Testing device for simulating soil moisture infiltration of drop irrigation orchard

Abstract

The utility model relates to the technical field of soil research, and discloses a test device for simulating drip irrigation orchard soil moisture infiltration, which comprises a support table, a water tank, a soil containing box and a dropper, the soil containing box is rotatably mounted on the support table, the bottom of the soil containing box is provided with a drain hole, and the dropper is used for dripping water in the water tank into the soil containing box. A worm gear is installed at one end of the rotating shaft of the soil containing box, a worm meshed with the worm gear is installed on the supporting table, a gear motor is further fixed to the supporting table and used for driving the worm to rotate, a sliding groove perpendicular to the rotating shaft of the soil containing box is formed in the supporting table, a rack is installed in the sliding groove, and a gear meshed with the rack is further installed on the rotating shaft of the soil containing box. A balancing weight is installed at the end, away from the soil containing box, of the rack. Inclination of the soil containing box at different angles is achieved through cooperation of the worm gear and the worm, soil moisture infiltration conditions of different slopes can be simulated, soil moisture infiltration of different terrains can be measured, the structure is simple, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of soil research technology, and in particular to an experimental device for simulating soil water infiltration in drip-irrigated orchards. Background Technology

[0002] Groundwater, as a vital source of water for industry, agriculture, and residential use, has a significant impact on economic and social development and public health. Soil water infiltration, the movement of water through the soil surface into the soil, has a dual crucial influence on agricultural production and soil and water conservation. On the one hand, it directly relates to the amount of effective water available for crop absorption and utilization, thus affecting crop growth, development, and yield. On the other hand, infiltration also determines the intensity of soil erosion; good infiltration performance can reduce surface runoff and lower the risk of soil erosion. Therefore, infiltration tests can accurately understand the infiltration status under different soil textures and slope conditions.

[0003] Chinese utility model patent (authorization announcement number: CN206638653U, title: A portable and retractable leaching device) includes a support platform, a leaching column, a leaching nozzle bracket, a leaching nozzle, and a variable frequency pump. The support platform is placed on the ground, and a leaching column placement port is provided in the middle of the upper surface of the support platform. The leaching column is placed in the leaching column placement port. A triangular locking device for fixing the leaching column is provided on the support platform. A leaching nozzle bracket is provided on one side of the support platform, and a leaching nozzle is provided on the top of the leaching nozzle bracket, with the leaching nozzle located directly above the leaching column. The variable frequency pump is connected to the leaching nozzle through a rubber conduit to deliver liquid to the leaching nozzle. This invention uses a variable frequency pump to input the required liquid into the leaching system. Under the action of the leaching nozzle, it realistically simulates the actual rainfall situation and achieves uniform spraying of rain. Furthermore, the leaching nozzle support and leaching column are both retractable and detachable structures, which are convenient to carry and install, reduce the workload of experiments, and make it easy to build an experimental platform. However, the fixed vertical column cannot simulate the soil moisture infiltration conditions under different slopes. Utility Model Content

[0004] The purpose of this invention is to provide a test device for simulating soil water infiltration in drip-irrigated orchards, so as to overcome the shortcomings of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: A test device for simulating soil water infiltration in a drip-irrigated orchard, comprising a support platform, a water tank, a soil container, and a drip pipe. The support platform is disposed on one side of the water tank. The soil container is rotatably mounted on the support platform via a bearing seat. A drainage hole is provided at the bottom of the soil container. The drip pipe is used to spray water from the water tank into the soil container. A worm gear is installed at one end of the rotating shaft of the soil container. A worm gear meshing with the worm gear is rotatably mounted on the side of the support platform. A reduction motor is also fixed on the side of the support platform. The reduction motor is used to drive the worm gear to rotate. A groove perpendicular to the rotating shaft of the soil container is provided on the support platform. A rack is installed in the groove. A gear meshing with the rack is also installed on the rotating shaft of the soil container. A counterweight is installed at the end of the rack away from the rotating shaft of the soil container.

