JP3929597B2 - Connecting device for temporary drain hose for roof drain - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting device for a temporary drainage hose that is used until a gutter pipe is attached to a roof drain embedded in an open-air floor such as a veranda or a balcony.
[0002]
[Prior art]
Generally, rainwater drainage means on the open-air floors such as verandas and balconies formed on each floor of a building are constructed by burying a roof drain in the open-air floor part of each floor and attaching a vertical vertical pipe to each roof drain. It is connected in series so that rainwater can be guided and drained into the sewer.
[0003]
In such a drainage means, the dredging pipes communicating with the respective roof drains are attached after the construction of all the roof drains on each floor, so that if there is rain before the dredging pipes are attached, they will flow down from the respective roof drains. Rainwater will flood the downstairs outdoor floor.
[0004]
Therefore, conventionally, as shown in FIG. 6, after the roof drain b is buried in the open-air floor portion a, the temporary drain hose d is externally fitted to the drain pipe portion c of the roof drain b, and the temporary drain hose d is attached. The temporary drainage hose d is used to drain rainwater to the outside until it is tightened and fixed with an appropriate wire e such as a string or wire, and the soot pipe is attached.
[0005]
[Problems to be solved by the invention]
However, the conventional configuration as described above has a problem that it takes time and effort to attach and detach the temporary drainage hose d, and the workability is poor.
[0006]
The present invention has been made in view of the conventional situation and aims to provide a connecting device for a roof drain temporary drain hose that can be easily attached and detached. is there.
[0007]
[Means for Solving the Problems]
The present invention comprises a tray part and a drain pipe part coupled to the saucer part, for attaching a temporary drain hose detachably to the drain pipe part of a roof drain embedded in an open-air floor part. An annular packing tightly fitted to a fitted peripheral surface of the drainage pipe part is fitted to an inflow side end part of a joint pipe fitted or fitted into the drainage pipe part, while the joint An outflow side end portion of the pipe is used as a fitting end to which the temporary drainage hose is fitted, and a wavy uneven surface along the axial direction of the fitting pipe is formed on the outer peripheral surface of the fitting pipe. It is the connection apparatus of the temporary drainage hose for roof drains characterized by these.
[0008]
In this configuration, by fitting the inflow side end portion of the joint pipe to the drain pipe portion of the roof drain, the annular packing fitted to the inflow side end portion is drained through its elastic deformation. The fitting pipe is held by being closely fitted to the fitted peripheral surface of the portion. Here, since the temporary drainage hose externally fitted to the fitting end of the outflow side end of the joint pipe can be attached to the fitting end in advance, the joint pipe is drained from the roof drain as described above. The temporary drainage hose can be easily attached to the drainage pipe part of the roof drain via the joint pipe simply by fitting to the pipe part. In this mounted state, the temporary drainage hose can be easily removed together with the joint pipe by pulling out the inflow side end of the joint pipe from the drain pipe section of the roof drain.
[0009]
Further, in the above configuration, a configuration in which the fitting end of the joint pipe is formed in a tapered shape that gradually decreases in diameter as it reaches the outflow side can be proposed as a preferred embodiment. Thereby, it becomes possible to attach temporary drainage hoses with different diameters to the fitting end.
[0010]
Furthermore, in the said structure, the wavy uneven surface along the axial direction of a joint pipe is formed in the outer peripheral surface of the fitting end of a joint pipe . If it does in this way, while being able to improve the water-tightness at the time of external fitting of a temporary drainage hose, the fall prevention effect of the temporary drainage hose from a joint pipe can be heightened.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the following, a first embodiment of the present invention will be described with reference to FIGS.
[0012]
Reference numeral 1 denotes a drain body of a roof drain. The drain body 1 includes a tray part 2 and a drain pipe part 3 that is coupled to the tray part 2 and extends downward. It is constructed as embedded in the open-air floor 4 such as a balcony. Here, the saucer part 2 is exposed on the upper surface of the open-air floor part 4, while the drain pipe part 3 is located in the insertion hole 5 of the vertical pipe formed by opening the lower part to the open-air floor part 4. The outer peripheral surface of the drain pipe portion 3 is a fitted peripheral surface 3 ′ on which an inflow side end portion 9 of a joint pipe 8 described later is fitted. Further, on the inner peripheral surface of the insertion hole 5, the cylindrical spacer 6 used for supporting the drain main body 1 on the concrete formwork when the drain main body 1 is embedded in the outdoor floor portion 4 remains. The cylindrical spacer 6 covers the inner peripheral surface of the insertion hole 5.
[0013]
7 shows the connection apparatus of the temporary drainage hose for roof drains concerning this invention. Reference numeral 8 denotes a joint pipe constituting the coupling device 7, and the joint pipe 8 is tapered so that the diameter gradually decreases from the upper inflow side end portion 9 to the lower outflow side end portion 10. Is formed. An annular groove 11a of a size that can be fitted on the drain pipe 3 of the drain body 1 is formed on the inner periphery of the inflow side end 9 of the joint pipe 8, and the inner groove 11a includes an inner groove 11a. An annular packing 13 having a plurality of annular tongues 12 protruding from the peripheral surface is fitted. The annular packing 13 is formed of a material having appropriate elasticity such as rubber and soft synthetic resin, and chloroprene having particularly excellent weather resistance, durability, chemical resistance and the like can be suitably used as the material. . In addition, the joint pipe 8 is set to an appropriate length such that the outflow side end 10 protrudes below the outdoor floor 4 in a state where the inflow side end 9 is externally fitted to the drain pipe 3 of the drain body 1. Has been.
