Water-saving garden plant irrigation device

Abstract

The application discloses a water-saving garden green plant irrigation device and belongs to the field of garden maintenance equipment. The water-saving garden green plant irrigation device comprises a main water pipe, a plurality of branch water pipes connected to the main water pipe, water sprayers connected to the end of the branch water pipes, and a plurality of water sprayers arranged in a matrix on the two sides of the main water pipe. The water sprayer comprises a driving box, a driving mechanism arranged in the driving box, a flow guide mechanism, the flow guide mechanism comprising a fixed disc, a plurality of support arms arranged uniformly in the circumferential direction of the fixed disc, and a flow guide cover arranged between adjacent support arms. The flow guide cover comprises a flow converging section for receiving water flow sprayed by a spray head and an arc-shaped flow guide section for guiding and distributing the converged water flow. The flow converging section is movably connected to the support arm through a pin shaft, and a torsional spring is arranged outside the pin shaft. The water-saving garden green plant irrigation device utilizes the guiding effect of the arc-shaped flow guide section and the rotatable flow guide cover. When water column is sprayed to the flow guide cover, the outflowing water forms an irrigation track from near to far, thereby reducing the irrigation dead angle and ensuring the uniformity of green plant irrigation.

Description

Technical Field

[0001] This invention belongs to the field of garden maintenance equipment, specifically relating to a water-saving garden green plant irrigation device. Background Technology

[0002] In the field of garden maintenance, irrigation is one of the core elements for ensuring the healthy growth of green plants and maintaining the aesthetic effect of garden landscapes. Reasonable and efficient irrigation techniques can not only improve the survival rate and growth quality of green plants, but also achieve water conservation, meeting the management needs of modern gardens for "water and energy saving." Currently, the most widely used equipment for garden plant irrigation is the rotary sprinkler. Due to its simple structure, convenient installation, and wide coverage, this type of sprinkler is widely used in various garden scenarios such as urban parks, residential green spaces, and roadside green belts.

[0003] Currently, most garden and green plant irrigation uses rotary sprinklers, such as Figure 1 As shown, the irrigation zone 4 of each sprinkler 3 is a ring-shaped area formed around the sprinkler. Due to the limitations of its spraying structure and hydrodynamic characteristics, a dead zone will be formed in the area near the center of the sprinkler. At the same time, in actual garden irrigation operations, the coverage of a single rotary sprinkler is limited. In order to achieve comprehensive irrigation of a large area of ​​garden, it is usually necessary to use multiple sprinklers in series or in an array.

[0004] by Figure 1 Taking the simultaneous use of four sprinklers as an example, in this arrangement, in addition to the aforementioned irrigation dead zones near each sprinkler itself, a common irrigation dead zone will be formed at the geometric center of the ring-shaped irrigation area of ​​all four sprinklers. For the plants within these two types of irrigation dead zones, they can only obtain water through soil infiltration or water flow after the water in the irrigation area has thoroughly soaked through. This passive watering method has obvious drawbacks.

[0005] On the one hand, the time and amount of water received by plants in the sprinkler dead zones differ significantly from those in the sprinkler irrigation area, leading to uneven irrigation and affecting the overall growth quality and landscape consistency of the plants, even reducing their survival and retention rates. On the other hand, to ensure that plants in the sprinkler dead zones receive sufficient water, the overall irrigation time must be extended, resulting in over-irrigation in the sprinkler irrigation area. A large amount of water is lost through infiltration and evaporation without being absorbed by the plant roots, causing a serious waste of water resources. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water-saving garden green plant irrigation device to solve the problems of dead spraying corners, uneven irrigation and water waste in existing rotary sprinklers, thereby reducing dead spraying corners and ensuring the uniformity of green plant irrigation.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A water-saving irrigation device for garden plants includes a main water pipe with several branch water pipes connected to it. Sprinklers are connected to the ends of the branch water pipes, and multiple sprinklers are arranged in a matrix on both sides of the main water pipe. Each sprinkler includes a drive box with an inlet pipe connected to one side and an outlet pipe on the drive box. Several nozzles are circumferentially arranged on the outlet pipe. A drive mechanism is located inside the drive box and connected to the outlet pipe for driving its rotation. The device also includes a flow guiding mechanism, which includes a fixed plate connected to the drive box via connecting rods on both sides. Several support arms are evenly arranged circumferentially on the fixed plate, and a flow guide shroud is provided between adjacent support arms. The flow guide shroud includes a confluence section for receiving the water flow from the nozzles and an arc-shaped flow guide section for guiding and diverting the confluenced water flow. The confluence section is movably connected to the support arms via pins on both sides. A torsion spring is sleeved on the outside of the pin, with one end connected to the flow guide shroud and the other end connected to the support arm.