[0006] Preferably, the bottom and side walls of the soil container are separable, the bottom of the soil container is integrally formed with a protrusion, the drainage hole passes through the protrusion, and the four side walls of the soil container are fixedly connected, with the fixedly connected side walls being engaged with the protrusion.

[0007] Preferably, the water tank is located near the pivot of the soil container, and two partitions are fixed inside the water tank. One partition extends from the bottom of the water tank to the opening, and the other partition extends from the opening of the water tank to the bottom. The partition extending to the bottom is close to the pivot of the soil container, and the partition extending to the opening is located between the water inlet of the drip tube and the other partition.

[0008] Preferably, the bottom of the soil container is fixed with a support rib, which is located between the protrusion and the pivot of the soil container, and the support rib abuts against the side wall of the soil container.

[0009] Preferably, the platform of the support is inclined toward the water tank, and a water guide plate is fixed at the lowest point of the support.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] By using a worm gear and worm shaft, the soil container can be tilted at different angles, which can simulate the soil moisture infiltration on different slopes, thereby enabling the measurement of soil moisture infiltration in different terrains. The structure is simple and easy to use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0014] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0015] In the diagram, 1-support platform, 2-water tank, 3-soil container, 4-drip tube, 5-bearing seat, 6-worm gear, 7-worm, 8-gear motor, 9-rack, 10-gear, 11-counterweight, 12-partition, 13-support rib, 14-water guide plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 and 2 As shown, an experimental device for simulating soil water infiltration in drip-irrigated orchards includes a support platform 1, a water tank 2, a soil container 3, and drippers 4 (with detachable drippers evenly arranged on the drippers, allowing different drippers to be switched on and off depending on the tilt angle of the soil container 3, thereby adjusting the water infiltration point). The support platform 1 is located on one side of the water tank 2, and the soil container 3 is rotatably mounted on the support platform 1 via a bearing seat 5. The soil container 3 is preferably made of a transparent material, such as an acrylic sheet (to facilitate observation of water infiltration; otherwise, the infiltration dynamics cannot be observed). A drainage hole is provided at the bottom of the soil container 3. The drippers 4 are used to drip water from the water tank 2 into the soil container 3. Multiple soil containers 3 can be arranged side by side for testing. A worm gear 6 is installed at one end of the rotating shaft of the soil container 3, and a worm 7 that meshes with the worm gear 6 is rotatably mounted on the side of the support platform 1. A geared motor 8 is fixed to the side of the support platform 1. The geared motor 8 is used to drive the worm gear 7 to rotate. A groove perpendicular to the rotating shaft of the soil box 3 is opened on the support platform 1. A rack 9 is installed in the groove. A gear 10 that meshes with the rack 9 is also installed on the rotating shaft of the soil box 3. The soil box 3 can be tilted at different angles through the cooperation of the worm gear 6 and the worm 7. Preferably, a protractor is set next to the rotating shaft of the soil box 3 to conveniently and intuitively reflect the tilt angle of the soil box 3. It can simulate the soil water infiltration of different slopes, thereby realizing the measurement of soil water infiltration in different terrains. The structure is simple and easy to use. A counterweight 11 is installed at the end of the rack 9 away from the rotating shaft of the soil box 3 (a screw is welded on the rack 9, the counterweight 11 is fitted on the screw and then the nut is tightened to lock it). This can avoid the problem of the device overturning due to the shift of the center of gravity after the soil box 3 is tilted.

[0023] In this embodiment, as Figure 1-3 As shown, the bottom and side walls of the soil container 3 are separable. The bottom of the soil container 3 is integrally formed with a protrusion, through which a drainage hole passes. The four side walls of the soil container 3 are fixedly connected and are secured to the protrusion, which facilitates the disassembly and assembly of the soil container 3 during cleaning.

