Irrigation device for crops in sandy land

Abstract

The present invention belongs to the technical field of crop irrigation and specifically discloses an irrigation device for crops in sandy soil, comprising an automatic locking assembly for opening and closing legs, a water supply opening and closing assembly, a torsion locking assembly, and an adaptive water supply mechanism. The automatic locking assembly for opening and closing legs is arranged in a ring shape on the water supply opening and closing assembly, the adaptive water supply mechanism is arranged on the water supply opening and closing assembly, and the torsion locking assembly is arranged on the adaptive water supply mechanism. The present invention automatically opens and closes the water supply opening and closing assembly and retracts and releases the torsion locking assembly by automatically expanding and closing the swinging legs during installation and lifting, thereby greatly simplifying the manual operation steps and achieving the technical effect of automatically starting to spray water after installation and automatically stopping spraying water when lifted and moved.

Description

Technical Field

[0001] The invention belongs to the technical field of crop irrigation, and in particular relates to an irrigation device for crops in sandy land. Background Art

[0002] Sandy land generally exists in a relatively water-scarce environment. Compared with flood irrigation in plain areas, drip irrigation and sprinkler irrigation are relatively more water-saving methods of crop irrigation. Since sprinkler irrigation devices can only act on the area around themselves, and the cost of sprinkler irrigation equipment is higher than drip irrigation (drip irrigation pipes are low-cost and can be pre-buried and fully laid), when using sprinkler irrigation devices for irrigation, the position of the sprinkler irrigation devices needs to be moved frequently.

[0003] Currently, when moving a sprinkler irrigation device, it is generally necessary to first close the water supply pipe, then move the device to a new location, and finally open the water supply again, which is a rather cumbersome procedure.

[0004] Moreover, since the water output efficiency of the sprinkler is determined by the water supply pressure, when the water supply pressure fluctuates, the water spraying efficiency will also fluctuate accordingly. This makes it impossible to control the uniform irrigation of each area according to the irrigation time, which is not conducive to the conservation and precise distribution of water resources. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a sandy crop irrigation device that can automatically reduce the fluctuation of sprinkler efficiency through negative feedback adjustment when the water supply pressure fluctuates; utilizing the force balance at both ends of the piston plate, the sprinkler efficiency is automatically negatively feedback adjusted and compensated through the floating piston plate, thereby reducing the degree of change in sprinkler efficiency when the water supply pressure changes; however, the freely floating piston plate is still in a floating state during movement and transportation. In order to avoid damage during movement and transportation, the present invention also creatively proposes an automatic locking assembly for opening and closing legs, a water supply opening and closing assembly, and a torsional locking assembly. By automatically expanding and closing the swinging legs during installation and lifting, the opening and closing of the water supply opening and closing assembly and the contraction and release of the torsional locking assembly can be automatically realized, thereby greatly simplifying the steps of manual operation and achieving the technical effect of automatically starting to spray water after the installation is completed and automatically stopping to spray water when lifted and moved.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an irrigation device for crops in sandy land, comprising an automatic locking assembly for opening and closing legs, a water supply opening and closing assembly, a torsion locking assembly, and an adaptive water supply mechanism, wherein the automatic locking assembly for opening and closing legs is arranged in an annular manner on the water supply opening and closing assembly, the adaptive water supply mechanism is arranged on the water supply opening and closing assembly, and the torsion locking assembly is arranged on the adaptive water supply mechanism;

[0007] Furthermore, the opening and closing leg automatic locking assembly includes a leg mounting rod and a swing leg, the leg mounting rod is arranged on the water supply opening and closing assembly, the middle part of the swing leg is rotatably arranged on the leg mounting rod, and a reset spring is provided between the water supply opening and closing assembly and the swing leg. When the end of the swing leg contacts the ground and continues to press the device downward, the end of the swing leg can swing outward and unfold, and at the same time complete the release of the torsion locking assembly and the opening of the water supply opening and closing assembly.

