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1. CN107249304 - Emitter and drip irrigation tube

Office China
Application Number 201680011472.4
Application Date 23.02.2016
Publication Number 107249304
Publication Date 13.10.2017
Grant Number 107249304
Grant Date 07.01.2020
Publication Kind B
IPC
A01G 25/02
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
02Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
CPC
A01G 25/023
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
02Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
023Dispensing fittings for drip irrigation, e.g. drippers
Y02A 40/22
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
40Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
10in agriculture
22Improving land use; Improving water use or availability; Controlling erosion
Applicants ENPLAS CORP
恩普乐股份有限公司
Inventors KIDACHI MASAHIRO
木立昌宏
Agents 北京市正见永申律师事务所 11497
Priority Data 2015-035450 25.02.2015 JP
2015-112274 02.06.2015 JP
Title
(EN) Emitter and drip irrigation tube
(ZH) 发射器和滴灌用输送管
Abstract
(EN)
An emitter according to the present invention includes a water intake part, a discharge part, a first flow path, a second flow path, a flow-rate decreasing part, a flow path opening/closing part, a pressure reducing flow path, and a bypass flow path. The pressure reducing flow path is provided to the first flow path on the upstream side of the flow-rate decreasing part, reduces the pressure of an irrigation liquid, and guides the irrigation liquid to the flow-rate decreasing part. The bypass flow path is provided to the second flow path on the upstream side of the flow path opening/closing part, and guides the irrigation liquid to the flow path opening/closing part in a state where the pressure of the irrigation liquid is maintained at a pressure higher than that of the irrigation liquid that has passed through the pressure reducing flow path. When the pressure of the irrigation liquid is lower than a first pressure, the irrigation liquid passes through the pressure reducing flow path and the bypass flow path to be guided to the discharge part. When the pressure of the irrigation liquid is a second pressure or higher, the second flow path is closed by the flow path opening/closing part and the irrigation liquid passes through the pressure reducing flow path to be guided to the discharge part.

(ZH)
本发明的发射器包括取水部、排出部、第一流路、第二流路、流量减少部、流路开闭部、减压流路以及旁通流路。减压流路配置在流量减少部的上游侧的第一流路上,使灌溉用液体的压力减压并将灌溉用液体导入流量减少部。旁通流路配置在流路开闭部的上游侧的第二流路上,在将灌溉用液体的压力维持为比减压流路中流动的灌溉用液体的压力高的压力的状态下将灌溉用液体导入流路开闭部。在灌溉用液体的压力小于第一压力的情况下,灌溉用液体通过减压流路和旁通流路被导入排出部。在灌溉用液体的压力为第一压力以上的情况下,流路开闭部将第二流路闭塞,灌溉用液体通过减压流路被导入排出部。