A garden irrigation spraying device for municipal engineering

Abstract

The present invention relates to the technical field of garden fertilization, and in particular to a garden irrigation and spraying device for municipal engineering, comprising a mobile base, a transport tank, a mounting frame, a rotating shaft, a rotating tube, and a nozzle, etc. The top of the mobile base is connected to the transport tank, the mounting frame is connected to a rotating shaft, a torsion spring is provided between the rotating shaft and the mounting frame, a rotating tube is connected to the rotating shaft, and the bottom of the rotating tube is connected to the nozzle at even intervals. The present invention drives a push plate and an inclined plate to move upward through an electric slide rail, and unfolds the rotating tube 1 and the rotating tube 2. The spraying range can be adjusted according to the width of the green belt, and the application range is wider. The fertilizer can be sprayed through the nozzle 1 and the nozzle 2 through a water pump to irrigate and fertilize the garden green belt.

Description

Technical Field

[0001] The present invention relates to the technical field of garden fertilization, and particularly to a garden irrigation and spraying device for municipal engineering. Background Art

[0002] In the maintenance and management of municipal garden greening, in order to provide sufficient nutrients for plants and promote the healthy growth of plants, it is necessary to select appropriate nutrient fertilizers and irrigate and fertilize the green belt.

[0003] The current fertilization device generally consists of multiple rows of horizontally arranged nozzles. The nozzles face the green belt to irrigate and fertilize the green belt, and then the nozzles move to fertilize the entire green belt. However, the widths of the green belts are inconsistent, and the spraying range of the nozzles is limited. When the width of the green belt is relatively wide, the nozzles cannot be adjusted, resulting in fertilizers not being able to be sprayed onto the green belt far from the nozzles, and the applicable range is small. Summary of the Invention

[0004] In order to overcome the drawback that the nozzles cannot be adjusted, resulting in fertilizers not being able to be sprayed onto the green belt far from the nozzles and the small applicable range, the present invention provides a garden irrigation and spraying device for municipal engineering.

[0005] Technical Solution: A garden irrigation and spraying device for municipal engineering includes a moving base, a transport tank, a mounting frame, a first rotating shaft, a first rotating pipe, a first nozzle, a mounting block, a second rotating shaft, a connecting block, a second rotating pipe, a second nozzle, a connecting pipe, a valve, a deployment mechanism, a control mechanism, and a suction mechanism. The transport tank is connected to the top of the moving base, the mounting frame is connected to the transport tank, the first rotating shaft is rotatably connected to the mounting frame, a first torsion spring is provided between the first rotating shaft and the mounting frame, the first rotating pipe is connected to the first rotating shaft, the first nozzles are uniformly spaced and communicated with the bottom of the first rotating pipe, the mounting block is connected to the first rotating pipe, the second rotating shaft is rotatably connected to the mounting block, a second torsion spring is provided between the second rotating shaft and the mounting block, the connecting block is connected to the second rotating shaft, the second rotating pipe is connected to the connecting block, the second nozzles are uniformly spaced and communicated with the top of the second rotating pipe, the second rotating pipe and the first rotating pipe are communicated through the connecting pipe, four valves are uniformly spaced and installed on the second rotating pipe, the deployment mechanism is used to deploy the first rotating pipe and the second rotating pipe, the control mechanism is used to control the opening and closing of the valves, and the suction mechanism is used to suck the fertilizer into the first rotating pipe.

[0006] As a further preferred solution, the unfolding mechanism includes a first guide rod, a sliding plate, a first spring, a moving plate, a first rack, a first gear, a contact block, an electric slide rail, a push plate, an inclined plate and a locking component. Two first guide rods are connected to the first rotating tube. A sliding plate is slidably connected to the two first guide rods. A first spring is connected between the first rotating tube and the sliding plate. A moving plate is connected to the top of the sliding plate. A first rack is connected to the bottom of the moving plate. A first gear is connected to the second rotating shaft through a one-way clutch. A contact block is connected to the first rotating shaft. An electric slide rail is connected to the top of the moving base. A push plate is connected to the slider of the electric slide rail. An inclined plate is connected to the push plate. The push plate is used to push the contact block to rotate the contact block, and the contact block drives the first rotating shaft and the first rotating tube to rotate to unfold the first rotating tube. The inclined plate is used to push the moving plate to move the moving plate forward. The moving plate drives the first rack to move forward. During the forward movement of the first rack, it meshes with the first gear and drives the first gear to rotate. The first gear drives the second rotating shaft, the connecting block and the second rotating tube to rotate to unfold the second rotating tube. The locking component is used to lock the second rotating shaft to prevent the second rotating tube from resetting.

