JP6871966B2 - Drain trap - Google Patents

Description

The present invention relates to a drain trap arranged in the middle of piping of various drainage facilities.
More specifically, it is related to drainage traps that are installed below various drainage facilities such as kitchen sinks, washrooms, and bathrooms to allow drainage from above to flow sideways. It belongs to the construction technology of.

Conventionally, the drain pipe is provided with a water-sealed drain pipe trap such as an S-shaped trap for the purpose of preventing the invasion of foul odors and pests from the outlet side.
However, in this water-sealed drainage pipe trap, since this utilizes the sealing action of the drainage accumulated in the bent portion of the drainage pipe, a certain amount of drainage always remains in the bent portion and solid matter. There was a problem that it was easy to get clogged.

Further, when the frequency of drainage is low, there is a problem that the drainage in the trap evaporates and the sealing action cannot be obtained.

Furthermore, in the case of a washroom, the washbasin to be installed has a structure in which a water-sealing drainage pipe trap is provided below the washbasin, so that the user, especially the wheelchair user, uses the washbasin. If you try, your feet or wheelchair will come into contact with the water-sealed drain trap, and you will not be able to get close enough to the basin, or you will not be able to avoid the water-sealed trap. There was also the problem of having to approach the washbasin in a posture.

For various drainage facilities such as kitchen sinks, washrooms, and bathrooms, a balance weight is provided on the swing valve body instead of the water-sealed drain pipe trap, and when there is no drainage, the swing valve body is provided with the balance weight. There is known a method of providing a drainage trap (valve trap) in which the valve body is opened by the weight of the drainage or the running water pressure at the time of drainage.

For example, in Japanese Patent Publication No. 63-23489 (Patent Document 1), it can be connected to a drain pipe even if there is no large space, and it can be used with peace of mind without the risk of clogging with kitchen waste, etc. Drainage traps have been proposed that can prevent the invasion of insects and mice as well as prevent them.

This drainage trap inclines the pipe opening on the side that serves as the drainage outlet, and a projecting piece that closes the pipe opening in a split circle along the inclined surface on the pipe wall on the side that forms an blunt angle with the inclined surface. A pair of supporting arms are provided on the protruding piece toward the outside of the pipe opening, and a shaft is bridged between the two supporting arms, while the valve main portion and the weight holding portion are formed in a dogleg shape on the side surface. A weight is fixed to the weight holding portion of the valve bent so as to form, the weight holding portion is positioned in the horizontal direction, the valve is swingably attached to the shaft, and the valve main portion is aligned with the protruding piece by the weight. It is urged in the direction of closing the pipe opening so as to be continuous on the line.

Further, in Japanese Patent Application Laid-Open No. 2004-197453 (Patent Document 2), the valve trap unit can be taken out by rotating the cap to remove it from the screwed portion of the casing and lifting the cap upward for maintenance. Drainage traps that can be easily and reliably cleaned have been proposed.

This drain trap has a sleeve having a tubular body that can be connected to the lower end of the upstream drain pipe and a flange portion extending outward in the radial direction at the lower end of the tubular body, and a sleeve having substantially the same diameter as the flange portion. A casing having a tubular body at the lower end that can be connected to the upper end of the downstream drainage pipe and a threaded portion on the outer peripheral surface of the upper end side of the tubular body, and an inclined short tubular body. A swing valve body that can be opened and closed is provided at the pipe opening, and a balance weight that urges the swing valve body in the closing direction is provided. A valve trap unit having a flange portion and an opening through which a sleeve tubular body portion can be inserted are provided in the center of the upper end lid portion, and a sleeve flange portion and a valve trap unit flange portion can be accommodated in a short cylindrical portion connected to the lower side of the outer circumference thereof. In addition, it is composed of a cap having a screwed portion corresponding to the screwed portion of the casing formed on the inner peripheral surface of the lower end of the short cylindrical portion.