[0014]
Further, the outflow side end portion 10 of the joint pipe 8 is a fitting end 15 to which the temporary drainage hose 14 can be fitted. The fitting end 15 is formed so as to be gradually reduced in diameter as it reaches the outflow side continuously with the tapered shape of the joint pipe 8, and the outer peripheral surface of the fitting end 15 is formed on the outer peripheral surface of FIG. As shown in FIG. 2, a corrugated uneven surface 16 is formed along the axial direction of the joint pipe 8.
[0015]
A temporary drainage hose 14 is fitted on the fitting end 15, and the temporary drainage hose 14 is fastened by a tightening band 17. Here, the fitting end 15 is formed so as to gradually become smaller in diameter as it reaches the outflow side as described above, so that various temporary drainage hoses 14 having different diameters can be externally fitted. The wavy uneven surface 16 formed on the outer peripheral surface enhances the water tightness when the temporary drain hose 14 is fitted, and enhances the retaining function of the temporary drain hose 14.
[0016]
In such a configuration, as shown in FIG. 1, in the state where the temporary drainage hose 14 is externally fitted in advance to the fitting end 15 of the outflow side end portion 10 of the joint pipe 8 and fastened by the tightening band 17, When the inflow side end 9 of 8 is externally fitted to the drain pipe 3 of the roof drain, the annular packing 13 fitted to the inflow side end 9 is moved through the elastic deformation of the annular tongue 12 to the drain pipe 3. The fitting pipe 8 is held tightly fitted to the fitted peripheral surface 3 '. Thereby, the temporary drainage hose 14 can be easily attached to the drainage pipe part 3 through the joint pipe 8 only by fitting the joint pipe 8 to the drainage pipe part 3.
[0017]
The temporary drain hose 14 is not attached to the fitting end 15 of the joint pipe 8 in advance as described above, but only the joint pipe 8 is externally fitted to the drain pipe portion 3, and then the fitting end 15 is fitted. A temporary drain hose 14 can also be attached. Even in this case, since the fitting end 15 of the joint pipe 8 protrudes below the open-air floor portion 4, the attachment can be easily performed.
[0018]
Further, in this mounted state, by pulling out the inflow side end portion 9 of the joint pipe 8 from the drain pipe 3 of the roof drain, the joint pipe 8 is detached from the drain pipe 3 through elastic deformation of the annular packing 13. The temporary drainage hose 14 can be easily removed together with the joint pipe 3.
[0019]
FIG. 4 shows a second embodiment, which is a temporary drainage hose connecting device 7 applied to a roof drain in which a female screw 18 for threaded pipe threading is formed on the inner periphery of the drainage pipe section 3. An annular groove 11b having a size capable of being fitted into the drain pipe 3 is formed on the outer periphery of the inflow side end 9 of the joint pipe 8, and the inside of the annular groove 11b is shown. An annular packing 13 having a plurality of annular tongues 12 protruding from the outer peripheral surface is fitted. The female screw 18 of the drain pipe 3 is a fitted peripheral surface 3 ′ in which the inflow side end 9 of the joint pipe 8 is fitted. Other configurations are the same as those of the first embodiment, and the same portions are denoted by the same reference numerals and redundant description is omitted.
[0020]
In such a configuration, as shown in FIG. 4, the inflow side end portion 9 of the joint pipe 8 is fitted into the drain pipe portion 3 of the roof drain to be fitted into the inflow side end portion 9. The annular packing 13 is tightly fitted to the fitted peripheral surface 3 ′ of the drain pipe portion 3 through the elastic deformation of the annular tongue piece 12, and the joint pipe 8 is held. Here, since the temporary drainage hose 14 externally fitted to the fitting end 15 of the outflow side end 10 of the joint pipe 8 can be attached to the fitting end 15 in advance, the joint pipe as described above. The temporary drainage hose 14 can be easily attached to the drainage pipe part 3 of the roof drain via the joint pipe 8 only by fitting 8 to the drainage pipe part 3. In this mounted state, the temporary drainage hose 14 can be easily removed together with the joint pipe 8 by pulling out the inflow side end 9 of the joint pipe 8 from the drain pipe section 3.
[0021]
FIG. 5 shows a third embodiment, in which the drain main body 1 of the roof drain has an L-shaped receiving tray portion 2 and a drain pipe that is connected to the receiving tray portion 2 and extends laterally. It is comprised for the horizontal drain which comprises the part 3, and is embed | buried in the corner of the open-air floor parts 4, such as a balcony. The drain pipe part 3 is arranged so as to be positioned in a through-hole 5 ′ of a soot pipe formed by opening the outer side to a side wall 4 ′ rising from the outdoor floor part 4. On the inner periphery of the drain pipe portion 3, a female screw 18 for threaded pipe threading is formed, and the female screw 18 is fitted to the fitted peripheral surface into which the inflow side end portion 9 of the joint pipe 8 is fitted. 3 '.