[0007] As a further preferred solution, the locking component includes a telescopic rod and a second spring. A locking hole is formed in the second rotating shaft. A telescopic rod is connected to the moving plate. A second spring is arranged inside the telescopic rod. The telescopic rod can move forward and insert into the locking hole to lock the second rotating shaft.

[0008] As a further preferred solution, the control mechanism includes a second guide rod, a sliding plate, a third spring, a sliding block, a second rack and a second gear. Two second guide rods are connected to the second rotating tube. A sliding plate and a sliding block are slidably connected to the two second guide rods. The sliding block is connected to the sliding plate. A convex block protruding downward is arranged at the bottom of the sliding block. When the second rotating tube is not unfolded, the convex block on the sliding block faces downward, and the moving plate will not contact the sliding block during the forward movement. A third spring is connected between the second rotating tube and the sliding plate. Four second racks are evenly spaced and connected to the top of the sliding plate. Second gears are connected to the valves. After the second rotating tube is unfolded, the convex block on the sliding block faces upward, and the moving plate will contact the convex block on the sliding block during the forward movement. Then the moving plate pushes the sliding block to move forward. The sliding block drives the second rack to move forward. During the forward movement of the second rack, it meshes with the second gear and drives the second gear to rotate. The second gear drives the valve to rotate to open the valve.

[0009] As a further preferred solution, the extraction mechanism includes a water pump, a liquid inlet pipe, a liquid outlet pipe and a hose. A water pump is connected to the moving base. A liquid inlet pipe is connected to the water inlet end of the water pump. The upper end of the liquid inlet pipe is connected to the bottom of the transportation tank, and the transportation tank is communicated with the liquid inlet pipe. A liquid outlet pipe is connected to the water outlet end of the water pump. A hose is connected to the liquid outlet pipe. The hose is connected to the first rotating tube.

[0010] As a further preferred solution, it further includes a stirring mechanism, which includes a rotating rod, a stirring frame and a driving motor. The rotating rod is rotatably connected inside the transportation tank, and a stirring frame for stirring the fertilizer inside the transportation tank is connected to the rotating rod. A driving motor is connected to the transportation tank, and the output shaft of the driving motor is connected to the upper end of the rotating rod.

[0011] As a further preferred solution, it further includes a support block, and a support block for supporting the connecting block is connected to the mounting block.

[0012] As a further preferred solution, a groove is provided on the moving plate. When the second rotating tube is unfolded, the sliding block will pass through this groove, so that the sliding block will not collide with the moving plate.

[0013] The beneficial effects are as follows: 1. In the present invention, the electric slide rail drives the push plate and the inclined plate to move upward, unfolding the first rotating tube and the second rotating tube. The spraying range can be adjusted according to the width of the green belt, and the application range is wider. Through the water pump, the fertilizer can be sprayed out through the first nozzle and the second nozzle to irrigate and fertilize the landscaping belt.

[0014] 2. The output shaft of the driving motor can drive the stirring frame to rotate, and the stirring frame can stir the fertilizer in the transportation tank to avoid fertilizer precipitation and ensure the effect of the fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows the three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 Shows the state diagram when the first rotating tube and the second rotating tube of the present invention are retracted.

[0017] Figure 3 Shows the state diagram after the first rotating tube and the second rotating tube of the present invention are unfolded.

[0018] Figure 4 Shows the three-dimensional structural schematic diagram of the mounting block, the second rotating shaft and the connecting block of the present invention.