[0024] In this embodiment, as Figure 1-3As shown, the platform of the support 1 is inclined towards the water tank 2. A water guide plate 14 is fixed at the lowest point of the support 1 to recycle water and avoid waste. The water tank 2 is close to the pivot of the soil container 3. Two partitions 12 are fixed inside the water tank 2. One partition 12 extends from the bottom of the water tank 2 towards the opening, and the other partition 12 extends from the opening of the water tank 2 towards the bottom. The partition 12 extending towards the bottom is close to the pivot of the soil container 3, and the partition 12 extending towards the opening is located at the inlet of the drip tube 4 and the other partition. Between the plates 12, the inner cavity is divided into three chambers. When turbid water enters, the liquid level rises slowly in the first and second chambers. After the water breaks up the gap between the first partition 12 and the bottom of the tank, the liquid level in the second chamber rises slowly and calmly, making the water clear. Then the clear water flows over the second partition 12 and enters the third chamber. It is then pumped to the drip tube 4 to prevent mud and sand from clogging the drip tube 4. The structure is simple and easy to use. The first chamber is also equipped with a drain pipe (not shown in the figure).

[0025] In this embodiment, as Figure 1-3 As shown, a support rib 13 is fixed at the bottom of the soil container 3. The support rib 13 is located between the protrusion and the pivot of the soil container 3. The support rib 13 is pressed against the side wall of the soil container 3 to prevent the soil container 3 from tilting too much and detaching from the protrusion.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An experimental device for simulating soil water infiltration in a drip-irrigated orchard, comprising a support platform (1), a water tank (2), a soil container (3), and a drip pipe (4), wherein the support platform (1) is disposed on one side of the water tank (2), the soil container (3) is rotatably mounted on the support platform (1) via a bearing seat (5), the bottom of the soil container (3) is provided with a drainage hole, and the drip pipe (4) is used to drip water from the water tank (2) into the soil container (3), characterized in that: A worm gear (6) is installed at one end of the shaft of the soil container (3). A worm (7) that meshes with the worm gear (6) is rotatably installed on the side of the support platform (1). A reduction motor (8) is also fixed on the side of the support platform (1). The reduction motor (8) is used to drive the worm (7) to rotate. A groove perpendicular to the shaft of the soil container (3) is opened on the support platform (1). A rack (9) is installed in the groove. A gear (10) that meshes with the rack (9) is also installed on the shaft of the soil container (3). A counterweight (11) is installed at the end of the rack (9) away from the shaft of the soil container (3).

2. The test device for simulating soil water infiltration of drip irrigation orchard according to claim 1, characterized in that: The bottom and side walls of the soil container (3) are separable. The bottom of the soil container (3) is integrally formed with a protrusion. The drainage hole passes through the protrusion. The four side walls of the soil container (3) are fixedly connected and the fixedly connected side walls are stuck on the protrusion.

3. The test device for simulating soil water infiltration in drip irrigation orchard according to claim 1, characterized in that: The water tank (2) is close to the pivot of the soil container (3). Two partitions (12) are fixed inside the water tank (2). One partition (12) extends from the bottom of the water tank (2) toward the opening of the tank, and the other partition (12) extends from the opening of the water tank (2) toward the bottom. The partition (12) extending to the bottom is close to the pivot of the soil container (3), and the partition (12) extending toward the opening of the tank is located between the water inlet of the drip tube (4) and the other partition (12).

4. The test device for simulating soil water infiltration of drip irrigation orchard according to claim 2, characterized in that: The bottom of the soil container (3) is fixed with a support rib (13), which is located between the protrusion and the pivot of the soil container (3) and abuts against the side wall of the soil container (3).

5. The test device for simulating soil water infiltration in drip irrigation orchard according to claim 3, characterized in that: The platform of the support (1) is inclined toward the water tank (2), and a water guide plate (14) is fixed at the lowest point of the support (1).

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