Crop irrigation device capable of adjusting based on soil moisture content

Abstract

The utility model provides a crop irrigation device capable of adjusting based on soil moisture content, which relates to the technical field of irrigation and comprises a device body. The device body is provided with a normally-closed electromagnetic valve in the front-back direction, a threaded blind hole is formed in the middle of the bottom of the normally-closed electromagnetic valve, the normally-closed electromagnetic valve is connected with a humidity sensor in the up-down direction through a wire, inner threaded cylinders in the front-back direction are arranged in the front and back of the outer circumference of the humidity sensor, and a probe rod with external threads is arranged on the lower portion of the humidity sensor. A conical head is arranged at the lower end of a feeler lever of the humidity sensor, so that the humidity sensor is conveniently connected with the normally-closed electromagnetic valve through a wire, the soil moisture content is conveniently monitored through the humidity sensor, and the normally-closed electromagnetic valve is conveniently controlled through a monitored value of the humidity sensor; the problems that no measures for switching on and off according to the soil moisture content exist on the device, too much or too little irrigation moisture is easily caused, and a sensor is inconvenient to be additionally arranged on the device to control the electromagnetic valve to be switched on and off according to the soil moisture content are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of irrigation, and in particular relates to a crop irrigation device which is adjusted based on soil moisture content. Background Art

[0002] Crop irrigation, also known as agricultural irrigation, mainly refers to irrigation operations in agricultural farming areas. Irrigation is a technical measure to supplement the soil with water needed by crops. Under natural conditions, when the precipitation is insufficient or unevenly distributed and cannot meet the water requirements of crops, artificial irrigation must be carried out to make up for the lack of natural rainfall. Irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation.

[0003] Based on the above, the inventors found that the existing crop irrigation devices have the following deficiencies:

[0004] 1. There is no measure on the device to switch according to the soil moisture content, which may easily lead to excessive or insufficient irrigation water. It is not convenient to install sensors on the device to control the solenoid valve to switch according to the soil moisture content;

[0005] 2. There is no gripping measure on the sensor, which makes it difficult to insert the sensor into the soil. It is not convenient to add gripping measures to the sensor to make it easier to insert or pull the sensor out of the soil. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a crop irrigation device that is adjusted based on soil moisture content, so as to solve the problem that the existing device does not have any measures for switching according to the soil moisture content, which easily leads to excessive or insufficient irrigation water, and it is not convenient to install a sensor on the device to control the solenoid valve to switch according to the soil moisture; there is no gripping measure on the sensor, which makes the process of inserting the sensor into the soil more difficult, and it is not convenient to install a gripping measure on the sensor to make the sensor better bear the force to insert or pull out the inside of the soil.

[0007] The purpose and effect of the crop irrigation device adjusted based on soil moisture content of the utility model are achieved by the following specific technical means:

[0008] A crop irrigation device that adjusts based on soil moisture content, comprising a device body; the device body is provided with a normally closed solenoid valve in the front-to-back direction, a threaded blind hole is provided in the middle of the bottom of the normally closed solenoid valve, a humidity sensor in the upper and lower directions is connected to the normally closed solenoid valve through a wire, an internally threaded cylinder in the front-to-back direction is provided at the front and rear of the outer circumference of the humidity sensor, a probe rod with an external thread is provided at the lower part of the humidity sensor, and a conical head is provided at the lower end of the probe rod of the humidity sensor.

[0009] Furthermore, a rotating locking column in the left and right directions is installed inside the locking screw hole of the depth limit plate, a threaded rod is arranged on the right side of the rotating locking column, and a rotating circular plate with an anti-slip groove is arranged on the left end surface of the threaded rod of the rotating locking column.

[0010] Furthermore, a depth limit plate is threadedly installed on the probe rod of the humidity sensor, a threaded hole is opened in the center of the depth limit plate and passes through it from top to bottom, an anti-slip groove is arranged in a circular array on the outer circumference of the depth limit plate, and a locking screw hole is opened on the left side wall of the threaded hole of the depth limit plate and passes through it from left to right.

