Adjustable seedling sprinkling irrigation device based on urban landscaping engineering

Abstract

The invention discloses an adjustable nursery stock sprinkling irrigation device based on urban landscaping engineering, and relates to the technical field of greening sprinkling irrigation, the adjustable nursery stock sprinkling irrigation device specifically comprises a supporting platform, and the top of the supporting platform is fixedly provided with a water tank; the baffle capable of closing part of the channel is arranged in the connected spray head, namely, the pressure of water flow is controlled through the baffle, the baffle synchronously controls the shielding range according to the lifting angle of the spray head, and when the spray head is lifted, the pressure of the water flow passing through the spray head is synchronously increased; the water flow sprayed by the spray head can be sprayed for a farther distance so as to cope with the use environment of the long-strip nursery stock; meanwhile, cover plates which can be close to each other are arranged on the front sides of the sprayers, namely, the cover plates control the nozzle positions of the sprayers, so that the two side ranges of water flow sprayed by the sprayers are conveniently adjusted, the spraying areas on the two sides of the sprayers are controlled, and the situation that the actual spraying area exceeds the long nursery stock range is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of greening sprinkler irrigation, and more specifically, to an adjustable nursery stock sprinkler irrigation device based on urban greening projects. Background Art

[0002] Garden irrigation is a technical measure to supplement the soil moisture required for the growth of garden plants and improve the growth conditions. A garden landscape is to create a green environment through garden lawns and garden plants. While modern gardens focus on landscape construction, they also strive to improve the ecological environment. When arranging a green space system in a city, a garden greening sprinkler irrigation device is needed to systematically process the garden area.

[0003] For example, Chinese Patent CN112841008A discloses a garden greening sprinkler irrigation device, which realizes a fixed water spraying amount per unit area at different speeds through the cooperation of structures such as a passive rotation device, a transmission device, a tensioning device, and a water spraying device. It does not need to move at a constant speed when moving, ensuring that the sprinkler irrigation is completed at the fastest speed and improving the efficiency of sprinkler irrigation;

[0004] However, the above patent content only has the function of adjusting the water spraying rate and cannot synchronously and continuously adjust the water spraying angle and water spraying pressure according to the spraying distance. Especially in the sprinkler irrigation environment for long strip nursery stocks, the synchronous and continuous actions of the angle and pressure can greatly improve the nursery stock sprinkler irrigation efficiency compared with the traditional intermittent step-by-step operation of self-pressurization and self-lifting;

[0005] At the same time, the above patent content also lacks a structure for controlling the sprinkler head. Since the sprinkler head cannot control the spreading area of the water flow, it is easy to cause the wasted water flow to be sprayed at positions where it is not needed, that is, the spraying area of the water flow exceeds the actual application range of the long strip nursery stock sprinkler irrigation.

[0006] Therefore, a solution is provided now. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable nursery stock sprinkler irrigation device based on urban greening projects to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: An adjustable nursery stock sprinkler irrigation device based on urban greening projects includes a support table, a water tank is fixedly installed on the top of the support table, and a water supply pipe is arranged on one side of the water tank;

[0009] A rotating base plate is arranged on the top of the support table, and a regulating and pressurizing mechanism is arranged on the top of the rotating base plate. The regulating and pressurizing mechanism includes two columns fixedly installed on the top of the rotating base plate. The two columns are arranged vertically, and a connecting box is rotatably installed on the top of the two columns;

[0010] The connection box is arranged in a horizontal state. One side of the connection box is communicated with a spray head. Push-pressing frames are fixedly installed on both sides of the connection box. The push-pressing frames are arranged in a U shape. A lever is fixedly installed on the top of the push-pressing frame. The lever is arranged in a horizontal state.

[0011] In a preferred embodiment, two limit top plates are fixedly installed on the top of the rotating base plate. The two limit top plates are symmetrically arranged with each other. The two limit top plates are arranged obliquely downward. A top support rod is jointly provided on the tops of the two limit top plates. The top support rod is arranged in a horizontal state. The bottom of the top support rod is mutually attached to the top of the limit top plate.

