KR20210110004A - Connecting fitting formed by chlorinated polyvinyl chloride - Google Patents

Abstract

The present invention relates to a chlorinated polyvinyl chloride (CPVC) connection pipe. According to the present invention, the CPVC connection pipe comprises: a first pipe housing which includes a pipe derivative making an extension pipe penetrate, and a pipe receptor which is formed as one with the pipe derivative and surrounds the extension pipe, and which makes the extension pipe protrude from the other side of the pipe derivative; and a second pipe housing which includes a pipe contact body inserted into the pipe receptor and making the extension pipe penetrate, a pipe border body formed as one with the pipe contact body and surrounding an end unit of the extension pipe, and a pipe settlement body formed as one with the pipe border body and extending toward the opposite side to the pipe contact body and exposing the extension pipe to a CPVC branch pipe. The pipe receptor and the pipe contact body, with the first pipe housing engaged with the second pipe housing, have a one-side incision locking ring which diagonally faces on the pipe receptor or the pipe contact body and moves by being bound with a certain area between the pipe receptor and the pipe contact body, and are bound with each other through the one-side incision locking ring. Therefore, it is possible to return a twisted form of a corrugated pipe into the initial form of the corrugated pipe.

Description

CPVC CONNECTION PIPING {CONNECTING FITTING FORMED BY CHLORINATED POLYVINYL CHLORIDE}

The present invention relates to a CPVC connecting pipe located between a Chlorinated Polyvinyl Chloride (CPVC) branch pipe connected to a transverse pipe and an expansion pipe connected to a sprinkler head in a building.

In general, a building is equipped with a fire-fighting facility, including a riser pipe, a transverse pipe, a connecting pipe, an expansion pipe, a reducer, and a sprinkler. The standing pipe is located along the wall of the building, and the transverse pipe, the connecting pipe, the expansion pipe, and the sprinkler are positioned around the ceiling of the building. More specifically, the standing pipe delivers fire-fighting water from a water source supplied from under the building or from the roof of the building to the horizontal pipe.

The transverse pipe receives fire-fighting water from the standing pipe and delivers fire-fighting water to the connecting pipe, the expansion pipe, the reducer, and the sprinkler. Here, the transverse main pipe is connected to the CPVC connecting pipe through a CPVC (Chlorinated Polyvinyl Chloride) branch pipe. The expansion tube consists of a corrugated pipe and a bellows surrounding the corrugated pipe.

However, the CPVC connection pipe is fixed to the CPVC branch pipe and the expansion pipe while being fixed to the ceiling together with the expansion pipe, the reducer and the sprinkler, and vibrates together with the building when an earthquake occurs from the outside of the building. Since the CPVC connecting pipe fixes the CPVC branch pipe and the expansion pipe, the expansion pipe contracts or stretches in the longitudinal direction of the corrugated pipe during the occurrence of an earthquake.

The bellows prevents excessive sagging of the corrugated pipe in the longitudinal direction of the corrugated pipe. Similarly, the telescopic tube may warp in the diametrical direction of the corrugated tube during the occurrence of an earthquake. The bellows does not restore the twisted shape of the corrugated pipe to the initial shape of the corrugated pipe. The twisted shape of the corrugated pipe finally tears the corrugated pipe, causing leakage of firefighting water from the corrugated pipe.

The leakage of the fire-fighting water prevents the initial suppression of the fire at the time of the fire through the fire-fighting facility when a fire occurs in the building. On the other hand, the CPVC connection pipe is similarly disclosed as a prior art in Korean Patent Application Laid-Open No. 10-2016-0044766.

Korean Patent Publication No. 10-2016-0044766

The present invention has been devised to solve the problems of the prior art, and it is suitable for restoring the twisted shape of the corrugated pipe in the expansion pipe to the initial shape of the corrugated pipe even during the earthquake of the building when an earthquake occurs from the outside of the building To provide a CPVC connection pipe. There is a purpose.

The CPVC connection pipe according to the present invention is located between the CPVC (Chlorinated Polyvinyl Chloride) branch pipe connected to the horizontal main pipe in the building and the expansion pipe connected to the sprinkler head, with the pipe derivative penetrating the expansion pipe, the pipe derivative a first tube housing formed integrally with the tube housing to surround the expansion tube and to protrude the expansion tube on the opposite side of the tube derivative; and a tube eyepiece that is inserted into the tube receptor and penetrates the telescopic tube, and a tube boundary body that is integrally formed with the tube eyepiece and surrounds the end of the expandable tube, and is integrally formed with the tube boundary body and a second tube housing made of a tube seat body extending toward the opposite side of the tube eyepiece and exposing the expansion tube to the CPVC branch tube, wherein the tube receptor and the tube eyepiece include the first tube housing and the In the coupled state of the second tube housing, facing obliquely in the tube receptor or the tube eyepiece along the longitudinal direction of the expansion tube, the one-sided incision locking ring is constrained and moved in a predetermined area between the tube receptor and the tube eyepiece. has, and is bound to each other through the one-side incision locking ring, and the tube receptor is, in the coupled state of the first tube housing and the second tube housing, along the circumference of the one-side incision locking ring, the tube eyepiece It is characterized in that it rotates relative to

The first tube housing and the second tube housing insert the telescopic tube into the tube derivative, the tube receptor, the tube eyepiece, and the tube boundary body, and the second tube housing is in the CPVC branch pipe. Inserting the tube seat body or inserting the CPVC branch pipe to the tube seat body, the tube seat body may be fixed to the CPVC branch pipe through a glue adhesive.

The tubular derivative, when viewed from the outside of the tubular derivative, is spaced apart from the tubular receptor and has a size smaller than the outer diameter of the tubular receptor, and the tubular derivative has a size smaller than the outer diameter of the tubular receptor, and the It gradually increases toward the outer diameter, and the tube receptor may have the same outer diameter as the whole of the tube receptor when looking at the exterior of the tube receptor.

The tube derivative and the tube receptor have a guide hole and a receiving hole that sequentially pass through the inner wall of the tube derivative and the inner wall of the tube receptor and communicate with each other, and the inner wall of the tube derivative comprises: It may have a pad ring groove for inserting the pad rubber ring on the path of the guide hole of the tube derivative.

The inner wall of the tube receptor may have a first locking semi-groove for accommodating the one-side incision locking ring on the path of the receiving hole of the tube receptor.

The inner wall of the tube receptor has a circular ring groove for fitting a circular rubber ring near the pad rubber ring, and a first incision locking ring for accommodating the one-sided locking ring on the path of the receiving hole of the tube receptor away from the pad rubber ring With one locking semi-groove, the outer wall of the tube receptor may have a polygonal handle grip pattern on the first locking semi-groove of the tube receptor.

The inner wall of the tube derivative has a first circular ring groove for fitting a circular rubber ring in front of the pad rubber ring on the path of the guide hole of the tube derivative, and the inner wall of the tube receptor includes the pad rubber ring a second circular ring groove for fitting a circular rubber ring on the path of the receiving hole of the tube receptor in the vicinity, and receiving the one-side incision locking ring on the path of the receiving hole of the tube receptor away from the pad rubber ring With one locking semi-groove, the outer wall of the tube receptor may have a polygonal handle grip pattern on the first locking semi-groove of the tube receptor.

The inner wall of the tube derivative has a first circular ring groove for fitting a circular rubber ring in front of the pad rubber ring on the path of the guide hole of the tube derivative, and the inner wall of the tube receptor is A first locking semi-groove for accommodating the one-side incision locking ring on the path of the receiving hole, the outer wall of the tube receptor may have a polygonal handle grip pattern on the first locking semi-groove of the tube receptor have.