[0011] Furthermore, a regular hexagonal groove is provided on the outer end surface of the force-bearing gripping rod, and a frosted surface is provided on the outer circumferential surface of the force-bearing gripping rod.

[0012] Furthermore, a force-bearing gripping rod in the front-to-back direction is installed inside the internal threaded cylinder of the humidity sensor, and a threaded column is arranged on the inner end surface of the force-bearing gripping rod.

[0013] Furthermore, a regular hexagonal prism is provided on the top end surface of the ground-inserted fixing rod, and a threaded column is provided on the top end surface of the regular hexagonal prism of the ground-inserted fixing rod.

[0014] Furthermore, a ground fixing rod inserted into the ground in the up-and-down directions is installed inside the threaded blind hole of the normally closed solenoid valve, and a conical head is provided at the lower end of the ground fixing rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] It is convenient to connect the humidity sensor to the normally closed solenoid valve through a wire, to monitor the soil moisture content through the humidity sensor, and to control the normally closed solenoid valve through the monitoring value of the humidity sensor, which solves the problem that there is no measure on the device to switch according to the soil moisture content, which may easily lead to excessive or insufficient irrigation water and it is inconvenient to install sensors on the device to control the solenoid valve to switch according to the soil moisture.

[0017] The force-bearing gripping rod is conveniently installed on the humidity sensor through a thread, so that the force-bearing gripping rod can be conveniently gripped to force the humidity sensor to be inserted into or pulled out of the soil, thereby solving the problem that there is no gripping measure on the sensor, which makes the process of inserting the sensor into the soil difficult and it is inconvenient to add gripping measures to the sensor to make the sensor better bear the force to be inserted into or pulled out of the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the disassembled structure of the utility model.

[0020] Figure 3It is an assembly schematic diagram of a normally closed solenoid valve and a ground-inserted fixing rod of the utility model.

[0021] Figure 4 It is a schematic diagram of the assembly of the depth limit plate and the rotation locking column of the utility model.

[0022] Figure 5 It is an assembly schematic diagram of the humidity sensor and the force-bearing gripping rod of the utility model.

[0023] Figure 6 It is an assembly diagram of the humidity sensor and the depth limit plate of the utility model.

[0024] In the figure: 1. Device body; 2. Normally closed solenoid valve; 3. Ground fixing rod; 4. Humidity sensor; 5. Force gripping rod; 6. Depth limit plate; 7. Rotation locking column. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0026] Embodiment 1:

[0027] As attached Figure 1 To Attachment Figure 6 As shown:

[0028] The utility model provides a crop irrigation device adjusted based on soil moisture content, comprising a device body 1; the device body 1 is provided with a normally closed electromagnetic valve 2 in the front-to-back direction, which is convenient for realizing irrigation switch, a threaded blind hole is provided in the middle of the bottom of the normally closed electromagnetic valve 2, which is convenient for inserting a ground fixing rod 3 to be installed through threads, a humidity sensor 4 in the upper and lower directions is connected to the normally closed electromagnetic valve 2 through a wire, which is convenient for the humidity sensor 4 to monitor soil moisture, and convenient for controlling the normally closed electromagnetic valve 2 through the electrical signal of the humidity sensor 4, the model of the humidity sensor 4 is SM150T, and the outer circumference of the humidity sensor 4 is provided with an inner threaded barrel in the front-to-back direction. , it is convenient for the force-bearing grasping rod 5 to be disassembled and assembled through the thread. A probe rod with an external thread is arranged at the lower part of the humidity sensor 4, which is convenient for inserting into the soil for moisture monitoring. A conical head is arranged at the lower end of the probe rod of the humidity sensor 4, which is convenient for breaking the soil. A ground-inserted fixing rod 3 in the upper and lower directions is installed inside the threaded blind hole of the normally closed solenoid valve 2, which is convenient for the ground-inserted fixing rod 3 to be inserted into the ground to carry the normally closed solenoid valve 2. A conical head is arranged at the lower end of the ground-inserted fixing rod 3, which is convenient for breaking the soil. A regular hexagonal prism is arranged on the top end face of the ground-inserted fixing rod 3, which is convenient for rotation through tools. A threaded column is arranged on the top end face of the regular hexagonal prism of the ground-inserted fixing rod 3, which is convenient for disassembly and assembly through threads.

