KR0117443Y1 - Damper structure for the washing machine - Google Patents

Abstract

The present invention relates to a vibration damper for a washing machine.

The present invention is an oil seal (10) to be installed in the insertion portion of the shaft (15) of the damper trauma (11) to prevent the oil inside the damper trauma (11), the inner tube 12 and the shaft ( 15) and the piston 16, and the spring A (13) and B (14) is mounted and the damper trauma (11) filled with the buffer oil, the oil passage (19) for the flow of oil is formed and the damper trauma ( 11) the inner tube 12 and the vibration damper 9 mounted inside the hook rod 6 are mounted so that the shaft 15 moves upwards as if the water tank 2 of the single-chamber washing machine was suspended on the upper end of the washing machine. Spring B (14), which cushions when a load is applied on the shaft (15), such as when the spring A (13) and the damping damper (9), which are cushioned when pulled, are mounted on the lower part of the dewatering motor of a two-chamber washing machine. When the vibration damper 9 is mounted on the rod 61 of the hook rod 6 or the lower part of the dehydration motor, the shaft 15 directly coupled to the rod 61 or the lower part of the dehydration motor, the one side of the shaft 15 Shaft 15 at the end When the piston 16, the vibration damper 9, which is formed integrally with the spring A 13 and the spring B 14, is used as the dustproof member of the one-type washing machine hanger rod 6, the vibration damper 9 It relates to a vibration damper for a washing machine, characterized in that consisting of a reservoir connection member 17 for connecting to the reservoir (2).

Description

Damper structure for washing machine

1 is a cross-sectional view schematically showing a one-type washing machine mounted with a hanger rod having a conventional buffer structure.

2 is a cross-sectional view schematically showing a two-chamber washing machine equipped with a dehydration tank vibration damper having a conventional buffer structure.

3 is a cross-sectional perspective view schematically showing a buffer structure of a conventional hanger rod.

4 is an exploded cross-sectional perspective view schematically showing a conventional dehydration tank vibration damper.

5 is a cross-sectional perspective view schematically showing a vibration damper according to the present invention.

* Explanation of symbols for main parts of the drawings

1: washing tank 2: water tank

3: pulsator 4: trauma

5: hook rod hanging jaw 6: hook rod

7: dehydration tank 8: dehydration tank

9: dust damper 10: oil seal

11: damper trauma 12: inner tube

13: Spring A 14: Spring B

15 axis 16: piston

17: reservoir connection member 18: shaft insertion hole

19: oil passage 21: washing tank

61: rod 62: appearance

63: spring 64: disc

91: spring 92: appearance

93: fixed bundle 101: screw part A

102: threaded portion B 103: O-ring

121: cover

The present invention relates to an anti-vibration damper used in a washing machine, and more particularly, to an anti-vibration damper for a washing machine that can be used in common in a one-chamber washing machine and a two-chamber washing machine.

Currently widely used washing machines can be divided into vortex type, agitated type and drum type according to the washing method, and vortex type washing machines can be roughly classified into two types, one tank washing machine and two tank washing machine.

One tank washing machine can perform both washing and dehydration in one water tank (2), and for this purpose, the water tank (2) is fixed to the inside of the outer box (4) of the washing machine by a suspension rod (6). Washing process can be performed by the rotation of the pulsator (3) which is rotatably fixed with respect to the), and in the reservoir (2) a plurality of water holes are formed on the side wall separately from the reservoir (2) It is equipped with one washing tank (1) to dehydrate the laundry by rotation is configured to perform the dehydration process. These pulsator (3) and the washing tank (1) receives the rotational force of the electric motor and the electric motor fixed to the outer lower surface of the water storage tank (2) to convert the rotational force of the small torque of the high speed of the electric motor into the rotational force of the large torque of the low It is connected to the main shaft of the reduction gear to decelerate so that the complete washing can be performed by rotating only the pulsator (3) in the washing process and the washing tank (1) and pulsator (3) in the dehydration process as the electric motor rotates. It is.

The one-type washing machine of this configuration is configured to wash and dehydrate in one water storage tank (2), so that the volume of the entire washing machine is greatly reduced, and the electric motor and the reduction gear are suspended at the lower end of the water storage tank (2). Although there is an advantage that vibration and noise are greatly reduced, only one electric motor and a reduction gear connected to it are used for the whole rotation, such as forward rotation, stoppage, reverse rotation, and rotation for a predetermined time in one direction during dehydration. Since various rotational forces necessary for washing are provided, in order to control the rotation of the electric motor in various ways, it is not possible to perform sufficient washing using only a simple switch and a timer. Circuitry, which increases the price of the product itself. This, and also the production process, such as suspending the entire electric motor and a reduction gear such as the suspended water storage tank (2) inside the washing machine trauma 4 productivity less demanding.

In addition, the two tank type, the washing machine forms a single tube consisting of two separate tanks, pulsator (3) in the inner lower end of the washing tank 21, and the side wall in the dehydration tank (8) The dehydrator (7) formed with a plurality of water outlets is rotatably fixed, and the electric motor and the reduction gear for rotating the pulsator (3) and the dehydrator (7) are the tubes and the trauma (4). It is mounted directly on the lower base of the washing machine to be fixed is configured to transmit the rotational force by the shaft.