[0008] The swing leg automatically expands when pressed, and can simultaneously release the torsion locking assembly and open the water supply on-off assembly. The swing leg automatically contracts when lifted, and can simultaneously tighten the torsion locking assembly and close the water supply on-off assembly. Therefore, there is no need for a separate control action, and the start and stop of the sprinkler irrigation can be automatically controlled during the position transfer of the device.

[0009] Furthermore, the water supply opening and closing assembly includes a water supply tray and a water baffle. The bottom of the water supply tray is provided with a bottom joint, and the bottom joint is connected to the external water supply pipe. The water supply tray is also provided with a flange, and the flange is provided with an arc groove 1. The water baffle is provided with an arc groove 2 corresponding to the arc groove 1. When the arc groove 1 and the arc groove 2 overlap, water can be allowed to flow through.

[0010] When the swing legs are unfolded, the water baffle is pulled outward to a certain extent, so that the originally non-overlapping arc grooves 1 and 2 are changed to overlap. At this time, the water in the water supply tray can enter the inner sleeve through the arc grooves 1 and 2.

[0011] Preferably, the flange is provided with sliding guide protrusions evenly distributed in an annular manner, and the water baffle is slidably engaged between the protrusions. The water supply opening and closing assembly also includes an outer sleeve, which is fixed to the flange, and the reset spring is provided between the outer sleeve and the swing leg.

[0012] As a further preferred embodiment of the present invention, a spring mounting portion is provided on the swing leg, a water retaining spring is provided at the end of the water retaining plate, the other end of the water retaining spring is provided on the spring mounting portion, the leg mounting rod is fixed to the outer sleeve, and the number of the water retaining plates is equal to the number of the automatic locking assemblies of the opening and closing legs.

[0013] The portion where the swing leg contacts the ground can be provided with foot covers of different sizes according to the softness of the soil, thereby avoiding the embarrassing situation that the swing leg is inserted into the soil and cannot be unfolded when the device is pressed.

[0014] Furthermore, the adaptive water supply mechanism includes an inner sleeve, a water supply countermeasure component and a sprinkler assembly, the inner sleeve is fixed to a protrusion on the flange, and the water baffle maintains a seal when sliding between the inner sleeve and the flange;

[0015] Preferably, the water supply countermeasure component is arranged inside the inner sleeve, and the sprinkler assembly is arranged outside the inner sleeve.

[0016] When the water supply pressure fluctuates, the adaptive water supply mechanism can automatically perform negative feedback compensation by changing the overlapping area of ​​the water window 2 and the water window 1, thereby reducing the change in sprinkler speed caused by the water supply pressure fluctuation and achieving the technical effect of stable sprinkler irrigation.

[0017] Furthermore, the torsion locking assembly consists of a flexible sleeve and a lifting guide rod. The flexible sleeve is provided with a mounting plate, and the mounting plate is fixedly connected to the water supply antagonism assembly. The flexible sleeve is also provided with a center opening, and the lifting guide rod is located in the center opening. The swing leg is provided with a steel wire rope, and the end of the steel wire rope is provided on the side of the flexible sleeve. When the steel wire rope is pulled, the flexible sleeve can undergo torsional deformation and wrap and clamp the lifting guide rod.

[0018] When the swing leg is unfolded, the elastic reset of the flexible cover can release the wrapping of the lifting guide rod; when the swing leg is folded, the lifting guide rod can be wrapped and fixed by the deformation of the flexible cover, thereby fixing the position of the piston plate, thereby avoiding the problem of damage to the piston plate due to its own floating during transportation and relocation.

[0019] Preferably, the water supply antagonism component includes a top plate, a piston plate and a preload spring, the top plate is fixed to the top of the inner sleeve, the mounting plate is fixed to the top plate, the piston plate is snap-fitted and slidably arranged in the inner sleeve, the inner sleeve is annularly evenly provided with water window 1, the piston plate is annularly evenly provided with water window 2 matching water window 1, when water window 1 and water window 2 overlap, water can be allowed to flow through, and the size of the overlapping area can change the efficiency of the water flow, and the preload spring is arranged between the top plate and the piston plate.

