A slope green plant sprinkler irrigation device and method for ecological restoration

Abstract

The present invention relates to the technical field of slope sprinkler irrigation, and discloses a slope green plant sprinkler irrigation device and method for ecological restoration, wherein the slope green plant sprinkler irrigation device for ecological restoration comprises a cement trough opened on the inclined surface of the slope, a water diversion pipe arranged in the cement trough, a water pump arranged at the starting end of the water diversion pipe, and also comprises a sprinkler irrigation unit arranged on the water diversion pipe, wherein the sprinkler irrigation unit comprises a water spraying component and a driving component arranged on the water diversion pipe; by arranging a first sprinkler head and a second sprinkler head with different radii, and a first driving ring and a second driving ring that cooperate with each other, the sprinkler irrigation device sprays water at different distances and times when spraying green plants above the slope and spraying green plants below the slope. When spraying green plants above, the spraying distance is farther and the time is longer, and when spraying green plants below, the spraying distance is shorter and the time is shorter, which can effectively avoid uneven sprinkler irrigation and the situation that water flows to the lower part of the slope under the action of gravity.

Description

Technical Field

[0001] The present invention relates to the technical field of slope irrigation, and in particular to a slope green plant sprinkler irrigation device and method for ecological restoration. Background Art

[0002] The slope green plant sprinkler irrigation device for ecological restoration is a high-efficiency irrigation technology that combines ecological restoration with soil and water conservation. It is widely used in slope greening, vegetation restoration, soil and water conservation and other fields, especially in scenarios such as mine reclamation, highway and railway slope management, and mountain vegetation restoration. The device uses sprinkler irrigation technology to provide water to plants and promote plant growth. At the same time, it can reduce soil erosion and improve the ecological environment. The basic working principle of the slope green plant sprinkler irrigation device is to transport water to the sprinkler through a pipe system, and then spray the water evenly into the vegetation root area through the sprinkler to provide the plants with the required moisture.

[0003] The existing slope sprinkler irrigation device has the following problems: when irrigating the slope surface, because the slope has a certain slope, the sprinkler head rotates evenly to spray water. Due to gravity, the water source moving downward is sprinkled at a longer distance, and the water source moving upward is sprinkled at a closer distance. This makes it so that when the green plants below the slope are fully sprinkled, some green plants above the slope are not fully sprinkled. When the sprinkler head pressure is increased so that the green plants above the slope are fully sprinkled, some water sources will exceed the green plants below the slope. This part of the excess water will cause waste. At the same time, the water source sprinkled above the slope will flow to the bottom of the slope under the action of gravity when it is not fully absorbed, resulting in insufficient water absorption by the green plants on the slope, affecting the quality of sprinkler irrigation. This situation will worsen as the slope becomes steeper. Summary of the invention

[0004] In view of the problem of uneven irrigation of green plants on a slope by a sprinkler irrigation device in the prior art, a sprinkler irrigation device and method for green plants on a slope for ecological restoration are proposed.

[0005] The present application provides a device and method for sprinkler irrigation of green plants on a slope for ecological restoration, the purpose of which is to provide a first sprinkler head and a second sprinkler head with different radii, and a first drive ring and a second drive ring that cooperate with each other, so that the sprinkler device can spray water at different distances and times when irrigating green plants above the slope and spraying green plants below the slope. When spraying green plants above, the spraying distance is farther and the time is longer, and when spraying green plants below, the spraying distance is shorter and the time is even shorter, which can effectively avoid uneven sprinkler irrigation and the situation where water flows to the bottom of the slope under the action of gravity.

[0006] The technical solution of the present invention is: a slope green plant sprinkler irrigation device for ecological restoration, comprising a cement trough opened on the slope surface, a water diversion pipe arranged in the cement trough, a return pipe arranged on the outer wall of the water diversion pipe, a water pump arranged at the beginning of the water diversion pipe, and also comprising a sprinkler irrigation unit arranged on the water diversion pipe, the sprinkler irrigation unit comprising a water spraying component and a driving component arranged on the water diversion pipe;

[0007] The water spraying component includes a connecting groove provided on the side wall of the upper end of the water diversion pipe, a connecting pipe arranged on the connecting groove, a sleeve pipe arranged on the outer wall of the connecting pipe, a pressure pipe arranged on the upper end of the sleeve pipe, a bearing arranged on the outer wall of the pressure pipe, a water spraying pipe arranged on the outer ring of the bearing, and a first water spraying head and a second water spraying head provided on the outer wall of the same side of the water spraying pipe;

[0008] The end face radius of the pressurized pipe is smaller than the end face radius of the water spray pipe and the sleeve pipe. The first water spray head is located directly below the second water spray head. A threaded strip is arranged on the outer wall of the connecting pipe. A threaded groove matching the threaded strip is formed on the inner ring of the sleeve pipe. The sleeve pipe is arranged on the outer wall of the connecting pipe through the mutual cooperation between the threaded groove and the threaded strip.

