Efficient water storage and water-saving irrigation device and method for garden green land

Abstract

The invention relates to a garden green land efficient water storage and water saving irrigation device and method, and belongs to the technical field of garden irrigation, the garden green land efficient water storage and water saving irrigation device comprises a water supply pipe, and the water supply pipe is laid on the surface of a garden green land; a plurality of same-pressure pipe joint assemblies are mounted on the water supply pipe, and the adjacent same-pressure pipe joint assemblies are arranged at intervals in the length direction of the water supply pipe; all the same-pressure pipe joint assemblies and the water supply pipe form a water supply channel, each same-pressure pipe joint assembly is provided with a spray head used for releasing accumulated water and an adjusting assembly used for adjusting the initial state of the same-pressure pipe joint assembly, and each same-pressure pipe joint assembly is used for adjusting the water pressure of the corresponding spray head. The spray irrigation device has the effect of ensuring uniform spray irrigation on the garden green land.

Description

Technical Field

[0001] The present application relates to the technical field of garden irrigation, and in particular to a highly efficient water storage and water-saving irrigation device and method for garden green land. Background Art

[0002] With the acceleration of urbanization, the construction and maintenance of gardens and green spaces has become an important link.

[0003] At present, the irrigation of gardens and green lands mostly adopts traditional sprinkler irrigation, drip irrigation and other methods. In the conventional sprinkler irrigation method, a water pipe is laid on the garden and green land, and multiple sprinkler heads are installed on the water pipe. Adjacent sprinkler heads are arranged at intervals along the length of the water pipe. Pressurized water is transported into the water pipe and then sprayed out through the sprinkler heads to complete the sprinkler irrigation.

[0004] In actual operation, the end of the water pipe close to the water inlet is called the proximal end of the water pipe. The water pressure at the proximal end of the water pipe is high, and the end of the water pipe far from the water outlet is called the distal end of the water pipe. As water flows in the pipe, there will be pressure loss along the way. The farther away from the water inlet, the lower the pressure at the distal end of the water pipe. The pressure difference at both ends of the water pipe causes the water output of the sprinkler at the proximal end of the water pipe to be greater than the water output of the sprinkler at the distal end of the water pipe, resulting in uneven sprinkler irrigation. Summary of the invention

[0005] In order to ensure uniform sprinkler irrigation of gardens and green lands, the present application provides a highly efficient water storage and water-saving irrigation device and method for gardens and green lands.

[0006] In the first aspect, the present application provides a highly efficient water storage and water-saving irrigation device for garden green land, which adopts the following technical scheme: A highly efficient water storage and water-saving irrigation device for a garden green space comprises a water storage tank, a curbstone, a water delivery pipe and a water pump, wherein the water delivery pipe is laid on the surface of the garden green space, the water storage tank is buried underground for water storage, the water pump is fixed on the inner wall of the water storage tank for pumping the accumulated water in the water storage tank into the water delivery pipe, the curbstone is hollow and connected to the top of the water storage tank, the curbstone is made of permeable concrete material and the inner wall of its bottom is made of ordinary concrete material; a plurality of isobaric pipe joint assemblies are installed on the water delivery pipe, and adjacent isobaric pipe joint assemblies are arranged at intervals along the length direction of the water delivery pipe; all the isobaric pipe joint assemblies and the water delivery pipe form a water delivery passage, each of the isobaric pipe joint assemblies is installed with a nozzle for releasing accumulated water and an adjustment assembly for adjusting the initial state of the isobaric pipe joint assembly, and each of the isobaric pipe joint assemblies is used to adjust the water pressure at the corresponding nozzle.

[0007] By adopting the above technical solution, the curbstones will enclose the green space into a closed area, and the rainwater or spray water that cannot be absorbed by the green space will eventually penetrate into the water reservoir through the curbstones, thereby achieving the effect of storing water; when spraying is needed, the water pump is started, and the water pump pressurizes the accumulated water in the water reservoir into the water supply pipe, and sprays it out through the isobaric pipe joint assembly and the nozzle to achieve the spraying effect. By adjusting the isobaric pipe joint assembly, the water pressure at the corresponding nozzle is adjusted, so that the nozzles on the water supply pipe can spray or stop at the same time, thereby achieving the effect of uniform spraying of the garden green space.

