CN219495693U

CN219495693U - Soil moisture sensor calibrating device

Info

Publication number: CN219495693U
Application number: CN202223565592.0U
Authority: CN
Inventors: 朱亚男; 刘秀莲; 王伟达
Original assignee: Shanghai Marine Geological Exploration And Design Co ltd
Current assignee: Shanghai Marine Geological Exploration And Design Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-08
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of sensor calibration, and discloses a soil moisture sensor calibration device which comprises a weight plate, wherein four supporting legs are symmetrically and fixedly arranged at the bottom of the weight plate, a supporting disc is fixedly arranged at the lower side of each supporting leg, and an electric telescopic rod I is fixedly arranged at the center of the bottom of the weight plate. This soil moisture sensor calibrating device sets up and promotes drilling rod, the first electric telescopic handle of drill bit decurrent, can detect the soil in the certain degree of depth, and the drilling rod is convenient for pull down from electric telescopic handle one, and the inside part of pouring the drilling rod is cleared up, convenient operation, and the clean degree of difficulty is low, sets up the rotatory closed structure that each subassembly constitutes, can seal the breach at the in-process that the drilling rod removed, prevents that earth outside the detection degree of depth from getting into in advance and influencing the testing result, also avoids earth more intaking, is convenient for follow-up clear up, prevents that remaining earth from causing the influence on the result to the next test, and clearance area is little, and the task load is little, convenient and fast.

Description

Soil moisture sensor calibrating device

Technical Field

The utility model relates to the technical field of sensor calibration, in particular to a soil moisture sensor calibration device.

Background

Soil is the root of the existence of crops, plants grow by absorbing nutrient substances and moisture necessary for existence from underground soil, and the moisture content in the soil is one of the necessary conditions for determining the growth of the crops, so that the soil moisture sensor is used for detecting the moisture content in the soil, the connection of automatic control irrigation is facilitated, and the crops are helped to reach the growth condition of the optimal moisture content.

In the prior art, the patent document with the application number of CN202111289694.1 describes a needle type soil moisture sensor calibration device, a plurality of groups of electronic telescopic pipes are arranged on a support bracket, the drilling site and the drilling depth of a drill rod are controlled by controlling the telescopic operation of the electronic telescopic pipes and the electronic telescopic rods, the drill bit connected with the lower end of the drill rod is controlled by controlling a conical plate to control the opening and closing of the drill bit, the opening is opened in the process of drilling the drill bit into the ground, soil is extruded to enter the drill bit, the sensor descends to be in contact with the soil under the action of an electric push rod, the sealing detection is realized, namely, the calibration error caused by a certain distance between the soil taking position and the sensor installation position is avoided, the internal moisture is prevented from changing after the soil is shifted, and a plurality of groups of numerical values are detected at the same time, avoid because the time differentiation causes soil inside moisture content different, the sensor is driven by electric putter and vertical movement in the drilling rod, when the drilling rod inner chamber is empty, the sensor is located the inside upper position of drilling rod, after getting into soil in the drilling rod, electric putter extension control sensor inserts soil, avoid soil to be crowded in the drilling rod after with the oppression sensor, make the sensor impaired, the device sample is convenient, detect simply effectively, its is characterized in that, more earth of accumulation in the fretwork drill bit that the device set up is inconvenient to clean, the inside part of device is dismantled comparatively troublesome, wash the difficulty, when leading to the next detection, remaining earth can influence measuring result's accuracy, influence the detection experiment, the result of use is not good.

Disclosure of Invention

(one) solving the technical problems

The present utility model is directed to a calibration device for a soil moisture sensor, which solves the above-mentioned problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a soil moisture sensor calibrating device, includes the counter weight board, the bottom symmetry fixed mounting of counter weight board has four supporting legs, every the downside fixed mounting of supporting leg has the supporting disk, the bottom center fixed mounting of counter weight board has electric telescopic handle one, electric telescopic handle one's lower extreme fixed mounting has the top cap, the downside of top cap is connected with the drilling rod, the bottom fixed mounting of drilling rod has the drill bit, cavity one and cavity two have been seted up to the inside of drilling rod, cavity two sets up at the inside downside right-hand member of drilling rod, the breach has been seted up to the downside right-hand member of drilling rod, just breach and cavity two intercommunication.

Preferably, a thread ring is fixedly arranged at the lower end of the top cover, a thread groove is formed in the upper side of the interior of the drill rod, and the thread ring is in threaded connection with the thread groove.

Preferably, a movable disc I is further arranged in the thread groove and is abutted to the lower side of the thread ring, and the diameter of the movable disc I is larger than that of the cavity I.