The guide hole of the tube derivative and the tube receptor have the same diameter in the tube derivative and the tube receptor, and the pad ring groove of the tube derivative is, when viewed from the guide hole of the tube derivative, of the tube derivative. Protruding from the induction hole toward the outer wall of the tube derivative, the receiving hole of the tube receptor gradually spreads from the induction hole of the tube receptor when viewed with respect to the induction hole of the tube receptor. The guide hole may be exposed to the second tube housing.

The tube eyepiece, the tube boundary body, and the tube seat body sequentially pass through the inner wall of the tube eyepiece, the inner wall of the tube boundary, and the inner wall of the tube seat, and communicate with each other. has a hole and a seating hole, the outer wall of the tube eyepiece has a second locking semi-groove on the eyepiece hole of the tube eyepiece for receiving the one-side incision locking ring, the tube boundary body close to the tube eyepiece may have a polygonal handle holding pattern along the outer wall of the tube boundary body.

The inner wall of the tube eyepiece has first and second square ring grooves for fitting a square rubber ring on the path of the eyepiece hole of the tube eyepiece, and the second locking semi-groove of the tube eyepiece includes: located in the region between the first and second square ring grooves of the eyepiece, and in the coupled state of the first tube housing and the second tube housing, directly below the first locking semi-groove of the tube receptor. It may face the first locking semi-groove.

The tube derivative has an expansion tube end of the expansion tube at the end of the tube derivative on the opposite side of the second tube housing, and expands the expansion tube from the pad rubber ring of the tube derivative to expand under the pad rubber ring. having a tube portion, and contacting the expansion tube with the inner wall of the tube derivative between the expansion end of the expansion tube and the expansion portion, and the tube eyepiece, the inner wall of the tube eyepiece and the square rubber The expansion and contraction tube may be closely attached to the ring.

The tube eyepiece, the tube boundary body, and the tube seat body sequentially pass through the inner wall of the tube eyepiece, the inner wall of the tube boundary, and the inner wall of the tube seat, and communicate with each other. has a hole and a seating hole, the outer wall of the tube eyepiece has a second locking semi-groove on the eyepiece hole of the tube eyepiece for receiving the one-side incision locking ring, the tube boundary body close to the tube eyepiece may have a polygonal handle holding pattern along the outer wall of the tube boundary body.

In the coupled state of the first tube housing and the second tube housing, the tube eyepiece is inserted into the tube receptor to contact the circular rubber ring of the tube receptor, and the second locking semi-groove of the tube eyepiece. The silver may face the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion end of the expansion tube at the end of the tube derivative on the opposite side of the second tube housing, and expands the expansion tube from the rubber pad ring of the tube derivative to expand under the rubber pad ring. having a pipe portion, and contacting the expansion tube with the inner wall of the tube derivative between the expansion end of the tube and the expansion portion of the expansion tube, and the tube eyepiece, wherein the tube eyepiece is expanded and contracted on the inner wall of the tube eyepiece The tube can be attached.

The tube eyepiece, the tube boundary body, and the tube seat body sequentially pass through the inner wall of the tube eyepiece, the inner wall of the tube boundary, and the inner wall of the tube seat, and communicate with each other. has a hole and a seating hole, the outer wall of the tube eyepiece has a second locking semi-groove on the eyepiece hole of the tube eyepiece for receiving the one-side incision locking ring, the tube boundary body close to the tube eyepiece may have a polygonal handle holding pattern along the outer wall of the tube boundary body.

In the coupled state of the first tube housing and the second tube housing, the tube eyepiece is inserted into the tube receptor and in contact with the circular rubber ring of the second circular ring groove in the tube receptor, the tube eyepiece The second locking semi-groove of the tube receiver may face the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion end of the expansion tube at the end of the tube derivative on the opposite side of the second tube housing, and expands the expansion tube from the rubber pad ring of the tube derivative to expand under the rubber pad ring. having a tube portion, and contacting the expansion tube to the circular rubber ring of the first circular ring groove between the expansion tube terminal portion of the expansion tube and the expansion tube portion, and the tube eyepiece, the inner wall of the tube eyepiece The expansion and contraction tube may be closely attached to the .

The tube eyepiece, the tube boundary body, and the tube seat body sequentially pass through the inner wall of the tube eyepiece, the inner wall of the tube boundary, and the inner wall of the tube seat, and communicate with each other. has a hole and a seating hole, the outer wall of the tube eyepiece has a second lock semi-groove for receiving the one-side incision lock ring on the eyepiece hole of the tube eyepiece, the second lock semi-groove of the tube eyepiece Having second and third circular ring grooves for accommodating circular rubber rings on both sides, the tube boundary body may have a polygonal handle holding pattern along the outer wall of the tube boundary body near the tube eyepiece. .

In the coupled state of the first tube housing and the second tube housing, the tube receptor and the tube eyepiece are inserted into the tube receptor, and the second and third circular ring grooves are inserted between the tube receptor and the tube eyepiece. With the circular rubber ring of, the second locking semi-groove of the tube eyepiece may face the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion end of the expansion tube at the end of the tube derivative on the opposite side of the second tube housing, and expands the expansion tube from the rubber pad ring of the tube derivative to expand under the rubber pad ring. having a tube portion, and contacting the expansion tube to the circular rubber ring of the first circular ring groove between the expansion tube terminal portion of the expansion tube and the expansion tube portion, and the tube eyepiece, the inner wall of the tube eyepiece The expansion and contraction tube may be closely attached to the .

The first locking semi-groove of the tube receptor and the second locking semi-groove of the tube eyepiece may include, in the coupled state of the first tube housing and the second tube housing, the one side between the tube receptor and the tube eyepiece. By constraining the incision locking ring, the movement of the one-side incision locking ring may be restricted.

When the tube seat body is surrounded by the CPVC branch pipe, the tube boundary body is surrounded by the polygon handle holding pattern around the tube eyepiece and from the polygon handle grip pattern toward the tube seat body. Inclined, the eyepiece hole of the tube eyepiece and the tube boundary body may have a larger size than the seating hole of the tube boundary body and the tube seat body.

When the tube seat body surrounds the CPVC branch pipe, the tube boundary body is surrounded by the polygonal handle holding pattern between the tube eyepiece and the tube seat body, the tube eyepiece and the tube The eyepiece hole of the boundary body may have a smaller size than the seating hole of the tube seat body.

When the tube seat body surrounds the CPVC branch pipe, the tube boundary body is surrounded by the polygon handle holding pattern around the tube eyepiece and the tube seat body from the polygon handle holding pattern inclined toward, the eyepiece hole of the tube eyepiece and the tube boundary body may have a smaller size than the seating hole of the tube boundary body and the tube seat body.

The CPVC connecting pipe according to the present invention consists of a first pipe housing and a second pipe housing, and sequentially connects an expansion pipe, a reducer, and a sprinkler head to the first pipe housing, and fixes the sprinkler head to the ceiling through the reducer Even if the CPVC branch pipe is connected to the second pipe housing while the CPVC branch pipe is fixed to the transverse pipe, the second pipe housing is inserted into the first pipe housing to rotate the second pipe housing relative to the first pipe housing. When an earthquake occurs from the outside of the building, the twisted shape of the corrugated pipe in the expansion pipe can be restored to the initial shape of the corrugated pipe even during the earthquake of the building.

