Sprinkling irrigation sprayer for irrigating square area

Abstract

The irrigation nozzle comprises a water pipe connector, a support, a water dispersing cone and an adjusting mechanism, a water inlet is formed in the bottom of the water pipe connector and connected with a water pipe, a water outlet is formed in the top of the water pipe connector, the water dispersing cone comprises a water distributing cone head and a water distributing curved surface fixed to the top of the water distributing cone head, and the water distributing curved surface is fixedly connected with the bottom end of the adjusting mechanism. The lower end of the support is fixed to the water pipe connector, the upper end of the adjusting mechanism is arranged on the support and enables the water distribution conical head to be located above the water pipe connector, the water distribution conical head is arranged above the water outlet, and the adjusting mechanism is used for adjusting the distance between the water distribution conical head and the water outlet. Compared with an existing spray head with a fan-shaped or circular irrigation area, the spray irrigation uniformity is greatly improved, water resources are saved to a greater extent, installation and operation are easy and convenient, the structure is simple, the production cost is reduced while the irrigation effect is guaranteed, precise irrigation agricultural development is promoted, and the agricultural development is enabled.

Description

Technical Field

[0001] The invention belongs to the field of agricultural irrigation, and in particular is an invention of a sprinkler nozzle with a square irrigation area. Background Art

[0002] With the development of science and technology and social economy, new technologies such as drip irrigation, sprinkler irrigation and micro-sprinkler irrigation have emerged, promoting the rapid development of water-saving irrigation technology to improve water resource utilization efficiency and production efficiency. Sprinkler irrigation is currently a widely used method for agricultural irrigation. Compared with traditional irrigation, it has obvious water-saving effects and greatly reduces labor. At present, there are many types of sprinkler nozzles, but the shape of the sprinkler area is mainly circular or fan-shaped. The disadvantage of this type of sprinkler is that when multiple sprinkler nozzles work at the same time, there are some uncovered areas between the circular areas of sprinkler irrigation that cannot be irrigated or there are repeated irrigation areas, resulting in poor irrigation uniformity and low water resource utilization. This makes the soil moisture content in different areas vary greatly, affecting the consistency of crop growth and causing water resource waste. Moreover, the quality of irrigation water has a great impact on the service life and irrigation effect of the sprinkler. If the water contains impurities, sediment and other substances, it may clog the sprinkler and affect the normal operation of the sprinkler. Summary of the invention

[0003] In response to the problems existing in the prior art, the present invention provides a sprinkler nozzle with a square irrigation area. Compared with the existing sprinkler nozzles with fan-shaped or circular irrigation areas, the device greatly improves the uniformity of sprinkler irrigation and saves water resources to a greater extent. It is easy to install and operate and has a simple structure. It reduces production costs while ensuring irrigation effects, promotes the development of precision irrigation agriculture, and empowers agricultural development.

[0004] The device of the present invention comprises a water pipe joint, a bracket, a water dispersion cone, and an adjusting mechanism. The bottom of the water pipe joint is a water inlet connected to a water pipe, and the top is a water outlet. The water dispersion cone comprises a water diversion cone head and a water diversion curved surface fixed on the top of the water diversion cone head. The water diversion curved surface is fixedly connected to the bottom end of the adjusting mechanism. The lower end of the bracket is fixed on the water pipe joint. The upper end of the adjusting mechanism is arranged on the bracket and the water diversion cone head is located above the water pipe joint. The water diversion cone head is arranged above the water outlet. The adjusting mechanism is used to adjust the distance between the water diversion cone head and the water outlet.

