KR200187815Y1 - A piping reducer - Google Patents

Abstract

The present invention relates to a pipe fitting, a pipe socket (10) in which a branch pipe (50) is inserted and fixed into a socket coupling portion (41) of a cap nut (40) for pressing and fixing a branch pipe (50) together with a sealing means. The socket coupling portion 41 of the cap nut 40 is intended to simplify the assembly structure of the component parts and to structurally increase the airtightness of the coupling portion by inserting and tightening the cap coupling portion 13 into the cap coupling portion 13. The pipe socket 10 is screwed on the outside of the cap coupling portion 13 so that the nut can be fastened into the nut, and the packing pressing surface 15 is inclined so that the sealing packing 20 can be inserted into the inside thereof. It is formed, the sealing packing 20 is inserted and pressed into the packing pressing surface (15) of the pipe socket is press-pressed reinforcing ring (25) of the metal material cut in the middle of the inner side of the packing pressing surface of the pipe socket (15) Insertion inclined surface 21 of a certain angle to guide the insertion into Is formed, the release shield ring 30 is formed in the compression sealing surface (31) inside the compression sealing surface 31 so that the compression sealing advances the closing sealing surface 22 of the sealed packing, and also the sealed packing (20) In the state in which the branch pipe 50 is inserted into the release shielding ring 30, the sealing packing 20 and the release shielding ring 30 are pressed forward and bolted to the cap coupling portion 13 of the pipe socket. Cap nut 40 is characterized in that the close induction groove 42 is formed in the bent portion of the tool fastening portion 43 side while being screwed to the outside of the socket coupling portion 31 protruded forward.

Description

Plumbing fittings {A piping reducer}

The present invention relates to a pipe fitting for hermetically connecting copper alloy steel and stainless steel branch pipes used for heating and water supply pipes or gas pipes with supply pipes from the outside, and more specifically, press-fitting of branch pipes with sealing means. The socket coupling portion of the cap nut is inserted into the cap coupling portion of the pipe socket into which the branch pipe is fixed, so that it can be simply pressed and fixed, thereby simplifying the assembly structure of the component and increasing the airtightness of the coupling portion. It relates to a pipe fitting.

In general, in connecting and diverting the supply pipe from the outside and the branch pipe to the place through the pipe fitting, the joints between the pipes are reliably kept tight from the internal pressure or the external shock to pass through the pipe. 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.

In other words, the pipe fitting is composed of a cap nut for crimping and fixing the branch pipe together with the pipe socket into which the branch pipe is inserted and crimped, and the pipe socket and the cap nut around the connecting end of the branch pipe inserted into the longitudinal direction. Confidentiality was required to ensure that the joints of the liver could withstand the harsh environment.

On the other hand, the pipe fittings are structurally improved so that the coupling portion of the pipe fittings can be more reliably sealed with one-touch rotation, and the coupling operation can be relatively easy, as shown in the reference drawings of FIGS. 6 and 7. Introduced in Korean Patent Application Publication No. 95-25317 filed by the applicant is a situation that is widely used in the art.

That is, the sealing seal 120 of butyl rubber and the release shielding ring 130 of plastic or metal are inserted into the cap coupling portion 113 of the pipe socket 110 having a screw formed thereon, and corrosion resistance and heat resistance therebetween. By inserting the excellent copper alloy steel and stainless steel branch pipe 150, the socket coupling portion 141 of the cap nut 140 with a screw formed therein is fastened to be nut-fitted with one-touch rotation, thereby providing a pipe socket ( The sealing packing 120 is pressurized by the cap nut 140 together with the release shield ring 130 to the packing pressing surface 115 in the cap coupling part 113 of the 110 to compress the contraction of the branch pipe 150. The connecting end could be hermetically fixed by a tight structure that can withstand harsh environments in the cap coupling portion 113 of the pipe socket 110 by the rotational tightening force by the socket coupling portion 141 of the cap nut 140.

However, the pipe fittings can be press-fitted with a hermetic holding structure to withstand the connection end of the branch pipe 150 in a harsh environment, but the branch pipe 150 is inserted into the branch pipe 150 as well as the branch pipe 150 The cap nut 140 which compresses and seals 150 together with the sealing means 120 and 130 has a disadvantage in that the production and production cost of the cap nut 140 is very complicated.

The present invention has been devised to solve the structural shortcomings of the conventional pipe fittings, the cap coupling of the pipe socket in which the branch pipe is inserted and fixed to the socket coupling portion of the cap nut for pressing and fixing the branch pipe together with the sealing means It is an object of the present invention to provide a pipe fitting that can simplify the assembly structure of components and increase the airtightness of the coupling part by inserting and fastening it into the part.

1 is an exploded perspective view of a pipe fitting that is a basic embodiment of the present invention.

Figure 2 is a cross-sectional view of the separated state of the pipe fittings which is a basic embodiment of the present invention.