[0029] Among them, a force-bearing gripping rod 5 in the front-to-back direction is installed inside the internal threaded tube of the humidity sensor 4, which is convenient for applying force to the humidity sensor 4 through the force-bearing gripping rod 5. A threaded column is provided on the inner end face of the force-bearing gripping rod 5, which is convenient for disassembly and assembly through threads. A regular hexagonal groove is provided on the outer end face of the force-bearing gripping rod 5, which is convenient for rotation through tools. A frosted surface is provided on the outer circumferential surface of the force-bearing gripping rod 5, which is convenient for gripping and anti-slip. A depth limit plate 6 is installed on the probe rod of the humidity sensor 4 through threads, which is convenient for limiting the insertion depth of the humidity sensor 4. A threaded hole is provided in the center of the depth limit plate 6 that passes through from top to bottom. , it is convenient for the depth limit plate 6 to be installed on the humidity sensor 4 through threads. The outer circumferential annular array of the depth limit plate 6 is provided with anti-skid grooves, which is convenient for rotation and anti-skid. The left side wall of the threaded hole of the depth limit plate 6 is provided with left and right penetrating locking screw holes, which is convenient for the rotation locking column 7 to be installed through threads. The locking screw hole of the depth limit plate 6 is internally installed with left and right rotating locking columns 7, which is convenient for locking and stopping the depth limit plate 6. A threaded rod is provided on the right side of the rotating locking column 7, which is convenient for disassembly and assembly through threads. The left end face of the threaded rod of the rotating locking column 7 is provided with a rotating circular plate with anti-skid grooves, which is convenient for rotation and anti-skid.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the utility model, Figure 1As shown, irrigation hoses are installed in front and behind the normally closed solenoid valve 2, and the irrigation hoses are in a cut-off state. At the same time, the power line in front of the normally closed solenoid valve 2 is in a cut-off state. When the device body 1 is in use, the ground fixing rod 3 is inserted into the soil to support the normally closed solenoid valve 2, the normally closed solenoid valve 2 is connected to the power supply, the irrigation hoses are connected to the front and back of the normally closed solenoid valve 2, and the force-bearing gripping rod 5 is held to insert the humidity sensor 4 into the ground where the soil moisture content needs to be monitored. Pay attention to setting the upper and lower limit values ​​of the humidity sensor 4. At the same time, the insertion depth of the humidity sensor 4 can be limited by the depth limit plate 6. When the insertion depth of the humidity sensor 4 is adjusted, the rotary locking column 7 is rotated to engage with the depth limit plate 6 threadedly, so that the rotary locking column 7 moves to the left through the threaded engagement to loosen the top of the humidity sensor 4, thereby loosening the lock on the depth limit plate 6, and the depth limit plate 6 is rotated forward to engage with the humidity sensor 4 threadedly. The depth limit plate 6 is engaged with the thread, so that the depth limit plate 6 rises through the thread engagement, thereby deepening the insertion depth of the humidity sensor 4, and the depth limit plate 6 is rotated in the opposite direction to engage with the humidity sensor 4 thread, so that the depth limit plate 6 descends through the thread engagement, thereby shallowing the insertion depth of the humidity sensor 4. After the depth limit plate 6 is adjusted, the rotary locking column 7 is rotated to engage with the depth limit plate 6 thread, so that the rotary locking column 7 moves to the right through the thread engagement to tighten the probe rod of the humidity sensor 4, thereby achieving the locking of the depth limit plate 6. When the soil moisture content monitored by the humidity sensor 4 drops to the lower limit value, the humidity sensor 4 sends a signal to the normally closed solenoid valve 2, so that the normally closed solenoid valve 2 is energized to start irrigation. When the soil moisture content monitored by the humidity sensor 4 rises to the upper limit value, the humidity sensor 4 sends a signal to the normally closed solenoid valve 2, so that the normally closed solenoid valve 2 loses power to close irrigation, thereby irrigating crops according to the soil moisture content.

