Drip irrigation pipeline for shallow-buried micro-irrigation

Abstract

The invention is applicable to the technical field of drip irrigation, and provides a drip irrigation pipeline for shallow-buried micro-irrigation, which comprises an irrigation pipeline and a drip irrigation head arranged on the irrigation pipeline, the drip irrigation head is communicated with the inside of the irrigation pipeline, and a filter plate for filtering irrigation water is arranged on the inner wall of the drip irrigation head close to the irrigation pipeline. A cleaning structure for cleaning the bottom of the filter plate is arranged on the filter plate, a mounting plate is arranged on the inner wall of the drip irrigation head, an unblocking structure for unblocking a drip opening of the drip irrigation head is arranged on the mounting plate, and a fan blade transmission structure is arranged in the irrigation pipeline; the lower side of the mounting plate is provided with a connecting structure for respectively controlling the cleaning structure and the blockage clearing structure to be connected with the fan blade transmission structure, and the blockage clearing structure is arranged, so that when a drip opening of the drip irrigation head is blocked by soil of a buried layer, a blockage clearing rod can dredge substances blocking the drip irrigation head, and smooth water flow in the drip irrigation head is effectively ensured; manual monitoring or electronic element monitoring is not needed, and the blockage clearing efficiency of the drip irrigation head is greatly guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of drip irrigation, and more particularly to a drip irrigation pipeline for shallow buried micro-irrigation. Background Art

[0002] Micro-irrigation is an agricultural water-saving technology. Micro-irrigation is an irrigation method that delivers water and nutrients required for crop growth at a smaller flow rate, evenly and accurately, directly to the soil near the roots of crops through a pipeline system and sprinklers installed on the final pipeline according to crop needs.

[0003] In order to reduce water evaporation, micro-irrigation technology generally buries drip irrigation pipes shallowly in the soil, which can ensure the absorption of nutrients by plants. However, during long-term use, the mud in the soil will inevitably enter the water outlet of the dripper, causing the water outlet of the dripper to be blocked, thereby affecting the drip irrigation effect of the drip irrigation pipe. At the same time, since the drip irrigation pipe is buried in the soil layer, it is generally difficult for staff to observe the specific situation of the drip irrigation pipe, affecting the irrigation effect on the plants. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a drip irrigation pipeline for shallow buried micro-irrigation.

[0005] To achieve the above object, the present invention provides the following technical solutions: A drip irrigation pipeline for shallow buried micro-irrigation, comprising an irrigation pipeline and a drip irrigation head arranged on the irrigation pipeline, the drip irrigation head being connected to the inside of the irrigation pipeline, a filter plate for filtering irrigation water being arranged on the inner wall of the drip irrigation head close to the irrigation pipeline, a cleaning structure for cleaning the bottom thereof being arranged on the filter plate, a mounting plate being arranged on the inner wall of the drip irrigation head, a clearing structure for clearing blockage of the drip nozzle of the drip irrigation head being arranged on the mounting plate, a fan blade transmission structure being arranged in the irrigation pipeline, a connection structure for controlling the cleaning structure and the clearing structure and connecting the fan blade transmission structure respectively being arranged on the lower side of the mounting plate, the clearing structure comprising a clearing rod, the clearing rod being arranged on a side of the mounting plate away from the mounting point, and a surface of the mounting plate close to the clearing rod being provided with a There is a movable groove, and a movable block is arranged at the lower end of the clearing rod. One side of the movable block extends into the movable groove and slides in the movable groove. A ball screw is rotatably connected between the upper and lower inner walls of the movable groove. A ball nut threadedly sleeved on the outer surface of the ball screw is arranged on one side of the movable block located in the movable groove. The connection structure includes a transmission shaft, and the transmission shaft is arranged on the lower side of the mounting plate. A connecting cavity connected to the bottom of the movable groove is opened in the mounting plate. The upper end of the transmission shaft movably passes through the connecting cavity, and the outer surface of one end of the transmission shaft located in the connecting cavity is sleeved with a second gear, and the lower end of the ball screw is sleeved with a first gear meshing with the second gear. The lower end of the transmission shaft movably passes through the filter plate and is connected to the fan blade transmission structure.

