On-pipe type water irrigator

Abstract

The invention relates to an on-pipe type water irrigator which is characterized by comprising an inlet water guide part, a flow channel cover plate, a round elastic piece, a base, a scraping piece cover plate, an elastic supporting part, an adjusting cavity and an outlet cavity body; a water inlet and a flow channel groove are formed in the inlet water guide part, and the flow channel cover plate is arranged at the top of the inlet water guide part, a flow channel convex body is arranged on the flow channel cover plate, and a flow channel is defined between the flow channel groove and the flow channel convex body, one end of the flow passage is provided with a flow passage inlet, and the other end of the flow passage is provided with a flow passage outlet communicating with a supporting cavity; a drainage hole is formed in a partition plate of the base, and the base is in sealed connection with the inlet water guide part; the circumferential edge of the round elastic piece is tightly fixed at the bottom of the partition plate, and the bottom of the round elastic piece is supported at the top of the supporting cavity, and a water passing hole is formed in the bottom of the adjusting cavity; the adjusting cavity is in sealed connection with the base, and water outlets are formed in the side wall of the adjusting cavity; scraping pieces of the scraping piece cover plate are connected with the water outlet in a sliding mode; the elastic supporting part is arranged between the adjusting cavity and the scraping piece cover plate; the water outlet cavity is hermetically connected with the base, and a water outlet is formed in the top of the water outlet cavity.

Description

technical field [0001] The invention relates to a pipe-type sprinkler, which belongs to the technical field of agricultural irrigation. Background technique [0002] Drip irrigation is one of the most water-saving irrigation technologies at present. As the "heart" of the drip irrigation system, the emitter is crucial to the normal operation of the drip irrigation system. However, there are generally three problems in drip irrigation products currently used in China: one is that due to the poor adaptive performance of the emitter, each emitter has its specific flow range, so it is impossible to achieve multi-flow adjustment for a single product; The uniformity is low, which has a certain impact on the yield and quality of crops, resulting in deep water leakage and nutrient leaching, so it is easy to form non-point source pollution; third, in order to achieve sufficient energy dissipation of the flow channel, the water flow is uniformly dripped in the shape of water droplets ...

AI Technical Summary

Problems solved by technology

However, there are generally three problems in drip irrigation products currently used in China: one is that due to the poor adaptive performance of the emitter, each emitter has its specific flow range, so it is impossible to achieve multi-flow adjustment for a single product; The uniformity is low, which has a certain impact on the yield and quality of crops, resulting in deep water leakage and nutrient leaching, so it is easy to form non-point source pollution; third, in order to achieve sufficient energy dissipation of the flow channel, the water flow is uniformly dripped in the shape of water droplets To the root zone of crops, the size of the inlet and outlet of the emitter and the flow channel are generally very small, which can easily cause blockage, and even cause the failure of the entire drip irrigation system in severe cases

[0003] The Chinese patent application number 201320132087.9 discloses a large-flow pressure-compensated emitter. The emitter uses a circulation chamber instead of a labyrinth flow channel. Although the anti-clogging performance of the emitter is improved, the hydraulic performance of the emitter is sacrificed. It is difficult to guarantee the uniformity of irrigation, so it is only suitable for crops with large water demand, and the scope of use is limited

The Chinese patent application number 201310461380.4 discloses an anti-clogging channel pressure compensation emitter, which can prevent impurities from depositing in the narrower part of the channel and achieve the purpose of preventing the channel of the emitter from clogging, but it does not consider irrigation Due to the poor self-adaptive performance of the controller, it is difficult to realize the multi-flow level adjustment of a single product

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