[0008] Optionally, the isopressure pipe joint assembly includes a connecting pipe, a pressure plate, a spring, an inner pipe, a positioning plate and a head, the end of the connecting pipe is connected to the inside of the water supply pipe to form a water supply passage, the pressure plate is slidably arranged inside the connecting pipe, the circumferential side wall of the pressure plate abuts against the inner wall of the connecting pipe, the positioning plate is rotatably connected to the end of the connecting pipe away from the water supply pipe, the positioning plate rotates relative to the water supply pipe, the inner pipe is located between the positioning plate and the pressure plate, one end of the inner pipe passes through the pressure plate and is connected to the inside of the water supply pipe, the inner pipe is fixedly connected to the pressure plate, and the other end of the inner pipe is hinged to the head, two heads are provided, the two heads are buckled in the direction close to the center line of the inner pipe to block the end of the inner pipe, and the two heads are swung in the direction away from the center line of the inner pipe to form a water supply passage between the nozzle and the inside of the water supply pipe; a through hole is opened on the positioning plate, the two heads are located in the through hole in a buckled state and slide relative to the positioning plate in a direction away from or close to the pressure plate, and the spring is located between the positioning plate and the pressure plate to push the pressure plate to resist water pressure.

[0009] By adopting the above technical solution, the water pump pumps the accumulated water into the water supply pipe, and the accumulated water pushes the pressure plate to move toward the positioning plate, continuously compressing the spring to deform, and the pressure plate drives the seal head to move in the through hole through the inner tube until the seal head completely passes through the through hole. At this time, the two seal heads are flushed open by the accumulated water, that is, the two seal heads swing away from each other, and the accumulated water finally flows into the nozzle and is sprayed out through the nozzle. The initial compression posture of the spring can be adjusted by adjusting the assembly, thereby adjusting the initial water pressure resistance of the isobaric pipe joint assembly, so that the nozzles at different positions of the water supply pipe can still maintain the effect of opening and spraying at the same time or closing at the same time after being exposed to different water pressures.

[0010] Optionally, the connecting pipe is a tee pipe, a straight pipe or an elbow.

[0011] By adopting the above technical solution, the isobaric pipe joint assembly can be installed at different positions of the water supply pipe, no matter it is a turning part or an end of the water supply pipe.

[0012] Optionally, the adjustment assembly includes a bearing ring and a guide rod, the bearing ring is located on the side of the positioning plate close to the pressure plate and is threadedly connected to the positioning plate, the guide rod is located inside the connecting tube, one end of the guide rod is fixedly connected to the inner wall of the connecting tube, and the other end is plug-inly connected to the bearing ring, and the guide rod is used to guide the bearing ring to slide relative to the positioning plate in a direction approaching or away from the pressure plate; one end of the spring is fixedly connected to the pressure plate, and the other end abuts against the bearing ring.

[0013] By adopting the above technical solution, the positioning plate is rotated, and the positioning plate drives the bearing ring to generate a rotation trend. However, due to the limitation of the bearing ring by the guide rod, the bearing ring can only slide relative to the positioning plate in the direction close to or away from the pressure plate, thereby achieving the effect of changing the initial compression posture of the spring.

[0014] Optionally, a limit rod is hinged on the outer wall of the positioning plate, a socket is provided on the outer wall of the connecting tube, there are multiple sockets, adjacent sockets are spaced apart along the circumferential outer wall of the connecting tube, and the limit rod is inserted into the corresponding socket at one end away from the positioning plate.

[0015] By adopting the above technical solution, the end of the limit rod is taken out from the insertion hole when the positioning plate rotates, and the end of the limit rod is inserted into the corresponding insertion hole after the positioning plate has completed its rotation.

[0016] Optionally, rubber pads are fixed to the edges of the two heads that are close to each other.

[0017] By adopting the above technical solution, the rubber pad improves the sealing performance of the inner tube end when the two heads are buckled together.

[0018] Optionally, a protrusion is fixed on the outer wall of the head, the end of the protrusion abuts against the inner wall of the through hole, and the protrusion is located close to the hinge axis between the head and the inner tube.

[0019] By adopting the above technical solution, a hinge axis exists after the head and the inner tube are hinged, and the hinge axis is convex relative to the outer wall of the inner tube. The existence of the convex block prevents the two heads from opening when they are in the through hole, and they can only open after they completely pass through the through hole.