[0006] The present invention is further configured as follows: a U-shaped hinge joint is provided on the upper surface of the movable block near the clearing rod, the lower end of the clearing rod is hinged to the U-shaped hinge joint, an arc-shaped slide groove is provided on the surface of the mounting plate on one side facing the clearing rod, the arc-shaped slide groove is inclined in a Z shape, a movable slider is provided on the outer surface of the clearing rod near the arc-shaped slide groove, one side of the movable slider extends into the arc-shaped slide groove, and slides in the arc-shaped slide groove.

[0007] The present invention is further configured as follows: the fan blade transmission structure includes a gear housing, the gear housing is installed on the inner wall of the irrigation pipe, a first rotating shaft is arranged in the gear housing, one end of the first rotating shaft rotates and passes through the outer surface of the gear housing, the end of the first rotating shaft located outside the gear housing is sleeved with fan blades, a first bevel gear is sleeved on the outer surface of the end of the first rotating shaft located inside the gear housing, the upper side of the first bevel gear is meshedly connected with a second bevel gear, the upper surface of the second bevel gear is arranged with a second rotating shaft, and the upper end of the second rotating shaft rotates and passes through the upper surface of the gear housing.

[0008] The present invention is further configured as follows: an extension groove is provided on the upper surface of the second rotating shaft, the lower end of the transmission shaft extends into the extension groove and slides in the extension groove, transmission slide grooves are provided on the inner walls on both sides opposite to each other, a transmission slide block is provided on the outer surface of the transmission shaft close to the transmission slide groove, and the other side of the transmission slide block extends into the transmission slide groove and slides in the transmission slide groove.

[0009] The present invention is further configured as follows: the connection structure also includes an arc plate, the arc plate is arranged on a side of the mounting plate away from the mounting point, the concave surface of the arc plate faces the irrigation pipe, an L-shaped rod is arranged on the lower surface of the arc plate, a rotating ring is rotatably sleeved on the outer surface of the transmission shaft, and one end of the L-shaped rod cross bar is connected to the outer surface of the rotating ring.

[0010] The present invention is further configured as follows: a limiting groove is provided on the surface of the mounting plate close to the arc plate, a limiting slider is provided on the surface of the arc plate close to the limiting groove, the other side of the limiting slider extends into the limiting groove and slides in the limiting groove, a limiting slide rod is provided between the upper and lower inner walls of the limiting groove, the limiting slider is slidably sleeved on the outer surface of the limiting slide rod, and a spring movably sleeved on the outer surface of the limiting slide rod is provided between the upper surface of the limiting slider and the top wall of the limiting groove.

[0011] The present invention is further configured as follows: the cleaning structure includes a central sleeve, which is embedded in the center of the filter plate and movably sleeved on the outer surface of the transmission shaft; the lower surface of the central sleeve is provided with a rotating ring which is also movably sleeved on the outer surface of the transmission shaft; the outer surface of the rotating ring is provided with a rotating plate; the upper surface of the rotating plate is provided with a cleaning brush which contacts the lower surface of the filter plate.

[0012] The present invention is further configured as follows: a built-in cavity is opened in the rotating ring, the transmission shaft is located at the axis center of the built-in cavity, an inner gear ring is inlaid on the top inner wall of the built-in cavity, and the transmission shaft is located on the outer surface of the built-in cavity and is provided with transmission teeth meshing with the inner gear ring.

[0013] The present invention is further configured as follows: a T-shaped ring groove is provided on the lower surface of the center sleeve, the vertical cross-section of the T-shaped ring groove is T-shaped, a plurality of T-shaped sliders extending into and sliding in the T-shaped ring groove are provided on the upper surface of the rotating ring, and a plurality of pulleys in contact with the inner wall of the T-shaped ring groove are provided on the upper and lower side surfaces of the cross plate of the T-shaped slider.