[0008] Furthermore, a ground nail is fixedly connected to the lower part of the drive box; a partition is provided inside the drive box; the drive mechanism includes a blade rotatably connected to the lower part of the partition; the water inlet pipe is installed at the eccentric position of the blade; a turntable is fixedly connected to the upper end of the blade's rotating shaft through the partition; a semi-circular boss is provided at the center of the turntable; a lever is also eccentrically arranged on the turntable; the water outlet pipe is rotatably connected to the partition, and the lower end of the water outlet pipe passes through the partition; a grooved wheel is fixedly connected to the water outlet pipe; the grooved wheel includes several radial grooves that cooperate with the lever and several locking grooves that cooperate with the semi-circular boss; the number of radial grooves and locking grooves is equal to the number of guide shields; and the position of the locking grooves corresponds to the position of the guide shields.

[0009] Furthermore, the flow guide is a trough-shaped structure extending along the direction of water flow, and the width of the trough of the flow guide section gradually increases in the direction away from the confluence section, forming a flared flow guide cavity.

[0010] Furthermore, the end of the support arm is threaded with a screw, and the lower end of the screw has a tapered structure.

[0011] Furthermore, several limiting bolts are threaded onto the side wall of the fixed disk. The positions of the limiting bolts correspond to the positions of the flow guide hoods, which are used to limit the rotation angle of the flow guide hoods and thus adjust the spraying range of each flow guide hood.

[0012] Furthermore, a protective cover is provided at the upper end of the water outlet pipe, and both ends of the protective cover are fixedly connected to the connecting rod. The fixed plate is installed on the protective cover through the support rod, and the lower end of the support rod is rotatably connected to the protective cover.

[0013] Furthermore, the connecting rod is slidably connected to the upper cover of the drive box, a piston is slidably connected inside the water outlet pipe, a piston rod is fixedly connected to the upper part of the piston, and the upper end of the piston rod passes through the water outlet pipe and is fixedly connected to the protective cover.

[0014] Furthermore, the support rod is threaded with two locking nuts, which are located on both sides of the fixed plate, and are used to adjust the height of the flow guiding mechanism, thereby adjusting the irrigation area of ​​the water flow.

[0015] Furthermore, the lower part of the fixed plate is fixedly connected to several mounting sleeves, the support arm is slidably installed inside the mounting sleeves, and one end of the support arm is fixedly connected to a drive pin; the fixed plate is provided with several straight grooves, and the drive pin is installed in the straight grooves with clearance fit.

[0016] Furthermore, an adjusting disc is rotatably connected inside the fixed disc. The adjusting disc has several arc-shaped grooves, and the number and position of the arc-shaped grooves correspond to those of the straight grooves. One end of the driving pin passes through the straight groove and is set in the arc-shaped groove. A locking bolt is threaded onto the adjusting disc for locking after the adjusting disc rotates.

[0017] The beneficial effects of this invention are: (1) The present invention utilizes the guiding effect of the arc-shaped guide section, combined with the rotatable guide hood. When the water column sprays through the guide hood, the water flow from the guide hood forms an irrigation trajectory from near to far, reducing the dead angle of sprinkler irrigation and ensuring the uniformity of green plant irrigation.

[0018] (2) The drive mechanism achieves intermittent rotation of the water outlet pipe through the cooperation of the lever and radial groove, the semi-circular boss and the locking groove, so that the nozzle can correspond one by one with each guide shroud and maintain a stable spraying time, avoiding the problem that the water flow cannot fully act on the guide shroud and the irrigation is insufficient due to the nozzle rotating too fast, and further improving the uniformity of irrigation and water-saving effect; and the drive mechanism uses the impact force of the water flow itself to provide power, without the need to add an additional power source, simplifying the device structure, reducing manufacturing costs and maintenance difficulty, and improving the practicality and economy of the device.

