Wheat cultivation and irrigation water detecting and sampling device

Abstract

The invention relates to the technical field of water sampling, and discloses a wheat cultivation irrigation water detecting and sampling device which comprises a sampling barrel and further comprises a hollow disc, the hollow disc is fixedly installed at the bottom of the sampling barrel, a first impeller capable of rotating is arranged below the hollow disc, and a second impeller is rotatably installed at the bottom of the first impeller; the first impeller and the second impeller are oppositely arranged; and the force storage assisting assembly is arranged in the hollow disc, and the force storage assisting assembly is further connected with the first impeller and the second impeller. The device can generate pulling force on the sampling barrel when entering water, so that the sampling barrel quickly sinks to a sampling position with a specified depth, feedback prompt is given when the sampling barrel reaches the sampling position, the sampling precision is ensured, in addition, after sampling is completed, a second impeller generates pushing force on the sampling barrel, a worker can be assisted in lifting the sampling barrel upwards, the working intensity of the worker is relieved, and the working efficiency is improved. The sampling depth can be prompted, and the lifting speed is high, so that the use effect of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water sampling, in particular to a wheat cultivation irrigation water detection and sampling device. Background Art

[0002] Irrigation in wheat cultivation is crucial for ensuring wheat growth and a good harvest. Irrigation effectively replenishes soil moisture, especially in areas experiencing drought or rainfall shortages. Proper irrigation can improve wheat yield and quality. Testing and sampling irrigation water for wheat cultivation is crucial for ensuring that its quality meets agricultural production requirements. Water quality directly impacts crop growth and yield, especially for key grains like wheat. Therefore, regular irrigation water quality testing can proactively identify potential water quality issues and prevent adverse impacts on wheat production.

[0003] Although the current wheat cultivation irrigation water detection and sampling device can sample water, it not only does not have the function of assisting the sampling bucket in entering and exiting the water surface, but also does not have the function of prompting feedback when reaching the specified depth, which reduces the effectiveness of use. Therefore, it is urgent to design a wheat cultivation irrigation water detection and sampling device. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a wheat cultivation irrigation water detection and sampling device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A wheat cultivation irrigation water detection and sampling device comprises a sampling barrel and further comprises: A hollow disk is fixedly mounted on the bottom of the sampling barrel. A rotatable first impeller is provided below the hollow disk, and a second impeller is rotatably mounted on the bottom of the first impeller. The first impeller and the second impeller are arranged oppositely to each other, and are used to assist the sampling barrel in moving up or down in the water. The force storage assist component is arranged inside the hollow disk. The force storage assist component is also connected to the first impeller and the second impeller. The force storage assist component is used to assist the sampling bucket to move down and up in the water to improve the sampling efficiency of the sampling bucket.

[0006] As a further technical solution of the present invention, the power storage assist component includes: a sleeve, the sleeve is rotatably installed inside the hollow disk, the end of the sleeve passes through the bottom surface of the hollow disk and the first impeller, the surface of the sleeve is rotatably installed on the inner wall of the bottom of the hollow disk, the surface of the sleeve is fixedly installed on the inner wall of the first impeller, and the sleeve is used to drive the first impeller to rotate.

[0007] As a further technical solution of the present invention, a rotating rod is rotatably provided inside the sleeve, the top end of the rotating rod is rotatably installed on the top of the hollow disk, and the end of the rotating rod is fixedly installed at the center of the top end of the second impeller. The rotating rod is used to drive the second impeller to rotate.

[0008] As a further technical solution of the present invention, a first bevel gear is fixedly sleeved on the surface of the sleeve, a second bevel gear is fixedly sleeved on the surface of the rotating rod, the first bevel gear and the second bevel gear are symmetrically arranged, and two horizontally arranged rotating shafts are rotatably installed inside the hollow disk. A one-way bearing is fixedly sleeved on the top of each rotating shaft, and a third bevel gear is fixedly sleeved on the outer ring of each one-way bearing. The two third bevel gears are respectively engaged with the first bevel gear and the second bevel gear. The third bevel gear is used to drive the sleeve and the rotating rod to rotate through the first bevel gear and the second bevel gear.

[0009] As a further technical solution of the present invention, mounting blocks are fixedly installed on the top and bottom of the hollow disk, and the two rotating shaft surfaces are respectively installed inside the two mounting blocks. Each rotating shaft surface is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly installed on the side of the mounting block and the rotating shaft surface. The torsion spring is used to store force when the rotating shaft rotates in one direction.