[0014] The advantages of the present invention are: First, the present invention provides a clearing structure. When the drip outlet of the drip irrigation head is blocked by the buried layer of soil, the clearing rod can clear the material blocking the drip irrigation head, effectively ensuring the smooth flow of water inside the drip irrigation head. No human or electronic component monitoring is required, which greatly guarantees the clearing efficiency of the drip irrigation head and the effect of the drip irrigation head on irrigating plants.

[0015] Secondly, the present invention provides an arc-shaped slide groove and a movable slider. When the clearing rod moves upward or downward with the movable block, the movable slider slides in the arc-shaped slide groove. Since the arc-shaped slide groove is inclined in a Z shape, the movable slider can drive the clearing rod to swing back and forth during the sliding process, thereby further improving the clearing effect of the clearing rod on the blocked material and accelerating the speed and efficiency of the dripper clearing.

[0016] Thirdly, the present invention can drive the blockage clearing structure and the cleaning structure to operate separately by setting a fan blade transmission structure, and does not require additional electric components to drive the displacement of the blockage clearing rod. The conversion of natural resources is achieved through a simple mechanical structure, which makes the structure have an endless effect and has good environmental significance and value.

[0017] Fourthly, the present invention can automatically clear the drip irrigation head when it is blocked by setting a connection structure, and automatically control the cleaning brush to clean the filter plate after the drip irrigation head is used normally, so that the brush cleaning structure and the clearing structure at the bottom of the filter will not run at the same time, reducing the power consumption of the fan blade transmission structure, avoiding as much as possible that the water flow driving force cannot drive the brush cleaning structure and the clearing structure at the same time, and ensuring the stability and smoothness of the operation of a single mechanism.

[0018] Fifth, the present invention can simultaneously drive the cleaning brush to clean the lower surface of the filter plate through the rotation of the rotating ring, thereby avoiding the problem of excessive impurities adhering to the bottom of the filter plate during long-term use, causing clogging of the filter plate mesh, and ensuring the drip irrigation effect of the drip irrigation head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of a drip irrigation pipeline for shallow buried micro-irrigation of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the irrigation pipe and the drip irrigation head of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 It is a side plan view of the internal structure of the movable groove of the present invention; Figure 5 for Figure 2 Enlarged view of point B in the middle; Figure 6 for Figure 2 Enlarged view of point C in the middle; Figure 7 for Figure 2 Enlarged view of point D in the middle.

[0020] In the figure: 1, irrigation pipe; 2, drip irrigation head; 3, filter plate; 31, center sleeve; 32, rotating ring; 33, rotating plate; 34, cleaning brush; 35, built-in cavity; 36, transmission gear; 37, inner gear ring; 38, T-shaped ring groove; 39, T-shaped slider; 310, pulley; 4. Mounting plate; 5. Clearing structure; 51. Clearing rod; 52. Movable groove; 53. Movable block; 54. U-shaped hinge joint; 55. Ball screw; 56. Arc slide groove; 57. Movable slide block; 58. First gear; 6. connection structure; 61. arc plate; 62. limiting slide groove; 63. limiting slide rod; 64. limiting slide block; 65. spring; 66. transmission shaft; 67. L-shaped rod; 68. rotating ring; 69. connecting cavity; 610. second gear; 7. Fan blade transmission structure; 71. Gear housing; 72. First rotating shaft; 73. Fan blade; 74. First bevel gear; 75. Second bevel gear; 76. Second rotating shaft; 77. Extension groove; 78. Transmission slide groove; 79. Transmission slider. DETAILED DESCRIPTION

[0021] See also Figure 1-7 , the present invention provides the following technical solutions: Specifically, it refers to a drip irrigation pipeline for shallow buried micro-irrigation, including an irrigation pipe 1 and a drip irrigation head 2 arranged on the irrigation pipe 1. The drip irrigation head 2 is connected to the inside of the irrigation pipe 1. When in use, it is connected to a supply device through one end of the irrigation pipe 1. Therefore, the supply device can transport irrigation water through the irrigation pipe 1, and finally flow into the planting soil from the drip irrigation head 2.

[0022] A filter plate 3 for filtering irrigation water is arranged on the inner wall of the drip irrigation head 2 close to the irrigation pipe 1, so that the filter plate 3 can prevent solid impurities in the irrigation pipe 1 from entering the drip irrigation head 2, causing the dripping port of the drip irrigation head 2 to be blocked, thereby ensuring the use effect of the drip irrigation head 2.

