Water delivery device for farmland water conservancy irrigation

Abstract

The invention relates to the technical field of irrigation devices, in particular to a water delivery device for irrigation and water conservancy irrigation. The problems that holes are left after an existing device retracts underground, and normal work of the existing device is affected after soil around the holes falls into the holes are solved. Comprising a protective shell; the fixed pipe is arranged in the protective shell, the fixed pipe is in sliding connection with a sliding pipe, and a first spring is arranged between the sliding pipe and the fixed pipe; an adjusting shell communicates with the upper side of the sliding pipe, the adjusting shell is rotationally connected with the sliding pipe, and the upper side of the adjusting shell communicates with a spray head; and the protective cover is rotationally connected to the upper side of the protective shell. The protection cover is opened during irrigation, the sliding pipe extends out of the fixed pipe, the sliding pipe retracts into the fixed pipe when irrigation is stopped, and the protection cover is closed, so that the spray head is protected, the situation that the sliding pipe cannot extend out during next irrigation is avoided, and normal use of the device is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of irrigation devices, and in particular to a water delivery device for farmland water conservancy irrigation. Background Art

[0002] The water delivery device for farmland irrigation is the key equipment to ensure the effective delivery of water resources to farmland, which plays an important role in improving agricultural productivity and saving water. According to different irrigation systems and technical requirements, these water delivery devices can be divided into many types, each with its specific application scenarios and advantages. The water delivery methods include: channel water delivery, pipeline water delivery, drip irrigation system, sprinkler irrigation system, micro sprinkler irrigation system and underground irrigation. The sprinkler irrigation system is a nozzle installed in a fixed position, which automatically sprays according to a preset mode and is suitable for large-scale farmland irrigation.

[0003] However, in the existing sprinkler irrigation system, the water pipe and the nozzle extend out of the ground during irrigation, and retract into the ground after the irrigation is completed. After the water pipe and the nozzle retract, holes are left on the ground, and the soil around the holes enters the holes due to biological activities and farming. At this time, the water pipe and the nozzle are blocked when they extend out of the ground again. If the resistance is too great, the water pipe and the nozzle cannot be extended, affecting the normal irrigation of the sprinkler irrigation system. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a water delivery device for farmland water conservancy irrigation.

[0005] The technical solution is: a water delivery device for farmland irrigation, comprising: Protective case; A fixed tube, disposed in the protective shell, wherein the fixed tube is slidably connected to a sliding tube, and a first spring is disposed between the sliding tube and the fixed tube; The adjusting shell is connected to the upper side of the sliding tube, the adjusting shell is rotatably connected to the sliding tube, and the upper side of the adjusting shell is connected to a spray head; The protective cover is rotatably connected to the upper side of the protective shell.

[0006] Furthermore, it also includes: A first shell, hinged in the protective shell, the first shell being in communication with the fixing pipe; The first sliding rod is hinged to the lower side of the protective cover. The first sliding rod is slidably connected to the first shell and a first tension spring is arranged between the two.

[0007] Furthermore, it also includes: A first limiting column is slidably connected to the sliding tube, a second spring is provided between the first limiting column and the sliding tube, the fixed tube is provided with a first limiting groove, and the first limiting column is used to limit the sliding tube; A baffle is fixedly connected in the fixed tube, and the baffle is used to block the sliding tube.

[0008] Furthermore, it also includes: There are several rotating plates, all hinged to the protective cover; There are a plurality of second shells, each of which is hinged to the protection cover, and each of the plurality of second shells is connected to the fixed pipe; There are a plurality of second sliding rods which are respectively hinged to the adjacent rotating plates. The second sliding rods are slidably connected to the adjacent second shells and a second tension spring is arranged between the two.

[0009] Furthermore, it also includes: There are a plurality of soil retaining members, each of which is arranged between two adjacent rotating plates and is made of a flexible material.