[0009] Furthermore, one end of the first water spray head and the second water spray head are both provided with inclined surfaces in the same direction, and a first water spray hole and a second water spray hole are respectively provided on the two inclined surfaces.

[0010] Furthermore, the radius of the first water spray hole is greater than the radius of the second water spray hole.

[0011] Furthermore, the driving component includes a mounting plate arranged on the outer wall of the pressurized pipe, a first driving ring arranged on the mounting plate, a second driving ring arranged on the upper side of the first driving ring, and an impact plate arranged on the inner walls of the first driving ring and the second driving ring. The end faces of the first driving ring and the second driving ring are semicircular in shape, and the second driving ring is located above the first driving ring. The end faces of the first driving ring and the second driving ring are circular in shape, and a reflux assembly is arranged on the mounting plate.

[0012] Furthermore, the height of the first driving ring in the vertical direction relative to the upper side of the mounting plate is L, the height of the second driving ring in the vertical direction relative to the upper side of the mounting plate is H, the diameter of the first water spray head is X1, the diameter of the second water spray head is X2, the height of the first water spray head is within the height range of the first driving ring, the height of the second water spray head is within the height range of the second driving ring, and the height of the second water spray head is higher than the height of the first driving ring.

[0013] Furthermore, the reflux assembly includes a reflux sleeve arranged at the lower end of the mounting plate, a filter plate arranged at the upper end of the reflux sleeve, a connecting pipe arranged between the reflux sleeve and the reflux pipe, and a water retaining ring arranged at the upper end of the mounting plate, and the reflux sleeve is located directly below the second drive ring.

[0014] Furthermore, a method for spraying green plants on slopes for ecological restoration comprises the following steps:

[0015] S1: Install the sleeve tube thread on the outer wall of the connecting pipe, and make the first drive ring face the direction of the higher slope surface, and the second drive ring face the direction of the lower slope surface;

[0016] S2: Turn on the water pump, which pressurizes the water source and delivers it to the water pipe;

[0017] S3: water source enters the water spray pipe through the pressure pipe and is sprayed out through the first water spray head and the second water spray head;

[0018] S4: When spraying water in the direction of a higher slope, the second water spray head sprays water, and the first water spray head drives the water spray pipe to rotate relatively slowly;

[0019] S5: When spraying water in the lower direction of the slope, the first sprinkler head sprays water, and the second sprinkler head drives the sprinkler pipe to rotate relatively quickly to irrigate the green plants on the slope.

[0020] Furthermore, the water source used to drive the water spray pipe to rotate flows into the reflux sleeve under the action of gravity to be collected and reused.

[0021] Beneficial effects of the present invention:

[0022] 1. By setting the first sprinkler head and the second sprinkler head, the sprinkler irrigation device sprinkles the green plants below the slope through the first sprinkler head, and sprinkles the green plants above the slope through the second sprinkler head. The aperture of the first sprinkler head's spray hole 1 is larger, so that the pressure of the water source is smaller, and the spraying distance is shorter when the sprinkler is below the slope. The aperture of the second sprinkler head's spray hole 2 is smaller, so that the pressure of the water source is larger, and the spraying distance is longer when the sprinkler is above the slope, so that the green plants at all parts of the slope can be irrigated.

[0023] 2. By setting the first driving ring and the second driving ring, when the first sprinkler head sprinkles the green plants below the slope, the second sprinkler head cooperates with the second driving ring, the pressure of the water sprayed by the second sprinkler head is relatively large, and then the sprinkler pipe is driven to rotate faster through the second driving ring, so that the time for sprinkler irrigation of the green plants below the slope is shorter and the amount of water for sprinkler irrigation is less. When the second sprinkler head sprinkles the green plants above the slope, the water pressure of the first sprinkler head is relatively small, and the sprinkler pipe is driven to rotate slowly by cooperating with the first driving ring, so that the second sprinkler head sprinkles the green plants above the slope for a longer time and more water is used for sprinkler irrigation.

