KR20060052024A - Connecting branch pipe - Google Patents

Abstract

An object of this invention is to provide the connection branch pipe which can improve the reliability of construction and can reduce the effort of piping work.

The catching member 6 in which the two catching claws 4 and 5 which hang in the periphery of the opening part 3 of the sewage main building 2 is installed, and is fitted to the said catching member 6, and the sewage main building 2 ) And a connecting member (9) formed with a saddle member (7) to be mounted on the rod, and a connecting port (8) which is inserted into the saddle member (7) and to which an attachment pipe is connected. 4) is pivotally pivoted to the locking member 6 through the pivot pin 11, the locking claw 4 is rotated by the pivoting locking claw 4 of the sewage main (2) It is possible to pass through the opening (3), and by screwing the connecting member 9 to the locking member 6, the rotation of the locking claw 4 is prevented, so that the locking claw 4 is the sewage main pipe The connecting branch pipe 1 which cannot pass through the opening part 3 of (2) is provided.

Description

Connecting branch {CONNECTING BRANCH PIPE}

1 is a perspective view of a locking member of the first embodiment.

2 is an exploded side cross-sectional view of the connecting branch pipe of the first embodiment.

3 is an explanatory side cross-sectional view of the connecting branch pipe (the state where the catching claw is rotated) of the first embodiment.

4 is an explanatory side cross-sectional view of the connecting branch pipe (the state where the engaging claw is closed) of the first embodiment.

5 is an explanatory side cross-sectional view of the connecting branch pipe of the first embodiment.

Fig. 6 is a sectional front view for explaining the connecting branch of the first embodiment.

7 is an exploded side cross-sectional view of the connecting branch pipe of the second embodiment.

8 is an explanatory side cross-sectional view of a connecting member (a state in which a locking claw is rotated) of the second embodiment.

Fig. 9 is an explanatory plan sectional view of the connecting member (the state where the catching claw is rotated) of the second embodiment.

Fig. 10 is an explanatory side cross-sectional view of the connecting member (the state where the engaging claw is closed) of the second embodiment.

Fig. 11 is an explanatory side cross-sectional view of the connecting branch pipe of the second embodiment.

12 is a sectional front view for explaining the connection branch of the second embodiment.

Fig. 13 is an explanatory side cross-sectional view of the connecting branch pipe of the modification of the first embodiment.

14 is an explanatory sectional view of the connection branch pipe of the modification of the first embodiment.

15 is an explanatory side cross-sectional view of a connecting branch pipe according to a modification of the second embodiment.

<Description of Symbols for Major Parts of Drawings>

1: connection branch 2: main route (sewage main building)

3: opening 4: closing hook on one side

5: latching on the other side 6: locking member

7: Saddle member 8: Connection port (rubber ring receiving port)

9 connection member 11 pivot pin

The present invention relates to a connecting branch pipe for connecting a branch pipe line such as an attachment pipe to a main pipe line such as a sewage main pipe.

In general, when connecting the attachment pipe connected to the public drip tray of each home and the sewage main pipe, when piping from the sewage main pipe to the upstream side, a saddle-shaped branch pipe is attached to a predetermined position of the sewage main pipe to branch off the sewage main pipe, Piping work is performed to connect the attachment pipe to the branch pipe.

In the case where the branch pipe is attached to the sewage main pipe, an opening is formed at a predetermined position of the sewage main pipe by using a hole saw, and the saddle-shaped branch pipe is attached to the opening to form an adhesive or a putty-type bonding agent. The branch pipe was fixed to the sewage main pipe.

However, when using an adhesive agent or a putty type bonding agent, it was difficult to reduce the effort of piping work and to ensure the reliability of construction.

Therefore, in order to reduce the effort of the plumbing work and to ensure the reliability of the construction, a branch pipe joint or a branch joint seam which can mechanically fix the branch pipe to the sewage main pipe without using an adhesive or a putty-type bonding agent is used. It is proposed (refer patent document 1 and patent document 2).

In the conventional branch pipe joint, the first end pipe and the second end pipe are connected via a rubber ring, and a plurality of engaging portions are provided on the inner surface of the circumferential edge of the attachment hole at the distal end of the first end pipe. And attaching the birds in contact with the outer surface of the rim of the round tube to the outer circumference of the first end pipe, and mounting a rubber ring between the engaging portion of the first end pipe and the mounting portion of the birds, and rotating the second end pipe. By the operation, the engaging portion is pulled up against the original tube and the saddle, and the rubber ring is compressed and deformed to be pressed against the inner diameter of the attachment hole or the outer surface of the peripheral edge portion.