[0023] A mounting plate 4 is provided on the inner wall of the drip irrigation head 2, and a clearing structure 5 for clearing the drip outlet of the drip irrigation head 2 is provided on the mounting plate 4. The clearing structure 5 includes a clearing rod 51, which is arranged on a side of the mounting plate 4 away from the mounting point, and a movable groove 52 is provided on the surface of the mounting plate 4 close to the clearing rod 51. A movable block 53 is provided at the lower end of the clearing rod 51, and one side of the movable block 53 extends into the movable groove 52 and slides in the movable groove 52. The movable groove 52 is connected to the inner wall on both sides of the upper and lower sides by rotation. A ball screw 55 is connected, and a ball nut threadedly sleeved on the outer surface of the ball screw 55 is provided on one side of the movable block 53 located in the movable groove 52. Therefore, when the ball screw 55 rotates, the ball nut drives the movable block 53 to move up and down in the movable groove 52, and the clearing rod 51 moves synchronously with the movable block 53. In this way, when the drip outlet of the drip irrigation head 2 is blocked by the buried layer of soil, the clearing rod 51 can clear the material blocking the drip irrigation head 2, effectively ensuring the smooth flow of water inside the drip irrigation head 2.

[0024] A U-shaped hinge joint 54 is provided on the upper surface of the movable block 53 near the clearing rod 51, and the lower end of the clearing rod 51 is hinged to the U-shaped hinge joint 54. An arc-shaped slide groove 56 is opened on the side surface of the mounting plate 4 facing the clearing rod 51, and the arc-shaped slide groove 56 is inclined in a Z shape. A movable slider 57 is provided on the outer surface of the clearing rod 51 near the arc-shaped slide groove 56, and one side of the movable slider 57 extends into the arc-shaped slide groove 56 and slides in the arc-shaped slide groove 56. Therefore, when the clearing rod 51 moves upward or downward with the movable block 53, the movable slider 57 slides in the arc-shaped slide groove 56. Since the arc-shaped slide groove 56 is inclined in a Z shape, the movable slider 57 can drive the clearing rod 51 to swing back and forth during the sliding process, thereby further improving the clearing effect of the clearing rod 51 on the blockage material, and accelerating the speed and efficiency of dripper clearing.

[0025] A fan blade transmission structure 7 is provided in the irrigation pipe 1. The fan blade transmission structure 7 includes a gear housing 71. The gear housing 71 is installed on the inner wall of the irrigation pipe 1. A first rotating shaft 72 is provided in the gear housing 71. One end of the first rotating shaft 72 rotates and passes through the outer surface of the gear housing 71. A fan blade 73 is sleeved on the end of the first rotating shaft 72 located outside the gear housing 71. A first bevel gear 74 is sleeved on the outer surface of the end of the first rotating shaft 72 located in the gear housing 71. The upper side of the first bevel gear 74 is meshed and connected with a second bevel gear 75. A second rotating shaft 76 is provided on the upper surface of the second bevel gear 75. The upper end of the second rotating shaft 76 rotates and passes through the upper surface of the gear housing 71. When irrigation water is transported in the irrigation pipe 1, the water flow will form a thrust on the blades of the fan blade 73, so that the fan blade 73 drives the first rotating shaft 72 to rotate. Therefore, the second rotating shaft 76 rotates synchronously under the action of the first bevel gear 74 driving the second bevel gear 75.

