A green maintenance spraying device with convenient angle control

Abstract

This invention relates to the field of greening maintenance technology, specifically to a greening maintenance sprinkler system with convenient angle control, comprising a water supply pipe, a sprinkler structure, an angle adjustment structure, and a water pressure control structure. The lower half of the water supply pipe has an outlet. The sprinkler structure includes a hose and a nozzle. The angle adjustment structure is located in the middle of the water supply pipe and includes several adjusting arms, one end of which is axially connected to the side wall of the water supply pipe. The water pressure control structure includes a pressure plate, a transmission column, and a linkage structure. The pressure plate is located inside the water supply pipe, and the transmission column is coaxially arranged with the water supply pipe. One end of the transmission column is connected to the pressure plate, and the other end is connected to the linkage structure. The linkage structure connects the several adjusting arms to the transmission column. By configuring the water supply pipe, sprinkler structure, angle adjustment structure, and water pressure control structure, the sprinkler angle can be directly adjusted using water pressure changes, eliminating the need for a drive device.

Description

Technical Field

[0001] This invention relates to the field of greening maintenance technology, specifically to a greening maintenance spraying device with convenient angle control. Background Technology

[0002] With the acceleration of urbanization, the continuous expansion of urban green areas, and the increasing demands of the public for ecological environment quality, the importance of green space maintenance has become increasingly prominent. Existing landscaping maintenance equipment typically uses sprinkler heads to spray water within the garden, where the spray angle and spray range are relatively fixed.

[0003] Patent CN221689597U discloses a greening maintenance construction device. When the spray needs to be adjusted, the device activates a drive assembly, which drives the lifting push rod and the bottom support plate to rotate relative to each other. This causes the moving push rod to drive the rotating disk to rotate via the extension rod, thereby adjusting the horizontal spray angle. The device can also activate the lifting push rod and the telescopic push rod, which in turn drive the connecting block and the fixed block to move to the top or bottom, thereby causing the moving push rod and the extension rod to rise and fall synchronously, thus adjusting the spray height. Furthermore, the device can activate the lifting push rod or the telescopic push rod separately to adjust the angle of the extension rod, which in turn adjusts the angle of the rotating disk, thereby adjusting the vertical spray angle.

[0004] Although the above solution enables the adjustment of the horizontal and vertical spray angles, it requires the installation of multiple drive devices on the greening maintenance equipment. When the greening maintenance equipment is fixedly installed outdoors, the drive devices are easily damaged by the external environment, resulting in high maintenance costs. Summary of the Invention

[0005] To address the aforementioned issues, a convenient angle-controlled greening maintenance sprinkler system is provided. By incorporating a water supply pipe, a sprinkler structure, an angle adjustment structure, a water pressure control structure, and a rotating mechanism, the system directly adjusts the sprinkler angle using changes in water pressure. This eliminates the need for a drive unit, simplifies the equipment structure, and reduces costs.

[0006] To address the problems of existing technologies, this invention provides a convenient angle-controlled greening maintenance sprinkler system, comprising a water supply pipe, a pressure-regulating water pump, a sprinkler structure, an angle adjustment structure, a water pressure control structure, and a rotating mechanism. The water supply pipe is vertically arranged, with several water outlets in its lower half. The pressure-regulating water pump is located at the lower end of the water supply pipe. The sprinkler structure comprises several components, including a flexible hose and a nozzle, with the two ends of the hose connected to the water outlet and the nozzle, respectively. The angle adjustment structure is located in the middle of the water supply pipe and includes several adjusting arms. One end of the adjusting arm is axially connected to the side wall of the water supply pipe, and the nozzle is installed at the other end of the adjusting arm. The water pressure control structure is set at the upper end of the water supply pipe. The water pressure control structure includes a pressure plate, a transmission column, and a linkage structure. The pressure plate is set inside the water supply pipe, and the diameter of the pressure plate is the same as the inner diameter of the water supply pipe. The transmission column is coaxially set with the water supply pipe. One end of the transmission column is connected to the pressure plate, and the other end of the transmission column passes through the end of the water supply pipe and is connected to the linkage structure. The linkage structure connects several adjusting arms to the transmission column. The rotating mechanism is set at the lower end of the pressure regulating water pump.

