Soil moisture extraction device and soil moisture extraction method

Abstract

This invention provides a soil moisture extraction device and method. The soil moisture extraction device includes: a housing with an operating chamber; a heating unit including a water bath, a distillation flask, and a water collection cap, wherein the water bath is disposed within the housing with its opening facing the operating chamber; the distillation flask and the water collection cap are detachably connected; the distillation flask is used to hold the soil to be extracted and is removably placed in the water bath, which heats the distillation flask to extract moisture from the soil within it into the water collection cap; a transfer unit and a water collection unit, both disposed within the operating chamber; the transfer unit can clamp or release the water collection cap and is located between the water collection unit and the water bath; the transfer unit is rotatably configured to transfer the water collection cap to the water collection unit, which squeezes and collects the extracted soil moisture from the water collection cap. The technical solution provided by this invention solves the problem of low automation in existing soil moisture extraction technologies.

Description

Technical Field

[0001] This invention relates to the field of soil moisture extraction technology, and more specifically, to a soil moisture extraction device and a soil moisture extraction method. Background Technology

[0002] Soil moisture extraction is a necessary task in most related experimental studies. Currently, soil moisture extraction is a rather cumbersome process. In the laboratory, soil samples are usually placed in a distillation flask, heated and distilled, and then the water is absorbed by an absorbent sponge. Finally, the water is squeezed out of the sponge. All of this is done manually, with many steps and a lot of time. Moreover, there is no established professional equipment for this purpose, which is not suitable for large-scale sample studies in the laboratory. Summary of the Invention

[0003] This invention provides a soil moisture extraction device and a soil moisture extraction method to solve the problem of low automation in soil moisture extraction in the prior art.

[0004] To address the aforementioned problems, according to one aspect of the present invention, a soil moisture extraction device is provided, comprising: a housing having an operating chamber; a heating section including a water bath, a distillation flask, and a water collection cap, wherein the water bath is disposed within the housing with its opening facing the operating chamber; the distillation flask and the water collection cap are detachably connected; the distillation flask is used to hold soil to be extracted and is removably placed in the water bath, the water bath being used to heat the distillation flask to extract moisture from the soil within the distillation flask into the water collection cap; a transfer section and a water collection section, both disposed within the operating chamber; the transfer section can clamp or release the water collection cap; the transfer section is located between the water collection section and the water bath; the transfer section is rotatably disposed to transfer the water collection cap to the water collection section; and the water collection section is used to squeeze and collect the extracted soil moisture from the water collection cap.

[0005] Furthermore, the transfer unit includes a robotic arm and an openable robotic gripper. The robotic arm is mounted on the bottom wall of the operating cavity, and the robotic gripper and the end of the robotic arm opposite to the bottom wall of the operating cavity are connected. The robotic arm is vertically adjustable to adjust the clamping height of the robotic gripper. The robotic arm is rotatably mounted to adjust the clamping position of the robotic gripper in the circumferential direction. The outer periphery of the water collection cap has a second annular clamping groove, and the robotic gripper and the second annular clamping groove are separably engaged to clamp or release the water collection cap. The robotic gripper is rotatably mounted to flip the water collection cap.

[0006] Furthermore, the robotic arm includes a rotating base, a first rotating rod, a second rotating rod, and a third rotating rod that are hinged together in sequence. The robotic gripper includes a connecting base and two arc-shaped clamps movably mounted on the connecting base. The two arc-shaped clamps can move closer to or further away from each other to clamp or release the water collection cap. The rotating base is rotatably mounted on the bottom wall of the operating cavity to adjust the circumferential position of the water collection cap clamped by the two arc-shaped clamps. The connecting base is rotatably mounted on the end of the third rotating rod opposite to the second rotating rod to flip the water collection cap clamped by the arc-shaped clamps. The first rotating rod, the second rotating rod, and the third rotating rod can all be rotatably mounted to adjust the lifting height of the water collection cap clamped by the arc-shaped clamps.

[0007] Furthermore, the robotic arm includes a telescopic cylinder and a rotating platform rotatably mounted on the telescopic cylinder. The robotic gripper includes a connecting seat and two arc-shaped clamps movably mounted on the connecting seat. The two arc-shaped clamps can move closer to or further away from each other to clamp or release the water collection cap. The telescopic cylinder is telescopically mounted on the bottom wall of the operating chamber to adjust the lifting height of the water collection cap clamped by the arc-shaped clamps. The connecting seat is rotatably mounted on the rotating platform to flip the water collection cap clamped by the arc-shaped clamps. The rotating platform is rotatably mounted to adjust the circumferential position of the water collection cap clamped by the two arc-shaped clamps.

[0008] Furthermore, the water collection unit includes a water collection support platform and a water collection bottle. The water collection support platform includes a plate, a limiting cylinder, and multiple support columns arranged around the plate. The multiple support columns are arranged on the bottom wall of the operating cavity. The limiting cylinder is arranged on the plate and extends toward the bottom wall of the operating cavity. The plate has a through hole communicating with the cavity of the limiting cylinder. The water collection cap is pluggably inserted through the through hole and inserted into the limiting cylinder through a transfer part. The water collection bottle is located below the limiting cylinder to collect the water in the water collection cap located in the limiting cylinder.

[0009] Furthermore, the water collection section also includes an electric push rod and a squeezing head connected to each other. The electric push rod is located on the top wall of the operating chamber. The electric push rod, squeezing head, and limiting cylinder are coaxial. The electric push rod is telescopically oriented to drive the squeezing head to move closer to or further away from the limiting cylinder. When the water collection cap is inserted through the limiting cylinder, the electric push rod extends and squeezes the cavity of the water collection cap to squeeze the water inside the water collection cap into the water collection bottle.