Moreover, in the conventional branch connection pipe joint, the close contact part which has the elastic ring which is larger than the diameter of the said branch hole is formed in the inner tube attached to the branch hole of a pipe | tube, and prevents falling into the said branch hole. On the other hand, the flange part which contacts the side edge of the insertion part was formed in the branch pipe connection pipe, the contact part was deformed, the said inner pipe was inserted into the branch hole from the insertion part, and the screw part of the branch pipe connection pipe and the screw part of the inner pipe were made. The inner tube is pulled up to bring the inner tube into close contact with the inner peripheral edge of the branch hole.

[Patent Document 1] Japanese Patent Application Laid-Open No. 4-194488 (Page 2-4, Fig. 1)

[Patent Document 2] Japanese Utility Model Application Publication No. Hei 7-55435 (Page 2-3, Fig. 1)

However, in the above-described conventional configuration, when the engaging portion is pulled up by the rotation operation of the second end pipe, the rubber ring is compressed and deformed to be pressed on the outer surface of the inner diameter portion or the peripheral portion of the attachment port, or the screw portion and the inner tube of the branch pipe connection tube are pressed. When screwing the threaded portion to pull up the inner tube and bringing the inner tube close to the inner circumferential edge of the branch hole, if excessive rotational force or screwing force is applied, the locking portion or the close portion may be deformed and leak or fixation failure may occur. There was a problem that it might occur.

Moreover, in the said conventional structure, when it forgets to hang the latch part of a 1st end pipe | tube or the flange part of a branch pipe connection pipe, or when the latch part or the latch part of the said flange part has a fault, there exists a possibility that a leak may arise. There was also.

The present invention, as a means for solving the above-mentioned conventional problems, a plurality of connecting edges (1) for connecting the branch pipe path to the main pipe path 2, the plurality of edges of the opening 3 of the main pipe path (2) A catching member 6 provided with catching claws 4, 5, a saddle member 7 that is fitted to the catching member 6 and is mounted on the main conduit 2, and the saddle member 7 ) Has a connecting member (9) having a connection port (8) for insertion and attachment of the branch pipe path, and one or both locking claws (4, 5) are connected to the locking member (6) through a pivot pin. Pivotally pivoted on, and by pivoting the pivoted locking claws 4, the locking claws 4 can pass through the opening 3 of the main pipe 2, and the connection member By screwing (9) to the catching member 6, rotation of the catching claw 4 is prevented and the catching claw 4 Is to provide a connecting branch pipe (1) that can not pass through the opening (3) of the main pipe passage (2).

When the connecting member 9 is screwed to the locking member 6, the upper part of the pivoted locking claw 4 is supported by the saddle member 7 and the connecting member 9. By this, it is preferable that rotation of the locking claw 4 is prevented.

Alternatively, when the connecting member 9 is screwed to the locking member 6, the outer peripheral surface of the upper part of the pivoted locking claw 4 comes into contact with the inner peripheral surface of the connecting member 9, whereby It is preferable that rotation of (4) is prevented.

In this case, a contact surface 25 is formed on an inner surface of the upper portion of the pivoted locking claw 4, and a contact surface 26 is formed on an outer surface of an upper portion of the locking member 6 on the side where the locking claw 4 is installed. Is formed, and when the connecting member 9 is screwed to the locking member 6, the contact surface 25 of the locking claw 4 and the contact surface 26 of the locking member 6 come into contact with each other. It is preferable that rotation to the upper inner side of the locking claw 4 is prevented.

In addition, it is preferable that the plurality of locking claws 4 and 5 are provided along the axial direction of the main pipe passage 2.

In addition, it is preferable that two locking claws 4 and 5 are provided.

Hereinafter, the present invention will be described in detail by Examples 1 and 2.

Example 1

This invention is demonstrated by the Example shown to FIG. 1 thru | or FIG.

In this embodiment, the case of the connection branch pipe 1 for connecting the attachment pipe (not shown) which is the branch pipe path connected to the public drip tray (not shown) of each home to the sewage main building 2 which is the main route is illustrated.