[0019] Figure 5 Shows the state diagram after the second rotating tube of the present invention is unfolded.

[0020] Figure 6 Shows the three-dimensional structural schematic diagram of the unfolding mechanism of the present invention.

[0021] Figure 7 Shows the three-dimensional structural schematic diagram of the first guide rod, the sliding plate, the first spring and the contact block of the present invention.

[0022] Figure 8 Shows the three-dimensional structural schematic diagram of the first rack and the first gear of the present invention.

[0023] Figure 9Shows a schematic three-dimensional structure diagram of the card hole and the telescopic rod of the present invention.

[0024] Figure 10 Shows a cross-sectional view of the telescopic rod of the present invention.

[0025] Figure 11 Shows a schematic three-dimensional structure diagram of the control mechanism of the present invention.

[0026] Figure 12 Shows a schematic three-dimensional structure diagram of the sliding plate and the sliding block of the present invention.

[0027] Figure 13 Shows a schematic diagram of the sliding block when the second rotating tube of the present invention is not unfolded.

[0028] Figure 14 Shows a schematic diagram of the sliding block after the second rotating tube of the present invention is unfolded.

[0029] Figure 15 Shows a schematic diagram of the control mechanism after the second rotating tube of the present invention is unfolded.

[0030] Figure 16 Shows a schematic three-dimensional structure diagram of the extraction mechanism of the present invention.

[0031] Figure 17 Shows a schematic three-dimensional structure diagram of the water pump and the liquid inlet pipe of the present invention.

[0032] Figure 18 Shows a schematic three-dimensional structure diagram of the stirring mechanism of the present invention.

[0033] Reference numerals in the drawings: 1 - moving base, 2 - transport tank, 3 - mounting bracket, 4 - first rotating shaft, 6 - first rotating tube, 7 - first nozzle, 8 - mounting block, 9 - second rotating shaft, 11 - connecting block, 12 - second rotating tube, 13 - second nozzle, 14 - connecting pipe, 15 - valve, 16 - first guide rod, 17 - sliding plate, 18 - first spring, 19 - moving plate, 20 - first rack, 21 - first gear, 22 - contact block, 23 - electric slide rail, 24 - pushing plate, 25 - inclined plate, 26 - card hole, 27 - telescopic rod, 28 - second spring, 29 - second guide rod, 30 - sliding plate, 31 - third spring, 32 - sliding block, 33 - second rack, 34 - second gear, 35 - water pump, 36 - liquid inlet pipe, 37 - liquid outlet pipe, 38 - hose, 39 - rotating rod, 40 - stirring frame, 41 - drive motor, 42 - support block. Detailed implementation manners

[0034] The following further describes the present invention in detail in conjunction with the accompanying drawings and specific implementation manners, but does not limit the protection scope and application scope of the present invention.

[0035] Embodiment 1: Refer to Figures 1-17, a garden irrigation and spraying device for municipal engineering, comprising a mobile base 1, a transport tank 2, a mounting frame 3, a first rotating shaft 4, a first rotating pipe 6, a first nozzle 7, a mounting block 8, a second rotating shaft 9, a connecting block 11, a second rotating pipe 12, a second nozzle 13, a connecting pipe 14, a valve 15, an unfolding mechanism, a control mechanism and a suction mechanism. The rear side of the top of the mobile base 1 is bolted with the transport tank 2. The middle part of the front side of the transport tank 2 is bolted with the mounting frame 3. The upper part of the mounting frame 3 is rotatably connected with the first rotating shaft 4. A first torsion spring is arranged between the first rotating shaft 4 and the mounting frame 3. The middle part of the first rotating shaft 4 is connected with the first rotating pipe 6. The bottom of the first rotating pipe 6 is evenly spaced and communicated with the first nozzles 7. The front end of the first rotating pipe 6 is connected with the mounting block 8. The upper part of the mounting block 8 is rotatably connected with the second rotating shaft 9. A second torsion spring is arranged between the second rotating shaft 9 and the mounting block 8. The second rotating shaft 9 is connected with the connecting block 11. The connecting block 11 is connected with the second rotating pipe 12. The top of the second rotating pipe 12 is evenly spaced and communicated with the second nozzles 13. A connecting pipe 14 is connected between the front ends of the second rotating pipe 12 and the first rotating pipe 6. Four valves 15 are evenly spaced and installed on the second rotating pipe 12. The unfolding mechanism is used to unfold the first rotating pipe 6 and the second rotating pipe 12. The control mechanism is used to control the opening and closing of the valves 15. The suction mechanism is used to suck the fertilizer into the first rotating pipe 6.

