CN102513241B - Micro-sprayer rotating body with main flow channel and auxiliary flow channel - Google Patents

Abstract

The invention relates to a rotating body of a micro-spray head with main and auxiliary flow channels, which includes a water inlet that can be connected to the water nozzle of the micro-spray head in a rotary socket connection, a main channel opened on the side wall of the rotating body, and an auxiliary flow channel opened on the side wall of the rotating body , the supporting rotating shaft that can be inserted into the positioning hole at the upper end of the micro-spray head frame; The hanging end is suspended above the water inlet, and the vertical height h between the top wall of the secondary channel and the hanging end is half of the vertical height H between the top wall of the main channel and the hanging end; the present invention has the main channel to control the water volume at a distance, The feature of the auxiliary flow channel controlling the amount of water in the vicinity greatly improves the uniformity of spraying, and at the same time ensures that the center of gravity of the rotating body is on the center line of the rotating body, which overcomes the phenomenon of large jitter during rotation.

Description

Rotating body of micro-spray head in main and auxiliary channels

technical field

The invention relates to a water-saving irrigation equipment, in particular to a rotating body of a micro-sprinkler head in a main and auxiliary channel.

Background technique

Agriculture is a large water user, and irrigation water accounts for more than 90% of agricultural water use; China's agricultural water use efficiency is low, and the national average irrigation water utilization coefficient is far lower than that of developed countries. Therefore, implement efficient agricultural water-saving strategies to improve the level of modern agricultural irrigation technology It is very necessary; with the adjustment of China's agricultural planting structure and the improvement of farmers' economic conditions, the planting area of cash crops and greenhouses is increasing rapidly, and the requirements for irrigation conditions are increasing. In addition, urban construction attaches great importance to environmental greening and urban greening With the rapid increase of the area, the demand for micro-sprinkler irrigation technology is increasing; micro-sprinkler irrigation technology is an advanced irrigation technology that can effectively regulate crop moisture. Micro-sprinkler irrigation uses pipeline water delivery and sprays close to the ground, which greatly reduces evaporation loss and water delivery. In addition, micro-sprinkler irrigation is partial irrigation, which reduces the ineffective water consumption of some soils, thus saving water. At the same time, it has the characteristics of energy saving, uniform irrigation and high irrigation quality. Micro-sprinkler irrigation can also be combined with crop foliage fertilization, spraying, etc. When used, the atomization degree is higher when spraying water, which can increase the humidity of crops, adjust the soil temperature, better control the humidity and temperature of the ground surface, reduce the occurrence of diseases and insect pests, and improve the quality and yield of crops. Therefore, in facility agriculture and characteristic It has been widely used in agricultural planting. Micro-sprinkler irrigation is mainly used for ground irrigation, such as greenhouse vegetables, seedlings, and flower cultivation, which have high requirements for humidity. It can irrigate crops and adjust the environmental humidity or temperature of protected areas, which is conducive to crop growth and can clean the leaves of crops. role.

Micro-sprinkler irrigation uses micro-nozzles to spray water in small droplets near the crops for irrigation; micro-sprinkler irrigation is similar to drizzle, it will not damage crops during irrigation, and can adjust the microclimate in the field, and it is more resistant to clogging than drip irrigation. Requirements for water treatment Low; micro-sprinkler irrigation is widely used in fruit trees, flowers, vegetables, nurseries, lawns, greenhouses and other occasions; micro-sprinklers are key equipment for micro-sprinkler irrigation. The function of micro-sprinklers is to spray pressurized water evenly through water pipelines , to meet the water demand for normal crop growth; the performance of the emitter directly affects the quality of irrigation water, the reliability and stability of the irrigation system; therefore, domestic and foreign attach great importance to the research and development of the emitter; the overall development of the emitter The trend is to develop in the direction of low-pressure energy saving, which can not only reduce energy consumption, but also use low-pressure plastic pipes, which reduces the cost of pipes.

Chinese patent authorization announcement number: CN2571495Y, authorization announcement date: September 10, 2003, disclosed "a kind of rotary micro-sprinkler head, which includes a water nozzle and a rotating body, and is characterized in that: the upper end of the damper housing is fixed on the On the frame connected to the water nozzle, the damper shaft is evenly distributed with damping sheets, and its two ends are rotatably supported in the holes at the upper and lower ends of the damper housing, and the upper end of the rotating body is connected with the lower end of the damper shaft; The damper reduces the rotating speed of the rotating body, so compared with the existing micro-spray head, it has the advantage of a longer spraying range." The rotary micro-spray head has the disadvantages of uneven spraying, more water than near, and due to the deviation of the center of gravity, There is a lot of vibration during rotation.

