JPH08223753A - Tube connecting apparatus with drain - Google Patents

Abstract

PURPOSE: To install, easily and in a short time, a tube connecting apparatus, with a drain, which is installed in a through part in an underground outer wall, through which a wire or the like is passed and which functions as a connecting box, with a drain, to drain water inside a conduit tube. CONSTITUTION: A tube connecting apparatus with a drain is composed of a cylindrical central-part body unit 8 which comprises at least one drain hole in the outer circumferential part, with a leading-in unit 9 which is connected to one end of the central-part body unit 8 so as to be freely detachable and the tip of which is connected to a flanged conduit tube 6 which is buried in an underground outer wall 5 on the side of a building 4 and of an outgoing unit 10 which is fitted and connected to the other end of the central-part body unit 8 so as to be freely detachable and the tip of which is connected, via a conduit-tube connecting metal fitting 21, to a leading-in conduit pipe 7 installed at the inside of the building 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in a portion where a lead-in electric wire or the like wired through an underground lead-in pipe embedded in the ground is pulled into the building through a penetrating portion of the underground outer wall on the building side, The present invention relates to a water connection pipe connection device that functions as a water connection box for draining water in a conduit while conducting electric wires.

[0002]

2. Description of the Related Art A junction box with drainage is installed between a flanged conduit tube (or waterproof cast iron tube) buried in a penetrating outer wall of a building side and a lead-in conduit tube installed inside a building. In addition to conducting electric wires and draining water inside the conduit, conventional junction boxes with water drainage are generally constructed by providing support metal fittings on a steel plate box with drainage holes. . For this junction box with water drainage, the diameter, number and mounting pitch of the flanged conduit that is buried in the penetration part of the underground outer wall, and the radius of curvature of the wire housed inside the flanged conduit are examined. It is manufactured by bending a steel plate.

[0003]

However, if the steel plate is bent and processed each time like the conventional junction box with drainage, not only a lot of time is required for manufacturing and dimension adjustment, but also There are many problems such as difficulty in mounting work after manufacturing, and because it is a bent product of steel plate, it is easily corroded by water entering the bent part and there is a problem in durability. .

[0004]

In order to solve the above-mentioned problems, a pipe connection device with drainage according to the present invention is provided with a cylindrical central portion main unit having at least one drainage hole in an outer peripheral portion. A retractable unit that is detachably fitted and connected to one end of the central body unit, and its tip is connected to a flanged conduit that is embedded in the underground wall on the building side, and removable to the other end of the central body unit. It is characterized in that it is freely fitted and connected, and its leading end is composed of a lead-in conduit installed on the interior side of the building and a drawer unit connected via a conduit fitting.

[0005]

Since the pipe connection device with drainage according to the present invention is constructed as described above, it is selected according to the size of the flanged conduit tube and the lead-in cable embedded in the penetration portion of the underground outer wall. With the central body unit, retraction unit and drawer unit installed, and with the lead-in conduit installed at a predetermined position inside the building, first connect the lead-in unit to the flanged conduit, then attach the center unit unit to the lead-in unit. After connecting and temporarily fixing, connect the draw-out unit to the lead-in conduit via the conduit fitting, and secure a work space between the main body unit and the draw-out unit to install the lead-in wire. Then remove the temporary fixing of the central body unit and slide it to the drawer unit side to connect it to the drawer unit, then rotate the central body unit to position the drain hole. After a while fixing the central portion main unit and the drawing unit and drawer unit,
By connecting the drainage pipe to the drainage hole, the pipe connection device with drainage can be installed.

[0006]

Embodiments of the present invention will be described below with reference to FIGS. 1 and 6. 1 is a vertical cross-sectional view of a pipe connection device with water drain according to an embodiment of the present invention, FIG. 2 is an enlarged view of an example of portion A in FIG. 1, and FIG. 3 is an enlarged view of another example of portion A in FIG. ,
FIG. 4 is an enlarged view of the B portion in FIG. 1, FIG. 5 is an enlarged view of the C portion in FIG. 1, and FIG. 6 is an external view showing the installation state of the water discharge pipe connecting device according to the embodiment of the present invention.