[0012] In a preferred embodiment, a connecting plate is fixedly installed on the top of the top support rod. The connecting plate is arranged in a vertical state. A telescopic rod is fixedly installed on the outer wall of the connecting plate. The telescopic rod is fixedly installed at the bottom of the connection box. A limiting spring is fixedly installed inside the telescopic rod.

[0013] In a preferred embodiment, a first toothed rod is fixedly installed on the top of the connecting plate. The first toothed rod is arranged in a vertical state. A first gear is meshed with the outer wall of the first toothed rod. A rotating rod is fixedly installed on one side of the first gear. The rotating rod is rotatably installed on the inner wall of the connection box. A second gear is fixedly installed on the outer wall of the rotating rod. Two second toothed rods are respectively meshed with both sides of the second gear. The two second toothed rods are arranged staggeredly with each other. Baffles are fixedly installed on the outer walls of the two second toothed rods. The two baffles are slidably installed on the inner wall of the connection box. The two baffles are mutually attached to the outer wall of one side of the spray head.

[0014] In a preferred embodiment, a cover pressing head mechanism and a leakage receiving mechanism are arranged on the outer wall of the spray head. The cover pressing head mechanism includes a rotating handle rotatably installed on the outer wall of the lever. First belt pulleys are fixedly installed on both sides of the rotating handle. The two first belt pulleys are symmetrically arranged with each other. A synchronous belt is rotatably installed on the outer walls of the two first belt pulleys. A second belt pulley is rotatably installed on one side of the synchronous belt. A rotating shaft is fixedly installed on one side of the second belt pulley. A fixing seat is rotatably installed in the middle of the rotating shaft. The fixing seat is slidably installed on the top of the connection box. Thread grooves are respectively opened on the outer walls of both sides of the rotating shaft.

[0015] In a preferred embodiment, a support spring is fixedly installed on one side of the fixing seat. The support spring is fixedly installed on the top of the connection box. The support spring is mutually perpendicular to the fixing seat.

[0016] In a preferred embodiment, drag plates are respectively threadedly connected to both sides of the rotating shaft. The two drag plates are symmetrically arranged. Covers are respectively and slidably mounted at the bottoms of the two drag plates. The two covers are slidably mounted on the outer walls on both sides of the spray head, and the inner walls of the two covers are in mutual contact with the outer wall of the spray head.

[0017] In a preferred embodiment, the leakage receiving mechanism includes a water receiving tank fixedly mounted on the top of the swivel disk. The width of the water receiving tank is greater than the width of the spray head. A water baffle is fixedly mounted on the top of the water receiving tank. The water baffle is arranged obliquely upward. Water retaining plates are rotatably mounted at the tops on both sides of the water receiving tank. The two water retaining plates are symmetrically arranged. Push rods are hinged to the outer walls of the two water retaining plates. The two push rods are respectively hinged to the bottoms of the two covers. The two push rods are arranged staggeredly.

[0018] The technical effects and advantages of the present invention are as follows:

[0019] 1. In the present invention, a baffle capable of closing a part of the channel is provided in the connected spray head, that is, the pressure of the water flow passing through is controlled by the baffle. The baffle synchronously controls the shielding range according to the lifting angle of the spray head. While the spray head is lifted, the pressure of the water flow passing through the spray head increases synchronously, and the water flow sprayed by the spray head can be sprayed farther to facilitate the use environment for long strip seedlings.

[0020] 2. The present invention also provides covers that can approach each other in front of the spray head, that is, the covers control the position of the spray orifice of the spray head, which is convenient for adjusting the range on both sides of the water flow sprayed by the spray head, so that the areas sprayed on both sides of the spray head are controlled, and it is avoided that the actually sprayed area exceeds the range area of the long strip seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a front view of the present invention.

[0023] Figure 3 It is a partial cross-sectional view of the present invention.

[0024] Figure 4 It is a vertical cross-sectional view of the regulation and pressure boosting mechanism in the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the cover pressing head mechanism in the present invention.

[0026] Figure 6 It is a partial cross-sectional view of the cover pressing head mechanism in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the leakage receiving mechanism in the present invention.