[0010] As a further technical solution of the present invention, the surfaces of the two rotating shafts are fixedly sleeved with sleeves, and each sleeve surface is provided with a plurality of circular grooves evenly distributed in an annular shape. Two knobs are rotatably installed on the outer side of the hollow disk. The centers of the end faces of the two knobs are fixedly installed at the centers of the end faces of the two rotating shafts through connecting shafts, and the two rotating shafts are driven to rotate by rotating the knobs.

[0011] As a further technical solution of the present invention, a first float is provided inside the sampling barrel, and a connecting rod is vertically fixed on the bottom of the first float. The end of the connecting rod passes through the connecting surface of the sampling barrel and the hollow disk, and the end of the connecting rod is inserted into the corresponding circular groove. A first slope is provided at the end of the connecting rod. The setting of the first slope is used to ensure that after the connecting rod is inserted into the corresponding circular groove, it will only hinder the corresponding sleeve disk from rotating in one direction, and will not affect the rotation of the corresponding sleeve disk in the other direction. It is used to limit the sleeve disk and the rotating shaft, and the surface of the connecting rod is slidably connected to the connecting surface of the sampling barrel and the hollow disk through a spline.

[0012] As a further technical solution of the present invention, a second float is arranged between the bottom of the hollow disk and the first impeller, and a folding rod is arranged inside the hollow disk. The lower vertical side of the folding rod passes through the bottom of the hollow disk and is fixedly installed on the top of the second float. The lower vertical side surface of the folding rod and the inner wall of the bottom of the hollow disk are connected by a spline sliding connection. The upper vertical side end of the folding rod is inserted into the corresponding circular groove. A second slope is provided at the upper vertical side end of the folding rod. The second slope is set to ensure that after the folding rod is inserted into the corresponding circular groove, it will only hinder the corresponding sleeve from rotating in one direction, and will not affect the rotation of the corresponding sleeve in another direction.

[0013] As a further technical solution of the present invention, a cylinder is horizontally arranged inside the hollow disk, the top of the cylinder passes through the hollow disk and is connected to the outside world, a sliding disk is slidingly arranged inside the cylinder, a spring rod installed on the inner end of the cylinder is fixed on the inside of the sliding disk, a second inclined block is fixedly installed on the vertical side corresponding to the folding rod, a first inclined block is arranged inside the hollow disk, an L-shaped rod is fixedly installed on the top of the first inclined block, the horizontal side of the L-shaped rod passes through the end face of the cylinder and is fixedly installed on the side of the sliding disk, and when the first inclined block moves, it is used to drive the second inclined block and the folding rod to move downward, so as to realize the reinsertion of the end of the folding rod into the corresponding circular groove.

[0014] As a further technical solution of the present invention, a lifting rod is vertically fixed on the top of the sampling barrel, and a connecting pipe is horizontally installed on the side of the sampling barrel, and a solenoid valve is installed on the surface of the connecting pipe.

[0015] The beneficial effects of the present invention are: The present invention, through the arrangement of the hollow disk and the force storage assisting component, can generate a pulling force on the sampling bucket when entering the water, so that the sampling bucket can quickly sink to the sampling position of the specified depth, and there will be a feedback prompt when it reaches the depth, thereby ensuring the accuracy of the sampling. In addition, after the sampling is completed, the thrust generated by the second impeller on the sampling bucket can assist the staff in pulling the sampling bucket up, reducing the staff's work intensity. It not only has a sampling depth prompt, but also a fast pulling speed, thereby improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a wheat cultivation irrigation water detection and sampling device proposed by the present invention; Figure 2 This is a schematic cross-sectional view of a sampling barrel of a wheat cultivation irrigation water detection and sampling device proposed by the present invention; Figure 3 This is a schematic structural diagram of a wheat cultivation irrigation water detection and sampling device proposed by the present invention with the sampling barrel removed; Figure 4 This is a schematic structural diagram of a device for detecting and sampling water for wheat cultivation irrigation proposed by the present invention, after the first impeller and the second impeller are separated; Figure 5 This is a schematic structural diagram of a wheat cultivation irrigation water detection and sampling device proposed by the present invention after the hollow disk is removed; Figure 6 This is a schematic diagram of the rotating shaft and its connection structure of a wheat cultivation irrigation water detection and sampling device proposed by the present invention; Figure 7 for Figure 6 Enlarged schematic diagram of part A.