As shown in FIG. 6, the pipe connection device 1 with drainage is constructed so that a lead-in electric wire or the like that is routed through the underground lead-in pipe 3 embedded in the underground 2 can be pulled into the inside of the building 4 in order to lead it in. Side conduit tube 6 embedded in the penetrating part of the underground outer wall 5
(Or waterproof cast iron pipe) and a lead-in electric conduit 7 installed inside the building 4 to connect electric wires and drain water in the electric conduits 3 and 6 It functions as a box, and is composed of three units, as shown in FIG. 1, a central body unit 8, a retraction unit 9 and a withdrawal unit 10.

The central body unit 8 is composed of a cylindrical body having a length of L1 and a diameter of M1, and has at least one drainage hole 11 in the outer peripheral portion and both end portions as shown in FIG. The threaded portion 12 as shown or the fitting portion provided with the holding screw 13 as shown in FIG. 3 is formed. The drain hole 11 is usually provided with a stopper 14 as shown in FIG. 4. When the drainage pipe 16 is connected by installing the drainage pipe connecting device 1, the stopper 14 is removed. As shown in FIG. 5, the drainage pipe connection joint 15 is mounted so that the drainage pipe 16 can be connected.

The retracting unit 9 has a length L2, a diameter on one end side connected to the flanged conduit 6 is M2, and a diameter on the other end side fitted and connected to the central body unit 8 is M3. It has a funnel shape formed by forming an inclined surface 17 that is enlarged and inclined from one end side connected to the attached electric conduit tube 6 toward the central body unit 8 side at the other end, and is connected to the flanged electric conduit tube 6. A threaded portion 18 screwed into the flanged conduit 6 is screwed into the outer periphery on one end side, and a screw threaded portion 12 is screwed into the outer periphery on the other end side connected to the central body unit 8. Part 1
9 are formed respectively.

The drawer unit 10 has a length of L3, a diameter of one end side connected to the lead-in conduit 7 is M4, and a diameter of the other end side fitted and connected to the central body unit 8 is M5.
It has a funnel shape formed by forming an inclined surface 20 that is enlarged and inclined from one end side connected to the lead-in conduit tube 7 toward the central body unit 8 side at the other end, and the conduit tube is connected to the lead-in conduit tube 7 A threaded portion 22 screwed into the lead-in conduit fitting 21 on the outer periphery on one end side connected via the fitting 21.
However, a threaded portion 23 to be screwed into the threaded portion 12 is formed on the outer periphery on the other end side connected to the central body unit 8.

The central body unit 8, the pull-in unit 9 and the pull-out unit 10 are made of the same material as that of a commercially available conduit tube, and the diameters M2 and M4 on one end side of the pull-in unit 9 and the pull-out unit 10 are commercially available. The dimensions are set so as to be compatible with the electric wire tube, and it is configured to be easily connected by screwing or inserting. In addition, the retracting unit 9 and the withdrawing unit 10
It is preferable that the slopes 17 and 20 are as large as possible from the drainage surface, but it is also possible to have a shape with no slope. Furthermore, it is possible to integrate the pull-in unit 9 and the central body unit 8 or the drawer unit 10 and the central body unit 8.

Next, the installation work of the pipe connection device with drainage 1 according to the above embodiment will be described with reference to FIG. The underground lead-in pipe 3 is a bridging conduit tube 6 embedded in the penetrating portion of the underground outer wall 5.
And the lead-in conduit 7 is connected to
In a state of being installed at a predetermined position through the first, first, the threaded portion 18 on one end side of the retracting unit 9 constituting the pipe connection device with drainage 1 is screwed into the flanged electric wire pipe 6 to be connected, and then the central portion The threaded portion 12 at one end of the main body unit 8 or the fitting portion provided with the holding screw 13 is screwed or inserted into the threaded portion 19 of the retracting unit 9 and temporarily fixed. Further, if necessary, the central body unit 8 is slid toward the pull-in unit 9 side beyond the screw-in portion or the insertion portion to temporarily fix it. If the central body unit 8 is long, the central body unit 8 may be replaced by the upper skeleton 2 if necessary.
6 can be temporarily supported by means of a support fitting 25.