Jikken Sho 63-23489 (Claims for Utility Model Registration, Fig. 2) Japanese Unexamined Patent Publication No. 2004-197453 (Claims, FIG. 1)

The drainage trap disclosed in Patent Documents 1 and 2 drains downwardly, and is attached between a drainage pipe provided below various drainage facilities and a drainage pipe provided under the floor. Therefore, it is difficult to form a sufficient space under the drainage facility for the user's feet and the wheelchair of the wheelchair user to approach.
Therefore, further improvement is required in terms of ease of use for drainage users, especially wheelchair users.

In view of the current situation, the present invention allows users, especially wheelchair users, to form a required space under the drainage facility when the drain trap is attached to various drainage facilities. It is intended to provide a drainage trap that makes it easy to use and makes it possible to increase the storage space provided under the drainage facility.

In order to achieve the above object, the invention according to claim 1 according to the present invention is:
A tube member composed of a tubular body with open upper and lower ends, a bottomed tubular flow path forming member detachably mounted in the tube member, and a detachably mounted in the flow path forming member. In a drainage trap composed of a trap main body and a cap member detachably attached to the lower end opening of the pipe member.
The pipe member is
It has a connection part that can be connected to the drainage pipe at its upper end, and also has a connection part that can be connected to the drainage pipe formed by extending laterally from the peripheral edge of the opening formed through the side surface.
The flow path forming member is
The trap main body has openings at the upper part corresponding to the upper opening of the pipe member and at the side surface corresponding to the lateral opening of the pipe member, and at a required portion on the inner surface. The inner bottom surface is formed on an inclined surface that is inclined downward toward the lower edge of the opening on the side surface.
The trap body is
With the end on the side opening side as the front end, the lower opening has an inclined surface whose peripheral surface decreases toward the rear, and the upper opening is formed with a flange having a pair of bearings. The drainage trap is characterized in that the rear side of the lower opening is closed by a shielding plate, and the portion not blocked by the shielding plate can be opened and closed by a valve body.

The invention according to claim 2 of the present invention
In the drain trap according to claim 1,
An engaging portion that engages with a stopper formed on the outer peripheral surface of the flow path forming member is formed at a required portion of the inner peripheral surface of the pipe member in order to position and fix the flow path forming member. It is characterized by that.

The invention according to claim 3 of the present invention
In the drain trap according to claim 1 or 2.
The inclined surface is
It is characterized in that the connection portion with the inner peripheral surface on the lower side of the lateral connection portion of the pipe member is formed so as to be smoothly connected with no or few steps.

The invention according to claim 4 of the present invention
In the drain trap according to any one of claims 1 to 3.
The flow path forming member is
The top thereof is in contact with the inner wall of the pipe member, and the bottom surface thereof is in contact with the back surface of the cap member.

The invention according to claim 5 of the present invention
In the drain trap according to any one of claims 1 to 4,
The trap body is
Equipped with a valve body
The valve body
The whole is composed of an elliptical plate-like body, and the base end side thereof is bent so as to form a lateral view to form a bent portion, and at the uppermost portion, a balance that constantly urges the valve body in the closing direction. A weight is provided, and the bent portion is provided with a tubular holding portion for holding a support shaft for swinging.

The invention according to claim 6 of the present invention
In the drain trap according to any one of claims 1 to 5,
The flow path forming member is
A ring-shaped mounting portion is formed on the required portion of the inner surface, a ring-shaped step portion is formed so as to project inside the mounting portion, and a fitting recess on one side is fitted on the step portion on the other side. It is provided with a pair of fitting recesses that are provided so as to be offset from the recesses.
The trap body is
A support shaft for oscillatingly holding the valve body at a position corresponding to the fitting recess on the lower surface of the flange in which a flange is integrally formed so as to surround the inflow port and outward. It is characterized in that a pair of bearing portions for engaging and holding both end portions are provided.

