Landscaping water-saving spray head based on thermal expansion and cold contraction
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 田海顺
- Publication Date
- 2021-03-23
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of landscaping equipment, in particular to a water-saving sprinkler head for landscaping based on thermal expansion and cold contraction. Background technique
[0002] With the rapid development of human science and technology, human needs for life are also increasing. Therefore, human beings demand more and more resources from nature, resulting in serious damage to the ecology. Due to the increasing awareness of ecological protection in recent years The stronger it is, the more people start to advocate the protection of ecology and artificially cultivate ecology. For example, greening in cities is an important part of ecological reconstruction, and in order to save water, most of them use drip irrigation technology, which can effectively save water resources while ensuring green water sources. .
[0003] However, when the current irrigation control device is used, it is either timed watering or manual cont...