KR100353032B1 - Drainage motor device of washing machine - Google Patents

Abstract

The present invention relates to a drainage motor device of a washing machine, and an object thereof is to provide a drainage motor device of a washing machine which can be fixed in a state in which the operation line is pulled as a simple structure inside the draining motor device, and provided on one side of the lower part of the water tank. Drain hose, a drain valve intervening in the drain hose, an operation line connected to the drain valve to open and close the drain valve, a pulley provided to wind the operation line, a drain motor provided to rotate the pulley, A locking section provided on the operation line to be positioned between the drain valves and a sliding bar is formed so that the locking bar can slide, and a locking section bent at the sliding section is formed to allow the locking bar to be seated inside the sliding section. To guide the operation line extending through the sliding section to the section side to the outside It is provided within the rod engaging member, configured that a solenoid is provided having a holding plate so that the locking rod to the inside of the engaging section can be pushed in a sliding interval.

Description

Drainage motor device of washing machine

The present invention relates to a drainage motor device of a washing machine, and more particularly, to improve the structure to maintain the pulled state of the operation line as a simple structure in the interior of the drainage motor device for opening and closing the drain valve to the operation line connected to the drain valve It relates to a drainage motor device of a washing machine.

In general, a washing machine performs washing and dehydration by rotating a stirrer and a washing tank by using a rotational force of a driving motor. A washing tank is provided in which washing water is filled in a main body, and a washing tank is rotatably installed therein. In the center of the washing tank is provided with a stirrer to form the washing water flow, and the water tank and the bottom of the washing tank is provided with a drive motor and a clutch that is forward and reverse rotation to selectively drive the stirrer and the washing tank. As a result, the driving motor and the clutch rotate the agitator forward and reverse at the washing stroke to perform the washing stroke due to the friction between the laundry and the washing water and the washing tank.

1 is a view showing the bottom of the water tank of the conventional washing machine, Figure 2 is a view showing the internal configuration of the conventional drainage motor device. As shown in the drawing, a driving motor 11 which is a power source for washing and dehydration is installed on the bottom of the water tank 10, and the driving motor 11 extends into the water tank 10 to wash the washing tank (not shown) and the agitator. A clutch 12 for selectively driving a driving stroke (not shown) and switching between a washing stroke and a dewatering stroke is connected and installed.

On the other hand, one side of the bottom of the water tank 10 is connected to the drainage hose 13 for draining the washing water after the washing stroke and dehydration stroke to the outside, a drain valve 20 is installed in the middle of the drain hose 13 The drain valve 20 is provided with a drain motor device 30 for manipulating it.

In addition, the drain motor device 30 is connected to the drain valve 20 via the operation line 31 via the link 21 to open and close the drain valve 20 by pulling or releasing the operation line 31. As the inside, a part of the operation line 31 is composed of a pulley 49 wound around and a drain motor 60 for rotating the pulley 49. In addition, a reduction gear unit 40 including a plurality of gears is installed between the drainage motor 60 and the pulley 49 therein, and the reduction gear unit 40 is a drive side reduction gear 41 connected to the drainage motor 60. And a plurality of driven side reduction gears 42 connected to the pulley 49, and a connecting gear 43 is installed between the driving side reduction gear 41 and the driven side reduction gear 42 to connect them or Separate. The connecting gear 43 is installed to reciprocate in the drive shaft 46 that fixes the drive-side reduction gear 41 by the solenoid 44 and the spring 45, so that power is not applied to the solenoid 44. When it is separated from the driven side reduction gear 42 by the spring 45, when the power is applied to the solenoid 44 is connected to the driven side reduction gear 42. In addition, the outer side of the driven shaft 47 supporting the rotation of the pulley 49, the sensing unit 50 is installed to detect the completion timing of the operation string 31.

Referring to the operation of the drainage motor device 30 configured as described above are as follows. First, during washing, the connecting gear 43 is in a state in which the driving side reduction gear 41 and the driven side reduction gear 42 are separated, so that the operation line 31 is released by the elastic force of the drain valve 20. As a result, the drain valve 20 is closed. The transition from the washing administration to the dehydration administration is as follows. First, the power is applied to the solenoid 44 to operate the connecting gear 43 to connect the driving side reduction gear 41 and the driven side reduction gear 42 of the reduction gear unit 40. After the drain motor 60 is rotated, the rotational force of the drain motor 60 is decelerated while passing through the reduction gear unit 40 is transmitted to the pulley 49 is rotated the pulley 49, the operation line 31 is Have a cold. As the operation line 31 is wound in this manner, the drain valve 20 is opened, and the sensing unit 50 detects the wound state of the operation line 31 to detect the driving force of the drain motor 60 to allow the drain valve 20 to be opened. To keep it open. When the dehydration stroke is completed or the power failure occurs, the drive gear reduction gear 41 and the driven gear reduction gear 42 are separated by the return gear connection to the original state by the spring 45, and the operation line 31 is drained. The return to the original by the elastic force of the valve 20 is closed the drain valve 20.