[0020] As a further preferred embodiment of the present invention, the sprinkler assembly includes a water trough and an annular nozzle, the water trough is sleeved on the outside of the inner sleeve, the annular nozzle is arranged on the top of the interlayer between the water trough and the inner sleeve, and annular nozzles are evenly distributed in an annular shape on the annular nozzle, so that water in the water trough can be sprayed out obliquely in all directions through the annular nozzles.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] (1) The swing leg automatically unfolds when pressed, and can simultaneously release the torsion locking assembly and open the water supply on-off assembly. The swing leg automatically contracts when lifted, and can simultaneously tighten the torsion locking assembly and close the water supply on-off assembly. Thus, the start and stop of the sprinkler irrigation can be automatically controlled during the position transfer of the device without the need for a separate control action.

[0023] (2) When the swing legs are unfolded, the water baffle is pulled outward to a certain extent, so that the arc groove 1 and arc groove 2, which originally did not overlap, become overlapping. At this time, the water in the water supply tray can enter the inner sleeve through the arc groove 1 and arc groove 2.

[0024] (3) The part where the swing leg contacts the ground can be provided with foot covers of different sizes according to the softness of the soil, thereby avoiding the embarrassing situation that the swing leg is inserted into the soil and cannot be unfolded when the device is pressed.

[0025] (4) When the water supply pressure fluctuates, the adaptive water supply mechanism can automatically perform negative feedback compensation by changing the overlapping area of ​​the water window 2 and the water window 1, thereby reducing the change in sprinkler speed caused by the water supply pressure fluctuation and achieving the technical effect of stable sprinkler irrigation.

[0026] (5) When the swing leg is unfolded, the elastic return of the flexible cover can release the wrapping of the lifting guide rod; when the swing leg is folded, the deformation of the flexible cover can wrap and fix the lifting guide rod, thereby fixing the position of the piston plate, thereby avoiding the problem of damage to the piston plate due to its own floating during transportation and relocation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view of an irrigation device for crops in sandy soil proposed by the present invention;

[0028] Figure 2 This is a front view of an irrigation device for crops in sandy soil proposed by the present invention;

[0029] Figure 3 A top view of an irrigation device for crops in sandy soil proposed by the present invention;

[0030] Figure 4 for Figure 2 A cross-sectional view along the cutting line AA;

[0031] Figure 5 This is a schematic diagram of a half-section structure of an irrigation device for crops in sandy soil proposed by the present invention;

[0032] Figure 6 for Figure 4 A partial enlarged view of point Ⅰ in the middle;

[0033] Figure 7 for Figure 4 A partial enlarged view of the middle II;

[0034] Figure 8 for Figure 5 A partial enlarged view of point III in the middle;

[0035] Figure 9 for Figure 5 A partial enlarged view of the middle IV;

[0036] Figure 10 Schematic diagram of the rotation direction when the swing legs are deployed;

[0037] Figure 11 Schematic diagram of the torsion direction of the flexible cover when the swing leg is folded;

[0038] Figure 12 This is a schematic diagram of the installation position of the return spring in Example 2, wherein parts a and b respectively represent the states of the swing leg when it is unfolded and folded.

[0039] Among them, 1. Automatic locking assembly for opening and closing legs, 2. Water supply opening and closing assembly, 3. Twist locking assembly, 4. Adaptive water supply mechanism, 5. Leg mounting rod, 6. Swing leg, 7. Spring mounting part, 8. Steel wire rope, 9. Water supply plate, 10. Water baffle, 11. Outer sleeve, 12. Bottom joint, 13. Flange, 14. Arc groove one, 15. Arc groove two, 16. Water baffle spring, 17. Flexible wrapping, 18. Lifting guide rod, 19. Mounting plate, 20. Center mouth, 21. Inner sleeve, 22. Water supply countermeasure assembly, 23. Sprinkler assembly, 24. Water window one, 25. Top plate, 26. Piston plate, 27. Preload spring, 28. Water trough, 29. Annular nozzle, 30. Ring nozzle, 31. Guard frame, 32. Water window two, 33. Reset spring.

