KR0175630B1 - A washing machine - Google Patents

Abstract

The present invention relates to a washing machine, an object of the present invention is to improve the washing efficiency by reducing the twist of the laundry during the washing and rinsing stroke by improving the rotary blade rotating forward and reverse.

In the washing machine according to the present invention, an impeller 440 for forcibly discharging the washing water is integrally installed inside the rotary blade 400, and a multistage elevating rod 430 extending by the washing water is discharged. .

Therefore, during the washing and rinsing stroke, the multi-stage elevating bar 430 rotates in an extended state, thereby preventing twisting of laundry, thereby improving washing efficiency.

Description

washer

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

2 is a cross-sectional view schematically showing the internal configuration of the washing machine according to the present invention.

3 is an enlarged cross-sectional view of a rotary blade according to the present invention.

4 is a cross-sectional view showing a shortened state of the rotary blade lifting rod according to the present invention.

* Explanation of symbols for main parts of the drawings

10: body 30: washing tank

50: rotation axis 60: drive unit

400: rotary blade 430: lifting rod

440 impeller 442 through hole

450: check valve 461: locking jaw

471: departure prevention jaw 481: descending guide jaw

The present invention relates to a washing machine, and more particularly, to a washing machine to suppress the twist of the laundry by providing a multi-stage elevating rod extending upwards on the center of the rotary blade.

In general, the washing machine is configured to program the washing, rinsing, drainage, and dehydration of the washing machine control part in advance to the microcomputer so that the user can selectively control the driving of the washing machine, and the laundry is automatically washed.

As shown in FIG. 1, the washing machine includes a water tank 20 for freshening the wash water inside the main body 10. And inside the water tank 20, the washing tank 30 is rotatably installed, and the rotary blade 40 is installed at the inner bottom of the washing tank 30 so as to be able to rotate forward and backward. The rotary blade 40 turbulent flow of the water flow at the time of washing and rinsing, while stirring the laundry, a plurality of wings 42 are formed radially on the upper surface of the body 41 to face the direction of rotation It is provided, and a protruding rod 43 is formed at the center of the body 41 to protrude upward to form a random flow.

And the bottom of the main body 10 is provided with a drive unit 60 for rotating the rotary blade 40 and the washing tub 30, the drive unit 60 is a motor 61, a motor 61 for generating a rotational force The power transmission device 62 is provided to selectively transmit the rotational force to the rotary blade 40 and the washing tub 30 by interlocking the rotational force of the belt 63. At this time, the power transmission device 62 transmits the rotational force to the rotary blade 40 or the washing tub 30 via the rotating shaft 50 as a medium.

On the other hand, one side of the water tank 20 is provided with a drain hose 11 for discharging the wash water to the outside to the outside of the main body 10.

In the general washing machine configured as described above, the laundry and the washing water are put into the washing tank 30 and the water tank 20, and then the power is applied to the motor 61 to reversely rotate the rotary blade 40 so that the laundry rotates the rotary blade 40. The friction force between the blades 42 causes the normal and reverse rotation as wash water. In addition, the laundry that rotates forward and backward is washed while rubbing against the inner wall of the washing tank 30 by washing water flow.

When the washing is completed, the washing tank 30 rotates at a high speed to dehydrate the laundry, and the washing is completed. Such a stroke is programmed in the microcomputer.

On the other hand, the rotary blade 40 that is rotated forward and backward is formed with a plurality of wings 42 radially on the upper surface of the body 41 to form a washing water flow, protruding rod 43 protruding upward in the center thereof Since the fixed structure is fixed, the flow of water flows to one side due to the forward and reverse rotational movement of the rotary blade 40 during washing and rinsing strokes, and the laundry is entangled with each other.

That is, due to the speed difference of the water flow generated by the rotary blade 40 in the forward and reverse rotation movement, the twisting and tangling of the laundry occurs badly due to the reverse direction of the water flow, causing a problem that the washing performance is reduced.

The present invention is to solve this problem, an object of the present invention is to install a lifting bar consisting of a multi-stage in the center of the rotary blade to extend the lifting bar during washing and rinsing stroke to suppress the twist of the laundry and dehydration It is to provide a washing machine to shorten and facilitate this.

In order to achieve the above object, the present invention provides a washing machine having a main body provided with a washing tank therein and a rotating blade rotating forward and backward to generate water flow in the washing tank, wherein one end thereof is coupled to a through hole formed in the rotating wing. Ordinary installation rods, one end of which is coupled to the other end of the installation rods, and when the wash water flows into the inside, the normal lifting rods which are axially extended by water pressure and shortened by their own weight when discharged, are installed inside the installation rods and into the lifting rods. And an impeller for pumping the wash water.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows the overall configuration of the washing machine according to the present invention, Figure 3 shows a multi-stage lifting bar which is a characteristic element of the present invention. (Washing machine according to the present invention is the same as the conventional components except for the structure of the rotary blade, the same components will be described briefly using the same name and the same reference numerals.)