[0017] In the figure: 1. Sampling barrel; 2. Connecting pipe; 3. Hollow disk; 4. Knob; 5. First impeller; 6. Second impeller; 7. First float; 8. Connecting rod; 9. Rotating rod; 10. Sleeve; 11. Rotating shaft; 12. Torsion spring; 13. Mounting block; 14. First bevel gear; 15. Second bevel gear; 16. One-way bearing; 17. Third bevel gear; 18. Sleeve disk; 19. Folding rod; 20. Cylinder; 21. Second float; 22. Circular groove; 23. First oblique block; 24. Second oblique block; 26. Sliding disk; 27. Spring rod; 28. L-shaped rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 efforts are within the scope of protection of the present invention.

[0020] Please see the attached Figure 1 -Attached Figure 7 A wheat cultivation irrigation water detection and sampling device includes a sampling barrel 1, a hollow disc 3 and a force-storage assisting component. The hollow disc 3 is fixedly mounted on the bottom of the sampling barrel 1. A rotatable first impeller 5 is provided below the hollow disc 3, and a second impeller 6 is rotatably mounted on the bottom of the first impeller 5. The first impeller 5 and the second impeller 6 are oppositely arranged and are used to assist the sampling barrel 1 to move up or down in the water. The force-storage assisting component is arranged inside the hollow disc 3 and is also connected to the first impeller 5 and the second impeller 6. The force-storage assisting component is used to assist the sampling barrel 1 to move down and up in the water, so as to improve the sampling efficiency of the sampling barrel 1. It can generate pulling force on the sampling bucket 1 when entering water, so that the sampling bucket 1 can quickly sink to the sampling position of the specified depth. There will be feedback prompt when it reaches the depth, which ensures the accuracy of sampling. In addition, after the sampling is completed, the thrust generated by the second impeller 6 on the sampling bucket 1 can assist the staff to pull the sampling bucket 1 up, reducing the work intensity of the staff. It not only has a sampling depth prompt, but also a fast pulling speed.

[0021] Please see the attached Figure 1 -Attached Figure 4In a preferred embodiment, the power storage assist component includes: a sleeve 10, the sleeve 10 is rotatably installed inside the hollow disk 3, the end of the sleeve 10 passes through the bottom surface of the hollow disk 3 and the first impeller 5, the surface of the sleeve 10 is rotatably installed on the inner wall of the bottom of the hollow disk 3, and the surface of the sleeve 10 is fixedly installed on the inner wall of the first impeller 5. The sleeve 10 is used to drive the first impeller 5 to rotate.

[0022] Please see the attached Figure 2 -Attached Figure 7 In a preferred embodiment, a rotating rod 9 is rotatably provided inside the sleeve 10, the top end of the rotating rod 9 is rotatably mounted on the top of the hollow disk 3, and the end of the rotating rod 9 is fixedly mounted at the top center of the second impeller 6, and the rotating rod 9 is used to drive the second impeller 6 to rotate.

[0023] Please see the attached Figure 2 -Attached Figure 6 In a preferred embodiment, a first bevel gear 14 is fixedly sleeved on the surface of the sleeve 10, and a second bevel gear 15 is fixedly sleeved on the surface of the rotating rod 9. The first bevel gear 14 and the second bevel gear 15 are symmetrically arranged, and two horizontally arranged rotating shafts 11 are rotatably installed inside the hollow disk 3. A one-way bearing 16 is fixedly sleeved on the top of each rotating shaft 11, and a third bevel gear 17 is fixedly sleeved on the outer ring of each one-way bearing 16. The two third bevel gears 17 are respectively engaged with the first bevel gear 14 and the second bevel gear 15. The third bevel gear 17 is used to drive the sleeve 10 and the rotating rod 9 to rotate through the first bevel gear 14 and the second bevel gear 15.

[0024] Please see the attached Figure 1 -Attached Figure 7 In a preferred embodiment, mounting blocks 13 are fixedly mounted on the top and bottom of the hollow disk 3, and the surfaces of the two rotating shafts 11 are respectively mounted inside the two mounting blocks 13. A torsion spring 12 is sleeved on the surface of each rotating shaft 11, and the two ends of the torsion spring 12 are respectively fixedly mounted on the side of the mounting block 13 and the surface of the rotating shaft 11. The torsion spring 12 is used to store force when the rotating shaft 11 rotates in one direction.

