A drainage irrigation device for water conservancy projects

Abstract

The present invention relates to the field of drainage irrigation technology, and discloses a drainage irrigation device for water conservancy projects, including a water reservoir, a sealed barrel for pre-storing liquid is installed inside the water reservoir, a water inlet pipe inserted into the water reservoir is installed on one side of the sealed barrel, a water outlet pipe is installed on the other side of the sealed barrel, an irrigation nozzle is installed at the end of the water outlet pipe, a blocking mechanism is installed inside the water outlet pipe, a blocking block for blocking the inside of the water outlet pipe is installed inside the blocking mechanism, a first support plate and a second support plate are installed on the side of the water reservoir, and a driving cylinder for controlling the movement of the blocking mechanism is installed on the first support plate. The blocking blocks can be gradually brought together to reduce the amount of water and prevent over-irrigation; in arid areas, the blocking blocks can be gradually opened to increase the amount of water and avoid waste as much as possible; through the rotation of the first circular plate, irrigation of land with different humidity is achieved, and the size of the water flow is reasonably used for land under different environments, further improving the irrigation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of drainage irrigation, in particular to a drainage irrigation device for water conservancy projects. Background Art

[0002] The irrigation devices used in water conservancy projects include ditches, pipes, sprinkler irrigation, drip irrigation and infiltration irrigation systems, which effectively distribute and manage water resources in different ways, thereby improving agricultural production efficiency. Ditch and pipe systems are suitable for irrigation needs of different scales, while sprinkler and drip irrigation systems can accurately control the amount of water to adapt to various terrains and crop needs. In addition, reservoirs and water storage tanks are used to store and regulate water sources to ensure a stable water supply even during droughts.

[0003] At present, the existing irrigation method is to put the connecting pipe into the water, and then put the other end of the connecting pipe into the land, and use a siphon method for drainage. When the land does not need to be drained, the connecting pipe needs to be taken out. Not only that, since the land is large, multiple connecting pipes are required for drainage. It is relatively troublesome to operate the connecting pipes over and over again; therefore, it does not meet the existing needs. In this regard, we propose a drainage irrigation device for water conservancy projects. Summary of the invention

[0004] The present invention provides a drainage irrigation device for water conservancy projects, which has the beneficial effects of regulating water flow and improving irrigation efficiency. It solves the problem that the existing irrigation method mentioned in the above background technology is to put a connecting pipe into water, and then put the other end of the connecting pipe into the land, and use a siphon method to drain. When there is no need to drain the land, the connecting pipe needs to be taken out. Moreover, since the land is large, multiple connecting pipes are required for drainage. It is relatively troublesome to operate the connecting pipes over and over again.

[0005] The present invention provides the following technical solution: a drainage irrigation device for a water conservancy project, comprising a water reservoir, a sealed barrel for pre-storing liquid installed inside the water reservoir, a water inlet pipe inserted into the water reservoir installed on one side of the sealed barrel, an outlet pipe installed on the other side of the sealed barrel, an irrigation nozzle installed on the end of the outlet pipe, a blocking mechanism installed inside the outlet pipe, a blocking block for blocking the inside of the outlet pipe installed inside the blocking mechanism, a first support plate and a second support plate installed on the side of the water reservoir, and a driving cylinder for controlling the movement of the blocking mechanism installed on the first support plate.

[0006] As an optional solution for a drainage irrigation device for a water conservancy project described in the present invention, a water inlet for irrigation is installed on the upper side of the sealed barrel, the height of the water outlet pipe is lower than the horizontal plane of the irrigation water, a first support seat is installed on the upper side of the first support plate, and a second support seat is installed on the upper side of the second support plate.

[0007] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, the blocking mechanism includes a first circular plate and a second circular plate installed inside the outlet pipe, the first circular plate is rotatably engaged inside the outlet pipe, and a plurality of blocking blocks are movably installed between the first circular plate and the second circular plate, and outlets for water supply are provided on the surfaces of the first circular plate and the second circular plate.