[0010] Furthermore, the water collection cap includes a cylindrical body and absorbent cotton, with the absorbent cotton placed on the inner wall of one end of the cylindrical body. When the distillation flask is heated in a water bath, the water collection cap and the distillation flask are connected, with one end of the cylindrical body containing the absorbent cotton positioned directly above the other end. Water in the soil inside the distillation flask is extracted and absorbed into the absorbent cotton. When the water bath heating stops, the water collection cap and the distillation flask are separated, and the transfer unit transfers the water collection cap to the water collection unit. One end of the cylindrical body containing the absorbent cotton is flipped to be directly below the other end, and the squeezing head is vertically adjustable to squeeze the absorbent cotton inside the cylindrical body. The limiting cylinder, the water collection cap, and the squeezing head are all identical in shape to facilitate the squeezing head squeezing the absorbent cotton inside the cylindrical body.

[0011] Furthermore, the heating unit also includes a fixing clamp fixedly disposed on the side wall of the operating chamber. The end of the fixing clamp facing away from the side wall of the operating chamber has an openable and closable claw. The outer peripheral surface of the distillation flask has a first annular clamping groove. The claw and the first annular clamping groove can be separably engaged to clamp or release the distillation flask.

[0012] Furthermore, the soil moisture extraction device also includes a control unit, which is located inside the housing. The control unit's operation panel is exposed inside the housing. The control unit is electrically connected to the water bath, transfer unit, and water collection unit to control the linkage of the water bath, transfer unit, and water collection unit.

[0013] According to another aspect of the present invention, a method for extracting soil moisture is provided, which is applied to the above-mentioned soil moisture extraction device. The method includes: S1: placing an appropriate amount of soil into a distillation flask, adding water into a water bath, connecting the water collection cap and the distillation flask together, placing part of the distillation flask in the water bath and heating the water bath; S2: stopping the heating of the water bath, clamping the water collection cap with a transfer unit and separating the water collection cap and the distillation flask, and moving the water collection cap above the water collection unit by lifting, rotating and flipping, and flipping it to pass through the water collection unit; S3: running the water collection unit and squeezing the cavity of the water collection cap passing through the water collection unit, collecting the water squeezed out from the water collection cap into the water collection unit, and after the squeezing is completed, resetting the water collection unit, and removing the water collection cap from the water collection unit by the transfer unit.

[0014] The present invention provides a soil moisture extraction device, comprising: a housing having an operating chamber; a heating section including a water bath, a distillation flask, and a water collection cap, wherein the water bath is disposed within the housing with its opening facing the operating chamber; the distillation flask and the water collection cap are detachably connected; the distillation flask is used to hold the soil to be extracted and is removably placed in the water bath, which heats the distillation flask to extract moisture from the soil within it into the water collection cap; a transfer section and a water collection section, both disposed within the operating chamber; the transfer section can clamp or release the water collection cap and is located between the water collection section and the water bath; the transfer section is rotatably configured to transfer the water collection cap to the water collection section, which squeezes and collects the extracted soil moisture from the water collection cap. This method involves first placing an appropriate amount of soil in a distillation flask, then connecting the flask to a water collection cap and placing the flask in a water bath. Heating in the water bath vaporizes and extracts the soil moisture from the flask. The vaporized moisture rises into the water collection cap, where a transfer unit clamps and automatically transfers it. Finally, the cap is placed on a collection section, where the lifting and lowering of internal structures compresses the cap's cavity, forcing out and collecting the water adhering to it, thus completing the automatic extraction of soil moisture. This design avoids the need for manual operation in existing technologies, improving soil moisture extraction efficiency and automation. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 This diagram shows a schematic representation of the soil moisture extraction device provided in an embodiment of the present invention in its initial state.

[0017] Figure 2 It shows Figure 1 A schematic diagram of the transfer section in a soil moisture extraction device;

[0018] Figure 3 It shows Figure 2 A top view of the transfer section;

[0019] Figure 4 It shows Figure 1 A schematic diagram of the water collection support platform in a soil moisture extraction device;

[0020] Figure 5 It shows Figure 1 A schematic diagram of the water collection cap in a soil moisture extraction device;

[0021] Figure 6 It shows Figure 5 A front view of the water collection cap;

[0022] Figure 7 It shows Figure 6 A bottom view of the water collection cap;

[0023] Figure 8 It shows Figure 1 A cross-sectional view of a water collection cap with absorbent cotton installed in a soil moisture extraction device;

[0024] Figure 9 It shows Figure 1 A schematic diagram of the distillation flask in a soil moisture extraction device;

[0025] Figure 10 It shows Figure 1 A schematic diagram of the soil moisture extraction device in its first state;

[0026] Figure 11 It shows Figure 1 A schematic diagram of the soil moisture extraction device in the second state;

[0027] Figure 12 It shows Figure 1 A schematic diagram of the soil moisture extraction device in the third state;

[0028] Figure 13 It shows Figure 12 A schematic diagram of the squeezing head squeezing the water collection cap in a certain state;

[0029] Figure 14 A schematic diagram of the transfer unit in a soil moisture extraction device according to another embodiment of the present invention is shown;

[0030] Figure 15 It shows Figure 14 A top view of the transfer section.