[0032] Embodiment 2:

[0033] The difference from the first embodiment is that the regular hexagonal prism of the ground-inserted fixing rod 3 can also be set as a regular heptagonal prism, so that the ground-inserted fixing rod 3 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and disassembling the ground-inserted fixing rod 3.

[0034] Embodiment three:

[0035] The difference from the first embodiment is that the regular hexagonal groove of the force-bearing grasping rod 5 can also be set as a regular heptagonal groove, so that the force-bearing grasping rod 5 can only be rotated by a special tool that cooperates with the regular heptagonal groove, preventing non-staff from rotating and disassembling the force-bearing grasping rod 5.

Claims

1. A crop irrigation device that adjusts based on soil moisture content, characterized in that: The device comprises a device body (1); the device body (1) is provided with a normally closed electromagnetic valve (2) in the front-to-back direction, a threaded blind hole is provided in the middle of the bottom of the normally closed electromagnetic valve (2), a humidity sensor (4) in the upper and lower directions is connected to the normally closed electromagnetic valve (2) through a wire, an internal threaded cylinder in the front-to-back direction is provided at the front and rear of the outer circumference of the humidity sensor (4), a probe rod with an external thread is provided at the lower part of the humidity sensor (4), and a conical head is provided at the lower end of the probe rod of the humidity sensor (4).

2. A crop irrigation device for adjusting based on soil moisture content as claimed in claim 1, characterized in that: A ground fixing rod (3) inserted in the up-and-down direction is installed inside the threaded blind hole of the normally closed solenoid valve (2), and a conical head is arranged at the lower end of the ground fixing rod (3).

3. A crop irrigation device that adjusts based on soil moisture content as claimed in claim 2, characterized in that: The top end surface of the ground-inserting fixing rod (3) is provided with a regular hexagonal prism, and the top end surface of the regular hexagonal prism of the ground-inserting fixing rod (3) is provided with a threaded column.

4. A crop irrigation device for adjusting based on soil moisture content as claimed in claim 1, characterized in that: A force-bearing gripping rod (5) in the front-to-back direction is installed inside the internal threaded cylinder of the humidity sensor (4), and a threaded column is arranged on the inner end surface of the force-bearing gripping rod (5).

5. A crop irrigation device for adjusting based on soil moisture content as claimed in claim 4, characterized in that: The outer end surface of the force-bearing gripping rod (5) is provided with a regular hexagonal groove, and the outer circumferential surface of the force-bearing gripping rod (5) is provided with a frosted surface.

6. A crop irrigation device that adjusts based on soil moisture content as claimed in claim 4, characterized in that: A depth stop plate (6) is threadedly mounted on the probe rod of the humidity sensor (4); a threaded hole extending vertically through the depth stop plate (6) is provided at the center of the depth stop plate (6); an anti-slip groove is provided in a circular array on the outer circumference of the depth stop plate (6); and a locking screw hole extending horizontally through the depth stop plate (6) is provided on the left side wall of the threaded hole of the depth stop plate (6).

7. A crop irrigation device that adjusts based on soil moisture content as claimed in claim 6, characterized in that: A left-right rotating locking column (7) is installed inside the locking screw hole of the depth limit plate (6), a threaded rod is arranged on the right side of the rotating locking column (7), and a rotating circular plate with an anti-slip groove is arranged on the left end surface of the threaded rod of the rotating locking column (7).

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