[0036] Refer to Figures 6-10 , the unfolding mechanism includes a first guide rod 16, a sliding plate 17, a first spring 18, a moving plate 19, a first rack 20, a first gear 21, a contact block 22, an electric slide rail 23, a push plate 24, an inclined plate 25 and a clamping component. Both the left and right sides of the first rotating pipe 6 are connected with the first guide rods 16. A sliding plate 17 is slidably connected to the two first guide rods 16. The first guide rods 16 are sleeved with the first springs 18. The two ends of the first springs 18 are respectively connected with the first rotating pipe 6 and the sliding plate 17. The top of the sliding plate 17 is connected with the moving plate 19. The front side of the bottom of the moving plate 19 is connected with the first rack 20. The right part of the second rotating shaft 9 is connected with the first gear 21 through a one-way clutch. The right part of the first rotating shaft 4 is connected with the contact block 22. The middle of the front side of the top of the mobile base 1 is bolted with the electric slide rail 23. The top of the slider of the electric slide rail 23 is connected with the push plate 24. The upper part of the right side of the push plate 24 is connected with the inclined plate 25. The clamping component is used to clamp the second rotating shaft 9 so that the second rotating pipe 12 cannot reset.

[0037] Refer to Figure 9 and Figure 10 , the clamping component includes a telescopic rod 27 and a second spring 28. A clamping hole 26 is opened in the right part of the second rotating shaft 9. The front side of the bottom of the moving plate 19 is connected with the telescopic rod 27. A second spring 28 is arranged inside the telescopic rod 27.

[0038] Refer to Figures 11-15, the control mechanism includes a second guide rod 29, a sliding plate 30, a third spring 31, a sliding block 32, a second rack 33 and a second gear 34. Two second guide rods 29 are connected to the left side of the second rotating tube 12. A sliding plate 30 and a sliding block 32 are slidably connected to the two second guide rods 29 together. The sliding block 32 is connected to the sliding plate 30. A groove is provided on the left side of the moving plate 19. When the second rotating tube 12 is unfolded, the sliding block 32 will pass through this groove, so that the sliding block 32 will not collide with the moving plate 19. A convex block protruding downward is provided at the bottom of the sliding block 32. The third spring 31 is sleeved on each of the second guide rods 29. The two ends of the third spring 31 are respectively connected to the second rotating tube 12 and the sliding plate 30. Four second racks 33 are evenly spaced and connected to the top of the sliding plate 30. Second gears 34 are connected to the valves 15 by keys. The distance between two adjacent second gears 34 is greater than the distance between two adjacent second racks 33.

[0039] Refer to Figure 16 and Figure 17 , the extraction mechanism includes a water pump 35, a liquid inlet pipe 36, a liquid outlet pipe 37 and a hose 38. The water pump 35 is connected to the top of the moving base 1 by bolts. The liquid inlet pipe 36 is connected to the water inlet end of the water pump 35. The upper end of the liquid inlet pipe 36 is connected to the middle of the bottom of the transportation tank 2, and the transportation tank 2 is communicated with the liquid inlet pipe 36. The liquid outlet pipe 37 is connected to the water outlet end of the water pump 35. The upper end of the liquid outlet pipe 37 is connected to the hose 38. The front end of the hose 38 is connected to the rear end of the first rotating tube 6.

[0040] Refer to Figure 5 , it further includes a support block 42. The support block 42 is connected to the lower part of the front side of the mounting block 8.

