingly connecting a metal corrugated pipe used for hot water pipe or gas pipe with an external supply pipe, The cap screw part which is fastened and fixed to the external supply pipe is fastened and inserted into the outer supply pipe, and the cap screw part which is fastened and closed by the cap nut is formed to protrude. A pipe or socket made of brass or plastic material, the surface of which is inclined toward the insertion guide end and the packing pressing surface is curved inwardly; A sealing packing of a curved inclined silicon material in a ring shape such that the closed sealing surface is inserted into the packing crimping surface of the pipe socket while the closed sealing surface is pressurized and pressed by a fixing ring; A fixed ring of plastic material that is bent to be larger than the outer diameter of the closed sealing surface of the sealing packing so that the sealing packing can be guided into the packing pressing surface of the pipe socket together with the tightening ring of the metal material; In accordance with the clamping pressure of the cap nut to be tightened, the snap protrusion, which is confined toward the center inside the curved bent release prevention end, is inserted into the packing pressing surface of the pipe socket and fixed to the sealing packing together with the fixing ring. A tightening ring of stainless material protruding from the structure; While tightening and tightening the cap screw of the pipe socket, the tightening ring is pressurized by pressing the tightening ring, and the tightening ring pressing surface is inclined bent toward the rear of the inter-pleated insert surface so that the sealing seal can be pressed and sealed together with the packing pressing surface of the pipe socket. Finishing step is characterized by consisting of a cap nut of brass or plastic material protruding.

In addition, the cap nut is characterized in that the captive wing is formed to protrude so as to grip by hand on the outer side of the corrugated tube insertion surface.

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 corrugated pipe connector according to the present invention, Figure 2 is a cross-sectional view showing the separated state of the internal structure of the corrugated pipe connector according to the present invention, as shown in the packing packing surface 15 The rigid fixing ring 30 and the metal fastening ring 40 together with the soft hermetic packing 20 into the cap screw portion 13 of the pipe slant 10 formed through the curved inclined state are positioned therebetween. By inserting the metal corrugated pipe 60 and tightening the cap nut 50 protruding from the tightening blade 52 on the outside, the clamping pressure of the cap nut 50 is transmitted through the tightening ring 40 while the sealed packing 20 As shown in the cross-sectional structure of the bonded state of FIG. 3, the insertion gap is guided by the fastening ring 40 and the fixing ring 30, and as an assembly gap between the outer side of the metal corrugated pipe 60 and the packing crimping surface 15 of the pipe socket. It can be pressed tightly while being inserted correctly.

As described above, the corrugated pipe connector for sealingly connecting the metal corrugated pipe 60 used for the hot water pipe or the gas pipe to an external supply pipe (not shown) has excellent bendability and corrosion resistance. Consists of the assembly of the pipe socket 10 is inserted and fixed, the pipe socket 10 is a screw thread 11 is fastened to the external supply pipe around the tool fastening portion 12 is fastened to a fastening mechanism such as a pipe wrench ) And the metal corrugated pipe 50 is inserted and fixed to the cap screw portion 13, which is fastened and closed by the cap nut 50, is protruded, and the cap screw portion 13 has a sealed packing 20 having a fixing ring 30. And the sealing packing 20, the outer end of which is closed, is inclined toward the packing pressing surface 15 so that the sealing ring can be precisely compressed while being guided according to the fastening ring 40 and the fastening pressure. Could Insert induction stage 14 to induce bending guide is inclined at an angle.

And the sealing packing 20 is formed of a soft silicone material as a direct sealing means of the metal corrugated pipe 60, the insertion inclined surface 21 is oblique so that the structurally and accurately guided insertion into the packing pressing surface 15 of the pipe socket. While the surface is inclined inclined, the opposite closing surface 22 is curved at a steeper angle of inclination than the packing pressing surface 15 so that the surface can be stably moved by the rigid fixing ring 30.

In addition, the fixing ring 30 for inducing movement toward the packing pressing surface 15 of the pipe socket 10 while firmly surrounding the closed sealing surface 22 of the sealed packing 20 is harder than the sealed packing 20. The closed sealing surface of the sealed packing 20 so that the sealed packing 20 together with the tightening ring 40 may be guided and guided without leaving the packing pressing surface 15 of the pipe socket. 22) It is formed in a ring shape having the same size as the outer diameter of the separation prevention end 41 of the tightening ring 40 of the metal material while being slightly larger than the outer diameter.

In addition, the sealing packing 20 is a stainless steel tightening ring 40 to be inserted into the packing pressing surface 15 of the tube socket 10 as well as the fixed ring 30 by pressing the cap nut ( Packing fixing end 31 of the fixing ring 30 so that the sealing packing 20 together with the fixing ring 30 in accordance with the fastening pressure of the 50 can be inserted and filled into the packing pressing surface 15 of the pipe socket. The separation prevention end 41 having the same outer diameter in the form of a curved surface is bent, and the snap protrusion is retracted by the clamping pressure of the cap nut 50 toward the center inside the separation prevention end 41. 42 is protruded into a metric screw structure and has a structure that is pressed and fixed in a disc shape to the tightening ring pressing surface 54 of the cap nut (50).

