| 摘要 |
The present invention relates to a sprinkler which comprises: a bearing sleeve including a passage where water passes in the longitudinal direction inside; a filter installed to be extended along the moving path of water for storing foreign substances moved from the upstream to the downstream of the passage; and a check valve arranged on the lower part of the filter, and supporting the upper surface of the filter. The filter is arranged to be extended from the upstream to the downstream in the passage. |