Contents of the invention

The technical problem to be solved by the present invention is to provide the rotating body of the main and auxiliary channel micro-spray head, which has the characteristics that the main channel controls the water volume in the distance, and the auxiliary channel controls the water volume in the vicinity, which greatly improves the uniformity of spraying and ensures The center of gravity of the rotating body is on the center line of the rotating body, which overcomes the phenomenon of large vibration during the rotation.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: the rotating body of the micro-spray head of the main and secondary channels, which includes a water inlet that can be connected with the water nozzle of the micro-spray head and a main channel that is opened on the side wall of the rotating body. , the auxiliary flow channel set on the side wall of the rotating body, the supporting rotating shaft that can be inserted into the positioning hole at the upper end of the micro-sprinkler frame; the main flow channel and the auxiliary flow channel are all provided with arc-shaped diversion grooves, The hanging end of the lower connection of the arc-shaped diversion groove is suspended above the water inlet so that the liquid flowing in from the water inlet can be divided into the main channel and the secondary channel. The vertical height of the top wall of the secondary channel from the hanging end h is half of the vertical height H between the top wall of the main channel and the hanging end. This design can make the water volume in the long and short distances within the spraying range of the water flow consistent, and ensure that the water volume in the spraying range is evenly distributed.

The upper part of the arc-shaped diversion groove of the main channel and the upper part of the arc-shaped diversion groove of the secondary channel are in a zigzag structure, and the zigzag structure of the main channel and the zigzag structure of the secondary channel are bent in the same direction around the central axis , so that when the water flow passes through the main channel and the secondary channel, a lateral thrust is applied to the rotating body in the same direction to make the rotating body rotate.

The outer arc parameters of the arc-shaped diversion grooves of the main flow channel and the auxiliary flow channel are the same, the arc angles are 45°-49°, and the arc radii are 115mm-125mm.

The arc angle of the inner arc of the main flow diversion groove is 40°-44°, the arc radius of the inner arc of the main flow diversion groove is 103 mm-107 mm, and the inner arc of the secondary flow diversion groove The arc angle of the line is 33°~37°, and the arc radius is 50 mm~54 mm.

The vertical distance between the hanging end of the lower connection of the main channel and the arc-shaped diversion channel of the secondary channel is 1 mm to 3 mm from the vertical line of the upper end surface of the water inlet.

The vertical line of the hanging end at the lower end connection of the main channel and the arc diversion groove of the secondary channel is located at the position of the diameter line 7:3 of the water inlet; the working process is that 70% of the water volume of the water inlet of the water nozzle enters the main flow The water sprayed by the main channel is mainly distributed in the middle and long distances. 30% of the water through the water inlet of the nozzle enters the secondary channel, and the water sprayed by the secondary channel is mainly distributed in the short distance. This way through the main and secondary channels It can make the water flow leave the spraying body from different curve endpoints and throw it to different positions, so that the amount of water can be evenly distributed on the far, middle and near soil, ensuring a more uniform spraying. It has the advantages of large water range, uniform water distribution and stable rotation.

The present invention has the characteristics that the main channel controls the water volume at a distance, and the secondary channel controls the near water volume, which greatly improves the uniformity of spraying, and at the same time ensures that the center of gravity of the rotating body is on the center line of the rotating body, and the micro-spray head rotates The rotation is stable, and the phenomenon of large vibration during the rotation is overcome.

Description of drawings

Fig. 1 is the front view of the present invention.

Fig. 2 is a left view of the present invention.

Fig. 3 is a right side view of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram taken along the line A-A of Fig. 1 .

Detailed ways

Referring to Figures 1 to 4, the micro-sprinkler rotating body of the main and auxiliary channels includes a water inlet 1 that can be connected with the water nozzle of the micro-sprinkling head, a main channel 2 that is opened on the side wall of the rotating body, and a water inlet that is opened on the rotating body. The auxiliary flow channel 3 on the side wall of the body, the support rotating shaft 4 that can be inserted into the positioning hole at the upper end of the micro-spray head frame; the main flow channel 2 and the auxiliary flow channel 3 are all provided with arc guide grooves 21, 31, 2 and the lower end of the sub-runner 3 arc-shaped diversion groove, the hanging end 5 is suspended above the water inlet 1, and the vertical height h between the top wall of the sub-runner 3 and the hanging end 5 is the top wall of the main channel. Half the vertical height H from the overhanging end 5.