The connection branch pipe 1 includes a locking member 6 on which two locking claws 4 and 5 are mounted, which are attached to the circumferential edge of the opening 3 of the sewage main pipe 2, and an upper portion of the locking member 6. The saddle member 7 which is fitted to the outside and mounted on the upper surface of the sewage main pipe 2 and the rubber ring receiving port 8 which is inserted into the saddle member 7 and connected to the attachment pipe are connected to the upper portion. It has the connecting member 9 provided in the.

As shown in FIG. 1 and FIG. 2, the two locking claws 4 and 5 of the locking member 6 have an approximately L-shaped cross section, and the shape of the locking plate 10 which is extended out substantially horizontally is sewage. It is arched along the shape of the inner peripheral surface of the peripheral edge of the opening part 3 of the main building 2.

A pair of pivot pins 11 protrude from the upper side surface of one catching claw 4, and one catching claw 4 is rotatable to the catching member 6 via the pivot pin 11. Is pivoted. On the other hand, the locking claw 5 on the other side of the locking member 6 is integrally provided with the locking member 6. In the present embodiment, the two catching claws 4 and 5 are provided along the axial direction of the sewage main pipe 2.

In addition, a screw groove 12 is formed in the upper inner circumferential surface of the locking member 6 and the locking claws 4 and 5. In addition, a locking step portion 13 is formed on the locking member 6 and the upper outer circumferential surfaces of the locking claws 4 and 5, and the locking step portion 13 is formed around the opening 3 of the sewage main pipe 2. The locking member 6 is prevented from falling into the sewer main pipe 2 by being caught by an edge.

As shown in FIG. 2, the saddle board 14 extended substantially horizontally is provided in the lower part of the saddle member 7, The shape of the saddle board 14 along the shape of the upper surface of the sewer main pipe 2 is shown. It is arched. The first packing 15 is fitted in the inner circumference of the lower portion of the saddle member 7.

In addition, a contact step portion 16 is formed on the upper inner circumferential surface of the saddle member 7, and an annular locking claw 17 protrudes on the inner circumferential surface of the upper end of the saddle member 7.

As shown in FIG. 2, the insertion part 18 is provided in the lower part of the connection member 9, and the screw part 19 is provided in the outer peripheral surface of the insertion part 18. As shown in FIG. In addition, a contact portion 20 is provided above the insertion portion 18.

In addition, a coupling protrusion ring 21 is formed on the outer periphery of the central portion of the connecting member 9, and a second packing 22 is fitted to the portion below the coupling protrusion ring 21.

In addition, a rubber ring receiving opening 8 is formed in the upper portion of the connecting member 9, and a rubber ring 23 is fitted to the inner circumferential surface of the rubber ring receiving opening 8.

When piping from the sewage main pipe 2 to the upstream side using the said connection pipe 1, as shown in FIG. 3, the connection paper pipe 1 previously assembled by the manufacturing plant etc. is used.

And at the construction site, the insertion part 18 of the connection member 9 is first inserted into the saddle member 7 from above, and the contact portion 20 of the connection member 9 is brought into contact with the saddle member 7. The contact member 9 and the saddle member 7 are assembled by bringing the contact member 16 into contact with the annular engaging claw 17 of the saddle member 7 to the engagement protrusion ring 21 of the connection member 9. do.

Subsequently, the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6. At this time, the upper end of the locking member 6 is fitted by the outer peripheral surface of the insertion portion 18 of the connection member 9 and the inner peripheral surface of the saddle member 7, but the insertion portion 18 of the connection member 9 Since the screw is not attached to one of the locking claws 4, the locking claw 4 is in a rotatable state.

Then, the opening part 3 is formed in a predetermined position of the sewage main pipe 2 using tools (not shown), such as a hole saw.

Then, the other locking claw 5 of the locking member 6 is caught on the inner circumferential surface of the circumferential edge of the opening 3 of the sewage main pipe 2, and as shown by an arrow in FIG. The claw 4 is rotated inward with the pivot pin 11 as the center so that the one locking claw 4 can pass through the opening 3.

Next, as shown in FIG. 4, after passing the one opening claw 3 of the sewage main pipe 2, one locking claw 4 is centered around the pivot pin 11. It rotates outward and the one latch claw 4 is caught by the inner peripheral surface of the peripheral edge of the opening 3.

