KR200141004Y1 - The drain tub connecting construction for a washing machine - Google Patents

Abstract

The present invention is to provide a coupling structure of the drain hose for the washing machine and the drain pipe.

A locking projection is formed at one end of the drain hose of the washing machine, that is, an inner circumferential surface of the end coupled to the drain pipe, and a locking hole into which the locking projection is inserted and a leakage preventing groove into which the end of the drain hose is inserted are coupled to the drain hose of the drain pipe. By this, it is possible to combine the drain hose and the drain pipe more easily and firmly without using a separate fixing member.

Description

Combination structure of drain pipe for washing machine

1 is a longitudinal cross-sectional view showing an example of a washing machine in which an existing drain pipe is installed,

Figure 2 is a partially enlarged perspective view showing only the coupling structure of the drain pipe and the drain hose for a washing machine according to the present invention,

3 is a cross sectional view taken along the line I-I of FIG.

* Explanation of symbols for main parts of the drawings

2: reservoir 20: drain pipe

22: locking groove 26: leak prevention groove

28: packing member 30: drainage hose

32: jamming

The present invention relates to a coupling structure of a drainage pipe for a washing machine, and more particularly to a coupling structure of a drainage pipe for a washing machine having watertightness retaining fitting grooves installed in the drainage pipe for tightly coupling the drainage pipe and the drain hose.

In general, there are various kinds of washing machines according to the washing method, and these washing machines are provided with a drain pipe for discharging the washing water discharged from the water tank to the outside, and a drain hose disposed to be exposed to the outside of the washing machine in combination with the drain pipe. have.

An example of a washing machine equipped with such a drain hose and a drain pipe is shown in FIG. 1 is a longitudinal cross-sectional view showing an example of a conventional washing machine in which a drain pipe is installed, and a lower base 4 is installed at a lower portion of the washing machine outer box 1 in which the water storage tank 2 and the washing tank 3 are accommodated. One side of the lower base 4 is provided with a drain valve 7 coupled to communicate with the reservoir 2 and a drain pipe 6 integrally formed in contact with this and open to the outside.

The drain hoses 5 are inserted into the end portions of the drain pipe 6 so as to be mutually connected to extend outward of the washing machine.

In addition, the coupling of the drain pipe 6 and the drain hose 5 is to apply the adhesive to the outer peripheral surface of the coupling end of the drain pipe 6 and then insert one end of the drain hose 5 to maintain a close state and then not shown A clamp or the like is fitted to the outside of the coupling end of the drain hose 5 and the drain pipe 6 to tighten the drain hose 5 and the drain pipe 6 integrally.

However, since the existing connection of the drain hose 5 and the drain pipe 6 has to use a separate bonding member, such as a clamp after applying the adhesive material, the connection parts are not only consumed as much. The problem is that the work efficiency and economic efficiency of the drain hose and the drain pipe are reduced due to the work process.

Accordingly, an object of the present invention is to solve the above-mentioned defects, and to integrally form a watertight holding fitting groove in the drain pipe, and to install a catching means that is integrally engaged with the drain hose at a predetermined portion thereof. The present invention provides a coupling structure of a drainage pipe for a washing machine that improves the coupling workability and economy of the drainage pipe and the hose.

A feature of the present invention for achieving the above object, in the washing machine having a drain hose for draining the wash water discharged from the reservoir to the outside, the reservoir and the drain hose is connected in contact, the drain hose and watertight on any part Drain pipe formed integrally with the leak-proof groove to be connected; And a catching groove formed on a coupling surface of the drain pipe and the drain hose, respectively, and including catching grooves for integrally coupling the drain hose and the pipe and the catching protrusions installed to correspond to the catching grooves. It is in a coupling structure.

Hereinafter, a more preferred embodiment of the coupling structure of the drainage pipe for a washing machine according to the present invention based on the accompanying drawings will be described in detail.

2 is a partially enlarged perspective view showing only the coupling structure of the drainage pipe and the drain hose for the washing machine according to the present invention, and FIG. 3 is a cross-sectional view along the line I-I of FIG.

As shown in the figure, the coupling structure of the drain pipe for a washing machine according to the present invention is provided with a drain pipe 20 to form a flow passage 24 for washing water in contact with the drain hose (30).