As shown in the drawing, the washing machine according to the present invention includes a water tank 20 for desalination of washing water in the body 10, and a washing tank 30 is rotatably installed in the water tank 20, and the washing tank 30 is provided. In the bottom of the inner and reverse rotation is possible and the wing 420 is formed on the top surface of the body 410 is provided with a rotary wing 400.

In addition, a motor 61 and a power transmission device 62 are installed at the bottom of the main body 10 as a driving unit 60 for rotating the rotary blade 400 and the washing tub 30. The motor 61 and the power transmission device are provided. 62 is connected by a belt 63. In the power transmission device 62, the rotational force is transmitted to the rotary blade 400 or the washing tub 30 via the rotation shaft 50, and reference numeral 11 denotes a drain hose.

On the other hand, as a characteristic element of the present invention, the rotary blade 400 is introduced into the washing water during washing and rinsing stroke elongated, and in the dehydration stroke is a tubular multi-stage present in a shortened state by its own weight The lifting bar 430 is installed. The multi-stage elevating rod 430 is a kind of telescopic pipe that can be extended and shortened in the axial direction. One end of the elevating rod 430 is opened to allow the washing water to flow in, and the other end of the lifting rod 430 is discharged to the outside. It is closed to prevent it.

This will be described in more detail with reference to FIGS. 3 and 4 as follows.

A through hole 442 is formed in the center of the body 410 of the rotary blade 400 having a plurality of wing parts 420 formed on the upper surface thereof, and one end of a conventional mounting rod 431 is inserted into the through hole 442. Combined. That is, the installation rod 431 and the rotary blade 400 is integrally coupled.

And the multi-stage elevating bar 430, as described above, it is made possible to stretch in the axial direction, one end of the multi-stage elevating bar 430 is inserted into the other end of the mounting rod 431.

The multi-stage elevating bar 430 is inserted into the other end of the installation rod 431, the other end is the first elevating bar 432 protruding upward, and the other end of the first elevating bar 432 protruding upward One end thereof is also inserted and coupled, and the other end thereof is coupled to the other end of the second lifting bar 433 protruding upward, and the second lifting bar 433 protruding upward, and the other end protruding upward. And it consists of a third elevating bar (434) located at the top.

At this time, only the other end of the third lifting bar 434 is closed, and both ends of the installation bar 431 and the first and second lifting bars 432 and 433 are open. In addition, the inner circumferential surface and the outer circumferential surface between the stage and the stage of each multi-stage elevating bar 430 are spaced apart by a predetermined interval, so that washing water is discharged to the outside through this gap.

And the other end of each of the installation rod 431 and the first, second lifting rods (432, 433) is formed with engaging jaws (461, 462, 463 bent inward, respectively), the first end of which one end is inserted into the other end of each adjacent bar, Departure preventing jaws 471, 472, 473 are formed on the outer circumferential surfaces of the lower ends of the second and third lifting bars 432, 433, 434.

Therefore, when the multi-level lifting bar 430 is extended, the engaging jaw (461, 462, 463) and the separation prevention jaw (471, 472, 473) is engaged with each other is configured to prevent the separation of the lifting bar (432, 433, 434).

On the other hand, as described above, the mounting rod 431 is coupled to the bottom end of the multi-stage elevating bar 430 is coupled to the through-hole 442 formed in the center of the rotary blade 400 integrally with the rotary blade 400 Although it is comprised, the impeller 440 is comprised integrally in the installation rod 431 inside.

That is, in the center of the impeller 440 is formed a shaft coupling hole 441 is coupled to the rotary shaft 50 associated with the power transmission device 62, of the wing 443 pumping the upper portion of the wash water during rotation The end is integrally coupled to the inner circumferential surface of the mounting rod 431.

A check valve 450 is formed at an upper portion of the impeller 440 of the mounting rod 431. The check valve 450 has a central portion thereof, and the washing water pumped according to the one-way rotation of the impeller 440 is raised. Guide to the inside of the steel bar (430). When the impeller 440 rotates in the reverse direction, the washing water in the elevating rod 430 is discharged in reverse, which is suppressed by the check valve 450.

This structure is explained in more detail as follows.

Installation rod 431 of the multi-stage elevating bar 430 is integrally coupled with the rotary blade 400, and the impeller 440 for sending the washing water to the inside is integrally coupled.

Therefore, the rotation shaft 50 associated with the power transmission device 62 is coupled to the shaft coupling hole 441 of the impeller 440, so that the installation rod 431 rotating blade (Rotator 431) during the rotation of the impeller 440 by the rotation shaft 50 400 is configured to rotate, which rotation is reversed by the power train 62. At this time, during the washing stroke or the rinsing stroke, a part of the washing water is pumped to the upper part when the impeller 440 rotates in one direction and flows into the lifting bar 430 of the multi-stage. The washing water introduced by the valve 450 is configured to be prevented from coming out.

On the other hand, reference numerals 481, 482, 483 are the lower guide jaw formed on the upper outer peripheral surface of each of the first elevating bar 432, the second elevating bar 433, the third elevating bar 434. Since the lifting bar 430 is configured in multiple stages, there is a concern that when it is shortened, the lifting bar 430 is completely inserted into and separated from the adjacent lifting bar, and each of the lowering guide jaws 481, 482, 483 is in contact with the upper end of the adjacent lifting bar. To prevent them.