Thereafter, as shown by the arrow in FIG. 4, the connecting member 9 is rotated to hold the screw portion 19 of the insertion portion 18 of the connecting member 9 and the screw grooves 12 of the claws 4 and 5. Screw it to (see Fig. 5). In this case, the upper part of one locking claw 4 is also fitted by the outer circumferential surface of the insertion portion 18 of the connecting member 9 and the inner circumferential surface of the saddle member 7, so that the rotation of the one locking claw 4 is rotated. This stoppage is prevented, and the locking claw 4 cannot pass through the opening 3 of the sewer main pipe 2.

At this time, if the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed to the locking member 6 and the screw groove 12 of the locking claws 4 and 5, the locking member 6 The locking claws 4 and 5 of the hook) are pulled up relative to the connecting member 9 and the saddle member 7, and the upper surface and the saddle member 7 of the locking plate 10 of the locking claws 4 and 5 are The circumferential edge of the opening part 3 of the sewage main pipe 2 is fitted by the lower surface of the saddle board 14 of this, and the connection branch pipe 1 is fixed to the sewage main pipe 2 reliably.

In this case, since the first packing 15 is interposed between the inner circumferential lower surface of the saddle member 7 and the upper surface of the sewage main pipe 2, the saddle member 7 and the saddle member 7 are separated by the first packing 15. The sewage main building 2 is in a watertight state. In addition, since the second packing 22 is interposed between the inner circumferential surface of the saddle member 7 and the outer circumferential surface of the connecting member 9, the saddle member 7 and the connecting member are formed by the second packing 22. Between (9) is a watertight state (refer FIG. 5 and FIG. 6).

In this way, after attaching the connecting branch pipe 1 to the predetermined position of the sewage main pipe 2 and branching the sewage main pipe 2, the rubber ring receiving port 8 of the connecting member 9 of the connecting pipe 1 is connected. Piping work is completed by inserting and connecting the attachment pipe.

In the above connecting branch pipe 1, by attaching the connecting member 9 to the locking member 6, the two catching claws 4 and 5 are securely caught by the edges around the opening 3 of the sewage main pipe 2. Therefore, it is possible to prevent the occurrence of jams or leaks. In addition, in the connection branch pipe 1, it is impossible to screw the connecting member 9 to the fastening member 6 unless the one of the locking claws 4 is engaged, so that the locking claws 4, The forgetting of 5) can be surely prevented, thus improving the reliability of construction. In addition, since the construction work is simple and easy in the connecting branch pipe 1, the effort of plumbing can be reduced.

In addition, when the connecting member 9 and the saddle member 7 are assembled, the annular catching claw 17 of the saddle member 7 is held in engagement with the locking protruding ring 21 of the connecting member 9. In the assembled state, the connecting member 9 and the saddle member 7 are not separated. When the connecting member 9 and the locking member 6 are tightened, the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6. Since it is attached and fixed, the connection member 9 and the locking member 6 are not separated from each other in an assembled state.

In addition, since one locking claw 4 is pivotably and integrally pivoted to the locking member 6 via the pivot pin 11, the locking claw 4 can be smoothly rotated. In addition, since the one stop claw 4 does not fall at the time of work, a construction work can be performed smoothly and workability of a construction improves.

In addition, when the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6, the upper portion of one locking claw 4 is connected to the connecting member 9. Since the rotation of one of the catching claws 4 can be prevented and the deformation can be reduced by fitting the outer peripheral surface of the insertion portion 18 and the inner peripheral surface of the saddle member 7 to the pivot pin 11. The load applied can be reduced, and there is little risk that the pivot pin 22 is bent.

In addition, for example, even when the pitting pin 11 is bent, the connecting member 9 is screwed to the locking member 6 and fixed, and one locking claw 4 is the saddle member 7. Since it is fitted to the outer circumferential surface of the c) and the inner circumferential surface of the connecting member 9, the engagement of the one catching claw 4 is not released, and the catching claw 4 does not fall inward.

In addition, since the two locking claws 4 and 5 are provided along the axial direction of the sewer main pipe 2, the locking claws 4 at the highest positions of the circumferential edges of the opening 3 of the sewer main pipe 2 are provided. , 5) can hang.

In addition, since the two locking claws 4 and 5 are provided along the axial direction of the sewer main pipe 2, even when the connecting branch pipe 1 is mounted in an inclined state with respect to the axis of the sewer main pipe 2, The locking claws 4 and 5 are not located below the bottom of the tube of the attachment pipe.

Example 2

7 to 12 show another embodiment.

