JP5000058B2 - Bathroom ventilation duct connection structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure for a bathroom ventilation duct.
[0002]
[Prior art and problems]
In winter, a large amount of condensed water is generated in the ventilation duct due to ventilation in the bathroom during and after bathing, and this condensed water enters the wall that separates the outside from the interior, causing frost damage to the wall. May cause condensation to leak indoors.
[0003]
In view of such a problem, the present invention can reliably prevent frost damage of a wall body caused by bathroom ventilation and leakage of dew condensation water indoors, and can also be easily constructed. It is an object to provide a connection structure.
[0004]
[Means for Solving the Problems]
The above problem is that one side sandwiching the collar portion of the short tube with a collar having a collar portion projecting outward in the middle part in the length direction is a through hole opened in the wall body that partitions the outdoor and indoor The brim is inserted in the penetrating state so that the collar part exists on the indoor side and the tip part protrudes outdoors, and the ventilation duct from the bathroom is connected to the other side of the collar part of the short tube with the collar. It is solved by the connection structure of the bathroom ventilation duct, characterized by
[0005]
In this structure, one side that sandwiches the collar part of the short tube with a collar is fitted into the hole in the wall so that its tip part protrudes to the outside, so the dew condensation water coming out through this tip part is Can be prevented from entering the wall. In addition, since the short pipe collar is located on the indoor side, even if the condensed water leaks from the indoor end of the short pipe, such condensed water will enter the wall. This brim portion prevents entry from entering, and it is also possible to prevent dew condensation water from entering the wall from the indoor side. In this way, it is possible to prevent the intrusion of condensed water into the wall and prevent the wall from being frozen.
[0006]
In this case, when the short tube with a collar is fitted into the through hole so that the collar portion is in contact with or close to the indoor surface of the wall body, the collar portion is attached to the wall body. Only by making it contact | abut on an inner wall surface, the front end side which pinches | interposes a collar part can be reliably made to project to the outdoor side, and construction can be performed reliably and efficiently. Moreover, it can also suppress or prevent that dew condensation water or moisture tries to enter into a wall body between a collar part and a wall body.
[0007]
Of course, the above-mentioned short pipe with a collar may be separated from the indoor side surface of the wall body, and even if it is such a separated brim, it leaks from the indoor side end of the short pipe. Such dew condensation water can be effectively prevented from entering the wall from the indoor side.
[0008]
In the above connection structure, the connecting pipe is connected in an externally fitted state on the side projecting indoors across the collar portion of the short tube with a collar, and the ventilation duct from the bathroom is composed of a flexible duct and is provided at the tip thereof. It is also possible to connect the ventilation duct and the short tube with a collar in communication with each other so that a duct tip tube portion is connected to the connecting tube so as to contact the end surface of the short tube with a collar.
[0009]
In this case, the contact between the short tube with a flange and the duct tip tube, and the connecting tube is connected to these tubes in an externally fitted state, thereby connecting the short tube with a flange and the duct tip tube. It is possible to firmly prevent the condensation water from leaking and to prevent the condensation water from leaking to the indoor side. In addition, the connection pipe can be inserted until it contacts the flange of the short pipe, and inserted until it contacts the end of the short pipe with the flange at the end of the duct. Can do. In addition, a short tube with a collar, a connecting tube, and a duct tip tube can be constructed indoors, and the construction can be easily performed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0011]
In the embodiment shown in FIG. 1 and FIG. 2, reference numeral 1 denotes a bathroom made up of a unit bath or the like, and a wall body 4 that divides the outdoor side 2 and the indoor side 3 is adjacent to the bathroom 1. 4, a through-hole 5 that communicates the indoor side 3 and the outdoor side 2 is provided at a position higher than the ceiling height position of the bathroom 1.
[0012]
In addition, a ventilation inlet 7 is provided on the ceiling surface 6 of the bathroom 1, and a ventilation exhaust fan 8 is provided on the back of the ceiling directly above the inlet 7. The duct 9 is extended. The ventilation duct 9 is made of a flexible tact, and has a connecting pipe portion 9a at the tip thereof.
[0013]
10 is a short tube with a flange, and 11 is a connecting tube. The short tube 10 with a collar is provided with a circular ring-shaped collar portion 10a projecting outward at an intermediate portion in the longitudinal direction.
[0014]
The tube portion 10b on one side sandwiching the flange portion 10a is formed to have an outer peripheral size that can be fitted into the through-hole 5 opened in the wall body 4, and its length dimension is a wall. It is formed larger than the thickness dimension of the body 4, and the tube portion 10 b is fitted into the through hole 5 of the wall body 4 from the indoor side 3, so that the tip portion is the surface of the wall body 4 on the outdoor side 2. It is made to protrude outward.
[0015]
The connecting pipe 11 is fitted into the flanged short pipe 10 and the distal end pipe portion 9a of the ventilation duct 9 in an externally fitted state to connect the pipes 10 and 9a. The short tube 10 is made longer than the tube portion 10c on the other side sandwiching the collar portion 10a. The connecting tube 11 is brought into contact with the tube portion 10c of the short tube 10 with a collar, and the end surface thereof is in contact with the collar portion 10a. The distal end pipe portion 9a of the ventilation duct 9 can be inserted and connected by utilizing the remaining length portion when fitted up to.
[0016]