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

First, laundry and washing water are put into the washing tank 30 and the water tank 20. When power is applied to the motor 61, the reverse rotational power thereof is changed to a speed suitable for washing by the power transmission device 62, and the rotating shaft 50 Rotate the rotary blade 400 through the). Accordingly, the rotary blade 400 that receives power is rotated forward and backward to generate water flow, and the laundry is washed by the water flow.

At this time, the laundry is entangled and twisted due to the flow of water, multi-level lifting bar 430 installed in the center of the rotary blade 400 is maintained in an extended state to suppress the tangling of the laundry.

Referring to the operation of the multi-stage elevating bar 430 with reference to the third, the attached 4 as follows. (FIG. 4 shows the lifting rod just before washing, and FIG. 3 shows the lifting rod state during washing and rinsing.)

Prior to the washing administration, as shown in FIG. 4, the multistage lifting bar 430 which is free to stretch is shortened by the load of the laundry put on the upper side thereof. When the wash water is added in this state, since the upper part of the third elevating rod 434 of the multistage elevating rod 430 is closed, air is filled therein, and the rotary blade 400 is rotated in one direction by the rotating shaft 50. When rotated to the laundry was located on the upper shaft of the rotary blade 400, the laundry is slightly raised because the wing 420 of the rotary blade 400 to stir the laundry.

The rotation of the rotary blade 400 is because the impeller 440 coupled to the rotary shaft 50 is integrally formed and rotates inside the installation rod 431 integrally coupled to the center of the rotary blade 400.

Therefore, the impeller 440 and the rotary blade 400 are rotated forward and backward integrally by the rotation shaft 50, a part of the wash water during the forward rotation of the impeller 440 is a check valve 450 branched by its transmission power Opening is introduced into the multi-level lifting bar 430, part of the introduced wash water is re-extracted through the combined gap of each of the lifting bar 430, but because the amount of washing water flowing in more than the multi-stage The washing water is blown into the lifting bar 430.

On the other hand, when the impeller 440 is rotated in the reverse direction to try to pump the washing water present in the multi-stage elevating rod 430, which is blocked by the check valve 450, even if the reverse stage multi-stage elevating rod 430 The wash water remains inside.

As shown in FIG. 3 by repeating this process, a large amount of wash water flows into the stretchable multi-stage lifting bar 430, and the first, second, and third lifting bars 432, 433, and 434 respectively protrude and elevate to finally extend. Will remain intact.

At this time, when the lifting bar (432, 433, 434) is protruded, the engaging jaw (461, 462, 463) and the separation prevention jaw (471, 472, 473) is engaged to prevent the installation rod 431 and the lifting bar (432, 433, 434) to be separated.

As a result, during the washing stroke or the rinsing stroke in which the washing water is present in the washing tank 30, the impeller 440 and the rotating blade 400 rotate by the rotating shaft 50, so that a part of the washing water is multistage. It is introduced into the steel bar 430 to maintain the multi-level lifting bar 430 in an extended state.

Therefore, the multi-stage elevating rod 430 is present in the center of the washing tank 30 to prevent the twist of the laundry to be rotated forward and backward by the washing water flow.

On the other hand, when the washing stroke and rinsing stroke of the washing machine is completed, the washing water is discharged to the outside through the drain hose (11). At this time, since the multi-stage elevating bar 430 is not configured to be sealed, the wash water in the inside of the through-inserted gap is also escaped, and the multi-stage elevating bar 430 is shown in FIG. It is shortened. Therefore, during the dehydration stroke, the multi-stage elevating bar 430 is present in a shortened state.

As described in detail above, the washing machine according to the present invention is integrally installed with an impeller for forcibly discharging the washing water inside the rotary blade, and installed a multi-stage elevating rod that is extended by the discharged washing water.

Therefore, during the washing and rinsing stroke, the multi-stage lifting bar rotates in an extended state, thereby preventing twisting of laundry, thereby improving washing efficiency.

Claims (3)

In the washing machine having a main body 10 provided with a washing tank 30 therein, and a rotary blade 400 rotating forward and backward to generate water flow in the washing tank 30, the penetrating formed in the rotary blade 400 Ordinary mounting rod 431, one end of which is coupled to the hole 442, one end thereof is coupled to the other end of the mounting rod 431, when washing water flows into the axial direction by water pressure and is discharged by its own weight. Washing machine characterized in that it comprises a conventional lifting bar 430, the impeller 440 is installed in the installation rod 431 to pump the wash water into the lifting bar (430). The washing rod of claim 1, wherein the lifting rods 430 are formed in multiple stages, and gaps through which washing water flows out are formed between each of the stages and the stages, and a top end of the lifting rods 430 is closed. . The check valve 450 of claim 1 or 2, wherein the installation rod 431 is installed above the impeller 440 to suppress the discharge of the washing water introduced into the washing machine lifting bar 430. ) Is provided.