JPH0559758A - Trap device for drain pipe - Google Patents

Abstract

PURPOSE: To obtain a trap device for drain pipe which has a small resistance against a liquid flow in a drain pipe, has a large filtrating capacity for blocking foreign matters, and can be disassembled easily at the time of removing the foreign matters accumulated in the pipe. CONSTITUTION: Foreign matters contained in a liquid flow passing through a U-shaped curved pipe member 14 are caught by closing the opening at the bottom of the pipe member 12 by means of a detachable trap member 16 and attaching a catching member inside the pipe member 12 and trap member 16 over the full cross section. The trap member 16 is made easily attachable/ detachable by locking the member 12 with a pair of U-shaped clips 18 and 20 pivotally attached to the pipe member 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trap device for a drainage pipe, and more particularly to a device having a trap member detachably attached to the bottom of a liquid reservoir.

[0002]

2. Description of the Related Art A drain trap device is used to capture foreign matter such as hair blocking a duct so that a liquid can flow through the duct without hindrance. Various types of drain pipe trap devices have been developed over the years, and are installed along a pipe line to trap foreign substances.

[0003]

All of the various conventional trap devices are limited in their ability to obstruct the flow of liquid as much as possible, yet to trap as much foreign matter as possible. Further, many of the conventional drain pipe trap devices need to call a specialized plumber for maintenance.

US Pat. No. 3,935,602
The specification describes an improved removable drain trap. In this patented invention, a transparent plastic trap member is removably mounted so as to close the bottom opening of the liquid reservoir. This trap member is provided with a plurality of protrusions so that foreign matter cannot pass through. However, if the protrusions are provided so as to be able to capture irregular objects, many foreign substances will not be captured by the protrusions when the flow rate passing through the liquid reservoir of the drain pipe is large.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drain pipe trapping device that solves the above-mentioned problems of the conventional device.

[0006]

In order to achieve the above object, the present invention is configured as follows.

(A) It is arranged in the middle of the drainage pipe and has a liquid reservoir between the front end and the rear end, and the front end is connected to the upstream drainage pipe and the rear end is connected to the downstream drainage pipe. And a curved pipe member having an opening on the lower surface of the liquid reservoir, and (b) is installed along the vertical cross section of the liquid reservoir of the pipe member to prevent foreign matter in the liquid flowing in the pipe member. A screen-shaped trapping member, (c) a support means for supporting the trapping member in the pipe member, and (d) a trap member having a groove for closing the opening of the liquid reservoir and supporting the trapping member. And (e) a trapping device for a drainage pipe, comprising: a trapping member and a catching member, the locking member detachably attached to a curved pipe member.

(A) A pipe member provided with a liquid reservoir portion whose bottom surface opens between the inlet end and the outlet end, (b) a trap member for closing the opening of the bottom surface, and (c) both vertical sides. A trapping member having a vertical grid having an edge, and engaging both side edges with a groove of the liquid reservoir when the trap member closes the opening, and is installed along a vertical cross section of the liquid reservoir. And (d) a trapping device for a drainage pipe, which includes a locking member that detachably mounts the trap member to the liquid reservoir of the conduit.

It is desirable that the vertical cross-sectional area of the liquid reservoir be an area corresponding to the maximum flow rate of the liquid passing through the pipe member (12).

The locking member is composed of a pair of U-shaped clips (18) (19) protruding from a curved pipe member, and is attached so as to lock and release the trap member (16). Is desirable.

It is desirable that the trap member (16) be formed of a transparent material so that the foreign matter trapped in the trap member (16) can be visually recognized.

It is desirable that the trap member (16) is formed into an elongated and deep cup shape so that the trap member (16) is a container for accommodating the foreign matter blocked by the trap member.

The trap member (16) is a curved pipe member.
(12) narrower and deeper than that of (12)
(12) It is desirable to use a container that accommodates foreign matter that flows through the inside, reaches the capturing member, and sinks.

[0014]

The bottom opening of the U-shaped curved pipe member (12) is closed by the removable trap member (16), and the trapping member is placed inside the pipe member (12) and the trap member (16). , Pipe member by mounting over the entire cross-section (14)
Trap foreign matter in the liquid flow passing through.

The cross-sectional area of the portion where the capturing member (14) is mounted is
The resistance to the liquid flow can be minimized by setting the dimension corresponding to the cross-sectional area of the pipe line corresponding to the maximum flow rate.

By locking the trap member (16) with a pair of U-shaped clips (18) (20) pivotally supported on the pipe member (12), the trap member (16) can be easily removed to remove foreign matter accumulated inside. It can be removed.

If the trap member (16) is made of a transparent plastic material, foreign matters accumulated in the trap member (16) can be visually recognized, so that the time to clean can be easily determined.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded side view of an embodiment of the drain pipe trap device of the present invention. The drain pipe trap device (10)
It is composed of a curved pipe member (12) preferably made of a transparent plastic material, a grid (14) as a catching member, and a detachable trap member (16).

In this embodiment, a locking member attached to the bottom of the pipe member (12), that is, a pair of U-shaped clips (18) and (20), is wound around the trap member (16). The trap member (16) is attached to the pipe member (12).

A groove (22) for supporting the grid (14) is formed in the center of the inner surface of the trap member (16).

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, in which the grid (14) is fitted and supported by the groove (22) in the trap member (16). When the trap member (16) is attached to the pipe member (12), the grid (14) extends vertically across the entire cross section at the bottom of the drain pipe.

The width of the trap member (16) is the pipe member (1
The width is smaller than the width of 2), and the vertical width of the grid (14) is changed so as to correspond to the lateral width of the pipe member (12) and the trap member (16).

