JP2543569Y2 - Drainage unit with closed lid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device for a building, and more particularly to a drainage device with a closed-type opening / closing lid used for floors or drainage devices.

[0002]

2. Description of the Related Art Generally, a drainage device is provided with a water-sealing trap to prevent a bad odor or harmful gas generated in a drainage pipe from entering a room. In equipment, the seal often breaks due to pressure fluctuations in the drainage pipes caused by the flow of drainage, which causes odors and harmful gases in the piping to enter the room from the drainage equipment through the trap. Because of the problem, drainage devices that can be closed by closing the drainage port when drainage is not used are conventionally used. However, according to the conventional drainage device, there was a problem that the attachment and detachment of the lid was significantly hindered due to deformation of the lid receiving frame and the like.
No. 0 discloses a drainage device with a closed-type opening / closing lid in order to solve this problem.

[0003]

According to this drainage device, even if the trap is not sealed for some reason, the odor or harmful gas is surely prevented from entering the room. The ease of attaching and detaching the lid was reliably ensured. However, there were still points to be improved in this drainage device. That is, since the conventional drainage device has a configuration in which the lid is attached using a strainer, when the strainer is not required, another drainage device is used. It had to be prepared and was very uneconomical. In addition, when changing the specifications to a type with a strainer after construction, the floor had to be replaced and the equipment had to be replaced. SUMMARY OF THE INVENTION An object of the present invention is to provide a drainage device with a closed opening / closing lid which can be used both when a strainer is required and when a strainer is not required by using a lid receiving frame.

[0004]

According to the first aspect of the present invention, a pipe connecting portion for connecting a drain pipe is formed at a lower portion, and a strainer for screwing a strainer to an inner peripheral surface as necessary. A substantially cylindrical main body having a female screw portion formed thereon, and a lid mounted on an upper portion of the main body to seal the inside of the drain pipe, wherein the lid has a female screw portion formed at the center of the strainer. The two types of lids are prepared: a type to be mounted using a female thread, and a type to be mounted using a female screw portion for screwing the strainer. The two types of lids are provided depending on whether the strainer is mounted or not. A drainage device with a closed-type opening / closing lid, characterized in that the drainage device with a closed-type opening / closing lid can be mounted.

According to a second aspect of the present invention, there is provided the drainage device with a closed opening / closing lid according to the first aspect, wherein the strainer is formed in a tray shape having a constant depth, and a flange is provided on the outer periphery of the opening. Then, a drainage device with a closed-type open / close lid, wherein a male screw portion to be screwed into the female screw portion of the main body was formed on the peripheral surface of the flange portion.

[0006]

According to the first aspect of the present invention, a drainage device to be attached to a portion requiring a strainer (for example, a floor of a toilet) has a strainer attached to the inner peripheral side of the main body using a female screw portion of the main body. Then, a screw member is screwed into a female screw portion formed on the strainer, and a cover for a strainer type is attached. This is installed at a predetermined position on the floor, and a drain connected to a water sealing trap is provided at a lower portion of the main body. Connect the tubing. The procedure for assembling the strainer or the lid and the procedure for connecting the drainage pipe are optional.For example, the procedure of attaching the strainer and the lid after installing the main body at a predetermined position on the floor in advance and connecting the drainage pipe to the lower part thereof is adopted. There may be.

On the other hand, a drainage device to be attached to a portion where it is not necessary to attach a strainer, for example, as a cleaning port or an inspection port, is configured by attaching a non-strainer type lid to the main body without attaching the strainer. In this case, the lid is mounted by using a female screw portion formed on the inner peripheral surface of the main body in order to mount the strainer. The procedure for installation on the floor and the procedure for connecting the drainage pipe are arbitrary as described above.

[0008] Since the main body is diverted in this way, it is possible to easily cope with both the type in which the strainer is mounted and the type in which the strainer is not mounted. In addition, since this drainage device can be easily changed from the strainer type to the non-strainer type or vice versa after diverting the main body as it is, for example, once installed as a non-strainer type drainage device, If the need arises, it can be easily changed to a strainer type.