[0026] The lower side of the mounting plate 4 is provided with a connection structure 6 connecting the clearing structure 5 and the blade transmission structure 7. The connection structure 6 includes a transmission shaft 66. The transmission shaft 66 is arranged on the lower side of the mounting plate 4. A connecting cavity 69 connected to the bottom of the movable groove 52 is opened in the mounting plate 4. The upper end of the transmission shaft 66 movably penetrates into the connecting cavity 59. The outer surface of one end of the transmission shaft 66 located in the connecting cavity 59 is sleeved with a second gear 610. The lower end of the ball screw 55 is sleeved with a first gear 58 meshingly connected with the second gear 610. The lower end of the transmission shaft 66 movably penetrates into the connecting cavity 59. It passes through the filter plate 3 and is connected to the upper end of the second rotating shaft 76. Therefore, when the second rotating shaft 76 rotates, it can synchronously drive the transmission shaft 66 to rotate. The first gear 58 rotates synchronously under the transmission of the second gear 610, so that the ball screw 55 rotates synchronously, thereby controlling the up and down displacement of the clearing rod 51. The above structure does not require additional electric components to drive the clearing rod 51 to move. The conversion of natural resources is achieved through a simple mechanical structure, which makes the structure have an endless effect and has good environmental protection significance and value.

[0027] A curved plate 61 is provided on the surface of the side of the mounting plate 4 away from the mounting point, and the concave surface of the curved plate 61 faces the irrigation pipe 1. Therefore, when the water in the irrigation pipe 1 enters the drip irrigation head 2 and flows out of the drip irrigation head 2, the water flow will form a thrust on the concave surface of the curved plate 61, so that the curved plate 61 is displaced toward the side close to the clearing rod 51. An L-shaped rod 67 is provided on the lower surface of the curved plate 61. A rotating ring 68 is rotatably sleeved on the outer surface of the transmission shaft 66. One end of the cross bar of the L-shaped rod 67 is connected to the outer surface of the rotating ring 68. A limiting groove 62 is provided on the surface of the mounting plate 4 close to the curved plate 61. The curved plate 61 is close to the A limiting slider 64 is provided on the surface near the limiting chute 62, and the other side of the limiting slider 64 extends into the limiting chute 62 and slides in the limiting chute 62. A limiting slide bar 63 is provided between the upper and lower inner walls of the limiting chute 62. The limiting slider 64 is slidably sleeved on the outer surface of the limiting slide bar 63. A spring 65 movably sleeved on the outer surface of the limiting slide bar 63 is provided between the upper surface of the limiting slider 64 and the top wall of the limiting chute 62. When the arc plate 61 is not subjected to the thrust of the water flow, the spring 65 will form a thrust on the limiting slider 64, so that the initial position of the arc plate 61 is close to the irrigation pipe 1. On one side, when the arc plate 61 moves upward driven by the water flow, the spring 65 is stressed and contracts, and the L-shaped rod 67 synchronously drives the transmission shaft 66 to move upward, so the transmission shaft 66 pushes the second gear 610 to move upward, so that the first gear 58 and the second gear 610 are disengaged, so that the transmission shaft 66 cannot drive the ball screw 55 to rotate. When the drip nozzle 2 is blocked, the water flow in the drip nozzle 2 is reduced or even disappears, so the water flow thrust on the arc plate 61 is reduced or disappears, so that the arc plate 61 is pushed downward by the spring 65, so that the transmission shaft 66 is synchronously moved downward Therefore, the transmission shaft 66 drives the second gear 610 to mesh with the first gear 58. Since a plurality of drip irrigation heads 2 are arranged on the irrigation pipe 1, when one of the drip irrigation heads 2 is blocked, the flow of irrigation water in the irrigation pipe 1 will not be affected. Therefore, the fan blade transmission structure 7 can continuously drive the transmission shaft 66 to rotate, thereby controlling the clearing structure 5 to clear the drip irrigation head 2. The above structure can automatically clear the drip irrigation head 2 when it is blocked, without the need for manual or electronic component monitoring, which greatly ensures the clearing efficiency of the drip irrigation head 2 and the effect of the drip irrigation head 2 on plant irrigation.

[0028] An extension groove 77 is provided on the upper surface of the second rotating shaft 76, and the lower end of the transmission shaft 66 extends into the extension groove 77 and slides in the extension groove 77. Transmission grooves 78 are provided on the inner walls on both sides of the extension groove 77. A transmission slider 79 is provided on the outer surface of the transmission shaft 66 close to the transmission groove 78, and the other side of the transmission slider 79 extends into the transmission groove 78 and slides in the transmission groove 78. Therefore, when the transmission shaft 66 moves upward or downward, the transmission slider 79 slides in the transmission groove 78. When the second rotating shaft 76 rotates, the transmission shaft 66 is restricted by the transmission slider 79, and the second rotating shaft 76 can drive the transmission shaft 66 to rotate. Therefore, regardless of the upward and downward displacement of the transmission shaft 66, the second rotating shaft 76 can drive the transmission shaft 66 to rotate.