[0024] 3. By setting up a reflux component, the reflux sleeve can collect the water source used as the driving source, and the collected water source flows into the reflux pipe through the connecting pipe. The reflux pipe can store the water source for the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention;

[0026] Figure 2 It is a schematic diagram of the water diversion pipe structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the sprinkler irrigation unit of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the water spray component of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the cross-section structure;

[0030] Figure 6 For the present invention Figure 3 Schematic diagram of partial decomposition structure;

[0031] Figure 7 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0032] Figure 8 This is a dimensional illustration of the present invention.

[0033] In the figure:

[0034] 1. Cement tank; 2. Water diversion pipe; 3. Return pipe; 4. Connecting pipe; 5. Socket pipe; 6. Pressurized pipe; 7. Bearing; 8. Water spray pipe; 9. First water spray head; 10. Second water spray head; 11. Water spray hole 1; 12. Water spray hole 2; 13. Mounting plate; 14. First drive ring; 15. Second drive ring; 16. Impact plate; 17. Return sleeve; 18. Filter plate; 19. Connecting pipe; 20. Water retaining ring. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] Example 1, reference Figure 1-Figure 3, which is the first embodiment of the present invention, provides a slope green plant sprinkler irrigation device for ecological restoration, including a cement trough 1 opened on the inclined surface of the slope, a water diversion pipe 2 laid and installed in the cement trough 1, a return pipe 3 fixedly installed on the outer wall of the water diversion pipe 2, a water pump (not shown in the figure) fixedly installed at the starting end of the water diversion pipe 2, and also includes a sprinkler irrigation unit installed on the water diversion pipe 2, and the sprinkler irrigation unit includes a water spraying component and a driving component installed on the water diversion pipe 2.

[0037] The water spraying components include a connecting groove opened on the side wall of the upper end of the water diversion pipe 2, a connecting pipe 4 fixedly installed on the connecting groove, a sleeve pipe 5 threadedly installed on the outer wall of the connecting pipe 4, a pressurizing pipe 6 fixedly installed on the upper end of the sleeve pipe 5, a bearing 7 fixedly installed on the outer wall of the pressurizing pipe 6, a water spraying pipe 8 fixedly installed on the outer ring of the bearing 7, and a first water spraying head 9 and a second water spraying head 10 opened on the outer wall on the same side of the water spraying pipe 8.

[0038] The end face radius of the pressurizing pipe 6 is smaller than the end face radius of the water spray pipe 8 and the sleeve pipe 5. The first water spray head 9 is located directly below the second water spray head 10. A threaded strip is provided on the outer wall of the connecting pipe 4. The inner circle of the sleeve pipe 5 is provided with a threaded groove matching the threaded strip. The sleeve pipe 5 is arranged on the outer wall of the connecting pipe 4 through the mutual cooperation between the threaded groove and the threaded strip.

[0039] Specifically, when the irrigation device is irrigating the green plants on the slope, because the slope has a certain slope, when the ordinary sprinkler device is irrigating the green plants on the slope, the pressure of the water sprayed by the nozzle on all sides is the same, which makes the sprayed water uneven under the action of gravity, that is, the spraying distance of the water when spraying the slope below is greater than the spraying distance above the slope. This makes it impossible to fully cover the green plants above the slope when the staff fully covers the green plants below the slope, resulting in uneven spraying. When the green plants above the slope are fully covered, the coverage of the lower slope will exceed the range of the green plants below, and the excess water source will cause waste, increasing the cost of sprinkler irrigation. Therefore, by arranging the first water sprinkler head 9 and the second water sprinkler head 10, when the sprinkler irrigation device rotates to irrigate the green plants below the slope, the first water sprinkler head 9 is used. Since the aperture of the first water sprinkler head 9 is smaller, the water source distance sprayed by the first water sprinkler head 9 is shorter. The shorter water source spraying enables the water source to irrigate the green plants below the slope under the action of gravity. When the sprinkler irrigation device irrigates the green plants above the slope, it is converted to the second water sprinkler head 10 to irrigate the green plants above the slope. The aperture of the second water sprinkler head 10 is smaller, so that the pressure of the sprayed water source is larger and the spraying distance is larger, so that the green plants above the slope can be completely covered by sprinkler irrigation.