[0031] The above figures include the following reference numerals:

[0032] 10. Housing; 11. Operating chamber;

[0033] 20. Heating unit; 21. Water bath; 22. Distillation flask; 221. First annular clamping groove; 23. Water collection cap; 231. Absorbent cotton; 232. Buckle; 233. Second annular clamping groove; 234. Frustum cap; 235. Cylindrical cap; 24. Fixing clamp;

[0034] 30. Transfer unit; 31. Robotic arm; 311. Rotating seat; 312. First rotating rod; 313. Second rotating rod; 314. Third rotating rod; 315. Telescopic cylinder; 316. Rotating table; 32. Mechanical gripper; 321. Connecting seat; 322. Arc-shaped clamp;

[0035] 40. Water collection section; 41. Water collection support platform; 411. Plate; 412. Limiting cylinder; 413. Support column; 42. Water collection bottle; 43. Electric push rod; 44. Extrusion head; 441. Frustum head; 442. Cylindrical head.

[0036] 50. Control Department. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] like Figures 1 to 13 As shown, an embodiment of the present invention provides a soil moisture extraction device, comprising: a housing 10 having an operating chamber 11; a heating unit 20 including a water bath 21, a distillation flask 22, and a water collection cap 23. The water bath 21 is disposed inside the housing 10, with its opening facing the operating chamber 11. The distillation flask 22 and the water collection cap 23 are detachably connected. The distillation flask 22 is used to hold the soil to be extracted, and it is removably placed inside the water bath 21. 1. Used to heat the distillation flask 22 to extract soil moisture from the distillation flask 22 into the water collection cap 23; 2. Transfer section 30 and water collection section 40 are both provided in the operating chamber 11. The transfer section 30 can clamp or loosen the water collection cap 23. The transfer section 30 is located between the water collection section 40 and the water bath 21. The transfer section 30 is rotatably arranged to transfer the water collection cap 23 to the water collection section 40. The water collection section 40 is used to squeeze and collect the soil moisture extracted in the water collection cap 23.

[0039] In this embodiment, an appropriate amount of soil is first placed in a distillation flask 22. Then, the distillation flask 22 and the water collection cap 23 are connected, and the distillation flask 22 is placed in a water bath 21. The soil moisture in the distillation flask 22 is vaporized and extracted by heating in the water bath 21. The vaporized water eventually rises into the water collection cap 23. Then, the water collection cap 23 is clamped by the transfer unit 30 and automatically transferred. Finally, the water collection cap 23 is placed on the water collection unit 40. The lifting and lowering of a part of the internal structure of the water collection unit 40 squeezes the cavity of the water collection cap 23, forcing out the water adhering to the inside of the water collection cap 23 and collecting it into the water collection unit 40, thus completing the automatic extraction of soil moisture. This design avoids the need for manual operation of the above steps in the prior art, improves the soil moisture extraction efficiency, and increases the degree of automation of soil moisture extraction.

[0040] Specifically, the transfer unit 30 is positioned between the water collection unit 40 and the water bath 21. This avoids the situation where the transfer unit 30 is located on the side of the water collection unit 40 away from the water bath 21 or on the side of the water bath 21 away from the water collection unit 40. In such cases, the size of the transfer unit 30 would need to be made larger to accommodate the transfer of the water collection cap 23 between the water collection unit 40 and the heating unit 20. With this configuration, the transfer unit 30 can transfer the water collection cap 23 between the water collection unit 40 and the heating unit 20 simply by rotating, thus reducing the overall size of the transfer unit 30 and consequently reducing the overall size of the soil moisture extraction device, thereby improving the integration of the soil moisture extraction device structure.

[0041] like Figure 2 and Figure 3 As shown, the transfer unit 30 includes a robotic arm 31 and an openable robotic claw 32. The robotic arm 31 is disposed on the bottom wall of the operating cavity 11. The robotic claw 32 is connected to one end of the robotic arm 31 away from the bottom wall of the operating cavity 11. The robotic arm 31 is vertically adjustable to adjust the clamping height of the robotic claw 32. The robotic arm 31 is rotatably adjustable to adjust the clamping position of the robotic claw 32 in the circumferential direction. The outer periphery of the water collection cap 23 has a second annular clamping groove 233. The robotic claw 32 and the second annular clamping groove 233 are detachably engaged to clamp or release the water collection cap 23. The robotic claw 32 is rotatably adjustable to flip the water collection cap 23.

[0042] In this embodiment, the transfer unit 30 has six degrees of freedom to ensure the reliable transfer of the mechanical gripper 32 to clamp the water collection cap 23 at any position and to transfer the clamped water collection cap 23 to any position. The reliability of the mechanical gripper 32 clamping the water collection cap 23 is ensured by the engagement of the mechanical gripper 32 with the second annular clamping groove 233. Specifically, the robotic arm 31 has three translational degrees of freedom and two rotational degrees of freedom, and the mechanical gripper 32 has the remaining rotational degree of freedom.

[0043] Specifically, the robotic arm 31 includes a telescopic cylinder 315 and a rotating platform 316 rotatably mounted on the telescopic cylinder 315. The robotic gripper 32 includes a connecting seat 321 and two arc-shaped clamps 322 movably mounted on the connecting seat 321. The two arc-shaped clamps 322 can move closer to or further away from each other to clamp or release the water collection cap 23. The telescopic cylinder 315 is telescopically mounted on the bottom wall of the operating chamber 11 to adjust the lifting height of the water collection cap 23 clamped by the arc-shaped clamps 322. The connecting seat 321 is rotatably mounted on the rotating platform 316 to flip the water collection cap 23 clamped by the arc-shaped clamps 322. The rotating platform 316 is rotatably mounted to adjust the circumferential position of the water collection cap 23 clamped by the two arc-shaped clamps 322.