3 is a cross-sectional view of the coupling state of the fitting for the piping is a basic embodiment of the present invention.

Figure 4 is an exploded cross-sectional view of a pipe fitting that is another embodiment of the present invention.

Figure 5 is a cross-sectional view of the coupling state of the fitting for another embodiment of the present invention.

Figure 6 is an exploded cross-sectional view of a pipe fitting according to the prior art.

7 is a cross-sectional view of the coupling state of the pipe fittings 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: compression sealing surface 32: compression sealing surface

40: cap nut 41: socket coupling portion

42: close contact guide 43: tool fastening

50: branch pipe

As a technical means for achieving the above object, the present invention is a basic embodiment, and excellent in bendability and corrosion resistance supply pipe from the outside of copper alloy and stainless steel branch pipe used for heating and water supply pipe or gas pipe from the outside In the pipe fitting for sealing and sealing, the pipe socket is screwed on the outside of the cap coupling so that the socket coupling portion of the cap nut can be fastened inward and the nut can be screwed so that the sealing seal can be inserted into the inside of the cap coupling portion. The surface is inclined, and the sealed packing inserted and pressed into the packing pressing surface of the pipe socket is pressed into the packing pressing surface of the pipe socket on the outside while the pressure-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 curved closed sealing surface, and the closing mill of the sealed packing The release shielding ring has a curved packing surface formed on the inside of the compression sealing surface so as to advance the surface, and forward seal the sealing sealing and release shielding ring with the branch pipe inserted into the sealing packing and the release shielding ring. At the same time, the cap nut is screwed to the outside of the socket coupling portion protruded forward so that the cap nut can be bolted to the cap coupling portion of the pipe socket, and a close contact guide groove is formed in the bent portion of the tool fastening portion.

In addition, as a further simplified embodiment, in the pipe fitting for hermetically connecting the copper alloy and stainless steel branch pipe used for heating and water supply pipe or gas pipe with the supply pipe from the outside due to its excellent bendability and corrosion resistance. The pipe socket is threaded on the outside of the cap coupling so that the socket coupling portion of the cap nut can be coupled to the nut, and the packing crimping surface is inclined so that the sealing seal can be inserted into the inside of the cap coupling portion. The sealing seal inserted into the packing crimping surface is formed at an angle of insertion inclined surface opposite to the closed closed sealing surface to be guided into the packing crimping surface of the pipe socket on the outside thereof, and the sealing packing and the separation shield ring While the branch pipe is inserted inwards, these sealed packings and the release shielding ring are pressed forward. So that it can be bolted to the cap engagement portion of the cap nut socket is characterized in that the contact guide groove formed on the concave bent portion of the fastening tool while bujjok formed screw in the socket engaging portion outwardly projecting forward.

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

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

As shown in the figure, the pipe fitting of the present invention is a pipe socket 10 and the branch pipe 50 is inserted into the branch pipe 50 and the sealing means 20, 30 of the pipe socket 10 The connecting end of the branch pipe 50 by simplifying the structure improvement of the sealing means and the fastening structure between the pipe socket 10 and the cap nut 40, including a cap nut 40 that is fixed to the cap coupling portion 13 by compression. The cap coupling portion 13 of the pipe socket is nut-coupled to the socket coupling portion 41 of the cap nut screwed on the outer side, so that the socket coupling portion 41 of the cap nut may be It is configured to be bolted to the cap coupling portion 13 of the pipe socket, which is screwed on the sealing means by the end of the socket coupling portion 41 of the cap nut bolted into the cap coupling portion 13 of the pipe socket Sealing seal 20 and the separation shield ring 30 is pressed against the coupling gap while more structurally pressurized contact pressure To be decided.

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 As the branch pipe 50 of the alloy steel or stainless steel is inserted and fixed, the socket coupling portion 51 of the cap nut 50 is formed as a cap coupling portion 13 screwed on the inner side so as to be bolted, and the 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 a butyl rubber material having excellent heat resistance and acid resistance to be crimped and fixed to the connecting end of the branch pipe 50 by a sealing means is structurally accurate in the packing crimping surface 15 of the pipe socket. Inserted inclined surface 21 is obliquely curved inclined so that the guide insert can be inserted so that the opposite closing surface 22 can be stably folded by the release shield ring 30 formed of Teflon material having excellent heat resistance and electrical insulation. The packing surface is formed at a steeper inclination angle than the packing pressing surface 15.

In addition, the sealed packing 20 is formed in the ring coupling groove 23 on the inner side of the inclined surface downward to be pressed evenly fixed in a certain shape on the outside of the connection end of the branch pipe 50 to the adhesive strength with the branch pipe. Pressed reinforcing ring (25) of the metal material to reinforce the shape so as to increase the pressure, the pressing reinforcing ring (25) at this time is cut in the middle is inclined at a predetermined angle to be inserted into the hermetic packing (20) This insertion can be prevented from falling back.