[0025] Please see the attached Figure 2 -Attached Figure 7 In a preferred embodiment, the surfaces of the two rotating shafts 11 are fixedly sleeved with sleeves 18, and the surface of each sleeve 18 is provided with a plurality of circular grooves 22 evenly distributed in an annular shape. Two knobs 4 are rotatably installed on the outer side of the hollow disk 3. The centers of the end faces of the two knobs 4 are fixedly installed at the centers of the end faces of the two rotating shafts 11 through connecting shafts, and the two rotating shafts 11 are driven to rotate by rotating the knobs 4.

[0026] Please see the attached Figure 3 -Attached Figure 7In a preferred embodiment, a first float 7 is provided inside the sampling barrel 1, and a connecting rod 8 is vertically fixedly installed at the bottom of the first float 7. The end of the connecting rod 8 passes through the connecting surface of the sampling barrel 1 and the hollow disk 3, and the end of the connecting rod 8 is inserted into the corresponding circular groove 22. A first slope is provided at the end of the connecting rod 8. The setting of the first slope is used to make the connecting rod 8 only hinder the corresponding sleeve 18 from rotating in one direction after being inserted into the corresponding circular groove 22, while the corresponding sleeve 18 will not be affected from rotating in the other direction. It is used to limit the sleeve 18 and the rotating shaft 11. The surface of the connecting rod 8 is slidably connected to the connecting surface of the sampling barrel 1 and the hollow disk 3 through a spline.

[0027] Please see the attached Figure 1 -Attached Figure 7 In a preferred embodiment, a second float 21 is provided between the bottom of the hollow disk 3 and the first impeller 5, and a folding rod 19 is provided inside the hollow disk 3. The lower vertical side of the folding rod 19 passes through the bottom of the hollow disk 3 and is fixedly installed on the top of the second float 21. The lower vertical side surface of the folding rod 19 and the inner wall of the bottom of the hollow disk 3 are slidably connected by a spline. The upper vertical side end of the folding rod 19 is inserted into the corresponding circular groove 22. A second slope is provided at the upper vertical side end of the folding rod 19. The second slope is set to ensure that after the folding rod 19 is inserted into the corresponding circular groove 22, it will only hinder the corresponding sleeve 18 from rotating in one direction, while the corresponding sleeve 18 will not be affected from rotating in the other direction.

[0028] Please see the attached Figure 2 -Attached Figure 7 In a preferred embodiment, a cylinder 20 is horizontally arranged inside the hollow disk 3, and the top of the cylinder 20 passes through the hollow disk 3 and is connected to the outside world. A sliding disk 26 is slidingly arranged inside the cylinder 20, and a spring rod 27 installed on the inner end of the cylinder 20 is fixed on the inner side of the sliding disk 26. A second inclined block 24 is fixedly installed on the vertical side corresponding to the folding rod 19. A first inclined block 23 is arranged inside the hollow disk 3, and an L-shaped rod 28 is fixedly installed on the top of the first inclined block 23. The L-shaped rod 28 passes through the end face of the cylinder 20 horizontally and is fixedly installed on the side of the sliding disk 26. When the first inclined block 23 moves, it is used to drive the second inclined block 24 and the folding rod 19 to move downward, so that the end of the folding rod 19 can be reinserted into the corresponding circular groove 22.

[0029] Please see the attached Figure 2 -Attached Figure 7 In a preferred embodiment, a lifting rod is vertically fixed on the top of the sampling barrel 1, and a connecting pipe 2 is horizontally installed on the side of the sampling barrel 1, and a solenoid valve is installed on the surface of the connecting pipe 2.