Next, a lid of a type which is mounted using the female screw portion of the strainer is fixed to the strainer using a screw member. When the screw member is provided with a projection for lifting the lid, Requires a certain distance between the strainer and the lid. In this regard, according to the configuration of the second aspect, the strainer is formed in a saucer shape having a constant depth, has a flange portion on the outer periphery of the opening, and has a male screw portion formed on the peripheral surface of the flange portion. Therefore, as compared with the case where the strainer is simply made into a disk shape, the female screw portion of the main body can be formed at a portion closer to the lid side while sufficiently securing the above-mentioned space, and according to this, the main body can be more The drainage device can be made compact by forming it thin.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. The drainage device of this example has a substantially cylindrical main body 2.
And a substantially disk-shaped lid and a strainer 5 used as required
Is mainly composed. The lid has two types of lids 3, 4
One lid 3 is used for a “strainer type” drainage device 1 in which a strainer 5 is mounted on the inner peripheral side of the main body 2 as shown in FIG. 1, and the other lid 4 is provided in FIG. As shown, it is used for a "non-strainer type" drainage device 1 'without a strainer 5 attached. The main body 2 is a common component for the two types of lids 3 and 4.

The drainage device 1 or 1 'of this embodiment is fitted into a hole penetrating through a floor F of a building, and is attached with its upper surface flush with the floor F. On the lower inner peripheral surface of the main body 2, a female screw portion 2a as a pipe connecting portion for connecting the drain pipe P is formed. The drain pipe P connected by the female screw portion 2a is connected to a water sealing trap (not shown).

A seat 2b for receiving the lid 3 or the lid 4 is formed on the upper inner peripheral side of the main body 2. The seat 2b is formed with an inner diameter capable of forming a certain gap with the outer periphery of the lid 3 or the lid 4. Also, this seat 2b
Is formed at a depth such that the upper surface of the lid 3 or the lid 4 and the upper surface of the main body 2 are flush with each other.

A female screw portion 2c is formed below the seat portion 2b, and the strainer 5 is formed through the female screw portion 2c.
Is detachably mounted. The strainer 5 is shaped like a saucer having a concave cross section in which a large number of water passage holes 5c are formed. Edges 5e, 5e for facilitating the rotation of the strainer 5 during attachment and detachment are opposed to the inner peripheral side. It is formed. A flange 5a is formed on the outer periphery of the strainer 5, and a male thread 5d is formed on a side surface of the flange 5a. The male screw portion 5d is screwed to the female screw portion 2c, and the strainer 5 is mounted on the inner peripheral side of the main body 2 in a receiving shape. The center of the bottom surface of the strainer 5 is a female screw portion 5 into which a screw member 7 described later is screwed.
b is formed.

An annular packing 6 is mounted on the back surface of the strainer type lid 3 shown in FIG. 1 over the entire periphery of the cover 3, and the packing 6 is provided between the packing 3 and the bottom surface of the seat 2 b of the main body 2. The lid 3 is hermetically attached to the main body 2 by being interposed in a pressed state. In addition, this lid 3
A hole 3a for inserting the screw member 7 is formed in the center of the hole 3a. The head 3 of the screw member 7 is inserted into the hole 3a.
A counterbore portion 3b is provided concentrically and concavely so as to fit a with the upper surface of the lid 3.

The screw member 7 has a male screw portion 7b that can be screwed into the female screw portion 5b, and a half of the shaft portion excluding the head portion 7a can be inserted into the hole 3a. The shaft 7c has a diameter. The tip of the shaft portion 7c, that is, substantially at the center of the shaft portion of the screw member 7, C
A U-shaped retaining ring 9 is mounted. Accordingly, the screw member 7 is assembled to the lid 3 by mounting the retaining ring 9 in a state of being inserted into the hole 3a. The axial length of the male screw portion 7b of the screw member 7 is such that the retaining ring 9 is still screwed into the female screw portion 5b when the retaining ring 9 is in contact with the back surface of the lid 3, whereby the screw is formed. When the member 7 is loosened and the lid 3 is removed from the main body 2, the retaining ring 9 is brought into contact with the back surface of the lid 3 before the male screw portion 7b is completely removed from the female screw portion 5b.
The lid 3 is lifted by the retaining ring 9 as the is loosened.

On the upper surface of the head 7a of the screw member 7, a tool groove 7d for using a tool such as a screwdriver when screwing or loosening is formed. Also, this head 7
A packing 8 is mounted on the back surface of the head 3a. In a state where the screw member 7 is tightened into the female screw portion 5b and the lid 3 is mounted, a gap between the head 7a and the bottom surface of the counterbore portion 3b of the lid 3 is provided. The packing 8 is interposed in a pressed state so that the space between the screw member 7 and the hole 3a is kept airtight.

The lid 3 described above is a strainer-type drainage device 1 in which a strainer 5 is mounted on the inner peripheral side of the main body 2.
The lid 4 prepared separately is used for the non-strainer type drainage device 1 'to which the strainer 5 is not attached. As described above, even in the case of the non-strainer type, the main body 2 has the same configuration as that of the above-described strainer type.