[0019] (3) The trough-shaped guide hood ensures the effective utilization rate of water flow and avoids water waste caused by side overflow; the fan-shaped water flow formed by the flared guide cavity increases the irrigation coverage of a single spray; at the same time, the fan-shaped water flow can effectively fill the irrigation gap between adjacent guide hoods, further weaken the dead angle of sprinkler irrigation, and, together with the rotation adjustment of the original guide mechanism, achieve a double improvement in irrigation uniformity and coverage.

[0020] (4) Through the combined effect of water flow thrust and gravity, the protective cover can automatically extend and retract without the need for an additional power source; when irrigation is in progress, the protective cover rises without affecting the spraying of the nozzle, and when irrigation stops, the protective cover automatically falls back and covers the nozzle, which can effectively block dust, fallen leaves, debris and other objects from entering the nozzle, avoid nozzle blockage, reduce the frequency and cost of nozzle maintenance, ensure the long-term stable operation of the device, and extend the service life of the nozzle, further improving the practicality and ease of operation and maintenance of the device.

[0021] (5) The height of the flow guiding mechanism can be flexibly adjusted by the locking nut on the support rod to achieve the initial adjustment of the irrigation area; by rotating the adjustment disc in conjunction with the arc groove, multiple drive pins can be driven to move synchronously, thereby achieving rapid synchronous adjustment of multiple flow guides and improving the adaptability and practicality of the irrigation device.

[0022] (6) By setting a screw with a gradually tapering lower end at the end of the support arm, when the nozzle rotates between two adjacent guide hoods, the water column impacts the screw at the end of the support arm. Under the obstruction of the screw, the water column disperses to form water splashes, which makes up for the gap area between the front end of the fan-shaped irrigation area of ​​the guide hood, ensuring the uniformity of irrigation, effectively making up for the irrigation dead corner in this area, avoiding irrigation blind spots, and further ensuring the uniformity of the entire irrigation area. In addition, since the screw is threadedly connected to the support arm, the length of the screw extending out of the support arm can be adjusted by rotating the screw, thereby changing the specific position of the water column impacting the screw, realizing flexible adjustment of the size of the water splashes, the diffusion range, etc., and can be adapted to different irrigation scenarios according to the different distribution density of green plants and irrigation needs.

[0023] (7) By adjusting the limiting bolts at the corresponding positions, the irrigation area of ​​each sprinkler is approximately rectangular. This not only effectively ensures the uniformity of water distribution in the entire garden greening irrigation area and eliminates local irrigation blind spots or water accumulation, but also prevents water from overflowing the irrigation area and splashing onto the road surface when the device is deployed and used in scenarios such as roadsides. This prevents interference with pedestrians and reduces the ineffective loss of water resources, further enhancing the device's scene adaptability and practical application value. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the irrigation area of ​​a sprinkler in the existing technology.

[0025] Figure 2 This is a schematic diagram of the irrigation area of ​​a water-saving garden greening irrigation device according to the present invention.

[0026] Figure 3 This is a schematic diagram of a sprinkler system.

[0027] Figure 4 This is a schematic diagram of the assembly of the drive box and the protective cover.

[0028] Figure 5 This is a schematic diagram of the inside of the drive box.

[0029] Figure 6 This is a schematic diagram of the drive mechanism.

[0030] Figure 7 This is a schematic diagram of one side of the flow guiding mechanism.

[0031] Figure 8 This is a schematic diagram of the other side of the flow guiding mechanism.

[0032] Figure 9 This is a schematic diagram of the fixed disk structure.

[0033] Figure 10 This is a schematic diagram of the adjustment disc structure.

[0034] Figure 11 This is a schematic diagram of the support arm structure.

[0035] Figure 12 This is a schematic diagram of the fairing structure.

[0036] In the diagram: 1. Main water pipe; 2. Branch water pipe; 3. Sprinkler; 31. Drive box; 311. Inlet pipe; 312. Baffle plate; 313. Ground stake; 32. Drive mechanism; 321. Blade; 322. Turntable; 323. Semi-circular boss; 324. Lever; 325. Grooved wheel; 3251. Radial groove; 3252. Locking groove; 33. Outlet pipe; 331. Nozzle; 34. Protective cover; 341. Connecting rod; 342. Piston rod; 343. Piston; 35. 351. Flow guiding mechanism; 351. Fixed plate; 3511. Support rod; 3512. Locking nut; 3513. Straight groove; 3514. Mounting sleeve; 3515. Limit bolt; 352. Support arm; 3521. Drive pin; 3522. Screw; 353. Flow guide cover; 3531. Merging section; 3532. Flow guiding section; 3533. Pin shaft; 3534. Torsion spring; 354. Adjusting plate; 3541. Arc groove; 3542. Locking bolt; 4. Sprinkler irrigation area. Detailed Implementation