[0041] The staff pour the fertilizer into the transport tank 2, and then control the electric slide rail 23 to drive the push plate 24 and the inclined plate 25 to move upward. The push plate 24 pushes the contact block 22, causing the contact block 22 to rotate. The contact block 22 drives the first rotating shaft 4 to rotate, and the first rotating shaft 4 drives the first rotating tube 6 to rotate upward. The first rotating tube 6 rotates 90 degrees to unfold the first rotating tube 6, and the first torsion spring deforms. If the width of the green belt is relatively wide, resulting in the first nozzle 7 being unable to fully cover it, the electric slide rail 23 can be controlled to continue driving the push plate 24 and the inclined plate 25 to move upward. At this time, the push plate 24 blocks the contact block 22, making the contact block 22 unable to reset. Subsequently, the inclined plate 25 will contact the moving plate 19 and push the moving plate 19 forward. When the second rotating tube 12 is not unfolded, the convex block on the sliding block 32 faces downward, so the forward movement of the moving plate 19 will not collide with the sliding block 32. The moving plate 19 drives the sliding plate 17, the first rack 20, and the telescopic rod 27 to move forward, and the first spring 18 is compressed. When the first rack 20 moves forward and meshes with the first gear 21, the first rack 20 drives the first gear 21 to rotate. The first gear 21 drives the second rotating shaft 9 and the connecting block 11 to rotate, and the second torsion spring deforms. The connecting block 11 drives the second rotating tube 12 to rotate 180 degrees to unfold the second rotating tube 12. The support block 42 can support the connecting block 11, thereby improving the stability of the second rotating tube 12. When the second rotating tube 12 is unfolded, the sliding block 32 will pass through this groove, so that the sliding block 32 will not collide with the moving plate 19. During the meshing process of the first rack 20 and the first gear 21, the telescopic rod 27 will contact the second rotating shaft 9, and the telescopic rod 27 stops moving forward. The telescopic rod 27 will shorten, and the second spring 28 is compressed. When the telescopic rod 27 corresponds to the card hole 26, under the action of the second spring 28, the telescopic rod 27 elongates, and the telescopic rod 27 is inserted into the card hole 26 to lock the second rotating shaft 9, making the second rotating tube 12 unable to reset. At this time, the first rack 20 just disengages from the first gear 21, and the second rotating tube 12 has been unfolded. The convex block on the sliding block 32 faces upward, and the moving plate 19 continues to move forward. The moving plate 19 will contact the convex block on the sliding block 32, and then the moving plate 19 pushes the sliding block 32 forward. The sliding block 32 drives the sliding plate 30 to move forward, and the third spring 31 is compressed. The sliding plate 30 drives the second rack 33 to move forward. When the second rack 33 moves forward and meshes with the second gear 34, the second rack 33 drives the second gear 34 to rotate. The second gear 34 drives the valve 15 to rotate to open the valve 15. The distance between two adjacent second gears 34 is greater than the distance between two adjacent second racks 33, so the valve 15 is opened one by one. The number of valves 15 opened can be controlled according to the width of the green belt, so that the spraying ranges of the first nozzle 7 and the second nozzle 13 can fully cover the green belt, but without causing waste of fertilizer. In this way, the spraying range can be adjusted according to the width of the green belt, and the applicable range is wider. Finally, start the water pump 35, and the fertilizer in the transport tank 2 flows into the first rotating tube 6 through the liquid inlet pipe 36, the liquid outlet pipe 37, and the hose 38.The fertilizer in the rotating tube 1 6 flows into the rotating tube 2 12 through the connecting tube 14, and then the fertilizer is sprayed out through the nozzle 1 7 and the nozzle 2 13 to irrigate and fertilize the garden green belt. At the same time, the mobile base 1 can be pushed to move along the garden green to fertilize a large area of ​​garden green. After the fertilization is completed, the electric slide rail 23 is controlled to drive the push plate 24 and the inclined plate 25 to move downward, and the inclined plate 25 no longer pushes the moving plate 19. Under the action of the spring 18, the moving plate 19, the rack 1 20 and the telescopic rod 2 7 moves backward, the telescopic rod 27 moves out of the clamping hole 26, and the rotating shaft 29 is loosened. Under the action of the torsion spring 2, the rotating shaft 29 rotates in the opposite direction to reset, so that the rotating tube 21 rotates in the opposite direction to reset, and the rotating tube 21 is retracted. When the rack 1 20 moves backward and meshes with the gear 1 21, under the action of the one-way clutch, the gear 1 21 idles and does not drive the rotating shaft 29 to rotate. Then the push plate 24 moves downward and disengages from the contact block 22. Under the action of the torsion spring 1, the rotating tube 1 6 rotates downward 90 degrees to retract the rotating tube 21. ,