[0044] In this embodiment, the telescopic cylinder 315 extends and retracts to move the rotating platform 316 and the mechanical claw 32 in the vertical direction. The rotation of the rotating platform 316 on the telescopic cylinder 315 enables the mechanical claw 32 to rotate in the horizontal direction. The rotation of the connecting seat 321 at one end of the rotating platform 316 enables the arc-shaped clamp 322 to flip in the vertical direction. The rotating platform 316 includes a housing and a telescopic rod disposed within the housing. The housing is rotatably mounted on the telescopic cylinder 315. The telescopic rod and the housing rotate together. The connecting seat 321 is disposed at one end of the telescopic rod. The telescopic rod is telescopic to enable the mechanical claw 32 to move in the horizontal direction. This configuration ensures the comprehensiveness and reliability of the transfer position of the transfer unit 30 to the water collection cap 23. Two arc-shaped clamps 322 can be set close to or far from each other. When it is necessary to clamp the water collection cap 23, the robotic arm 31 moves the two arc-shaped clamps 322 that are far apart to the same horizontal plane as the second annular clamping groove 233. Then the two arc-shaped clamps 322 move close to each other and are inserted into the second annular clamping groove 233 from both sides of the water collection cap 23 to clamp the water collection cap 23. Then the water collection cap 23 can be transferred by lifting and rotating the telescopic cylinder 315, the rotating table 316, and the connecting seat 321. Furthermore, this transfer method can also avoid the water collection cap 23 from colliding with other structures or interfering with each other during horizontal rotation, further ensuring the reliability of the transfer.

[0045] like Figure 4 As shown, the water collection unit 40 includes a water collection support platform 41 and a water collection bottle 42. The water collection support platform 41 includes a plate 411, a limiting cylinder 412, and a plurality of support columns 413 arranged around the plate 411. The plurality of support columns 413 are arranged on the bottom wall of the operating cavity 11. The limiting cylinder 412 is arranged on the plate 411 and extends toward the bottom wall of the operating cavity 11. The plate 411 has a through hole communicating with the cavity of the limiting cylinder 412. The water collection cap 23 is inserted and detachably passed through the through hole and inserted into the limiting cylinder 412 through the transfer part 30. The water collection bottle 42 is located below the limiting cylinder 412 to collect the water in the water collection cap 23 located in the limiting cylinder 412.

[0046] In this embodiment, when the water collection cap 23 needs to be transferred, it is first clamped by two arc-shaped clamps 322. Then, the movement of the telescopic cylinder 315 and the rotating platform 316 transfers the water collection cap 23 to the position directly above the through hole of the water collection support platform 41. Afterward, the telescopic cylinder 315 retracts and drives the water collection cap 23 downward. The water collection cap 23 passes through the through hole and is inserted into the limiting cylinder 412. After the water collection cap 23 is inserted, the water collection part 40 begins to collect the water inside the water collection cap 23. During the water collection process, the water in the water collection cap 23 flows out from the bottom hole and into the limiting cylinder 412. The lower opening of the limiting cylinder 412 is located above the water collection bottle 42 to guide the water flow, prevent the water from scattering during the collection process, and ensure the reliability of the collection. The radial dimension of the limiting cylinder 412 is larger than that of the water collecting cap 23 but smaller than the maximum outer diameter after being clamped by the two arc-shaped clamps 322. The through hole of the plate 411, the limiting cylinder 412, and the water collection bottle 42 are coaxially arranged. Furthermore, the water collecting cap 23 is always clamped by the mechanical claw 32 during the transfer and water collection process. This arrangement allows the water collecting cap 23 to be positioned by the water collecting support platform 41, avoiding the situation where the transfer unit 30 cannot guarantee the accuracy of the correspondence between the two when it directly transfers the water collecting cap 23 to the top of the water collection bottle 42, thus ensuring the reliability of the transfer, positioning, and water collection of the water collecting cap 23.

[0047] like Figure 1 As shown, the water collection section 40 also includes an electric push rod 43 and a squeezing head 44 connected to each other. The electric push rod 43 is disposed on the top wall of the operating chamber 11. The electric push rod 43, the squeezing head 44 and the limiting cylinder 412 are coaxial. The electric push rod 43 is telescopically disposed to drive the squeezing head 44 to move towards or away from the limiting cylinder 412. When the water collection cap 23 passes through the limiting cylinder 412, the electric push rod 43 extends and squeezes the cavity of the water collection cap 23 to squeeze the water in the water collection cap 23 into the water collection bottle 42.

[0048] In this embodiment, when the water collection cap 23 passes through the through hole and is installed inside the limiting cylinder 412, the electric push rod 43 begins to extend and drives the squeezing head 44 to move downward. The squeezing head 44 gradually extends into and squeezes the cavity of the water collection cap 23, so as to force the water in the water collection cap 23 out from the lower opening of the water collection cap 23 and then flow into the water collection bottle 42. After the squeezing head 44 is fully extended into the water collection cap 23 and has completed the squeezing, that is, after the lower opening of the water collection cap 23 no longer squeezes out water, the electric push rod 43 retracts and drives the squeezing head 44 to retract. In this way, the electric push rod 43 and the squeezing head 44 realize the automatic squeezing of water in the water collection cap 23, avoiding the need for manual operation in the prior art, and improving the automation level of soil moisture extraction.