1 is a schematic diagram showing a CPVC branch pipe coupled to a CPVC connecting pipe according to a first embodiment of the present invention.
FIG. 2 is an exploded view showing a first tube housing and a second tube housing in the CPVC connecting pipe of FIG. 1 .
3 is a side view showing a second pipe housing in the CPVC connecting pipe of FIG. 1 .
4A and 4B are cross-sectional views (cross-sectional and side views) illustrating a first modified example of the CPVC connecting pipe of FIG. 1 .
5A and 5B are cross-sectional views (cross-sectional and side views) illustrating a second modified example of the CPVC connecting pipe of FIG. 1 .
6A and 6B are cross-sectional views (cross-sectional and side views) illustrating a third modified example of the CPVC connecting pipe of FIG. 1 .
7 is a schematic diagram showing a CPVC branch pipe coupled to a CPVC connecting pipe according to a second embodiment of the present invention.
8 is an exploded view showing a first tube housing and a second tube housing in the CPVC connecting pipe of FIG. 7 .
9 is a side view showing a second pipe housing in the CPVC connecting pipe of FIG. 7 .
10A and 10B are cross-sectional views (cross-sectional and side views) illustrating a first modified example of the CPVC connecting pipe of FIG. 7 .
11A and 11B are cross-sectional views (cross-sectional and side views) illustrating a second modified example of the CPVC connecting pipe of FIG. 7 .
12A and 12B are cross-sectional views (cross-sectional and side views) illustrating a third modified example of the CPVC connecting pipe of FIG. 7 .
13 and 14 are schematic diagrams illustrating a method of use of the CPVC connecting pipe of FIG. 1 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention set forth below refers to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. In the drawings, like reference numerals refer to the same or similar functions in various aspects, and the length, area, thickness, and the like may be exaggerated for convenience.

Hereinafter, in order to enable those of ordinary skill in the art to easily practice the present invention, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a CPVC branch pipe coupled to a CPVC connecting pipe according to a first embodiment of the present invention, and FIG. 2 is an exploded view showing a first pipe housing and a second pipe housing in the CPVC connecting pipe of FIG. 1, 3 is a side view showing a second pipe housing in the CPVC connecting pipe of FIG. 1 .

1 to 3, the CPVC connection pipe 150 according to the present invention is configured to be positioned between a CPVC (Chlorinated Polyvinyl Chloride) branch pipe connected to a horizontal pipe in a building and an expansion pipe connected to a sprinkler head. Schematically, the CPVC connection pipe 150 includes a first pipe housing 60 and a second pipe housing 140 .

The first tube housing 60 is integrally formed with the tube derivative 25 together with the tube derivative 25 penetrating the expansion tube ( 410 in FIG. 4 or 5 or FIG. 6 or 14 ) to form the expansion tube. It consists of a tube receptor 45 that surrounds the 410 and projects the expansion tube 410 on the opposite side of the tube derivative 25 .

The second tube housing 140 is integrally formed with the tube eyepiece 85 and the tube eyepiece 85 that is inserted into the tube receptor 45 and penetrates the expansion tube 410, and the expansion tube 410 is formed. The tube boundary body 105 surrounding the end of the tube boundary body 105, and the expansion tube 410 while extending toward the opposite side of the tube eyepiece 85 formed integrally with the tube boundary body 105 to the CPVC branch pipe (4) It consists of a tube seat 115 that is exposed.

The tube receptor 45 and the tube eyepiece 85, in the coupled state of the first tube housing 60 and the second tube housing 140, along the longitudinal direction of the expansion tube 410, the tube receptor 45 Or the one-sided incision locking ring 135 that is constrained and moved in a predetermined area between the interface 33 of the tube receptor 45 and the interface 83 of the tube eyepiece 85 facing obliquely in the tube eyepiece 85 and binds to each other through one incision locking ring 135 . The one-side cut-out lock ring 135 is a metal ring having elasticity.

The tube receptor 45 is rotated relative to the tube eyepiece 85 along the circumference of the one-side incision lock ring 135 in the coupled state of the first tube housing 60 and the second tube housing 140 . do. In more detail, the first tube housing 60 and the second tube housing 140 are connected to the tube derivative 25 , the tube receptor 45 , the tube eyepiece 85 and the tube boundary body 105 . The expansion tube 410 is inserted.

The second tube housing 140 is made of a male type (male type) in which the tube seat 115 is inserted into the CPVC branch tube 4 . The tube seat body 115 is fixed to the CPVC branch pipe 4 through a glue adhesive (not shown in the drawing). That is, the glue (Glue) adhesive is located at the overlapping portion of the tube seat 115 on the CPVC branch pipe (4).

The tube derivative 25, when looking at the appearance of the tube derivative 25, is spaced apart from the tube receptor 25 and has a constant size smaller than the outer diameter of the tube receptor 45, and is close to the tube receptor 45. It gradually increases from a certain outer diameter of the derivative 25 toward the outer diameter of the tube receptor 45 . The tube receptor 45 has the same outer diameter in the entire tube receptor 45 when the external appearance of the tube receptor 45 is viewed.

The tube derivative 25 and the tube receptor 45 sequentially pass through the inner wall of the tube derivative 25 and the inner wall of the tube receptor 45 and communicate with each other through a guide hole 14 and a receiving hole ( 36). The inner wall of the tube guide 25 has a pad ring groove 18 for fitting the pad rubber ring 55 on the path of the guide hole 14 of the tube guide 25 .

The inner wall of the tube receptor 45, when the receiving hole of the tube receptor 45, gradually spreads from the induction hole 14 of the tube receptor 45 to form the induction hole 14 of the tube receptor 45 into the second exposed to the tube housing 140 .

The tube eyepiece 85 and the tube boundary body 105 and the tube seat body 115 are the inner wall of the tube eyepiece 85 and the inner wall of the tube boundary body 105 and the tube seat body 115 of the It sequentially passes through the inner wall and has an eyepiece hole 72 and a seating hole 95 communicating with each other. The outer wall of the tube eyepiece 85 has a second locking semi-groove 78 for receiving a one-side incision locking ring 135 on the eyepiece hole 72 of the tube eyepiece 85 .

The tube boundary body 105 has a polygonal handle holding pattern 101 along the outer wall of the tube boundary body 105 near the tube eyepiece 85 . The polygonal handle holding pattern (101) is, during the coupling of the first tube housing (60) and the second tube housing (140), the tube derivative (25) and the tube receptor (45) for the tube eyepiece (85). ) makes it impossible to move the tube eyepiece 85, the tube boundary body 105, and the tube seat 115 during the relative rotation of the tube.

The inner wall of the tube eyepiece 85 has first and second square ring grooves 74 and 76 for fitting the square rubber ring 125 on the path of the eyepiece hole 72 of the tube eyepiece 85 . . The second locking semi-groove (78) of the tube eyepiece (85) is located in the area between the first and second square ring grooves (74, 78) of the tube eyepiece (85), the first tube housing (60) In the coupled state between the second tube housing 140 and the first locking semi-groove 39 of the tube receptor 45 , it faces the first locking semi-groove 39 of the tube receptor 45 .

The tube derivative 25 has, at the end of the tube derivative 25 on the other side of the second tube housing 140 , an expansion tube end 403 of the expansion tube 410 as shown in FIG. 14 , The expansion tube 410 is expanded from the pad rubber ring 55 of the derivative 25 to have the expansion tube portion 402 under the pad rubber ring 55, and the expansion tube end 403 and the expansion tube 403 of the expansion tube 410 are expanded. The expansion tube 410 is brought into contact with the inner wall of the tube derivative 25 between the tube portions 402 .