The drainage trap of the present invention includes a pipe member composed of a tubular body with open upper and lower ends, a bottomed tubular flow path forming member detachably mounted in the pipe member, and the flow path forming member. It is composed of a trap main body that is detachably attached inside and a cap member that is detachably attached to the lower end opening of the pipe member, and the pipe member can be connected to the drain pipe at the upper end portion thereof. The flow path forming member is provided with a connecting portion that can be connected to a drain pipe formed by extending laterally from the peripheral edge of the opening formed through the side surface. Openings are formed at each of the upper portion corresponding to the upper opening of the pipe member and the side surface corresponding to the lateral opening of the pipe member, and the trap main body is placed at a required portion on the inner surface. A mounting portion for mounting is formed, and the inner bottom surface is formed on a horizontal plane or an inclined surface inclined downward toward the lower edge of the opening on the side surface, and the trap main body is formed on the side opening. The lower opening has an inclined surface whose peripheral surface decreases toward the rear, with the end on the portion side as the front end, and the upper opening is configured to form a flange having a pair of bearings. The rear side of the lower opening is closed by a shielding plate, and the portion that is not blocked by the shielding plate is configured to be openable and closable by a valve body.
Therefore, since the trap itself can be miniaturized, the drain trap itself is extremely compact, and when attached to various drainage facilities, a required space can be formed below the drainage facility. Even if the user is a wheelchair user, it has the advantage of making it possible to use the drainage facility comfortably and further making it possible to increase the storage space provided below the drainage facility. doing.
Further, since the flow path forming member and the valve body can be easily attached to and detached from the drain trap, cleaning and maintenance work thereof are easy.

Incidentally, in the drain trap, the inner bottom surface of the flow path forming member, toward the opening lower edge of the side that is formed on the inclined surface is inclined downward.
With such a configuration, the drainage passing through the flow path forming member can flow out smoothly without causing convection, and further, foreign matter such as dust and hair is accumulated in the flow path forming member. It can be absent or excellent in its suppression.
At that time, in a state where the flow path forming member is mounted in the pipe member, the connecting portion of the inclined surface with the inner peripheral surface on the lower side of the lateral connecting portion of the pipe member has no step. Alternatively, it is preferable to form the tubes so that they are smoothly connected in a small amount.

Further, in the drain trap, the flow path forming member can be configured such that the top thereof abuts on the inner wall of the pipe member and the bottom surface thereof abuts on the back surface of the cap member.
With such a configuration, excessive swinging of the flow path forming member can be suppressed.

Further, a ring-shaped mounting portion is formed on the inner surface of the flow path forming member, a ring-shaped step portion is formed so as to project inside the mounting portion, and one side is fitted to the step portion. A pair of fitting recesses are formed in which the recesses are biased with respect to the fitting recesses on the other side, and the trap main body is integrally formed with a flange outwardly surrounding the inflow port. Further, at a position corresponding to the fitting recess on the lower surface of the flange, a pair of bearing portions for engaging and holding both ends of a support shaft for oscillatingly holding the valve body are provided. be able to.
With such a configuration, the trap main body can be accurately mounted in the flow path forming member.

Furthermore, since the trap main body constituting the drain trap of the present invention can be attached to and detached from the pipe member, the cleaning and maintenance work of the drain trap can be greatly simplified.

It is a vertical sectional view which shows an example of the drainage trap which concerns on this invention. It is a vertical cross-sectional view of the pipe member constituting the drainage trap shown in FIG. It is a vertical cross-sectional view of the flow path forming member constituting the drainage trap shown in FIG. It is a vertical cross-sectional view of the trap main body which constitutes the drainage trap shown in FIG. It is a top view of the trap main body shown in FIG. It is a bottom view of the trap main body shown in FIG. It is a top view of the flow path forming member shown in FIG. It is a top view of the cap member constituting the drainage trap shown in FIG. It is a vertical cross-sectional view of the cap member shown in FIG.

Hereinafter, the drain trap according to the present invention will be specifically described with reference to the accompanying drawings.
It should be noted that the present invention is not limited to the disclosed examples, and various improvements can be made without changing the gist thereof.

FIG. 1 is a cross-sectional view showing an example of a drain trap according to the present invention.
As shown in FIG. 1, the drainage trap 1 according to the present invention has a trap main body 4 for controlling drainage and the trap main body 4 detachably attached, and drainage flowing in from above (drainage facility) is laterally attached. A flow path forming member 3 to be distributed to the pipe member 3, a pipe member 2 to which the flow path forming member is detachably attached, and a cap member 5 detachably attached to the pipe member 2 so as to close the lower end opening 2e. It is composed of and.