However, since the conventional drainage motor device of the washing machine does not have a separate device for keeping the operation string pulled during the drainage operation, it is necessary to continuously supply power to the drainage motor from the start to the end of the drainage operation. Since a lot of load is generated in the motor, the life of the drainage motor is shortened and the power consumption is large.

The present invention is to solve the above problems, an object of the present invention is to provide a drainage motor device of the washing machine that can be fixed in a state in which the operation line is pulled as a simple structure inside the drainage motor device.

1 is a view showing the tank bottom of the conventional washing machine.

2 is a view showing the internal configuration of a conventional drainage motor device.

3 is a cross-sectional view of the washing machine according to the present invention.

Figure 4 is a cross-sectional view showing a drain valve of the washing machine according to the present invention.

5 is a cross-sectional view showing the internal configuration of the drainage motor apparatus according to the present invention.

6 is a cross-sectional view showing an operating state of the drainage motor device shown in FIG.

7 is an exploded perspective view of the locking member according to the present invention.

FIG. 8 is a cross-sectional view taken along line AA of FIG. 7.

Explanation of symbols on the main parts of the drawings

120: drain valve 230: drain motor device 231: operation line

232: catching rod 240: outer case 250: pulley

251: reduction gear 260: drainage motor 270: locking member

271: sliding section 272: locking section 274: guide rod

275: detection unit 280: locking plate 283: solenoid

The present invention for achieving the above object, the drain hose provided on the lower side of the water tank, the drain valve interposed in the middle of the drain hose, the operation line connected to the drain valve to open and close the drain valve, the A washing machine provided with a pulley provided to wind an action line and a drain motor to rotate the pulley, wherein the catching bar provided on the action line to be positioned between the pulley and the drain valve may be slid. A sliding section is formed on one side of the inner side, and a locking section bent from the sliding section is formed on the inner side of the sliding section to allow the locking bar to be seated, and an operation line extending through the sliding section toward the locking section is pulled out. A locking member provided with a guide rod for guiding the inside of the locking section To it characterized in that the solenoid comprises a holding plate provided to push the locking rod to the sliding section.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention; 3 is a cross-sectional view of the washing machine according to the present invention, Figure 4 is a cross-sectional view showing a drain valve of the washing machine according to the present invention. 5 is a cross-sectional view showing the internal configuration of the drainage motor apparatus according to the present invention, Figure 6 is a cross-sectional view showing an operating state of the drainage motor device shown in FIG. In addition, Figure 7 is an exploded perspective view of the engaging member according to the present invention, Figure 8 is a cross-sectional view showing a line A-A of FIG.

In the washing machine according to the present invention, a main body 110 forming an appearance is provided, and a cylindrical water tank 111 having an upper side opened therein is installed therein so that washing water can be filled therein. And the inside of the water tank 111 is installed rotatably installed, the washing tank 112 is provided with a plurality of dehydration holes perforated on the wall, the bottom of the washing tank 112, the stirrer to form a washing water by rotating forward and reverse ( 113) is provided.

On the other hand, the lower side of the water tank 111 is provided with a drive motor 114 and a clutch 115 for driving the washing tank 112 and the stirrer 113, the drive motor 114 is capable of forward, reverse rotation, The rotation speed is provided to be variable, and the clutch 115 is provided to rotate the stirrer 113 and the washing tub 112 simultaneously or selectively by the rotational force of the driving motor 114. A belt 116 is installed between the drive motor 114 and the clutch 115 to mediate power transmission.

In addition, a drain hose 117 is connected to the outer lower side of the water tank 111 to drain the washing water after washing and dehydrating, and the free end of the drain hose 117 extends to the outside of the main body 110. It extends, and the middle of the drain valve 120 is installed. The drain hose 117 of the portion in which the drain valve 120 is installed is provided with a horizontal flow passage 121 bent to communicate horizontally between the pipes which are upright and upright. One side of the horizontal passage 121 is opened to the outside to cover the cover 122, the inside of the cover 122 to block or open the drain hole 123 for communicating with the horizontal passage 121 and the upper side Bellows 124 is installed to be able to. The bellows 124 is a cylindrical rubber tube provided with a plurality of corrugations so as to be elastic, and at one end thereof, an opening and closing portion 125 closed to open and close the drain hole 123 communicating with the upper side of the horizontal flow passage 121 is provided. It is provided with the other end is provided with an operating rod 126 for reciprocating back and forth into the opening. One end of the operating rod 126 is engaged with the inner opening and closing portion 125 of the bellows 124, and the other end thereof extends outward through the cover 122 having a central opening. In addition, a support spring 127 is provided on the outside of the operating rod 126, one end of the support spring 127 is supported on the inside of the cover 122 and the other end to the opening and closing portion 125 of the bellows 124 When the drain valve 120 is not in operation, the support spring 127 is installed to block the drain hole 123 by keeping the bellows 124 extended and the operating rod 126 is moved outward. Later, it is prepared to restore it.

