KR100268286B1 - Link for drain valve of washing machine - Google Patents

Abstract

PURPOSE: A link for a drain valve is provided to easily connect an operating cord by improving combining structure between the link and the operating cord and to prevent a twisting of the operating string by rotating a connecting tip. CONSTITUTION: A link(50) for a drain valve of a washing machine comprises an inserting groove(53) to be inserted an operating cord(61); a sill portion(54) in a started portion of the inserting groove not to separate a connecting tip(62); a hanging portion(56) in the middle of the inserting groove not to deviate the operating cord; and an opening(56) in the upper part of the inserting groove to easily insert the operating cord. The connecting tip is freely rotated by marginally forming an accepted space of the connecting tip. Thereby, the operating cord is easily inserted in the inserting groove. Moreover, a break of the operating cord is prevented by easily loosening though a twisting is generated.

Description

Link for drain valve of washing machine

The present invention relates to a washing machine, and more particularly, to a structure of a link coupled to one side of the drain valve to transfer the power of the drain motor to the drain valve.

In general, a washing machine performs washing strokes, rinsing strokes, and dehydrating strokes with mechanical force. A device for washing using friction between laundry and washing water and a washing tank by putting washing water and laundry together in a washing tank and stirring them. to be.

The washing machine having such a function is provided with a water tank in which washing water is filled in the main body case. The washing tank is rotatably configured in the water tank, and a pulsator is formed in the center of the washing tank to form the washing water flow. In addition, the bottom of the water tank and the washing tank is provided with a drive unit having a motor that is rotated forward and backward to selectively transmit the driving force of the motor to the pulsator and the washing tank. The driving unit rotates the pulsator forward and backward in the washing stroke to perform the washing stroke, and after the washing stroke is completed, the washing tank rotates at a high speed to perform the dehydrating stroke.

On the other hand, such a washing machine is formed in the lower side of the water tank for washing and draining the wash water after the dehydration stroke to the outside. In addition, a drain valve is installed at the drain port to open and close the drain port, and a drain hose for guiding the wash water drained to the outside is coupled to the lower side of the drain valve.

1 and 2, the drain valve 10 is provided with a bellows (12) that is flexible to block or open the flow path (11) on the inside, the bellows inside the bellows (12) Operating rod 13 is installed to stretch. The actuating rod 13 has one end coupled with the inner end of the bellows 12, the other end extending outward of the drain valve cover 14, and the bell is formed by linear reciprocating motion of the actuating rod 13. The rose 12 is stretched or stretched. In addition, the support spring 15 is installed on the outer circumferential surface of the operating rod 13 to block the flow passage 11 while keeping the bellows 12 extended.

In addition, a link 16 for linearly reciprocating the operating rod 13 is coupled to an end of the operating rod 13 extending outward of the cover 14, and one end of the link 16 has an operating rod 13. And the other end is coupled to the operation line 17 extending from the drain motor (not shown) for operating the drain valve 10.

That is, the operating rod 13 of the drain valve 10 is pulled by the operation line 17 by the driving of the drain motor, thereby making a linear movement with the link (16).

On the other hand, the operation line 17 is extended from the drainage motor is coupled to the link 16 is coupled to the connecting tip 18 to form a locking structure at its end, for this purpose, the operation line 17 to the link 16 ), The fitting groove 16a to which the operation line 17 is fitted, and the accommodating part 16b in which the connection tip 18 is accommodated are formed.

Here, the fitting groove 16a is formed to be narrow and long so as to communicate with one end in the opening groove 16c formed at the center of the link 16. And, the receiving portion 16b is formed in the longitudinal direction on the lower side of the fitting groove (16a) is to engage the connecting tip (18). That is, the fitting groove (16a) is formed so that the width is slightly larger than or equal to the thickness of the operation line 17 is to take the connecting tip 18 coupled to the end of the operation line (17).

When connecting the link 16 and the operation line 17 configured as described above, the user inserts the operation line 17 into the fitting groove while pulling the connection tip 18 of the operation line into the opening groove (16c) and pull it out. Then, the connecting tip 18 is fitted to the receiving portion 16b. Therefore, when the drainage motor is operated and the operation line 17 is pulled, the link 16 and the operating rod 13 coupled to the link are pulled to open the drain valve 10.

However, in the conventional configuration for the drain valve link 16 configured as described above, the outer peripheral surface of the connection tip 18 is caught in the accommodation portion 16b as the width of the accommodation portion 16b in which the connection tip 18 is accommodated is narrow. When the operation line 17 is pulled by the driving of the drainage motor, the operation line 17 is twisted. Therefore, when the operation of the drainage motor is repeated a number of times, there was a problem that the operation line 17 is broken. That is, twisting occurs when the operation line 17 is pulled out. At this time, since the connection tip 18 is caught in the receiving portion 16b and the rotation is restricted, the neck of the operation line 17 and the connection tip 18 are broken. You lose.

In addition, the conventional link 16 has a problem in that the user inserts the operation line 17 as the fitting groove 16a for fitting the operation line 17 is elongated in the longitudinal direction.