[0049] like Figure 1 , Figure 4 , Figures 5 to 8 As shown, the water collection cap 23 includes a cylindrical body and absorbent cotton 231, with the absorbent cotton 231 disposed on the inner wall of one end of the cylindrical body. When the water bath 21 heats the distillation flask 22, the water collection cap 23 and the distillation flask 22 are connected, with one end of the cylindrical body containing the absorbent cotton 231 positioned directly above the other end. Water in the soil inside the distillation flask 22 is extracted and absorbed into the absorbent cotton 231. When the water bath 21 stops heating, the water collection cap 23 and the distillation flask 22 are separated, and the transfer unit 30 transfers the water collection cap 23 to the water collection unit 40. One end of the cylindrical body containing the absorbent cotton 231 is flipped to be directly below the other end, and the squeezing head 44 is vertically detachable to squeeze the absorbent cotton 231 inside the cylindrical body. The limiting cylinder 412, the water collection cap 23, and the squeezing head 44 are all identical in shape to facilitate the squeezing head 44 squeezing the absorbent cotton 231 inside the cylindrical body. This configuration, by making the limiting cylinder 412, the water collecting cap 23, and the squeezing head 44 all the same shape, facilitates the containment and guidance of the water collecting cap 23 by the limiting cylinder 412 and the squeezing effect of the squeezing head 44 on the water collecting cap 23, ensuring the reliability of water collection. Furthermore, the absorbent cotton 231 placed inside the cylinder facilitates the absorption of moisture generated by heating the soil in the distillation flask 22, preventing water collected in the water collecting cap 23 from falling back into the distillation flask 22, thus ensuring the reliability of water extraction from the soil. Specifically, the absorbent cotton 231 is placed on the inner wall of one end of the cylinder. When the distillation flask 22 is heated by the water bath 21, the extracted vaporized water moves upwards, placing the end of the cylinder with the absorbent cotton 231 at the top for easy collection of vaporized water. When collecting water in the water collecting cap 23, the end of the cylinder with the absorbent cotton 231 is placed at the bottom for easy squeezing by the squeezing head 44.

[0050] Optionally, such as Figure 4 As shown, the limiting cylinder 412 is a frustum-shaped cylinder, and the radial dimension of the limiting cylinder 412 gradually decreases in the direction from the plate 411 toward the bottom wall of the operating cavity 11, as shown. Figures 5 to 8 As shown, the water collecting cap 23 includes a frustum cap 234 and a cylindrical cap 235. Absorbent cotton 231 is located on the inner wall of the frustum cap 234 on the side facing away from the cylindrical cap 235 (the side with the smaller opening of the frustum cap 234). The larger opening end of the frustum cap 234 is connected to the cylindrical cap 235. When the water collecting cap 23 is connected to the distillation flask 22, the frustum cap 234 is located above the cylindrical cap 235. When the water collecting cap 23 is inserted into the limiting cylinder 412, the frustum cap 234 is located below the cylindrical cap 235. Figure 1As shown, the extrusion head 44 includes a frustum head 441 and a cylindrical head 442 connected to each other. The larger opening end of the frustum head 441 is connected to the cylindrical head 442. The frustum head 441 and the frustum cap 234 have the same shape to facilitate extrusion of the cavity of the frustum cap 234 located in the limiting cylinder 412. The frustum cap 234 and the limiting cylinder 412 have the same shape to facilitate limiting the installation depth of the frustum cap 234. With this configuration, when the water bath 21 heats the distillation flask 22, the frustum cap 234 is positioned above the cylindrical cap 235. This means that the opening of the distillation flask 22 and the end of the cylindrical cap 235 away from the frustum cap 234 (the end with the larger opening) are connected. This facilitates the collection of the water extracted during heating into the water collection cap 23. The end of the frustum cap 234 with the smaller opening is positioned at the top, preventing a large amount of water extracted during heating from flowing out of the water collection cap 23. At the same time, the absorbent cotton 231 is located on the inner wall of the end of the frustum cap 234 with the smaller opening, and the radial dimension of the frustum cap 234 gradually increases from bottom to top, which facilitates the flow and centralized collection of water. When collecting water with the water collection cap 23, the water collection cap 23 is flipped and inserted into the limiting cylinder 412 by the extension and retraction of the telescopic cylinder 315, the rotation of the rotating platform 316, and the rotation of the connecting seat 321. That is, the cylindrical cap 235 is flipped to the top of the truncated cone cap 234. The smaller opening end of the truncated cone cap 234 is inserted into the limiting cylinder 412 and faces the water collection bottle 42. The radial dimension of the truncated cone cap 234 gradually decreases from top to bottom. The truncated cone head 441 of the squeezing head 44 is located below the cylindrical head 442, and the radial dimension of the truncated cone head 441 gradually decreases from top to bottom. This makes it easy for the truncated cone head 441 to extend into the truncated cone cap 234 and squeeze the absorbent cotton 231 on the inner wall of the opening end of the truncated cone cap 234, ensuring the completeness of the squeezing and the guidance of the squeezed water.

[0051] Optionally, such as Figures 5 to 8As shown, the water collecting cap 23 also includes multiple latches 232. These latches 232 are disposed on the inner wall of the cylindrical cap 235 on the side facing away from the frustum cap 234. The latches 232 are distributed circumferentially along the cylindrical cap 235. Specifically, each latch 232 is an elastic sheet structure, having a first end facing the frustum cap 234 and a second end facing away from the frustum cap 234 along the axial direction of the cylindrical cap 235. When the water collecting cap 23 is separated from the distillation flask 22, the first ends of all latches 232 protrude along the axial direction of the cylindrical cap 235. When water is collected... When the cap 23 and the distillation flask 22 need to be snapped together, the end of the cylindrical cap 235 facing away from the frustum cap 234 first slips onto the opening of the distillation flask 22 from above and continues to move downward. During the movement, the second end of the buckle 232 inside the cylindrical cap 235 will first contact the outer wall of the distillation flask 22. As the water collecting cap 23 is installed deeper, multiple buckles 232 are pressed by the outer wall of the distillation flask 22 (the protrusion angle of the first end of the buckle 232 becomes smaller). The cylindrical cap 235 and the distillation flask 22 are clamped together by the elastic force of multiple buckles 232.