[0040] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0043] like Figures 1 to 9 As shown, the present invention proposes an irrigation device for crops in sandy land, comprising an opening and closing leg automatic locking assembly 1, a water supply opening and closing assembly 2, a torsion locking assembly 3 and an adaptive water supply mechanism 4. The opening and closing leg automatic locking assembly 1 is arranged in a ring shape on the water supply opening and closing assembly 2, the adaptive water supply mechanism 4 is arranged on the water supply opening and closing assembly 2, and the torsion locking assembly 3 is arranged on the adaptive water supply mechanism 4.

[0044] The opening and closing leg automatic locking assembly 1 includes a leg mounting rod 5 and a swing leg 6. The leg mounting rod 5 is arranged on the water supply opening and closing assembly 2. The middle part of the swing leg 6 is rotatably arranged on the leg mounting rod 5. A reset spring 33 is provided between the water supply opening and closing assembly 2 and the swing leg 6. When the end of the swing leg 6 contacts the ground and continues to press the device downward, the end of the swing leg 6 can swing outward and unfold, and at the same time complete the release of the torsion locking assembly 3 and the opening of the water supply opening and closing assembly 2.

[0045] The swing leg 6 automatically expands when pressed, and can simultaneously release the torsion locking assembly 3 and open the water supply on-off assembly 2. The swing leg 6 automatically contracts when lifted, and can simultaneously tighten the torsion locking assembly 3 and close the water supply on-off assembly 2. Therefore, there is no need for a separate control action, and the start and stop of the sprinkler irrigation can be automatically controlled during the position transfer of the device.

[0046] The water supply opening and closing assembly 2 includes a water supply pan 9 and a water baffle 10. A bottom joint 12 is provided at the bottom of the water supply pan 9, and the bottom joint 12 is connected to the external water supply pipe. The water supply pan 9 is also provided with a flange 13, and an arc groove 14 is provided on the flange 13. The water baffle 10 is provided with an arc groove 2 15 corresponding to the arc groove 14. When the arc groove 14 and the arc groove 2 15 overlap, water can be allowed to flow through.

[0047] When the swing leg 6 is unfolded, the water baffle 10 is pulled outward to a certain extent, so that the originally non-overlapping arc groove 14 and arc groove 2 15 are changed to overlap. At this time, the water in the water supply tray 9 can enter the inner sleeve 21 through the arc groove 14 and arc groove 2 15.

[0048] The flange 13 is also provided with sliding guide protrusions evenly distributed in an annular manner, and the water baffle 10 is engaged and slidably arranged between the protrusions. The water supply opening and closing assembly 2 also includes an outer sleeve 11, which is fixed to the flange 13, and a reset spring 33 is arranged between the outer sleeve 11 and the swing leg 6.

[0049] A spring mounting portion 7 is provided on the swing leg 6, a water retaining spring 16 is provided at the end of the water retaining plate 10, the other end of the water retaining spring 16 is provided on the spring mounting portion 7, the leg mounting rod 5 is fixed to the outer sleeve 11, and the number of water retaining plates 10 is equal to the number of the opening and closing leg automatic locking assemblies 1.

[0050] The portion where the swing leg 6 contacts the ground can be provided with foot covers of different sizes according to the softness of the soil, thereby avoiding the embarrassing situation that the swing leg 6 is inserted into the soil and cannot be unfolded when the device is pressed.

[0051] The adaptive water supply mechanism 4 includes an inner sleeve 21, a water supply countermeasure component 22 and a sprinkler component 23. The inner sleeve 21 is fixed to the protrusion on the flange 13. The water retaining plate 10 maintains a seal when sliding between the inner sleeve 21 and the flange 13.

[0052] The water supply countermeasure component 22 is disposed inside the inner sleeve 21 , and the sprinkler component 23 is disposed outside the inner sleeve 21 .

