JP6279451B2 - Drain trap - Google Patents

Description

The present invention relates to a drain trap disposed in a drain pipe.
More specifically, it relates to a drain trap that is provided in an office, a plant, a store, a residence, etc., and distributes drainage, and belongs to a piping technology and a building construction technology.

Commercial or household air conditioners, refrigerators, refrigerators, kitchen appliances, electric water heaters, and drainage pipes that drain from emergency drainage should be protected from odors and insects and small animals from downstream. A drain trap is provided to prevent this.
As such a drain trap, an S-shaped trap is generally used.
However, since the S-shaped trap uses the blocking action of the drainage accumulated in the bent part of the drain pipe, when the frequency of drainage is low, the drainage in the trap evaporates and the blocking action is obtained. There is an increasing number of cases where valve traps (mechanical traps) are used instead of S-shaped traps.

The valve trap is provided with a balance weight on the swing valve member, and when there is no drainage, the swing valve member is closed by the balance weight, and at the time of drainage, the valve member is opened by the weight of the drainage or the flowing water pressure to allow the drainage to flow down. Is.
An example of such a trap for drainage is disclosed in JP 2010-285863 A (Patent Document 1).

  The patent document 1 is intended to provide a compact horizontally placed drainage trap that has a simple structure and can be placed in a low and narrow space such as under the floor.

Specifically, the drain trap has a connecting portion for connecting a drain pipe to each of the opposing parts of the trap main body having a flat bottom surface, and has an opening at the top, and the opening It can be opened and closed by a cap member,
In the trap main body constituting the drain trap, a mounting seat for horizontally opening and closing a valve member having a balance weight is disposed horizontally,
A valve seat that is always in contact with the valve member and has a flow hole for drainage is provided so as to be inclined in the downstream direction from one end portion to the bottom surface portion of the mounting seat. Partition and
The valve member is swingably held on a mounting base that is detachably mounted on the mounting seat,
The mounting base holding the valve member is configured to be removable from the mounting seat by detaching the cap member.

The drainage trap described in Patent Document 1 uses a swingable valve member having a balance weight to block the drainage inflow portion and the drainage outflow portion. It is said that the odor transmission from the downstream side and the invasion of insects and small animals are surely prevented without using the accumulated water (paragraph 0021).

Japanese Patent Laying-Open No. 2010-275763 (Claims, FIG. 1)

  Since the drain trap disclosed in Patent Document 1 requires a plurality of drain pipes and joints such as elbow joints when arranged in the drain piping route, the installation work becomes cumbersome and the workability is poor. However, since there is a problem that the cost is increased, a more compact drain trap is required.

  Furthermore, since the drain trap disclosed in Patent Document 1 is arranged through a plurality of drain pipes and joints, it is not easy in maintenance.

In view of the present situation, the present invention enables drainage traps to be cleaned and maintained more easily by allowing the trap main body constituting the drainage trap to be detachably mounted in the middle of the drainage pipe. It is intended to provide a trap.

In order to achieve the above object, the invention according to claim 1 of the present invention provides:
It consists of a pipe member arranged in the piping path, and a trap main body detachably mounted in the pipe member,
The pipe member is
One opening is an inflow port, and the other opening is an outflow port, and has a ring-shaped index forming portion in which a plurality of indexes are formed and an engaging portion of the trap main body,
The trap subject is:
The lower opening has an inclined surface whose peripheral surface decreases toward the rear, and the upper opening is formed with a flange having an index.
The drain opening trap is characterized in that the rear side of the lower opening is closed by a shielding plate, and a portion not closed by the shielding plate can be opened and closed by a valve member.

The invention according to claim 2 of the present invention is
The drainage trap according to claim 1,
The pipe member is
A ring-shaped indicator forming portion is provided on the inner peripheral portion, and a ring-shaped engaging portion that is in contact with the flange of the trap main body is provided below the ring-shaped indicator forming portion
The index forming unit is characterized in that the first index and the second index are formed at an interval.

The invention according to claim 3 of the present invention is
The drain trap according to claim 2,
The pipe member is
The engaging recess on one side is provided to be biased with respect to the engaging recess on the other side in the opposite part of the ring-shaped engaging portion.

The invention according to claim 4 of the present invention is
The drainage trap according to claim 1,
The trap subject is:
A pair of operating projections are formed on the surface of the flange.

The invention according to claim 5 of the present invention is
The drain trap according to claim 3,
The trap subject is:
Engagement pieces that respectively engage with engagement recesses formed in the pipe member are provided on the rear surface of the flange.

The invention according to claim 6 of the present invention is
In the trap for drainage in any one of Claim 1 or 4, 5,
The trap subject is:
The rear side of the lower opening is closed by a semicircular shielding plate, and the portion not closed by the shielding plate can be opened and closed by a valve member made of an elliptical plate-like body as a whole. It is.

The invention according to claim 7 of the present invention is
The drainage trap according to claim 1,
The trap subject is:
The portion of the lower opening that is not blocked by the shielding plate is made openable and closable by a valve member that is pivotally mounted on a support shaft provided on the shielding plate or the trap main body.

