Soil moisture content detection station

Abstract

The invention relates to the technical field of soil detection, in particular to a soil moisture content detection station which comprises a movable base, a detection mechanism is fixedly connected to the top of the movable base, cleaning mechanisms are arranged on the top of the movable base and located on the two sides of the detection mechanism, and a controller is installed on the top of the movable base. A storage battery is installed at the position, close to the controller, of the top of the movable base. The detection mechanism comprises a sampling box fixedly connected to the top of the movable base, a detection rod is slidably connected to the interior of the sampling box, a piston plate is slidably connected to the position, above the detection rod, in the sampling box, and a rotating motor is fixedly connected to the center of the interior of the piston plate. The soil moisture content of deep soil is detected by utilizing the detection mechanism in the device, so that the problem that the accuracy of a detection result is relatively poor as an existing soil moisture content detection station cannot extract a deep soil sample of a field is solved.

Description

Technical Field

[0001] The invention relates to the technical field of soil detection, in particular to a soil moisture detection station. Background Art

[0002] A soil moisture testing station is a device used to detect soil moisture conditions, but existing soil moisture testing stations still have shortcomings. Specifically, existing soil moisture testing stations are unable to extract soil samples deep in the fields, resulting in poor accuracy of test results.

[0003] Therefore, a soil moisture detection station is needed to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a soil moisture detection station to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A soil moisture detection station comprises a mobile base, a detection mechanism is fixedly connected to the top of the mobile base, cleaning mechanisms are arranged on the top of the mobile base and on both sides of the detection mechanism, a controller is installed on the top of the mobile base, and a storage battery is installed on the top of the mobile base and near the controller;

[0007] The detection mechanism includes a sampling box fixedly connected to the top of the mobile base, a detection rod is slidably connected inside the sampling box, a piston plate is slidably connected inside the sampling box and above the detection rod, a rotating motor is fixedly connected at the inner center of the piston plate, a reset spring is fixedly connected to the front, back and both sides of the top center of the piston plate, a drilling bit is fixedly connected to the bottom of the detection rod, a detection groove is opened inside the detection rod and near the position of the drilling bit, a fixing rod is fixedly connected at the center of the inner wall of the detection groove, a soil moisture detection sensor is fixedly connected inside the fixing rod, and the inner wall of the detection groove and the front, back and both sides of the fixing rod are provided with A sampling slot, wherein a sampling scraper is rotatably connected inside the sampling slot, a sealing gasket is fixedly connected to the outer wall of the sampling scraper and inside the sampling slot, a push-pull electromagnet is fixedly connected inside the detection rod and near the sampling scraper, a connecting rod is fixedly connected to the outer wall of the sampling scraper and near the push-pull electromagnet, an upper volute spring is fixedly connected inside the sampling scraper and near the push-pull electromagnet, a sampling slot is provided on the inner wall of the detection slot and below the sampling slot, a baffle is rotatably connected inside the sampling slot, a lower volute spring is fixedly connected inside the baffle, an electromagnet is fixedly connected inside the baffle, and a displacement sensor is installed inside the sampling scraper.

[0008] As a preferred solution of the present invention, the cleaning mechanism includes a cleaning box fixedly connected to the outer wall of the movable base, a guide tube is slidably connected to the interior of the cleaning box and at a corresponding position of the sampling slot, a micro air pump is fixedly connected to the outer wall of the guide tube and in the cleaning box, an air pipe is fixedly connected to the top of the guide tube, a push plate is fixedly connected to the outer wall of the guide tube at a position away from the micro air pump, an electric push rod is fixedly connected to the outer wall of the push plate and above and below the guide tube, and solenoid valves are installed inside the guide tube and the air tube.

[0009] As a preferred solution of the present invention, the detection mechanism and the cleaning mechanism are both provided with multiple groups, and the connection mode between the controller and the battery is electrical connection.

[0010] As a preferred solution of the present invention, the sampling box, detection rod, fixed rod, baffle and sampling scraper are all made of stainless steel, the detection rod passes through and extends into the piston plate, the sampling box passes through and extends under the movable base, and the connection between the lower volute spring and the detection rod, the upper volute spring and the detection rod, the rotating motor and the detection rod, and the reset spring and the sampling box are all fixed connections.