The short tube 10 with a collar is attached to the wall body 4 from the indoor side 3 by connecting one pipe portion 10b of the short tube 10 with the collar to the through hole 5 opened in the wall body 4 and the collar portion 10a to the wall. It fits to the place which contacts the surface of the body 4 on the indoor side . Thereby, the front-end | tip part of this pipe part 10b of the short pipe 10 with a collar is reliably constructed | assembled in the state protruded outward rather than the surface of the outdoor side of the wall body 4. FIG. Since it is only necessary to insert the brim portion 10a until it comes into contact with the surface of the wall 4 on the outdoor side, the construction can be performed easily.
[0017]
The construction of the short tube 10 with the collar on the wall body 4 may be performed at a stage before the bathroom unit 1 is installed, or the inspection port provided on the ceiling 6 after the bathroom unit 1 is installed. 12 may be performed.
[0018]
Next, as shown in FIG. 1, the bathroom 1 is installed on the connecting pipe 11 that is externally connected to the other pipe part 10 c that sandwiches the collar part 10 a of the collared short pipe 10. Through the inspection port 12 provided in the inner ceiling 6, the tip tube portion 9 a of the ventilation duct 9 is inserted until the tip surface abuts on the end surface of the tube portion 10 c of the collar tube 10. 10 and the ventilation duct 9 are connected. One end of the connecting pipe 11 is positioned in contact with the collar portion 10a of the flanged short tube 10, so that the distal end tube portion 9a of the ventilation duct 9 contacts the end surface of the tube portion 10c of the collared short tube 10. If it is inserted to the point of contact, an appropriate connection state can be automatically obtained. In addition, the connection pipe 11 may be connected to the distal end pipe part 9a of the ventilation duct 9, and the connection pipe 11 may be connected to the pipe part 10c of the flanged short pipe 10. As described above, the ventilation duct 9 is connected in communication with the outdoors. Reference numeral 13 denotes a ventilation cover.
[0019]
In the above connection structure, one tube portion 10b sandwiching the flange portion 10a of the flanged short tube 10 is fitted into the through hole 5 of the wall body 4 so that the tip portion protrudes to the outdoor side 2. It is possible to prevent the dew condensation water coming out through the tip from entering the wall body 4 from the outdoor side. Moreover, since the collar portion 10a of the short tube 10 with the collar exists on the indoor side 3, even if there is a case where condensation water leaks from the indoor side end of the short tube 10 with the collar, This brim 10a prevents such dew condensation water from entering the wall body 4, and it is also possible to prevent dew condensation water from entering the wall body 4 from the indoor side 3. Moreover, since the collar portion 10 a is installed in a state where it is in contact with or close to the indoor side surface of the wall body 4, condensed water or moisture can enter the wall body 4 through the space between the collar portion 10 a and the wall body 4. Attempts are suppressed or prevented. In this way, it is possible to prevent dew condensation from entering the wall body 4 and prevent the wall body from being frozen. In addition, in the wall body 4, 4a is a ventilation layer and 4b is a heat insulating material.
[0020]
Furthermore, the short pipe 10 with the collar and the ventilation duct 9 are connected by connecting the connection pipe 11 to the pipe section 10c of the short pipe 10 with the collar and the tip pipe section 9a of the ventilation duct in an externally fitted state. , The tube portion 10c of the flanged short tube 10 and the tip tube portion 9a of the ventilation duct 9 are brought into contact with each other in the connecting tube 11, so that the flange tube short tube 10 and the duct tip tube portion 9a are in contact with each other. Condensed water leakage at the connecting portion can be securely prevented, and condensed water leakage to the indoor side 3 can be prevented.
[0021]
In addition, since the connection structure is simple, it is possible to adopt a construction method in which the duct work is performed through the inspection port 12 after the bathroom unit 1 is installed, and the construction work of the bathroom 1 including the work of the duct 9 is easy. You can go quickly and efficiently.
[0022]
【Effect of the invention】
Since the present invention is as described above, it is possible to reliably prevent frost damage on the wall body caused by bathroom ventilation and leakage of condensed water into the room, and the construction thereof can be easily performed.
[Brief description of the drawings]
FIG. 1, showing an embodiment, is a cross-sectional side view showing a state before a ventilation duct is connected.
FIG. 2 is a cross-sectional side view showing a state after connection.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Bathroom 2 ... Outdoor side 3 ... Indoor side 4 ... Wall body 5 ... Through-hole 9 ... Ventilation duct 9a ... End pipe part 10 ... Short pipe 10a with a collar ... Collar part 10b ... Pipe part 10c ... Pipe part 11 ... Connection pipe

Claims (1)

One side that sandwiches the collar part of the short tube with a collar that has a collar part projecting outward in the middle part in the length direction, the collar part is inserted into the through hole opened in the wall that separates the outside from the indoor is brought into contact with the surface of the interior side of the wall, so as to protrude the tip outdoors, from indoor side, it was written because fitted in the through state,
A connecting pipe is inserted and connected in an externally fitted state on the other side of the flange of the short pipe with the collar, and the duct tip pipe part of the ventilation duct from the bathroom is in an internally fitted state with respect to the connecting pipe The ventilation duct and the short tube with a collar are connected in a connected state.
The length of the connection pipe is set to be larger than the length of the pipe portion on the other side sandwiching the collar portion of the short tube with a collar. It is made possible to insert and connect to the connecting pipe using the remaining length when the end is fitted to the pipe part on the other side of the short pipe with the collar until the end abuts against the collar part. The connection structure of the bathroom ventilation duct, characterized by

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