In addition, the cap nut 50 made of brass or plastic material as the fastening fixing means is fastened to the cap screw portion 13 of the pipe socket 10 and pressurizes the tightening ring 40 to seal tightly together with the fixing ring 30. In order to press-close the packing 20 into the packing pressing surface 15 of the pipe socket, the tightening ring pressing surface 54 is bent inwardly to the rear end of the threaded inner corrugated insertion surface 53. ) Is protruding.

The corrugated pipe fitting configured as described above is soft in the cap screw portion 13 of the pipe socket 10 through which the packing crimping surface 15 is formed to be curved inclined, as shown in the cross-sectional structure of the crimped pipe connector coupled state of the present invention shown in FIG. In the state where the rigid fixing ring 30 and the metal fastening ring 40 together with the sealed packing 20 are fixed, insert the metal corrugated pipe 60 therebetween, and the tightening blade 52 protrudes outward. When the cap nut 50 is gripped and hand tightened first, and then finally tightened with a separate tightening tool, the cap ring 50 has an intermediate fixing ring 30 together with the metal ring 40 by the fastening pressure of the cap nut 50. ) Guides the sealed packing 20, which is a soft sealing means, to the insertion guide end 14 of the pipe socket 10 to move under pressure.

Therefore, when the corrugated pipe insertion surface 53 of the cap nut 50 is fastened to a position where both ends of the cap screw portion 13 of the pipe socket 10 are in contact with each other, the fastening ring 40 together with the fastening ring 40 made of metal ( The sealing packing 20, which is guided and moved under pressure, is guided by 30 and precisely compressed and inserted into an assembly gap between the packing pressing surface 15 of the pipe socket 10 and the outer surface of the metal corrugated pipe 60. As a metal corrugated pipe 60 can be securely sealed in the form of crimping crimped to the gap of the fitting of the pleated pipe fitting.

According to the crimped pipe fitting according to the present invention described above, the sealing packing is inserted and tightened in order to maintain the assembly gap of the joint portion while making it easy to fasten the metal wrinkle pipe inserted into the pipe socket of the external supply pipe side. It can be pressed and fixed structurally precisely between the metal crimp pipe, which is the assembly gap, and the packing crimping surface of the pipe socket by the retaining ring, so that it can be pressed and fixed. The effect that can reliably provide a maintenance effect is anticipated.

Claims (2)

In the corrugated pipe fitting for tightly connecting the metal corrugated pipe used for hot water pipe or gas pipe with the external supply pipe due to its excellent bendability and corrosion resistance, the tube thread part 11 which is fastened and fixed to the external supply pipe around the tool fastening part 12 ) And the metal corrugated pipe 50 is inserted and fixed, and the cap screw portion 13 which is fastened and closed by the cap nut 50 is protruded, and the cap screw portion 13 is guided by the sealing packing 20 to be hermetically crimped. A pipe or socket 10 made of brass or plastic material, the end of which is inclined toward the insertion guide end 14 so that the packing pressing surface 15 is curved inwardly; The inclined curved surface is inserted into the packing pressing surface 15 of the pipe socket while the inclined inserting surface 21 is inserted into the ring shape so that the closing sealing surface 22 is pressed and guided by the fixing ring 30. Sealing packing 20 of the silicon material; Plastic bent to be larger than the outer diameter width of the closed sealing surface 22 of the sealed packing so that the sealing packing 20 can be guided into the packing pressing surface 15 of the pipe socket together with the metal ring 40. A fixing ring 30 of material; According to the clamping pressure of the cap nut 50 to be tightened, the sealing preventing bent end so that the sealing packing 20 together with the fixing ring 30 is inserted into the packing pressing surface 15 of the pipe socket to be pressed and fixed. (41) a fastening ring 40 made of stainless steel, in which a snap protrusion 42 which is retracted toward the center inside is formed to protrude into a metric screw structure; While fastening and fastening to the cap screw portion 13 of the pipe socket, press the tightening ring 40 to press-close the sealing packing 20 together with the fixing ring 30 to the packing pressing surface 15 of the pipe socket. Corrugated pipe fittings, characterized in that made of brass or plastic cap nut 50 protruding the finishing step 51 while the tightening ring pressing surface 54 is inclined bent backward to the inter-insertion surface 53 of the. The crimp fitting according to claim 1, wherein the cap nut (50) has a captive blade (52) protruding from the crimp tube insertion surface (53) so as to be gripped by hand.