The connection branch pipe 1 of the present embodiment includes a locking member 6 provided with two locking claws 4 and 5 that are secured to the circumferential edge of the opening 3 of the sewage main pipe 2, and the locking member 6 is provided. The rubber ring receiving port which is fitted to the outside of the upper portion of the saddle main body (2) and the saddle member (7), which is inserted into the saddle member (7) and connected to the attachment pipe is connected to the outside ( 8) has a connecting member 9 formed on top.

As shown in FIG. 7, the two locking claws 4 and 5 of the locking member 6 have a substantially L-shaped cross section, and the shape of the locking plate 10 which is extended out substantially horizontally is the sewage main pipe 2. It has an arch shape along the shape of the inner circumferential surface of the circumferential edge of the opening (3).

A pair of pivot pins 11 protrude from the central side surface of one catching claw 4, and one catching claw 4 is pivotally pivotable to the catching member 6 via the pivot pin 11. It is pivoted. On the other hand, the locking claw 5 on the other side of the locking member 6 is integrally provided with the locking member 6. In the present embodiment, the two catching claws 4 and 5 are provided along the axial direction of the sewage main pipe 2.

In addition, screw grooves 12 are formed in the upper outer circumferential surfaces of the locking member 6 and the locking claws 4 and 5. In addition, as shown in FIG. 12, a locking step portion 13 is formed on the lower outer circumferential surface of the locking member 6, and the locking step portion 13 is formed at the circumferential edge of the opening 3 of the sewage main pipe 2. The locking member 6 is prevented from falling into the sewer main pipe 2 by being caught.

As shown in FIG. 7, the saddle board 14 extended substantially horizontally is provided in the lower part of the saddle member 7, The shape of the said saddle board 14 is the shape of the upper surface of the sewage main pipe 2. As shown in FIG. It is arched along. In addition, the first packing 15 is fitted in the inner circumference of the lower portion of the saddle member 7.

In addition, a contact step portion 16 is formed on the inner circumferential surface of the center portion of the saddle member 7, and an annular engagement claw 17 protrudes from the inner circumferential surface of the upper end of the saddle member 7.

As shown in FIG. 7, the insertion part 18 is provided in the lower part of the connection member 9, and the screw part 19 is provided in the inner peripheral surface of the insertion part 18. As shown in FIG. The lower end of the insertion portion is a contact portion 20.

Moreover, the engaging protrusion ring 21 protrudes in the outer periphery of the insertion part 18 of the connection member 9, and the 2nd packing 22 is fitted in the part below the engaging protrusion ring 21. .

In addition, a rubber ring receiving opening 8 is formed in the upper portion of the connecting member 9, and a rubber ring 23 is fitted to the inner circumferential surface of the rubber ring receiving opening 8.

When piping from the sewer main pipe 2 to the upstream side using the connection branch pipe 1 described above, as shown in FIG. 8, first, an opening (eg, a hole saw or the like) is used at a predetermined position of the sewer main pipe 2. 3) form.

Then, while the other locking claw 5 of the locking member 6 is caught by the inner peripheral surface of the peripheral edge of the opening 3 of the sewage main pipe 2, as shown by an arrow in FIG. The claw 4 is rotated inward with the pivot pin 11 as the center so that one locking claw 4 can pass through the opening 3 (see Figs. 8 and 9).

Subsequently, as shown in FIG. 10, after one locking claw 4 is passed through the opening 3 of the sewage main pipe 2, the locking claw 4 is centered on the pivot pin 11. It rotates outward so that the said latching latch 4 may be caught by the inner peripheral surface of the peripheral edge of the said opening part 3.

Then, the insertion portion 18 of the connecting member 9 is inserted into the saddle member 7 from above, and the contact portion 20 of the connecting member 9 is inserted into the contact stepped portion 16 of the saddle member 7. In addition to contacting, the connecting member 9 and the saddle member 7 are assembled by engaging the annular engaging claw 17 of the saddle member 7 with the engaging protruding ring 21 of the connecting member 9.

Thereafter, as shown by the arrow in FIG. 10, the connecting member 9 is rotated so that the threaded portion 19 of the insertion portion 18 of the connecting member 9 holds the screw groove 12 of the locking member 6. Screw) (see Fig. 11). Then, since the outer circumferential surface of the upper portion of one of the catching claws 43 contacts the inner circumferential surface of the insertion portion 18 of the connecting member 9, the rotation of the one catching claw 4 is prevented and the one of the catches is locked. The claw 4 cannot pass through the opening 3 of the sewage main pipe 2.