In addition, one end of the link 128 for linearly reciprocating the operating rod 126 is coupled to an end of the operating rod 126 extending out of the cover 122, and the drain valve 120 is connected to the other end of the link 128. The operation line 231 of the drainage motor device 230 for operating) is fixed. Therefore, the operating rod 126 of the drain valve 120 is pulled by the operation line 231 by the drive of the drain motor device 230, thereby causing a linear movement with the link 128.

In order to operate the drain valve 120, a drainage motor device 230, which is a characteristic component of the present invention, is provided at an outer lower side of the water tank 111. The drain motor device 230 is connected to the drain valve 120 via the operation line 231, and the drain motor device 230 is connected to one end of the operation line 231, and the drain valve 120 is connected to the other end. ) Is connected and installed, the link 128 is installed in the middle of the operation line 231, the pulley 250 and one side of the operation line 231 is wound, drainage for rotating the pulley 250 A motor 260 and a plurality of reduction gear parts 251 interposed between the drainage motor 260 and the pulley 250, and the operation line 231 is provided between the pulley 250 and the external link 128. A locking member 270 and a locking rod 232 are provided to maintain the pulled state. This will be described in detail as follows.

First, an outer case 240 is formed to form an exterior and accommodate various components therein. One side of the outer case 240 is provided with a moving hole 241 to move the operation line 231, the operation line 231 is installed to the inside of the moving hole 241 is provided with a circular rod The locking bar 232 is provided to be larger than the moving hole 241 so as not to be separated from the outside of the case. The engaging rod 232 is coupled to the operation line 231 in the front and rear at approximately the middle of the longitudinal direction, one side is extended to the outside of the case is connected to the drain valve 120 through the link 128, the other The side is inserted into the locking member 270.

On the other hand, the locking member 270 is provided with a sliding section 271 that is open to slide the insertion rod 232 to the side facing the moving hole 241, the inner side of the sliding section 271 extending inwardly The end portion is bent at a right angle to the lower end is provided with a locking section 272 so that the locking bar 232 can be inserted and fixed. An inclined groove 279 is provided to be inclined in the middle of the corner of the sliding section 271 and the locking section 272 to be bent at a right angle to move the operation line 231. In addition, a sensing unit 275 capable of recognizing the insertion of the locking bar 232 is provided at an inner side of the locking section 272, and a locking plate 280 provided upward at both sides of the bottom of the locking section 272. And a pair of solenoids 283 are installed to be connected to the solenoid shaft 282 so as to reciprocate the stopping plate 280 upward and downward. In addition, the outside of the solenoid shaft 282 is provided with a spring 281 so as to be spaced apart between the engaging plate 280 and the upper surface of the solenoid 283, this solenoid 283 is usually by the spring 281 The solenoid 283 is spaced apart between the upper surface and the locking plate 280, and when power is applied to the solenoid 283, the locking plate 280 moves downward while winning the force of the spring 281. That is, the locking bar 232 inserted into the locking section 272 is provided to be inserted or separated by the locking plate 280.

Further, a withdrawal groove 273 is provided on the rear side of the locking section 272. The lead-out groove 273 communicates with approximately the center of the locking section 272, and is closed upwardly, opened downwardly, and a guide rod 274 is formed at an inner side thereof. The guide rod 274 is provided on the lower side of the sliding section 271, and is provided on the upper side rather than the bottom of the locking section 272, the outer rod as a circular rod that is moved across the movement line 231, On the lower side, a pulley 250 connected to the drainage motor 260 is installed to pull or release the operation line 231. That is, the operation line 231 is moved across the guide rod 274, because the guide rod 274 is provided below the sliding section 271, the locking rod 232 is downward due to the power of the drain motor 260 While moving to the inside of the locking section 272, at this time, the sensing unit 275 operates the solenoid 283 to move the locking plate 280 downward to insert the both ends of the locking rod 232 into the locking section 272 At the same time, the operation of the drain motor 260 is stopped.