[0052] like Figure 1 As shown, the heating unit 20 also includes a fixing clamp 24 fixedly disposed on the side wall of the operating chamber 11. The end of the fixing clamp 24 facing away from the side wall of the operating chamber 11 has an openable and closable gripper. The outer peripheral surface of the distillation flask 22 has a first annular clamping groove 221. The gripper and the first annular clamping groove 221 can be detachably engaged to clamp or release the distillation flask 22. This arrangement facilitates the positioning and clamping of the distillation flask 22.

[0053] Specifically, the soil moisture extraction device also includes a control unit 50, which is located inside the housing 10. The operation panel of the control unit 50 protrudes from the housing 10. The control unit 50 is electrically connected to the water bath 21, the transfer unit 30, and the water collection unit 40 to control the linkage of the water bath 21, the transfer unit 30, and the water collection unit 40. This configuration, through the control unit, enables the linkage of the water bath 21, the transfer unit 30, and the water collection unit 40, further improving the automation level of the soil moisture extraction device.

[0054] Specifically, such as Figure 1 , Figures 10 to 13 As shown, the soil moisture extraction device of this scheme has four working states: initial state, first state, second state, and third state. Figure 1 The structure shown is the initial state of the soil moisture extraction device. In this state, the water collection cap 23 and the distillation flask 22 are snapped together. The distillation flask 22 is placed in the water bath 21 and supported by the fixing clamp 24. This state can also be called the heating state. In this state, the water bath 21 is heated and begins to extract moisture from the soil located in the distillation flask 22. Figure 10The structural state shown is the first state of the soil moisture extraction device, also known as the first transfer state. In this state, the transfer part 30 rotates to the same horizontal plane as the second annular clamping groove 233 and clamps the water collection cap 23 with the mechanical claw 32. Figure 11 The structural state shown is the second state of the soil moisture extraction device, also known as the second transfer state, in which the transfer unit 30 transfers the water collection cap 23 to the top of the water collection support platform 41. Figure 12 The structural state shown represents the third state of the soil moisture extraction device, also known as the water collection state. In this state, the water collection cap 23 descends during the lifting and lowering movement of the transfer unit 30, passing through the limiting cylinder 412. Simultaneously, the electric push rod 43 extends, inserting the squeezing head 44 into the water collection cap 23 to squeeze the absorbent cotton 231 inside. The squeezed water falls into the water collection bottle 42 below, thus collecting the water. Figure 13 The diagram shows the squeezing head 44 squeezing the absorbent cotton 231 inside the water collection cap 23. This design ensures complete squeezing and proper drainage of the squeezed water.

[0055] like Figure 14 and Figure 15 As shown, another embodiment of the present invention provides a soil moisture extraction device, which differs from the above embodiment in that the robotic arm 31 includes a rotating seat 311, a first rotating rod 312, a second rotating rod 313, and a third rotating rod 314 that are hinged in sequence. The robotic gripper 32 includes a connecting seat 321 and two arc-shaped clamps 322 that are movably disposed on the connecting seat 321. The two arc-shaped clamps 322 can move closer to or further away from each other to clamp or release the water collection cap 23. The rotating seat 311 is rotatably disposed on the bottom wall of the operating cavity 11 to adjust the position of the water collection cap 23 clamped by the two arc-shaped clamps 322 in the circumferential direction. The connecting seat 321 is rotatably disposed at the end of the third rotating rod 314 opposite to the second rotating rod 313 to flip the water collection cap 23 clamped by the arc-shaped clamps 322. The first rotating rod 312, the second rotating rod 313, and the third rotating rod 314 can all be rotatably disposed to adjust the lifting height of the water collection cap 23 clamped by the arc-shaped clamps 322.

[0056] In this embodiment, the mechanical claw 32 is moved in the height and horizontal directions by the first rotating rod 312, the second rotating rod 313 and the third rotating rod 314. The mechanical claw 32 is rotated in the horizontal direction by the rotation of the rotating seat 311. The arc-shaped clamp 322 is flipped in the vertical direction by the rotation of the connecting seat 321 located at one end of the rotating table 316. This arrangement ensures the comprehensiveness and reliability of the transfer position of the transfer unit 30 to the water collection cap 23. Two arc-shaped clamps 322 can be set close to or far from each other. When it is necessary to clamp the water collection cap 23, the robotic arm 31 moves the two arc-shaped clamps 322 that are far apart to the same horizontal plane as the second annular clamping groove 233. Then, the two arc-shaped clamps 322 move close to each other and are inserted into the second annular clamping groove 233 from both sides of the water collection cap 23 to clamp the water collection cap 23. Then, the water collection cap 23 can be transferred by raising and lowering and rotating the first rotating rod 312, the second rotating rod 313, the third rotating rod 314, the rotating seat 311 and the connecting seat 321. Furthermore, this transfer method can also avoid the water collection cap 23 from colliding with other structures or interfering with each other during horizontal rotation, further ensuring the reliability of the transfer.

[0057] Another embodiment of the present invention provides a soil moisture extraction method, which is applied to the soil moisture extraction device described above. The soil moisture extraction method includes: S1: placing an appropriate amount of soil into a distillation flask 22, adding water into a water bath 21, connecting the water collection cap 23 and the distillation flask 22 together, placing part of the distillation flask 22 in the water bath 21 and heating the water bath 21; S2: stopping the heating of the water bath 21, clamping the water collection cap 23 with the transfer part 30 and separating the water collection cap 23 from the distillation flask 22, and moving the water collection cap 23 above the water collection part 40 by lifting, rotating and flipping, and flipping it to pass through the water collection part 40; S3: running the water collection part 40 and squeezing the cavity of the water collection cap 23 passing through the water collection part 40, collecting the water squeezed out from the water collection cap 23 into the water collection part 40, and after the squeezing is completed, resetting the water collection part 40, and removing the water collection cap 23 from the water collection part 40 by the transfer part 30.