[0010] Furthermore, it also includes: The second limiting column is slidably connected to the first slide rod, a third spring is arranged between the second limiting column and the first slide rod, the first shell is provided with a second limiting groove, and the second limiting column is used to limit the first slide rod.

[0011] Furthermore, it also includes: An adjustment plate, slidably connected to the adjustment shell, and a third tension spring is provided between the adjustment plate and the adjustment shell; The adjusting rod is slidably connected to the adjusting shell, and the adjusting rod is fixedly connected to the adjusting plate.

[0012] Furthermore, it also includes: A mounting rod fixedly connected to the sliding tube; An adjusting ring is slidably connected to the mounting rod, and the adjusting ring is used to squeeze the adjusting rod.

[0013] Furthermore, it also includes: A rotating member, the sliding tube is fixedly connected to a mounting member, the rotating member is rotatably connected to the mounting member of the sliding tube, the rotating member is spline-connected to a sliding rod, a fourth spring is provided between the sliding rod and the rotating member, and the sliding rod is fixedly connected to the adjusting ring; There are several centrifugal columns, all of which are slidably connected to the rotating member, and thin ropes are arranged between the several centrifugal columns and the sliding rod, and the thin ropes pass through the rotating member; There are a plurality of blades, all of which are fixedly connected to the rotating member.

[0014] Furthermore, it also includes: The wind direction plate is fixedly connected to the sliding tube, and the wind direction plate and the rotating member are respectively located on both sides of the sliding tube.

[0015] Beneficial effect: The present invention opens the protective cover during irrigation and allows the sliding tube to extend from the fixed tube. When irrigation is stopped, the sliding tube is retracted into the fixed tube and the protective cover is closed, thereby protecting the nozzle and preventing the sliding tube from being unable to extend during the next irrigation, thereby ensuring the normal use of the device.

[0016] By rotating a plurality of rotating plates before the protective cover is opened, the soil on the upper side of the rotating plates is turned over to the upper side of the protective cover, thereby preventing the soil on the edge from sliding into the protective shell when the protective cover is opened.

[0017] The wind blows the blades to drive the rotating part to rotate, thereby adjusting the position of the adjustment ring. When the nozzle faces different directions, the position of the adjustment plate is adjusted according to the wind speed in that direction to reduce the impact of wind flow on irrigation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the protective shell and the protective cover of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the regulating shell and the nozzle of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the fixed tube and the sliding tube of the present invention; Figure 5 It is a three-dimensional structural cross-sectional view of the rotating plate and the second shell of the present invention; Figure 6 It is a three-dimensional structural cross-sectional view of the first housing and the first sliding rod of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the sliding rod and the centrifugal column of the present invention.

[0019] Figure numbers: 1-protective shell, 2-fixed tube, 3-sliding tube, 4-adjusting shell, 5-nozzle, 6-protective cover, 7-first shell, 8-first sliding rod, 9-first limiting column, 91-baffle, 10-rotating plate, 11-second shell, 12-second sliding rod, 13-soil retaining member, 14-second limiting column, 15-adjusting plate, 16-adjusting rod, 17-mounting rod, 18-adjusting ring, 19-rotating member, 20-sliding rod, 21-centrifugal column, 22-blade, 23-wind deflector. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] A water delivery device for farmland irrigation, such as Figure 1-Figure 4 As shown, it includes: a protective shell 1; a fixed tube 2, which is arranged in the protective shell 1, the fixed tube 2 is slidably connected to the sliding tube 3, and a first spring is arranged between the sliding tube 3 and the fixed tube 2; an adjusting shell 4 is connected to the upper side of the sliding tube 3, the adjusting shell 4 is rotatably connected to the sliding tube 3, and the upper side of the adjusting shell 4 is connected to the nozzle 5; a protective cover 6, which is rotatably connected to the upper side of the protective shell 1.