The tube eyepiece 85 is in close contact with the expansion tube 410 to the inner wall and square rubber ring 125 of the tube eyepiece 85 . The first locking semi-groove 39 of the tube receptor 45 and the second locking semi-groove 78 of the tube eyepiece 85 are formed in the coupled state between the first tube housing 60 and the second tube housing 140 . , restricts the movement of the one-side incision locking ring 135 by restraining the one-side incision locking ring 135 between the tube receptor 45 and the tube eyepiece 85 .

When the tube seat body 115 is surrounded by the CPVC branch pipe 4 , the tube boundary body 105 is surrounded by a polygonal handle holding pattern 101 around the tube eyepiece 85 . and the polygonal handle grip pattern 101 is inclined toward the tube seat body 115, and the eyepiece hole 72 of the tube eyepiece 85 and the tube boundary body 105 is, the tube boundary body 105 and the tube seat It has a larger size than the mounting hole 95 of the sieve 115 .

4A and 4B are cross-sectional views (cross-sectional and side views) illustrating a first modified example of the CPVC connecting pipe of FIG. 1 . In this case, since the first and second tube housings of FIGS. 4A and 4B have the same components as the first and second tube housings of FIGS. 1 to 3 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 1 to 3 .

4A and 4B, the CPVC connection pipe 153 is similar to the CPVC connection pipe 150 of FIGS. 1 to 3, and thus, for the description of the present invention, the CPVC connection pipe of FIGS. Only differences from (150) are explained. That is, in the first tube housing 63 of the CPVC connecting pipe 153 , the inner wall of the tube receptor 63 is a circular ring groove (Fig. has not shown).

In addition, the inner wall of the tube receptor 63 has a first locking semi-groove for accommodating the one-side incision locking ring (135 in FIG. 2 or FIG. 3 ) on the path of the receiving hole of the tube receptor far from the pad rubber ring 55 . have The outer wall of the tube receptor has a polygonal handle grip pattern 46 on the first locking semi-groove of the tube receptor.

In the second tube housing 143 of the CPVC connecting pipe 153, the tube eyepiece, the tube boundary body, and the tube seat body are the inner wall of the tube eyepiece and the inner wall of the tube boundary body and the inner wall of the tube seat body having an eyepiece hole and a seating hole passing through the sidewall sequentially and communicating with each other, the outer wall of the tube eyepiece has a second locking semi-groove for receiving the one-side incision lock ring 135 on the eyepiece hole of the tube eyepiece .

The tube boundary body has a polygonal handle holding pattern 106 along the outer wall of the tube boundary near the tube eyepiece. In the coupled state of the first tube housing 63 and the second tube housing 143, the tube eyepiece is inserted into the tube receptor and in contact with the circular rubber ring 127 of the tube receptor, The 2 locking semi-groove faces the upper first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative on the opposite side of the second tube housing 143, and the expansion tube 410 at the rubber pad ring 55 of the tube derivative ) to have an expanded pipe part 402 under the rubber pad ring 55, and an expansion pipe 410 on the inner wall of the pipe derivative between the expansion end 403 and the expansion pipe 402 of the expansion pipe 410 ) is brought into contact.

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece.

5A and 5B are cross-sectional views (cross-sectional and side views) illustrating a second modified example of the CPVC connecting pipe of FIG. 1 . In this case, since the first and second tube housings of FIGS. 5A and 5B have the same components as the first and second tube housings of FIGS. 1 to 3 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 1 to 3 .

5A and 5B, the CPVC connecting pipe 156 is similar to the CPVC connecting pipe 150 of FIGS. 1 to 3, so for the description of the present invention, the CPVC connecting pipe of FIGS. 1 to 3 Only differences from (150) are explained. That is, in the first tube housing 66 of the CPVC connecting pipe 156, the inner wall of the tube derivative has a circular rubber ring 127 in front of the pad rubber ring 55 on the path of the guide hole of the tube derivative. It has a first circular ring groove for fitting.

The inner wall of the tube receptor has a second circular ring groove that fits the circular rubber ring 127 on the path of the receiving hole of the tube receptor near the pad rubber ring 55, and the pad rubber ring 55 is far from the tube receptor. It has a first locking semi-groove for accommodating the one-side cut-out locking ring 135 on the path of the receiving hole.

The outer wall of the tube receptor has a polygonal handle grip pattern 47 on the first locking semi-groove of the tube receptor. In the second tube housing 146 of the CPVC connecting pipe 156, the tube eyepiece, the tube boundary body, and the tube seat body are the inner wall of the tube eyepiece and the inner wall of the tube boundary body and the inner wall of the tube seat body. It has an eyepiece hole and a seating hole passing through the sidewall sequentially and communicating with each other.

The outer wall of the tube eyepiece has a second locking semi-groove for receiving the one-side incision locking ring 135 on the eyepiece hole of the tube eyepiece. The tube boundary body has a polygonal handle holding pattern (107) along the outer wall of the tube boundary body near the tube eyepiece. In the coupled state of the first tube housing 66 and the second tube housing 146 , the tube eyepiece is inserted into the tube receptor and comes into contact with the circular rubber ring of the second circular ring groove in the tube receptor.

The second locking semi-groove of the tube eyepiece faces the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor. The tube derivative has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative on the opposite side of the second tube housing 146, and the expansion tube 410 at the rubber pad ring 55 of the tube derivative has an expanded pipe part 402 under the rubber pad ring 55 by expanding it, and a circular rubber ring 127 of a first circular ring groove between the expansion end part 403 of the expansion pipe 410 and the expansion pipe part 402. is brought into contact with the expansion tube 410 .

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece.

6A and 6B are cross-sectional views (cross-sectional and side views) illustrating a third modified example of the CPVC connecting pipe of FIG. 1 . In this case, since the first and second tube housings of FIGS. 6A and 6B have the same components as the first and second tube housings of FIGS. 1 to 3 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 1 to 3 .

6A and 6B, since the CPVC connecting pipe 159 is similar to the CPVC connecting pipe 150 of FIGS. 1 to 3, for the explanation of the present invention, the CPVC connecting pipe of FIGS. 1 to 3 Only differences from (150) are explained. That is, in the first tube housing 69 of the CPVC connecting pipe 159, the inner wall of the tube derivative has a circular rubber ring 127 in front of the pad rubber ring 55 on the path of the guide hole of the tube derivative. It has a first circular ring groove for fitting.

The inner wall of the tube receptor has a first locking semi-groove for accommodating the one-side incision locking ring 135 on the path of the receiving hole of the tube receptor. The outer wall of the tube receptor has a polygonal handle grip pattern 48 on the first locking semi-groove of the tube receptor.

In the second tube housing 149 of the CPVC connecting pipe 159, the tube eyepiece, the tube boundary body, and the tube seat body are, the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body It has an eyepiece hole and a seating hole passing through the sidewall sequentially and communicating with each other. The outer wall of the tube eyepiece has a second locking semi-groove for receiving a one-sided incision locking ring 135 on the eyepiece hole of the tube eyepiece, and circular rubber rings 127 on both sides of the second locking semi-groove of the tube eyepiece. ) having second and third circular ring grooves for receiving.

The tube boundary body has a polygonal handle holding pattern 108 along the outer wall of the tube boundary near the tube eyepiece. In the coupled state of the first tube housing and the second tube housing, the tube receptor and the tube eyepiece are inserted into the tube receptor, and the circular rubber rings 127 of the second and third circular ring grooves are inserted between the tube receptor and the tube eyepiece. , wherein the second locking semi-groove of the tube eyepiece faces the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative on the opposite side of the second tube housing 149, and expands the expansion tube at the rubber pad ring 55 of the tube derivative. It has an expansion pipe part 402 under the rubber pad ring 55, and the expansion pipe is attached to the circular rubber ring 127 of the first circular ring groove between the expansion end part 403 of the expansion pipe 410 and the expansion pipe part 402. (410) is brought into contact.