[0005] The water dividing surface is designed and obtained by the following method:

[0006] (1) The circular water circle sprayed from the water outlet and the water diversion cone is divided into 360 parts with the water diversion cone as the center. The initial velocity V of each water belt in the vertical direction is y =V0sinα, the initial velocity in the horizontal direction is V x =V0cosα, where V0 is the velocity of the water belt when it contacts the water-break surface; α is the angle between V0 and the horizontal line;

[0007] In the horizontal direction of the hose running track, the horizontal distance from the irrigation area boundary to the water outlet is L=L1+L2, where the horizontal distance from the water outlet to the highest point of the hose spray arc track is L1, and the horizontal distance from the highest point of the hose spray arc track to the irrigation area boundary is L2;

[0008] according to V y =V0sinα, then the vertical distance h between the water outlet and the highest point of the hose running track is:

[0009]

[0010] Where: g is the acceleration due to gravity;

[0011] according to The time it takes for the water hose to pass through the L1 stage is

[0012]

[0013] (2) Assume that the height from the ground to the outlet is H, and the relationship between the trajectory height and time is:

[0014]

[0015] L=V0cosα(t1+t2)

[0016]

[0017] (3) When the sprinkler is located at the center of the square irrigation area, the shortest distance from the sprinkler to the square boundary is d. The relationship between L and d is:

[0018]

[0019] Where: β is the angle between the shortest distance d and L, and L is the horizontal distance from the irrigation area boundary to the outlet;

[0020] (4) Using Maple software, calculate the angle α of each of the 360 ​​water strips in the specific square irrigation area according to the relationship between L and d in step (2);

[0021] A polar coordinate system was established in the plane, with the water dividing cone head as the pole and the polar radius of 1. The coordinates x and y of the angle α of each water hose on the plane were calculated according to x=sinβ and y=sinβ. The coordinate z of the angle α of each water hose in the three-dimensional rectangular coordinate system was calculated according to the formula z=tanα, and the three-dimensional coordinates x, y, z of the angle α of 360 water hoses were obtained. The water dividing surface was fitted in Matlab software, and the water dividing surface model was constructed in Solidworks.

[0022] The adjustment mechanism is an adjustment structure that can adjust the distance between the water diversion cone head and the water outlet, for example, it includes an adjustment rod, a fixing block, and a latch. The bottom end of the adjustment rod is fixedly connected to the top of the water diversion curved surface, the upper end of the adjustment rod passes through the bracket, the fixing block is sleeved on the adjustment rod and located above the bracket, a slot is opened on the adjustment rod, and the latch is arranged in the slot above the fixing block and cooperates with the slot.

[0023] Beneficial effects of the present invention:

[0024] 1. Precision irrigation, efficient use of water resources: The water flow distribution of the square nozzle is rectangular, which can accurately cover the crop planting area and effectively reduce the waste of water resources. Compared with the circular nozzle, the square nozzle avoids the water flow from being sprayed on non-target areas such as ridges and roads, and the water saving rate can reach more than 20%, which is especially suitable for areas with scarce water resources.

[0025] 2. Uniform irrigation improves crop yield and quality: The water flow of the square nozzle is evenly distributed, which can ensure that each crop in the irrigation area can get enough water, avoiding uneven crop growth caused by uneven irrigation. Uniform irrigation is beneficial to the development of crop roots, promotes nutrient absorption, and ultimately improves crop yield and quality.

[0026] 3. Flexible layout to adapt to various planting modes: The irrigation area of ​​the square sprinkler can be flexibly adjusted and personalized according to the crop type, planting density and terrain conditions. Whether it is vegetables and fruit trees planted in rows, or densely planted lawns and flowers, the square sprinkler can provide matching irrigation solutions to meet the diverse planting needs.

[0027] 4. Reduce pests and diseases, and reduce the use of pesticides: The precise irrigation method of the square nozzle prevents the leaves from being wet for a long time, reduces the environment for the breeding of germs and pests, and thus reduces the probability of pests and diseases. At the same time, precise irrigation also reduces the use of pesticides, which is beneficial to environmental protection and agricultural product safety.

[0028] 5. Automatic control, saving labor costs: Square sprinklers can be combined with automatic irrigation systems to achieve timing, quantitative, and fixed-point irrigation, greatly reducing manual operations and saving labor costs. The automatic irrigation system can also automatically adjust the irrigation plan according to parameters such as soil moisture and weather conditions, realize intelligent management, and improve irrigation efficiency.

