KR101309297B1 - Washing machine - Google Patents

Abstract

The present invention forms a tooth shape in the cap for fixing the washing machine drainage pump to improve the bonding force with the dustproof member, to prevent the separation by vibration or incomplete assembly of the product, to provide a washing machine that can facilitate assembly. In the washing machine comprising a drain case forming an external appearance of the drain pump, an impeller provided inside the drain case, a pump motor for providing a driving force to the impeller, and a drain filter for filtering foreign substances introduced into the drain case. The dustproof member is provided at one side of the drain case, and is provided to fix the drain case to the washing machine, and includes a fixing cap having a close protrusion formed at a contact portion with the dustproof member.

Description

Washing machine {WASHING MACHINE}

1 is a perspective view schematically showing the internal structure of a washing machine according to the present invention;

2 is an exploded perspective view schematically showing a washing machine drainage device according to the present invention;

3 is a perspective view schematically showing a cap for fixing formed with a contact protrusion according to the present invention,

Figure 4 is a perspective view schematically showing a combined state of the drainage case and the fixing cap of the washing machine according to the present invention.

Description of the Related Art [0002]

1: washing machine 2: water tank

3: case 4: rotating tub

5: motor 6: door

7: water supply device 10: drainage device

11a, 11b: drain hose 20: drain pump

30: pump motor 40: drain case

40a: opening 41: thread

50: fixing cap 52: close contact

52a: entry ramp 52b: protruding jaw

60: dustproof member

The present invention relates to a washing machine that forms a tooth shape in the cap for fixing the washing machine drain pump, improves the bonding force with the dustproof member, prevents separation due to vibration or incomplete assembly of the product, and facilitates assembly. .

In general, a washing machine is a device for washing a laundry by rotating a cylindrical rotating tub containing laundry and washing water, a drum washing machine that washes laundry by lifting the laundry upwards when the rotating tub rotates, and a pulse There is a vertical washing machine, which is a method of washing laundry by water flow generated when the data rotates.

Such a washing machine includes components such as a water tank in which washing water contained in a rotating tank is washed, and a drainage device for forcibly discharging the washing water contained in the water tank after washing is completed.

The drainage device includes a drainage pump for generating a pumping force and allowing the wash water to be forcibly discharged, and a filter member for filtering foreign substances contained in the washwater and preventing foreign substances from entering the drainage pump. It includes a drain case having a flow path formed therein to be able to operate in conjunction with.

The drain case is provided with an inlet pipe for receiving the wash water from the water tank and a drain pipe for guiding the wash water to the outside, and a cylindrical filter installation part is provided on the front side of the drain case, and a drain pump is provided on one side of the drain case. It is installed. Therefore, according to the operation of the drain pump, the wash water is sucked through the inlet pipe, passes through the filter member, and the foreign matter contained in the wash water is filtered and then discharged to the outside of the housing through the drain pipe.

In addition, a drain pump is installed at one side of the drain case, and a pump fixer is installed at the other side, and a screw thread formed on the front side of the drain case and a screw thread formed inside the pump fixer are coupled to fix the drain case to the washing machine.

At this time, the rubber packing is assembled between the drain case and the pump fixer for dust between the drain case and the pump fixer.

However, the dustproof part coupling structure of the conventional washing machine causes mutual friction in the process of coupling the pump fixer and the rubber packing, and deformation and deformation of the rubber packing occur, which causes assembly failure. There were problems such as loosening and release due to vibration or incomplete fastening.

The present invention has been made in order to solve the above problems, an object of the present invention is to provide a washing machine that can form a tooth shape on the fixing cap of the washing machine drain pump, to improve the coupling force with the dustproof member.

In order to achieve the above object, the present invention provides a drainage case forming an external appearance of the drainage pump, an impeller provided inside the drainage case, a pump motor providing a driving force to the impeller, and a foreign substance introduced into the drainage case. In the washing machine comprising a drain filter for filtering the filter, a dustproof member is provided on one side of the drain case, the fixing case is provided to fix the drain case to the washing machine, the fixing protrusion formed in the contact portion with the dustproof member And a cap.

The adhesion protrusion is characterized in that it is formed in the form of a tooth.

The close contact protrusion is engaged with the anti-vibration member, characterized in that the entry inclined portion is formed to facilitate the entry to the fixing direction of the fixing cap.

The close contact protrusion is characterized in that the projection jaw is formed in the direction in which the fixing cap is released.

The entry angle of the close contact protrusion is variable according to the thickness of the dustproof member, and is characterized in that it is formed to 45 degrees or less.

In addition, the main body; A drain pump provided in the main body; A drain case forming an exterior of the drain pump; An anti-vibration member provided on one side of the drain case to be fixed to the main body; And, Washing machine comprising a; cap formed with a contact protrusion of the tooth shape in the contact portion with the dust-proof member.

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

1 is a perspective view schematically showing an internal structure of a washing machine according to the present invention, Figure 2 is an exploded perspective view schematically showing a washing machine drainage device according to the present invention.

As shown in FIG. 1, the washing machine 1 according to the present invention includes a case 3 forming an external appearance, a drum-shaped tank 2 installed in the case 3 to contain wash water, and a water tank. (2) Rotating inside the rotatable tub 4 and a plurality of dehydration holes (4a) formed on the surface, the drive to rotate the rotating tub (4) to wash, rinse, and dehydration It comprises a motor 5, a water supply device 7 for supplying detergent and wash water into the water tank 2, and a drainage device 10 for draining the wash water to the outside.