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece.

7 is a schematic diagram showing a CPVC branch pipe coupled to a CPVC connecting pipe according to a second embodiment of the present invention. 8 is an exploded view showing the first tube housing and the second tube housing in the CPVC connecting pipe of FIG. 7 , and FIG. 9 is a side view showing the second tube housing in the CPVC connecting pipe of FIG. 7 .

7 to 9, the CPVC connection pipe 300 according to the present invention is configured to be positioned between a CPVC (Chlorinated Polyvinyl Chloride) branch pipe connected to a horizontal pipe in a building and an expansion pipe connected to a sprinkler head. Schematically, the CPVC connection pipe 300 includes a first pipe housing 210 and a second pipe housing 290 .

The first tube housing 210 is integrally formed with the tube derivative 175 together with the tube derivative 175 penetrating the expansion tube ( FIG. 4 or 10 or 410 of FIG. 11 or 12 ) to form the expansion tube. It consists of a tube receptor 195 for protruding an expansion tube 410 on the opposite side of the tube derivative 175 while surrounding the 410 .

The second tube housing 290 is a tube eyepiece 235 that is inserted into the tube receptor 195 and penetrates the expansion tube 410, and the tube eyepiece 235 is integrally formed with the expansion tube 410. The tube boundary body 255 surrounding the end of the tube boundary body 255 and the tube boundary body 255 are integrally formed and extend toward the opposite side of the tube eyepiece 235 while extending the expansion tube 410 to the CPVC branch pipe 8. It consists of a tube seat 265 that is exposed.

The tube receptor 195 and the tube eyepiece 235 are coupled to the first tube housing 210 and the second tube housing 290 along the longitudinal direction of the expansion tube 410 in the tube receptor 195 Or one side incision locking ring 285 that is constrained to move obliquely in the tube eyepiece 235 and is constrained to a predetermined area between the boundary surface 183 of the tube receptor 195 and the boundary surface 233 of the tube eyepiece 235 and binds to each other through one incision locking ring 285 .

The tube receptor 195 is rotated relative to the tube eyepiece 235 along the circumference of the one-side incision lock ring 285 in the coupled state of the first tube housing 210 and the second tube housing 290 . do. In more detail, the first tube housing 210 and the second tube housing 290 are in the tube derivative 175 , the tube receptor 195 , the tube eyepiece 235 and the tube boundary body 255 . The expansion tube 410 is inserted.

The second tube housing 290 is made of a female type (female type) in which the CPVC branch pipe 8 is inserted into the tube seat 265 . The tube seat 265 is fixed to the CPVC branch pipe 8 through a glue adhesive (not shown in the drawing). That is, the glue (Glue) adhesive is located at the overlapping portion of the CPVC branch pipe (8) on the pipe seat body (265).

The tube derivative 175, when looking at the appearance of the tube derivative 175, is spaced apart from the tube receptor 195 and has a constant size smaller than the outer diameter of the tube receptor 195, and is close to the tube receptor 195. From a constant outer diameter of the derivative 175 toward the outer diameter of the tube receptor 195 gradually increases. The tube receptor 195 has the same outer diameter as the entire tube receptor 195 when looking at the exterior of the tube receptor 195 .

The tube derivative 175 and the tube receptor 195 sequentially penetrate the inner wall of the tube derivative 175 and the inner wall of the tube receptor 195 and communicate with each other through an induction hole 164 and a receiving hole ( 186). The inner wall of the tube derivative 175 has a pad ring groove 168 for fitting the pad rubber ring 205 on the path of the guide hole 164 of the tube derivative 175 .

The inner wall of the tube receptor 195 has a first locking semi-groove 189 for accommodating the one-side incision locking ring 285 on the path of the receiving hole 186 of the tube receptor 195 . The guide hole 164 of the tube derivative 175 and the tube receptor 195 has the same diameter as the tube derivative 175 and the tube receptor 195 .

The pad ring groove 168 of the tube derivative 175 is formed on the outside of the tube derivative 175 from the guide hole 164 of the tube derivative 175 when viewed with respect to the guide hole 164 of the tube derivative 175 . protrude towards the wall. The receiving hole 186 of the tube receptor 195 is gradually widened from the induction hole 164 of the tube receptor 195 when viewed with respect to the induction hole 164 of the tube receptor 195, and the tube receptor 195 ) of the guide hole 164 is exposed to the second tube housing 290 .

The tube eyepiece 235 and the tube boundary body 255 and the tube seat body 265 are the inner wall of the tube eyepiece 235 and the inner wall of the tube boundary body 255 and the tube seat body 265 . It sequentially passes through the inner wall and has an eyepiece hole 222 and a seating hole 245 communicating with each other. The outer wall of the tube eyepiece 235 has a second locking semi-groove 228 for receiving a one-side incision locking ring 285 on the eyepiece hole 222 of the tube eyepiece 235 .

The tube boundary body 255 has a polygonal handle holding pattern 251 along the outer wall of the tube boundary body 255 near the tube eyepiece 235 . The polygonal handle holding pattern (251), during the coupling of the first tube housing (210) and the second tube housing (290), the tube derivative (175) and the tube receptor (195) for the tube eyepiece (235). ) makes it impossible to move the tube eyepiece 235 and the tube boundary body 255 and the tube seat 265 during the relative rotation of the tube.

The inner wall of the tube eyepiece 235 has first and second square ring grooves 224 and 226 for fitting the square rubber ring 275 on the path of the eyepiece hole 222 of the tube eyepiece 235 . . The second locking semi-groove 228 of the tube eyepiece 235 is located in the area between the first and second square ring grooves 224 , 228 of the tube eyepiece 235 , the first tube housing 210 . In the coupled state between the second tube housing 290 and the first locking semi-groove 189 of the tube receptor 195 , it faces the first locking semi-groove 189 of the tube receptor 195 .

The tube derivative 175 has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative 175 on the opposite side of the second tube housing 210 when considering FIGS. 10 and 14 . , the expansion tube 410 is expanded from the pad rubber ring 205 of the tube derivative 175 to have the expansion tube portion 402 under the pad rubber ring 205, and the expansion end portion 403 of the expansion tube 410 The expansion tube 410 is brought into contact with the inner wall of the tube derivative 25 between the tube and the expansion tube 402 .

The tube eyepiece 85 is in close contact with the expansion tube 410 to the inner wall and the square rubber ring 275 of the tube eyepiece 235. The first locking semi-groove 189 of the tube receptor 195 and the second locking semi-groove 228 of the tube eyepiece 235 are formed in the coupled state between the first tube housing 210 and the second tube housing 290 . , between the tube receptor 195 and the tube eyepiece 235 to restrict the movement of the one-side incision locking ring 285 by restraining the locking ring 285 .

When the tube seat body 265 surrounds the CPVC branch pipe 8 , the tube boundary body 255 has a polygonal handle holding pattern between the tube eyepiece 235 and the tube seat body 265 . Surrounded by 251 , the eyepiece hole 222 of the tube eyepiece 235 and the tube boundary body 255 has a smaller size than the seating hole 245 of the tube eyepiece 265 .

10A and 10B are cross-sectional views (cross-sectional and side views) illustrating a first modified example of the CPVC connecting pipe of FIG. 7 . In this case, since the first and second tube housings of FIGS. 10A and 10B have the same components as the first and second tube housings of FIGS. 7 to 9 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 7 to 9 .