[0029] In short, square irrigation area sprinklers will play an increasingly important role in modern agricultural irrigation in the future due to their precise, uniform, flexible and efficient characteristics. They can not only improve water resource utilization, increase crop yield and quality, but also reduce pests and diseases, reduce pesticide use, and save labor costs. They are an important technical means to promote sustainable agricultural development. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the invented device;

[0031] Figure 2 This is a schematic diagram of the running trajectory of the water hose;

[0032] Figure 3 It is a schematic diagram of a square irrigation area;

[0033] In the figure: 1-water pipe joint, 2-water outlet, 3-bracket, 4-water diversion cone head, 5-water diversion curved surface, 6-adjusting rod, 7-fixing block, 8-pin, 9-slot. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below through the accompanying drawings and embodiments, but the protection scope of the present invention is not limited to the contents described above.

[0035] Example 1: Figure 1 As shown, the sprinkler head with a square irrigation area includes a water pipe joint 1, a bracket 3, a water dispersion cone, and an adjusting mechanism. The bottom of the water pipe joint 1 is a water inlet connected to the water pipe, and the top is a water outlet 2. The water dispersion cone includes a water diversion cone head 4 and a water diversion curved surface 5 fixed on the top of the water diversion cone head. The adjusting mechanism includes an adjusting rod 6, a fixing block 7, and a latch 8. The bottom end of the adjusting rod is fixedly connected to the top of the water diversion curved surface 5, the upper end of the adjusting rod passes through the bracket 3, the fixing block 7 is sleeved on the adjusting rod and is located above the bracket, the adjusting rod is provided with a card slot 9, and the latch 8 is arranged in the card slot above the fixing block and cooperates with the card slot; the lower end of the bracket 3 is fixed on the water pipe joint 1, the water diversion cone head is located above the water outlet through the adjusting mechanism, and the adjusting mechanism is used to adjust the distance between the water diversion cone head and the water outlet;

[0036] The water dividing surface 5 is designed and obtained by the following method:

[0037] See Figure 2 The circular water circle sprayed from the water outlet and the water dividing cone head is divided into 360 parts with the water dividing cone head as the center. Each part is a water belt. The initial velocity V of each water belt in the vertical direction is y =V0sinα, the initial velocity in the horizontal direction is V x =V0cosα, where V0 is the velocity of the water belt when it contacts the water-break surface; α is the angle between V0 and the horizontal line;

[0038] In the horizontal direction of the hose running track, the horizontal distance from the irrigation area boundary to the water outlet is L=L1+L2, where the horizontal distance from the water outlet to the highest point of the hose spray arc track is L1, and the horizontal distance from the highest point of the hose spray arc track to the irrigation area boundary is L2;

[0039] according to V y =V0sinα, then the vertical distance h between the water outlet and the highest point of the hose running track is:

[0040]

[0041] Where: g is the acceleration due to gravity;

[0042] according to The time it takes for the water hose to pass through the L1 stage is

[0043]

[0044] Assume the height from the ground to the outlet is H, and the relationship between the trajectory height and time is:

[0045]

[0046] L=V0cosα(t1+t2)

[0047]

[0048] See Figure 3 , when the sprinkler is located at the center of the square irrigation area, the shortest distance from the sprinkler to the square boundary is d, then the relationship between L and d is:

[0049]

[0050]

[0051] Where: β is the angle between the shortest distance d and L, and L is the horizontal distance from the irrigation area boundary to the outlet;

[0052] Using Maple software, according to the relationship between L and d in step (2), calculate the angle α of each of the 360 ​​water belts in the square irrigation area when H = 1.2 m, d = 2 m, g = 10 N / kg, and V0 = 5 m / s;

[0053] A polar coordinate system is established in the plane, with the water cone head as the pole and the polar radius as 1. The coordinate point (x, y) of the angle α of each water hose is calculated according to x=sinβ and y=sinβ. According to the formula z=tanα, the z coordinate of the angle α of each water hose in the three-dimensional rectangular coordinate system is calculated to obtain the three-dimensional coordinates (x, y, z) of the angle α of 360 water hoses.