[0008] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, wherein: a plurality of inclined grooves are provided on the surface of the first circular plate, and the inclined grooves are provided in a ring array on the surface of the first circular plate; a track groove is provided on the surface of the second circular plate; a sliding column is installed on the upper side of the blocking block, and a sliding block is installed on the bottom side of the blocking block; the sliding column is slidably matched with the inclined groove, and the sliding block is slidably matched with the track groove.

[0009] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, an arc groove is opened on the side of the outlet pipe, the first circular plate is rotatably engaged with the side of the arc groove, and the first circular plate and the arc groove are interference fit, and a tooth segment is installed on the side of the first circular plate.

[0010] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, wherein: a first pulley is rotatably installed on the side of the first support seat, a second pulley is rotatably installed on the side of the second support seat, a transmission belt is installed between the second pulley and the first pulley, and a connecting shaft is connected to the rotating shaft of the first pulley.

[0011] As an optional solution of the drainage irrigation device for water conservancy projects described in the present invention, wherein: a driving rack is installed at the movable end of the driving cylinder, a sliding groove is opened on the surface of the first support plate, the driving rack is slidably matched with the sliding groove, and a driving gear is installed on the surface of the connecting shaft, and the driving gear is meshed with the driving rack;

[0012] A bevel gear coaxially connected to the second pulley is installed on the side of the second support seat, and a tooth segment is installed on the side of the first circular plate, and the bevel gear is meshed with the tooth segment.

[0013] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, a driving gear is installed at the end of the connecting shaft, an inclined sliding seat is installed on the side of the first support seat, a pushing rack is slidably installed inside the inclined sliding seat, and the driving gear is meshed with the pushing rack.

[0014] As an optional solution of a drainage irrigation device for a water conservancy project described in the present invention, the irrigation nozzle includes an inclined tube and a movable tube hinged on the side of the inclined tube, a first corrugated tube is installed inside the movable tube and the inclined tube, and the first corrugated tube is communicated with the water outlet pipe.

[0015] As an optional solution for a drainage irrigation device for a water conservancy project described in the present invention, a sliding plate is installed on the upper side of the pushing rack, a sliding groove is installed inside the sliding plate, a sliding block is installed on the bottom side of the movable tube, the sliding block slides in cooperation with the sliding groove, and the middle part of the inclined tube is set as a corrugated section.

[0016] The present invention has the following beneficial effects:

[0017] 1. The drainage irrigation device for water conservancy projects cooperates with a sealing barrel, an inlet pipe and an outlet pipe. When the sealing block no longer blocks the outlet pipe, the liquid inside the sealing barrel will flow out through the outlet pipe. At the same time, after the liquid in the sealing barrel is discharged through the outlet pipe, the pressure inside the sealing barrel will be lower than the pressure of the liquid inside the reservoir. Therefore, the liquid inside the reservoir automatically flows through the inlet pipe to the inside of the sealing barrel, and the siphon effect is achieved in this reciprocating manner. When in use, it is only necessary to drive the cylinder to drive several sealing blocks to open, so that the liquid can flow out automatically. When the water flow no longer irrigates the ground, the driving cylinder is used to drive several sealing blocks to close, so that the liquid can be blocked, so that the irrigation of the ground is automated, energy consumption is reduced, and labor costs are reduced.

[0018] 2. The drainage irrigation device for water conservancy projects, during the operation of the driving cylinder, utilizes the cooperation between the first pulley, the second pulley and the transmission belt to drive the bevel gear to mesh with the tooth segment and rotate the first circular plate. During the rotation of the first circular plate, utilizes the cooperation of the sliding column, the blocking block, the inclined groove and the track groove to make several blocking blocks open by being close together, thereby losing the blockage of the water outlet pipe. Moreover, in the state where several blocking blocks are gradually opened, the gap between the blocking blocks gradually becomes larger, and the water outlet is no longer restricted, so the water output increases; in the process of the blocking blocks approaching each other, the water outlet is gradually blocked, so that the water output is reduced, so that during the irrigation process, irrigation can be carried out for different land environments. In areas with high soil moisture, the blocking blocks can gradually approach each other to reduce the amount of water and prevent over-irrigation; in arid areas, the blocking blocks can be gradually opened to increase the amount of water and avoid waste as much as possible; through the rotation of the first circular plate, irrigation of land with different humidity is achieved, and the size of the water flow is reasonably used for land under different environments, further improving the irrigation effect.