[0030] Twisting the two knobs 4 drives the two rotating shafts 11 to rotate, and the two rotating shafts 11 drive the two one-way bearings 16 and the sleeve 18 to rotate and cause the torsion spring 12 to generate torque. At this time, the rotation of the one-way bearings 16 will not drive the two third bevel gears 17 to rotate. Due to the setting of the first slope and the second slope on the connecting rod 8 and the folding rod 19, the two sleeves 18 can rotate smoothly. However, when the ends of the connecting rod 8 and the folding rod 19 are inserted into the corresponding circular grooves 22, the sleeve 18 cannot be rotated in the opposite direction to reset, so as to achieve one-way locking of the rotating shaft 11, further accumulating force in the torsion spring 12. The sampling barrel 1 is placed in the water by the lifting rod. When the second float 21 contacts the water surface, the second float 21 will float up due to the buoyancy, and the sampling barrel 1, the hollow disk 3, the first impeller 5 and the second impeller 6 will continue to move downward, which will drive the second float 21 and the hollow disk 3 to produce relative displacement. The movement of the second float 21 will drive the folding rod 19 to move, and the end of the folding rod 19 will no longer be located in the corresponding circular groove 22. At this time, the torsion force generated by the corresponding torsion spring 12 will drive the rotating shaft 11 to rotate in the opposite direction, and the rotating shaft 11 The reverse rotation will drive the corresponding third bevel gear 17 to rotate through the one-way bearing 16, and the corresponding rotation of the third bevel gear 17 will drive the first bevel gear 14 to rotate, and the rotation of the first bevel gear 14 will drive the sleeve 10 to rotate, and the rotation of the sleeve 10 will drive the first impeller 5 to rotate. The rotation of the first impeller 5 and the water will generate a relative force, which will generate a pulling force on the hollow disk 3 and the sampling bucket 1, which not only makes it easier for the hollow disk 3 and the sampling bucket 1 to enter the water, but also accelerates the descending rate of the hollow disk 3 and the sampling bucket 1, further improving the efficiency of water sampling; When the cylinder 20 follows the hollow disk 3 into the water, the pressure in the water will squeeze the sliding plate 26 to move. The movement of the sliding plate 26 drives the L-shaped rod 28 to move, and at the same time, the spring rod 27 generates an elastic force. The L-shaped rod 28 moves and drives the first inclined block 23 to move in the direction of the second inclined block 24 until it reaches the specified sampling depth range. The water pressure squeezes the sliding plate 26 to a preset value. At this time, the first inclined block 23 will contact the second inclined block 24 and drive the second inclined block 24 to move downward. The second inclined block 24 moves downward and drives the folding rod 19 to move downward. The downward movement of the folding rod 19 drives its end to be inserted into the corresponding circular groove 22 to limit the sleeve disc 18 again. At this time, the corresponding rotating shaft 11 will no longer drive the first impeller 5 to rotate, and the further lifting rod will no longer be subjected to the pulling force. After the staff feels the prompt, they open the solenoid valve to take samples through the connecting pipe 2; As the sampling progresses, the liquid level in the sampling barrel 1 will become higher and higher, and the first float 7 will move upward due to the buoyancy of the water surface. The downward movement of the first float 7 drives the connecting rod 8 to move upward. The end of the connecting rod 8 will no longer be inserted into the corresponding circular groove 22, and further, it will no longer limit the corresponding rotating shaft 11. The rotating shaft 11 rotates in the opposite direction due to the torsion force of the torsion spring 12. The reverse rotation of the rotating shaft 11 will drive the corresponding third bevel gear 17 to rotate through the one-way bearing 16. The rotation of the third bevel gear 17 drives the second bevel gear 15 to rotate. The rotation of the second bevel gear 15 drives the rotating rod 9 to rotate. The rotation of the rotating rod 9 drives the second impeller 6 to rotate. The rotation of the second impeller 6 will exert an upward thrust on the hollow disk 3, the sampling barrel 1 and the push-pull rod. After receiving this prompt, the staff indicates that the sampling is completed and closes the solenoid valve. The thrust generated by the second impeller 6 on the sampling barrel 1 can help the staff to pull the sampling barrel 1 upward, reducing the staff's workload. Not only does it have a sampling depth prompt, but the pulling speed is also fast, thereby improving the use effect of the equipment.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A wheat cultivation irrigation water detection and sampling device, comprising a sampling barrel (1), characterized in that: Also includes: A hollow disk (3), wherein the hollow disk (3) is fixedly mounted on the bottom of the sampling barrel (1), a rotatable first impeller (5) is provided below the hollow disk (3), and a second impeller (6) is rotatably mounted on the bottom of the first impeller (5), wherein the first impeller (5) and the second impeller (6) are arranged opposite to each other; A force storage assisting component is provided inside the hollow disk (3), and the force storage assisting component is also connected to the first impeller (5) and the second impeller (6). The force storage assisting component is used to assist the sampling barrel (1) in moving downward and upward in water.

2. A wheat cultivation irrigation water detection and sampling device according to claim 1, characterized in that: The power storage assist component comprises: a sleeve (10), the sleeve (10) is rotatably mounted inside the hollow disk (3), the end of the sleeve (10) passes through the bottom surface of the hollow disk (3) and the first impeller (5), the surface of the sleeve (10) is rotatably mounted inside the inner wall of the bottom of the hollow disk (3), and the surface of the sleeve (10) is fixedly mounted inside the inner wall of the first impeller (5).

