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Drain valve device and method for adjusting swing angle of washing machine and spool pull rod

A technology of swing angle and drain valve, applied in valve device, valve operation/release device, lift valve, etc., can solve the problems of tension rod stress concentration, increased cost, narrow space, etc., to reduce stress concentration, improve service life, Not easy to break effect

Active Publication Date: 2021-11-23
PANASONIC APPLIANCES CHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited space in the application of the drain valve device, for example, in a washing machine, the drain valve device is generally installed at the bottom of the bucket, and the space is narrow. In addition, there is a travel space for the valve core 2. The pull rod cannot be set too long, otherwise the drain valve will be damaged. The use of the device is too limited
However, if R is reduced, the torque generated by the driver's work will become smaller, resulting in an increase in the power requirement of the driver, which will lead to an increase in cost, and may not be able to guarantee the stroke L2 of the spool 2
In addition, when L1, L2 and R are all fixed, Δθ is also fixed, and in the prior art, the change curve of β relative to θ can refer to Figure 5 As shown in the dotted line curve, since the rocker in the prior art operates within a range of less than 180 degrees, the curve only shows a peak, and the subsequent part shows its variation law in a dotted line. When θ=θ1, β= β1, when θ=θ2, β=β2, when θ=θx, β=βmax, it is easier to include θx when choosing θ1 and θ2, which will lead to the situation of β=βmax, so it is easy to cause the tie rod to appear Whitening or fracture due to stress concentration

Method used

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  • Drain valve device and method for adjusting swing angle of washing machine and spool pull rod
  • Drain valve device and method for adjusting swing angle of washing machine and spool pull rod
  • Drain valve device and method for adjusting swing angle of washing machine and spool pull rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a drain valve device, such as image 3 and Figure 4 As shown, it includes a valve body 1, a valve core 2 and a driver 3. The valve body 1 is provided with a valve port 101, and the valve core 2 is arranged in the valve body 1. The valve core 2 includes a seal 21 and a valve core pull rod 22. The seal 21 is fixed on the spool pull rod 22, the spool pull rod 22 includes a core body 221 and a pull rod 222, the output end of the driver 3 is connected to the pull rod 222 through the rocker 4 to drive the spool 2 to move in the axial direction, the swing angle range of the rocker 4 Fixed, the rocker 4 rotates forward to make the valve core 2 open the valve port 101, the rocker 4 reverses to make the valve core 2 close the valve port 101, the driver 3 is biased relative to the valve body 1, and the rotation center O of the rocker 4 is relative to the valve core 2 The center axis M of the center axis M is offset to reduce the swing angle of the pull rod...

Embodiment 2

[0031] In Embodiment 1, although β2' is smaller than βmax, β2' is still relatively close to βmax, and there is a large difference with β3. Therefore, in this embodiment, the driver 3 is deflected by an angle around the rotation center of the rocker 4 After α is fixed, the starting point and the end point of the pulling rod 222 drawn by the rocker 4 are shifted, thereby further reducing the swing angle of the pulling rod 222 relative to the central axis of the valve core 2 . Such as image 3 and Figure 4 shown, driver 3 compared to figure 1 and figure 2 In other words, the angle α is tilted counterclockwise, so that the deflection angle of the driver 3 around the rotation center of the rocker 4 is fixed, and there is no need to replace the driver 3 of a different type.

[0032] Specific to the change of the size of θ in this embodiment, you can refer to Figure 6 , the angle between the rocker 4 and the central axis of the valve core 2 when pulling the pull rod 222 at the...

Embodiment 3

[0038] Considering the limited space in some application occasions, the outlet pipe 12 and the inlet pipe 11 are located on the same side of the valve body 1, and the driver 3 is offset to the same side of the inlet pipe 11 relative to the valve body 1, so that the entire drain valve device can be reduced Occupied space, and the occupied space can be effectively utilized.

[0039] For other content not described in this embodiment, reference may be made to the foregoing embodiments.

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PUM

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Abstract

The invention discloses a drainage valve device, which belongs to the field of valve components and solves the problem that the pull rod is easily damaged in the prior art. The central axis of the core is offset to reduce the swing angle of the pull rod relative to the central axis of the valve core. The invention is mainly used to prevent the swing angle of the pull rod relative to the central axis of the valve core from being too large, so as to improve the service life of the pull rod. The present invention also provides a washing machine using the above-mentioned drain valve device. In addition, the present invention also provides a method for adjusting the swing angle of the pull rod of the valve core of the drain valve device.

Description

technical field [0001] The invention relates to valve components and washing equipment for textiles, in particular to a drain valve device, a washing machine using the drain valve device, and a method for adjusting the swing angle of a pull rod of a valve core. Background technique [0002] Such as figure 1 and figure 2 As shown, there is an existing drainage valve device, which includes a valve body 1, a valve core 2 and a driver 3. The valve body 1 is provided with a valve port 101, and the valve core 2 is arranged in the valve body 1. The valve core 2 includes a seal 21 and The spool pull rod 22 and the seal 21 are fixed on the spool pull rod 22. The spool pull rod 22 includes a core body 221 and a pull rod 222. The output end of the driver 3 is connected to the pull rod 222 through the rocker 4 to drive the spool 2 to move in the axial direction. The swing angle range of the rocking rod 4 is fixed, the forward rotation of the rocking rod 4 makes the valve core 2 open ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/04F16K31/12F16K1/36F16K1/32
CPCF16K1/32F16K1/36F16K31/04F16K31/12
Inventor 方雁平宋凡黄章辉
Owner PANASONIC APPLIANCES CHINA CO LTD