Preferably, an electric telescopic rod II is fixedly arranged on the right side of the lower end of the movable disc I, an installation block is fixedly arranged at the movable end of the electric telescopic rod II, a sensor is connected to the lower side of the installation block, and the sensor is movably connected with the installation block.

Preferably, a fixed disc is fixedly arranged in the first cavity, a micro motor is fixedly arranged at the upper end of the fixed disc, a rotating rod is rotatably arranged at the lower end of the fixed disc, and an output shaft of the micro motor penetrates through the fixed disc and is fixedly connected with the upper end of the rotating rod.

Preferably, a rotating disc is fixedly arranged at the lower end of the rotating rod, and a limiting ring is fixedly arranged at the outer side of the rotating disc.

Preferably, a sealing ring is fixedly arranged at the lower side in the first cavity, a clamping groove is formed in the sealing ring, the rotating disc is arranged in the sealing ring in a sliding mode, and the limiting ring is arranged in the clamping groove in a sliding mode.

Preferably, a shielding block is fixedly arranged at the right end of the lower side of the rotary disk, the shielding block is arranged in the cavity II, the outer side surface of the shielding block is in sliding connection with the inner wall of the drill rod, and the shielding block is larger than the area of the notch and covers the notch.

Preferably, the bottom of the drill rod at the second cavity is provided with an arc groove, the bottom of the shielding block is arranged in the arc groove in a sliding mode, and the inner wall of the drill rod at the notch is provided with a smooth inclined surface.

Preferably, the right side of the fixed disk is provided with a first through groove in a penetrating way, the first through groove is arranged under the sensor, the rotating disk is provided with a second through groove in a penetrating way, when the shielding block rotates to be away from the notch to reach the maximum limit, the second through groove is arranged under the first through groove, and the sensor can penetrate through the first through groove and the second through groove to extend into the second cavity.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the soil moisture sensor calibration device, the electric telescopic rod I pushing the drill rod and the drill bit downwards is arranged, so that soil moisture in a certain depth can be conveniently detected, meanwhile, the drill rod is connected with the electric telescopic rod I in a threaded connection mode through the top cover and the threaded ring, so that the drill rod is conveniently detached, parts inside the drill rod are poured out for cleaning, and the operation is convenient, so that part of components inside the drill rod can be conveniently cleaned;

2. this soil moisture sensor calibrating device sets up the rotatory closed structure that components such as fixed disk, micro motor, dwang, rotary disk, sealing ring, spacing ring, shielding dog are constituteed, can seal the breach at the in-process that the drilling rod removed, prevent to survey the earth outside the degree of depth and get into in advance and influence the testing result, except the time that control earth got into, can also control earth and get into in the cavity second and conveniently detect, also avoid earth to get into in the cavity first, cause trouble to subsequent clearance, control the uptake to earth on the whole, make only offer less cavity second in have earth, be convenient for follow-up clear up, prevent remaining earth to cause the influence on the result to the next test, clear up the area is little, the task size is little, convenient and fast.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the drill bit according to the present utility model;

FIG. 4 is a schematic perspective view of a rotary assembly according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

FIG. 6 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

fig. 7 is an enlarged view of the structure of fig. 3 at C according to the present utility model.

In the figure: 1. a weight plate; 2. support legs; 3. a support plate; 4. an electric telescopic rod I; 5. a drill rod; 6. a drill bit; 7. a notch; 8. a first cavity; 9. a cavity II; 10. a thread groove; 11. a top cover; 12. a threaded ring; 13. a movable disk I; 14. an electric telescopic rod II; 15. a mounting block; 16. a sensor; 17. a fixed plate; 18. a micro motor; 19. a rotating lever; 20. penetrating a groove I; 21. a rotating disc; 22. a seal ring; 23. a limiting ring; 24. a clamping groove; 25. a shielding block; 26. penetrating a groove II; 27. an arc-shaped groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a soil moisture sensor calibrating device, including counter weight board 1, four supporting legs 2 are installed to the bottom symmetry of counter weight board 1, the downside of every supporting leg 2 is fixed mounting has supporting disk 3, electric telescopic handle one 4 is installed to the bottom center of counter weight board 1, electric telescopic handle one 4's lower extreme fixed mounting has top cap 11, the downside of top cap 11 is connected with drilling rod 5, drilling rod 5's bottom fixed mounting has drill bit 6, cavity one 8 and cavity two 9 have been seted up in drilling rod 5's inside, cavity two 9 sets up at drilling rod 5's inside downside right-hand member, notch 7 has been seted up to drilling rod 5's downside right-hand member, and notch 7 and cavity two 9 intercommunication;