10A and 10B, the CPVC connection pipe 303 is similar to the CPVC connection pipe 300 of FIGS. 7 to 9, so for the description of the present invention, the CPVC connection pipe of FIGS. 7 to 9 Only differences from (300) are described. That is, in the first tube housing 213 of the CPVC connection pipe 303 , the inner wall of the tube receptor is a circular ring groove (not shown in the drawing) for inserting the circular rubber ring 277 near the pad rubber ring 205 . ) has

In addition, the inner wall of the tube receptor has a first locking semi-groove for receiving the one-sided incision locking ring (285 in FIG. 8 or FIG. 9 ) on the path of the receiving hole of the tube receptor away from the pad rubber ring 205 . The outer wall of the tube receptor has a polygonal handle grip pattern 196 on the first locking semi-groove of the tube receptor.

In the second tube housing 293 of the CPVC connecting pipe 303, the tube eyepiece, the tube boundary body, and the tube seat body are, the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body having an eyepiece hole and a seating hole sequentially penetrating the sidewall and communicating with each other, the outer wall of the tube eyepiece has a second locking semi-groove for receiving the one-side incision locking ring 285 on the eyepiece hole of the tube eyepiece .

The tube boundary body has a polygonal handle holding pattern 256 along the outer wall of the tube boundary near the tube eyepiece. In the coupled state of the first tube housing 213 and the second tube housing 293, the tube eyepiece is inserted into the tube receptor and in contact with the circular rubber ring 277 of the tube receptor, The 2 locking semi-groove faces the upper first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative opposite to the second tube housing 293, and the expansion tube 410 at the rubber pad ring 205 of the tube derivative. ) to have an expanded tube portion 402 under the rubber pad ring 205, and an expansion tube 410 on the inner wall of the tube derivative between the expansion end 403 and the expansion tube 402 of the expansion tube 410 ) is brought into contact.

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece. When the tube seat body surrounds the CPVC branch pipe (8), the tube boundary body is surrounded by a polygonal handle holding pattern (256) around the tube eyepiece and a polygonal handle holding pattern (256). inclined toward the tube seat. The eyepiece hole of the tube eyepiece and the tube boundary body has a smaller size than the seating hole of the tube boundary body and the tube seat body.

11A and 11B are cross-sectional views (cross-sectional and side views) illustrating a second modified example of the CPVC connecting pipe of FIG. 7 . In this case, since the first and second tube housings of FIGS. 11A and 11B have the same components as the first and second tube housings of FIGS. 7 to 9 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 7 to 9 .

11A and 11B, the CPVC connection pipe 306 is similar to the CPVC connection pipe 300 of FIGS. 7 to 9, and thus, for the description of the present invention, the CPVC connection pipe of FIGS. 7 to 9 Only differences from (300) are described. That is, in the first tube housing 216 of the CPVC connecting pipe 306, the inner wall of the tube derivative has a circular rubber ring 277 in front of the pad rubber ring 205 on the path of the guide hole of the tube derivative. It has a first circular ring groove for fitting.

The inner wall of the tube receptor has a second circular ring groove that fits the circular rubber ring 277 on the path of the receiving hole of the tube receptor near the pad rubber ring 205, and the pad rubber ring 205 is far from the tube receptor. It has a first locking semi-groove for accommodating the one-side cut-out locking ring 285 on the path of the receiving hole.

The outer wall of the tube receptor has a polygonal handle grip pattern 197 on the first locking semi-groove of the tube receptor. In the second tube housing 296 of the CPVC connecting pipe 306, the tube eyepiece, the tube boundary body, and the tube seat body are the inner wall of the tube eyepiece and the inner wall of the tube boundary body and the inner wall of the tube seat body. It has an eyepiece hole and a seating hole passing through the sidewall sequentially and communicating with each other.

The outer wall of the tube eyepiece has a second locking semi-groove for receiving a one-sided incision locking ring 285 on the eyepiece hole of the tube eyepiece. The tube boundary body has a polygonal handle holding pattern (257) along the outer wall of the tube boundary body near the tube eyepiece. In the coupled state of the first tube housing 216 and the second tube housing 296 , the tube eyepiece is inserted into the tube receptor to contact the circular rubber ring of the second circular ring groove in the tube receptor.

The second locking semi-groove of the tube eyepiece faces the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor. The tube derivative has an expansion tube end 403 of the expansion tube 410 at the end of the tube derivative on the opposite side of the second tube housing 296, and the expansion tube 410 at the rubber pad ring 205 of the tube derivative. has an expanded pipe part 402 under the rubber pad ring 205 by expanding it, and a circular rubber ring 277 of a first circular ring groove between the expansion end part 403 of the expansion pipe 410 and the expansion pipe part 402. is brought into contact with the expansion tube 410 .

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece. When the tube seat body surrounds the CPVC branch pipe (8), the tube boundary body is surrounded by a polygonal handle holding pattern (257) around the tube eyepiece and a polygonal handle holding pattern (257). Inclined toward the tube seat body, the eyepiece hole of the tube eyepiece and the tube boundary body has a smaller size than the seat hole of the tube boundary body and the tube seat body.

12A and 12B are cross-sectional views (cross-sectional and side views) showing a third modified example of the CPVC connecting pipe of FIG. 7 . In this case, since the first and second tube housings of FIGS. 12A and 12B have the same components as the first and second tube housings of FIGS. 7 to 9 , only the gist of the invention is simplified without explaining individual components. deal with it This is because the individual components can be associated through FIGS. 7 to 9 .

12A and 12B, since the CPVC connection pipe 309 is similar to the CPVC connection pipe 300 of FIGS. 7 to 9, for explanation of the present invention, the CPVC connection pipe of FIGS. 7 to 9 Only differences from (300) are described. That is, in the first tube housing 219 of the CPVC connecting pipe 309, the inner wall of the tube derivative has a circular rubber ring 277 in front of the pad rubber ring 205 on the path of the guide hole of the tube derivative. It has a first circular ring groove for fitting.

The inner wall of the tube receptor has a first locking semi-groove for receiving the one-side cut-out lock ring 285 on the path of the receiving hole of the tube receptor. The outer wall of the tube receptor has a polygonal handle grip pattern 198 on the first locking semi-groove of the tube receptor.

In the second tube housing 299 of the CPVC connecting pipe 309, the tube eyepiece, the tube boundary body, and the tube seat body are, the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body It has an eyepiece hole and a seating hole passing through the sidewall sequentially and communicating with each other. The outer wall of the tube eyepiece has a second locking semi-groove for receiving a one-side incision locking ring 285 on the eyepiece hole of the tube eyepiece, and circular rubber rings 277 on both sides of the second locking semi-groove of the tube eyepiece. ) having second and third circular ring grooves for receiving.

The tube boundary body has a polygonal handle holding pattern 258 along the outer wall of the tube boundary near the tube eyepiece. In the coupled state of the first tube housing and the second tube housing, the tube receptor and the tube eyepiece are inserted into the tube receptor, and the circular rubber rings 277 of the second and third circular ring grooves between the tube receptor and the tube eyepiece. , wherein the second locking semi-groove of the tube eyepiece faces the first locking semi-groove of the tube receptor just below the first locking semi-groove of the tube receptor.

The tube derivative has the expansion tube end 403 of the expansion tube 410 at the end of the tube derivative on the opposite side of the second tube housing 299, and expands the expansion tube with the rubber pad ring 205 of the tube derivative. It has an expansion pipe part 402 under the rubber pad ring 205, and the expansion pipe is attached to the circular rubber ring 277 of the first circular ring groove between the expansion end part 403 of the expansion pipe 410 and the expansion pipe part 402. (410) is brought into contact.