[0028] The reference numerals are: 1, supporting pad table; 2, water tank; 3, water supply pipe; 4, rotating base plate; 5, regulating and pressurizing mechanism; 51, support column; 52, connection box; 53, spray head; 54, pushing frame; 55, lever; 56, limiting top plate; 57, supporting rod; 58, connecting plate; 59, telescopic rod; 510, limiting spring; 511, first toothed rod; 512, first gear; 513, rotating rod; 514, second gear; 515, second toothed rod; 516, baffle plate; 6, cover pressing head mechanism; 61, turning handle; 62, first pulley; 63, synchronous belt; 64, second pulley; 65, rotating shaft; 66, retaining seat; 67, supporting spring; 68, dragging plate; 69, cover plate; 7, leakage receiving mechanism; 71, leakage receiving water tank; 72, water baffle; 73, water retaining plate; 74, pushing rod. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Referring to the attached Figures 1 - 7 drawings, an adjustable nursery stock sprinkler irrigation device based on urban greening projects, as Figure 1 and Figure 2 shown, includes a supporting pad table 1, a water tank 2 is fixedly installed on the top of the supporting pad table 1, and a water supply pipe 3 is arranged on one side of the water tank 2;

[0031] A rotating base plate 4 is arranged on the top of the supporting pad table 1, and a regulating and pressurizing mechanism 5 is arranged on the top of the rotating base plate 4. As Figure 2 and Figure 3 shown, the regulating and pressurizing mechanism 5 includes two support columns 51 fixedly installed on the top of the rotating base plate 4. The two support columns 51 are arranged vertically. The tops of the two support columns 51 are rotatably installed with a connection box 52. The connection box 52 is arranged horizontally. A spray head 53 is communicated with one side of the connection box 52. Pushing frames 54 are fixedly installed on both sides of the connection box 52. The pushing frames 54 are arranged in a gate shape. A lever 55 is fixedly installed on the top of the pushing frame 54. The lever 55 is arranged horizontally. The two support columns 51 support the connection box 52 and the spray head 53, and can drive the pushing frame 54 through the lever 55 to control the deflection of the connection box 52.

[0032] As Figure 3 and Figure 4As shown, two top limit plates 56 are fixedly installed on the top of the turntable 4. The two top limit plates 56 are symmetrically arranged and inclined downward. A top supporting rod 57 is commonly provided on the top of the two top limit plates 56. The top supporting rod 57 is arranged in a horizontal state. The bottom of the top supporting rod 57 fits with the top of the top limit plate 56. When the top supporting rod 57 is pressed down, it is squeezed by the two top limit plates 56 and moves upward in the opposite direction.

[0033] like Figure 3 and Figure 4 As shown, a connecting plate 58 is fixedly installed on the top of the supporting rod 57, and the connecting plate 58 is arranged in a vertical state. A telescopic rod 59 is fixedly installed on the outer wall of the connecting plate 58, and the telescopic rod 59 is fixedly installed on the bottom of the connecting box 52. A limit spring 510 is fixedly installed inside the telescopic rod 59. The upward movement of the supporting rod 57 drives the connecting plate 58 to move upward, so that the telescopic rod 59 contracts and compresses the limit spring 510.

[0034] like Figure 3 and Figure 4 As shown, a first gear rod 511 is fixedly installed on the top of the connecting plate 58, and the first gear rod 511 is arranged in a vertical state. The outer wall of the first gear rod 511 is meshed with a first gear 512. A rotating rod 513 is fixedly installed on one side of the first gear 512. The rotating rod 513 is rotatably installed on the inner wall of the connecting box 52, and a second gear 514 is fixedly installed on the outer wall of the rotating rod 513. The connecting plate 58 moves upward to push the first gear rod 511 to drive the first gear 512 to rotate, and then the first gear 512 drives the rotating rod 513 to make the second gear 514 rotate synchronously.