[0053] When the water supply pressure fluctuates, the adaptive water supply mechanism 4 can automatically perform negative feedback compensation by changing the overlapping area of ​​the water window 2 32 and the water window 1 24, thereby reducing the change in sprinkler speed caused by the water supply pressure fluctuation and achieving the technical effect of stable sprinkler irrigation.

[0054] The torsion locking assembly 3 consists of a flexible sleeve 17 and a lifting guide rod 18. The flexible sleeve 17 is provided with a mounting plate 19, which is fixed to the water supply antagonism assembly 22. The flexible sleeve 17 is also provided with a center opening 20, and the lifting guide rod 18 is located in the center opening 20. A steel wire rope 8 is provided on the swing leg 6, and the end of the steel wire rope 8 is provided on the side of the flexible sleeve 17. When the steel wire rope 8 is pulled, the flexible sleeve 17 can undergo torsion deformation and wrap and clamp the lifting guide rod 18.

[0055] When the swing leg 6 is unfolded, the elastic restoration of the flexible cover 17 can release the wrapping of the lifting guide rod 18; when the swing leg 6 is folded, the deformation of the flexible cover 17 can wrap and fix the lifting guide rod 18, thereby fixing the position of the piston plate 26, thereby avoiding the problem of transportation damage caused by the piston plate 26's own floating during transportation and relocation.

[0056] The water supply countermeasure component 22 includes a top plate 25, a piston plate 26 and a preload spring 27. The top plate 25 is fixed to the top of the inner sleeve 21, and the mounting plate 19 is fixed to the top plate 25. The piston plate 26 is snap-fitted and slidably arranged in the inner sleeve 21. Water windows 24 are evenly distributed in an annular shape on the inner sleeve 21, and water windows 2 32 matching water windows 24 are evenly distributed in an annular shape on the piston plate 26. When water windows 1 24 and water windows 2 32 overlap, water can be allowed to flow through, and the size of the overlapping area can change the efficiency of the water flow. The preload spring 27 is arranged between the top plate 25 and the piston plate 26.

[0057] The sprinkler assembly 23 includes a water trough 28 and an annular nozzle 29. The water trough 28 is sleeved on the outside of the inner sleeve 21. The annular nozzle 29 is arranged at the top of the interlayer between the water trough 28 and the inner sleeve 21. Annular nozzles 30 are evenly distributed in an annular shape on the annular nozzle 29. The water in the water trough 28 can be sprayed out obliquely in all directions through the annular nozzles 30.

[0058] A guard frame 31 is provided on the outer ring of the top plate 25 , and water sprayed from the annular nozzle 30 passes through the hollow portion of the guard frame 31 .

[0059] like Figure 10 As shown, point A is the hinge position of the swing leg 6. When the device is pressed and the swing leg 6 is unfolded, the arc arrow indicates the swing direction of the swing leg 6, the upper horizontal arrow indicates the movement direction of the wire rope 8, and the lower horizontal arrow indicates the movement direction of the spring mounting portion 7. Point B is the contact position between the swing leg 6 and the bottom surface. Different sizes of foot covers can be set according to the softness of the soil, thereby avoiding the embarrassing situation that the swing leg 6 is inserted into the soil when the device is pressed and cannot be unfolded.

[0060] The arc dotted line represents the trajectory of the water jet.

[0061] like Figure 11 As shown, the arc arrow indicates the twisting direction of the upper part of the flexible sheath 17 when the swing leg 6 is folded and the steel wire rope 8 provides tension.

[0062] like Figure 12 As shown, the fixing point of the return spring 33 on the swing leg 6 can also be located outside the hinge point of the leg mounting rod 5 and the swing leg 6. The dotted line indicates the position of the return spring 33. Part a indicates that after the swing leg 6 is unfolded, the return spring 33 has the ability to maintain the unfolded state; part b indicates that after the swing leg 6 is unfolded, the return spring 33 has the ability to maintain the folded state.