The lid 4 is also substantially disk-shaped, and has a slightly smaller diameter straight cylindrical portion 4a protruding from the back surface thereof. The outer circumferential surface of the straight cylindrical portion 4a is screwed to the female screw portion 2c of the main body 2. A possible external thread 4c is formed. This male screw portion 4c
This cover 4 is screwed into the female screw portion 2c of the
Is attached to the main body 2. An annular packing 10 is mounted on the outer periphery of the straight tube portion 4a over the entire circumference. And this packing 10 is the seat 2 of the main body 2.
The lid 4 is hermetically attached to the main body 2 by being interposed in a pressed state between the lid 4 and the bottom surface of the main body 2. A locking hole 4b for using a special tool at the time of attachment / detachment is provided on the upper surface of the lid 4.
Are formed at two places on the same circumference. in this way,
The cover 4 for the non-strainer type uses the internal thread portion 2c which is not necessary because the strainer 5 is not attached.
Attached to.

The drainage devices 1 and 1 'of this embodiment are constructed as described above. According to this, the inside of the drainage pipe P is hermetically sealed by attaching the lid 3 or the lid 4 to the main body 2. Therefore, even if the sealing water is broken or evaporated in the sealing trap (not shown), the odor and harmful gas in the drain pipe P do not enter the room.

Further, the strainer 5 can be easily attached and detached as required, and the lids 3 and 4 are prepared according to the presence or absence of the strainer 5. Even in the case of the above, the above operation and effect can be obtained. Moreover, since the main body 2 can be diverted as it is and can be arbitrarily changed to a strainer type or a non-strainer type, there is no need to take any construction work, and therefore, the applicable range of the drainage device of the present embodiment is significantly expanded.

Further, in the case of the drainer 1 of the strainer type, when the screw member 7 is loosened to remove the lid 3, the lid 3 is lifted by the retaining ring 9 with this. It is not necessary for the operator to pull off the lid 3 with a large force even when dust or the like is clogged with the seat portion 2b and the lid 3 can be easily removed.

In addition, it is necessary to provide a certain distance or more between the strainer 5 and the lid 3 due to the use of the screw member 7, but in this embodiment, the strainer 5 is formed in a tray shape having a certain depth. A flange 5a is provided around the opening, and a male thread 5d is formed on the peripheral surface of the flange 5a, so that the strainer 5 is mounted as compared with a case of simply forming a disk. Can be formed at a portion closer to the lid 3 side. For this reason, the body 2 can be formed thinner and the drainage device can be made compact.

In this embodiment, the projection provided on the screw member 7 is exemplified by a configuration in which the C-shaped retaining ring 9 is mounted. However, the projection is not limited to this. The shaft portion 7c is inserted in the radial direction, and both ends are inserted into the shaft portion 7c.
The projection may be provided in a fixed manner so as to protrude from the peripheral surface, or the projection may be provided in various other modes.

[0024]

[Effects of the Invention] According to the present invention, it is possible to easily change the type to a type with or without a strainer as necessary, and since the main body is diverted as it is, there is no need to perform installation work again. . For this reason, it is possible to efficiently prevent the odor and harmful gas from entering the room when the trap sealing water is not maintained, regardless of whether the strainer needs to be mounted or not.

Further, in the case of a drainage device having a strainer attached, since the lid is lifted by the retaining ring in the process of loosening the screw member to remove the lid, for example, dust or the like is clogged between the lid and the main body. Even when it is difficult to remove the cover, the operator can easily remove the lid without requiring any great force.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a drainage device of a type equipped with a strainer, showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a drainage device without a strainer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Drainage device (strainer type) 1 '... Drainage device (non-strainer type) 2 ... Main body 3 ... Lid (for strainer type) 4 ... Lid (for non-strainer type) 5 ... Strainer, 7 ... Screw member 9 ... Retaining ring

Claims (2)

(57) [Scope of request for utility model registration] 1. A substantially cylindrical main body having a pipe connecting portion formed at a lower portion for connecting a drain pipe, and a female screw portion formed on an inner peripheral surface for screwing a strainer as necessary. A lid attached to the upper part of the main body for sealing the inside of the drain pipe is provided. The lid is attached using a female screw portion formed at the center of the strainer, and a screw is attached to the strainer. Sealing characterized in that two types of types are prepared using the female screw portion of the type, and the two types of lids can be selected and mounted depending on whether the strainer is mounted or not. Drainage device with openable lid. 2. The drainage device according to claim 1, wherein the drainage device has a closed lid.
And the strainer is formed into a saucer having a constant depth,
A flange is provided on the outer periphery of the opening, and a peripheral surface of the flange is provided.
And a male screw part to be screwed into the female screw part of the main body .