[0035] Two second gear rods 515 are respectively meshed on both sides of the second gear 514, and the two second gear rods 515 are staggered. Baffles 516 are fixedly installed on the outer walls of the two second gear rods 515, and the two baffles 516 are slidably installed on the inner wall of the connecting box 52. The second gear 514 drives the two second gear rods 515 to move synchronously. At this time, the two second gear rods 515 respectively drive the baffles 516 on the upper and lower sides to move synchronously toward the middle. The two baffles 516 and the outer wall of one side of the nozzle 53 are arranged to fit each other, so that the baffles 516 on both sides block the water inlet area of the nozzle 53, thereby increasing the water inlet pressure of the nozzle 53.

[0036] In specific implementation, when spraying needs to be done at a farther position, the lever 55 drives the push frame 54 to deflect the connection box 52 downward, and the connection box 52 drives the spray head 53 to tilt upward, and the bottom of the support rod 57 and the two limit plates 56 are stressed and lifted upward by them, and the support rod 57 moves upward to drive the connecting plate 58 to move upward, and the telescopic rod 59 contracts and compresses the limit spring 510;

[0037] The connecting plate 58 moves upward to drive the first rack 511 to drive the first gear 512 to rotate. Further, the first gear 512 drives the rotating rod 513 to make the second gear 514 rotate synchronously. Then, the second gear 514 drives the two second racks 515 to move synchronously. At this time, the two second racks 515 drive the baffles 516 on the upper and lower sides to move synchronously towards the middle. Further, the baffles 516 on both sides block the water inlet area of the nozzle 53, increasing the water inlet pressure of the nozzle 53. The water flow sprayed by the nozzle 53 can be sprayed over a longer distance, improving the spraying effect on long strip seedlings.

[0038] Embodiment 2: As Figure 5 and Figure 6 shown, a cover pressing mechanism 6 and a leakage receiving mechanism 7 are provided on the outer wall of the nozzle 53. The cover pressing mechanism 6 includes a turning handle 61 rotatably installed on the outer wall of the lever 55. Two first pulleys 62 are fixedly installed on both sides of the turning handle 61. The two first pulleys 62 are symmetrically arranged. A synchronous belt 63 is rotatably installed on the outer walls of the two first pulleys 62. A second pulley 64 is rotatably installed on one side of the synchronous belt 63. A rotating shaft 65 is fixedly installed on one side of the second pulley 64;

[0039] A retaining seat 66 is rotatably installed in the middle of the rotating shaft 65. The retaining seat 66 is slidably installed on the top of the connection box 52. Threaded grooves are respectively formed on the outer walls of both sides of the rotating shaft 65. When the turning handle 61 on the outer wall of the lever 55 is rotated, the turning handle 61 drives the two first pulleys 62 on both sides to make the synchronous belt 63 rotate synchronously to drive the second pulley 64 to rotate. Further, the two second pulleys 64 on both sides drive the rotating shaft 65 to rotate.

[0040] As Figure 5 and Figure 6 shown, a support spring 67 is fixedly installed on one side of the retaining seat 66. The support spring 67 is fixedly installed on the top of the connection box 52. The support spring 67 and the retaining seat 66 are perpendicular to each other. When the lever 55 deflects and pulls the synchronous belt 63, the rotating shaft 65 driven by the retaining seat 66 is synchronously pulled and the support spring 67 is compressed, so that when the synchronous belt 63 is pulled by deflection, it still maintains a stable connection state.

[0041] As Figure 5 and Figure 6 shown, two drag plates 68 are respectively threadedly connected to both sides of the rotating shaft 65. The two drag plates 68 are symmetrically arranged. The bottoms of the two drag plates 68 are respectively slidably installed with cover plates 69. The two cover plates 69 are slidably installed on the outer walls of both sides of the nozzle 53. The inner walls of the two cover plates 69 are in contact with the outer wall of the nozzle 53. When the rotating shaft 65 rotates, it drives the two drag plates 68 to move relatively, that is, the drag plates 68 drive the cover plates 69 to move synchronously, so that the cover plates 69 on both sides limit the spraying area of the nozzle 53.