[0007] Preferably, the angle adjustment structure further includes several angle limiting plates, each corresponding to several adjusting arms. The angle limiting plates are located at the axial connection between the adjusting arm and the side wall of the water supply pipe. Each angle limiting plate includes two limiting plate bodies, with one end of the adjusting arm located between the two limiting plate bodies.

[0008] Preferably, the angle adjustment structure further includes a guide structure. The middle part of the adjustment arm has an installation cavity for accommodating the guide structure. The guide structure includes an arc frame and two self-adjusting components. The arc frame is set in the installation cavity, and the flexible hose is laid on the arc frame. The two self-adjusting components are respectively set on both sides of the adjustment arm, and the two self-adjusting components are connected to the arc frame.

[0009] Preferably, the guide structure also includes rollers, and there are several rollers arranged at equal intervals on the arc-shaped frame.

[0010] Preferably, the self-adjusting assembly includes a guide rod, a slider, and a first spring; the guide rod is arranged parallel to the side of the adjusting arm, and both ends of the guide rod are connected to the adjusting arm; the slider is slidably arranged on the guide rod, and the slider is connected to the arc frame; the first spring is sleeved on the guide rod, and both ends of the first spring abut against the end of the guide rod and the side of the slider, respectively.

[0011] Preferably, the water pressure control structure further includes a second spring, which is sleeved on the transmission column, and the two ends of the second spring abut against the end of the water supply pipe and the pressure plate, respectively.

[0012] Preferably, the transmission column has a first air guide channel inside along its axial direction, the first air guide channel is connected to the outside, and the end of the transmission column connected to the pressure plate has a number of air holes, which are connected to the first air guide channel.

[0013] Preferably, the water pressure control structure further includes a protective structure, which is located at the end of the transmission column. The protective structure includes an exhaust block and a cover plate. A second air guide channel is provided in the middle of the exhaust block, which is connected to the first air guide channel. The upper end of the exhaust block is shaped like a frustum. The cover plate is placed on the upper end of the exhaust block, and a frustum-shaped inner cavity is provided inside the cover plate. A gas flow channel is formed between the inner cavity of the cover plate and the upper end of the exhaust block.

[0014] Preferably, the protective structure further includes an annular insect-proof net, which is disposed between the exhaust block and the cover plate, and the inner diameter of the annular insect-proof net is larger than the inner diameter of the second air guide channel.

[0015] Preferably, the rotating mechanism includes a fixed plate, a main rotating shaft, and a rotating drive; the fixed plate is horizontally arranged at the lower end of the pressure regulating water pump; the main rotating shaft is arranged in the middle of the fixed plate, and the axis of the main rotating shaft is collinear with the axis of the water supply pipe, one end of the main rotating shaft is connected to the fixed plate through a bearing, and the other end of the main rotating shaft is fixedly connected to the pressure regulating water pump; the rotating drive is arranged on one side of the main rotating shaft, and the rotating drive is connected to the main rotating shaft in a driving connection.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention includes a water supply pipe, a sprinkler structure, an angle adjustment structure, a water pressure control structure, and a rotating mechanism. The rotating mechanism allows the water supply pipe to rotate around its own axis, facilitating coverage of the surrounding green areas. Through a pressure plate, a transmission column, and a linkage structure, the invention enables automatic adjustment of the sprinkler head's spray angle based on changes in water pressure within the water supply pipe. When the water pressure is low, the sprinkler head's spray range is limited. However, as the water pressure gradually increases, the pressure plate rises under pressure, driving the adjusting arm to rotate via the transmission column and linkage structure. This gradually increases the angle between the sprinkler head and the ground, expanding the spray range. This eliminates the need for a drive device at the sprinkler head, simplifying the equipment structure and reducing costs.

