A farmland irrigation rainfall measuring device

Abstract

The application relates to the field of farmland irrigation technology, in particular to a farmland irrigation rainfall measuring device which comprises a base and a collecting assembly. A water flow channel is arranged in the base, and a flowmeter is arranged on the water flow channel. The collecting assembly comprises a mounting ring and a conical collecting cover. One end of the mounting ring is mounted on the base and communicates with the water flow channel. The end of the collecting cover with a smaller diameter is fixedly connected to the end of the mounting ring away from the base, and the flared end of the collecting cover faces upwards. The device collects rainwater through the collecting cover, measures the water flow through the flowmeter, and obtains the rainfall per unit area by dividing the area of the collecting cover, so that the device has the advantages of simple structure, easy use and scientific basis for farmland irrigation.

Description

Technical Field

[0001] This application relates to the field of farmland irrigation technology, and in particular to a farmland irrigation rainfall measurement device. Background Technology

[0002] Farmland irrigation is a technical measure to supplement the water needed by crops. To ensure normal crop growth and achieve high and stable yields, crops must be supplied with sufficient water. Under natural conditions, insufficient or uneven rainfall often fails to meet the water requirements of crops. Therefore, artificial irrigation is necessary to compensate for the lack of natural rainfall.

[0003] Existing farmland irrigation devices simply pump water into the farmland and control the water supply based on flow meter monitoring. However, after rainfall, the moisture content in the farmland is high. Irrigation without accurately measuring the soil moisture content will only result in unnecessary waste of water resources. Therefore, it is necessary to effectively collect and measure rainfall to provide a scientific basis for farmland irrigation and thus achieve efficient use of water resources. Summary of the Invention

[0004] To measure rainfall, this application provides a farmland irrigation rainfall measurement device, which adopts the following technical solution:

[0005] A farmland irrigation rainfall measurement device includes a base, a water flow channel is provided inside the base, both ends of the water flow channel are connected to the surface of the base, and a flow meter is provided on the water flow channel;

[0006] The collection assembly includes a mounting ring and a conical collection cover. One end of the mounting ring is mounted on the base, and the inner cavity of the mounting ring is connected to one end of the water flow channel. The smaller diameter end of the collection cover is fixedly connected to the end of the mounting ring away from the base, and the flared end of the collection cover faces upward.

[0007] Furthermore, the collection cover includes multiple support rods and a collection cloth. One end of each support rod is rotatably connected to the circumference of the mounting ring, with the axis of rotation perpendicular to the warp direction of the mounting ring. The other end is positioned away from the mounting ring. The multiple support rods are arranged along the circumference of the mounting ring. The inner ring port of the collection cloth is coaxially fixed to one end of the mounting ring. The surface of the collection cloth is connected to the multiple support rods, and the multiple support rods and the collection cloth form an umbrella-shaped structure with openings away from the mounting ring.

[0008] Furthermore, one of the support rods is provided with a binding strap, and each end of the binding strap is provided with a magnetic buckle.

[0009] Furthermore, it also includes a support tube, one end of which is fixed to the base, and the inner cavity of the support tube is connected to one end of the water flow channel, while the other end is vertically upward; the mounting ring is coaxially fixed to the end of the support tube away from the base.

[0010] Furthermore, a filter screen is fixed inside the cavity of the end of the support tube away from the base.

[0011] Furthermore, the base has an internal cavity that is connected to the water flow channel, and the water in the base cavity is discharged from the bottom wall of the base cavity along the water flow channel.

[0012] Furthermore, the mounting ring is slidably connected to the support tube, and the mounting ring is provided with a fixing member for fixing the mounting ring to the support tube.

[0013] Furthermore, a first guide groove is provided on the peripheral wall of the support tube along the axis of the support tube, a second transition groove is provided at the end of the first guide groove away from the base along the axis of the support tube, and a third fixing groove is provided at the end of the second transition groove away from the first guide groove in a vertically downward direction, and the first guide groove, the second transition groove and the third fixing groove are connected in this way;

[0014] The fixing component is a guide block, which is installed on the mounting ring and is slidably connected in the first guide groove, the second transition groove and the third fixing groove.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. A farmland irrigation rainfall measurement device is designed, which collects rainwater through a collection hood, measures the water flow rate through a flow meter when the water flows through the water flow channel, and then divides the flow rate by the area of ​​the collection hood to obtain the rainfall per unit area.

[0017] 2. A farmland irrigation rainfall measurement device is designed, in which a collection cover is formed by a support rod and a collection cloth, which makes it easy for personnel to close the collection cover and also makes it easy for personnel to move and store the measurement device.

[0018] 3. A farmland irrigation rainfall measurement device is designed, in which the collection hood is installed at a high position through a support pipe to prevent debris from entering the collection hood and blocking the water flow channel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a farmland irrigation rainfall measurement device according to an embodiment of this application;

[0020] Figure 2 This is a cross-sectional view of a farmland irrigation rainfall measurement device according to an embodiment of this application;

[0021] Figure 3 This is a partial structural schematic diagram of a farmland irrigation rainfall measurement device according to an embodiment of this application.