The drain trap 1 can be made of an appropriate material such as a metal material such as stainless steel or a synthetic resin material, and there is no particular limitation on the material constituting the trap 1.

The pipe member 2 functions as a drainage pipe, and is composed of a tubular body with open upper and lower ends as shown in FIGS. 1 and 2.
In addition, in FIGS. 1 and 2, the pipe member 2 is configured such that the inner diameter thereof is substantially equal to the outer diameter of the flow path forming member 3 in order to accommodate the flow path forming member 3.

In FIGS. 1 and 2, the tubular body has a circular cross section, and a connecting portion 2a that can be connected to the lower end of a drainage pipe through which drainage flows is formed on the upper opening 2c side thereof. ..

Further, a side opening 2d is formed through the side surface of the pipe member 2, and can be extended laterally from the peripheral edge of the opening 2d to be connected to the end of the drain pipe for draining the drainage. The connecting portion 2b is formed.

Furthermore, a screwed portion 2g for screwing with the cap member 5 is formed on the inner peripheral surface on the lower end side of the pipe member 2.

It should be noted that the required portion of the inner peripheral surface of the pipe member 2 is engaged with the stopper 3i formed on the outer peripheral surface of the flow path forming member 3 described later to position and fix the flow path forming member 3. The engaging portion 2f is formed.

As shown in FIGS. 1 and 3, the flow path forming member 3 detachably mounted inside the pipe member 2 is composed of a bottomed tubular body having an upper opening 3e as a drainage inlet. An opening 3f as an outlet for draining the drainage in the lateral direction is formed through the side surface thereof, and a mounting portion for mounting the trap main body 4 described later is formed at a required portion on the inner surface. ..

In FIGS. 1, 3 and 7, the flow path forming member 3 is formed of a bottomed tubular body having a circular cross section, and has an outer diameter substantially equal to the inner diameter of the pipe member 2.

As shown in FIGS. 1 and 3, the upper opening 3e is formed at a position corresponding to the upper opening 2c of the pipe member 2 so as to communicate with the upper opening 2c of the pipe member 2, and the side surface thereof. The opening 3f is formed at a position corresponding to the side opening 2d of the pipe member 2 so as to communicate with the side opening 2d of the pipe member 2.
With such a configuration, a drainage path is formed in the flow path forming member 3.

In this embodiment, the upper opening 3e is formed so as to have a circular shape in a plan view larger than the upper opening 2c.
The side opening 3f is formed so as to have a rectangular shape in a plan view larger than the side opening 2d, and the lower edge of the opening 3f and the lower edge of the side opening 2d are horizontally connected to each other. However, it may be formed so that the lower edge side of the side opening 2d is lower than the lower edge side of the opening 3f.

The inner bottom surface 3d of the flow path forming member 3 is formed on a horizontal plane or an inclined surface inclined downward toward the side opening 3f communicating with the side opening 2d of the pipe member 2 for drainage guidance. To.

In FIGS. 1 and 3, the flow path forming member 3 has an inclined surface whose inner bottom surface 3d is inclined downward toward the lower edge of the side opening 3f.
With such a configuration, the drainage passing through the flow path forming member 3 does not cause convection, so that it flows out smoothly.
Further, it is possible to obtain an action effect that foreign matter such as dust and hair does not accumulate in the flow path forming member 3 or is excellent in suppressing the accumulation thereof.

In addition, when the inner bottom surface 3d is inclined downward toward the side opening 3f, the inclined surface is the pipe member 2 in a state where the flow path forming member 3 is mounted in the pipe member 2. It is more preferable that the connecting portion with the inner peripheral surface on the lower side of the connecting portion 2b of the above is formed so as to be smoothly connected with no or few steps.

As shown in FIGS. 3 and 7, a mounting portion for mounting the trap main body 4 is formed at a required portion on the upper inner surface of the flow path forming member 3.
The mounting portion is composed of a ring-shaped mounting portion 3a and a ring-shaped stepped portion 3b formed so as to project inside the mounting portion 3a.
A pair of fitting recesses 3c and 3c are formed in the step portion 3b in a state of being deviated from a portion where one fitting recess 3c faces.

