KR950008384Y1 - Opening-shutting device for valve - Google Patents

Abstract

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Description

Drain valve switch

1 is a cross-sectional view showing a drain valve opening and closing device of a conventional washing machine.

Figure 2 is an exploded perspective view of the distribution valve opening and closing device according to the present invention.

Figure 3 is a longitudinal sectional view showing a coupled state of the drain valve opening and closing device according to the present invention.

Figure 4 is a plan view of the drain valve opening and closing device according to the present invention.

Figure 5a is a plan view showing the open completion state of the drain valve opening and closing device according to the present invention.

Figure 5 is a plan view showing the original position of the drain valve opening and closing device according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: drive means 2: accommodation means

3: left and right straight means 4: equilibrium holding part

5: elastic return means 60: top plate

61: stop bar 80: base

110: turning drive

The present invention relates to a drain valve opening and closing device, and more particularly, to a drain valve opening and closing device to prevent the impact sound when opening and closing the valve when opening and closing the valve and drainage and water supply.

1 is a cross-sectional view showing a drain valve and an opening and closing device for opening and closing the same in a general washing machine.

Although not shown is a state in which the drain valve opening and closing device is installed in the washing machine is not limited to this, and is used in various products such as vending machines, boilers, of course, it is usually used as a control mechanism of the motor solenoid.

More specifically, the conventional drain valve opening and closing device is installed in communication in the lower place of the inner tank of the washing machine 100, the drain hose 300 for guiding the drainage of the wash water in the tank 200, and the inside of the drain hose 300 A valve 310 of a bellows type (not shown) installed to open and shut off the drain hose 300, and installed at one side thereof in communication with the valve 310 to selectively generate a magnetic force to generate a valve 310. It consists of a solenoid 320 to operate the opening and closing of the).

In the conventional drain valve opening and closing device, the valve 310 is operated when draining or supplying water, that is, opening and closing noise of the valve 310 is caused.

More specifically, the impact sound and the brake noise of the solenoid 320 for opening and closing the valve 310 were induced.

In order to solve the above problems, the motor drain type valve opening and closing device has been proposed to slow down the opening and closing of the motor drain by a newly adopted synchronous motor to reduce the impact sound and the brake sound. Contact points for applying power and opening / closing in a short circuit are required, and another structure is complicated, and another problem that productivity decreases due to the assembly and manufacturing process is avoided.

The present invention has been made in view of the above-mentioned conventional technical drawbacks, and has a fundamental purpose to provide a drain valve opening and closing device for preventing an impact sound from occurring when the drain valve is opened and shut off.

Another object of the present invention is to provide a drain valve opening and closing device that improves productivity by simplifying the structure and unnecessary contact points for opening and closing the drain valve opening and closing device.

The present invention to achieve the above object is installed in close proximity to the drain valve provided in the water tank lower place inside the washing machine, the upper plate and the drive motor is mounted on the drive motor driven by the power supply on the upper side, the lower side of the upper plate drive motor A driving means connected with the driving force of the driving motor to rotate and drive the receiving power, a receiving means accommodating and installing the driving means and accommodating only within a predetermined track when the driving means is pivoted, and communicating with one side of the driving means. Left and right straight means for converting the rotational movement of the drive means to the left and right straight movements, a balance holding portion for maintaining the balance by horizontally supporting both sides of the left and right straight means, and the left and right straight means is carried on one side of the balance holding portion Opening and closing of the drain valve including the elastic return means for repositioning by the elastic restoring force and the base on which they are seated It is achieved by providing value.

Hereinafter, preferred embodiments of the present invention for achieving the above object will be described in detail by the accompanying drawings.

Figure 2 is an exploded perspective view showing the drain valve opening and closing device according to the present invention and Figure 3 is a longitudinal sectional view showing the overall assembly state.

As shown in the drawing, the drain valve opening and closing device is connected to the driving motor 70 at a lower side of the upper plate 60 on which the driving motor 70 driven by receiving power is installed. Drive means 1 for turning and driving by receiving the driving force of the 70 is installed, the receiving means for accommodating the drive means (1) so that the drive means is pivoting only within a predetermined track when turning And left and right linear means (3) for interlocking with the driving means (1) and receiving a rotational force of the driving means (1) and converting them into left and right straight motions, and a horizontal balance supporting both sides of the left and right straight means (3). Retaining portion 4 and the elastic return means (5) which is supported on one side of the balance holding portion (4) by the elastic restoring force during the forward movement of the left and right straight means (3), and the base 80 is installed It consists of.