[0042] Implementation 2: Based on Implementation 1, refer to Figure 18 , and also includes a stirring mechanism, which includes a rotating rod 39, a stirring frame 40 and a driving motor 41. The middle part of the transport tank 2 is rotatably connected to the rotating rod 39, and the stirring frame 40 is connected to the rotating rod 39. The middle of the top of the transport tank 2 is connected to the driving motor 41 by bolts, and the output shaft of the driving motor 41 is connected to the upper end of the rotating rod 39 by a coupling.

[0043] When fertilizing the garden, the drive motor 41 can be started, the output shaft of the drive motor 41 drives the rotating rod 39 to rotate, the rotating rod 39 drives the stirring frame 40 to rotate, and the stirring frame 40 can stir the fertilizer in the transport tank 2 to avoid fertilizer precipitation and ensure the effect of the fertilizer.

[0044] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A garden irrigation spraying device for municipal engineering, comprising a mobile base (1) and a transport tank (2), wherein the top of the mobile base (1) is connected to the transport tank (2), and wherein: The transport tank (2) further comprises a mounting frame (3), a rotating shaft (4), a rotating tube (6), a nozzle (7), a mounting block (8), a rotating shaft (9), a connecting block (11), a rotating tube (12), a nozzle (13), a connecting tube (14), a valve (15), an unfolding mechanism, a control mechanism and an extraction mechanism. The transport tank (2) is connected to the mounting frame (3), the mounting frame (3) is rotatably connected to the rotating shaft (4), a torsion spring (1) is provided between the rotating shaft (4) and the mounting frame (3), the rotating shaft (4) is connected to the rotating tube (6), the bottom of the rotating tube (6) is evenly spaced and connected to the nozzle (7), the rotating tube (6) is connected to the mounting block (8), and the mounting frame (2) is connected to the rotating shaft (4). The block (8) is rotatably connected to a second rotating shaft (9), a second torsion spring is provided between the second rotating shaft (9) and the mounting block (8), a connecting block (11) is connected to the second rotating shaft (9), a second rotating tube (12) is connected to the connecting block (11), a second nozzle (13) is evenly spaced and connected to the top of the second rotating tube (12), the second rotating tube (12) and the first rotating tube (6) are connected via a connecting pipe (14), four valves (15) are evenly spaced and installed on the second rotating tube (12), an expansion mechanism is used to expand the first rotating tube (6) and the second rotating tube (12), a control mechanism is used to control the valve (15) to open and close, and an extraction mechanism is used to suck fertilizer into the first rotating tube (6); The unfolding mechanism comprises a guide rod (16), a slide plate (17), a spring (18), a movable plate (19), a rack (20), a gear (21), a contact block (22), an electric slide rail (23), a push plate (24), an inclined plate (25) and a clamping assembly. The rotating tube (6) is connected to two guide rods (16), the two guide rods (16) are slidably connected to the slide plate (17), a spring (18) is connected between the rotating tube (6) and the slide plate (17), the top of the slide plate (17) is connected to the movable plate (19), the bottom of the movable plate (19) is connected to the rack (20), the rotating shaft (9) is connected to the gear (21) via a one-way clutch, the rotating shaft (4) is connected to the contact block (22), the top of the movable base (1) is connected to the electric slide rail (23), the electric slide rail (2 3) is connected to a push plate (24), and an inclined plate (25) is connected to the push plate (24). The push plate (24) is used to push the contact block (22) to rotate the contact block (22). The contact block (22) drives the rotating shaft (4) and the rotating tube (6) to rotate, so that the rotating tube (6) is unfolded. The inclined plate (25) is used to push the moving plate (19) to move the moving plate (19) forward. The moving plate (19) drives the rack (20) to move forward. The rack (20) meshes with the gear (21) during the forward movement and drives the gear (21) to rotate. The gear (21) drives the rotating shaft (9), the connecting block (11) and the rotating tube (12) to rotate, so that the rotating tube (12) is unfolded. The locking assembly is used to lock the rotating shaft (9) so that the rotating tube (12) cannot be reset. The clamping assembly comprises a telescopic rod (27) and a second spring (28). The second rotating shaft (9) is provided with a clamping hole (26). The movable plate (19) is connected with the telescopic rod (27). The second spring (28) is arranged in the telescopic rod (27). The telescopic rod (27) can be inserted into the clamping hole (26) when it moves forward, thereby clamping the second rotating shaft (9).