[0029] A central sleeve 31 movably mounted on the outer surface of the transmission shaft 66 is inlaid at the center of the filter plate 3. A rotating ring 32 movably mounted on the outer surface of the transmission shaft 66 is provided on the lower surface of the central sleeve 31. A rotating plate 33 is provided on the outer surface of the rotating ring 32. A cleaning brush 34 in contact with the lower surface of the filter plate 3 is provided on the upper surface of the rotating plate 33. Therefore, when the rotating ring 32 rotates, the cleaning brush 34 can be synchronously driven to clean the lower surface of the filter plate 3, thereby avoiding the problem of excessive impurities adhering to the bottom of the filter plate 3 during long-term use, causing the mesh of the filter plate 3 to be blocked, thereby ensuring the drip irrigation effect of the drip irrigation head 2.

[0030] An internal cavity 35 is provided in the rotating ring 32, and a transmission shaft 66 is located at the axis of the internal cavity 35. An internal gear ring 37 is inlaid on the top inner wall of the internal cavity 35. A transmission tooth 36 meshing with the internal gear ring 37 is provided on the outer surface of the transmission shaft 66 located at the internal cavity 35. When the transmission shaft 66 moves upward, the transmission tooth 36 moves upward and meshes with the internal gear ring 37. Therefore, when the transmission shaft 66 rotates, the transmission tooth 36 can synchronously drive the rotating ring 32 to rotate, thereby achieving the purpose of controlling the cleaning brush 34 to clean the bottom of the filter plate 3. When the transmission shaft 66 moves downward, the transmission tooth 36 moves upward and meshes with the internal gear ring 37. The movable teeth 36 are displaced downward and disengaged from the inner gear ring 37, thereby failing to transmit the rotation of the rotating ring 32. Through the above-mentioned setting of the connection structure 6, it can be known that the clearing structure 5 can be automatically controlled to operate after the drip irrigation head 2 is blocked. After the drip irrigation head 2 is used normally, the cleaning brush 34 is automatically controlled to clean the filter plate 3, so that the brush cleaning structure and the clearing structure 5 at the bottom of the filter screen 3 will not operate at the same time, thereby reducing the power consumption of the fan blade transmission structure 7, and avoiding as much as possible that the water flow driving force cannot drive the brush cleaning structure and the clearing structure 5 at the same time, thereby ensuring the stability and smoothness of the operation of a single mechanism.

[0031] A T-shaped ring groove 38 is provided on the lower surface of the center sleeve 31, and the vertical section of the T-shaped ring groove 38 is T-shaped. The upper surface of the rotating ring 32 is provided with a plurality of T-shaped sliders 39 extending into the T-shaped ring groove 38 and sliding in the T-shaped ring groove 38. The upper and lower side surfaces of the cross plate of the T-shaped slider 39 are provided with a plurality of pulleys 310 in contact with the inner wall of the T-shaped ring groove 38. Therefore, the pulleys 310 support the T-shaped slider 39, thereby ensuring the smoothness of the rotation of the rotating ring 32. At the same time, due to the provision of the T-shaped slider 39 and the T-shaped ring groove 38, a limiting effect can be formed on the rotating ring 32, thereby avoiding the separation of the rotating ring 32 and the center sleeve 31 as much as possible.