[0058] This method avoids the need for manual operation in the above steps as required by existing technologies, thus improving the efficiency and automation of soil moisture extraction. The specific method is as follows:

[0059] S1: Place an appropriate amount of soil into the distillation flask 22, add water to the water bath 21, put the absorbent cotton 231 into the round cap 234 and snap the water collection cap 23 and the distillation flask 22 together, then snap the fixing clamp 24 into the first annular clamping groove 221 of the distillation flask 22, and place the lower half of the distillation flask 22 into the water in the water bath 21. The operator controls the water bath 21 to start heating through the control unit 50 to achieve the heating and extraction of soil moisture in the distillation flask 22.

[0060] S2: The water bath 21 stops heating (manually stopped or preset heating time). The mechanical claw 32 of the transfer unit 30 clamps the second annular clamping groove 233 located on the outer periphery of the cylindrical cap 235 and separates the water collecting cap 23 and the distillation bottle 22. Then, the transfer unit 30 moves the water collecting cap 23 to the top of the through hole of the water collecting support platform 41 by lifting, rotating and flipping, and inserts the flipped water collecting cap 23 into the limiting cylinder 412.

[0061] S3: The electric push rod 43 extends and drives the squeezing head 44 to move downward. The squeezing head 44 extends into the water collection cap 23 and squeezes the absorbent cotton 231 inside the water collection cap 23. The squeezed water enters the water collection bottle 42 below. After the squeezing is completed, the electric push rod 43 drives the squeezing head 44 to return to its original position, completing the collection of water in the water collection cap 23.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0064] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A soil moisture extraction device, characterized in that, The utility model relates to a soil moisture extraction device, including: Box (10), the box (10) has operation cavity (11); Heating part (20), heating part (20) includes water bath (21), retort (22) and water collection cap (23), water bath (21) is arranged in the box (10), the opening of water bath (21) is towards operation cavity (11), retort (22) and water collection cap (23) are detachably connected, retort (22) is used for placing soil to be extracted, retort (22) is placed in water bath (21) and can be taken out, water bath (21) is used for heating retort (22), to extract the moisture of soil in retort (22) to water collection cap (23); Transportation part (30) and water collection part (40), transportation part (30) and water collection part (40) are all arranged in operation cavity (11), transportation part (30) can clamp or loosen water collection cap (23), transportation part (30) is between water collection part (40) and water bath (21), transportation part (30) moves water collection cap (23) to the top of water collection part (40) through lifting, rotating and overturning, and overturns and is provided in water collection part (40), water collection part (40) is used for extruding and collecting the moisture of soil extracted in water collection cap (23); Water collection part (40) includes water collection support table (41) and moisture collection bottle (42), water collection support table (41) includes plate body (411), limiting cylinder (412) and a plurality of support columns (413) arranged around plate body (411), water collection part (40) further includes electric push rod (43) and extrusion head (44) connected with each other, water collection cap (23) includes cylinder body and water-absorbing cotton (231); Limiting cylinder (412) is circular truncated cone cylinder, the radial dimension of limiting cylinder (412) gradually reduces in the direction that plate body (411) is towards the bottom wall of operation cavity (11), water collection cap (23) includes circular truncated cone cap (234) and cylindrical cap (235), water-absorbing cotton (231) is located on the inner wall of the side of circular truncated cone cap (234) away from cylindrical cap (235), the one end of circular truncated cone cap (234) with larger opening is connected with cylindrical cap (235), in the condition that water collection cap (23) is connected with retort (22), circular truncated cone cap (234) is located above cylindrical cap (235), in the condition that water collection cap (23) is provided in limiting cylinder (412), circular truncated cone cap (234) is located below cylindrical cap (235), extrusion head (44) includes circular truncated cone head (441) and cylindrical head (442) connected with each other, the one end of circular truncated cone head (441) with larger opening is connected with cylindrical head (442), circular truncated cone head (441) and circular truncated cone cap (234) are same in shape, circular truncated cone cap (234) and limiting cylinder (412) are same in shape. The water collecting cap (23) further comprises a plurality of buckles (232) arranged on the inner wall of the cylindrical cap (235) away from the circular table cap (234), and the plurality of buckles (232) are distributed along the circumference of the cylindrical cap (235). Specifically, the buckle (232) is a flexible sheet structure, and the buckle (232) has a first end facing the circular table cap (234) and a second end away from the circular table cap (234) in the axial direction of the cylindrical cap (235).

2. The soil moisture extraction apparatus of claim 1, wherein, The transfer unit (30) comprises a mechanical arm (31) and a claspable mechanical claw (32). The mechanical arm (31) is arranged on the bottom wall of the operation cavity (11), and the mechanical claw (32) is connected to the end of the mechanical arm (31) away from the bottom wall of the operation cavity (11). The mechanical arm (31) is arranged to be liftable to adjust the clamping height of the mechanical claw (32). The mechanical arm (31) is arranged to be rotatable to adjust the clamping position of the mechanical claw (32) in the circumferential direction. The outer periphery of the water collecting cap (23) has a second annular clamping groove (233), and the mechanical claw (32) and the second annular clamping groove (233) are detachably connected to clamp or release the water collecting cap (23). The mechanical claw (32) is arranged to be rotatable to overturn the water collecting cap (23).

