CN204291932U - Anti-clogging pressure-compensated irrigation device - Google Patents

Abstract

The utility model relates to the technical field of agricultural irrigation equipment, in particular to an anti-clogging pressure compensation irrigation device. It is characterized in that it includes a casing, and a piston cylinder is arranged inside the casing, and a piston is installed in the piston cylinder through a pressure spring. A ventilation valve is provided, and circular seepage holes are provided on the side and bottom of the shell. The utility model can effectively compensate the negative pressure caused by water stoppage in the pipe, and prevent the irrigated device from sucking soil particles back. In addition, the needle-punched non-woven fabric provided on the casing of the irrigated device can not only prevent soil particles from entering the seepage hole of the irrigated device, but also It can prevent capillary roots of crops from penetrating into seepage holes, and improve the quality of infiltration irrigation, infiltration uniformity and infiltration efficiency. The utility model can be widely used in water-saving irrigation of gardens, flowers and some hole-sowed plants.

Description

Anti-clogging pressure-compensated irrigators

technical field

The utility model relates to the technical field of agricultural irrigation equipment, in particular to an anti-clogging pressure compensation irrigation device.

Background technique

At present, water-saving irrigation technology continues to develop, and water-saving irrigation equipment emerges in an endless stream. For the underground irrigation system, when the water supply stops, due to the sudden drop in the pressure in the pipe network, a negative pressure is generated in the emitter, which causes the emitter to suck back mud, thereby blocking the emitter. Due to the water orientation of the crop root system, the moist soil around the emitter will be covered with plant roots, and even some hairy roots penetrate into the seepage hole of the emitter, which will also cause blockage. However, existing infiltration irrigation devices often appear to be blocked, seriously affecting irrigation quality, infiltration uniformity, and infiltration efficiency.

Contents of the invention

The purpose of the utility model is to avoid the defects of the prior art and provide an anti-clogging pressure compensation irrigation device, which effectively solves the problems of the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the anti-clogging pressure compensation type irrigation device is characterized in that it includes a casing, a piston cylinder is arranged in the casing, and a pressure spring is installed in the piston cylinder. The piston, the upper part of the piston is connected with the water inlet pipe arranged on the shell, the piston barrel is connected with the outside through the vent pipe, the vent valve is arranged at the end of the vent pipe, and the side and bottom of the shell are provided with circular seepage holes.

The periphery of the shell is covered with needle-punched non-woven fabric.

The connection between the water inlet pipe and the shell is also provided with a sealing rubber washer.

The beneficial effects of the utility model are: the anti-clogging pressure compensation irrigation device has good anti-clogging and negative pressure compensation capabilities. At the beginning of water supply, due to the increase of water pressure in the pipeline, the water pressure reaches the piston, and then the spring is compressed, so that the pressure potential energy of the spring increases, the volume of the percolator increases, and the percolator starts to work. When the water supply system stops, the pressure in the pipe network suddenly drops, negative pressure occurs in the pipe, and the water pressure on the piston decreases. At this time, the spring quickly presses the piston to the water inlet pipe, closing the water inlet pipe. The pressure is relatively small, and the pressure is relatively increased, which effectively compensates for the negative pressure caused by the water stoppage in the pipe, and prevents the emitter from sucking soil particles back. In addition, the needle-punched non-woven fabric set on the casing of the irrigated device can prevent soil particles from entering the irrigated device. The hole can also prevent the capillary root of the crop from drilling into the seepage hole and cause blockage. It can effectively compensate the negative pressure caused by the water stoppage in the pipe, and prevent the irrigated soil particles from being sucked back. In addition, the needle-punched non-woven fabric set on the outer shell of the irrigated device can prevent soil particles from entering the seepage holes of the irrigated device, improving the efficiency of infiltration irrigation. Quality, infiltration uniformity and infiltration efficiency. The utility model can be widely used in water-saving irrigation of gardens, flowers and some hole-sowed plants.

Description of drawings

Fig. 1 is a schematic diagram of the overall sectional structure of the utility model;

Fig. 2 is a schematic diagram of the external structure of the utility model.

As shown in the picture: 1. Acupuncture non-woven fabric, 2. Shell, 3. Rubber gasket, 4. Water inlet pipe, 5. Seepage hole, 6. Piston barrel, 7. Piston, 8. Breather pipe, 9. Pressure spring , 10. Breathing valve.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, the anti-clogging pressure-compensated irrigation device is characterized in that it includes a casing 2, a piston cylinder 6 is arranged in the casing 2, and a piston is installed in the piston cylinder 6 through a pressure spring 9. 7. The upper part of the piston 7 is connected to the water inlet pipe 4 provided on the shell 2, the piston barrel 6 is connected to the outside through the vent pipe 8, the vent valve 10 is set at the end of the vent pipe 8, and the side and bottom of the shell 2 are provided with circular seepage holes 5.

Further, the outer shell 2 is covered with needle-punched non-woven fabric 1 .

Further, the connection between the water inlet pipe 4 and the casing 2 is also provided with a sealing rubber gasket 3 .

In the anti-clogging pressure-compensated irrigation device, before the water supply starts, the pressure spring 9 in the piston barrel 6 presses the piston 7 tightly to the water inlet nozzle. After the water supply starts, the water pressure in the water inlet pipe 4 increases, and the water pressure reaches On the piston 7, and then squeeze the pressure spring 9, the piston 7 moves downward until the water pressure is equal to the elastic force of the pressure spring 9, and at the same time, the water flows into the percolator. Since the spring 9 is compressed, the internal volume of the percolator increases , the infiltrator begins to seep. When the water supply system is stopped, the pressure in the water inlet pipe 4 drops suddenly, negative pressure is generated in the pipe, and the water pressure on the piston 7 decreases. At this time, the spring 9 quickly presses the piston 7 to the water inlet pipe mouth, and the water inlet pipe 4 is closed. Moving upwards, the inner volume of the irrigated device decreases, and the pressure increases relatively, thereby effectively compensating for the negative pressure caused by the water stoppage in the pipe and preventing the irrigated device from sucking back soil particles. In addition, the needle-punched non-woven The cloth 1 can prevent soil particles from entering the seepage hole 5 of the irrigation device, and can also prevent capillary roots of crops from drilling into the seepage hole 5 and cause blockage. In addition, when the piston moves upward or downward, the suction and exhaust are connected to the outside world through the vent valve at the end of the vent pipe.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. An anti-clogging pressure-compensated irrigation device is characterized in that it comprises a casing, a piston barrel is arranged in the casing, a piston is installed in the piston barrel through a pressure spring, and the upper part of the piston is connected to the water inlet pipe arranged on the casing , the piston barrel is connected to the outside through a vent pipe, a vent valve is provided at the end of the vent pipe, and circular seepage holes are provided on the side and bottom of the shell. 2. The anti-clogging pressure-compensated irrigation device according to claim 1, characterized in that: needle-punched non-woven fabric is wrapped around the outer shell. 3. The anti-clogging pressure-compensated irrigation device according to claim 1, characterized in that: a sealing rubber gasket is also provided at the joint between the water inlet pipe and the casing.