Therefore, the two-screw washing machine is equipped with various electric appliances such as two electric motors and reduction gears and a condenser required to drive them in one washing machine, so that each electric motor can be completely washed even if only a limited number of rotations are performed. Since the washing machine can be controlled by a combination of simple mechanical switches and timers, which are relatively inexpensive, they can be easily repaired and maintained, inexpensive, and the production process is relatively simple. Parts that provide mechanical rotation, such as and reduction gears, are directly fixed to the lower base, so that vibrations and noise generated by their rotation are directly transmitted to the outside through the floor. In order to compensate for the above disadvantages, a vibration damper 9 was mounted between the dehydration motor and the lower base of the outer case 4 of the washing machine.

The damper for preventing vibration is attached to the hook rod 6 of the one-chamber washing machine and the lower part of the dewatering motor of the two-chamber washing machine.

The anti-vibration damper 9 for the vibration of the dehydration tank has a structure in which a spring is inserted into the cylindrical rubber pipe to reduce the anti-vibration effect of the rubber itself by the wear of the rubber, and also reduce the frictional force with the spring, thereby reducing the vibration of the dehydration tank. There was a disadvantage of not absorbing enough.

Therefore, the present invention uses the conventional two-chamber washing machine, and when the dehydration administration is performed, the vibration generated in the dehydration bucket due to the uneven input of laundry or other factors radiates to the outside of the washing machine so that the whole washing machine vibrates and the noise accordingly. It is an object of the present invention to provide an anti-vibration damper (9) capable of absorbing the vibration generated by the rotation of the dehydration container during the dehydration and thus preventing the entire washing machine from vibrating and the noise generated accordingly. .

In addition, the present invention is a vibration generated by the rotation of the pulsator (3) or the washing tank 1 when performing the washing stroke using a single tank washing machine or the vibration generated by the rotation of the washing tank (1) when performing the dehydrating stroke and this It is an object of the present invention to provide a vibration damper (9) which is mounted on the dust-proof hanger rod (6) to prevent the noise.

The present invention having this purpose is a damper damper with a damper outer box 11, inner tube 12, spring A (13), spring B (14), shaft (15), piston (16) and reservoir connection member (17). (9) to constitute.

Hereinafter, the configuration will be described in detail with reference to the accompanying drawings.

As shown in FIG. 5, the vibration damper 9 for a washing machine according to the present invention is mounted on the shaft 15 insertion portion of the damper trauma 11 so that the oil inside the damper trauma 11 does not leak. An oil seal 10, an inner tube 12, a shaft 15, a piston 16, a spring A 13 and a B 14 mounted therein, and a damper trauma 11 filled with buffer oil. The oil passage 19 for the flow of oil is formed to install the inner tube 12 and the vibration damper 9 mounted on the inside of the damper trauma 11 to the hook rod 6 to hold the water tank of a one-type washing machine ( 2) When the shaft 15 is pulled upward, as when hanging on the upper end of the washing machine, the spring A 13 and the vibration damper 9, which act as a shock absorber, are mounted on the lower part of the dewatering motor of the two-chamber washing machine. (15) When the spring B (14) and the vibration damper (9), which act as a buffer when the load is loaded on the upper part, are mounted on the rod 61 of the hook rod 6 or the lower part of the dehydration motor, the rod 61 or dewatering motor Shaft 15 directly coupled to the portion, the piston 16, the vibration damper is formed integrally with the shaft 15 at one end of the shaft 15 and mounted between the spring A 13 and the spring B 14 When the (9) is used as a dustproof member of the one-type washing machine hanger rod (6) is characterized in that it consists of a reservoir connection member (17) for connecting the vibration damper (9) to the reservoir (2).

The oil seal 10 is made of synthetic rubber such as urethane rubber having good elasticity and wear resistance, and serves to prevent oil filled inside the damper trauma 11 from leaking to the outside. The abutting surface may be teflon coated to prevent abrasion due to friction with the shaft 15.

Teflon coating as described above is well known in the art, and a Teflon coating of appropriate thickness for preventing abrasion may be formed at the contact with the spring 31.

The damper trauma 11 is made of a cylindrical material made of metal or synthetic resin having good strength, and includes a spring A 13, B 14, and an inner tube 34 therein, and is filled with a buffer oil. One side end of the damper outer case 11 is formed with a threaded portion A (101) can be screwed to the reservoir connecting member 17 when the anti-vibration damper (9) is attached to the hook rod (6). In addition, the other end is opened and the cover 121 is inserted and sealed.

The inner tube 12 is made of a cylindrical material made of metal or synthetic resin, which is also of good strength, and has one end open and the cover 121 integrally formed at the other end. An oil passage 19 is formed at an upper portion of the cover 121 to form a flow passage of oil by the reciprocating motion of the piston 16.