The drain pipe 20 is formed to be slightly smaller than the diameter of the drain hose 30 to be inserted into the drain hose 30 to be coupled to, and around the drain pipe 20 to the drain pipe 20 An annular leak-proof groove 26 for watertightly coupling the outer drain hose 30 is integrally formed. The leakage preventing groove 26 is preferably formed to be slightly larger than the diameter of the drain hose 30 to facilitate the insertion of the drain hose (30). In addition, the inside of the leakage preventing groove 26 may be provided with a rubber packing member 28 for maintaining watertightness.

Engaging surfaces are respectively provided at engaging surfaces of the drain pipe 20 and the drain hose 30. The locking means is a locking groove 22 and a protrusion 32 corresponding thereto. The locking groove 22 and the locking protrusion 32 may be formed to be located at either of the drain pipe 20 and the drain hose 30, but the locking protrusion 32 is coupled to the locking groove 22. In order to facilitate, it is preferable to form the inclined in the fitting direction with the drain pipe 20.

In the above embodiment, the coupling of the drain pipe 20 and the drain hose 30 by the locking groove 22 and the protrusion 32 is illustrated as an example, but the drain pipe 20 and the drain hose ( If only 30 can be firmly combined, other methods may be used. The number of the engaging grooves 22 and the projections 32 is also not limited to the display of the drawings according to the above embodiment, and can be provided arbitrarily.

Effects of the present invention having such a configuration will be described in detail with reference to FIGS. 2 and 3 again.

Briefly describing the coupling method of the drain pipe 20 and the drain hose 30 according to the present invention, the drain pipe 20 is connected to the water reservoir 2 as shown in FIG. The leakage preventing groove 26 formed in the drain pipe 20 is fixedly installed to be exposed to the outside from the lower base 4.

When the installation of the drain pipe 20 is completed, the drain hose 30 is ready to be pushed into the drain hose 30 of the drain pipe 20 while applying pressure. At this time, the end of the drain hose 30 is coupled to the outer circumferential surface of the drain pipe 20 is inserted into the leak-proof groove 26 of the drain pipe 20, and the locking projection 32 of the drain hose 30 ) Is fitted into the engaging groove 22 formed in the corresponding position, and the end surface of the coupling side of the drain hose 30 is located in the interior of the leak-proof groove 26 of the drain pipe 20 in advance. It is in close contact with the packing member 28. Therefore, the drain pipe 20 and the drain hose 30 are in a state of being watertightly coupled without being easily separated.

Since the drain hose 30 is fitted into the drain pipe body 20 at the same time, the locking protrusion 32 is not automatically fitted into the locking groove 22, so that the locking protrusion 32 is locked. When it is not properly fitted to the drain hose 30 is turned while applying a force around the drain pipe body 20, the locking projection 32 is fitted into the locking groove (22). In addition, the drain hose 30 is resisted by the catching protrusion 32 when coupled around the drainage pipe 20, but make the catching projection 32 inclined in the fitting direction of the drain hose 30. This is not a big problem for joining.

As described above, according to the present invention, since the fitting groove is integrally formed in the drain pipe, the assembly performance can be directly assembled without using a separate fixing member as in the conventional case. Economic effect is improved.

Claims (3)

A washing machine having a drain hose (30) for draining laundry water discharged from the reservoir (2) to the outside, wherein the reservoir (2) and the drain hose (30) are connected in contact with each other, and the drain hose (30) is located on a portion of the drain hose (30). Drain pipe 20 is formed integrally with the leak-proof groove (26) for watertight connection; And engaging grooves 22 formed on coupling surfaces of the drain pipe body 20 and the drain hose 30 to integrally couple the drain pipe body 20 and the hose 30 together with the locking grooves 22. Coupling structure of the drain pipe for a washing machine including a locking means made of locking projections (32) installed corresponding to the field. The method of claim 1, wherein the leakage preventing groove 26 is a coupling structure of the drain pipe for washing machine, characterized in that the watertight maintenance packing member 28 is further provided. The coupling structure of the drain pipe for a washing machine according to claim 1, wherein the locking protrusions (32) are formed to be inclined in any one direction.