CN2295322Y

CN2295322Y - Anti-blocking dropping head

Info

Publication number: CN2295322Y
Application number: CN 97222721
Authority: CN
Inventors: 戴伯欣
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-05
Filing date: 1997-08-05
Publication date: 1998-10-28
Anticipated expiration: 2007-08-05

Abstract

The utility model discloses an anti-blocking dropping head. A dropping head is provided with an insert block. The outside of the insert block is provided with an inset groove. The center of the insert block is provided with a water outlet cavity. A pressure regulating mouth is arranged at the bottom of the water outlet cavity and is communicated with the water outlet cavity. At least one narrow gap is arranged on the pressure regulating mouth. The utility model has the advantages of strong anti-blocking ability, convenient dredging, even water output, wide compensation, strong applicability, simple structure, easy manufacture, less production steps, low cost, and long service life.

Description

Anti-blocking dropping head

The utility model relates to a kind of water dropper of irrigating usefulness, relates to a kind of anti-blocking dropping head specifically.

Drip irrigation is the best irrigation technique of China's water-saving performance at present, the water dropper that present drip irrigation is generally used has damp type water dropper, compensation water dropper etc., the damp type water dropper is in hollow billet inside or the elongated tortuous damping flow channel of outer setting, press water is after damping flow channel refraction energy dissipating, slowly flow out from the gap, this water dropper changes with the drip irrigation system variation in water pressure, thereby water yield is inhomogeneous, and water dropper produces and stops up and can't dredge, and influence is normally used; Compensation water dropper is to be made up of a plurality of small injection of plastic elements, and the water dropper inner chamber is established compensating diaphragm, under the effect of drip irrigation system hydraulic pressure, compensating diaphragm produces distortion, and through-flow section is changed with water pressure, and hydraulic pressure increases through-flow section and reduces, hydraulic pressure reduces through-flow section and increases, thereby making the water dropper water yield comparatively even, this emitter structure complexity requires process equipment precision height, complex manufacturing, water dropper produces and stops up and can't dredge simultaneously, and influence is normally used, and the production cost height; As can be seen from the above the water dropper on the market because the degree of purity of China's rural area water is not enough blockage phenomenon easily, and water dropper stops up and is difficult for mediation and causes system jams, influenced the use of drip irrigation, restricted popularizing and promoting of drip irrigation.It is definitely pure that China's farmland irrigation water is difficult to reach, all contain organic or inorganic impurity such as silt particle, microorganism in the water, and China's farmland landform just rises and falls, the mountain area, hills is promptly arranged, the flat-bottomed land is arranged again, and the drip irrigation emitter ubiquity on the market bad adaptability, is stopped up, dredges inconvenience, shortcomings such as water yield is inhomogeneous, service life is short, complex structure, cost height easily.

The purpose of this utility model is to provide strong, the difficult obstruction of a kind of adaptability, the anti-blocking dropping head that mediation is convenient, the water yield homogeneous texture is simple, cost is low.

The purpose of this utility model is achieved in that anti-blocking dropping head inserts, in the said outside of inserting embedding groove is arranged, at the said center of inserting is water chamber, linking to each other in said water chamber bottom and with water chamber is connected with the pressure regulation Zi, one of the lunar mansions, opens at least one narrow slit on said pressure regulation Zi, one of the lunar mansions.

Above open the slit one on the said pressure regulation Zi, one of the lunar mansions.

Advantage of the present utility model is: owing in the bottom of water chamber the pressure regulation Zi, one of the lunar mansions is arranged, on the pressure regulation Zi, one of the lunar mansions, have the slit, so pressure flow enters water chamber by narrow gap, behind the drip irrigation system water-filling, the inside and outside pressure differential that forms of water chamber, after hydraulic pressure increased, pressure differential increased thereupon, and the pressure regulation Zi, one of the lunar mansions produces distortion under action of pressure, its slit is opened or is closed, through-flow section changes with pressure, thereby has regulated the water yield of water dropper, reaches the effect of automatic compensation; In use, after water dropper stopped up, available round end awl was disclosed into water chamber, and the pressure regulation Zi, one of the lunar mansions opens, and pressure flow can be gone out tamper rapidly, thereby reaches the purpose of block clearing plug; In sum, the utility model anti-blockage capability is strong, and mediation is convenient, and water yield is even, and compensation performance is extensive, and adaptability is strong, and emitter structure is simple, shapes easily, and production process is few, and cost is low, long service life.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the utility model cutaway view;

Fig. 2 is the A-A cutaway view of Fig. 1.

As shown in Figure 1 and Figure 2, anti-blocking dropping head inserts 1, the embedding groove 2 that usefulness is installed is arranged in said 1 outside of inserting, at said 1 center of inserting is water chamber 3, in said water chamber 3 bottoms pressure regulation Zi, one of the lunar mansions 4 is arranged, pressure regulation Zi, one of the lunar mansions 4 is communicated with water chamber 3, opens one narrow slit 5 on said pressure regulation Zi, one of the lunar mansions 4.During work, pressure flow enters water chamber by narrow gap, behind the drip irrigation system water-filling, the inside and outside pressure differential that forms of water chamber is after hydraulic pressure increases, pressure differential increases thereupon, the pressure regulation Zi, one of the lunar mansions produces distortion under action of pressure, its slit is opened or be closed, and through-flow section changes with pressure, thereby regulated the water yield of water dropper, reached the effect of automatic compensation; In use, after water dropper stopped up, available round end awl was disclosed into water chamber, and the pressure regulation Zi, one of the lunar mansions opens, and pressure flow can be gone out tamper rapidly, thereby reaches the purpose of block clearing plug.The utility model anti-blockage capability is strong, and mediation is convenient, and water yield is even, and compensation performance is extensive, and adaptability is strong, and emitter structure is simple, shapes easily, and production process is few, and cost is low, long service life.

Claims

1, a kind of anti-blocking dropping head, it is characterized in that: insert (1), in said inserting (1) outside embedding groove (2) is arranged, at said inserting (1) center is water chamber (3), linking to each other in said water chamber (3) bottom and with water chamber is connected with pressure regulation Zi, one of the lunar mansions (4), opens at least one narrow slit (5) on said pressure regulation Zi, one of the lunar mansions (4).

2, anti-blocking dropping head according to claim 1 is characterized in that: open one slit (5) on the said pressure regulation Zi, one of the lunar mansions (4).