[0022] Reference numerals: 1. Base; 11. Water flow channel; 12. Flow meter; 2. Collection assembly; 21. Mounting ring; 22. Collection cover; 221. Support rod; 222. Collection cloth; 223. Binding strap; 3. Support pipe; 31. First guide groove; 32. Second transition groove; 33. Third fixing groove; 4. Filter screen; 5. Fixing component. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0024] This application discloses a device for measuring rainfall during farmland irrigation.

[0025] Reference Figure 1 , Figure 2 and Figure 3 A farmland irrigation rainfall measurement device includes a base 1 and a collection component 2. The base 1 has a water flow channel 11 inside, and both ends of the water flow channel 11 are connected to the surface of the base 1. A flow meter 12 is provided on the water flow channel 11. In this application, one end of the water flow channel 11 is located on the upper surface of the base 1, and the other end is located on the side wall of the base 1. The collection component 2 includes a mounting ring 21 and a conical collection cover 22. One end of the mounting ring 21 is mounted on the base 1, and the inner cavity of the mounting ring 21 is connected to one end of the water flow channel 11. The smaller diameter end of the collection cover 22 is fixedly connected to the end of the mounting ring 21 away from the base 1, and the flared end of the collection cover 22 faces upward.

[0026] Therefore, on rainy days, personnel place the measuring device on an open ground. After the rainwater is collected by the collection cover 22, it flows into the water flow channel 11 through the inner cavity of the installation ring 21. The rainwater passes through the flow meter 12, which measures the amount of rainwater passing through. Based on the area of ​​the flared end of the collection cover 22, the amount of precipitation per unit area can be obtained, which helps personnel determine whether to irrigate again.

[0027] Reference Figure 1 In order to protect the flow meter 12, a receiving groove is provided on the surface of the base 1, and a closing door is provided at the opening of the groove, and the flow meter 12 is located in the receiving groove.

[0028] Reference Figure 1 and Figure 2To facilitate the movement and storage of the measuring device, the collection cover 22 includes multiple support rods 221 and a collection cloth 222. One end of the support rod 221 is rotatably connected to the circumference of the mounting ring 21, and the axis of rotation is perpendicular to the warp direction of the mounting ring 21. The other end is set towards the side away from the mounting ring 21. Multiple support rods 221 are set along the circumference of the mounting ring 21. The inner ring port of the collection cloth 222 is coaxially fixed to one end of the mounting ring 21. The surface of the collection cloth 222 is connected to multiple support rods 221. Multiple support rods 221 and collection cloth 222 form an umbrella-shaped structure with the opening facing away from the mounting ring 21. When the collection cloth 222 is fully opened, the collection cloth 222 is conical. The collection cloth 222 can be made of waterproof material, such as polyester fiber coated cloth or PVC composite material, to ensure that rainwater will not penetrate and leak.

[0029] In this way, personnel can close the collection cover 22 by joining multiple support rods 221 together, reducing the volume occupied and making it easier for personnel to move.

[0030] Reference Figure 1 and Figure 2 In order to secure the multiple support rods 221 that are folded up, one of the support rods 221 is provided with a binding strap 223, and each end of the binding strap 223 is provided with a magnetic buckle.

[0031] After the support rod 221 is folded up, it is secured with the straps 223 to facilitate subsequent relocation.

[0032] Reference Figure 1 and Figure 2 In order to reduce the amount of debris on the ground entering the water flow channel 11, a farmland irrigation rainfall measurement device also includes a support pipe 3. One end of the support pipe 3 is fixed to the base 1, and the inner cavity of the support pipe 3 is connected to one end of the water flow channel 11, while the other end is vertically upward; the mounting ring 21 is coaxially fixed to the end of the support pipe 3 away from the base 1.

[0033] The height of the collection cover 22 is increased by the support pipe 3 to prevent debris on the ground from being blown into the collection cover 22 during windy and rainy days.

[0034] Reference Figure 2 To further prevent debris from entering the water flow channel 11, a filter screen 4 is fixed inside the inner cavity of the support pipe 3 at the end away from the base 1.

[0035] The water flowing into the support pipe 3 is filtered through the filter screen 4.

[0036] Reference Figure 2 In order to avoid water accumulation in the collection cover 22 and support pipe 3 due to excessive rainfall in a short period of time and the water flow channel 11 not being able to drain in time, the base 1 is provided with a cavity. The cavity of the base 1 is connected to the water flow channel 11, and the water in the cavity of the base 1 is discharged from the bottom wall of the cavity of the base 1 along the water flow channel 11.

[0037] When the rainfall is too heavy, the rainwater is temporarily trapped in the inner cavity of the base 1. At the same time, the pipe diameter of the water flow channel 11 can be set to be smaller to keep the water flow through the flow meter 12 stable. Also, when a certain amount of water is trapped in the inner cavity, the weight of the base 1 can be increased, thereby improving the stability of the base 1.