The drive means 1 is installed with the drive motor 70 installed downward on the upper plate 60 to transmit the driving force while having a shaft 10 having a gear 11 in a predetermined position, and the shaft 10 Each of the gears 11 is arranged on the upper and lower sides of the gear 11, and the gears 11 of the shaft 10 are respectively arranged on the upper and lower sides of the gear 11, and the pivot driving part 110 rotates at the forward rotation of the shaft 10.

The pivot driving unit 110 has a shaft hole (111a) is formed on the lower side of the gear 11 of the drive means (1) and the lower plate 111 having a second shaft hole (111b) on the other side, and the lower plate 111 A stationary piece 112 'which is installed at regular intervals and has a shaft hole 112a on the same axis as the shaft hole 11a and is installed above the gear 11 of the shaft 10 while one side is inclined on the other side. It is arranged in the second shaft hole (11b) of the lower plate 111 to be positioned between the upper plate 112 and the upper wave 112 and the lower plate 111 having one side is interlocked with the gear 11 of the shaft (10). And the other side is composed of an interlocking gear 113 interlocked with the receiving means.

The accommodating means 2 accommodates and installs the driving means 1 and is engaged with the interlocking gear 113 of the swing driving part 110 to open the upper side to guide the swing driving of the interlocking gear 113. It is composed of a cylindrical receiving gear 20 having a tooth 21.

The left and right linear means (3) is installed on one side of the receiving gear 20 of the base (80) and selectively meshes with the interlocking gear (113) of the swing driving unit (100) and the rotating gear A projection 31 protruding on one side of the 30 and a rectangular guide groove 32 inserted into and supported by the projection 31 to receive the rotational force of the rotation gear 30 and to impart the linear left and right movement motives. It consists of a working rod 33 extending on both sides having.

The rotation gear 30 has an engagement portion 30a that idles while opening the bellows valve at a predetermined time during engagement engagement with the interlocking gear 113 of the swing drive portion 110.

The balance holding part 4 is vertically installed at both sides of the base 80 and has a pair of supporting rods 40 having insertion holes 41 to support the operating rods 33 of the left and right straight means 3 in parallel. It consists of.

The elastic return means (5) is elastically the operating rod 33, one side is coupled to the operating rod 33 of the left and right straight means (3) and the other side of the bellows type is not supported by the valve and tangled to one side. It is composed of an elastic member 50 in place by the restoring force.

The upper plate 60 has a stop bar 61 is projected downward integrally in the lower place to selectively stop the swing drive of the swing drive unit 110.

The operation and effects of the present invention configured as described above will be described.

4 is a plan view of the drain valve opening and closing device according to the present invention.

Initially this state can be said to be a state in which the bellows-type valve (not shown) installed on one side of the operating rod 33 is closed on the drain hose not shown.

That is, this state may be referred to as a washing or rinsing state. At this time, as shown in the drawing, the interlocking gear 113 interlocked with the gear 11 of the shaft 10 is engaged with one side of the receiving gear 20, and the rotating gear 30 is rotated. The guide groove 32 of the operating rod 33 supported by the projection 31 is fixed to one side in a state of supporting the projection 31.

In this state, the bellows-type valve is opened from the drain hose when draining, that is, when the washing or rinsing stroke is completed.

That is, when power is applied to the driving motor 70 of FIG. 3 during automatic opening by the set time adjustment switch or the like, the driving motor 70 operates and the shaft 10 having the gear 11 rotates accordingly.

Therefore, when the shaft 10 rotates, the interlocking gear 113 engaged with the gear 11 is rotated at the receiving gear 20 and the turning drive part 110 is gradually turned clockwise as shown in FIG.