[0040] Reference Figure 4-Figure 6 ,as well as Figure 8, one end of the first water spray head 9 and the second water spray head 10 are both provided with inclined surfaces in the same direction, and a water spray hole 11 and a water spray hole 2 12 are respectively provided on the two inclined surfaces. The radius of the water spray hole 11 is greater than the radius of the water spray hole 2 12. The driving component includes a mounting plate 13 fixedly mounted on the outer wall of the pressurized pipe 6, a first driving ring 14 fixedly mounted on the mounting plate 13, a second driving ring 15 fixedly mounted on the upper side of the first driving ring 14, and a punching plate 16 fixedly mounted on the inner walls of the first driving ring 14 and the second driving ring 15. The end faces of the first driving ring 14 and the second driving ring 15 are semicircular in shape, and the second driving ring 15 is located above the first driving ring 14. The end faces of the first driving ring 14 and the second driving ring 15 are circular in shape, and a reflux component is provided on the mounting plate 13.

[0041] The height of the first driving ring 14 in the vertical direction relative to the upper side of the mounting plate 13 is L, the height of the second driving ring 15 in the vertical direction relative to the upper side of the mounting plate 13 is H, the diameter of the first water spray head 9 is X1, the diameter of the second water spray head 10 is X2, the height of the first water spray head 9 is within the height range of the first driving ring 14, the height of the second water spray head 10 is within the height range of the second driving ring 15, and the height of the second water spray head 10 is higher than the height of the first driving ring 14.

[0042] Specifically, the water spraying component can solve the problem that the sprinkler device can completely cover the upper and lower parts of the slope. However, because the slope has a certain slope, when the sprinkler device is irrigating the green plants above the slope, the upper slope does not completely absorb the water source sprayed, so that the unused water source flows to the lower part of the slope under the action of gravity. This makes it so that when the slope is irrigated, there are more water sources above the slope than below the slope (the solution is that the irrigation device sprays more water sources above the slope than below the slope, thereby making up for the difference caused by the flow of water). Therefore, by setting a driving component, the driving component drives the rotation of the water spray pipe 8 through the first driving ring 14 and the second driving ring 15, through the cooperation of the sprayed water and the corresponding impact plate 16, and the generated recoil force, and at the same time, the spraying time of the first water spray head 9 and the second water spray head 10 is controlled by the magnitude of the recoil force;

[0043] When the first sprinkler head 9 is irrigating the green plants below the slope, the radius of the spray hole 11 on the first sprinkler head 9 is relatively large, so that the pressure of the water sprayed from the spray hole 11 is relatively small, and thus the distance of the spraying is relatively small. At the same time, with the assistance of gravity, the green plants below the slope are completely covered. The second sprinkler head 10 sprays water at the same time. Since the aperture of the spray hole 12 of the second sprinkler head 10 is relatively small, the pressure of the sprayed water source is relatively large. The water source sprayed by the second sprinkler head 10 collides with the impact plate 16 on the second drive ring 15, and the generated recoil force drives the sprinkler pipe 8, thereby driving the sprinkler pipe 8 to rotate relatively quickly. The relatively fast rotation can reduce the spraying time of the first sprinkler head 9 on the slope below, thereby reducing the amount of sprinkler water.

[0044] When the second sprinkler head 10 is sprinkling water on the green plants above the slope, the radius of the water spray hole 12 on the second sprinkler head 10 is small, and the pressure of the sprayed water source is large, so the sprinkler distance is large, and at the same time, under the reaction of gravity, the green plants above the slope can be completely covered. Similarly, when the second sprinkler head 10 is sprinkling water, the first sprinkler head 9 cooperates with the first drive ring 14 to drive the sprinkler pipe 8 to rotate relatively slowly. The relatively slow rotation can increase the sprinkling time of the second sprinkler head 10 on the upper slope, and then increase the amount of sprinkler water. Therefore, the distance and water volume of the sprinkler irrigation device on the upper slope surface are greater than the distance and water volume of the sprinkler irrigation on the lower slope surface, so that the sprinkler irrigation device can better irrigate the green plants on the slope.