The front of the case (3) is provided with a door (6) for opening and closing the open front of the water tank (2) and the rotating tank (4), through the door (6) to put the laundry to be washed, or to complete the laundry I can take it out.

On the inner circumferential surface of the rotary tub 4, a plurality of lifters 4b for lifting the laundry from the lower portion of the rotary tub 4 to the top are arranged and arranged at regular intervals.

The water supply device 7 is located in the upper part of the case 3, a water supply hose 7a for receiving the wash water from an external water source, and a detergent box for mixing the detergent with the wash water to flow into the water tank 2 ( 7b).

That is, when the door 6 is opened and laundry is put into the rotary tub 4, and the washing machine 1 is operated, the washing water is supplied to the water tank 2 through the water supply device 7, and The laundry was lifted upward by the rotation and washed while falling downward.

The drainage device 10 includes drain hoses 11a and 11b and a drain pump 20 for discharging the wash water contained in the water tank 2 to the outside of the case 3.

The drain pump 20 forms an exterior and is provided inside the drain case 40 having a space in which the wash water can flow and a rear side of the drain case 40 forcibly discharging the wash water of the water tank 2 to the outside. Impeller (not shown), the pump motor 30 for driving the impeller, and a drain filter for removing the foreign matter contained in the wash water flowing into the drain case 40 is provided detachably ( Not shown).

Figure 3 is a perspective view schematically showing a cap for fixing the formed protrusion according to the present invention, Figure 4 is a perspective view schematically showing a combined state of the drain case and the fixing cap of the washing machine according to the present invention.

3 and 4, the drain pump 20 of the washing machine 1 according to the present invention includes a drain case 40, a pump motor 30, a dustproof member 60, and a drain case 40. It includes a fixing cap 50 is installed on the front).

A cylindrical opening 40a is formed on the front surface of the drain case 40 to allow insertion and withdrawal of the drain filter, and to fix the drain case 40 to the washing machine 1 case 3. 50 is provided, the inside is formed in a hollow so that the wash water can flow, the pump motor 30 is installed at the rear.

A thread 41 is formed on the outer circumferential surface of the opening 40a of the drain case 40, and is coupled to the thread 51 formed inside the cap 50 for fixing.

In addition, an inlet 44 is formed at the side of the drain case 40 to allow the wash water to flow therein, and at the rear of the drain case 40, the discharge part 42 to discharge the wash water of the drain case 40 to the pump motor 30. Is formed, the upper air hole 43 is formed to prevent the performance of the drain pump 20 is lowered by the air introduced with the wash water. That is, the air in the drain case 40 is discharged to the outside of the drain case 40 through the air hole 43.

The fixing cap 50 is formed in a cylindrical shape so as to be fastened to the front of the drain case 40, and a screw thread 51 that can be engaged with a screw thread 41 formed on the front outer circumferential surface of the drain case 40 is formed therein, so that the drain case 40 is fixed to the washing machine (1) case (3).

The dustproof member 60 provided between the fixing cap 50 and the drainage case 40 reduces the vibration generated from the pump motor 30 to the washing machine 1 case 3, Is formed.

The fixing cap 50 and the dustproof member 60 are in close contact with each other by tightening the fixing cap 50 to fix the drainage case 40. In this case, the fixing cap 50 is in contact with the dustproof member 60. The contact protrusion 52 is formed in the opposite direction to the loosening with respect to the surface.

The close contact protrusion 52 includes an entry inclined portion 52a and a protruding jaw 52b. The inclined protrusion 52a is formed to facilitate entry into the locking direction of the fixing cap 50 and is easy to assemble. The protruding jaw 52b formed to protrude in a direction in which the fixing cap 50 is released can be prevented from being loosened by the elasticity of the dustproof member 60 and the locking of the protruding jaw 52b.

Here, the angle (a) of the inclined portion 52a of the contact protrusion 52 is variable according to the thickness of the dustproof member 60, and preferably formed to be 45 degrees or less.

Therefore, when assembling, the contact area with the dustproof member 60 is small, so assembling is easy, and when the release force is applied, it is not easily released due to the elasticity of the dustproof member 60 and the locking of the protruding jaw 52b. To prevent.

As described above, the present invention having the configuration as described above forms a tooth shape in the fixing cap of the washing machine drainage pump, improves the bonding force with the dustproof member, and prevents separation by vibration or incomplete assembly of the product, The effect of facilitating assembly can be achieved.

Claims (6)

In a washing machine comprising a drain case forming an external appearance of the drain pump, an impeller provided inside the drain case, a pump motor for providing a driving force to the impeller, and a drain filter for filtering foreign substances introduced into the drain case. , A dustproof member is provided at one side of the drain case, and is provided to fix the drain case to the washing machine, and a washing cap comprising a fixing cap having a close contact with a contact portion with the dustproof member. The method of claim 1, Washing machine, characterized in that the contact protrusion is formed in the form of a tooth. The method of claim 1, The close contact protrusion is engaged with the anti-vibration member, the washing machine, characterized in that the entry inclination is formed so as to easily enter the fixed direction of the cap for fixing. The method of claim 1, The contact protrusion is a washing machine, characterized in that the projection jaw is formed in the direction in which the fixing cap is released. The method of claim 1, The contact angle of the contact protrusion is variable according to the thickness of the dustproof member, characterized in that formed in less than 45 degrees. main body; A drain pump provided in the main body; A drain case forming an exterior of the drain pump; An anti-vibration member provided on one side of the drain case to be fixed to the main body; And, Washing machine comprising a; cap formed with a contact protrusion of the tooth shape in the contact portion with the dustproof member.

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