[0022] Further, such as Figure 2 and Figure 3 As shown, it also includes: a first shell 7, which is hinged in the protective shell 1 and is connected to the fixed tube 2; a first slide rod 8, which is hinged to the lower side of the protective cover 6, and is slidably connected to the first shell 7 and a first tension spring is arranged between the two.

[0023] In the above scheme, the purpose is to protect the nozzle 5 and automatically open the protective cover 6 when the nozzle 5 extends out of the ground. The protective shell 1 is buried in the soil, and the protective cover 6 is flush with the ground when closed. The fixed pipe 2 is connected to the water supply device, which is an existing device and will not be described in detail here. The first spring between the sliding pipe 3 and the fixed pipe 2 is used to reset the sliding pipe 3. During irrigation, the sliding pipe 3 moves upward under the action of water pressure and compresses the first spring between the sliding pipe 3 and the fixed pipe 2. The nozzle 5 is an existing device, which will drive the adjustment shell 4 to rotate slowly while spraying water. The figure is only for illustration. The first tension spring between the first slide bar 8 and the first shell 7 is used to drive the first slide bar 8 to reset the protective cover 6 at the end of irrigation.

[0024] Further, such as Figure 4 As shown, it also includes: a first limiting column 9, which is slidably connected to the sliding tube 3, a second spring is arranged between the first limiting column 9 and the sliding tube 3, the fixed tube 2 is provided with a first limiting groove, and the first limiting column 9 is used to limit the sliding tube 3; a baffle 91, which is fixed in the fixed tube 2, and the baffle 91 is used to block the sliding tube 3.

[0025] In the above scheme, the purpose is to extend the sliding tube 3 after the protective cover 6 is opened. The second spring between the first limit column 9 and the sliding tube 3 is initially in a compressed state, so that the sliding tube 3 can overcome the resistance of the first limit column 9 and move only after receiving a certain thrust. The baffle 91 is used to allow the water in the fixed tube 2 to enter the first housing 7 first and then enter the sliding tube 3.

[0026] Further, such as Figure 2 , Figure 3 and Figure 5 As shown, it also includes: a rotating plate 10, which has several pieces and is hinged to the protective cover 6; a second shell 11, which has several pieces and is hinged to the protective cover 6, and the several second shells 11 are connected to the fixed pipe 2; a second sliding rod 12, which has several pieces and is respectively hinged to adjacent rotating plates 10, and the second sliding rod 12 is slidably connected to the adjacent second shell 11 and a second tension spring is arranged between the two.

[0027] Further, such as Figure 1 As shown, it also includes: a soil retaining member 13, which has a plurality of soil retaining members 13, and is arranged between two adjacent rotating plates 10. The soil retaining member 13 is made of a flexible material.

[0028] In the above scheme, it is intended to prevent soil from sliding into the protective shell 1 when the protective cover 6 is opened. In the figure, there are three rotating plates 10, which are respectively located at the three sides of the protective cover 6. Except for the side where the protective cover 6 is connected to the protective shell 1, the number of the second shells 11 and the number of the second slide bars 12 are consistent with the number of the rotating plates 10. The second tension spring between the second slide bar 12 and the second shell 11 is used to reset the rotating plate 10 driven by the second slide bar 12. The elastic coefficient of the second tension spring is smaller than the elastic coefficient of the first tension spring between the first slide bar 8 and the first shell 7. The elastic coefficient of the first tension spring is smaller than the elastic coefficient of the first spring between the sliding tube 3 and the fixed tube 2. The soil retaining member 13 can be a cloth product or an elastic material. When the rotating plate 10 is turned over, the soil retaining member 13 is used to prevent soil from leaking out of the gap between two adjacent rotating plates 10.

[0029] Further, such as Figure 6 As shown, it also includes: a second limiting column 14, which is slidably connected to the first slide rod 8, a third spring is arranged between the second limiting column 14 and the first slide rod 8, and the first shell 7 is provided with a second limiting groove, and the second limiting column 14 is used to limit the first slide rod 8.

