JPS60173231A - Clogging relase apparatus of drain port - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for unclogging drains in sanitary equipment, particularly pumps for unclogging drains in sinks, washbasins, or bathtubs. It relates to a device of the type.

[Conventional technology]

A simple yet effective device is needed to unclog drains and the like. A known device consists of a rubber cup attached to a handle that is placed over the drain and pressed to open the drain.

[Problem that the invention seeks to solve]

``As long as the drain is not completely blocked and the liquid does not accumulate in the sink, the air pressure generated by conventional devices is low and can slightly assist in clearing the blockage. It's nothing more than that.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an effective device for unclogging drain pipes.

[Failure to solve the problem]

To solve the above problems, the present invention includes a hollow plastic body having a handle, an orifice communicating with the hollow body, and a cap or nozzle surrounding the orifice, wherein the body Provided is a device for unblocking drains, etc. of sanitary equipment, which has a tongue portion configured to be expandable and retractable so as to draw in fluid into the body and discharge fluid out of the body. .

The body may be formed by blow molding, and the handle may form an integral part of the body, in which case it is formed during the blow molding. In other configurations, the handle is formed as a separate blow molding and is adapted to be secured to the body.

Preferably, the handle is formed with internal threads that mate with complementary threads formed on the outside of the body. The main body is preferably provided with a diameter portion formed in the shape of a venturi tube. This serves to improve the hydraulic characteristics of the pump. Furthermore, this part of the molded body is reinforced so that it can be used as a grip. The Venturi tube is coaxial with the orifice.

The cap or nozzle is preferably formed as a separate member and is adapted to be threaded or push-fitted onto the end of the body. For this purpose, a threaded neck is arranged surrounding the orifice. The cap is fitted onto the neck in either the forward or reverse direction. The shape of the cap is such that it fits into the drain hole of sanitary ware such as sinks, washbasins, bathtubs, etc. one side of the cap has a convex surface particularly suitable for fitting into a conventional sink drain;
The other side is concave to suit the drainage port of the raised plug. That is, the other surface is composed of a circumferential sealing lip and an inner coaxial portion having a plurality of protrusions spaced apart in the circumferential direction. The cap or nozzle is preferably formed as an injection molded part from a rubber-type material with good sealing properties.

[Effect]

The device of the invention has the advantage that liquid can be drawn into the body of the device and then discharged from the body into a drainage system. The reversible nozzle allows the device to be easily adapted to various drain shapes.

〔Example〕

Referring to the drawings, the device of the invention consists of a hollow plastic body l with a handle 3 and a nozzle or cap 5. The body is preferably formed by blow molding and has a retractable tongue portion 7. The orifice opens into the interior of the body and a neck 9 surrounds the orifice. A male thread is formed on the neck, and a complementary female thread 11 is formed on the neck.
A nozzle or cap 5 is received. or,
The nozzle or cap is press-fit into the neck, which is provided with a circumferential retaining ridge. The body has a reduced diameter section 13. This part is shaped like a Venturi tube,
It has been strengthened so that it can be used as a grip. The body is provided with axially spaced circumferential lips forming a reduced diameter section.

This part is relatively rigid.

The handle 3 can also be formed integrally with the body 1 during the molding process. Alternatively, as in the illustrated embodiment, it may be formed separately and preferably as a blow molded part. The handle grip 17 is formed in a D-shape, so that
The tongue portion can be squeezed firmly to extend and retract.

The end of the body 1 is provided with a threaded portion formed during molding, which end is complementary to the internal thread formed on the handle 3. The female thread of the handle 3 is formed by carefully adjusting the wall thickness so that the thread is formed on the handle and the female thread is formed at the same time. To improve the finished appearance, the outer surface is undercut to form circumferentially spaced, longitudinally extending lips 15 on the outer surface to conceal the screws 111. The shape of the thread can be seen between the longitudinal lips.

As shown, the lip in the operator's direction is substantially rectangular and projects perpendicularly from the outer periphery of the handle 3. Other shapes of lips can also be used.

A similar shaped lip is provided on the outer periphery of the nozzle 5. By making the handle 3 a separate member, the handle 3 and the main body 1 can be made of different colored plastics. Furthermore, more suitable materials can be selected for the handle 3 and the main body 1. Since the tongue portion of the main body 1 is required to be foldable like a concertina, polypropylene or polyethylene is suitable as the material.