[0045] Example 2, reference Figure 3 as well as Figure 6-Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the reflux assembly includes a reflux sleeve 17 fixedly installed at the lower end of the mounting plate 13, a filter plate 18 fixedly installed at the upper end of the reflux sleeve 17, a connecting pipe 19 fixedly installed between the reflux sleeve 17 and the reflux pipe 3, and a water retaining ring 20 fixedly installed at the upper end of the mounting plate 13. The reflux sleeve 17 is located directly below the second drive ring 15.

[0046] Specifically, the reflux component is used to recover water that has not been sprinkled. When the sprinkler device is irrigating the slope, the water sprayed by the first sprinkler head 9 and the second sprinkler head 10 intermittently acts as a driving source, which makes the water source serving as a driving source not act on the sprinkler. Therefore, when the water source serving as a driving source acts on the impact plate 16, these water sources will flow into the reflux sleeve 17 under the action of gravity, and the water source flowing into the reflux sleeve 17 will flow through the filter plate 18 for filtration. The water source flowing into the reflux sleeve 17 enters the reflux pipe 3 through the connecting pipe 19 for collection, and provides water for subsequent sprinkler irrigation.

[0047] The remaining structures are the same as those of Example 1.

[0048] Based on Examples 1-2, a method for spraying green plants on slopes for ecological restoration is as follows:

[0049] S1: Thread the sleeve 5 onto the outer wall of the connecting pipe 4, and make the first drive ring 14 face the higher slope, and the second drive ring 15 face the lower slope.

[0050] S2: Turn on the water pump, which pressurizes the water source and transports the water source to the water diversion pipe 2.

[0051] S3: When the first sprinkler head 9 is irrigating the green plants below the slope, the radius of the spray hole 11 on the first sprinkler head 9 is relatively large, so that the pressure of water sprayed from the spray hole 11 is relatively small, and thus the spraying distance is relatively small. At the same time, with the assistance of gravity, the green plants below the slope are completely covered, and the second sprinkler head 10 sprays water at the same time. Because the aperture of the spray hole 12 of the second sprinkler head 10 is relatively small, the pressure of the sprayed water is relatively large. The water sprayed by the second sprinkler head 10 collides with the impact plate 16 on the second drive ring 15, and the generated recoil force drives the sprinkler pipe 8, thereby driving the sprinkler pipe 8 to rotate relatively quickly. The relatively fast rotation can reduce the spraying time of the first sprinkler head 9 on the lower slope, thereby reducing the amount of sprinkler water.

[0052] S4: When the second sprinkler head 10 is sprinkling water on the green plants above the slope, the radius of the water spray hole 12 on the second sprinkler head 10 is small, and the pressure of the sprayed water source is large, so the sprinkler distance is large, and at the same time, under the reaction of gravity, the green plants above the slope can be completely covered. Similarly, when the second sprinkler head 10 is sprinkling water, the first sprinkler head 9 cooperates with the first drive ring 14 to drive the sprinkler pipe 8 to rotate relatively slowly. The relatively slow rotation can increase the second sprinkler head 10 The time of sprinkling the upper slope surface, thereby increasing the amount of sprinkler water, and then the distance and water volume of the sprinkler irrigation device on the upper slope surface are greater than the distance and water volume of the sprinkler irrigation on the lower slope surface, so that the sprinkler irrigation device can better irrigate the green plants on the slope.