3. A wheat cultivation irrigation water detection and sampling device according to claim 2, characterized in that: A rotating rod (9) is rotatably provided inside the sleeve (10), the top end of the rotating rod (9) is rotatably mounted on the top of the hollow disk (3), and the bottom end of the rotating rod (9) is fixedly mounted at the center of the top end of the second impeller (6).

4. A wheat cultivation irrigation water detection and sampling device according to claim 3, characterized in that: A first bevel gear (14) is fixedly sleeved on the surface of the sleeve (10), a second bevel gear (15) is fixedly sleeved on the surface of the rotating rod (9), the first bevel gear (14) and the second bevel gear (15) are symmetrically arranged, and two horizontally arranged rotating shafts (11) are rotatably installed inside the hollow disk (3), the top of each rotating shaft (11) is fixedly sleeved with a one-way bearing (16), and the outer ring of each one-way bearing (16) is fixedly sleeved with a third bevel gear (17), and the two third bevel gears (17) are respectively engaged with the first bevel gear (14) and the second bevel gear (15).

5. A wheat cultivation irrigation water detection and sampling device according to claim 4, characterized in that: The inner top and inner bottom of the hollow disk (3) are fixedly mounted with mounting blocks (13), the surfaces of the two rotating shafts (11) are respectively mounted inside the two mounting blocks (13), and the surface of each rotating shaft (11) is sleeved with a torsion spring (12), with the two ends of the torsion spring (12) respectively fixedly mounted on the side of the mounting block (13) and the surface of the rotating shaft (11).

6. A wheat cultivation irrigation water detection and sampling device according to claim 5, characterized in that: The surfaces of the two rotating shafts (11) are fixedly sleeved with sleeve discs (18), and the surface of each sleeve disc (18) is provided with a plurality of circular grooves (22) evenly distributed in an annular shape. Two knobs (4) are rotatably mounted on the outer side of the hollow disc (3), and the centers of the end faces of the two knobs (4) are fixedly mounted on the centers of the end faces of the two rotating shafts (11) through connecting shafts.

7. A wheat cultivation irrigation water detection and sampling device according to claim 6, characterized in that: A first float (7) is provided inside the sampling barrel (1), and a connecting rod (8) is vertically fixedly installed at the bottom of the first float (7). The end of the connecting rod (8) passes through the connection surface between the sampling barrel (1) and the hollow disk (3), and the end of the connecting rod (8) is inserted into the corresponding circular groove (22). The end of the connecting rod (8) is provided with a first slope.

8. A wheat cultivation irrigation water detection and sampling device according to claim 7, characterized in that: A second float (21) is provided between the bottom of the hollow disk (3) and the first impeller (5), and a folding rod (19) is provided inside the hollow disk (3). The lower vertical side of the folding rod (19) passes through the bottom of the hollow disk (3) and is fixedly mounted on the top of the second float (21). The surface of the lower vertical side of the folding rod (19) and the inner wall of the bottom of the hollow disk (3) are slidably connected via a spline. The upper vertical side end of the folding rod (19) is inserted into the corresponding circular groove (22), and the upper vertical side end of the folding rod (19) is provided with a second slope.

9. A wheat cultivation irrigation water detection and sampling device according to claim 8, characterized in that: A cylinder (20) is horizontally arranged inside the hollow disk (3), and the top end of the cylinder (20) passes through the hollow disk (3) and is connected to the outside. A sliding disk (26) is slidingly arranged inside the cylinder (20), and a spring rod (27) installed on the inner end of the cylinder (20) is fixed inside the sliding disk (26). A second inclined block (24) is fixedly installed on the vertical side corresponding to the folding rod (19). A first inclined block (23) is arranged inside the hollow disk (3), and an L-shaped rod (28) is fixedly installed on the top end of the first inclined block (23). The L-shaped rod (28) is fixedly installed on the side of the sliding disk (26) after the horizontal side passes through the end face of the cylinder (20).

10. A wheat cultivation irrigation water detection and sampling device according to claim 9, characterized in that: A lifting rod is vertically fixedly installed on the top of the sampling barrel (1), and a connecting pipe (2) is horizontally installed on the side of the sampling barrel (1), and a solenoid valve is installed on the surface of the connecting pipe (2).

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