[0037] The following will be combined with the appendix Figures 2-12 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] like Figure 2 As shown, a water-saving irrigation device for garden plants includes a main water pipe 1, to which several branch water pipes 2 are connected. Sprinklers 3 are connected to the ends of the branch water pipes 2, and the sprinklers 3 are arranged in a matrix on both sides of the main water pipe 1. Figures 3-5 As shown, the sprinkler 3 includes a drive box 31, with an inlet pipe 311 connected to one side of the drive box 31. An outlet pipe 33 is provided on the drive box 31, and several nozzles 331 are circumferentially arranged on the outlet pipe 33. A drive mechanism 32 is provided inside the drive box 31, connected to the outlet pipe 33, for driving the outlet pipe 33 to rotate. It also includes a flow guiding mechanism 35, such as... Figure 3 , Figures 7-8 As shown, the flow guiding mechanism 35 includes a fixed disk 351. The two sides of the fixed disk 351 are connected to the drive box 31 via connecting rods 341. Several support arms 352 are evenly arranged around the fixed disk 351, and flow guide shrouds 353 are provided between adjacent support arms 352. Figure 12 As shown, the flow guide shroud 353 includes a confluence section 3531 for receiving the water flow sprayed from the nozzle 331, and an arc-shaped flow guide section 3532 for guiding and diverting the water flow after confluence. The two sides of the confluence section 3531 are movably connected to the support arm 352 through pins 3533. A torsion spring 3534 is sleeved on the outside of the pins 3533. One end of the torsion spring 3534 is connected to the flow guide shroud 353, and the other end of the torsion spring 3534 is connected to the support arm 352.

[0040] During irrigation, water from the main water pipe 1 is transported through the branch water pipe 2 to the inlet pipe 311 of each sprinkler 3. After entering the drive box 31, it is sprayed out from the nozzle 331 of the outlet pipe 33. The water flow directly acts on the confluence section 3531 of the guide shroud 353. The confluence section 3531 gathers the dispersed water column and guides it to the arc-shaped guide section 3532. Under the guidance of the curved surface of the arc-shaped guide section 3532, the water flows out along the tangential direction at the end of the guide section 3532. At the same time, the water column rushes... The force generated by the impact on the guide shield 353 drives the guide shield 353 to rotate around the pin 3533. At this time, the torsion spring 3534 outside the pin 3533 undergoes elastic deformation, and the guide shield 353 automatically rotates upward, so that the outflowing water forms an irrigation trajectory from near to far. This ensures that all green plants within the coverage area of ​​the sprinkler 3 can directly receive uniform water replenishment, avoiding the problem of water shortage in some green plants and water accumulation in other areas, thus improving the uniformity of irrigation. In addition, this solution does not require extending the irrigation time to meet the water replenishment needs of dead areas, reducing water infiltration and evaporation waste, and saving irrigation water. The drive mechanism 32 drives the water outlet pipe 33 to rotate. When the nozzle 331 turns to the next guide shield 353, the previous guide shield 353 quickly returns to its initial state under the action of the torsion spring 3534, ensuring the continuity and stability of the alternating operation of each guide shield 353.

[0041] like Figure 3 As shown, a ground nail 313 is fixedly connected to the lower part of the drive box 31. The ground nail 313 is inserted into the soil to ensure the stability of the sprinkler 3 during use; as Figure 5 As shown, the drive box 31 has a partition 312 inside, such as Figure 6 As shown, the drive mechanism 32 includes a blade 321 rotatably connected to the lower part of the partition 312. The water inlet pipe 311 is installed at an eccentric position on the blade 321. The upper end of the rotating shaft of the blade 321 passes through the partition 312 and is fixedly connected to a turntable 322. A semi-circular boss 323 is provided at the center of the turntable 322, and a lever 324 is also eccentrically arranged on the turntable 322. The water outlet pipe 33 is rotatably connected to the partition 312, and the lower end of the water outlet pipe 33 passes through the partition 312. A grooved wheel 325 is fixedly connected to the water outlet pipe 33. The grooved wheel 325 includes a plurality of radial grooves 3251 that cooperate with the lever 324 and a plurality of locking grooves 3252 that cooperate with the semi-circular boss 323. The number of radial grooves 3251 and locking grooves 3252 is equal to the number of flow guide shrouds 353, and the position of the locking grooves 3252 corresponds to the position of the flow guide shrouds 353.