[0042] As Figure 7As shown in the figure, the leakage receiving mechanism 7 includes a water receiving tank 71 fixedly installed on the top of the turntable 4. The width of the water receiving tank 71 is greater than the width of the spray head 53. A water baffle 72 is fixedly installed on the top of the water receiving tank 71. The water baffle 72 is arranged obliquely upward. The two sides of the top of the water receiving tank 71 are rotatably installed with water retaining plates 73. The two water retaining plates 73 are symmetrically arranged. The outer walls of the two water retaining plates 73 are hinged with push rods 74. The two push rods 74 are respectively hinged to the bottoms of the two cover plates 69. When the two cover plates 69 move, they respectively push the two water retaining plates 73 to deflect outward through the push rods 74, that is, the water retaining plates 73 on both sides expand the receiving area of the water receiving tank 71, thereby avoiding water leakage. The two push rods 74 are arranged staggeredly with each other.

[0043] During specific implementation, when the rotary handle 61 on the outer wall of the shift lever 55 is rotated, the rotary handle 61 drives the first pulleys 62 on both sides to make the synchronous belt 63 rotate synchronously to drive the second pulley 64 to rotate. Furthermore, the second pulleys 64 on both sides drive the rotating shaft 65 to rotate. The rotation of the rotating shaft 65 drives the two drag plates 68 to move relatively, that is, the drag plates 68 drive the cover plates 69 to move synchronously. Thus, the two cover plates 69 limit the spraying area of the spray head 53, avoiding the actual spraying area exceeding the range area of the long strip seedlings. When the two cover plates 69 move, they respectively push the two water retaining plates 73 to deflect outward, that is, the water retaining plates 73 on both sides expand the receiving area of the water receiving tank 71, avoiding water leakage and waste.

[0044] In the present invention, a baffle 516 capable of closing a part of the channel is arranged in the connected spray head 53, that is, the pressure of the water flow passing through is controlled by the baffle 516. The baffle 516 synchronously controls the shielding range according to the lifting angle of the spray head 53. While the spray head 53 is lifting, the pressure of the water flow passing through the spray head 53 increases synchronously, and the water flow sprayed by the spray head 53 can be sprayed to a farther distance, so as to cope with the use environment of the long strip seedlings.

[0045] At the same time, cover plates 69 capable of approaching each other are arranged on the front side of the spray head 53, that is, the cover plates 69 control the position of the spray orifice of the spray head 53, facilitating the adjustment of the two-side range of the water flow sprayed by the spray head 53, so that the spraying areas on both sides of the spray head 53 are controlled, avoiding the actual spraying area exceeding the range area of the long strip seedlings.

[0046] In summary, the water spraying angle and water spraying pressure are synchronously and continuously adjusted according to the spraying distance, especially for the spray irrigation environment of long strip seedlings, the synchronous and continuous actions of the angle and pressure. Compared with the traditional intermittent step-by-step operation of self-pressurization and self-lifting, the spray irrigation efficiency of the seedlings can be greatly improved. At the same time, the spreading area of the water flow is controlled, so that the sprayed water flow area is controlled and coincides with the actual spray irrigation range of the long strip seedlings used.

[0047] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0048] Second, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0049] Finally, the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable nursery stock sprinkler irrigation device based on urban greening projects, including a support table (1), a water tank (2) is fixedly installed on the top of the support table (1), and a water delivery pipe (3) is arranged on one side of the water tank (2), and it is characterized in that: A rotating seat plate (4) is arranged on the top of the support table (1), and a regulation and pressurization mechanism (5) is arranged on the top of the rotating seat plate (4). The regulation and pressurization mechanism (5) includes two support columns (51) fixedly installed on the top of the rotating seat plate (4). The two support columns (51) are arranged vertically, and a connection box (52) is rotatably installed on the top of the two support columns (51); The connection box (52) is arranged horizontally. A nozzle (53) is communicated with one side of the connection box (52). Push frames (54) are fixedly installed on both sides of the connection box (52). The push frames (54) are arranged in a U shape. A lever (55) is fixedly installed on the top of the push frame (54). The lever (55) is arranged horizontally.

