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US 11,959,219 B2Granted
Washing agent pump and laundry treating apparatus having the same
AssigneeLG Electronics Inc.
InventorsSungwoon Jung, Hunjun Jang
Life of this patent
Estimating the term…
Abstract
Provided is a washing agent pump and a laundry treating apparatus having the same. The laundry treating apparatus may include a cabinet, a tub provided within the cabinet, a rotary tub provided within the tub in a rotatable manner, and a washing agent supply unit. The washing agent supply unit may include a storage container to store a liquid washing agent including a liquid detergent or a liquid softener, the storage container being slidably provided in the cabinet, a washing agent supply passage having one side connected to the storage container and another side connected to the tub, and a washing agent delivery device provided in the washing agent supply passage to deliver the liquid washing agent to the tub.
Claims21
A laundry treating apparatus, comprising:
- a cabinet;
- a tub to be within the cabinet;
- a rotary tub to be within the tub;
- and
- a washing agent supply unit configured to provide a washing agent for the tub;
- wherein the washing agent supply unit comprises:
- a storage container located in the cabinet, and storing the washing agent;
- and
- a washing agent pump connected to the storage container,
- wherein the washing agent pump comprises:
- a passage forming member to provide a passage including an introduction space, a pressing space, and a discharge space for the washing agent;
- an intake valve disposed between the introduction space and the pressing space, the intake valve allowing a flow of the washing agent from the introduction space to the pressing space and restricting a flow of the washing agent from the pressing space to the introduction space;
- and
- a discharge valve disposed between the pressing space and the discharge space, the discharge valve allowing a flow of the washing agent from the pressing space to the discharge space and restricting a flow of the washing agent from the discharge space to the pressing space,
- wherein the storage container is communicated with the introduction space of the passage forming member, and the passage forming member is configured to discharge the washing agent of the discharge space, and
- wherein the passage forming member is configured to align the introduction space, the pressing space, and the discharge space along a straight line.
13 more elements
A laundry treating apparatus, comprising:
- a cabinet;
- a tub to be within the cabinet;
- a rotary tub to be within the tub;
- and
- a washing agent supply unit configured to provide a washing agent for the tub;
- wherein the washing agent supply unit comprises:
- a storage container to be within the cabinet, and configured to store the washing agent;
- and
- a washing agent pump to couple to the storage container, and configured to communicate with the storage container,
- wherein the washing agent pump comprises:
- a first pipe portion having a pressing space disposed therein, and the first pipe portion to have a first inner diameter;
- a second pipe portion having a second outer diameter smaller than the first inner diameter of the first pipe portion, and the second pipe portion to have a first end to be accommodated in the storage container and a second end to be accommodated in the first pipe portion;
- a cylinder to provide an inner space;
- a piston configured to move in a linear reciprocating motion within the cylinder and change volume of the inner space;
- and
- a communication passage configured to provide communication between the pressing space and the inner space at an overlapped position of the first pipe portion and the second pipe portion.
13 more elements
A laundry treating apparatus, comprising:
- a cabinet;
- a tub to be within the cabinet;
- a rotary tub to be within the tub;
- and
- a washing agent supply unit configured to deliver a washing agent for the tub;
- wherein the washing agent supply unit comprises:
- a storage container to be within the cabinet, and configured to store the washing agent;
- a washing agent pump to couple to the storage container, and configured to communicate with the storage container,
- wherein the washing agent pump comprises:
- a piston configured to move in a linear reciprocating motion;
- a piston operating unit configured to provide a driving force to operate the piston;
- a case to provide an internal accommodating space for accommodating the piston operating unit;
- a first cylinder to protrude from the case in a first direction, and configured to accommodate the piston;
- a passage forming member to provide a passage for the washing agent and provide at least a pressing space within the passage forming member;
- and
- a second cylinder to be formed integrally with the passage forming member, and configured to provide an inner space to communicate with the pressing space, and having an opening formed in a second direction opposite to the first direction, and accommodating the first cylinder, and
- wherein the first cylinder is inserted into the second cylinder through the opening of the second cylinder to couple with the second cylinder.
14 more elements
Dependencies are inferred from the claim text.