[0042] After the water flows into the drive box 31 through the inlet pipe 311, it impacts the blades 321 at the bottom of the baffle 312, causing the blades 321 to rotate around their axis. The blades 321 drive the upper turntable 322 to rotate synchronously through the axis. When the lever 324 on the turntable 322 disengages from the radial groove 3251 on the grooved wheel 325, the semi-circular boss 323 at the center of the turntable 322 engages in the corresponding locking groove 3252 of the grooved wheel 325, thus locking and positioning the grooved wheel 325. At this time, the grooved wheel 325 loses its driving force and remains stationary. The outlet pipe 33, which is fixedly connected to the grooved wheel 325, also stops, allowing the water flow from the nozzle 331 to continuously act on the corresponding guide hood 353 for a set time, ensuring that the irrigation area corresponding to the guide hood 353 receives sufficient and uniform water replenishment. As the turntable 322 continues to rotate, when the lever 324 rotates to align with and engage with the next radial groove 3251 on the grooved wheel 325, the lever 324 will drive the grooved wheel 325 and the water outlet pipe 33 to rotate rapidly, causing the nozzle 331 to quickly move to the position of the next guide shield 353. Then, the semi-circular boss 323 engages with the corresponding locking groove 3252, and the nozzle 331 stops spraying water again.

[0043] like Figure 12 As shown, the flow guide shroud 353 is a groove-shaped structure extending along the direction of water flow, and the width of the groove of the flow guide section 3532 gradually increases in the direction away from the confluence section 3531, forming a flared flow guide cavity.

[0044] During operation, the water jet from the nozzle 331 first enters the confluence section 3531 of the guide shroud 353. Because the guide shroud 353 has a trough-like structure, it circumferentially limits the water flow, effectively preventing water from overflowing from the side of the guide shroud 353 and ensuring that the water flows along the trough to the guide section 3532. After entering the guide section 3532, the width of the guide section 3532 gradually increases away from the confluence section 3531, forming a flared guide cavity. Guided by the guide cavity, the water gradually diffuses as the width of the trough increases, eventually spraying out from the end of the guide section 3532 in a fan-shaped trajectory, increasing the irrigation coverage of a single spray.

[0045] like Figure 11As shown, the end of the support arm 352 is threaded with a screw 3522, and the lower end of the screw 3522 has a tapered structure. When the nozzle 331 rotates between two adjacent guide hoods 353, the water column impacts the screw 3522 at the end of the support arm 352. Under the blocking effect of the screw 3522, the water column disperses to form water splashes, which fills the gap area between the front ends of the fan-shaped irrigation area 4 of the guide hood 353, ensuring the uniformity of irrigation, effectively compensating for the irrigation dead corner in this area, avoiding irrigation blind spots, and further ensuring the uniformity of the entire irrigation area. In addition, since the screw 3522 is threadedly connected to the support arm 352, the length of the screw 3522 extending out of the support arm 352 can be adjusted by rotating the screw 3522, thereby changing the specific position of the water column impacting the screw 3522, realizing flexible adjustment of the water splash size, diffusion range, and other states. It can be adapted to different irrigation scenarios according to different green plant distribution densities and irrigation needs.

[0046] like Figure 7 As shown, a number of limiting bolts 3515 are threadedly connected to the side wall of the fixed plate 351. The position of the limiting bolts 3515 corresponds to the position of the flow guide 353, which is used to limit the rotation angle of the flow guide 353, thereby adjusting the spraying range of each flow guide 353.

[0047] Under the impact of the water column, the guide shield 353 rotates around the pin 3533. When the guide shield 353 rotates to a set angle, it abuts against the corresponding limiting bolt 3515. The limiting bolt 3515 blocks and limits the guide shield 353, thereby limiting the maximum rotation angle of the guide shield 353. The rotation angle of the guide shield 353 directly determines the inclination of its arc-shaped guide section 3532, which in turn affects the coverage area after the water is sprayed. When multiple sprinklers 3 are deployed in coordination, by adjusting the limiting bolts 3515 at the corresponding positions, the irrigation area 4 of each sprinkler 3 is made approximately rectangular. This not only effectively ensures the uniformity of water reception in the entire garden greening irrigation area and eliminates local irrigation blind spots or water accumulation, but also, when deployed and used in scenarios such as roadsides, by controlling the irrigation boundary, it avoids water overflowing the irrigation area and splashing onto the road surface. This prevents interference with pedestrians and reduces the ineffective loss of water resources, further improving the device's scene adaptability and practical application value.