the lower end of the top cover 11 is fixedly provided with a threaded ring 12, the upper side of the interior of the drill rod 5 is provided with a threaded groove 10, the threaded ring 12 is in threaded connection with the threaded groove 10, the drill rod 5 is fixedly connected to the first electric telescopic rod 4 in a threaded connection mode, the disassembly is convenient, the interior parts are taken out of the drill rod 5, the threaded groove 10 is internally provided with a first movable disk 13, the first movable disk 13 is abutted against the lower side of the threaded ring 12, the diameter of the first movable disk 13 is larger than that of the first cavity 8, the threaded ring 12 is abutted against the first movable disk 13, the movement of the first movable disk 13 is limited, the right side of the lower end of the first movable disk 13 is fixedly provided with a second electric telescopic rod 14, the movable end of the second electric telescopic rod 14 is fixedly provided with a mounting block 15, the lower side of the mounting block 15 is connected with a sensor 16, the sensor 16 is movably connected with the mounting block 15, the second electric telescopic rod 14 can push the sensor 16 to move downwards, and the sensor 16 is conveniently disassembled in a movable connection mode of the mounting block 15 for cleaning;

a fixed disc 17 is fixedly arranged in the first cavity 8, a micro motor 18 is fixedly arranged at the upper end of the fixed disc 17, a rotating rod 19 is rotatably arranged at the lower end of the fixed disc 17, an output shaft of the micro motor 18 penetrates through the fixed disc 17 and is fixedly connected with the upper end of the rotating rod 19, the micro motor 18 is driven to rotate the rotating rod 19, a rotating disc 21 is fixedly arranged at the lower end of the rotating rod 19, a limiting ring 23 is fixedly arranged at the outer side of the rotating disc 21, a sealing ring 22 is fixedly arranged at the lower side of the first cavity 8, a clamping groove 24 is formed in the sealing ring 22, the rotating disc 21 is slidably arranged in the sealing ring 22, the limiting ring 23 is slidably arranged in the clamping groove 24, when the rotating rod 19 rotates, the rotating disc 21 is driven to rotate in the first cavity 8, the sealing ring 22 is beneficial to reducing gaps at the outer side of the rotating disc 21, and meanwhile, the clamping groove 24 and the limiting ring 23 are arranged, so that sealing conditions are further provided, mud in the second cavity 9 cannot enter the first cavity 8, and cleaning of the first cavity 8 is avoided;

the downside right-hand member fixed mounting of rotary disk 21 has and hides dog 25, shelter from the side of piece 25 and the inner wall sliding connection of drilling rod 5, shelter from the area that piece 25 is greater than breach 7 and cover breach 7, shelter from piece 25 rotatable regulation, when shelter from breach 7, it enters into cavity two 9 to block earth, when opening the state, earth enters into cavity two 9, be convenient for collect earth and test, drilling rod 5 is located cavity two 9's bottom and offered arc wall 27, shelter from the bottom sliding setting of dog 25 in arc wall 27, drilling rod 5 is located breach 7 department inner wall setting to smooth inclined plane, smooth inclined plane's setting helps upwards pull out drilling rod 5 when breach 7 accumulation earth at drilling rod 5 leads to the trouble of clearance, wear groove one 20 has been run through on the right side of fixed disk 17, wear groove one 20 sets up under sensor 16, wear groove two 26 have been run through on the rotary disk 21, when shelter from 25 rotation opening breach 7 to arrive the biggest restriction department, wear groove two 26 to be located wear groove one 20 and wear groove one sensor 16 and wear groove two sensor 16, wear groove one sensor 16 and two sensor two are worn groove one sensor 16 and two, wear groove two sensor 16 and two sensor 16 are worn groove one sensor 16 and two are worn groove one to be in the same, two vertical groove of diameter sensor 16 are worn groove one, two sensor is worn groove one is in the top of the sensor 16, two is worn groove is in the top is in the sensor 16, and two is worn groove is in the top is in the sensor is in the top of the sensor, the top is in the sensor, the top is worn groove is in the sensor groove is 16, the top is worn groove is the bottom.