Therefore, as will be described later, when the trap main body 4 is inserted into the flow path forming member 3 from the bottom side thereof so that the bearings 4d and 4d are fitted with the fitting recesses 3c and 3c, the trap main body 4 is inserted. , It is fixed in the flow path forming member 3 so as not to be detached.

In FIG. 1, the recess 3g formed in the center of the flow path forming member 3 is fitted with the fitting portion 5c formed on the upper surface of the cap member 5.
Therefore, the flow path forming member 3 is configured such that the top thereof abuts on the inner wall of the pipe member 2 and the bottom surface thereof abuts on the back surface of the cap member 5. Excessive rocking is suppressed.

As shown in FIGS. 1 and 3, a ring-shaped filter mounting portion 3h is formed by cutting out the peripheral edge of the upper opening 3e of the flow path forming member 3 to a required depth, and the mounting portion 3h is formed with a ring-shaped filter mounting portion 3h. A net-like filter member (not shown) as a collecting member for collecting dust, hair, etc. in drainage passing through the upper opening 2c of the pipe member 2 and the upper opening 3e of the flow path forming member 3. You may arrange it.

As shown in FIG. 4, the trap main body 4 mounted on the flow path forming member 3 is composed of a short tubular body having an inflow port 4a at the upper portion, and surrounds the inflow port 4a and faces outward. The flange 4c is integrally formed, and the end portion on the side opening 3f side is used as the front end, and the lower portion thereof is cut so as to be inclined diagonally upward from the front end to the rear end to form an outlet 4b. It is a thing.

As shown in FIG. 6, a pair of bearing portions 4d and 4d for engaging and holding both ends of a support shaft 7 for holding the valve body 6 swingably are provided on the lower surface of the flange 4c. There is.

In FIG. 6, since the bearings 4d and 4d are provided at positions corresponding to the fitting recesses 3c and 3c, one side is in a biased state with respect to the other side.
Therefore, when the trap main body 4 is attached to the flow path forming member 3, as shown in FIG. 7, the fitting recesses 3c formed in the bearings 4d and 4d and the step portion 3b of the flow path forming member 3 By placing the flange 4c on the above-mentioned mounting portion 3a with the 3c fitted to each other, the trap main body 4 is accurately mounted in the flow path forming member 3.

Further, as is clear from FIGS. 4 and 5, a semicircular shielding plate 4e is fixed to the rear end side of the lower opening of the trap main body 4 along the opening.
In this embodiment, the opening closed by the shielding plate 4e is 1/2 or less of the diameter of the lower opening of the trap main body 4.

As shown in FIG. 4, a valve body 6 is attached to the trap main body 2.
As shown in FIGS. 4 and 6, the valve body 6 opens and closes an opening other than the one closed by the shielding plate 4e, and is the proximal end side of the valve body 6 which is entirely an elliptical plate-shaped body. Is bent so as to form a "he" shape in a side view to form a bent portion 6b, a balance weight BW for always urging the valve body 6 in the closing direction is provided at the uppermost portion 6a, and the bent portion 6b is provided with a balance weight BW. A bearing (holding portion) 6c through which a support shaft 7 for rocking is inserted is provided.

Therefore, the valve body 6 is made swingable by pivotally supporting each end of the support shaft 7 held between the bearing portions 4d and 4d on the bearing 6c.

The balance weight BW is for urging the valve body 6 in the closing direction at all times, and when the water pressure or the flow rate of the drainage becomes larger than the weight of the balance weight BW, the balance weight BW exerts the urging force. Since it is lost, the valve body 6 opens, and the drainage flows out to the opening 3f as the drainage outflow portion.

As shown in FIG. 1, a cap member 5 having an outer diameter end substantially equal to the inner diameter of the opening 2e is detachably attached to the lower opening 2e of the pipe member 2 so as to close the opening 2e. It will be installed.

On the outer peripheral surface of the upper end of the cap member 5, a screwed portion 5b corresponding to the screwed portion 2g of the inner peripheral surface on the lower end side of the pipe member 2 is formed.
The method of engaging the pipe member 2 and the cap member 5 is not particularly limited, and a known engaging means such as a so-called bayonet method can be adopted, but it is preferable from the viewpoint of airtightness. , The screwing method is selected.