[0063] During specific use, the user first needs to connect the external water supply pipe to the bottom joint 12. When there is pressure in the external water supply, the water flow has a tendency to move from the water supply tray 9 toward the inside of the inner sleeve 21. If the arc groove 14 and the arc groove 2 15 overlap, the water flow can pass through the arc groove 14 and the arc groove 2 15 into the inner sleeve 21, and then enter the interlayer between the inner sleeve 21 and the water spray groove 28 through the overlapping area of ​​the water window 1 24 and the water window 2 32, and is sprayed out obliquely in all directions through the annular nozzle 30 to achieve sprinkler irrigation of the surrounding area.

[0064] The upper part of the piston plate 26 is subjected to the elastic squeezing force of the pre-compression spring 27, and the lower part of the piston plate 26 is subjected to the water pressure inside the inner sleeve 21. When the two reach a state of equilibrium, the position of the piston plate 26 will be stationary.

[0065] When the water supply pressure increases, the pressure exerted by the water flow on the piston plate 26 increases, and the piston plate 26 moves upward and compresses the pre-compression spring 27 until the elastic force of the pre-compression spring 27 increases to balance with the water pressure. During the upward movement of the piston plate 26, the overlapping area of ​​the water window 1 24 and the water window 2 32 decreases, thereby reducing the change in the sprinkler efficiency when the pressure increases.

[0066] When the water supply pressure decreases, the pressure applied by the water flow to the piston plate 26 decreases, and the piston plate 26 moves downward and releases the preload spring 27 until the elastic force of the preload spring 27 decreases to balance with the water pressure. During the downward movement of the piston plate 26, the overlapping area of ​​the water window 1 24 and the water window 2 32 increases, thereby reducing the change in the sprinkler efficiency when the pressure increases.

[0067] Through the above-mentioned negative feedback regulation, the change in sprinkler irrigation efficiency when the water supply pressure changes can be reduced, thereby achieving the technical effect of stable water spraying.

[0068] When the device needs to be moved or folded, it is only necessary to lift the device from the ground. After the soil is no longer blocking it, the swing leg 6 in the free state will be reset under the pulling force of the reset spring 33.

[0069] At this time, the bottom of the swing leg 6 contracts, and the water retaining plate 10 is pushed inward by the water retaining spring 16, so that the arc groove 14 and the arc groove 2 15 no longer overlap, thereby completing the closing of the water supply switch assembly 2;

[0070] At this time, the top of the swing leg 6 expands, thereby applying tension to the side of the upper half of the flexible sheath 17 through the wire rope 8; since the mounting plate 19 at the bottom of the flexible sheath 17 is fixed to the top plate 25, the upper half of the flexible sheath 17 will be twisted under the joint action of multiple above-mentioned tensions, so that the center opening 20 shrinks and wraps the lifting guide rod 18. At this time, the lifting guide rod 18 and the piston plate 26 can remain stationary relative to the inner sleeve 21 when subjected to smaller forces such as bumps and shaking.

[0071] The installation process of this device is also extremely simple. You only need to place the device on the ground, and continue to press down after the bottom of the swing leg 6 touches the ground. Since the line connecting the end of the swing leg 6 and the hinge point is inclined, the swing leg 6 will expand outward under the obstruction of the soil. After the swing leg 6 is fully expanded, it will sink slightly into the soil to maintain its own expanded state; when expanding, the swing leg 6 can simultaneously complete the opening of the water supply opening and closing component 2 and the unlocking of the torsion locking component 3.

[0072] The foot covers of different sizes can be provided according to the softness of the soil, thereby avoiding the embarrassing situation that the swing legs 6 are inserted into the soil and cannot be unfolded when the device is pressed.

[0073] As another new embodiment of the present invention, the fixing point of the return spring 33 on the swing leg 6 can also be located outside the hinge point of the leg mounting rod 5 and the swing leg 6. After the swing leg 6 is unfolded and folded, the return spring 33 is fixedly positioned on the swing leg 6 above and below the hinge point, respectively, and can maintain the current state of the swing leg 6 through its own tension; the swing leg 6 in this embodiment has higher stability, but an additional step of manually folding the swing leg 6 is required when lifting the device.