[0030] In the above scheme, the purpose is to open the protective cover 6 after the rotating plate 10 is turned over. The third spring between the second limiting column 14 and the first sliding rod 8 is initially in a compressed state, but the resistance of the second limiting column 14 to the first sliding rod 8 is smaller than the resistance of the first limiting column 9 to the sliding tube 3, so that the rotating plate 10, the protective cover 6 and the sliding tube 3 move in sequence.

[0031] Working process: When using the device, several devices are buried in the farmland as needed, and then the fixed pipe 2 is connected to the water supply device. When the farmland needs to be irrigated, the water supply device is used to supply water, and the water flows into the fixed pipe 2, and then enters the first shell 7 and the second shell 11. At this time, the sliding pipe 3 and the first shell 7 are both limited, so they do not move temporarily. The water flows into the second shell 11 and pushes the second slide bar 12 to move and stretch the second tension spring adjacent to it. The second slide bar 12 moves and pushes the rotating plate 10 to rotate, so that the second slide bar 12 rotates, so that the soil on the rotating plate 10 and the soil retaining member 13 slides to the upper side of the protective cover 6, thereby preventing the soil on the edge of the protective cover 6 from falling into the protective shell 1 when the protective cover 6 is opened. When the second slide bar 12 moves to the maximum distance, the liquid pressure in the first shell 7 increases, pushing the first slide bar 8 to overcome the resistance of the second limiting column 14 and move and stretch the first tension spring adjacent to it. The first slide bar 8 squeezes the second limiting column 14, so that the second limiting column 14 moves and compresses the third spring adjacent to it, and the first slide bar 8 pushes the protective cover 6 stops moving after opening, the water pressure in the fixed pipe 2 continues to increase and pushes the sliding pipe 3 to move, the sliding pipe 3 moves upward and separates from the baffle 91, so that the fixed pipe 2 is connected with the sliding pipe 3, and the sliding pipe 3 compresses the first spring adjacent to it when moving, and drives the first limiting column 9 to move, and the first limiting column 9 is squeezed by the fixed pipe 2 to move and compress the second spring adjacent to it. After the fixed pipe 2 is connected with the sliding pipe 3, the water flows into the sliding pipe 3 and is sprayed from the nozzle 5 through the adjusting shell 4. At this time, although the water flows out from the nozzle 5, the fixed pipe 2 still has a high water pressure (just like the tap water system). At this time, the water pressure in the fixed pipe 2 continues to push the sliding pipe 3 to move, so that the sliding pipe 3 is fully extended, and then the farmland can be irrigated. When the irrigation is finished, the water supply device is turned off, and the sliding pipe 3 is reset first under the action of the first spring adjacent to it, and then the first slide bar 8 drives the protective cover 6 to reset under the action of the first tension spring adjacent to it, and finally the second slide bar 12 drives the rotating plate 10 to reset under the action of the second tension spring adjacent to it.

[0032] Further, such as Figure 4 As shown, it also includes: an adjustment plate 15 slidably connected to the adjustment shell 4 , and a third tension spring is arranged between the adjustment plate 15 and the adjustment shell 4 ; an adjustment rod 16 slidably connected to the adjustment shell 4 , and the adjustment rod 16 is fixedly connected to the adjustment plate 15 .

[0033] In the above scheme, the purpose is to adjust the water spraying force of the nozzle 5. The third tension spring between the adjustment plate 15 and the adjustment housing 4 is in a stretched state, so that the adjustment rod 16 and the adjustment ring 18 are kept in close contact.

[0034] Further, such as Figure 3 and Figure 4As shown, it also includes: a mounting rod 17 fixed to the sliding tube 3; an adjusting ring 18 slidably connected to the mounting rod 17, and the adjusting ring 18 is used to squeeze the adjusting rod 16.