The tube eyepiece is in close contact with the expansion tube 410 to the inner wall of the tube eyepiece. When the tube seater surrounds the CPVC branch pipe (8), the tube boundary body is surrounded by a polygonal handle holding pattern (258) around the tube eyepiece and a polygonal handle holding pattern (258). Inclined toward the tube seat body, the eyepiece hole of the tube eyepiece and the tube boundary body has a smaller size than the seat hole of the tube boundary body and the tube seat body.

13 and 14 are schematic diagrams illustrating a method of use of the CPVC connecting pipe of FIG. 1 . In this case, Figs. 13 and 14 are explained with reference to Figs.

13 and 14 , the first tube housing 60 and the second tube housing 140 may be prepared. The first tube housing 60 and the second tube housing 140 have been fully described with reference to FIGS. 1 to 3 . Subsequently, the pad rubber ring 55 is fitted into the pad ring groove (18 in FIG. 2) of the first tube housing 60, and the first and second circular ring grooves (FIG. 2) of the second tube housing 140 The square rubber ring 125 may be fitted to the 74 and 76 of the.

In addition, the one-side incision locking ring 125 may be fitted to the inclined surface 83 of the second tube housing 140 . Subsequently, the one-side incision locking ring 125 and the second tube housing 140 may be inserted into the first tube housing 60 . Here, the one-side cut-out lock ring 125 may contact the inclined surface 33 in the receiving hole 36 of the first tube housing 60 to reduce the diameter.

While the second tube housing 140 is gradually inserted into the first tube housing 60 in the first direction D1 , the one-side incision lock ring 125 is formed on the inclined surface 33 of the tube receptor 45 . The second direction ( D2) can be pushed up.

After the second tube housing 140 is sufficiently inserted into the first tube housing 60, the one-side incision locking ring 125 is connected to the first locking semi-groove 39 of the tube receptor 45 and the tube eyepiece ( The second locking semi-groove 78 of 85 may bind the tube receptor 45 and the tube eyepiece 85 to each other. Here, the tube receptor 45 and the tube eyepiece 85 may rotate reciprocally with respect to each other along one side incision lock ring 125 .

The first tube housing 60 and the second tube housing 140 are combined to form a CPVC connection pipe 150 . Next, the expansion tube 410 is inserted into the first tube housing 60 , and the second tube housing 140 may be surrounded by a CPVC branch tube ( 4 in FIG. 1 ). Next, the expansion tube 410 may be expanded inside and outside the first tube housing 60 , and the second tube housing 140 may be bonded to the CPVC branch tube 4 through a glue adhesive.

In a state in which the CPVC branch pipe 4 is already fixed to a transverse pipe (not shown), the expansion pipe 410 is coupled to the sprinkler head 460 through a reducer 420, and then the reducer The 420 may be fixed to the ceiling 450 through the fixing brackets 430 and 440 . Here, the sprinkler head 460 protrudes from the ceiling 450 .

4; CPVC branch pipe, 60; 1st tube housing
140; second tube housing, 150; CPVC connecting pipe

Claims (25)