[0074] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0075] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An irrigation device for crops in sandy soil, characterized by: It includes an automatic locking assembly for opening and closing legs, a water supply opening and closing assembly, a torsion locking assembly and an adaptive water supply mechanism. The automatic locking assembly for opening and closing legs is arranged in a ring on the water supply opening and closing assembly, the adaptive water supply mechanism is arranged on the water supply opening and closing assembly, and the torsion locking assembly is arranged on the adaptive water supply mechanism. The automatic locking assembly of the opening and closing legs includes a leg mounting rod and a swing leg. The leg mounting rod is provided on the water supply opening and closing assembly. The middle portion of the swing leg is rotatably provided on the leg mounting rod. A return spring is provided between the water supply opening and closing assembly and the swing leg. When the end of the swing leg contacts the ground and the device is pressed downward, the end of the swing leg can swing outward and unfold, thereby completing the release of the torsion locking assembly and the opening of the water supply opening and closing assembly. The water supply opening and closing assembly includes a water supply tray and a water baffle. The bottom of the water supply tray is provided with a bottom joint, and the bottom joint is connected to the external water supply pipe. The water supply tray is also provided with a flange, and the flange is provided with an arc groove 1. The water baffle is provided with an arc groove 2 corresponding to the arc groove 1. When the arc groove 1 and the arc groove 2 overlap, they can allow water to flow through. The flange is also provided with sliding guide protrusions evenly distributed in an annular manner, and the water baffle is slidably engaged between the protrusions. The water supply switch assembly also includes an outer sleeve, which is fixed to the flange, and the return spring is provided between the outer sleeve and the swing leg; The swing leg is provided with a spring mounting portion, the end of the water baffle is provided with a water-blocking spring, the other end of the water-blocking spring is provided on the spring mounting portion, the leg mounting rod is fixed to the outer sleeve, and the number of the water baffles is equal to the number of the automatic locking assemblies of the opening and closing legs; The adaptive water supply mechanism includes an inner sleeve, a water supply countermeasure component and a sprinkler assembly, wherein the inner sleeve is fixed to a protrusion on the flange, and the water baffle maintains a seal when sliding between the inner sleeve and the flange; The water supply countermeasure component is arranged inside the inner sleeve, and the sprinkler assembly is arranged outside the inner sleeve; The torsion locking assembly consists of a flexible sleeve and a lifting guide rod. The flexible sleeve is provided with a mounting plate, and the mounting plate is fixedly connected to the water supply antagonism assembly. The flexible sleeve is also provided with a center opening, and the lifting guide rod is located in the center opening. The swing leg is provided with a steel wire rope, and the end of the steel wire rope is provided on the side of the flexible sleeve. When the steel wire rope is pulled, the flexible sleeve can undergo torsion deformation and wrap and clamp the lifting guide rod.

2. The irrigation device for crops in sandy soil according to claim 1, characterized in that: The water supply antagonism component includes a top plate, a piston plate and a preload spring. The top plate is fixed to the top of the inner sleeve, the mounting plate is fixed to the top plate, the piston plate is snap-fitted and slidably arranged in the inner sleeve, the inner sleeve is annularly evenly provided with water-passing windows 1, the piston plate is annularly evenly provided with water-passing windows 2 matching the water-passing windows 1, when the water-passing windows 1 and 2 overlap, water can be allowed to flow through, and the size of the overlapping area can change the efficiency of the water flow, and the preload spring is arranged between the top plate and the piston plate.

3. The irrigation device for crops in sandy soil according to claim 2, characterized in that: The sprinkler assembly includes a water trough and an annular nozzle. The water trough is sleeved on the outside of the inner sleeve. The annular nozzle is arranged on the top of the interlayer between the water trough and the inner sleeve. The annular nozzle is evenly distributed with annular nozzles in an annular shape. Water in the water trough can be sprayed out obliquely in all directions through the annular nozzles.

4. The irrigation device for crops in sandy soil according to claim 3, characterized in that: The outer circle of the top plate is provided with a guard frame, and water sprayed from the annular nozzle passes through the hollow part of the guard frame.

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