3. The soil moisture extraction apparatus of claim 2, wherein, The mechanical arm (31) comprises a rotating seat (311), a first rotating rod (312), a second rotating rod (313), and a third rotating rod (314) connected in sequence. The mechanical claw (32) comprises a connecting seat (321) and two arc-shaped clamps (322) movably arranged on the connecting seat (321). The two arc-shaped clamps (322) can move towards or away from each other to clamp or release the water collecting cap (23). The rotating seat (311) is arranged to be rotatable on the bottom wall of the operation cavity (11) to adjust the position of the water collecting cap (23) clamped by the two arc-shaped clamps (322) in the circumferential direction. The connecting seat (321) is arranged to be rotatable on the end of the third rotating rod (314) away from the second rotating rod (313) to overturn the water collecting cap (23) clamped by the arc-shaped clamps (322). The first rotating rod (312), the second rotating rod (313), and the third rotating rod (314) are all arranged to be rotatable to adjust the lifting height of the water collecting cap (23) clamped by the arc-shaped clamps (322).

4. The soil moisture extraction apparatus of claim 2, wherein, The mechanical arm (31) comprises a telescopic cylinder (315) and a rotating table (316) rotatably arranged on the telescopic cylinder (315), and the mechanical gripper (32) comprises a connecting seat (321) and two arc-shaped clamps (322) movably arranged on the connecting seat (321), the two arc-shaped clamps (322) can move towards or away from each other to clamp or loosen the water collecting cap (23), the telescopic cylinder (315) is telescopically arranged on the bottom wall of the operation cavity (11) to adjust the lifting height of the water collecting cap (23) clamped by the arc-shaped clamps (322), the connecting seat (321) is rotatably arranged on the rotating table (316) to overturn the water collecting cap (23) clamped by the arc-shaped clamps (322), and the rotating table (316) is rotatably arranged to adjust the circumferential position of the water collecting cap (23) clamped by the two arc-shaped clamps (322).

5. The soil moisture extraction apparatus of claim 1, wherein, A plurality of support columns (413) are arranged on the bottom wall of the operation cavity (11), the limiting cylinder (412) is arranged on the plate body (411) and extends towards the bottom wall of the operation cavity (11), the plate body (411) has a through hole in communication with the cavity of the limiting cylinder (412), the water collecting cap (23) can be plugged through the through hole and arranged in the limiting cylinder (412) through the transfer part (30), and the water collecting bottle (42) is located below the limiting cylinder (412) to collect water in the water collecting cap (23) arranged in the limiting cylinder (412).

6. The soil moisture extraction apparatus of claim 5, wherein, The electric push rod (43) is arranged on the top wall of the operation cavity (11), the electric push rod (43), the extrusion head (44) and the limiting cylinder (412) are coaxial, the electric push rod (43) is telescopically arranged to drive the extrusion head (44) to move towards or away from the limiting cylinder (412), and in the case that the water collecting cap (23) is arranged in the limiting cylinder (412), the electric push rod (43) is elongated and extrudes the cavity of the water collecting cap (23) to extrude water in the water collecting cap (23) to the water collecting bottle (42).

7. The soil moisture extraction apparatus of claim 6, wherein, The water absorption cotton (231) is arranged on the inner wall of one end of the cylinder; in the case that the water bath kettle (21) heats the distillation flask (22), the water collecting cap (23) and the distillation flask (22) are connected, one end of the cylinder provided with the water absorption cotton (231) is located directly above the other end, the moisture in the soil in the distillation flask (22) is extracted and absorbed into the water absorption cotton (231); in the case that the heating of the water bath kettle (21) is stopped, the water collecting cap (23) and the distillation flask (22) are separated, the transfer part (30) transfers the water collecting cap (23) to the water collecting part (40), one end of the cylinder provided with the water absorption cotton (231) is turned to be directly below the other end, the extrusion head (44) is arranged to be liftable and liftable to extrude the water absorption cotton (231) in the cylinder, wherein the shapes of the limiting cylinder (412), the water collecting cap (23) and the extrusion head (44) are the same, so that the extrusion head (44) extrudes the water absorption cotton (231) in the cylinder.

8. The soil moisture extraction apparatus of claim 1, wherein, The heating part (20) further comprises a fixed clamp (24) fixedly arranged on the side wall of the operation cavity (11), one end of the fixed clamp (24) away from the side wall of the operation cavity (11) has a clamping jaw which can be opened and closed, the outer peripheral surface of the distillation flask (22) has a first annular clamping groove (221), and the clamping jaw and the first annular clamping groove (221) are detachably connected to clamp or release the distillation flask (22).

9. The soil moisture extraction apparatus of claim 1, wherein, The soil moisture extraction device further comprises a control part (50), the control part (50) is arranged in the box (10), the operation panel of the control part (50) is exposed outside the box (10), and the control part (50) is electrically connected with the water bath kettle (21), the transfer part (30) and the water collecting part (40) to control the linkage of the water bath kettle (21), the transfer part (30) and the water collecting part (40).

10. A method of soil water extraction, characterized by, The soil moisture extraction method is applied to the soil moisture extraction device in any one of claims 1 to 9, and the soil moisture extraction method comprises: S1: placing appropriate amount of soil in the distillation flask (22), adding water in the water bath kettle (21), connecting the water collecting cap (23) and the distillation flask (22) through clamping, and heating the water bath kettle (21) with the distillation flask (22) partially placed in the water bath kettle (21); S2: the water bath kettle (21) stops heating, the transfer part (30) clamps the water collecting cap (23) and separates the water collecting cap (23) and the distillation flask (22), the transfer part (30) moves the water collecting cap (23) to above the water collecting part (40) through lifting, rotating and turning, and turns the water collecting cap (23) to be arranged in the water collecting part (40); S3: the water collecting part (40) operates and presses the cavity of the water collecting cap (23) arranged on the water collecting part (40), the water pressed out of the water collecting cap (23) is collected in the water collecting part (40), after the pressing is completed, the water collecting part (40) is reset, and the transfer part (30) moves the water collecting cap (23) out of the water collecting part (40).

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