[0019] 3. The drainage irrigation device for water conservancy projects, by pushing the cooperation of the rack and the driving gear, makes the movable tube in a reciprocating swinging motion, thereby realizing the change of the distance of liquid injection, thereby realizing irrigation in different ranges. Moreover, during the water spraying process, due to the long range, the volatilization of water will be more than that of the short range. Therefore, while the movable tube is lifted, the cooperation of the transmission belt and the bevel gear is utilized to drive the first circular plate to rotate. During the rotation of the first circular plate, the sliding column slides from the middle section of the inclined groove to the other end. During the sliding of the sliding column, the blocking block on the bottom side is driven to move along the track groove, so that the gap between several blocking blocks gradually increases, so the water output increases, thereby reducing the possibility of uneven irrigation caused by water evaporation; moreover, while the movable tube is pulled down, several blocking blocks gradually approach to block the water outlet, thereby reducing the water output, minimizing the waste of excessive liquid, and further improving the irrigation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the figure.

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure at B in the figure.

[0023] Figure 4 It is a schematic diagram of the matching structure of the water reservoir and the irrigation nozzle of the present invention.

[0024] Figure 5 It is a schematic diagram of the movable tube moving tense structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the matching structure of the first circular plate and the second circular plate of the present invention.

[0026] Figure 7 It is a schematic diagram of the explosion structure of the second circular plate and the blocking block of the present invention.

[0027] Figure 8 It is a schematic diagram of the closed cross-section structure of the blocking block of the present invention.

[0028] Fig. 9 This is a schematic diagram of the structure in which the blocking blocks of the present invention are far away from each other.

[0029] Fig.10 It is a schematic diagram of the cooperation between the tooth segment and the arc groove of the present invention.

[0030] Fig.11 It is a schematic diagram of the driving rack pushing distance structure of the present invention.

[0031] In the figure: 110, water reservoir; 111, sealing barrel; 112, water inlet pipe; 113, water outlet pipe; 114, water inlet; 120, irrigation nozzle; 121, movable pipe; 122, inclined pipe; 123, first corrugated pipe; 130, blocking block; 131, first circular plate; 132, second circular plate; 133, water outlet; 134, inclined groove; 135, track groove; 136, sliding column; 137, sliding block; 140, arc groove; 141, tooth segment; 150, second support plate; 151 , first support seat; 152, first pulley; 153, second support seat; 154, second pulley; 155, transmission belt; 161, bevel gear; 170, connecting shaft; 171, driving gear; 180, inclined sliding seat; 181, pushing rack; 190, driving cylinder; 191, first support plate; 210, sliding plate; 211, sliding groove; 212, slider; 213, corrugated section; 220, driving rack; 221, sliding groove; 222, driving gear; 230, blocking mechanism. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1: This embodiment is intended to promote the solution of the existing irrigation method, which is to put the connecting pipe into the water, and then put the other end of the connecting pipe into the land, and use the siphon method to drain. When the land does not need to be drained, the connecting pipe needs to be taken out. Moreover, since the land is large, multiple connecting pipes are required for drainage. When the connecting pipes are operated again and again, it is relatively troublesome. Please refer to Figure 1-Figure 11 A drainage irrigation device for a water conservancy project comprises a water reservoir 110, a sealed barrel 111 for pre-storing liquid is installed inside the water reservoir 110, a water inlet pipe 112 inserted into the water reservoir 110 is installed on one side of the sealed barrel 111, a water outlet pipe 113 is installed on the other side of the sealed barrel 111, an irrigation nozzle 120 is installed at the end of the water outlet pipe 113, a blocking mechanism 230 is installed inside the water outlet pipe 113, a blocking block 130 for blocking the inside of the water outlet pipe 113 is installed inside the blocking mechanism 230, a first support plate 191 and a second support plate 150 are installed on the side of the water reservoir 110, and a driving cylinder 190 for controlling the movement of the blocking mechanism 230 is installed on the first support plate 191.