[0011] As a preferred solution of the present invention, the piston plate and the sealing gasket are both made of silicone, the sampling scraper is designed as an arc-shaped structure, the sample outlet groove and the sample inlet groove are both obliquely opened in the detection rod, and the connection between the detection rod and the piston plate is a rotational connection.

[0012] As a preferred solution of the present invention, the sampling scraper, push-pull electromagnet and upper scroll spring are each provided in four groups, the soil moisture detection sensor is provided in multiple groups, and the rotating motor, soil moisture detection sensor, push-pull electromagnet, electromagnet and displacement sensor are all electrically connected to the controller.

[0013] As a preferred solution of the present invention, the cleaning box and the push plate are both made of aluminum alloy, the air pipe passes through the cleaning box and extends into the sampling box, and the push plate and the cleaning box are connected by a sliding connection.

[0014] As a preferred solution of the present invention, the guide tube is made of a PVC plastic hose, the cleaning box is designed as an L-shaped structure, and the connection method between the micro air pump, the solenoid valve and the electric push rod and the controller is electrical connection.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, a soil moisture detection station is designed, and the detection mechanism in the device is used to detect the moisture content of deep soil. The mobile base is pushed into the field, and the controller opens the solenoid valve in the air pipe. The controller starts the micro air pump, and the micro air pump sends air into the sampling box through the air pipe. The air entering the sampling box will push the piston plate and the detection rod to move downward, and the descending detection rod will be inserted into the soil. The displacement sensor will detect the moving distance of the sampling scraper in the detection rod. The controller calculates the depth of the sampling scraper in the soil according to the data of the displacement sensor and the initial height of the sampling scraper. When the sampling scraper moves to the appropriate depth, the controller closes the solenoid valve in the air pipe, and the air is The air no longer flows into the sampling box, the piston plate and the detection rod no longer move downward, and the controller starts the push-pull electromagnet, which pulls the sampling scraper to rotate outward, and the sampling scraper rotating outward will be inserted into the soil. The controller starts the rotating motor, and the rotating motor drives the detection rod and the sampling scraper to rotate. The rotating sampling scraper will scrape off the soil around the detection rod, and the scraped soil will flow into the detection groove along the sampling groove. The soil moisture detection sensor will detect the moisture content of the soil falling into the detection groove, and the soil moisture conditions at any depth can be detected more accurately, which solves the problem that the existing soil moisture detection station cannot extract soil samples deep in the field, resulting in poor accuracy of the detection results.

[0017] 2. In the present invention, a soil moisture detection station is designed, and a cleaning mechanism in the device is used to clean the detection rod. After the detection is completed, the controller turns off the electromagnet, and the electromagnet no longer attracts the baffle. The soil sample in the detection groove will push the baffle to rotate outward, and the baffle rotating outward will no longer block the sample outlet groove. The soil sample flows out along the sample outlet groove. At the same time, a micro air pump sends air into the detection groove through a guide tube. The high-speed air spray will blow away the residual soil in the detection groove, thereby cleaning the soil sample in the detection rod, solving the problem that the residual soil sample inside the existing soil moisture detection station is inconvenient to clean, which is easy to affect the next detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a partial front cross-sectional view of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 It is a top cross-sectional view of the detection rod of the present invention;

[0022] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0023] In the figure: 1. mobile base; 2. detection mechanism; 3. cleaning mechanism; 4. controller; 5. battery; 201. sampling box; 202. detection rod; 203. piston plate; 204. rotating motor; 205. reset spring; 206. earth drilling drill; 207. detection slot; 208. fixing rod; 209. soil moisture detection sensor; 210. sample feeding slot; 211. sampling scraper; 212. sealing gasket; 213. push-pull electromagnet; 214. connecting rod; 215. upper scroll spring; 216. sample outlet slot; 217. baffle; 218. lower scroll spring; 219. electromagnet; 220. displacement sensor; 301. cleaning box; 302. guide tube; 303. micro air pump; 304. air pipe; 305. push plate; 306. electric push rod; 307. solenoid valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] For examples, see Figure 1-5 , the present invention provides a technical solution:

[0029] A soil moisture detection station comprises a mobile base 1, a detection mechanism 2 is fixedly connected to the top of the mobile base 1, a cleaning mechanism 3 is arranged on the top of the mobile base 1 and on both sides of the detection mechanism 2, a controller 4 is installed on the top of the mobile base 1, and a storage battery 5 is installed on the top of the mobile base 1 and near the controller 4;

[0030] The detection mechanism 2 and the cleaning mechanism 3 are both provided with multiple groups, and the connection mode between the controller 4 and the battery 5 is electrical connection;

[0031] In this embodiment, reference Figure 2-5 The detection mechanism 2 includes a sampling box 201 fixedly connected to the top of the mobile base 1, a detection rod 202 is slidably connected inside the sampling box 201, a piston plate 203 is slidably connected inside the sampling box 201 and above the detection rod 202, a rotating motor 204 is fixedly connected at the center of the inner part of the piston plate 203, a return spring 205 is fixedly connected to the front, back and both sides of the top center of the piston plate 203, a drilling bit 206 is fixedly connected to the bottom of the detection rod 202, a detection groove 207 is opened inside the detection rod 202 and near the drilling bit 206, a fixed rod 208 is fixedly connected at the center of the inner wall of the detection groove 207, a soil moisture detection sensor 209 is fixedly connected inside the fixed rod 208, and a sampling groove 210 is opened on the inner wall of the detection groove 207 and on the front, back and both sides of the fixed rod 208 , a sampling scraper 211 is rotatably connected inside the sampling slot 210, a sealing gasket 212 is fixedly connected to the outer wall of the sampling scraper 211 and inside the sampling slot 210, a push-pull electromagnet 213 is fixedly connected inside the detection rod 202 and near the sampling scraper 211, a connecting rod 214 is fixedly connected to the outer wall of the sampling scraper 211 and near the push-pull electromagnet 213, an upper volute spring 215 is fixedly connected inside the sampling scraper 211 and near the push-pull electromagnet 213, a sample outlet slot 216 is opened on the inner wall of the detection slot 207 and below the sampling slot 210, a baffle 217 is rotatably connected inside the sample outlet slot 216, a lower volute spring 218 is fixedly connected inside the baffle 217, an electromagnet 219 is fixedly connected inside the baffle 217, and a displacement sensor 220 is installed inside the sampling scraper 211;

[0032] The sampling box 201, the detection rod 202, the fixed rod 208, the baffle 217 and the sampling scraper 211 are all made of stainless steel. The detection rod 202 passes through and extends into the piston plate 203. The sampling box 201 passes through and extends to the bottom of the movable base 1. The lower volute spring 218 and the detection rod 202, the upper volute spring 215 and the detection rod 202, the rotating motor 204 and the detection rod 202, and the reset spring 205 and the sampling box 201 are all fixedly connected. The piston plate 203 and the sealing gasket 212 are all made of silicone. The sample scraper 211 is designed as an arc structure, the sample outlet slot 216 and the sample inlet slot 210 are both inclinedly opened in the detection rod 202, the connection mode of the detection rod 202 and the piston plate 203 is a rotation connection, the sampling scraper 211, the push-pull electromagnet 213 and the upper scroll spring 215 are all provided with four groups, the soil moisture detection sensor 209 is provided with multiple groups, and the rotary motor 204, the soil moisture detection sensor 209, the push-pull electromagnet 213, the electromagnet 219 and the displacement sensor 220 are all electrically connected to the controller 4;

[0033] In this embodiment, reference Figure 2 The cleaning mechanism 3 includes a cleaning box 301 fixedly connected to the outer wall of the mobile base 1, a guide tube 302 is slidably connected inside the cleaning box 301 and at a corresponding position of the sample injection slot 210, a micro air pump 303 is fixedly connected to the outer wall of the guide tube 303 and inside the cleaning box 301, an air pipe 304 is fixedly connected to the top of the guide tube 303, a push plate 305 is fixedly connected to the outer wall of the guide tube 302 and at a position away from the micro air pump 303, an electric push rod 306 is fixedly connected to the outer wall of the push plate 305 and above and below the guide tube 302, and electromagnetic valves 307 are installed inside the guide tube 302 and the air pipe 304;

[0034] The cleaning box 301 and the push plate 305 are both made of aluminum alloy, the air pipe 304 runs through the cleaning box 301 and extends into the sampling box 201, the push plate 305 and the cleaning box 301 are connected by sliding connection, the guide tube 302 is made of PVC plastic hose, the cleaning box 301 is an L-shaped structure design, and the micro air pump 303, the solenoid valve 307 and the electric push rod 306 are all connected to the controller 4 by electrical connection.