[0020] Optionally, a chamfer is provided at the junction of the positioning plate and the inner wall of the through hole.

[0021] By adopting the above technical solution, the chamfered corners are arranged to facilitate the recovery of the head into the through hole.

[0022] Optionally, a clamping assembly is provided on the positioning plate, and the clamping assembly is located on a side of the positioning plate away from the connecting pipe, and the clamping assembly is used for installing and removing the nozzle.

[0023] By adopting the above technical solution, it is convenient to clean or replace the nozzle.

[0024] In the second aspect, the present application provides a method for efficient water storage and water-saving irrigation of garden green land, which adopts the following technical scheme: A method for efficient water storage and water-saving irrigation of garden green land comprises the following steps: S1. Lay the water supply pipe on the green land surrounded by curbstones and install the isobaric pipe joint assembly and sprinkler; S2. The initial resistance pressure at the corresponding nozzle is adjusted by adjusting the isobaric pipe joint assembly. The initial resistance pressure is the initial resistance force generated by the deformation of the spring and the pressure plate. When the water pressure is greater than the initial resistance pressure, the accumulated water pushes the pressure plate and finally makes the head extend out of the through hole to be in an open state. S3. The initial resistance pressure adjusted at the nozzle close to the water pump is large, and the initial resistance pressure adjusted at the nozzle far from the water pump is relatively small. By analogy, the farther from the water pump, the smaller the initial resistance pressure adjusted; S4. Start the water pump to transport the accumulated water in the reservoir into the water supply pipe and pressurize it.

[0025] By adopting the above technical solution, the initial compression posture of the spring can be adjusted through the adjustment component, thereby adjusting the initial water pressure resistance of the isopressure pipe joint component, so that the nozzles at different positions of the water supply pipe can still maintain the effect of opening the spray at the same time or closing the spray at the same time after being exposed to different water pressures.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The curbstones enclose the green space into a closed area. The rainwater or spray water that cannot be absorbed by the green space will eventually penetrate into the reservoir through the curbstones, achieving the effect of water storage; 2. When spraying is needed, start the water pump, which will pressurize the water in the reservoir and pump it into the water delivery pipe, and spray it out through the isobaric pipe joint assembly and the nozzle to achieve the spraying effect. By adjusting the isobaric pipe joint assembly and the regulating assembly, the water pressure at the corresponding nozzle can be adjusted, so that the nozzles on the water delivery pipe can spray or stop at the same time, so as to achieve the effect of uniform spraying of the garden green space; 3. The presence of the protrusions prevents the two heads from opening when they are in the through hole, and they can only open after they have completely passed through the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the local structure of the same pressure pipe joint assembly; Figure 3 It is a local structural cross-sectional view of the same pressure pipe joint assembly; Figure 4 It is a cross-sectional view of the local structure of the connecting pipe.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. water reservoir; 11. curbstone; 12. water pump; 2. water supply pipe; 3. isobaric pipe joint assembly; 31. connecting pipe; 311. socket; 32. pressure plate; 33. spring; 34. inner pipe; 35. positioning plate; 351. limit rod; 352. through hole; 36. end cap; 4. adjustment assembly; 41. bearing ring; 42. guide rod; 5. nozzle; 51. ring groove; 6. rubber pad; 7. bump; 8. snap-on assembly; 81. elastic member; 82. latch. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0030] The embodiment of the present application discloses a highly efficient water storage and water-saving irrigation device for garden green land.

[0031] refer to Figure 1 A highly efficient water storage and water-saving irrigation device for a garden green land comprises a water reservoir 1, a curbstone 11, a water delivery pipe 2, a water pump 12 and a nozzle 5. The water reservoir 1 is buried under the garden green land, the water delivery pipe 2 is laid on the surface of the garden green land, and the curbstone 11 encloses the garden green land into a closed area. The curbstone 11 is hollow, and the passage formed by the curbstone 11 is connected to the top of the water reservoir 1. The curbstone 11 is made of permeable concrete material, and the inner wall of the bottom of the curbstone 11 is made of ordinary concrete material. Rainwater on the garden green land that cannot be absorbed flows to the curbstone 11, penetrates into the curbstone 11, and is finally guided into the water reservoir 1 to achieve the effect of water storage.