The present invention is to solve such a problem, an object of the present invention is to improve the coupling structure of the link and the operation line to facilitate the connection of the operation line, and to enable the connection tip to rotate the operation line during operation of the drain motor It is to provide a link for the drain valve of the washing machine to prevent the twist.

1 is a cross-sectional view showing the structure of a conventional drain valve and link.

FIG. 2 is a cross-sectional view of part II-II 'of FIG. 1.

3 is a sectional view showing a schematic internal configuration of a washing machine to which a link according to the present invention is applied.

4 is a bottom view of the water tank shown in FIG. 3.

5 is a cross-sectional view showing the structure of the drain valve and the link according to the present invention.

6 is a perspective view showing the structure of a link according to the present invention.

7 is a cross-sectional view taken along the line VII-VII 'of FIG. 6.

FIG. 8 is a detailed view of part “A” of FIG. 6.

Explanation of symbols on the main parts of the drawings

20: main body case, 21: water tank, 22: washing tank,

23: pulsator, 30: drive, 31: motor,

32: clutch, 40: drain valve, 42: flow path,

43: bellows, 44: cover, 45: operating rod,

50: link, 52: open groove, 53: fitting groove,

54: jaw portion, 55: opening portion, 56: locking portion,

60: drain motor, 61: operating line, 62: connecting tip.

The present invention for achieving the above object, a drain port formed in the lower side of the water tank, a drain valve installed in the drain port to open and close it, a drain motor installed on the lower side of the water tank to operate the drain valve, and the drain An operation line extending from a motor and drawn when the drain motor is driven; a link connected between the operation line and the drain valve to open and close the drain valve by movement of the operation line; In the washing machine having a connection tip provided at the end of the operation line to be connected,

A fitting groove formed at one end of the link to be fitted with the operation line, a jaw portion bent at a portion at which the fitting groove starts so that the connection tip is not separated, and the operation line is fitted to the fitting groove A locking portion formed in the middle of the fitting groove so as not to fall out, and an opening formed at an upper side of the fitting groove to facilitate the fitting of the operation line, and the movement of the connection tip when the operation line is fitted into the fitting groove. Characterized in that the space in which the connection tip is accommodated freely formed larger than the connection tip.

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

3 and 4, the washing machine to which the present invention is applied is provided with a cylindrical water tank 21 whose upper side is opened so that the washing water can be filled inside the main body case 20 forming the exterior. . The inside of the water tank 21 is rotatably set up, the washing tank 22 is provided with a plurality of dehydration holes perforated on the wall surface. And the bottom of the washing tank 22 is provided with a pulsator 23 for forward and reverse rotation to form the washing water flow.

A driving unit 30 for driving the washing tank 22 and the pulsator 23 is provided below the water tank 21. This drive part 30 is comprised from the motor 31 which generate | occur | produces power, and the clutch 32 which rotates the pulsator 23 and the washing tank 22 simultaneously or selectively by the rotational force of the motor 31. As shown in FIG. Here, a belt 33 for mediating power transmission is provided between the motor 31 and the clutch 32.

In addition, a drain port 21a for draining the washing water after the washing stroke and the dehydrating stroke to the outside is formed below the water tank 21. In addition, the drain port 21a is provided with a drain valve 40 for opening and closing the drain, and the drain hose 41 is coupled to the lower side of the drain valve 40 for guiding the drained wash water to the outside.

Then, the drainage motor 60 for opening and closing the drain valve 40 is provided on the side of the drive unit 30 and the drain valve 40, the drain motor 60 between the drain motor 60 and the drain valve 40. Link 50 is installed to open the drain valve 40 by the drive of. At this time, the link 50 is coupled to the clutch lever 34 extended from the clutch 32 to control the power transmission of the washing tank 22 by the movement of the link 50 according to the driving of the drainage motor 60. It becomes possible.

5 and 6, the drain valve 40 has a 90 ° bent flow passage 42 formed therein, and a cylindrical bellows 43 which can be stretched to block or open the flow passage 42. ) Is installed. The left end of the bellows 43 is opened, and the edge thereof is fixed to the opening of the drain valve 40 by a cover 44, and a closing part 43a is formed at the right end to open the flow path 42 of the drain valve. Will be blocked.

Inside the bellows 43, an operating rod 45 for stretching the bellows 43 is installed. One end of the operating rod 45 is engaged with the inner sealing portion 43a of the bellows 43, and the other end of the operating rod 45 extends outward of the cover 44 by a linear reciprocating motion of the operating rod 45. The bellows 43 is stretched or stretched. In addition, a support spring 46 is installed on the outer circumferential surface of the operating rod 45 to block the flow passage 42 while keeping the bellows 43 extended.

