KR20030091518A - Outlet pump mounting structure of washer - Google Patents

Abstract

PURPOSE: Assembling structure of a drain pump for a washing machine is provided to reduce processing or material cost by assembling a valve case with a valve cover with touching one time with simple structure. CONSTITUTION: A hook(62) is protruded in a valve case(60), and inserted to a hook hole(94). The hook hole is formed in the edge of a valve cover(90), and a fitting groove(96) is formed in the valve cover. A head part(63) of the hook inserted to the hook hole is fitted to the fitting groove, and the valve cover is combined with the valve case with touching once. An end(56a) of a valve chamber(56) in the valve case is pushed into the valve cover, and the hook is inserted to the hook hole. The valve cover is pushed by expanding bellows(70) and a return spring(88) with relieving compressive force, and the head part of the hook hole is fitted to the fitting groove.

Description

Outlet pump mounting structure of washer

The present invention relates to a drain valve of a washing machine to control the drainage of the wash water, and more particularly, to a drain valve coupling structure of the washing machine that can reduce the processing cost and material cost of the structure for assembling the valve case and the valve cover.

In general, as shown in FIG. 1, the washing machine includes an outer case 2 and a rotary wing 3 installed in the outer case 2 to accommodate laundry and form a wash flow at an inner lower side thereof. An inner tank 4 having a hand (not shown) formed therein, an outer tank 6 disposed between the inner tank 4 and the outer case 2 to receive the wash water, and disposed below the outer tank 6 and A motor 7 generating a driving force for rotationally driving the rotary blade 3 and the inner tub 4, and a power transmission selectively supplying the driving force of the motor 7 to the rotating blade 3 and the tub 4; A drain valve (10) connected in communication with the apparatus (8), a drainage hole (6a) formed in the lower part of the outer tub (6) to control the wash water drainage in the outer tub (6), and to the drain valve (10). Connected to the drain hose 30 for draining the wash water to the outside of the washing machine, the water supply hose 32 for supplying the wash water, and the water supply hose 32 It comprises a water supply valve 34 for regulating the supplied wash water, and a detergent box 36 for washing the wash water passed through the water supply valve 34 with the detergent.

Figure 2 is an exploded perspective view showing the main part configuration of the drain valve according to the prior art, Figure 3 is a side view of a part of the drain valve according to the prior art cut out.

2 and 3, the inlet 11 is connected to the drainage hole of the outer tank, the outlet 12 is connected to one end of the drain hose and the inlet ( 11 and the valve case 14 having an opening 13a formed at one side of the valve chamber 13 formed between the outlet portion 12 and the valve case 14 so as to open and close an internal flow path of the valve case 14. A bellows 15 disposed inside the valve chamber 13 of the valve 14, a plunger rod 16 interlocked with the drainage motor to advance and retract one end of the bellows 15, and the plunger rod 16 A return spring 17 is provided between the one end 16a and covers the opening 13a, and the valve cover 18 has a through hole 18a formed at the center to guide the retraction of the plunger rod 16. It is composed.

Here, the coupling structure of the drain valve 10 is a projection 20 protrudes in the circumferential direction on the outer peripheral surface of the valve chamber 13 of the valve case 14, the edge 19 of the valve cover 18 After the protrusions 20 are inserted in the axial direction, the guide holes 22 are formed to guide the protrusions 20 so that the protrusions 20 may be fixed in a circumferential direction. The holder part 24 which prevents the release of the protrusion 20 which is moved to the end of the guide hole 22 is formed stepped.

However, in the conventional drain valve coupling structure, not only the molding of the guide hole part 22 and the holder part 24 is complicated, but also the processing cost and material cost are increased, and one end of the valve case 14 is closed by the valve cover 18. Since the valve case 14 is rotated in the circumferential direction and then inserted into the valve case 14, there is a problem in that the workmanship is increased.

The present invention has been made to solve the above problems of the prior art, and an object thereof is to provide a drain valve coupling structure of a washing machine that can reduce the processing cost and material cost.

1 is a cross-sectional view showing the internal configuration of a general washing machine,

Figure 2 is an exploded perspective view showing the main part configuration of the drain valve according to the prior art,

3 is a side view of a part of the drain valve according to the prior art;

Figure 4 is an exploded perspective view showing the main configuration of the drain valve according to the present invention,

Figure 5 is a side view cut away a part of the drain valve according to the present invention.