[0032] refer to Figure 1 The water pump 12 is fixed to the inner wall of the water reservoir 1, and the water pump 12 pumps the accumulated water in the water reservoir 1 into the water delivery pipe 2. If the water delivery pipe 2 is not long enough, other water pipes are extended and connected to the water pump 12 so that the water pump 12 can deliver water to the water delivery pipe 2.

[0033] refer to Figure 1 , Figure 2 and Figure 3 There are multiple nozzles 5, and adjacent nozzles 5 are arranged at intervals along the length direction of the water supply pipe 2. A pressure-isolating pipe joint assembly 3 is arranged between the nozzle 5 and the water supply pipe 2. The pressure-isolating pipe joint assembly 3 includes a connecting pipe 31, a pressure plate 32, a spring 33, an inner pipe 34 and a sealing head 36. One end of the connecting pipe 31 is connected to the inside of the water supply pipe 2, and the other end is detachably connected to the nozzle 5, thereby forming a water supply passage, so that the accumulated water in the water supply pipe 2 is sprayed out through the nozzle 5. The connecting pipe 31 can be a three-way pipe, a straight pipe, or an elbow.

[0034] refer to Figure 2 and Figure 3The pressure plate 32 is slidably arranged inside the connecting tube 31, and the circumferential side wall of the pressure plate 32 abuts against the inner wall of the connecting tube 31. The positioning plate 35 is rotatably arranged at the end of the connecting tube 31 away from the water supply pipe 2. The positioning plate 35 rotates relative to the water supply pipe 2, and the center line of the positioning plate 35 is colinear with the center line of the end of the water supply pipe 2. A limiting rod 351 is hinged on the outer wall of the positioning plate 35, and the limiting rod 351 is C-shaped. A plurality of plug holes 311 are provided on the outer wall of the connecting tube 31, and adjacent plug holes 311 are spaced apart along the axial outer wall of the connecting tube 31. When the positioning plate 35 is rotated to a suitable angle, the free end of the limiting rod 351 is inserted into the corresponding plug hole 311 to complete the limiting of the positioning plate 35.

[0035] refer to Figure 3 and Figure 4 , an adjustment assembly 4 is arranged in the connecting tube 31, and the adjustment assembly 4 includes a bearing ring 41 and a guide rod 42. The bearing ring 41 is threadedly connected to the side wall of the positioning plate 35 and is located on the side wall of the positioning plate 35 close to the pressure plate 32. The center line of the bearing ring 41 is colinear with the center line of the positioning plate 35. The guide rod 42 and the spring 33 are both located between the pressure plate 32 and the positioning plate 35. The guide rod 42 is L-shaped. One end of the guide rod 42 is fixedly connected to the inner wall of the connecting tube 31, and the other end is inserted into the bearing ring 41 and slidably connected to the bearing ring 41. One end of the spring 33 abuts against the bearing ring 41, and the other end is fixedly connected to the pressure plate 32. The positioning plate 35 is rotated to drive the bearing ring 41 to move in the direction close to the pressure plate 32, thereby adjusting the initial compression state of the spring 33, but still ensuring that the position of the positioning plate 35 remains unchanged.

[0036] refer to Figure 3 and Figure 4 One end of the inner tube 34 is fixedly connected to the pressure plate 32 and penetrates the pressure plate 32, and the inner tube 34 is connected to the inside of the water supply pipe 2. The other end of the inner tube 34 is hinged to one end of the end cap 36. Two end caps 36 are provided. The two end caps 36 swing towards each other and finally become engaged. The two end caps 36 are engaged to block the end of the inner tube 34 like a hat. A through hole 352 is provided on the positioning plate 35. The through hole 352 is located at the center of the positioning plate 35. The end of the inner tube 34 together with the end cap 36 is inserted into the through hole 352 and slides into or out of the through hole 352 relative to the positioning plate 35 in a direction close to or away from the pressure plate 32. The intersection of the positioning plate 35 and the inner wall of the through hole 352 is chamfered.

[0037] refer to Figure 3 and Figure 4 A protrusion 7 is fixed on the outer wall of the head 36. When the head 36 is located in the through hole 352, the end of the protrusion 7 abuts against the inner wall of the through hole 352. The protrusion 7 is located near the hinge axis between the head 36 and the inner tube 34. Rubber pads 6 are fixed to the edges of the two heads 36 that are close to each other.