The handle 3 can be made from these materials, but if desired, it can be made from inexpensive polyvinyl chloride (P, V, etc.).

C1) can also be used.

The nozzle or cap 5 is preferably formed by injection molding from a rubber-like material that exhibits good sealing properties. - The surface 19 is convex and suitable for fitting into a flat circular drain. The other surface is concave and forms a circumferential lip 21. The lip is tapered toward the seal edge, giving the lip greater elasticity as it approaches the seal edge. The base of the concave surface is formed by a shoulder 23 coaxial with the screw 11. The shoulder has circumferentially spaced projections 25. As shown in the figure, the nozzle is attached to the shoulder 23
It is drilled in. This allows for savings in material usage. Shoulder 23 if necessary
The central part m) forming the outer circumferential wall 21 and the outer circumferential wall 21 may be provided with radial reinforcing lips.

The wall thickness of the body 1 varies along its length.

For example, one portion of the tongue is approximately half as thick as the other portion. Determine the slope and folding of the tongue part. The body can be blow molded from a 25.4+n+n tube. For blow molding the handle 3, a larger diameter tube is used.

In the device of the present invention, when a portion of the tongue is compressed in the axial direction,
Acts as a water or air pump. Fluid is expelled from the orifice during the pressing stroke. The body 1 is made of plastic that is durable and elastic enough to withstand concertina action during use. This material naturally returns to its molded shape after compression.

ct Ming/I211 This device cleans clogs in sink units, hand wash basins, bathtubs, bidets, shower drains, and other types of drains fixed to flush toilet fixtures and water-using equipment. It is suitable for removal by interviewing or applying a fit on top.

To unclog the trap and adjacent pipes, fill the device with water, place it in place, and while holding it firmly in place, use a nondle to apply a portion of the tongue to draw water and air into the pipe. Pressure is applied to the clog, causing it to be discharged, and alternately suction is applied.

The concave surface of the nozzle is particularly effective for use with raised plug drains, and the nine threads prevent raised plugs from blocking the orifice during the suction stroke of the bellows.

[Brief explanation of drawings]

1 is a front view of the device according to the invention, FIG. 2 is an end view taken in the direction of arrow A in FIG. 1, FIG. 3 is a front view of the pump body of the preferred embodiment, and FIG. 4 is a cross-section of the nozzle. It is a diagram. 1...Hollow plastic body 3...Handle 5.
... Cap or nozzle 7 ... tongue part 9 ...
・Neck 11... Thread 13... Reduced diameter part 15... Longitudinal lip 17...
・Handle grip] 9...Cap or nozzle tip 21...H circumferential lip 23...Shoulder 25...9th line Kesmond Charles Dormond 161 FIG, :] FI G, 4

Claims (9)

[Claims] (1) a hollow plastic body having a handle;
an orifice communicating with the hollow body and a cap or nozzle surrounding the orifice, the body having a tongue configured to expand and contract to draw fluid into the body and expel fluid out of the body. 1. A device for unblocking drains, etc. of sanitary equipment, characterized by having a portion. (2) The device according to claim 1m, wherein the handle is a separate member configured to be fixed to the main body. (3) The device W according to claim 2, wherein the main body is formed with a male thread, and the nondle is formed with a female thread that engages with the thread of the main body. (4) The device according to claim 1, 2 or 3, wherein the main body and/or the nondle are formed from a plastic material by blow molding. (5) The device according to any one of claims 1 to 4, wherein the handle has a zero-shaped grip. (6) The device according to any one of claims 1 to 6, wherein the cap is a separate member that is fitted into the orifice in both forward and reverse directions.
#. (7) The device according to claim 6, wherein one side of the cap is convex and the other side is concave. 8. The device of claim 7, wherein the concave surface comprises an outer sealing lip and an inner coaxial portion having a number of circumferentially spaced protrusions. (9) The device according to any one of claims 1 to 8, wherein the cap or nozzle is made of a rubber-type material that is elastic and has good sealing properties. (1(e) The device according to any one of claims 1 to 9, wherein the tongue portion is axially expandable and retractable.