At this time, if the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed to the locking member 6 and the screw groove 12 of the locking claws 4 and 5, the locking member 6 The locking claws 4 and 5 of the hook) are pulled up relative to the connecting member 9 and the saddle member 7, and the upper surface and the saddle member 7 of the locking plate 10 of the locking claws 4 and 5 are The circumferential edge of the opening part 3 of the sewage main pipe 2 is fitted by the lower surface of the saddle board 14 of this, and the connection branch pipe 1 is fixed to the sewage main pipe 2 reliably.

In this case, since the first packing 15 is interposed between the inner circumferential lower surface of the saddle member 7 and the upper surface of the sewage main pipe 2, the saddle member 7 and the sewage are separated by the first packing 15. The space between the main tubes 2 is in a watertight state. In addition, since the second packing 22 is interposed between the inner circumferential surface of the saddle member 7 and the outer circumferential surface of the connecting member 9, the saddle member 7 and the connecting member are formed by the second packing 22. Between (9) is a watertight state (refer FIG. 11 and FIG. 12).

In this way, after attaching the connecting branch pipe 1 to the predetermined position of the sewage main pipe 2 and branching the sewage main pipe 2, the rubber ring receiving port 8 of the connecting member 9 of the connecting pipe 1 is connected. The attachment pipe is inserted and connected to complete the piping work.

Also in the connection branch pipe 1, the same effect as that of the first embodiment can be achieved.

That is, in the connecting branch pipe 1, the connecting members 9 are screwed to the locking member 6 so that the two locking claws 4 and 5 are secured at the edges of the opening 3 of the sewage main pipe 2. Since it is caught, it is possible to prevent the occurrence of jams or leaks. In addition, in the connection branch pipe 1, the connection member 9 cannot be screwed to the locking member 6 unless one locking claw 4 is in a locked state, so that the locking claws 4 and 5 are locked. It can be reliably prevented from forgetting that, and thus the certainty of construction can be improved. In addition, since the construction work is simple and easy in the connecting branch pipe 1, the effort of plumbing can be reduced.

When the connecting member 9 and the saddle member 7 are assembled, the annular engaging claw 17 of the saddle member 7 is held in engagement with the engaging protruding ring 21 of the connecting member 9. In the assembled state, the connection member 9 and the saddle member 7 are not separated. When the connecting member 9 and the locking member 6 are assembled, the threaded portion 19 of the inserting portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6. Since it is attached and fixed, the connection member 9 and the locking member 6 are not separated in the assembled state.

In addition, since one locking claw 4 is pivotable and integrally pivoted to the locking member 6 through the pivot pin 11, the locking claw 4 can be smoothly rotated. In addition, since the said one stop claw 4 does not fall at the time of a work, a construction work can be performed smoothly and the workability of a construction improves.

Then, when the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6, the upper portion of one locking claw 4 is connected to the connecting member 9. By contacting the inner circumferential surface of the insertion portion 18 of the c), it is possible to prevent rotation to the outside of the upper portion of the one locking claw 4, so that the load acting on the pivot pin 11 can be reduced. There is little risk of bending the pivot pin 11.

In addition, in this embodiment, the contact surface 25 is formed in the inner surface of the both ends of the upper part of one locking claw 4, and the both ends of the upper part of the locking member 6 of the side to which the one locking claw 4 is attached. The contact surface 26 is formed in the outer surface (refer FIG. 8 and FIG. 9). Therefore, when the threaded portion 19 of the insertion portion 18 of the connecting member 9 is screwed into the screw groove 12 of the locking member 6, it is engaged with the contact portion 25 of one locking claw 4. When the contact surface 26 of the member 6 contacts, rotation to the inside of the upper part of the said one locking claw 4 is prevented.

In addition, since the two locking claws 4 and 5 are provided along the axial direction of the sewer main pipe 2, the locking claws 4 and 5 are located at the highest position of the circumferential edge of the opening 3 of the sewage main pipe 2. Can take).

In addition, since the two catching claws 4 and 5 are provided along the axial direction of the sewage main pipe 2, the connecting branch pipe 1 is mounted in an inclined state with respect to the axis of the sewage main pipe 2. Even if the catching claws 4 and 5 are not located below the bottom of the tube of the attachment pipe.

As mentioned above, although embodiment of this invention was described by the Example, the scope of the present invention is not limited to these, It is possible to change / modify according to the objective within the range as described in a claim.