[0035] The working process of the present invention is as follows: when the soil moisture detection station designed by the present invention is used, the mobile base 1 is pushed into the field, the controller 4 opens the solenoid valve 307 in the air pipe 304 and starts the micro air pump 303, the micro air pump 303 sends air into the sampling box 201 through the air pipe 304, the air entering the sampling box 201 will push the piston plate 203 and the detection rod 202 to move downward, the descending detection rod 202 will be inserted into the soil, the displacement sensor 220 will detect the moving distance of the sampling scraper 211 in the detection rod 202, the controller 4 calculates the depth of the sampling scraper 211 in the soil according to the data of the displacement sensor 220 and the initial height of the sampling scraper 211, and when the sampling scraper 211 moves to the appropriate depth After that, the controller 4 closes the electromagnetic valve 307 in the air pipe 304, the air no longer flows into the sampling box 201, the piston plate 203 and the detection rod 202 no longer move downward, the controller 4 starts the push-pull electromagnet 213, the push-pull electromagnet 213 pushes the sampling scraper 211 to rotate outward through the connecting rod 214, the sampling scraper 211 rotating outward will be inserted into the soil, the controller 4 starts the rotating motor 204, the rotating motor 204 drives the detection rod 202 and the sampling scraper 211 to rotate, the rotating sampling scraper 211 will scrape off the soil around the detection rod 202, the scraped soil will flow into the detection slot 207 along the sampling slot 210, and the soil moisture detection sensor 209 will detect the moisture content of the soil falling into the detection slot 207;

[0036] After the detection is completed, the push-pull electromagnet 213 no longer presses against the connecting rod 214, and the upper volute spring 215 drives the sampling scraper 211 to rotate in the opposite direction. The sampling scraper 211 rotating in the opposite direction returns to the sampling slot 201, and the micro air pump 303 extracts the air in the sampling box 201 through the air pipe 304. The reset spring 205 pulls the piston plate 203 and the detection rod 202 to move upward, and the detection rod 202 moving upward will be separated from the soil and return to the sampling box 201.

[0037] The controller 4 turns off the electromagnet 219, and the electromagnet 219 no longer attracts the baffle 217. The soil sample in the detection slot 207 pushes the baffle 217 to rotate outward, and the baffle 217 rotating outward no longer blocks the sample outlet slot 216. The soil sample flows out along the sample outlet slot 216. The controller 4 starts the push-pull electromagnet 213, and the push-pull electromagnet 213 pushes the sampling scraper 211 to rotate outward through the connecting rod 214. The sampling scraper 211 rotating outward no longer blocks the sample inlet slot 210. The controller 4 starts the electromagnet 219. The electric push rod 306 drives the guide tube 302 to move outward through the push plate 305. The guide tube 302 moving outward will enter the sampling box 210 and be inserted into the sampling slot 210. The controller 4 opens the solenoid valve 307 in the guide tube 302 and starts the micro air pump 302. The micro air pump 302 sends air into the detection rod 202 through the guide tube 302. The high-speed airflow will blow away the residual soil in the detection slot 207, and the blown-away soil will flow out along the sample outlet slot 216.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil moisture detection station, comprising a mobile base (1), characterized in that: The top of the mobile base (1) is fixedly connected to a detection mechanism (2); the top of the mobile base (1) and both sides of the detection mechanism (2) are provided with cleaning mechanisms (3); the top of the mobile base (1) is provided with a controller (4); and the top of the mobile base (1) and a storage battery (5) is provided near the controller (4); The detection mechanism (2) comprises a sampling box (201) fixedly connected to the top of the mobile base (1); a detection rod (202) is slidably connected inside the sampling box (201); a piston plate (203) is slidably connected inside the sampling box (201) and above the detection rod (202); a rotating motor (204) is fixedly connected at the center of the piston plate (203); a return spring (205) is fixedly connected to the front, back and both sides of the top center of the piston plate (203); A drilling bit (206) is fixedly connected to the bottom of the detection rod (202); a detection groove (207) is provided inside the detection rod (202) and near the drilling bit (206); a fixing rod (208) is fixedly connected at the center of the inner wall of the detection groove (207); a soil moisture detection sensor (209) is fixedly connected inside the fixing rod (208); and a sample injection groove (210) is provided on the inner wall of the detection groove (207) and on the front, back and both sides of the fixing rod (208). The sampling scraper (211) is rotatably connected inside the sampling slot (210), a sealing gasket (212) is fixedly connected to the outer wall of the sampling scraper (211) and inside the sampling slot (210), a push-pull type electromagnet (213) is fixedly connected inside the detection rod (202) and near the sampling scraper (211), a connecting rod (214) is fixedly connected to the outer wall of the sampling scraper (211) and near the push-pull type electromagnet (213), and the sampling scraper (211) is fixedly connected to the inner wall and near the push-pull type electromagnet (213). An upper volute spring (215) is fixedly connected at the position of the push-pull electromagnet (213); a sample outlet groove (216) is provided on the inner wall of the detection groove (207) and below the sample inlet groove (210); a baffle (217) is rotatably connected inside the sample outlet groove (216); a lower volute spring (218) is fixedly connected inside the baffle (217); an electromagnet (219) is fixedly connected inside the baffle (217); and a displacement sensor (220) is installed inside the sampling scraper (211).