[0038] refer to Figure 3 and Figure 4 A clamping assembly 8 is provided between the nozzle 5 and the positioning plate 35. The clamping assembly 8 includes an elastic member 81 and a latch 82. The side wall edge of the positioning plate 35 away from the pressure plate 32 is in a warped shape. The latch 82 penetrates the warped edge of the positioning plate 35. The elastic member 81 is sleeved on the latch 82. The elastic member 81 pulls the latch 82 toward the center of the positioning plate 35. An annular groove 51 is provided on the outer wall of the nozzle 5. The annular groove 51 is provided along the outer wall of the nozzle 5. After the nozzle 5 is seated on the positioning plate 35, the end of the latch 82 is inserted into the annular groove 51.

[0039] The implementation principle of the high-efficiency water storage and water-saving irrigation device for garden green land in the embodiment of the present application is as follows: the water pump 12 pumps the accumulated water into the water supply pipe 2, and the accumulated water pushes the pressure plate 32 to move in the direction close to the positioning plate 35, continuously compressing the spring 33 to deform, and the pressure plate 32 drives the sealing head 36 to move in the through hole 352 through the inner tube 34, until the sealing head 36 completely passes through the through hole 352, at which time the two sealing heads 36 are flushed open by the accumulated water, that is, the two sealing heads 36 swing away from each other, and the accumulated water finally flows into the nozzle 5 and is sprayed out through the nozzle 5. The initial compression posture of the spring 33 can be adjusted by the adjustment component 4, thereby adjusting the initial water pressure resistance of the isobaric pipe joint component 3, so that the nozzles 5 at different positions of the water supply pipe 2 can still maintain the effect of opening and spraying at the same time or closing at the same time after being exposed to different water pressures, thereby ensuring uniform spraying of the garden green land.

[0040] The embodiment of the present application also discloses a method for efficient water storage and water-saving irrigation of garden green land.

[0041] The following steps are involved: S1, laying the water supply pipe 2 on the green land surrounded by the curbstones 11, and installing the isobaric pipe joint assembly 3 and the sprinkler 5; S2. The initial resistance pressure at the corresponding nozzle 5 is adjusted by adjusting the isobaric pipe joint assembly 3. The initial resistance pressure is the initial resistance force generated by the deformation of the spring 33 and the pressure plate 32. When the water pressure is greater than the initial resistance pressure, the accumulated water pushes the pressure plate 32 and finally makes the sealing head 36 extend out of the through hole 352 to be in an open state. S3, the initial resistance pressure adjusted at the nozzle 5 close to the water pump 12 is large, and the initial resistance pressure adjusted at the nozzle 5 far from the water pump 12 is relatively small, and so on, the farther from the water pump 12, the smaller the adjusted initial resistance pressure; S4, start the water pump 12 to transport the accumulated water in the water reservoir 1 to the inside of the water supply pipe 2 and pressurize it.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A highly efficient water storage and water-saving irrigation device for a garden green space, comprising a water storage tank (1), a curbstone (11), a water delivery pipe (2) and a water pump (12), wherein the water delivery pipe (2) is laid on the surface of the garden green space, the water storage tank (1) is buried underground for storing water, and the water pump (12) is fixed on the inner wall of the water storage tank (1) for pumping the accumulated water in the water storage tank (1) into the water delivery pipe (2), characterized in that: The curbstone (11) is hollow and communicates with the top of the water reservoir (1). The curbstone (11) is made of permeable concrete and the inner wall of its bottom is made of ordinary concrete. A plurality of isobaric pipe joint assemblies (3) are installed on the water supply pipe (2), and adjacent isobaric pipe joint assemblies (3) are arranged at intervals along the length direction of the water supply pipe (2). All the isobaric pipe joint assemblies (3) and the water supply pipe (2) form a water supply passage. Each of the isobaric pipe joint assemblies (3) is installed with a nozzle (5) for releasing accumulated water and an adjustment assembly (4) for adjusting the initial state of the isobaric pipe joint assembly (3). Each of the isobaric pipe joint assemblies (3) is used to adjust the water pressure at the corresponding nozzle (5).

2. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 1, characterized in that: The isobaric pipe joint assembly (3) comprises a connecting pipe (31), a pressure plate (32), a spring (33), an inner pipe (34), a positioning plate (35) and a sealing head (36); the end of the connecting pipe (31) is connected to the inside of the water supply pipe (2) to form a water supply passage; the pressure plate (32) is slidably arranged inside the connecting pipe (31); the circumferential side wall of the pressure plate (32) abuts against the inner wall of the connecting pipe (31); the positioning plate (35) is rotatably connected to the end of the connecting pipe (31) away from the water supply pipe (2); the positioning plate (35) rotates relative to the water supply pipe (2); the inner pipe (34) is located between the positioning plate (35) and the pressure plate (32); one end of the inner pipe (34) passes through the pressure plate (32) and is connected to the inside of the water supply pipe (2); the inner pipe (34) The inner tube (34) is fixedly connected to the pressure plate (32), and the other end of the inner tube (34) is hinged to the end of the inner tube (34). Two end seals (36) are provided. The two end seals (36) are buckled in a direction close to the center line of the inner tube (34) to seal the end of the inner tube (34). The two end seals (36) are swung in a direction away from the center line of the inner tube (34) to form a water supply passage between the nozzle (5) and the inside of the water supply pipe (2). The positioning plate (35) is provided with a through hole (352). The two end seals (36) are buckled in a state and are located in the through hole (352) and slide relative to the positioning plate (35) in a direction away from or close to the pressure plate (32). The spring (33) is located between the positioning plate (35) and the pressure plate (32) to push the pressure plate (32) to resist water pressure.

3. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: The connecting pipe (31) is a tee pipe, a straight pipe or an elbow.

4. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: The adjusting assembly (4) comprises a bearing ring (41) and a guide rod (42). The bearing ring (41) is located on a side of the positioning plate (35) close to the pressure plate (32) and is threadedly connected to the positioning plate (35). The guide rod (42) is located inside the connecting tube (31). One end of the guide rod (42) is fixedly connected to the inner wall of the connecting tube (31), and the other end is plug-connected to the bearing ring (41). The guide rod (42) is used to guide the bearing ring (41) to slide relative to the positioning plate (35) in a direction approaching or moving away from the pressure plate (32). One end of the spring (33) is fixedly connected to the pressure plate (32), and the other end is in contact with the bearing ring (41).

5. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 4, characterized in that: A limiting rod (351) is hingedly connected to the outer wall of the positioning plate (35), and a plug hole (311) is provided on the outer wall of the connecting tube (31). A plurality of plug holes (311) are provided, and adjacent plug holes (311) are spaced apart along the circumferential outer wall of the connecting tube (31). The end of the limiting rod (351) away from the positioning plate (35) is inserted into the corresponding plug hole (311).

6. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: Rubber pads (6) are fixed to the mutually adjacent edges of the two sealing heads (36).

7. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: A protrusion (7) is fixed on the outer wall of the sealing head (36), the end of the protrusion (7) abuts against the inner wall of the through hole (352), and the protrusion (7) is located close to the hinge axis between the sealing head (36) and the inner tube (34).

8. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: The intersection between the positioning plate (35) and the inner wall of the through hole (352) is chamfered.

9. The high-efficiency water storage and water-saving irrigation device for garden green land according to claim 2, characterized in that: The positioning plate (35) is provided with a clamping assembly (8), which is located on a side of the positioning plate (35) away from the connecting pipe (31), and is used for installing and removing the spray head (5).

10. A method for efficient water storage and water-saving irrigation of garden green land, using the efficient water storage and water-saving irrigation device for garden green land as claimed in claim 4, characterized in that: The following steps are involved: S1, laying a water supply pipe (2) on a green space surrounded by curbstones (11), and installing a isobaric pipe joint assembly (3) and a sprinkler (5); S2, adjusting the initial resistance pressure at the corresponding nozzle (5) by adjusting the isobaric pipe joint assembly (3), the initial resistance pressure being the initial resistance force generated by the deformation of the spring (33) and the pressure-bearing plate (32), and when the water pressure is greater than the initial resistance pressure, the accumulated water pushes the pressure-bearing plate (32) and finally causes the sealing head (36) to extend out of the through hole (352) to be in an open state; S3, the initial resistance pressure adjusted at the nozzle (5) close to the water pump (12) is large, and the initial resistance pressure adjusted at the nozzle (5) far from the water pump (12) is relatively small, and so on, the farther from the water pump (12), the smaller the adjusted initial resistance pressure; S4, starting the water pump (12) to transport the accumulated water in the water reservoir (1) to the inside of the water supply pipe (2) and pressurize it.

Images