[0048] like Figure 4 , Figure 5 As shown, the upper end of the water outlet pipe 33 is provided with a protective cover 34. Both ends of the protective cover 34 are fixedly connected to the connecting rod 341. The fixed plate 351 is installed on the protective cover 34 through the support rod 3511. The lower end of the support rod 3511 is rotatably connected to the protective cover 34. During the green plant irrigation operation, the protective cover 34 is pulled up to fully expose the nozzle. When irrigation is stopped, the protective cover 34 is pushed down to cover the nozzle 331, thus preventing the nozzle 331 from being blocked.

[0049] The connecting rod 341 is slidably connected to the upper cover of the drive box 31, such as... Figure 5 As shown, a piston 343 is slidably connected inside the water outlet pipe 33, and a piston rod 342 is fixedly connected to the upper part of the piston 343. The upper end of the piston rod 342 passes through the water outlet pipe 33 and is fixedly connected to the protective cover 34.

[0050] During sprinkler irrigation, water enters the outlet pipe 33, generating an upward thrust. This thrust overcomes the weight of the protective cover 34 and the flow guiding mechanism 35, pushing the piston 343 and piston rod 342 upward along the axial direction of the outlet pipe 33. This, in turn, moves the protective cover 34 upward, causing the piston 343 to move above the nozzle 331. At this point, the nozzle 331 is fully exposed, allowing water to spray out normally for irrigation. When irrigation stops, the water thrust in the outlet pipe 33 disappears. Under the weight of the protective cover 34 and the flow guiding mechanism 35, the piston 343 falls downward along the axial direction of the outlet pipe 33. The piston rod 342 moves downward synchronously with the piston 343, causing the protective cover 34 to move downward and cover the nozzle 331, thus achieving the automatic extension and retraction of the protective cover 34.

[0051] like Figure 7 , Figure 8 As shown, the support rod 3511 is threaded with two locking nuts 3512, and the two locking nuts 3512 are located on both sides of the fixed plate 351 respectively. They are used to adjust the height of the flow guiding mechanism 35, thereby adjusting the water flow of the irrigation area 4 and improving the flexibility of the irrigation device.

[0052] like Figure 8 , Figure 9 , Figure 11 As shown, a plurality of mounting sleeves 3514 are fixedly connected to the lower part of the fixed plate 351. The support arm 352 is slidably installed inside the mounting sleeve 3514. One end of the support arm 352 is fixedly connected to a drive pin 3521. The fixed plate 351 is provided with a plurality of straight grooves 3513. The drive pin 3521 is fitted into the straight grooves 3513 with clearance. By pushing the drive pin 3521 to slide along the straight grooves 3513, the position of the support arm 352 is adjusted, thereby adjusting the position of the guide shroud 353 and further expanding the adjustment range of the sprinkler irrigation area 4.

[0053] like Figure 7 As shown, an adjusting disc 354 is also rotatably connected inside the fixed disc 351, such as... Figure 10As shown, the adjusting disk 354 is provided with several arc-shaped grooves 3541. The number and position of the arc-shaped grooves 3541 correspond to those of the straight grooves 3513. One end of the driving pin 3521 passes through the straight groove 3513 and is positioned within the arc-shaped groove 3541. A locking bolt 3542 is threaded onto the adjusting disk 354 for locking after rotation. When the position of the air deflector 353 needs to be adjusted, the locking bolt 3542 is loosened and the adjusting disk 354 is rotated. The multiple arc-shaped grooves 3541 drive the multiple driving pins 3521 to move synchronously along the straight grooves 3513, achieving rapid and synchronous adjustment of the multiple air deflectors 353.

[0054] Any modifications or additions made to the specific embodiments described by those skilled in the art, or substitutions made in a similar manner, shall fall within the protection scope of this invention as long as they do not deviate from the scope defined by the structure of this invention.