[0054] Since a square is both a centrally symmetrical and axially symmetrical figure, this embodiment calculates β=1-45°, and the other parts can be obtained based on symmetry. The calculation results are shown in the following table:

[0055]

[0056]

[0057] The above data are symmetrically copied to obtain the data of other parts. Based on this data, the surface water separation surface is fitted using Matlab software. The surface model is constructed in Solidworks software as the water separation surface of the nozzle. Figure 1 .

[0058] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A sprinkler nozzle with a square irrigation area, characterized in that: It comprises a water pipe joint (1), a bracket (3), a water dispersion cone, and an adjusting mechanism. The bottom of the water pipe joint (1) is a water inlet connected to a water pipe, and the top is a water outlet (2). The water dispersion cone comprises a water diversion cone head (4) and a water diversion curved surface (5) fixed to the top of the water diversion cone head. The water diversion curved surface (5) is fixedly connected to the bottom end of the adjusting mechanism. The lower end of the bracket (3) is fixed to the water pipe joint (1). The upper end of the adjusting mechanism is arranged on the bracket (3) so that the water diversion cone head is located above the water pipe joint (1). The water diversion cone head (4) is arranged above the water outlet. The adjusting mechanism is used to adjust the distance between the water diversion cone head and the water outlet. The water dividing surface (5) is designed and obtained by the following method: (1) The circular water circle sprayed from the water outlet and the water diversion cone head is divided into 360 parts with the water diversion cone head as the center. Each part is a water belt. The initial velocity V of each water belt in the vertical direction is y =V0sinα, the initial velocity in the horizontal direction is V x =V0cosα, where V0 is the velocity of the water belt when it contacts the water-break surface; α is the angle between V0 and the horizontal line; In the horizontal direction of the hose running track, the horizontal distance from the irrigation area boundary to the water outlet is L=L1+L2, where the horizontal distance from the water outlet to the highest point of the hose spray arc track is L1, and the horizontal distance from the highest point of the hose spray arc track to the irrigation area boundary is L2; according to V y =V0sinα, then the vertical distance h between the water outlet and the highest point of the hose running track is: Where: g is the acceleration due to gravity; according to The time it takes for the water hose to pass through the L1 stage is (2) Assume that the height from the ground to the outlet is H, and the relationship between the trajectory height and time is: L=V0cosα(t1+t2) (3) When the sprinkler is located at the center of the square irrigation area, the shortest distance from the sprinkler to the square boundary is d. The relationship between L and d is: Where: β is the angle between the shortest distance d and L, and L is the horizontal distance from the irrigation area boundary to the outlet; (4) Using Maple software, calculate the angle α of each of the 360 ​​water strips in the specific square irrigation area according to the relationship between L and d in step (2); A polar coordinate system was established in the plane, with the water dividing cone head as the pole and the polar radius of 1. The coordinate points x and y of the angle α of each water hose were calculated according to x=sinβ and y=sinβ. The z coordinate of the angle α of each water hose in the three-dimensional rectangular coordinate system was calculated according to the formula z=tanα, and the three-dimensional coordinates x, y, and z of the angle α of 360 water hoses were obtained. The water dividing surface was fitted in Matlab software, and the water dividing surface model was constructed in Solidworks.

2. The sprinkler nozzle with a square irrigation area according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting rod, a fixing block and a latch, wherein the bottom end of the adjusting rod is fixedly connected to the top of the water dividing curved surface, the top end of the adjusting rod passes through a bracket (3), the fixing block is sleeved on the adjusting rod and is located above the bracket, a slot is provided on the adjusting rod, and the latch is arranged in the slot above the fixing block and cooperates with the slot.

Images