[0034] A water inlet 114 for irrigation is installed on the upper side of the sealing barrel 111, and the height of the water outlet pipe 113 is lower than the horizontal plane of the irrigation water. A first support seat 151 is installed on the upper side of the first support plate 191, and a second support seat 153 is installed on the upper side of the second support plate 150.

[0035] See Figure 1 , Figure 4 In a specific implementation, the sealed barrel 111 is installed on the upper side of the water reservoir 110, and a water inlet 114 with a sealing cover is installed on the upper side of the sealed barrel 111, so that the sealed barrel 111 becomes a sealed cavity. Moreover, the water inlet pipe 112 is inserted into the water reservoir 110, and the water outlet pipe 113 is sealed by the blocking block 130. When the blocking block 130 no longer blocks the water outlet pipe 113, the water flow inside the sealed barrel 111 irrigates the field by using the water outlet pipe 113 and the irrigation nozzle 120. At the same time, since the sealed barrel 11 After the liquid in the sealed barrel 111 is discharged through the outlet pipe 113, the pressure inside the sealed barrel 111 will be lower than the pressure of the liquid inside the water reservoir 110, so that the liquid automatically flows into the sealed barrel 111 through the water inlet pipe 112, and the siphon effect is achieved in this way. When in use, it is only necessary to drive the cylinder 190 to drive the plurality of blocking blocks 130 to open, so that the water can flow out automatically. When the ground is no longer irrigated, the water flow can be blocked by driving the cylinder to drive the plurality of blocking blocks 130 to close, so that the irrigation is automated and the labor cost is reduced.

[0036] In this embodiment: through the cooperation of the sealing barrel 111, the water inlet pipe 112 and the water outlet pipe 113, when the blocking block 130 no longer blocks the water outlet pipe 113, the liquid inside the sealing barrel 111 will pass through the water outlet pipe 113. At the same time, after the liquid in the sealing barrel 111 is discharged through the water outlet pipe 113, the pressure inside the sealing barrel 111 will be lower than the pressure of the liquid inside the water reservoir 110, so that the liquid inside the water reservoir 110 automatically flows through the water inlet pipe 112 to the inside of the sealing barrel 111, and the siphon effect is achieved in this reciprocating manner; when in use, it is only necessary to drive the cylinder to drive several blocking blocks 130 to open, so that the effect of automatic liquid outflow can be used. When the water flow no longer irrigates the ground, the driving cylinder 190 is used to drive several blocking blocks 130 to close to achieve the blocking of the liquid, so that the irrigation of the ground is automated, energy consumption is reduced, and labor costs are reduced.

[0037] Embodiment 2: This embodiment is intended to promote the solution of different water volumes required for different drying conditions of the land. However, the existing water outlet pipe 113 is relatively simple and the water volume is fixed, so it cannot cope with the problem of different land environments. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 11 A first pulley 152 is rotatably mounted on the side of the first support seat 151 , a second pulley 154 is rotatably mounted on the side of the second support seat 153 , a transmission belt 155 is installed between the second pulley 154 and the first pulley 152 , and a connecting shaft 170 is connected to the rotating shaft of the first pulley 152 .

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A driving rack 220 is installed at the movable end of the driving cylinder 190, a sliding groove 221 is opened on the surface of the first support plate 191, and the driving rack 220 slides with the sliding groove 221. A driving gear 222 is installed on the surface of the connecting shaft 170, and the driving gear 222 is meshed with the driving rack 220. A bevel gear 161 coaxially connected to the second pulley 154 is installed on the side of the second support seat 153.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 During specific implementation, the driving cylinder 190 drives the front driving rack 220 to move during its operation, and drives the gear 222 to mesh with it during its movement, so that the driving gear 222 rotates during the meshing process. Since the driving gear 222 is installed on the surface of the connecting shaft 170, and the connecting shaft 170 is coaxially arranged with the first pulley 152, during the rotation of the first pulley 152, the cooperation of the transmission belt 155 and the second pulley 154 is utilized to make the bevel gear 161 rotate.