In addition, a pulley 250 is provided below the locking member 270, and the pulley 250 is positioned to the right side of the guide rod 274. That is, since the pulley 250 is installed closer to the side where the operation line 231 is introduced and the operation line 231 is introduced than the guide rod 274, the operation line 231 is “V” where the middle of the incoming and outgoing side is bent. "It is installed in a shape. The pulley 250 is provided to wind or unwind the operation line 231, is connected to the reduction gear unit 251 made of a combination of a plurality of gears, the reduction gear unit 251 is coupled to the drainage motor 260 Will be.

Referring to the operation of the drainage motor device 230 of the washing machine according to the present invention configured as described above are as follows.

First, during the washing stroke, the power of the drive motor 114 rotates the stirrer 113 forward and backward through the clutch 115 to form a water flow to wash the washing stroke due to friction between the laundry and the wash water and the washing tank 112. Will perform. When the washing cycle is finished after the washing cycle, the drain motor device 230 opens the drain valve 120. That is, the drain motor 260 of the drain motor device 230 is rotated, and the rotation of the drain motor 260 is decelerated by the reduction gear unit 251 and transmitted to the pulley 250. The pulley 250 is wound around the operation line 231 and the locking rod 232 provided in the operation line 231 is moved into the locking section 272 after moving the sliding section 271. At this time, the locking plate 280 provided in the locking section 272 is supported by the upper side due to the force of the spring 281, because the pulling force of the drain motor 260 is applied to the locking bar 232, the locking bar 232 Silver is pressed into the locking section 272 while pressing the spring (281). And since the operation line 231 is inserted into the inclined groove 279, the locking bar 232 is not pulled upward. In addition, the sensing unit 275 provided in the locking section 272 detects the insertion of the locking bar 232. Due to the detection of the sensing unit 275, the solenoid 283 is operated, whereby the locking plate 280 and the upper surface of the solenoid 283 which are in close contact with each other by the compression of the spring 281 is maintained in close contact. . At the same time, the drain motor 260 is stopped. That is, after detecting the mounting of the locking section 272 of the locking bar 232, the drain motor 260 stops and the solenoid 283 maintains its operating state.

Subsequently, when the drain valve 120 is closed after the dehydration stroke or when the power supply of the washing machine is not made, the stopping plate 280 is returned to its original state by the spring 281 and the locking bar 232 is caught by the locking section 272. Pushed out). At this time, since the power of the drain motor 260 is not transmitted to the locking bar 232, the locking bar 232 is easily restored by the force of the spring 281 restoring the locking plate 280. And the locking rod 232 exiting the locking section 272 is pulled toward the drain valve 120 by the elastic restoring force of the support spring 127 of the drain valve 120 is returned to the original state.

As described in detail above, the drainage motor apparatus of the washing machine according to the present invention is a simple structure that is provided with a locking member in the interior of the case, the locking rod is formed on the operating line to be fixed and detached therein, the operation line You can keep the state pulled. Therefore, when driving the drain motor to open the drain valve is to operate the drain motor only until the locking rod is fixed to the inside of the locking member. This reduces the load on the drainage motor by reducing the driving time of the drainage motor, and reduces the power consumption of the drainage motor, thereby improving the reliability of the washing machine.

Claims (4)

A drain hose provided on one side of the water tank, a drain valve interposed in the middle of the drain hose, an operation line connected to the drain valve to open and close the drain valve, a pulley provided to wind the operation line, the pulley In the washing machine having a drainage motor to rotate the, A locking rod provided in the operation line so as to be positioned between the pulley and the drain valve, a sliding section is formed on one side of the inner side so that the locking rod can slide, and the sliding section can be seated inside the sliding section. The locking section is formed in the engaging section is bent and the engaging member is provided with a guide rod for guiding the operation line extending through the sliding section toward the locking section side to the outside, the locking bar to the sliding section inside the locking section A drain motor apparatus for a washing machine, characterized in that a solenoid having a locking plate is provided to be pushed out. The method of claim 1, The sliding section and the catching section are provided at right angles to each other so that the catching rods are not seated and detached from each other. Inwardly perpendicular to each other, the operation line is pulled toward the drain valve through the sliding section so that the catching bar is separated from the sliding section. Drainage motor device of the washing machine, characterized in that the inclined groove is provided to prevent it. The method of claim 1, The waste motor of the washing machine, characterized in that the sensing unit is provided on the inner side of the locking section to detect the mounting of the locking rod to stop the operation of the drain motor. The method of claim 1, A drainage motor device for a washing machine, wherein a spring is provided between the stopping plate and the solenoid so as to return the stopping plate to its original state when the power of the solenoid is cut off.