[0035] In the above scheme, the position of the adjusting plate 15 is adjusted. The adjusting plate 15 initially blocks half of the flow area of ​​the adjusting housing 4, which is the normal water spraying state of the device in the absence of wind. A roller can be provided on the adjusting rod 16 to reduce the resistance when the adjusting rod 16 and the adjusting ring 18 slide relative to each other.

[0036] Further, such as Figure 3 , Figure 4 and Figure 7 As shown, it also includes: a rotating member 19, the sliding tube 3 is fixedly connected to a mounting member, the rotating member 19 is rotatably connected to the mounting member of the sliding tube 3, the rotating member 19 is splinedly connected to a sliding rod 20, a fourth spring is arranged between the sliding rod 20 and the rotating member 19, and the sliding rod 20 is fixedly connected to the adjusting ring 18; there are a plurality of centrifugal columns 21, all of which are slidably connected to the rotating member 19, a thin rope is arranged between the plurality of centrifugal columns 21 and the sliding rod 20, and the thin rope passes through the rotating member 19; there are a plurality of blades 22, all of which are fixedly connected to the rotating member 19.

[0037] In the above scheme, the position of the adjusting ring 18 is adjusted according to the wind speed. The rotating member 19 is composed of a circular shell with a larger diameter and a plurality of circular shells with smaller diameters, and the plurality of circular shells with smaller diameters are evenly distributed in the circumference. When the rotating member 19 rotates, the centrifugal column 21 is thrown out by the centrifugal force, and the sliding rod 20 is pulled to move by the thin rope adjacent to it, thereby changing the position of the adjusting ring 18.

[0038] Further, such as Figure 3 As shown, it also includes: a wind deflector 23 fixed to the sliding tube 3, and the wind deflector 23 and the rotating member 19 are respectively located on both sides of the sliding tube 3.

[0039] In the above scheme, the purpose is to make the rotating member 19 face the wind flow. Figure 3 For example, when wind blows from front to back, the thrust of the wind on the wind deflector 23 is greater than the thrust of the wind on the mounting member, the adjusting ring 18, the rotating member 19 and the sliding rod 20 on the sliding tube 3, so that the wind deflector 23 can drive the sliding tube 3 to rotate when the wind blows.

[0040] Working process: During irrigation, the nozzle 5 drives the adjusting shell 4 to rotate, and the adjusting shell 4 drives the adjusting rod 16 to rotate. When there is wind, the wind blows the blades 22, and the blades 22 drive the rotating member 19 to rotate. When the rotating member 19 rotates, the centrifugal column 21 is thrown out by the centrifugal force, and the sliding rod 20 is pulled to move by the thin rope adjacent to it, and the sliding rod 20 drives the adjusting ring 18 to move. Figure 4For example, the adjusting ring 18 moves to the right. At this time, the adjusting plate 15 drives the adjusting rod 16 to move to the right under the action of the third tension spring adjacent to it, so that the cross-sectional area of ​​the adjusting shell 4 is opened larger, so as to enhance the power of the water flow sprayed from the nozzle 5 (just like in the tap system, when the faucet is opened wide, the power of the water flow is strong, and when the faucet is opened slightly, the power of the water flow is weak), thereby overcoming the resistance of the wind flow. In the process of the adjusting shell 4 driving the adjusting rod 16 to rotate 180°, the area blocked by the adjusting plate 15 on the adjusting shell 4 gradually increases, so that the power of the water flow sprayed from the nozzle 5 gradually decreases from the maximum. After the adjusting rod 16 rotates 180°, the power of the water flow is reduced to the minimum. At this time, the water flow can move a longer distance under the impetus of the wind flow, thereby reducing the influence of the wind flow on the irrigation position when the device irrigates the farmland.