[0038] Reference Figure 1 and Figure 2 To further facilitate the movement and storage of personnel, the mounting ring 21 is slidably connected to the support tube 3, and the mounting ring 21 is provided with a fixing member 5 for fixing the mounting ring 21 to the support tube 3;

[0039] After closing the support rod 221, the personnel move the mounting ring 21 from the top of the support tube 3 to the bottom of the support tube 3 to reduce the vertical length of the measuring device, so as to facilitate the personnel to move and store it. When it is necessary to open the collection cover 22, the mounting ring 21 is moved to the top of the support tube 3 and fixed by the fastener 5.

[0040] Reference Figure 1 and Figure 3 In order to fix the mounting ring 21 to the top of the support tube 3, a first guide groove 31 is provided on the periphery of the support tube 3 along the axis of the support tube 3. A second transition groove 32 is provided at the end of the first guide groove 31 away from the base 1 along the axis of the support tube 3. In this application, the second transition groove 32 is an arc-shaped groove with an included angle of 90°. A third fixing groove 33 is provided at the end of the second transition groove 32 away from the first guide groove 31 in a vertically downward direction. The first guide groove 31, the second transition groove 32 and the third fixing groove 33 are connected in this way.

[0041] The fixing element 5 is a guide block, which is installed on the mounting ring 21 and is slidably connected in the first guide groove 31, the second transition groove 32 and the third fixing groove 33.

[0042] When the operator moves the mounting ring 21 upward, the guide block moves from the bottom of the first guide groove 31 to the top of the first guide groove 31, and then rotates in the second transition groove 32 to above the third fixing groove 33. Then, under the action of gravity, the guide block moves into the third fixing groove 33. At this time, the upper surface of the mounting ring 21 is flush with the upper surface of the support tube 3.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for measuring rainfall for irrigation of agricultural fields, characterized in that, include: A base (1) is provided with a water flow channel (11) inside the base (1). Both ends of the water flow channel (11) are connected to the surface of the base (1). A flow meter (12) is provided on the water flow channel (11). The collection component (2) includes a mounting ring (21) and a conical collection cover (22). One end of the mounting ring (21) is mounted on the base (1), and the inner cavity of the mounting ring (21) is connected to one end of the water flow channel (11). The smaller diameter end of the collection cover (22) is fixedly connected to the end of the mounting ring (21) away from the base (1), and the flared opening of the collection cover (22) faces upward.

2. The device for calculating rainfall in agricultural field irrigation according to claim 1, characterized in that, The collection cover (22) includes multiple support rods (221) and a collection cloth (222). One end of the support rod (221) is rotatably connected to the periphery of the mounting ring (21), and the axis of rotation is perpendicular to the warp direction of the mounting ring (21). The other end is set towards the side away from the mounting ring (21). The multiple support rods (221) are arranged along the periphery of the mounting ring (21). The inner ring port of the collection cloth (222) is coaxially fixed to one end of the mounting ring (21). The surface of the collection cloth (222) is connected to the multiple support rods (221). The multiple support rods (221) and the collection cloth (222) form an umbrella-shaped structure with the opening facing away from the mounting ring (21).

3. The farmland irrigation rainfall measurement device according to claim 2, characterized in that, One of the support rods (221) is provided with a binding strap (223), and each end of the binding strap (223) is provided with a magnetic buckle.

4. The farmland irrigation rainfall measurement device according to claim 1, characterized in that, It also includes a support tube (3), one end of which is fixed to the base (1), and the inner cavity of the support tube (3) is connected to one end of the water flow channel (11), while the other end is vertically upward; the mounting ring (21) is coaxially fixed to the end of the support tube (3) away from the base (1).

5. The farmland irrigation rainfall measurement device according to claim 4, characterized in that, A filter screen (4) is fixed inside the cavity of the end of the support tube (3) away from the base (1).

6. The farmland irrigation rainfall measurement device according to claim 1, characterized in that, The base (1) has a cavity inside, the cavity of the base (1) is connected to the water flow channel (11), and the water in the cavity of the base (1) is discharged from the bottom wall of the cavity of the base (1) along the water flow channel (11).

7. The farmland irrigation rainfall measurement device according to claim 5, characterized in that, The mounting ring (21) is slidably connected to the support tube (3), and the mounting ring (21) is provided with a fixing member (5) for fixing the mounting ring (21) to the support tube (3).

8. The farmland irrigation rainfall measurement device according to claim 7, characterized in that, The peripheral wall of the support tube (3) is provided with a first guide groove (31) along the axis of the support tube (3). The end of the first guide groove (31) away from the base (1) is provided with a second transition groove (32) along the axis of the support tube (3). The end of the second transition groove (32) away from the first guide groove (31) is provided with a third fixing groove (33) in a vertically downward direction. The first guide groove (31), the second transition groove (32) and the third fixing groove (33) are connected in this way. The fixing member (5) is a guide block, which is installed on the mounting ring (21) and is slidably connected in the first guide groove (31), the second transition groove (32) and the third fixing groove (33).

Images