Next, the drawing-out unit 10 is connected to the drawing-in conduit 7 on the side of the building 4 via a conduit fitting 21.
The lead-in electric wire is passed through by securing a space for passing the electric wire between the drawer unit 10 and the temporarily fixed central body unit 8. After passing through the lead-in wire, the temporary fixing of the central body unit 8 is removed, and the central body unit 8 is slid toward the drawer unit 10 side while the threaded portion 12 or the cap screw 13 at the end portion is provided. Is screwed in or inserted into the threaded portion 23 of the drawer unit 10 for connection. At this time, the central body unit 8 is rotated so that the position of the water drain hole 11 is oriented in the optimum direction, and then the central body unit 8, the pull-in unit 9 and the pull-out unit 10 are fixed.

Thereafter, by removing the stopper 14 provided in the drainage hole 11, attaching the drainage pipe connection joint 15 and connecting the drainage pipe 16, the drainage pipe 16 can be piped. As a result, the water generated inside the flanged conduit 6 and the retracted conduit 7 is collected in the central body unit 8 using the inclined surfaces 17 and 20 of the drawing unit 9 and the drawing unit 10, and is drained from the water drain hole 11. It becomes possible to quickly drain the water through the pipe 16.

However, according to the above-described embodiment, the pipe connection device 1 with drainage that is suitable for the size of the conduit tube 6 with a collar or the lead-in cable embedded in the penetration portion of the underground outer wall is selected and attached with the collar. By installing between the conduit tube 6 and the lead-in conduit tube 7 as described above, it is possible to install the drainage-attached pipe connection device 1 that functions as a connection box with drainage. It is no longer necessary to manufacture a connection box with water drainage, and the installation time of the pipe connection device with water drainage 1 can be greatly shortened and the installation work can be performed easily.

Further, since the water drain hole 11 provided in the central body unit 8 of the pipe connection device with water drain 1 can be turned in the optimum direction by rotating the central body unit 8.
The drainage pipe 16 can be easily piped, and the inclined surfaces 17 and 20 are provided on the pull-in unit 9 and the pull-out unit 10. Therefore, water generated inside the conduit can be promptly transferred to the central body unit 8. Can be collected and drained. Further, since the central body unit 8, the pull-in unit 9 and the pull-out unit 10 are made of the same material as the conduit tube, the durability against corrosion can be significantly improved as compared with the bent product of the steel plate.

[0017]

As described above, according to the drainage pipe connecting device of the present invention, the drainage pipe having a size suitable for the size of the flanged conduit or the lead-in wire buried in the outer wall of the ground is provided. It suffices to select and install a pipe connection device, and it is not necessary to manufacture and install it by adjusting the dimensions each time, and it becomes possible to install the water connection pipe connection device easily and in a short time. The durability against corrosion can be significantly improved as compared with the conventional bent product made of a steel plate.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a pipe connection device with water drain according to an embodiment of the present invention.

FIG. 2 is an enlarged view of an example of a portion A in FIG.

FIG. 3 is an enlarged view of another example of a portion A in FIG.

FIG. 4 is an enlarged view of part B in FIG.

5 is an enlarged view of a C portion in FIG.

FIG. 6 is an external view showing an installed state of the pipe connection device with water drain according to the embodiment of the present invention.

[Explanation of symbols]

 1 Pipe connecting device with water drainage 4 Building 5 Underground wall 6 Conduit conduit 7 Retracting conduit 8 Central unit main unit 9 Retracting unit 10 Drawout unit 11 Draining hole 15 Drainage pipe connection joint 16 Drainage pipe 17 Sloping surface 20 Slope Surface 21 conduit fitting

Claims (3)

[Claims] 1. A cylindrical central body unit having at least one drainage hole on the outer periphery thereof, and a detachable fitting connection to one end of the central body unit, the tip of which is the underground outer wall on the building side. And a lead-in conduit which is detachably fitted and connected to the other end of the central body unit and whose tip is installed on the inside of the building. A pipe connection device with drainage, comprising a drawer unit connected via a water outlet. 2. The pull-in unit and the pull-out unit are each formed with an inclined surface which is enlarged and inclined from the tip end side toward the central portion main body unit side at the other end. Pipe connection device with drainage. 3. The drainage hole is provided with a detachable stopper plug, and the drainage pipe can be connected via a drainage pipe connection joint by removing the stopper plug. Pipe connection device with drainage.