2. A garden irrigation spraying device for municipal engineering as claimed in claim 1, characterized in that: The control mechanism comprises a guide rod 2 (29), a sliding plate (30), a spring 3 (31), a sliding block (32), a rack 2 (33) and a gear 2 (34). The rotating tube 2 (12) is connected with two guide rods 2 (29). The two guide rods 2 (29) are slidably connected with the sliding plate (30) and the sliding block (32). The sliding block (32) is connected with the sliding plate (30). A convex block protruding downward is provided at the bottom of the sliding block (32). When the rotating tube 2 (12) is not unfolded, the convex block on the sliding block (32) faces downward. The moving plate (19) does not contact the sliding block (32) during the forward movement. The rotating tube 2 (12) and the sliding plate (30) are connected with a spring 31. Spring three (31), four racks two (33) are evenly spaced and connected to the top of the sliding plate (30), and gears two (34) are connected to the valve (15). After the rotating tube (12) is unfolded, the protrusion on the sliding block (32) faces upward, and the moving plate (19) contacts the protrusion on the sliding block (32) during the process of moving forward. Then, the moving plate (19) pushes the sliding block (32) to move forward, and the sliding block (32) drives the racks two (33) to move forward. The racks two (33) mesh with the gears two (34) during the process of moving forward, and drive the gears two (34) to rotate. The gears two (34) drive the valve (15) to rotate, and the valve (15) is opened.

3. A garden irrigation spraying device for municipal engineering as claimed in claim 2, characterized in that: The extraction mechanism comprises a water pump (35), a liquid inlet pipe (36), a liquid outlet pipe (37) and a hose (38); the mobile base (1) is connected to the water pump (35); the water inlet end of the water pump (35) is connected to the liquid inlet pipe (36); the upper end of the liquid inlet pipe (36) is connected to the bottom of the transport tank (2); the transport tank (2) and the liquid inlet pipe (36) are in communication; the water outlet end of the water pump (35) is connected to the liquid outlet pipe (37); the liquid outlet pipe (37) is connected to the hose (38); and the hose (38) is connected to the rotating tube 1 (6).

4. A garden irrigation spraying device for municipal engineering as claimed in claim 3, characterized in that: The invention also comprises a stirring mechanism, which comprises a rotating rod (39), a stirring frame (40) and a driving motor (41); the rotating rod (39) is rotatably connected in the transport tank (2); the stirring frame (40) for stirring the fertilizer in the transport tank (2) is connected to the rotating rod (39); the driving motor (41) is connected to the transport tank (2); and the output shaft of the driving motor (41) is connected to the upper end of the rotating rod (39).

5. A garden irrigation spraying device for municipal engineering as claimed in claim 4, characterized in that: It also includes a support block (42), and the mounting block (8) is connected to the support block (42) for supporting the connecting block (11).

6. A garden irrigation spraying device for municipal engineering as claimed in claim 5, characterized in that: The movable plate (19) is provided with a groove, and when the rotating tube (12) is unfolded, the sliding block (32) will pass through the groove, so that the sliding block (32) will not collide with the movable plate (19).

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