2. A soil moisture detection station according to claim 1, characterized in that: The cleaning mechanism (3) comprises a cleaning box (301) fixedly connected to the outer wall of the mobile base (1); a guide tube (302) is slidably connected inside the cleaning box (301) and at a corresponding position of the sample injection slot (210); a micro air pump (303) is fixedly connected to the outer wall of the guide tube (303) and inside the cleaning box (301); an air pipe (304) is fixedly connected to the top of the guide tube (303); a push plate (305) is fixedly connected to the outer wall of the guide tube (302) and at a position away from the micro air pump (303); an electric push rod (306) is fixedly connected to the outer wall of the push plate (305) and above and below the guide tube (302); and electromagnetic valves (307) are installed inside the guide tube (302) and the air pipe (304).

3. A soil moisture detection station according to claim 1, characterized in that: The detection mechanism (2) and the cleaning mechanism (3) are both provided with multiple groups, and the controller (4) is connected to the battery (5) in an electrical manner.

4. A soil moisture detection station according to claim 1, characterized in that: The sampling box (201), the detection rod (202), the fixed rod (208), the baffle (217) and the sampling scraper (211) are all made of stainless steel; the detection rod (202) passes through and extends into the piston plate (203); the sampling box (201) passes through and extends below the movable base (1); the lower volute spring (218) and the detection rod (202), the upper volute spring (215) and the detection rod (202), the rotating motor (204) and the detection rod (202), and the reset spring (205) and the sampling box (201) are all connected in a fixed manner.

5. A soil moisture detection station according to claim 1, characterized in that: The piston plate (203) and the sealing gasket (212) are both made of silicone, the sampling scraper (211) is designed as an arc-shaped structure, the sample outlet groove (216) and the sample inlet groove (210) are both obliquely opened in the detection rod (202), and the connection mode between the detection rod (202) and the piston plate (203) is a rotational connection.

6. A soil moisture detection station according to claim 1, characterized in that: The sampling scraper (211), the push-pull electromagnet (213) and the upper scroll spring (215) are all provided in four groups, the soil moisture detection sensor (209) is provided in multiple groups, and the rotating motor (204), the soil moisture detection sensor (209), the push-pull electromagnet (213), the electromagnet (219) and the displacement sensor (220) are all connected to the controller (4) in an electrically connected manner.

7. A soil moisture detection station according to claim 2, characterized in that: The cleaning box (301) and the pushing plate (305) are both made of aluminum alloy, the air pipe (304) passes through the cleaning box (301) and extends into the sampling box (201), and the pushing plate (305) and the cleaning box (301) are connected in a sliding manner.

8. A soil moisture detection station according to claim 2, characterized in that: The guide tube (302) is made of a PVC plastic hose, the cleaning box (301) is designed as an L-shaped structure, and the connection method between the micro air pump (303), the solenoid valve (307) and the electric push rod (306) and the controller (4) is electrical connection.

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