Working principle: firstly, the device is placed in a region where a soil sample needs to be collected, the stability of the device is kept, then an electric telescopic rod I4 is started, a drill rod 5 and a drill bit 6 are pushed to break the soil downwards, the drill rod is drilled into the ground and reaches the depth range where the soil sample needs to be detected, a micro motor 18 is driven to rotate forwards, a rotating rod 19 is driven to rotate forwards, a rotating disc 21 follows the rotation, meanwhile, a shielding block 25 is driven to slide, a shielding block 25 rotates forwards and leaves a shielding gap 7, soil is extruded and enters a cavity II 9 in the process of downwards drilling the drill rod 5, the drill rod 5 is stopped from diving, the micro motor 18 is driven to reversely rotate again, the shielding block 25 rotates anticlockwise and passes through the gap 7 and is converted to the other side of the drill rod 5, at the moment, a through groove II 26 is moved to the position right below a through groove II 20 and a sensor 16 are positioned on the same vertical plane, the electric telescopic rod II 14 is started, the bottom end of the sensor 16 is pushed to pass through the through groove II 20 and the through groove II 26, the shielding block 25 is inserted into the cavity II 9 to contact with the soil, moisture is detected, when the drill rod 5 is required to be pulled out, the electric telescopic rod II returns to the ground, and the electric telescopic rod 16 is extruded and then the cavity II is pushed upwards to the cavity II, and the soil is prevented from being pressed and stressed by the sensor II to reach the position to the inside the cavity 9; during cleaning, the shielding block 25 is only required to be removed, soil in the cavity II 9 with a smaller space is cleaned by a brush, the drill rod 5 is unscrewed from the top cover 11, and the movable disc I13, the electric telescopic rod II 14, the mounting block 15 and the sensor 16 in the drill rod 5 are poured out, so that soil at the end part of the sensor 16 is cleaned conveniently.

Finally, it should be noted that the above description is only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and that the simple modification and equivalent substitution of the technical solution of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a soil moisture sensor calibrating device, includes counter weight board (1), its characterized in that: four supporting legs (2) are symmetrically and fixedly arranged at the bottom of the counterweight plate (1), each supporting leg (2) is fixedly provided with a supporting disc (3), an electric telescopic rod I (4) is fixedly arranged at the center of the bottom of the counterweight plate (1), a top cover (11) is fixedly arranged at the lower end of the electric telescopic rod I (4), a drill rod (5) is connected to the lower side of the top cover (11), a drill bit (6) is fixedly arranged at the bottom of the drill rod (5), a cavity I (8) and a cavity II (9) are formed in the drill rod (5), a notch (7) is formed in the right end of the lower side of the drill rod (5), and the notch (7) is communicated with the cavity II (9).

2. A soil moisture sensor calibration apparatus as claimed in claim 1 wherein: the screw thread ring (12) is fixedly arranged at the lower end of the top cover (11), the screw thread groove (10) is formed in the upper side of the interior of the drill rod (5), and the screw thread ring (12) is in threaded connection with the screw thread groove (10).

3. A soil moisture sensor calibration apparatus as claimed in claim 2 wherein: a movable disc I (13) is further arranged in the thread groove (10), and the movable disc I (13) is abutted to the lower side of the thread ring (12).

4. A soil moisture sensor calibration apparatus as claimed in claim 3 wherein: an electric telescopic rod II (14) is fixedly arranged on the right side of the lower end of the movable disc I (13), an installation block (15) is fixedly arranged at the movable end of the electric telescopic rod II (14), and a sensor (16) is connected to the lower side of the installation block (15).

5. A soil moisture sensor calibration apparatus as claimed in claim 1 wherein: a fixed disc (17) is fixedly arranged in the first cavity (8), a micro motor (18) is fixedly arranged at the upper end of the fixed disc (17), a rotating rod (19) is rotatably arranged at the lower end of the fixed disc (17), and an output shaft of the micro motor (18) penetrates through the fixed disc (17) and is fixedly connected with the upper end of the rotating rod (19).

6. A soil moisture sensor calibration apparatus as claimed in claim 5 wherein: the lower end of the rotating rod (19) is fixedly provided with a rotating disc (21), and the outer side of the rotating disc (21) is fixedly provided with a limiting ring (23).

7. A soil moisture sensor calibration apparatus as claimed in claim 6 wherein: the lower side in the first cavity (8) is fixedly provided with a sealing ring (22), the sealing ring (22) is provided with a clamping groove (24), the rotating disc (21) is arranged in the sealing ring (22) in a sliding mode, and the limiting ring (23) is arranged in the clamping groove (24) in a sliding mode.

8. A soil moisture sensor calibration apparatus as claimed in claim 7 wherein: the right end of the lower side of the rotary disc (21) is fixedly provided with a shielding block (25), the shielding block (25) is arranged in the cavity II (9), and the outer side surface of the shielding block (25) is in sliding connection with the inner wall of the drill rod (5).

9. A soil moisture sensor calibration apparatus as claimed in claim 8 wherein: the bottom that drilling rod (5) are located cavity two (9) has offered arc wall (27), the bottom of shielding piece (25) slides and sets up in arc wall (27), drilling rod (5) are located breach (7) department inner wall and set up to smooth inclined plane.

10. A soil moisture sensor calibration apparatus as claimed in claim 9 wherein: the right side of fixed disk (17) runs through and has seted up and wear groove one (20), wear groove one (20) and set up under sensor (16), wear groove two (26) have been run through on rotary disk (21), when shielding piece (25) rotatory leave breach (7) department and reach maximum restriction department, wear groove two (26) and be located and wear groove one (20) under.