Claims

1. A water-saving irrigation device for garden plants, comprising a main water pipe, to which a plurality of branch water pipes are connected, and sprinklers are connected to the ends of the branch water pipes, wherein the plurality of sprinklers are arranged in a matrix on both sides of the main water pipe; characterized in that, The sprinkler includes a drive box with an inlet pipe connected to one side and an outlet pipe on the drive box. The outlet pipe has several nozzles arranged circumferentially. A drive mechanism is located inside the drive box and connected to the outlet pipe for driving its rotation. It also includes a flow guiding mechanism, which includes a fixed plate connected to the drive box via connecting rods on both sides. Several support arms are evenly arranged circumferentially on the fixed plate, and a flow guide shield is provided between adjacent support arms. The flow guide shield includes a confluence section for receiving the water flow from the nozzles and an arc-shaped flow guide section for guiding and diverting the confluenced water flow. The confluence section is movably connected to the support arms via pins on both sides. A torsion spring is sleeved on the outside of the pin, with one end connected to the flow guide shield and the other end connected to the support arm.

2. The water-saving irrigation device for garden plants according to claim 1, characterized in that, The drive box is fixedly connected to a ground nail at its lower part. The drive box has a partition inside. The drive mechanism includes a blade rotatably connected to the lower part of the partition. The water inlet pipe is installed at the eccentric position of the blade. The upper end of the blade's rotating shaft passes through the partition and is fixedly connected to a turntable. A semi-circular boss is provided at the center of the turntable, and a lever is also eccentrically arranged on the turntable. The water outlet pipe is rotatably connected to the partition, and the lower end of the water outlet pipe passes through the partition. A grooved wheel is fixedly connected to the water outlet pipe. The grooved wheel includes several radial grooves that cooperate with the lever and several locking grooves that cooperate with the semi-circular boss. The number of radial grooves and locking grooves is equal to the number of guide shields, and the position of the locking grooves corresponds to the position of the guide shields.

3. The water-saving irrigation device for garden plants according to claim 1, characterized in that, The flow guide is a trough-shaped structure extending along the direction of water flow, and the width of the trough of the flow guide section gradually increases in the direction away from the confluence section, forming a flared flow guide cavity.

4. The water-saving irrigation device for garden plants according to claim 1, characterized in that, The support arm is threaded with a screw at its end, and the lower end of the screw has a tapered structure.

5. A water-saving irrigation device for garden plants according to claim 1, characterized in that, The fixed plate has several limiting bolts threaded onto its side wall. The positions of the limiting bolts correspond to the positions of the flow guides, which are used to limit the rotation angle of the flow guides and thus adjust the spraying range of each flow guide.

6. The water-saving irrigation device for garden plants according to claim 1, characterized in that, The upper end of the water outlet pipe is equipped with a protective cover, and both ends of the protective cover are fixedly connected to the connecting rod. The fixed plate is installed on the protective cover through the support rod, and the lower end of the support rod is rotatably connected to the protective cover.

7. A water-saving irrigation device for garden plants according to claim 6, characterized in that, The connecting rod is slidably connected to the upper cover of the drive box, a piston is slidably connected inside the water outlet pipe, a piston rod is fixedly connected to the upper part of the piston, and the upper end of the piston rod passes through the water outlet pipe and is fixedly connected to the protective cover.

8. A water-saving irrigation device for garden plants according to claim 6, characterized in that, The support rod is threaded with two locking nuts, which are located on both sides of the fixed plate. These nuts are used to adjust the height of the flow guiding mechanism, thereby adjusting the irrigation area of ​​the water flow.

9. A water-saving irrigation device for garden plants according to any one of claims 1-8, characterized in that, The lower part of the fixed plate is fixedly connected to several mounting sleeves, and the support arm is slidably installed inside the mounting sleeves. One end of the support arm is fixedly connected to a drive pin. The fixed plate is provided with several straight grooves, and the drive pin is installed in the straight grooves with clearance fit.

10. A water-saving irrigation device for garden plants according to claim 9, characterized in that, An adjusting disc is rotatably connected inside the fixed disc. The adjusting disc has several arc-shaped grooves, and the number and position of the arc-shaped grooves correspond to those of the straight grooves. One end of the driving pin passes through the straight groove and is set in the arc-shaped groove. A locking bolt is threaded onto the adjusting disc for locking after the adjusting disc rotates.

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