[0032] The working principle of the drip irrigation pipeline for shallow buried micro-irrigation provided by the present invention is as follows: First, when the irrigation water is transported in the irrigation pipeline 1, the water flows in the irrigation pipeline 1, and the water flows to form a thrust on the blades 73, so that the blades 73 drive the first rotating shaft 72 to rotate, so the second rotating shaft 76 rotates synchronously under the action of the first bevel gear 74 driving the second bevel gear 75; Step 2: When the irrigation water in the irrigation pipe 1 flows out through the drip irrigation head 2, the water flow will form a thrust on the concave surface of the arc plate 61, so that the arc plate 61 is displaced to the side close to the clearing rod 51, the spring 65 is stressed and contracts, and the L-shaped rod 67 synchronously drives the transmission shaft 66 to move upward, so that the transmission shaft 66 pushes the second gear 610 to move upward, so that the first gear 58 and the second gear 610 are disengaged, so that the transmission shaft 66 cannot drive the ball screw 55 to rotate, but the transmission teeth 36 are displaced upward and meshed with the inner gear ring 37. Therefore, when the transmission shaft 66 rotates, the transmission teeth 36 can synchronously drive the rotating ring 32 to rotate, thereby achieving the purpose of controlling the cleaning brush 34 to clean the bottom of the filter plate 3; Step 3: When the drip outlet of the drip irrigation head 2 is blocked, the water flow in the drip irrigation head 2 is reduced or even disappears, so the water flow thrust on the arc plate 61 is reduced or disappears, so that the arc plate 61 moves downward under the push of the spring 65, so that the transmission shaft 66 moves downward synchronously, so that the transmission shaft 66 drives the second gear 610 to mesh with the first gear 58, so that the ball screw 55 rotates synchronously, drives the clearing rod 51 to move up and down, and clears the blockage of the drip irrigation head 2.

Claims

1. A drip irrigation pipeline for shallow buried micro-irrigation, comprising an irrigation pipeline (1) and a drip irrigation head (2) arranged on the irrigation pipeline (1), the drip irrigation head (2) being connected to the inside of the irrigation pipeline (1), characterized in that: The drip irrigation head (2) is provided with a filter plate (3) for filtering irrigation water on the inner wall near the irrigation pipe (1), and a cleaning structure for cleaning the bottom thereof is provided on the filter plate (3); a mounting plate (4) is provided on the inner wall of the drip irrigation head (2), and a clearing structure (5) for clearing blockages at the drip outlet of the drip irrigation head (2) is provided on the mounting plate (4); a fan blade transmission structure (7) is provided in the irrigation pipe (1), and a connection structure (6) for controlling the connection between the clearing structure and the clearing structure (5) and the fan blade transmission structure (7) is provided on the lower side of the mounting plate (4); The blockage clearing structure (5) comprises a blockage clearing rod (51), the blockage clearing rod (51) being arranged on a side of the mounting plate (4) away from the mounting point, a movable groove (52) being provided on a surface of the mounting plate (4) close to the blockage clearing rod (51), a movable block (53) being provided at the lower end of the blockage clearing rod (51), one side of the movable block (53) extending into the movable groove (52) and sliding in the movable groove (52), a ball screw (55) being rotatably connected between the inner walls on both sides of the movable groove (52), and a ball nut being threadedly sleeved on the outer surface of the ball screw (55) being provided on one side of the movable block (53) located in the movable groove (52); The connection structure (6) comprises a transmission shaft (66), the transmission shaft (66) being arranged on the lower side of the mounting plate (4), a connecting cavity (69) being provided in the mounting plate (4) and communicating with the bottom of the movable groove (52), the upper end of the transmission shaft (66) being movably inserted into the connecting cavity (59), the outer surface of one end of the transmission shaft (66) located in the connecting cavity (59) being sleeved with a second gear (610), the lower end of the ball screw (55) being sleeved with a first gear (58) meshingly connected with the second gear (610), the lower end of the transmission shaft (66) being movably inserted into the filter plate (3) and connected to the fan blade transmission structure (7).

2. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 1, characterized in that: The movable block (53) is provided with a U-shaped hinge joint (54) on the upper surface close to the clearing rod (51), and the lower end of the clearing rod (51) is hinged to the U-shaped hinge joint (54). The mounting plate (4) is provided with an arc-shaped slide groove (56) on the surface of one side facing the clearing rod (51), and the arc-shaped slide groove (56) is in an inclined Z shape. A movable sliding block (57) is provided on the outer surface of the clearing rod (51) close to the arc-shaped slide groove (56), and one side of the movable sliding block (57) extends into the arc-shaped slide groove (56) and slides in the arc-shaped slide groove (56).

3. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 1 or 2, characterized in that: The fan blade transmission structure (7) comprises a gear housing (71), the gear housing (71) being mounted on the inner wall of the irrigation pipe (1), a first rotating shaft (72) being arranged inside the gear housing (71), one end of the first rotating shaft (72) being rotatably penetrated through the outer surface of the gear housing (71), a fan blade (73) being sleeved on the end of the first rotating shaft (72) located outside the gear housing (71), a first bevel gear (74) being sleeved on the outer surface of the end of the first rotating shaft (72) located inside the gear housing (71), a second bevel gear (75) being meshedly connected to the upper side of the first bevel gear (74), a second rotating shaft (76) being arranged on the upper surface of the second bevel gear (75), the upper end of the second rotating shaft (76) being rotatably penetrated through the upper surface of the gear housing (71).

4. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 3, characterized in that: An extension groove (77) is formed on the upper surface of the second rotating shaft (76), and the lower end of the transmission shaft (66) extends into the extension groove (77) and slides in the extension groove (77). Transmission slide grooves (78) are formed on the inner walls on two opposite sides of the extension groove (77). A transmission slide block (79) is provided on the outer surface of the transmission shaft (66) near the transmission slide groove (78), and the other side of the transmission slide block (79) extends into the transmission slide groove (78) and slides in the transmission slide groove (78).

5. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 4, characterized in that: The connection structure (6) further comprises an arc-shaped plate (61), the arc-shaped plate (61) being arranged on a side of the mounting plate (4) away from the mounting point, the concave surface of the arc-shaped plate (61) facing the irrigation pipe (1), an L-shaped rod (67) being arranged on the lower surface of the arc-shaped plate (61), a rotating ring (68) being rotatably sleeved on the outer surface of the transmission shaft (66), and one end of a cross bar of the L-shaped rod (67) being connected to the outer surface of the rotating ring (68).

6. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 5, characterized in that: A limiting groove (62) is provided on the surface of the mounting plate (4) close to the arc plate (61), and a limiting slider (64) is provided on the surface of the arc plate (61) close to the limiting groove (62). The other side of the limiting slider (64) extends into the limiting groove (62) and slides in the limiting groove (62). A limiting slide bar (63) is provided between the upper and lower inner walls of the limiting groove (62). The limiting slider (64) is slidably sleeved on the outer surface of the limiting slider (63). A spring (65) movably sleeved on the outer surface of the limiting slider (63) is provided between the upper surface of the limiting slider (64) and the top wall of the limiting groove (62).

7. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 6, characterized in that: The cleaning structure comprises a central sleeve (31), which is embedded in the center of the filter plate (3) and movably sleeved on the outer surface of the transmission shaft (66); a rotating ring (32) movably sleeved on the outer surface of the transmission shaft (66) is provided on the lower surface of the central sleeve (31); a rotating plate (33) is provided on the outer surface of the rotating ring (32); and a cleaning brush (34) in contact with the lower surface of the filter plate (3) is provided on the upper surface of the rotating plate (33).

8. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 7, characterized in that: The rotating ring (32) has an internal cavity (35) formed therein, a transmission shaft (66) being located at the axis of the internal cavity (35), an internal gear ring (37) being inlaid on the top inner wall of the internal cavity (35), and transmission teeth (36) meshingly connected to the internal gear ring (37) being provided on the outer surface of the transmission shaft (66) located in the internal cavity (35).

9. A drip irrigation pipeline for shallow buried micro-irrigation according to claim 8, characterized in that: The lower surface of the central sleeve (31) is provided with a T-shaped ring groove (38), the vertical cross section of the T-shaped ring groove (38) is T-shaped, the upper surface of the rotating ring (32) is provided with a plurality of T-shaped sliders (39) extending into the T-shaped ring groove (38) and sliding in the T-shaped ring groove (38), and the upper and lower side surfaces of the cross plate of the T-shaped slider (39) are provided with a plurality of pulleys (310) contacting the inner wall of the T-shaped ring groove (38).

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