The upper part of the arc-shaped guide groove 21 of the main channel 2 and the upper part of the arc-shaped guide groove 31 of the secondary channel 3 both have zigzag structures 211, 311. The glyph structure 311 is bent along the same direction around the central axis.

The parameters of the outer arcs 22 and 32 of the arc guide grooves of the main channel 2 and the secondary channel 3 are the same, the arc angles are both 47°, and the arc radii are both 120mm.

The arc angle of the arc 23 in the main channel 2 diversion groove is 42 °, the arc radius of the arc 23 in the main channel 2 diversion groove is 105 mm, and the arc in the auxiliary runner 3 diversion groove The arc angle of 33 is 35°, and the arc radius is 52mm.

The vertical distance from the hanging end 5 at the lower end connection of the main channel 2 and the secondary channel 3 arc-shaped diversion groove to the upper end surface of the water inlet 1 is 2 mm.

The vertical line of the hanging end 5 at the connection point of the lower end of the arc guide groove of the main channel 2 and the secondary channel 3 is located at the position of the diameter line 7:3 of the water inlet 1 .

As mentioned above, the micro-spray head rotating body of the main and auxiliary channels of the present invention, the described embodiments and drawings are only the better implementation effects of the present invention, and are not limited to the present invention, and are similar to the structure and characteristics of the present invention. , similarity, all should belong to the scope of protection of the present invention.

Claims (6)

1. The rotating body of the micro-sprinkler head with main and auxiliary flow channels is characterized in that it includes a water inlet (1) that can be connected to the water nozzle of the micro-spray head by rotating and socketing, a main channel (2) opened on the side wall of the rotating body, and a The auxiliary channel (3) on the side wall of the rotating body, the supporting rotating shaft (4) that can be inserted into the positioning hole at the upper end of the micro-sprinkler frame; the water inlet (1), the main channel (2) and the auxiliary channel (3) The rotating body is a sheet-like structure, and its longitudinal section is rectangular; the main channel (2) and the secondary channel (3) are both provided with arc-shaped diversion grooves (21, 31), and the main channel (2) The hanging end (5) at the connection with the lower end of the arc-shaped diversion groove of the auxiliary flow channel (3) is suspended above the water inlet (1), and the top wall of the auxiliary flow channel (3) is at a distance from the hanging end (5) The vertical height h of the sprue is half of the vertical height H from the top wall of the sprue to the hanging end (5). 2. The rotating body of micro-sprinkler head with main and auxiliary channels according to claim 1, characterized in that: the upper part of the main channel (2) arc-shaped diversion groove (21) and the arc-shaped diversion groove of the auxiliary channel (3) (31) The upper part has a zigzag structure (211, 311), the zigzag structure (211) of the main flow channel (2) and the zigzag structure (311) of the secondary flow channel (3) are bent in the same direction around the central axis fold. 3. The rotating body of micro-sprinkler head with main and auxiliary channels according to claim 2, characterized in that: the outer arcs (22, 32 ) parameters are the same, the arc angle is 45°～49°, and the arc radius is 115mm～125mm. 4. The micro-sprinkler rotating body of main and auxiliary channels according to claim 3, characterized in that: the arc angle of the inner arc (23) of the diversion groove of the main channel (2) is 40°-44°, and the main channel (2) The arc radius of the inner arc (23) of the channel (2) diversion groove is 103 mm to 107 mm, and the arc angle of the inner arc (33) of the secondary channel (3) diversion groove is 33° to 37° °, the radius of the arc is 50 mm to 54 mm. 5. The rotating body of micro-sprinkler head with main and auxiliary channels according to claim 4, characterized in that: the hanging end (5 ) is 1mm to 3mm from the vertical line on the upper surface of the water inlet (1). 6. The rotating body of micro-sprinkler head with main and auxiliary channels according to claim 5, characterized in that: the hanging end (5 ) at the position of the diameter line 7:3 of the water inlet (1).