Liquid pumping mechanism for dripping prevention

Abstract

The invention provides a liquid pumping mechanism for dripping prevention. The mechanism comprises a water storage tank, a drawer and a flushing and extracting mechanism, wherein a liquid outlet A isformed in the end, close to the flushing and extracting mechanism, of the drawer; a check valve base is internally provided with a check valve matched with the matched liquid outlet A, the drawer is communicated with the flushing and extracting mechanism through an internal channel of a valve interface module, the exterior of the valve interface module is sleeved with a movable push pin jacket, the end, close to the drawer, of the push pin jacket is provided with a liquid outlet B, one end of the valve interface module is provided with a push rod penetrating through the liquid outlet B, and the end, stretching out of the push pin jacket, of the push rod is provided with a push block; when the drawer is opened, the check valve moves away to not abut against the push block, the check valve resets to block the liquid outlet A, then the liquid outlet A is closed, the push pin jacket moves towards one end of the push block under the pulling action of the drawer to abut against the push block so as to block the liquid outlet B, then the liquid outlet B is closed, and thus a dripping prevention purpose is achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of washing machine dispensers, in particular to an anti-drip liquid pumping mechanism. 【Background technique】 [0002] Existing fully automatic washing machines generally have a detergent dispenser for temporarily storing laundry detergent. The detergent is temporarily stored in the detergent storage box, and is put into the washing tub of the washing machine under the control of a specified program to clean the clothes; the dispenser Generally, the detergent is pre-stored in the detergent storage box first, and when the laundry operation is required, the water is flushed into the detergent storage box and mixed with the pre-stored detergent, and put into the laundry tub for soaking and washing by relying on the siphon effect. Clothes, where the existing dispenser uses a drawer-type pull-out structure, such as figure 1 As shown, when it is necessary to add detergent to the drawer, the drawer needs to be p...

AI Technical Summary

Problems solved by technology

[0002] Existing fully automatic washing machines generally have a detergent dispenser for temporarily storing laundry detergent. The detergent is temporarily stored in the detergent storage box, and is put into the washing tub of the washing machine under the control of a specified program to clean the clothes; the dispenser Generally, the detergent is pre-stored in the detergent storage box first, and when the laundry operation is required, the water is flushed into the detergent storage box and mixed with the pre-stored detergent, and put into the laundry tub for soaking and washing by relying on the siphon effect. Clothes, where the existing dispenser uses a drawer-type pull-out structure, such as figure 1 As shown, when it is necessary to add detergent to the drawer, the drawer needs to be pulled out. At this time, since the open end of the valve interface module is not blocked, the residual washing liquid in the valve interface module will drip into the drawer installation position. There will be residual washing liquid in the drawer installation, which needs to be cleaned regularly. A liquid pumping mechanism for preventing dripping is proposed

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