As shown in FIGS. 8 and 9, the cap member 5 is provided with a handle 5a for rotating the cap member 5 on the lower surface thereof, and is fitted with the recess 3g of the flow path forming member 3 on the upper surface thereof. A possible fitting portion 5c is formed.

In FIG. 9, an annular step portion 5d is formed on the lower outer periphery of the cap member 5, and an annular seal member (O-ring or the like) 8 is supported by the step portion 5d.
According to such a configuration, since the seal member 8 airtightly seals between the pipe member 2 and the cap member 5, the airtightness inside the pipe member 2 is improved, and the trap main body 4 Opening and closing can be done more accurately.

When constructing the drainage trap 1 made of such a constituent member, first, the support shaft 7 is attached to the valve body 6, and then the protrusions at both ends are formed on both ends of the flange 4c of the trap main body 4. The valve body 6 is oscillatingly held with respect to the trap main body 4 by engaging with the portions 4d and 4d, respectively, to form the trap main body 4.

Then, the trap main body 4 is inserted from the opening 3e at the upper part of the flow path forming member 3 in a state where the bearings 4d and 4d and the fitting recesses 3c and 3c are fitted, respectively, to form the trap main body 4 as a flow path. It is fixed in the member 3.
At that time, the trap main body 4 is fixedly held on the previously described placing portion 3a in a state where the valve body 6 is located on the side opening 3f side.

Further, the flow path forming member 3 is inserted from the opening 2e at the lower end of the pipe member 2 so that the opening 3f on the side surface communicates with the side opening 2d of the pipe member 2.

Thus, after the flow path forming member 3 is mounted in the pipe member 2, the opening 2e is closed by the cap member 5, and then the drainage trap 1 is arranged in the middle of the piping path of various drainage facilities. ..
At that time, since the flow path forming member 3 is sandwiched between the inner surface of the pipe member 2 and the back surface (lower surface) of the cap member 5, the flow path forming member 3 is prevented from moving in the vertical direction and is stable. Then, it is firmly fixed in the pipe member 2.

The drainage trap 1 has a pipe member 2 that is smaller than a conventional water-sealed drainage pipe trap such as an S-shaped trap, and has a size that allows a required space to be formed below the drainage facility. Since the trap main body 4 is mounted inside the pipe member 2 via the flow path forming member 3, it can be easily used below the drainage facility when constructing the drainage facility. Sufficient space can be secured to provide a larger storage space.

Further, if dust or foreign matter is accumulated or clogged in the drain trap 1 during use, the inside can be easily cleaned by removing the cap member 5 and performing the reverse operation of the above procedure. And the parts can be replaced very easily.

When the drain trap 1 having such a configuration is arranged in the middle of the piping path, if there is no drainage or the amount of drainage required to swing the valve body 6 is not enough, as shown by the solid line in FIG. Since the valve body 6 always closes the outflow port 4b by the action of the balance weight BW, the drainage does not flow to the connection portion 2b side.

On the other hand, when a predetermined amount of drainage from the drainage facility is accumulated in the drainage inflow portion X and the valve body 6 of the trap main body 4 is pressed toward the drainage outflow portion Y side by the water pressure or the flow pressure, as shown in FIG. The valve body 6 swings upward with the support shaft 7 as a fulcrum as shown by the chain line in FIG. 1, and the flow hole opens.

When the flow hole is opened, the drainage that has flowed into or accumulated in the drainage inflow section X flows to the drainage outflow section Y side through the flow hole, and when the water pressure on the valve body 6 is released, the valve body 6 becomes. By the action of the attached balance weight BW, the end face of the outflow port 4b is brought into close contact with the end surface again to prevent the drainage from flowing back from the drainage outflow portion Y to the drainage inflow portion X.

Unlike the conventional water-sealed drainage pipe trap, the drainage trap having such a configuration can be miniaturized and the structure can be simplified, and maintenance and cleaning are easy.

Further, the drain trap can be arranged in the middle of the piping route, and when it is arranged in the middle of various drainage facilities, particularly a kitchen sink, a washroom, a bathroom, etc. Since the distance from the pipe to the floor can be increased, the required space is formed below this drainage facility, and users, especially wheelchair users, can easily use the drainage facility. It makes it possible to increase the storage space provided below the drainage system.