[0053] S5: Because the water sprayed from the first sprinkler head 9 and the second sprinkler head 10 intermittently acts as a driving source, the water source serving as a driving source is not used for sprinkler irrigation. Therefore, when the water source serving as a driving source acts on the impact plate 16, these water sources will flow into the return sleeve 17 under the action of gravity, and the water source flowing into the return sleeve 17 will flow through the filter plate 18 for filtration. The water source flowing into the return sleeve 17 enters the return pipe 3 through the connecting pipe 19 for collection and provides water for subsequent sprinkler irrigation. Therefore, the water source used to drive the sprinkler pipe 8 to rotate flows into the return sleeve 17 under the action of gravity for collection and secondary utilization.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A slope greening sprinkler irrigation device for ecological restoration, comprising a cement trough (1) provided on the slope surface, a water diversion pipe (2) arranged in the cement trough (1), a return pipe (3) arranged on the outer wall of the water diversion pipe (2), and a water pump arranged at the beginning of the water diversion pipe (2), characterized in that: It also includes a sprinkler irrigation unit arranged on the water diversion pipe (2), the sprinkler irrigation unit comprising a water spraying component and a driving component arranged on the water diversion pipe (2); The water spray component comprises a connecting groove formed on the side wall of the upper end of the water diversion pipe (2), a connecting pipe (4) arranged on the connecting groove, a sleeve pipe (5) arranged on the outer wall of the connecting pipe (4), a pressure pipe (6) arranged on the upper end of the sleeve pipe (5), a bearing (7) arranged on the outer wall of the pressure pipe (6), a water spray pipe (8) arranged on the outer ring of the bearing (7), and a first water spray head (9) and a second water spray head (10) formed on the outer wall of the same side of the water spray pipe (8); The end face radius of the pressure pipe (6) is smaller than the end face radius of the water spray pipe (8) and the sleeve pipe (5); the first water spray head (9) is located directly below the second water spray head (10); a thread strip is provided on the outer wall of the connecting pipe (4); a thread groove matching the thread strip is provided on the inner ring of the sleeve pipe (5); the sleeve pipe (5) is provided on the outer wall of the connecting pipe (4) through the mutual cooperation between the thread groove and the thread strip; The driving component comprises a mounting plate (13) arranged on the outer wall of the pressure tube (6), a first driving ring (14) arranged on the mounting plate (13), a second driving ring (15) arranged on the upper side of the first driving ring (14), and a force plate (16) arranged on the inner walls of the first driving ring (14) and the second driving ring (15), the end faces of the first driving ring (14) and the second driving ring (15) are semicircular in shape, and the second driving ring (15) is located above the first driving ring (14), the end faces of the first driving ring (14) and the second driving ring (15) are circular in shape, and a reflux component is arranged on the mounting plate (13); The height of the first drive ring (14) relative to the upper side of the mounting plate (13) in the vertical direction is L, the height of the second drive ring (15) relative to the upper side of the mounting plate (13) in the vertical direction is H, the diameter of the first water spray head (9) is X1, the diameter of the second water spray head (10) is X2, the height of the first water spray head (9) is within the height range of the first drive ring (14), the height of the second water spray head (10) is within the height range of the second drive ring (15), and the height of the second water spray head (10) is higher than the height of the first drive ring (14).

2. The slope greening sprinkler irrigation device for ecological restoration according to claim 1, characterized in that: One end of the first water spray head (9) and the second water spray head (10) are both provided with inclined surfaces in the same direction, and a first water spray hole (11) and a second water spray hole (12) are respectively provided on the two inclined surfaces.

3. The slope greening sprinkler irrigation device for ecological restoration according to claim 2 is characterized in that: The radius of the water spray hole 1 (11) is greater than the radius of the water spray hole 2 (12).

4. The slope greening sprinkler irrigation device for ecological restoration according to claim 1, characterized in that: The reflux assembly comprises a reflux sleeve (17) arranged at the lower end of the mounting plate (13), a filter plate (18) arranged at the upper end of the reflux sleeve (17), a connecting pipe (19) arranged between the reflux sleeve (17) and the reflux pipe (3), and a water retaining ring (20) arranged at the upper end of the mounting plate (13); the reflux sleeve (17) is located directly below the second drive ring (15).

5. A method for spraying green plants on slopes for ecological restoration, using the device for spraying green plants on slopes for ecological restoration as claimed in claim 4, characterized in that: The steps include: S1: threadably mounting the sleeve tube (5) on the outer wall of the connecting tube (4), with the first drive ring (14) facing the higher slope and the second drive ring (15) facing the lower slope; S2: Turn on the water pump, which pressurizes the water source and delivers the water source to the water diversion pipe (2); S3: water enters the water spray pipe (8) through the pressure pipe (6) and is sprayed out through the first water spray head (9) and the second water spray head (10); S4: When spraying water in the direction of a higher slope, the second water spray head (10) sprays water, and the first water spray head (9) drives the water spray pipe (8) to rotate relatively slowly; S5: When spraying water in the lower direction of the slope, the first water spray head (9) sprays water, and the second water spray head (10) drives the water spray pipe (8) to rotate relatively quickly to irrigate the green plants on the slope.

6. A method for spraying green plants on slopes for ecological restoration according to claim 5, characterized in that: The following steps are involved: The water source used to drive the water spray pipe (8) to rotate flows into the return sleeve (17) under the action of gravity to be collected and reused.

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