For example, in Example 1 shown in FIGS. 1-6, although the rubber ring receiving port 8 was demonstrated as being provided in the upper part of the connection member 9 as a connection port to which an attachment pipe is connected, it was other than the said embodiment. 13 and 14, a rubber ring receiving port 8 capable of being shaken may be provided on the upper portion of the connecting member 9 as a connecting port to which the attachment pipe is connected.

In addition, in Example 2 shown to FIGS. 7-12, although the rubber ring receiving port 8 was demonstrated as being provided in the upper part of the connection member 9 as a connection port to which an attachment pipe is connected, FIG. As shown in Fig. 15, a rubber flexible receiving port 8 may be provided on the upper portion of the connecting member 9 as a connecting port to which the attachment pipe is connected.

In addition, in addition to the above embodiment, an adhesive receiving port (not shown) may be provided above the connecting member 9 as a connecting port to which the attachment pipe is connected.

And as shown in FIG. 15, the handle 24 which becomes a handle at the time of rotating the connection member 9 may be provided in the outer peripheral surface of the connection member 9. As shown in FIG. Instead of providing the handle 24, a projection (not shown) or a hole (not shown) may be formed to serve as a handle when the connecting member 9 is rotated.

In addition, in the above embodiment, one locking claw 4 is described as being pivotably pivoted to the locking member 6 via the pivot pin 11, but in addition to the above embodiment, both locking claws 4 , 5) may be pivotably pivoted to the locking member 6 via the pivot pin 11.

In addition, in the above-described embodiment, the connection branch pipe 1 is used when the attachment pipe, which is the branch pipe path, is connected to the sewage main pipe 2, which is the main pipe line. The connecting branch pipe 1 may be used when connecting the branch pipe (not shown) of the drip tray which is a branch pipe path to omission of illustration.

INDUSTRIAL APPLICABILITY The present invention can be used industrially as a connecting pipe which can improve the reliability of construction and can reduce the effort of plumbing.

In the connecting branch pipe (1) of the present invention, the locking claw (4) pivoted on the locking member (6) is rotated, and the locking claw (4) passes through the opening (3) of the main pipe passage (2). After engaging the catching claws 4, 5 at the edges of the opening 3 of the furnace 2, the connecting member 9 is screwed to the catching member 6 so that The rotation is prevented and the locking claw 4 cannot pass through the opening 3 of the main pipe 2.

Therefore, when the connecting member 9 is attached to the locking member 6, the locking claws 4 and 5 are securely caught at the circumferential edge of the opening 3, so that a locking failure or leakage occurs. Can be prevented, and the reliability of the construction can be improved, and the construction work can be easily and easily saved, thereby reducing the effort of the piping work.

Claims (6)

As connecting pipe for connecting branch pipe to main pipe, The catching member is provided with a plurality of catching claws which are caught at the edges of the opening of the main conduit, the saddle member attached to the catching member and mounted on the main conduit, and the attaching and attaching to the saddle member. Has a connecting member formed with a connecting port, One or both of the engaging claws are pivotally pivotally pivotally connected to the engaging member through a pivot pin, and by rotating the pivoted engaging claws, the engaging claws can pass through the opening of the main passage. And screwing a connecting member to the locking member to prevent rotation of the locking claw so that the locking claw cannot pass through the opening of the main pipe. 2. The rotation of the locking claw according to claim 1, wherein when the connecting member is screwed to the locking member, an upper portion of the pivoted locking claw is held by the saddle member and the connecting member to prevent rotation of the locking claw. Connection branch characterized in that the. The method of claim 1, wherein when the connecting member is screwed to the locking member, the outer peripheral surface of the upper portion of the pivoted locking claw in contact with the inner peripheral surface of the connecting member, the rotation of the locking claw is prevented Connection branch to do. The method of claim 3, wherein the contact surface is formed on the inner surface of the upper portion of the engaging locking claw, the contact surface is formed on the outer surface of the upper portion of the locking member on the side where the locking claw is installed, the connecting member And the contact surface of the engaging claw contacts the contact surface of the engaging member when the screw is attached to the connecting claw so that rotation to the upper inner side of the engaging claw is prevented. 5. The connecting branch pipe according to any one of claims 1 to 4, wherein the plurality of locking clips are provided along an axial direction of the main pipe line. The connecting branch pipe according to any one of claims 1 to 5, wherein two hooks are provided.

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