2. The adjustable nursery stock sprinkler irrigation device based on urban greening projects according to claim 1, wherein: Two limit top plates (56) are fixedly installed on the top of the rotating seat plate (4). The two limit top plates (56) are symmetrically arranged. The two limit top plates (56) are arranged obliquely downward. A top support rod (57) is arranged on the top of the two limit top plates (56). The top support rod (57) is arranged horizontally. The bottom of the top support rod (57) is in mutual contact with the top of the limit top plate (56).

3. The adjustable nursery stock sprinkler irrigation device based on urban greening projects according to claim 2, wherein: A connecting plate (58) is fixedly installed on the top of the top support rod (57). The connecting plate (58) is arranged vertically. A telescopic rod (59) is fixedly installed on the outer wall of the connecting plate (58). The telescopic rod (59) is fixedly installed on the bottom of the connection box (52). A limit spring (510) is fixedly installed inside the telescopic rod (59).

4. The adjustable nursery stock sprinkler irrigation device based on urban greening projects according to claim 3, characterized in that: A first toothed rod (511) is fixedly installed on the top of the connecting plate (58). The first toothed rod (511) is arranged vertically. A first gear (512) is meshed with the outer wall of the first toothed rod (511). A rotating rod (513) is fixedly installed on one side of the first gear (512). The rotating rod (513) is rotatably installed on the inner wall of the connection box (52). A second gear (514) is fixedly installed on the outer wall of the rotating rod (513). Two second toothed rods (515) are respectively meshed on both sides of the second gear (514). The two second toothed rods (515) are arranged staggeredly. Baffles (516) are fixedly installed on the outer walls of the two second toothed rods (515). The two baffles (516) are slidably installed on the inner wall of the connection box (52). The two baffles (516) are in mutual contact with the outer wall of one side of the nozzle (53).

5. The adjustable seedling sprinkler irrigation device based on urban greening projects according to claim 1, characterized in that: The outer wall of the nozzle (53) is provided with a capping press head mechanism (6) and a leakage receiving mechanism (7). The capping press head mechanism (6) includes a rotary handle (61) rotatably installed on the outer wall of the lever (55). On both sides of the rotary handle (61), first pulleys (62) are fixedly installed. The two first pulleys (62) are symmetrically arranged. A timing belt (63) is rotatably installed on the outer walls of the two first pulleys (62). On one side of the timing belt (63), a second pulley (64) is rotatably installed. On one side of the second pulley (64), a rotating shaft (65) is fixedly installed. In the middle of the rotating shaft (65), a retaining seat (66) is rotatably installed. The retaining seat (66) is slidably installed on the top of the connection box (52). Thread grooves are respectively formed on the outer walls on both sides of the rotating shaft (65).

6. The adjustable seedling sprinkler irrigation device based on urban greening projects according to claim 5, characterized in that: On one side of the retaining seat (66), a support spring (67) is fixedly installed. The support spring (67) is fixedly installed on the top of the connection box (52). The support spring (67) and the retaining seat (66) are perpendicular to each other.

7. The adjustable nursery stock sprinkler irrigation device based on urban greening projects according to claim 6, wherein: Threaded connections are respectively arranged between the two sides of the rotating shaft (65) and drag plates (68). The two drag plates (68) are symmetrically arranged. At the bottoms of the two drag plates (68), cover plates (69) are respectively slidably installed. The two cover plates (69) are slidably installed on the outer walls on both sides of the nozzle (53). The inner walls of the two cover plates (69) are in mutual contact with the outer wall of the nozzle (53).

8. The adjustable nursery stock sprinkler irrigation device based on urban greening projects according to claim 7, characterized in that: The leakage receiving mechanism (7) includes a water receiving tank (71) fixedly installed on the top of the rotating seat plate (4). The width of the water receiving tank (71) is greater than the width of the nozzle (53). On the top of the water receiving tank (71), a water baffle (72) is fixedly installed. The water baffle (72) is arranged obliquely upward. On the top of both sides of the water receiving tank (71), water retaining plates (73) are rotatably installed. The two water retaining plates (73) are symmetrically arranged. On the outer walls of the two water retaining plates (73), push rods (74) are hinged. The two push rods (74) are respectively hinged to the bottoms of the two cover plates (69). The two push rods (74) are arranged staggeredly from each other.

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