The grid (14) is a drain pipe trap device (10).
It is provided so as to coincide with the vertical cross-section at the center of the curved portion of (1), so as to fulfill both functions of the maximum foreign matter capturing ability and the minimum liquid flow resistance.

When the drain trap device 10 is assembled as shown in FIG. 3, the grid 14 is retained in the central groove 22 of the trap member 16. The top of the grid (14) is grooved
The pipe member (1
It reaches the upper edge at the center of the curved part in 2). Thus, the grid (14) is installed vertically over the entire cross section of the pipe member (12), maximizing the chance of trapping foreign matter while allowing the maximum flow rate of liquid to pass.

Further, the grid (14) includes pipe members (12).
Since the inner surface of the trap member is in close contact with the inner surface of the trap member (16), the resistance of the liquid flow is uniform over the entire cross section.

As shown in FIG. 2, the lateral width of the trap member (16) is slightly smaller than that of the pipe member (12). Therefore, the liquid flow through the pipe member (12) is
A large amount of liquid will flow at a low speed in the wide part of the upper part of the.

Further, the trap member (16) is a pipe member (1
It protrudes below 2). Therefore, the trap member (1
Due to the large "trap portion" at the bottom of 6), the flow velocity becomes gentle, and the foreign matter flowing in the main flow path is filtered and settled by gravity, and collects at the bottom of the trap member (16).

Since the drain pipe trap (10) is made of a transparent material, it is possible to visually recognize obstacles and foreign matters accumulated in the trap member (16) and remove the trap member (16) for cleaning. You can easily determine when to do it.
In this way, a detachable drain pipe trap device having a maximum filtration capacity and a minimum flow resistance is realized.

The present invention has been described above based on the illustrated embodiments, but the present invention is not limited to the above-mentioned contents, and includes modifications and applications within a range not departing from the essence of the invention.

[0030]

【The invention's effect】

(a) Since the ability to filter foreign matters is large and the resistance to liquid flow is small, the liquid can flow smoothly.

(B) Since the trap member (16) can be attached and detached very simply by moving the pair of U-shaped clips (18) and (20), it is not necessary to call a professional plumber and a tool can be used. Is also unnecessary.

[Brief description of drawings]

FIG. 1 is an exploded front view of an embodiment of a drain pipe trap device of the present invention.

FIG. 2 is a vertical sectional view taken along line 2-2 of FIG. 1 during assembly.

FIG. 3 is a front view of the drain pipe trap device in an assembled state.

[Explanation of symbols]

 (10) Water pipe trap device (12) Pipe member (14) Grid (16) Trap member (18) (20) Clip (22) Groove

Claims (12)

[Claims] (A) A drainage line is disposed in the middle of the drainage line, and a liquid reservoir is provided between the front end and the rear end. The front end is an upstream drainage line and the rear end is a downstream drainage line. A curved pipe member that is connected and has an opening on the lower surface of the liquid reservoir; and (b) a foreign substance in the liquid flowing in the pipe member that is installed along the vertical cross section in the liquid reservoir of the pipe member. Screen-like trapping member for preventing the trapping member, (c) supporting means for supporting the trapping member in the pipe member, and (d) a groove for closing the opening of the liquid reservoir and supporting the trapping member. A drainage pipe trap device comprising: a trap member; and (e) a locking member that detachably mounts the trap member and the trapping member on a curved pipe member. 2. The trap device for a drain pipe according to claim 1, wherein the vertical cross-sectional area of the liquid reservoir is an area corresponding to the maximum flow rate of the liquid passing through the pipe member. 3. The locking member is a pair of U-shaped clips protruding from a curved pipe member, whereby the trap member is removably attached. Drain trap device. 4. The trap member is formed of a transparent material,
The trap device for a drainage pipe according to claim 1, wherein the foreign matter trapped in the trap member is made visible. 5. The trap device for a drainage pipe according to claim 1, wherein the trap member is formed in an elongated and deep cup shape to form a container for containing the foreign matter captured by the capturing member. 6. The trap member has a width narrower and deeper than that of a curved pipe member, and is a container for accommodating foreign matter which flows through the pipe member to reach the trapping member and sinks. The trap device for the drain pipe according to claim 5. 7. (a) Between the inlet end and the outlet end,
The pipe member is provided with a liquid reservoir having an opening on the bottom surface, (b) is a trap member for closing the opening on the bottom surface, and (c) is a vertical grid having vertical side edges, and the trap member closes the opening. At this time, both edges are engaged with the grooves of the liquid reservoir, and the trapping member installed along the vertical cross section of the liquid reservoir and (d) the trap member are attached to the liquid reservoir of the conduit. A trap device for a drainage pipe, comprising a locking member that is detachably mounted. 8. The trap device for a drain pipe according to claim 7, wherein the vertical cross-sectional area of the liquid reservoir is an area corresponding to the maximum flow rate of the liquid flow. 9. The locking member for detachably mounting the trap member is formed by a pair of U-shaped clips protruding from the pipe member, whereby the trap member is locked and released. The trap device for the drain pipe according to claim 7, which is characterized in that. 10. The trap device for a drain pipe according to claim 7, wherein the trap member is made transparent so that the trapped foreign matter can be visually recognized. 11. The trap device for a drainage pipe according to claim 7, wherein the trap member is formed in an elongated and deep cup shape so that foreign matter trapped by the trapping member can be recognized. 12. The trap member is formed to be narrower and deeper than the conduit so as to be a container for accommodating the foreign matter that has flowed through the pipe member, reached the trapping member, and settled. The trap device for the drain pipe according to claim 11.