[0022]
On the other hand, the joint pipe 8 constituting the temporary drain hose connecting device 7 is formed such that the outflow side end 10 is lower than the inflow side end 9 so that rainwater can naturally flow down. In addition, an annular groove 11b having a size capable of being fitted into the drainage pipe portion 3 is formed on the outer periphery of the inflow side end portion 9 of the joint pipe 8, and a plurality of outer peripheral surfaces are formed in the annular groove 11b. An annular packing 13 having an annular tongue piece 12 formed thereon is fitted. Other configurations are the same as those of the first embodiment, and the same portions are denoted by the same reference numerals and redundant description is omitted.
[0023]
In this configuration, as shown in FIG. 5, the inflow side end 9 of the joint pipe 8 is fitted into the drain pipe 3 of the roof drain so as to be fitted into the inflow side end 9. The annular packing 13 can be tightly fitted to the fitted peripheral surface 3 ′ of the drain pipe portion 3 through the elastic deformation of the annular tongue piece 12 to hold the joint pipe 8. Thereby, the temporary drainage hose 14 attached to the fitting end 15 of the joint pipe 8 can be easily attached to the drainpipe part 3 of the roof drain. Further, by pulling out the inflow side end portion 9 of the joint pipe 8 from the drain pipe section 3, the temporary drain hose 14 can be easily removed together with the joint pipe 8.
[0024]
In each of the above embodiments, the joint pipe 8 is formed in a tapered shape that gradually decreases in diameter from the inflow side end portion 9 to the outflow side end portion 10. You may make it respond | correspond to attachment of the temporary drainage hose 14 from which a diameter differs, forming only in the fitting end 15 part of the side edge part 10. FIG. Further, the annular packing 13 may not have the annular tongue piece 12 as long as it can be tightly fitted to the fitted peripheral surface 3 ′ of the drain pipe portion 3 through its elastic deformation.
[0025]
【The invention's effect】
In the present invention, as described above, the drain pipe portion 3 is covered with the inflow side end portion 9 of the joint pipe 8 that is externally or internally fitted to the drain pipe portion 3 of the roof drain embedded in the outdoor floor portion 4. The temporary drainage hose is fitted with an annular packing 13 that is tightly fitted to the fitting peripheral surface 3 ′, and the outflow side end 10 of the joint pipe 8 is a fitting end 15 to which the temporary drainage hose 14 is fitted. Since it is a connecting device, the temporary drainage hose 14 can be easily attached to the drainage pipe part 3 through the joint pipe 3 only by fitting the joint pipe 8 to the drainage pipe part 3 of the roof drain. In addition, the temporary drainage hose 14 can be easily removed together with the joint pipe 8 simply by pulling out the joint pipe 8 from the drain pipe section 3. Thereby, attachment / detachment of the temporary drainage hose 14 with respect to the drainage pipe part 3 becomes easy, and the workability | operativity can be improved.
[0026]
In addition, by forming the fitting end 15 of the joint pipe 8 in a tapered shape that gradually decreases in diameter toward the outflow side, the temporary drainage hose 14 having a different diameter can be attached to the fitting end 15. Further, by forming a wavy uneven surface 16 along the axial direction of the joint pipe 8 on the outer peripheral surface of the fitting end 15 of the joint pipe 8, water tightness and retaining when the temporary drainage hose 14 is fitted externally are formed. There are excellent effects such as an increase in action.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a use state of a first embodiment of a coupling device according to the present invention.
FIG. 2 is a longitudinal sectional view of the connecting device of the first embodiment.
FIG. 3 is a partial cross-sectional view showing an uneven surface at a fitting end.
FIG. 4 is a longitudinal sectional view showing a usage state of the second embodiment of the coupling device according to the present invention.
FIG. 5 is a longitudinal sectional view showing a usage state of a third embodiment of the coupling device according to the present invention.
FIG. 6 is a longitudinal sectional view showing a conventional configuration.
[Explanation of symbols]
2 Receptacle part 3 Drain pipe part 3 'mated peripheral surface 4 Open floor part 7 Connecting device 8 Joint pipe 9 Inlet side end 10 Outlet side end 13 Annular packing 14 Temporary drain hose 15 Fitting end 16 Concavity and convexity

Claims (1)

A roof drain that is embedded in an open-air floor portion, and a drainage pipe portion that is coupled to the saucer portion, for attaching a temporary drainage hose to the drainage pipe portion,
On the inflow side end portion of the joint pipe that is fitted or fitted into the drain pipe portion, an annular packing that is tightly fitted to the fitted peripheral surface of the drain pipe portion is fitted, while the outflow side of the joint pipe The end is a fitting end on which the temporary drainage hose is fitted , and
A connecting device for a temporary drainage hose for roof drain, wherein a corrugated uneven surface along the axial direction of the joint pipe is formed on the outer peripheral surface of the fitting end of the joint pipe .

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