  The drainage trap of the present invention is an integral part of the drainage pipe by detachably providing a trap main body that opens and closes depending on the presence or absence of drainage in the middle part of the drainage pipe. By adopting such a configuration, the trap for drainage is provided. Since the piping can be simplified and made compact, the range of the installation location is expanded.

  Furthermore, since the trap for drainage of this invention makes the trap main body which comprises this detachable with respect to a pipe member, the cleaning and maintenance operation | work of a trap for drainage can be simplified greatly.

In particular, the drain trap according to the present invention has extremely high practicality, such as the trap body and the pipe member constituting the drain pipe being bayonet-coupled so that the installation work of the drainage facility can be simplified. It is.

1 is a plan view of a trap main body constituting a drain trap, showing an embodiment of the drain trap according to the present invention. It is a bottom view of the trap main body shown in FIG. It is a partially notched top view which shows an example of the eaves member which comprises the drain trap of this invention. It is a side view of the valve member which comprises a trap main part. It is a side view which shows the other example of the valve member which comprises a trap main body. It is explanatory drawing which shows the relationship between a trap main body and a valve member. It is a longitudinal cross-sectional view which shows the use condition of the trap for drainage of this invention.

Hereinafter, an example of an embodiment of a drain trap according to the present invention will be specifically described with reference to the accompanying drawings.
The drain trap of the present invention is not limited to the illustrated embodiment, and can be improved within a range not changing the gist of the invention.

  The drain trap 1 of the present invention comprises a trap main body 2 for controlling drainage, and a pipe member 8 on which the trap main body 2 is detachably mounted. Both of them are made of a metal material such as stainless steel or a synthetic resin material. It is composed of a suitable material.

  As shown in FIG. 6, the trap main body 2 is configured such that a lower portion of a short cylindrical body having an inflow port 2 a at an upper portion is inclined obliquely from a front end to a rear end to be an outflow port 2 b. A flange 2c is integrally provided so as to surround 2a.

  In the center of the upper surface of the flange 2c, a pair of operation projections 3 and 3 are disposed at opposite positions, and as is apparent from FIG. , 4 are provided with the respective engaging portions on the outside, and one side is provided in a biased state with respect to the other side, and the bayonet mechanism is constituted by engaging recesses 10a, 10a formed in the tube member 8 described later. .

An index 2d for easily mounting the trap main body 2 on the pipe member 8 is provided at the center of the upper surface of the flange 2c between the opposing operation projections 3 and 3.
When the trap main body 2 is mounted on the pipe member 8, the index 2d is provided on the trap main body 2 after being matched with the first index 9a provided on the pipe member 8, as shown in FIG. The trap main body 2 can be accurately mounted in the pipe member 8 by rotating the index 2d in the direction of the second index 9b provided inside the pipe member 8.

Further, a semicircular shielding plate 5 is fixed to the trap main body 2 on the rear end side of the lower opening portion along the opening portion as is apparent from FIG.
The opening closed by the shielding plate 5 is ½ or less of the diameter of the trap main body 2.

  One pipe member 8 functions as a drainage pipe, and as shown in FIG. 3, the drainage inlet 8a on the upper surface is an elbow-shaped outlet having an outlet 8b projecting laterally on the bottom surface. A mounting portion for mounting the trap main body 2 is formed at a required portion of the inner surface.

The mounting portion includes a ring-shaped index forming portion 9 and a ring-shaped engaging portion 10 that is formed to protrude inside the index forming portion 9.
The index forming unit 9 is provided with a second index 9b located on the axis of the outlet 8b, and a first index 9a arranged at an interval from the second index 9b. A pair of engaging recesses 10a, 10a is formed in the joint portion 10 in a state of being deviated from a portion where one engaging recess 10a faces.
One engagement recess 10a is provided with stoppers 10b and 10b for preventing the engaged trap main body 2 from rattling.

Therefore, by using the operation projections 3 and 3 provided on the trap main body 2, the trap main body 2 is matched with the index 2 d formed on the flange 2 c of the trap main body 2 with the first index 9 a of the flange member 8. Is inserted into the tube member 8 from the bottom side.
Next, when the trap main body 2 is rotated to the second index 9b side, the engagement pieces 4 and 4 provided on the lower surface of the trap main body 2 are bayonet-coupled to the lower surface of the engagement portion 9 and cannot be detached. A fixed drain trap 1 is formed.

The valve member 6 attached to the trap main body 2 opens and closes an opening other than the one closed by the shielding plate 5.
As shown in FIGS. 4 and 5, the valve member 6 is bent at the base end side of the valve member 6a formed of an elliptical plate-like body so as to have a “h” shape when viewed from the side. , And through holes 6c and 6c for mounting the balance weight 11 are formed in the bent portion 6b, and a bearing portion 6d is provided in the vicinity of or just below the bent portion 6b.
Note that the tip of the bearing portion 6d may or may not be in contact with the bent portion 6b.

  The balance weight 11 is for urging the valve member 6 in the normally closing direction. When the water pressure or flow rate of the drainage exceeds the weight of the balance weight 11, the balance weight 11 loses its urging force. Comb.