[0040] See Figure 6 , Figure 7 , Figure 8 and Fig. 9 The blocking mechanism 230 includes a first circular plate 131 and a second circular plate 132 installed inside the water outlet pipe 113. The first circular plate 131 is rotatably fitted inside the water outlet pipe 113. A plurality of blocking blocks 130 are movably installed between the first circular plate 131 and the second circular plate 132. The surfaces of the first circular plate 131 and the second circular plate 132 are both provided with water outlets 133 for water circulation.

[0041] See Figure 6 , Figure 7 , Figure 8 and Fig. 9 A plurality of inclined grooves 134 are provided on the surface of the first circular plate 131 , and the inclined grooves 134 are provided in a ring array on the surface of the first circular plate 131 . A track groove 135 is provided on the surface of the second circular plate 132 . A sliding column 136 is installed on the upper side of the blocking block 130 , and a sliding block 137 is installed on the bottom side of the blocking block 130 . The sliding column 136 slidably cooperates with the inclined groove 134 , and the sliding block 137 slidably cooperates with the track groove 135 .

[0042] See Fig.10 An arc groove 140 is opened on the side of the water outlet pipe 113, the first circular plate 131 is rotatably fitted on the side of the arc groove 140, and the first circular plate 131 and the arc groove 140 are interference fit, and a tooth segment 141 is installed on the side of the first circular plate 131; a tooth segment 141 is installed on the side of the first circular plate 131, and the bevel gear 161 is meshed with the tooth segment 141.

[0043] In a specific implementation, during the rotation of the bevel gear 161, the bevel gear 161 is meshed with the tooth segment 141, so that the tooth segment 141 is used to drive the first circular plate 131 to rotate. During the rotation of the first circular plate 131, the sliding block 137 installed on the bottom side of the blocking block 130 cooperates with the track groove 135, so that the track groove 135 guides the moving track of the blocking block 130. At the same time, the sliding column 136 installed on the upper side of the blocking block 130 will slide from one end of the inclined groove 134 to the other end, so that Several blocking blocks 130 are opened and closed, thereby controlling the flow rate of the liquid; during the rotation of the first circular plate 131, several blocking blocks 130 are opened by being close together, and the blockage of the water outlet pipe 113 is lost. Moreover, as the gap between the blocking blocks 130 gradually increases, the water outlet 133 is no longer restricted, so the water output increases. In the process of the blocking blocks 130 moving closer together, the water outlet 133 is gradually blocked, so that the water output is reduced, so that during the irrigation process, irrigation can be carried out according to different land environments.

[0044] In this embodiment: during the operation of the driving cylinder, the first pulley 152, the second pulley 154 and the transmission belt 155 are used to drive the bevel gear 161 to mesh with the tooth segment 141 and rotate the first circular plate 131. During the rotation of the first circular plate 131, the sliding column 136, the blocking block 130, the inclined groove 134 and the track groove 135 are used to make a plurality of blocking blocks 130 open by closing together, thereby losing the blockage of the water outlet pipe 113. Moreover, when the plurality of blocking blocks 130 are gradually opened, the gaps between the blocking blocks 130 gradually increase, and the water outlet 113 is no longer blocked. 33 is restricted, so the water output becomes larger; in the process of the blocking blocks 130 moving closer together, the water outlet 133 is gradually blocked, so that the water output is reduced, so that during the irrigation process, irrigation can be carried out according to different land environments. In areas with high soil moisture, the blocking blocks 130 can be gradually moved closer to reduce the amount of water and prevent over-irrigation; in arid areas, the blocking blocks 130 can be gradually opened to increase the amount of water and avoid waste as much as possible; through the rotation of the first circular plate 131, irrigation of land with different humidity is achieved, and the size of the water flow is reasonably used for land under different environments, further improving the irrigation effect.

[0045] Embodiment 3: This embodiment is intended to promote the solution of irrigation of land at different distances, so the spray range of the liquid also varies in distance. When irrigating land farther away, the liquid stays in the air for a longer time, so the liquid evaporates more, thus affecting the irrigation efficiency. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 11 A driving gear 171 is installed at the end of the connecting shaft 170, an inclined sliding seat 180 is installed on the side of the first supporting seat 151, and a pushing rack 181 is slidably installed inside the inclined sliding seat 180, and the driving gear 171 is meshed with the pushing rack 181.