<Explanation of symbols on main parts of the drawings>

54: inlet portion 55: outlet portion

56: valve chamber 57: opening

60: valve case 62: hook

63: head 70: bellows

80: plunger rod 88: return spring

90: valve cover 94: hook hole

96: step groove

Drain valve assembly structure of the washing machine according to the present invention for solving the above problems is formed hook hook is protruding in the valve case, the hook is inserted into the edge of the valve cover, the valve cover in the hook hole Stepped grooves are formed to catch the head of the inserted hook is characterized in that the valve cover is one-touch coupled to the valve case.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an exploded perspective view showing the configuration of the main part of the drain valve according to the present invention, Figure 5 is a side view cut away a part of the drain valve according to the present invention.

In the drain valve according to the present embodiment, the inlet part 54 is connected to the drainage hole (not shown) formed in the lower part of the outer tank (not shown), and the outlet part 55 is connected to one end of the drain hose and the inlet part 54 ) And a valve case 60 having an opening 57 formed at one side of the valve chamber 56 formed between the outlet portion 55 and the outlet portion 55, and the valve chamber 56 so as to open and close an inner flow path of the valve case 60. ) A bellows 70 disposed inside, a plunger rod 80 interlocking with the drainage motor (not shown), and advancing one end 71 of the bellows 70, and one end of the plunger rod 80. The return spring 88 is provided between the 81 and the through-hole 90a for guiding the retraction of the plunger rod 80 in the center thereof, and the one end of the valve chamber 56 of the valve case 60 ( And a valve cover 90 coupled to 56a in a one-touch manner to cover the opening 57.

Here, one end 81 of the plunger rod 80 is fixed to one end 71 of the bellows 70, and is retracted while compressing the return spring 88 when the drainage motor is driven, and the bellows 70 ), The inlet portion 54 and the outlet portion 55 communicate with each other.

The plunger rod 80 extends the bellows 70 while being pushed back to the home position by the return spring 88 when the drainage motor stops driving. 54) and the outlet portion 55 to be blocked.

On the other hand, the one-touch coupling structure of the valve case 60 and the valve cover 90 has a hook 62 protruding from the outer circumferential surface of one end 56a of the valve chamber 56 of the valve case 60, and the valve cover 90 A hook hole 94 into which the hook 62 is inserted is formed at an edge to push one end of the valve chamber 56 of the valve case 60 toward the inside of the valve cover 90.

In addition, the valve cover 90 is provided with a stepped groove 96 in which the head 63 of the hook 62 is engaged in a direction opposite to the insertion of the valve case 56 to form the valve case 60 and the valve. The cover 90 is coupled in a one-touch manner.

The stepped groove 96 is a rectangular groove formed in the circumferential direction on the outer circumferential surface of the valve cover 90 and has the same height as the head portion 63 of the hook 62.

On the other hand, reference numeral 58 is a fixed end formed with a fastening hole (58a) so that the valve case 60 can be screwed to the bottom of the outer tank.

Looking at the coupling process of the drain valve according to the present invention configured as described above are as follows.

First, the plunger rod 80 and the bellows 70 are inserted through the opening 57 so that the plunger rod 80 and the bellows 70 can be disposed in the valve chamber 56 of the valve case 60, and the return spring 88 is inserted into the valve spring 56. It is inserted between the outer circumferential surface of the plunger rod 80 and the inner circumferential surface of the bellows 70.

Then, one end 56a of the valve chamber 56 of the valve case 60 may be closed by the valve cover 90 so that the valve cover 90 may cover the opening 57 of the valve chamber 56. When pushed inward, the hook 62 is inserted into the hook hole 94.

At this time, the valve cover 90 is in a state in which the bellows 70 and the return spring 88 are compressed, and when the force applied to the valve case 60 is removed, the bellows 70 and the return spring are removed. As the valve 88 is expanded, the valve cover 90 is pushed out, and the head 63 of the hook hole 62 is engaged in the stepped groove 96, so that the valve cover 90 is connected to the valve case ( 60) in one-touch fashion.

The drainage valve coupling structure of the washing machine according to the present invention configured as described above is inserted into the valve cover with the hook protruded in one direction to the valve cover with the hook hole, the head of the hook is caught in the stepped groove formed in the valve cover There is an advantage that the coupling of the drain valve is made simple.

In addition, the hook, the hook hole, the stepped groove structure is simple, the molding is easy, there is an advantage that the processing cost and material cost is reduced.

Claims (3)

A hook protrudes from the valve case, and a hook hole for inserting the hook is formed at an edge of the valve cover, and a stepped groove is formed in the valve cover to catch the head of the hook inserted into the hook hole. Drain valve coupling structure of the washing machine characterized in that the one-touch coupling to the valve case. The method of claim 1, The stepped groove is a drain valve coupling structure of the washing machine, characterized in that the rectangular groove formed on the outer peripheral surface of the valve cover. The method of claim 1, The head portion of the hook drain valve coupling structure of the washing machine, characterized in that the same height as the stepped groove.