Double-Head Drainage Pump for Integrated Water Reuse and Drainage
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Solution Overview
Problem
Traditional drum washing machines require complex and costly drainage systems for both drainage and water reuse functions, increasing mounting complexity and manufacturing costs.
Innovation Solution
A double-head drainage pump with a simple structure and easy mounting design, featuring a pump housing with separate first and second water outlets controlled by corresponding motors, allowing for integrated water reuse and drainage functions without the need for complex three-way valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two drainage pumps are mounted to realize drainage and water reuse functions, then the drainage and water reuse functions are achieved, but the mounting complexity and manufacturing cost are increased
Solution Approach 1:
The patent combines two separate drainage pumps into a single integrated pump unit with a common pump body. The pump housing includes a water inlet and two separate water outlets (first water outlet for drainage, second water outlet for water reuse), allowing one pump to perform both drainage and water reuse functions that previously required two separate pumps, thereby reducing mounting complexity while maintaining functional versatility
Solution Approach 2:
The single drainage pump is designed with multi-functionality to handle both drainage and water reuse operations. The pump body incorporates a water inlet and two independently controllable water outlets, enabling the same pump mechanism to serve multiple purposes (drainage to drainage pipeline and water reuse to water reuse pipeline) without requiring separate dedicated pumps for each function
2Adaptability or versatility
If two drainage pumps are mounted to realize drainage and water reuse functions, then the drainage and water reuse functions are achieved, but the manufacturing cost is increased
Solution Approach 1:
The patent merges two separate pump units into one integrated pump assembly with a shared pump body, motor, and housing structure. This consolidation reduces the total number of components that need to be manufactured, assembled, and tested, thereby lowering manufacturing costs while still providing both drainage and water reuse functions through the two separate outlets
3Adaptability or versatility
If a complex drainage system is used for water reuse, then the water reuse function is achieved, but the external size and drainage lift are increased
Solution Approach 1:
The patent integrates the water reuse function into the same pump housing as the drainage function, with both outlets originating from a common pump body. This unified design eliminates the need for separate pump housings and associated mounting structures, thereby reducing the overall external size and drainage lift requirements compared to systems using separate pumps for each function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces external size, drainage lift, and manufacturing costs while ensuring effective water reuse and drainage, avoiding secondary pollution and water reflux.
Implementation Method 1
a first drainage motor is mounted on the pump housing corresponding to the first water outlet and controls opening and closing of the first water outlet
Implementation Method 2
a second drainage motor is mounted on the pump housing corresponding to the second water outlet and controls opening and closing of the second water outlet
Implementation Method 3
a pump housing in which a water inlet is formed, at least one first water outlet and at least one second water outlet are formed in the pump housing
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure provides a double-head drainage pump of a washing machine. The double-head drainage pump comprises a pump housing in which a water inlet (8) is formed. At least one first water outlet (2) and at least one second water outlet (6) are formed in the pump housing. A first drainage motor (1) is mounted on the pump housing corresponding to the first water outlet (2) and a second drainage motor (10) is mounted on the pump housing corresponding to the second water outlet (6). The first drainage motor (1) controls opening/closing of the first water outlet (2), and the second drainage motor (10) controls opening/closing of the second water outlet (6). The first water outlet (2) and the second water outlet (6) which share one water inlet are formed in the pump housing, the first water outlet (2) is used for realizing drainage of the washing machine, and the second water outlet (6) is used for realizing water reusing drainage, so that the double-head drainage pump can be suitable for a drum washing machine with a water reusing function and is high in integration level of the whole structure, simple in structure and easy to mount.