The drain trap according to the present invention can be used by attaching water (drainage) discharged from equipment such as a kitchen sink, a washroom, and a bathroom to a piping path for discharging downward. In use, it is possible to form a sufficient space under the equipment, and maintenance and cleaning are possible without removing the piping.
Therefore, it can be used in various drainage facilities such as sinks, washrooms, and bathrooms of commercial or household kitchens that require drainage, and may be used in a wide range of industrial fields. Have.

1 Drain trap 2 Pipe member 2a Drainage inflow side connection 2b Drainage outflow side connection 2c Upper opening 2d Side opening 2e Lower opening 2f Engagement 2g Screwing part 3 Flow path forming member 3a Mounting stand 3b Step 3c Fitting recess 3d Inner bottom surface 3e Upper opening 3f Side opening 3g Recess 3h Filter mounting 3i Stopper 4 Trap main body 4a Inflow port 4b Outlet 4c Flange 4d Bearing part 4e Shielding plate 5 Cap member 5a Screwed part 5c Fitting part 5d Circular step part 6 Valve body 6a Top 6b Bending part 6c Bearing BW Balance weight 7 Support shaft 8 Seal member X Drainage inflow part Y Drainage outflow part

Claims (6)

A tube member composed of a tubular body with open upper and lower ends, a bottomed tubular flow path forming member detachably mounted in the tube member, and a detachably mounted in the flow path forming member. In a drainage trap composed of a trap main body and a cap member detachably attached to the lower end opening of the pipe member.
The pipe member is
It has a connection part that can be connected to the drainage pipe at its upper end, and also has a connection part that can be connected to the drainage pipe formed by extending laterally from the peripheral edge of the opening formed through the side surface.
The flow path forming member is
The trap main body has openings at the upper part corresponding to the upper opening of the pipe member and at the side surface corresponding to the lateral opening of the pipe member, and at a required portion on the inner surface. The inner bottom surface is formed on an inclined surface that is inclined downward toward the lower edge of the opening on the side surface.
The trap body is
With the end on the side opening side as the front end, the lower opening has an inclined surface whose peripheral surface decreases toward the rear, and the upper opening is formed with a flange having a pair of bearings. A drainage trap characterized in that the rear side of the lower opening is closed by a shielding plate, and a portion not blocked by the shielding plate can be opened and closed by a valve body. An engaging portion that engages with a stopper formed on the outer peripheral surface of the flow path forming member is formed at a required portion of the inner peripheral surface of the pipe member in order to position and fix the flow path forming member. drainage trap according to claim 1, characterized in <br/> that. The inclined surface is
The first or second aspect of the present invention, wherein the connection portion with the inner peripheral surface on the lower side of the lateral connection portion of the pipe member is formed so as to be smoothly connected with no or few steps. Drain trap. The flow path forming member is
The drainage trap according to any one of claims 1 to 3, wherein the top thereof is in contact with the inner wall of the pipe member, and the bottom surface thereof is in contact with the back surface of the cap member. The trap body is
Equipped with a valve body
The valve body
The whole is composed of an elliptical plate-like body, and the base end side is bent so as to form a lateral view to form a bent portion, and at the uppermost portion, a balance that constantly urges the valve body in the closing direction. The drainage trap according to any one of claims 1 to 4, wherein a weight is provided and the bent portion is provided with a tubular holding portion for holding a support shaft for swinging. The flow path forming member is
A ring-shaped mounting portion is formed on the required portion of the inner surface, a ring-shaped step portion is formed so as to project inside the mounting portion, and a fitting recess on one side is fitted on the step portion on the other side. It is provided with a pair of fitting recesses that are provided so as to be offset from the recesses.
The trap body is
A support shaft for oscillatingly holding the valve body at a position corresponding to the fitting recess on the lower surface of the flange in which a flange is integrally formed so as to surround the inflow port and outward. The drainage trap according to any one of claims 1 to 5, wherein a pair of bearing portions for engaging and holding both ends thereof are provided.

Images