In addition, a link 50 for linearly reciprocating the operating rod 45 is coupled to an end of the operating rod 45 extending out of the cover 44. For this purpose, the link 50 is connected to the end of the operating rod 45. The latching jaw 45a that is caught by the groove 51 of the is formed. Then, the other end of the link 50 is coupled to the operation line 61 extending from the drain motor 60 for operating the drain valve 40. Therefore, the operating rod 45 of the drain valve 40 is pulled by the operation line 61 by the drive of the drain motor 60, it will be a linear movement with the link (50).

The link 50 is formed with an opening groove 52 into which the clutch lever 34 is fitted at the center thereof, and the left and right sides of the opening groove 52 are engaged with the operation line 61 and the operating rod 45, respectively. The structure is formed.

The operation line 61 is coupled to the link 50 is coupled to the connecting tip 62 to form a locking structure at its end, for this purpose, the operation line 61 to be connected to the operation line 61 to the link 50 ( A fitting groove 53 into which 61 is inserted is formed. In this case, the portion in which the fitting groove 53 is formed is formed in a lower stage than the portion in which the opening groove 52 is formed, and a narrow groove is formed in the upper surface and the central portion of the side surface.

The start portion of the fitting groove 53 is formed by extending the jaw portion 54 is bent by a predetermined length in the downward direction, so that the connection tip 62 of the operation line is not easily pulled out to the upper side. Therefore, the link 50 according to the present invention can take the connecting tip 62 even if the length of the fitting groove 53 is not formed long. In addition, the space in which the connection tip 62 is accommodated is open so that the movement of the connection tip 62 is free, so that even if a twist occurs in the process of pulling the operation line 61, it is easily released. In the present embodiment, the periphery of the connection tip 62 is opened, but the space in which the connection tip 62 is accommodated is larger than the connection tip 62 so that the movement of the connection tip 62 is free. In addition, an opening 55 is formed at an upper side of the fitting groove 53 to communicate with the inside of the opening groove 52 so as to easily fit the connection tip 62.

In addition, referring to Figures 7 and 8, in the middle of the fitting groove 53 in which the operation line 61 is fitted, the engaging portion 56 of the projection so that the operation line 61 is not separated from the fitting groove 53. Is formed. The locking portion 56 protrudes from the opposite sides of the fitting groove 53 toward the center of the fitting groove 53, and is easily fitted when the operating string 61 is fitted, but once the operating string 61 is inserted. When the fitting groove 53 is fitted, it does not fall in the reverse direction. In other words, the locking portion 56 has an inclined portion 56a formed on the upper side where the operating string 61 enters, so that the operating string 61 can be easily fitted, but the locking structure 56 is formed in the reverse direction.

Next, the coupling method and operation of the link according to the present invention configured as described above will be described.

When the user inserts the operation line 61 into the fitting groove 53, the operating tip 61 is positioned in the fitting groove 53 while pushing the connection tip 62 into the opening 55, and then slightly lower in the front. When pulled toward, the operation line 61 is fitted in the correct position beyond the locking portion 56 formed in the middle of the fitting groove (53). At this time, the connection tip 62 is freely movable because of the margin around, and the operation line 61 is caught by the locking portion 56 so as not to fall in the reverse direction.

Therefore, when the operation line 61 is pulled by the driving of the drainage motor 60, even if a twist occurs in the operation line 61, since the movement of the connection tip 62 is free, the operation line 61 is easily released. The problem of breaking is prevented.

As described above in detail, the drain valve link of the washing machine according to the present invention is formed with a fitting groove into which the operation line of the drain motor is fitted at one end, and the connection tip of the operation line is not detached from the starting portion of the fitting groove. The jaw portion is formed so that the locking portion is formed so that the operation line does not fall in the middle of the fitting groove, and the opening portion is formed on the upper side of the fitting groove to facilitate the insertion of the operation line. In addition, in the space in which the connection tip is accommodated, the connection tip was allowed to rotate freely. Therefore, the user is not only easy to insert the action line in the fitting groove, there is an advantage that the breakage of the action line is prevented to be easily released even if a twist occurs in the process of pulling the action line.

Claims (2)

A drain hole formed at the bottom of the water tank, a drain valve installed at the drain hole to open and close it, a drain motor installed at the bottom of the water tank to operate the drain valve, extending from the drain motor and being pulled when the drain motor is driven. Loss operation line, the link is connected between the operation line and the drain valve to open and close the drain valve by the movement of the operation line, the connection provided at the end of the operation line to connect the operation line to the link In a washing machine having a tip, A fitting groove formed at one end of the link to be fitted with the operation line, a jaw portion bent at a portion at which the fitting groove starts so as not to be detached from the connection tip, and a state in which the operation line is fitted into the fitting groove A locking portion formed in the middle of the fitting groove so as not to fall out of the fitting groove, and an opening formed at an upper side of the fitting groove so as to easily fit the operation line, and the movement of the connection tip when the operation line is fitted into the fitting groove. The link for the drain valve of the washing machine, characterized in that the space for receiving the connection tip is formed larger than the connection tip so as to be free. The method of claim 1, The hook portion is a drain valve link for a washing machine, characterized in that the inclined portion is formed on the side to enter the operation line to facilitate the operation line.