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. While the socket coupling portion 41 protrudes forward with an outer diameter smaller than the tool engagement portion 43 so that the ring 30 can be forward-compressed and bolted to the cap coupling portion 13 of the pipe socket 10. The bent portion on the side of the tool fastening portion 43 so that the end of the cap coupling portion 13 of the pipe socket 10 which is screwed on the outside and is nut-coupled can be fastened and fixed while being completely in close contact with the tool fastening portion 43. A close contact guide groove 42 is formed in the groove.

The pipe fitting configured as described above inserts a hard leaving shield ring 40 together 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. Insert the branch pipe 50 made of metal between them in the fastened state, and then tighten the socket coupling portion 41 of the cap nut screwed on the outside into the cap coupling portion 13 of the pipe socket on the inside. When tightened by tightening the cap nut 40, the rigid release shielding ring 30 and the sealing seal 20, which is a soft sealing means, are guided toward the insertion guide end 14 of the pipe socket 10. Pressurized.

Therefore, while the socket coupling portion of the cap nut 50 is rotated into the cap coupling portion 13 of the pipe socket 10, the tool coupling portion 43 of the cap nut 40 is connected to the cap coupling portion 13 of the pipe socket 10. When the fastening is fixed to the close contact to reach the), the sealing seal 20 which is guided and guided to the release shield ring 30 is moved to the packing pressing surface 15 and the branch pipe (50) of the pipe socket (10) It is precisely and evenly clamped and inserted into the assembly gap with the side surface, and as a result, the branch pipe 50 is pressed into the gap between the pipe socket 10 and the cap nut 40, which are fittings for piping. Can be sealed.

On the other hand, Figure 4 and Figure 5 is a cross-sectional view showing the separation and coupling state of the pipe fittings according to another embodiment of the present invention, as shown in the basic embodiment of the pipe socket 10 and the cap nut 40 While the same as the assembly configuration, the outer structure of the sealed packing 20, which is a sealing means of the branch pipe 50, which is substantially the same, is the same, but inside the sealed packing 20 so that an even compression of the sealed packing at the time of crimping can be induced. In addition to the crimp reinforcement ring 25 to be squeezed in the omission shielding ring 30 for preventing the escape of deformation due to the compression operation of the sealing packing 20 can be omitted and applied as a more simple 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 coupled with the branch pipe 50. It can be crimped evenly and securely in the gap.

In addition, the configuration of the above-described embodiment is a preferred embodiment for facilitating the understanding of the present invention, the present design without the deviation of the principle of the present invention, the coupling portion of the pipe socket as a connecting means as a nut and at the same time the capping crimping means The socket coupling portion of the nut can be modified in various forms that can keep the connecting end of the branch pipe hermetically, 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.

According to the pipe fitting according to the present invention described above, the socket coupling portion of the cap nut for crimping and fixing the branch pipe together with the sealing means is bolted to the cap coupling portion of the pipe socket and at the same time the cap coupling portion of the pipe socket is the socket of the cap nut. The structure of the nut can be combined to simplify the overall configuration together with the sealing means, while the sealing means can be pressed and fixed structurally and evenly by the direct tightening pressure of the socket coupling part of the cap nut. As a result, the structure is simplified to facilitate the manufacture of the product, and the effect of improving the airtightness of the joint is provided.

Claims (2)

In the pipe fitting for hermetically connecting 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 excellent bendability and corrosion resistance, the socket coupling of the cap nut 40 is used. The pipe socket 10 is screwed to the outside of the cap coupling portion 13 so that the portion 41 is fastened into the nut and is coupled with the packing pressing surface so that the sealing packing 20 can be inserted into the inside thereof. 15) is inclined, and the sealed packing 20 inserted and pressed into the packing pressing surface 15 of the pipe socket is curved curved so as to be inserted into the packing pressing surface 15 of the pipe socket on the outside thereof. In the state in which the inclined surface 21 of a predetermined angle is formed on the opposite side of the sealing surface 22, and the branch pipe 50 is inserted into the sealing packing 20 and the release shield ring 30, these sealing packing 20 Compress forward and release shield ring (30) At the same time, the cap nut 40 is screwed to the outside of the socket coupling portion 31 protruding forward so that the cap nut 40 can be bolted to the cap coupling portion 13 of the pipe socket. Pipe fittings, characterized in that the induction groove 42 is grooved. The method of claim 1, wherein the pressurized reinforcing ring (25) of the intermediate cut metal material is pressed inside the sealed packing (20), and the closed sealing surface (22) of the sealed packing (20) may be pressed forward. Fitting fittings for the piping, characterized in that the packing pressing surface 32 is formed inside the compression sealing surface 31 of the separation shield ring 30 so that.