In the CPVC connection pipe located between the CPVC (Chlorinated Polyvinyl Chloride) branch pipe connected to the horizontal pipe in the building and the expansion pipe connected to the sprinkler head,
a first tube housing formed integrally with the tube derivative together with the tube derivative penetrating the expansion tube and comprising a tube receptor that surrounds the expansion tube and protrudes the expansion tube on the opposite side of the tube derivative; and
A tube eyepiece that is inserted into the tube receptor and penetrates the telescopic tube, and a tube boundary body that is integrally formed with the tube eyepiece and surrounds the end of the expandable tube, and is integrally formed with the tube boundary body, the tube and a second tube housing made of a tube seat that extends toward the opposite side of the eyepiece and exposes the telescopic tube to the CPVC branch tube,
The tube receptor and the tube eyepiece face obliquely in the tube receptor or the tube eyepiece along the longitudinal direction of the expansion tube in the coupled state of the first tube housing and the second tube housing, and the tube receptor and a one-sided incision locking ring that is constrained and moved in a predetermined area between the tube eyepiece, and is bound to each other through the one-side incision locking ring,
The tube receptor, in the coupled state of the first tube housing and the second tube housing, rotates relative to the tube eyepiece along the circumference of the one-side incision locking ring, CPVC connecting tube.
The method of claim 1,
The first tube housing and the second tube housing,
Inserting the telescopic tube into the tube derivative, the tube receptor, the tube eyepiece, and the tube boundary body,
The second tube housing,
Inserting the pipe seat body into the CPVC branch pipe or inserting the CPVC branch pipe into the pipe seat body,
The tube seat body,
A CPVC connecting pipe that is fixed to the CPVC branch pipe through a glue adhesive.
3. The method of claim 2,
The tubular derivative is
When looking at the appearance of the tube derivative,
It is spaced apart from the tube receptor and has a constant size smaller than the outer diameter of the tube receptor,
from a certain outer diameter of the tube derivative near the tube receptor towards the outer diameter of the tube receptor,
The tubular receptor is
When looking at the appearance of the tube receptor,
A CPVC connecting pipe having the same outer diameter throughout the tube receptor.
3. The method of claim 2,
The vascular derivative and the vascular receptor,
It sequentially passes through the inner wall of the tube derivative and the inner wall of the tube receptor and has a guide hole and a receiving hole communicating with each other,
The inner wall of the tube derivative,
A CPVC connecting pipe having a pad ring groove for fitting a pad rubber ring on the path of the guide hole of the pipe derivative.
5. The method of claim 4,
The inner wall of the tube receptor,
A CPVC connecting pipe having a first locking semi-groove for accommodating the one-side cut-out locking ring on the path of the receiving hole of the tube receptor.
5. The method of claim 4,
The inner wall of the tube receptor,
It has a circular ring groove for inserting a circular rubber ring near the pad rubber ring,
having a first locking semi-groove for accommodating the one-side incision locking ring on the path of the receiving hole of the tube receptor away from the pad rubber ring,
The outer wall of the tube receptor,
CPVC connecting tubing having a polygonal handle grip pattern on said first locking semi-groove of said tube receptor.
5. The method of claim 4,
The inner wall of the tube derivative,
and a first circular ring groove for fitting a circular rubber ring in front of the pad rubber ring on the path of the guide hole of the tube derivative,
The inner wall of the tube receptor,
and a second circular ring groove for fitting a circular rubber ring on the path of the receiving hole of the tube receptor near the pad rubber ring,
having a first locking semi-groove for accommodating said one-side cut-out locking ring on said path of said receiving hole of said tube receptor away from said pad rubber ring;
The outer wall of the tube receptor,
CPVC connecting tubing having a polygonal handle grip pattern on said first locking semi-groove of said tube receptor.
5. The method of claim 4,
The inner wall of the tube derivative,
and a first circular ring groove for fitting a circular rubber ring in front of the pad rubber ring on the path of the guide hole of the tube derivative,
The inner wall of the tube receptor,
and a first locking semi-groove for accommodating the one-side incision locking ring on the path of the receiving hole of the tube receptor,
The outer wall of the tube receptor,
CPVC connecting tubing having a polygonal handle grip pattern on said first locking semi-groove of said tube receptor.
9. The method according to any one of claims 5 to 8,
The induction hole of the tube derivative and the tube receptor,
having the same diameter in the tubular derivative and the tubular receptor,
The pad ring groove of the tube derivative,
When viewed from the guide hole of the tube derivative, it protrudes from the guide hole of the tube derivative toward the outer wall of the tube derivative,
The receiving hole of the tube receptor is,
When viewed with respect to the induction hole of the tube receptor, the CPVC connection pipe that gradually spreads from the induction hole of the tube receptor to expose the induction hole of the tube receptor to the second tube housing.
6. The method of claim 5,
The tube eyepiece and the tube boundary body and the tube seat body,
It sequentially passes through the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body and has an eyepiece hole and a seating hole communicating with each other,
The outer wall of the tube eyepiece,
and a second locking semi-groove for accommodating the one-side incision locking ring on the eyepiece hole of the tube eyepiece,
The tube boundary body,
A CPVC connecting tubing having a polygonal handle holding pattern along an outer wall of the tube boundary near the tube eyepiece.
11. The method of claim 10,
The inner wall of the tube eyepiece,
Having first and second square ring grooves for fitting a square rubber ring on the path of the eyepiece hole of the tube eyepiece,
The second locking semi-groove of the tube eyepiece comprises:
located in the region between the first and second square ring grooves of the tube eyepiece;
In the coupled state of the first tube housing and the second tube housing, directly below the first locking semi-groove of the tube receptor and facing the first locking semi-groove of the tube receptor.
12. The method of claim 11,
The tubular derivative is
At the end of the tube derivative on the opposite side of the second tube housing, the expansion tube end of the expansion tube is provided,
In the pad rubber ring of the tube derivative, the expansion tube is expanded to have an expansion part under the pad rubber ring,
Contacting the expansion pipe with the inner wall of the pipe derivative between the expansion end of the expansion tube and the expansion part,
The tube eyepiece,
A CPVC connection pipe for adhering the expansion and contraction tube to the inner wall of the tube eyepiece and the square rubber ring.
7. The method of claim 6,
The tube eyepiece and the tube boundary body and the tube seat body,
It sequentially passes through the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body and has an eyepiece hole and a seating hole communicating with each other,
The outer wall of the tube eyepiece,
and a second locking semi-groove for accommodating the one-side incision locking ring on the eyepiece hole of the tube eyepiece,
The tube boundary body,
A CPVC connecting tubing having a polygonal handle holding pattern along an outer wall of the tube boundary near the tube eyepiece.
14. The method of claim 13,
In the coupled state of the first tube housing and the second tube housing,
The tube eyepiece,
Inserted into the tube receptor and in contact with the circular rubber ring of the tube receptor,
The second locking semi-groove of the tube eyepiece comprises:
and facing the first locking semi-groove of the tube receiver just below the first locking semi-groove of the tube receiver.
15. The method of claim 14,
The tubular derivative is
Having an expansion end of the expansion tube at the end of the tube derivative on the opposite side of the second tube housing,
In the rubber pad ring of the tube derivative, the expansion tube is expanded to have an expansion part under the rubber pad ring,
Contacting the expansion pipe with the inner wall of the pipe derivative between the expansion end part of the expansion pipe and the expansion part of the expansion pipe,
The tube eyepiece,
A CPVC connection pipe for adhering the expansion and contraction tube to the inner wall of the tube eyepiece.
8. The method of claim 7,
The tube eyepiece and the tube boundary body and the tube seat body,
It sequentially passes through the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body and has an eyepiece hole and a seating hole communicating with each other,
The outer wall of the tube eyepiece,
and a second locking semi-groove for accommodating the one-side incision locking ring on the eyepiece hole of the tube eyepiece,
The tube boundary body,
A CPVC connecting tubing having a polygonal handle holding pattern along an outer wall of the tube boundary near the tube eyepiece.
17. The method of claim 16,
In the coupled state of the first tube housing and the second tube housing,
The tube eyepiece,
Inserted into the tube receptor and in contact with the circular rubber ring of the second circular ring groove in the tube receptor,
The second locking semi-groove of the tube eyepiece comprises:
and facing the first locking semi-groove of the tube receiver just below the first locking semi-groove of the tube receiver.
17. The method of claim 16,
The tubular derivative is
At the end of the tube derivative on the opposite side of the second tube housing, the expansion tube end of the expansion tube is provided,
In the rubber pad ring of the tube derivative, the expansion tube is expanded to have an expansion part under the rubber pad ring,
Contacting the expansion pipe with the circular rubber ring of the first circular ring groove between the expansion tube terminal part and the expansion pipe part of the expansion pipe,
The tube eyepiece,
A CPVC connection pipe for adhering the expansion and contraction tube to the inner wall of the tube eyepiece.
9. The method of claim 8,
The tube eyepiece and the tube boundary body and the tube seat body,
It sequentially passes through the inner wall of the tube eyepiece, the inner wall of the tube boundary body, and the inner wall of the tube seat body and has an eyepiece hole and a seating hole communicating with each other,
The outer wall of the tube eyepiece,
and a second locking semi-groove for accommodating the one-side incision locking ring on the eyepiece hole of the tube eyepiece,
having second and third circular ring grooves for receiving circular rubber rings on both sides of the second locking semi-groove of the tube eyepiece;
The tube boundary body,
A CPVC connecting tubing having a polygonal handle holding pattern along an outer wall of the tube boundary near the tube eyepiece.
20. The method of claim 19,
In the coupled state of the first tube housing and the second tube housing,
The tube receptor and the tube eyepiece,
It is inserted into the tube receptor and has the circular rubber ring of the second and third circular ring grooves between the tube receptor and the tube eyepiece,
The second locking semi-groove of the tube eyepiece comprises:
and facing the first locking semi-groove of the tube receiver just below the first locking semi-groove of the tube receiver.
20. The method of claim 19,
The tubular derivative is
At the end of the tube derivative on the opposite side of the second tube housing, the expansion tube end of the expansion tube is provided,
In the rubber pad ring of the tube derivative, the expansion tube is expanded to have an expansion part under the rubber pad ring,
Contacting the expansion pipe with the circular rubber ring of the first circular ring groove between the expansion tube terminal part and the expansion pipe part of the expansion pipe,
The tube eyepiece,
A CPVC connection pipe for adhering the expansion and contraction tube to the inner wall of the tube eyepiece.
20. The method of any one of claims 10 and 13 and 16 and 19,
The first locking semi-groove of the tube receptor and the second locking semi-groove of the tube eyepiece include:
In the coupled state of the first tube housing and the second tube housing,
A CPVC connection pipe for restricting the movement of the one-side incision locking ring by restraining the one-side incision locking ring between the tube receptor and the tube eyepiece.
20. The method of any one of claims 10 and 13 and 16 and 19,
When the tube seat is surrounded by the CPVC branch pipe,
The tube boundary body,
Surrounded by the polygonal handle holding pattern around the tube eyepiece and inclined toward the tube seat from the polygonal handle grip pattern,
The eyepiece hole of the tube eyepiece and the tube boundary body,
A CPVC connecting pipe having a larger size than the mounting hole of the pipe boundary body and the pipe seat body.
11. The method of claim 10,
When the pipe seat surrounds the CPVC branch pipe,
The tube boundary body,
Surrounded by the polygonal handle holding pattern between the tube eyepiece and the tube seat body,
The eyepiece hole of the tube eyepiece and the tube boundary body,
Having a size smaller than the seating hole of the tube seat body, CPVC connection pipe.
20. The method of any one of claims 13 and 16 and 19,
When the pipe seat surrounds the CPVC branch pipe,
The tube boundary body,
Surrounded by the polygonal handle holding pattern around the tube eyepiece and inclined toward the tube seat from the polygonal handle holding pattern,
The eyepiece hole of the tube eyepiece and the tube boundary body,
A CPVC connecting pipe having a smaller size than the mounting hole of the pipe boundary body and the pipe seat body.

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