  The valve member 6 has bearings 7a, 7a, 6b provided on the trap main body 2 as shown in FIG. 2 at the end of the support shaft 7 held between the bearing portions 6d, 6d. It can be swung freely by being pivotally supported by 7a.

  When holding the support shaft 7 on the bearing 6d, as shown in FIG. 5, the formation position of the bearing 6d is formed directly below the bent portion 6b, thereby improving the manufacturing accuracy of the valve member 6. Can do.

  Further, when the valve member 6 is swingably provided, the base end side of the valve member 6 and the front edge side of the shielding plate 5 are partially overlapped so that a gap is formed between the valve member 6 and the shielding plate 5. Does not occur, and odors, insects and small animals do not enter the trap main body 2.

  In the drain trap 1 having such a configuration, since the pipe member 8 and the trap main body 2 constituting the drain pipe are integrated in advance, the number of drain pipes and joints to be used is reduced when constructing the drainage facility. Therefore, piping can be simplified.

  In this embodiment, the tube member 8 has an elbow shape, but may have various shapes such as a socket and an increaser shape.

  As shown by the solid line in FIG. 7, the drain trap 1 arranged in the piping path is provided with the valve member 6 when there is no drainage or when there is no drainage amount necessary to swing the valve member 6. Since the tip end always closes the outlet 2b by the action of the balance weight 11, the drainage does not flow through a drain pipe (not shown) connected to the outlet 8b.

  On the other hand, as shown in FIG. 7, drainage from an air conditioner or the like flows in from the inlet 8a, accumulates in the trap main body 2 through the inlet 2a, and the balance weight 11 depends on the gravity or the flowing water pressure of the drainage. When the valve member 6 is pressed toward the outlet 2b against the urging force, the valve member 6 swings downward with the support shaft 7 as a fulcrum as shown in FIG. 7, and the outlet 2b opens. To do.

When the outlet 8b is opened, the wastewater that has flowed into or accumulated in the trap main body 2 is discharged to a drain pipe (not shown) through the outlet 8b.
Thereafter, when the water pressure on the valve member 6 is released, the tip of the valve member 6 comes into close contact with the end surface of the outlet 2b again by the action of the attached balance weight 11 .

The drainage trap of the present invention can be used for commercial or household air conditioners, refrigerators, refrigerators, kitchen equipment, electric water heaters, and parts that require drainage such as emergency drainage. However, it can also be used as a trap for receiving indirect drainage.

The drain trap according to the present invention is very compact, so it can be used for business or household air conditioners, refrigerators, kitchen equipment, electric water heaters, and parts that require drainage such as emergency drainage. Since it can be used, it has a possibility of being utilized in a wide industrial field.

DESCRIPTION OF SYMBOLS 1 Drain trap 2 Trap main body 2a Inlet 2b Outlet 2c Flange 2d Index 3 Operation protrusion 4 Engagement piece 5 Shielding plate 6 Valve member 7 Support shaft 7a Bearing 8 Tube member 8a Inlet 8b Outlet 9 Index formation part 9a 1st index part 9b 2nd index part 10 Engagement part 10a Engagement recessed part 10b Stopper
11 Balance weight L Center line

Claims (7)

It consists of a pipe member arranged in the piping path, and a trap main body detachably mounted in the pipe member,
The pipe member is
One opening is an inflow port, and the other opening is an outflow port, and has a ring-shaped index forming portion in which a plurality of indexes are formed and an engaging portion of the trap main body,
The trap subject is:
The lower opening has an inclined surface whose peripheral surface decreases toward the rear, and the upper opening is formed with a flange having an index.
A drainage trap, wherein a rear side of the lower opening is closed by a shielding plate, and a portion not closed by the shielding plate can be opened and closed by a valve member . The pipe member is
A ring-shaped indicator forming portion is provided on the inner peripheral portion, and a ring-shaped engaging portion that is in contact with the flange of the trap main body is provided below the ring-shaped indicator forming portion
2. The drain trap according to claim 1, wherein the first index and the second index are formed at an interval in the index forming unit. The pipe member is
3. The drainage device according to claim 2, wherein an engagement concave portion on one side is provided to be biased with respect to an engagement concave portion on the other side in a portion where the ring-shaped engagement portion faces each other. trap. The trap subject is:
The drain trap according to claim 1, wherein a pair of operation protrusions are formed on a surface of the flange. The trap subject is:
The drainage trap according to claim 3, wherein an engagement piece that engages with an engagement recess formed in the pipe member is provided on a rear surface of the flange. The trap subject is:
The rear side of the lower opening is closed by a semicircular shielding plate, and a portion that is not closed by the shielding plate can be opened and closed by a valve member made of an elliptical plate-like body as a whole. Item 6. The drainage trap according to any one of Items 1 or 4 and 5. The trap subject is:
The portion of the lower opening that is not blocked by the shielding plate can be opened and closed by a valve member pivotably mounted on a support shaft provided on the shielding plate or the trap main body. The drain trap as described.

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