The spring A (13) is installed by the vibration damper (9) on the hook rod (6) to prevent the vibration of the water tank (2) of the one-type washing machine, the water tank by the rotation of the pulsator (3) or the washing tank ( It is a compression spring that can be easily purchased on the market.

The spring B (14) is installed on the lower part of the dehydration motor to damp the vibration of the dehydration tank (8) when the vibration damper (9) is used for vibration damping of the dehydration tank (8). It can be a compression spring.

The shaft 15 has a hook rod 6 connected when the vibration damper 9 is used for dust protection of a single tank washing machine, and supports one side of the motor when it is used for dustproofing of the dehydrating tank 8 of a two tank washing machine. At the end, the piston 16 is integrally formed and inserted between the spring A 13 and the spring B 14 to actuate the spring for each purpose.

The piston 16 is formed integrally with the shaft 15, and an O-ring is attached to the outer circumferential surface end thereof to enhance the piston action. The piston 16 is mounted between the spring A 13 and the spring B 14 to allow the spring A 13 to act when the anti-vibration damper 9 is used in the single tank washing machine, and when used in the two tank washing machine. The spring B (14) is able to operate, and receives the resistance by the viscosity of the oil filled inside the damper trauma (11) serves to increase the buffer effect.

The reservoir connection member 17 is a connection member for attaching the anti-vibration damper 9 to the bottom of the reservoir 2 when the vibration damper 9 is used as a shock absorbing member of the 1-type washing machine dust-proof hanger rod 6. A shaft insertion hole is formed at one end and a threaded portion B 102 for screwing the reservoir connecting member 17 to the threaded portion A 101 of the damper outer box 11 is formed at the other end.

Based on the above-described configuration and description will be described in detail with reference to the drawings the operation according to an embodiment of the present invention.

The operation of the vibration damper 9 for a washing machine according to the present invention will be described according to the type of the washing machine.

When the dustproof damper 9 for a washing machine according to the present invention is used for dust protection of a tank type washing machine, the shaft 15 of the dustproof damper 9 is connected to one end of the rod 61 of the hanger rod 6 and the other end is Fix to the top of the washing machine outer box (4). The vibration damper 9 mounted as described above cushions the vibration generated by the rotation of the pulsator 3 or the washing tank 1 by the buffering action of the spring A 13 and the piston 16 reciprocating the oil. Therefore, it is possible to prevent the vibration and noise emitted to the outside of the washing machine.

In addition, when the anti-vibration damper 9 is used for dust removal of the dehydration tank 8 of the two-chamber washing machine, the lower part of the anti-vibration damper 9 is fixed to the lower base of the washing machine and the dehydration motor is mounted on the shaft 15. The vibration damper 9 mounted as described above buffers the vibration generated by the rotation of the dehydration tank by the buffering action of the spring B 14 and the piston 16 reciprocating the oil, thereby releasing vibration and noise to the outside of the washing machine. Can be prevented.

The present invention as described above is because the two tank type washing machine buffers the vibration generated by the rotation of the dehydration tank (7) when performing the dehydration stroke in the anti-vibration damper (9) below the dehydration motor to the outside of the thdmad washing machine by the vibration and vibration The effect of preventing divergence is provided.

In addition, the present invention is the vibration of the hanger rod (6) to the vibration caused by the rotation of the washing tank 1 and the pulsator (3) during the washing stroke of the single tank washing machine or the rotation of the washing tank (1) when performing the dehydration stroke Since the damper 9 is cushioned, the vibration and the noise caused by the vibration are prevented from being emitted to the outside.

Although the present invention has been described in detail only with respect to the embodiments described above, it can be changed or modified within the spirit and scope of the present invention will be apparent to those skilled in the art to which the present invention belongs and such changes or modifications are registered utility model attached It should be limited by the claims.

Claims (1)

An oil seal (10) mounted in the insertion portion of the shaft (15) of the damper trauma (11) to prevent oil from leaking inside the damper trauma (11), the inner tube (12) and the shaft (15) therein; A damper trauma 11, which is fitted with a piston 16 and springs A 13 and B 14, is filled with buffering oil, and an oil passage 19 for flowing oil is formed to form the damper trauma 11. The inner tube 12 and the vibration damper 9 mounted therein are mounted on the hook rod 6 to cushion the pump 15 when the shaft 15 is pulled upward, as when the water tank 2 of the one-type washing machine is suspended on the upper end of the washing machine. Spring B (13), vibration damper, which acts as a shock absorber when a load is loaded on the shaft (15), such as when the spring A (13) and the vibration damper (9) acting on the lower part of the dewatering motor of a two-chamber washing machine. (9) a shaft (15) which is directly coupled to the rod (61) or the lower part of the dehydration motor when the rod (61) of the hook rod (6) or the lower part of the dehydration motor is attached, Integrally with (15) When the piston 16, the vibration damper 9, which is formed and mounted between the spring A 13 and the spring B 14, is used as the dustproof member of the one-type washing machine hanger rod 6, the vibration damper 9 is stored in the water tank ( 2) Dust damper for washing machine, characterized in that consisting of a reservoir connection member 17 for connecting to.