When the annoying turning drive unit 110 gradually rotates in a clockwise direction, that is, the interlocking gear 113 engaged with the gear 21 formed on the inner curved surface of the receiving gear 20 is rotated gradually, and the rotating gear 30 built up on the upper side is rotated. When one side of the pivot driving unit 110 is engaged with the stop bar 61 protruding downward in the lower position of the upper plate 60 is unable to rotate any more. (See Figure 4)

Therefore, at this time, the gear 11 of the shaft 10 and the interlocking gear 113 interlocked thereto rotate to receive the rotational force of the interlocking gear 113 by the receiving gear 20 engaged with the interlocking gear 113. Rotate counterclockwise and the upper side of the interlocking gear 113 meshes with the rotating gear 30 to rotate the rotating gear 30. (See Figures 3 and 4)

Therefore, when the interlocking gear 113 rotates the rotating gear 30 while the swing driving unit 110 is stopped, the protrusion 31 of the rotating gear 30 is inserted into and supported by the rotating gear 300 as the rotating gear 300 rotates. Since the guide groove 32 rotates in the guide groove 32 of the 33, the guide groove 2 formed integrally with the operating rod 33 is used to restore the elastic restoring force of the elastic member 50 provided on the other side according to the rotational force of the rotation gear 30. Overcoming, that is, the elastic member 50 is extended and moved straight to one side.

Therefore, when the rotation gear 30 is gradually rotated so that the engagement portion 30a of the rotation gear 30 coincides with the interlocking gear 113, the rotation gear 30 stops rotation and only the interlocking gear 113 idles. .

In this case, the rotation of the rotating gear 30 is completed, that is, the operating rod 30 is moved to a predetermined position. In this case, the bellows type drain hose installed on the other side of the elastic member 50 is intervened. The time when the interlocking gear 113 idles at the attachment part 30a of the rotation gear 30 may be referred to as a continuous state of drainage.

In this case, the projection 31 of the rotation gear 30 is stopped by being caught on the inclined surface of the stop piece 112 'formed on one side of the swing driving part 110 rotated and stopped by the stop rod 61 of the upper plate. to be. (See Fig. 5a)

When the drainage stroke is completed in this state, the power supply unit cuts off the power supplied to the driving motor 70.

Therefore, when the power source of the driving motor 70 is cut off, the inertia force acting to continue to rotate in the counterclockwise direction acts so that the turning drive unit 110 and the interlocking gear 113 also rotate in the counterclockwise direction. At the same time, the elastic member 50 is extended to the inclined surfaces of the guide groove 32 and the stop piece 112 'of the operating rod 33 by the elastically restoring force of the bellows-type valve and the elastic member 50 on the other side. The projection 31 of the rotating gear 30 that was supported is forcibly pushed out to maintain the initial state, that is, the washing or rinsing stroke state of closing the drain hose.

Therefore, even when closing and closing the drain hose, all the movements are smoothly rotated under the transmission of the gear, so that the problems caused by the impact sound and the brake noise of the solenoid when the valve is opened and closed as in the prior art are actively prevented.

As described above, the present invention blocks the impact sound when the opening and closing of the drain valve, and does not require a separate contact for opening and closing the bellows valve, so it is structurally simple, and thus the reliability of the product can be further improved and the competitiveness with other products can be increased. It is a useful design with the features.

Claims (1)

It is installed close to the drain valve provided on the lower side of the water tank of the washing machine, and is connected to the driving motor under the upper plate 60 on which the driving motor is seated, and the driving force of the driving motor is transmitted to the shaft 10 so as to be integral with the gear ( 11) drive means for driving the receiving gear 20 and the rotating gear 30 with the interlocking gear 113 meshed with the receiving gear; and receiving means for receiving the driving means so as to receive the driving means so as to rotate in a predetermined track; Projection 31 of the engaging portion 30a of the rotating gear 30 rotated by the driving means is installed in the guide groove 32 of the operating rod 33, the left and right straight means for converting the rotational movement into a straight movement ( 3) and a balance holding portion 4 for horizontally supporting the pair of insertion holes 41 of the pair of supporting rods 40 to maintain both sides of the left and right straight means, and on one side of the balance holding portion 4. Is burnt and repositioned by the elastic restoring force during the forward movement of the left and right straight means (3) Returning means (5) to a drain valve opening and closing apparatus comprising a base (80) is seated.