[0041] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

Claims

1. A water delivery device for farmland irrigation, characterized in that: Included are: Protective case (1); A fixed tube (2) is arranged in the protective shell (1), the fixed tube (2) is slidably connected to a sliding tube (3), and a first spring is arranged between the sliding tube (3) and the fixed tube (2); The regulating shell (4) is connected to the upper side of the sliding tube (3), the regulating shell (4) is rotatably connected to the sliding tube (3), and the upper side of the regulating shell (4) is connected to a spray head (5); A protective cover (6) is rotatably connected to the upper side of the protective shell (1).

2. A water delivery device for farmland irrigation according to claim 1, characterized in that: Also included are: A first shell (7) is hinged inside the protective shell (1), and the first shell (7) is in communication with the fixed pipe (2); A first sliding rod (8) is hinged to the lower side of the protective cover (6); the first sliding rod (8) is slidably connected to the first housing (7) and a first tension spring is provided between the two.

3. A water delivery device for farmland irrigation according to claim 2, characterized in that: Also included are: A first limiting column (9) is slidably connected to the sliding tube (3), a second spring is provided between the first limiting column (9) and the sliding tube (3), the fixed tube (2) is provided with a first limiting groove, and the first limiting column (9) is used to limit the sliding tube (3); A baffle (91) is fixedly connected inside the fixed tube (2), and the baffle (91) is used to block the sliding tube (3).

4. A water delivery device for farmland irrigation according to claim 3, characterized in that: Also included are: A plurality of rotating plates (10) each hinged to the protective cover (6); A plurality of second shells (11) are hinged to the protective cover (6), and the plurality of second shells (11) are connected to the fixed pipe (2); There are a plurality of second sliding rods (12), which are respectively hinged to adjacent rotating plates (10); the second sliding rods (12) are slidably connected to adjacent second shells (11), and a second tension spring is provided between the two.

5. A water delivery device for farmland irrigation according to claim 4, characterized in that: Also included are: There are a plurality of soil retaining members (13), each of which is arranged between two adjacent rotating plates (10), and each of which is made of a flexible material.

6. A water delivery device for farmland irrigation according to claim 5, characterized in that: Also included are: A second limiting column (14) is slidably connected to the first sliding rod (8), a third spring is provided between the second limiting column (14) and the first sliding rod (8), the first housing (7) is provided with a second limiting groove, and the second limiting column (14) is used to limit the first sliding rod (8).

7. A water delivery device for farmland irrigation according to claim 6, characterized in that: Also included are: An adjustment plate (15) is slidably connected to the adjustment shell (4), and a third tension spring is provided between the adjustment plate (15) and the adjustment shell (4); An adjusting rod (16) is slidably connected to the adjusting shell (4), and the adjusting rod (16) is fixedly connected to the adjusting plate (15).

8. The water delivery device for farmland irrigation according to claim 7, characterized in that: Also included are: A mounting rod (17) fixedly connected to the sliding tube (3); An adjusting ring (18) is slidably connected to the mounting rod (17), and the adjusting ring (18) is used to squeeze the adjusting rod (16).

9. The water delivery device for farmland irrigation according to claim 8, characterized in that: Also included are: a rotating member (19), the sliding tube (3) being fixedly connected to a mounting member, the rotating member (19) being rotatably connected to the mounting member of the sliding tube (3), the rotating member (19) being spline-connected to a sliding rod (20), a fourth spring being provided between the sliding rod (20) and the rotating member (19), and the sliding rod (20) being fixedly connected to the adjusting ring (18); There are a plurality of centrifugal columns (21), each of which is slidably connected to the rotating member (19); a thin rope is provided between each of the centrifugal columns (21) and the sliding rod (20), and the thin rope passes through the rotating member (19); There are a plurality of blades (22), all of which are fixedly connected to the rotating member (19).

10. A water delivery device for farmland irrigation according to claim 9, characterized in that: Also included are: The wind direction plate (23) is fixedly connected to the sliding tube (3); the wind direction plate (23) and the rotating member (19) are respectively located on two sides of the sliding tube (3).

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