[0046] The irrigation nozzle 120 includes an inclined tube 122 and a movable tube 121 hinged on the side of the inclined tube 122, a first corrugated tube 123 is installed inside the movable tube 121 and the inclined tube 122, the first corrugated tube 123 is communicated with the water outlet pipe 113, a sliding plate 210 is installed on the upper side of the push rack 181, a sliding groove 211 is installed inside the sliding plate 210, a slider 212 is installed on the bottom side of the movable tube 121, the slider 212 is slidably matched with the sliding groove 211, and the middle part of the inclined tube 122 is set as a corrugated section 213.

[0047] See Figure 1 , Figure 2 and Figure 5In a specific implementation, during the operation of the driving cylinder 190, the driving gear 222 and the driving rack 220 are used to drive the connecting shaft 170 to rotate, so that the driving gear 171 on the surface of the connecting shaft 170 rotates. During its rotation, the driving rack 181 is meshed with the pushing rack 181 to make the pushing rack 181 reciprocate on the inclined sliding seat 180. When the pushing rack 181 moves upward, the movable pipe 121 is lifted, and the water outlet of the movable pipe 121 is away from the height of the ground. Therefore, after the water flow is sprayed out of the pipe, it can fly in the air for a longer time, and the land in the distance can be irrigated; when the pushing rack 181 slides downward, the water outlet of the movable pipe 121 is driven to move downward, so that the water outlet is close to the height of the ground, so that the distance of the water flow spraying will be shortened accordingly, and the land in a closer range can be irrigated. By repeatedly pushing the rack 181 to slide up and down, the water outlet of the movable pipe 121 can be irrigated at different heights, thereby realizing uniform irrigation of land in different ranges.

[0048] Moreover, during the water spraying process, due to the long range, the volatilization of water will be greater than that of a short range. Therefore, while the movable tube 121 is lifted, the transmission belt 155 and the bevel gear 161 cooperate to drive the first circular plate 131 to rotate by driving the tooth segment 141. During the rotation of the first circular plate 131, the sliding block 137 installed on the bottom side of the blocking block 130 cooperates with the track groove 135, so that the track groove 135 guides the moving track of the blocking block 130. At the same time, the sliding column 136 installed on the upper side of the blocking block 130 will slide from one end of the inclined groove 134 to the other end, so that the gap between several blocking blocks 130 gradually increases, so the water output increases, thereby reducing the possibility of uneven irrigation caused by water evaporation; moreover, while the movable tube 121 is pulled down, several blocking blocks gradually approach to block the water outlet 133, thereby reducing the water output and minimizing the waste of excessive liquid.

[0049] It should be noted that see Fig.11 When the end of the driving rack 220 reaches point A, there are gaps between the blocking blocks 130. When the end of the driving rack 220 reaches point B, the gaps between the blocking blocks 130 are larger, but they still block the water outlet 133. When the end of the driving rack 220 reaches point C, the blocking blocks 130 are spread out and lose the restriction on the water outlet 133.

[0050] In this embodiment: by pushing the rack 181 and the driving gear 171, the movable tube 121 is in a reciprocating swinging motion, so that the distance of the liquid spray is changed, so as to realize irrigation in different ranges. In addition, during the water spraying process, due to the long range, the volatilization of the water volume is more than that of the short range. Therefore, while the movable tube 121 is lifted, the driving tooth segment 141 is used to drive the first circular plate 131 to rotate. During the rotation of the first circular plate 131, the sliding block 137 installed on the bottom side of the blocking block 130 and the track groove 1 35 cooperates with each other, so that the trajectory groove 135 guides the moving trajectory of the blocking block 130. At the same time, the sliding column 136 installed on the upper side of the blocking block 130 will slide from one end of the inclined groove 134 to the other end, so that the gap between the several blocking blocks gradually becomes larger, so the water output becomes larger, and the evaporated water is compensated, and the possibility of uneven irrigation caused by water evaporation is avoided as much as possible, thereby improving the irrigation effect; not only that, when the movable tube 121 is pulled down, the several blocking blocks are gradually approached to block the water outlet 133, thereby reducing the water output, minimizing the waste of excessive liquid, and further improving the irrigation effect.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A drainage irrigation device for a water conservancy project, comprising a water reservoir (110), wherein a sealed barrel (111) for pre-storing liquid is installed inside the water reservoir (110), a water inlet pipe (112) inserted into the water reservoir (110) is installed on one side of the sealed barrel (111), and a water outlet pipe (113) is installed on the other side of the sealed barrel (111), characterized in that: An irrigation nozzle (120) is installed at the end of the water outlet pipe (113), a blocking mechanism (230) is installed inside the water outlet pipe (113), a blocking block (130) for blocking the inside of the water outlet pipe (113) is installed inside the blocking mechanism (230), a first support plate (191) and a second support plate (150) are installed on the side of the water reservoir (110), and a driving cylinder (190) for controlling the movement of the blocking mechanism (230) is installed on the first support plate (191); A water inlet (114) for irrigation is installed on the upper side of the sealed barrel (111); the height of the water outlet pipe (113) is lower than the horizontal plane of the irrigation water; a first support seat (151) is installed on the upper side of the first support plate (191); and a second support seat (153) is installed on the upper side of the second support plate (150); The blocking mechanism (230) comprises a first circular plate (131) and a second circular plate (132) installed inside the water outlet pipe (113); the first circular plate (131) is rotatably fitted inside the water outlet pipe (113); a plurality of blocking blocks (130) are movably installed between the first circular plate (131) and the second circular plate (132); and water outlets (133) for water supply and circulation are provided on the surfaces of the first circular plate (131) and the second circular plate (132); A plurality of inclined grooves (134) are provided on the surface of the first circular plate (131), and the inclined grooves (134) are provided on the surface of the first circular plate (131) in a ring array. A track groove (135) is provided on the surface of the second circular plate (132). A sliding column (136) is installed on the upper side of the blocking block (130), and a sliding block (137) is installed on the bottom side of the blocking block (130). The sliding column (136) is slidably matched with the inclined groove (134), and the sliding block (137) is slidably matched with the track groove (135). The side of the water outlet pipe (113) is provided with an arc-shaped groove (140), the first circular plate (131) is rotatably fitted on the side of the arc-shaped groove (140), and the first circular plate (131) and the arc-shaped groove (140) are interference fit; A first pulley (152) is rotatably mounted on the side of the first support seat (151), a second pulley (154) is rotatably mounted on the side of the second support seat (153), a transmission belt (155) is installed between the second pulley (154) and the first pulley (152), and a connecting shaft (170) is connected to the rotating shaft of the first pulley (152); A driving rack (220) is installed at the movable end of the driving cylinder (190); a sliding groove (221) is provided on the surface of the first supporting plate (191); the driving rack (220) is slidably matched with the sliding groove (221); a driving gear (222) is installed on the surface of the connecting shaft (170); the driving gear (222) is meshed with the driving rack (220); A bevel gear (161) coaxially connected to the second pulley (154) is installed on the side of the second support seat (153), a tooth segment (141) is installed on the side of the first circular plate (131), and the bevel gear (161) meshes with the tooth segment (141); A driving gear (171) is installed at the end of the connecting shaft (170), an inclined sliding seat (180) is installed on the side of the first supporting seat (151), a pushing rack (181) is slidably installed inside the inclined sliding seat (180), and the driving gear (171) is meshed with the pushing rack (181); The irrigation spray pipe (120) comprises an inclined pipe (122) and a movable pipe (121) hinged to the side of the inclined pipe (122), a first corrugated pipe (123) is installed inside the movable pipe (121) and the inclined pipe (122), and the first corrugated pipe (123) is communicated with the water outlet pipe (113); A sliding plate (210) is installed on the upper side of the pushing rack (181), a sliding groove (211) is installed inside the sliding plate (210), a sliding block (212) is installed on the bottom side of the movable tube (121), the sliding block (212) is slidably matched with the sliding groove (211), and the middle part of the inclined tube (122) is set as a corrugated section (213); When the movable tube (121) is lifted, the gaps between the plurality of blocking blocks (130) gradually become larger; While the movable pipe (121) is pulled downward, a plurality of blocking blocks (130) gradually approach to block the water outlet (133).

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