[0018] 2. The present invention is equipped with an angle limiting plate, which controls the rotation range of the adjusting arm and avoids the problem of reduced spray range caused by excessive water spraying height. Under the control of the adjusting arm by the angle limiting plate, as the water pressure continues to increase, the spraying range of the nozzle at a fixed angle is further expanded. While maintaining a stable angle between the nozzle and the ground, the spraying range is maximized, achieving uniform coverage of a larger green area.

[0019] 3. The present invention is equipped with an arc-shaped frame and a self-adjusting component. The arc-shaped frame provides effective support for the hose. Under the action of the self-adjusting component, the hose can fit the arc-shaped frame and smoothly transition along its path, avoiding disorderly swaying or partial folding of the hose due to lack of support when the adjusting arm moves. This ensures the continuous reliability of the hose in the dynamic environment, reduces the change in water flow velocity caused by physical deformation, and thus ensures the smoothness and stability of the water flow. Attached Figure Description

[0020] Figure 1 This is a perspective view of a greening maintenance spraying device that allows for convenient angle control according to the present invention.

[0021] Figure 2 This is a front view of the water supply pipe, spray structure, angle adjustment structure, and water pressure control structure in a greening maintenance spraying device with convenient angle control according to the present invention.

[0022] Figure 3 yes Figure 2 A three-dimensional sectional view at point AA.

[0023] Figure 4 This is a perspective view of the water supply pipe, spraying structure, and angle adjustment structure of a greening maintenance spraying device with convenient angle control according to the present invention.

[0024] Figure 5 This is a perspective view of the spraying structure and angle adjustment structure in a greening maintenance spraying device with convenient angle control according to the present invention.

[0025] Figure 6 This is a perspective view of the adjusting arm and guide structure in a greening maintenance spraying device with convenient angle control according to the present invention.

[0026] Figure 7 This is a perspective view of the spraying structure, angle adjustment structure, and water pressure control structure in a greening maintenance spraying device with convenient angle control according to the present invention.

[0027] Figure 8 This is a perspective view of the pressure plate and transmission column in a greening maintenance spraying device with convenient angle control according to the present invention.

[0028] Figure 9 This is an exploded view of the protective structure in a greening maintenance spraying device with convenient angle control according to the present invention.

[0029] Figure 10 This is a front view of the pressure regulating water pump and rotating mechanism in a greening maintenance sprinkler device with convenient angle control according to the present invention.

[0030] The diagram is labeled as follows: 1. Water supply pipe; 11. Water outlet; 2. Pressure regulating pump; 3. Sprinkler structure; 31. Hose; 32. Sprinkler head; 4. Angle adjustment structure; 41. Adjusting arm; 42. Angle limit plate; 421. Limit plate body; 43. Guide structure; 431. Arc frame; 432. Self-adjusting component; 4321. Guide rod; 4322. Slider; 4323. First spring; 433. Roller; 5. Water pressure control structure; 51. Bearing 511. Pressure plate; 52. Sealing plug; 53. Transmission column; 54. First air guide channel; 55. Air hole; 56. Linkage structure; 57. Linkage plate; 58. Fixed arm; 59. Rotating arm; 50. Second spring; 51. Protective structure; 52. Exhaust block; 53. Second air guide channel; 54. Cover plate; 55. Annular insect net; 6. Rotating mechanism; 61. Fixed plate; 62. Main shaft; 63. Rotary driver. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 10As shown: A convenient angle-controlled greening maintenance sprinkler system includes a water supply pipe 1, a pressure-regulating water pump 2, a sprinkler structure 3, an angle adjustment structure 4, a water pressure control structure 5, and a rotating mechanism 6. The water supply pipe 1 is vertically arranged, and several water outlets 11 are opened in the lower half of the water supply pipe 1. The pressure-regulating water pump 2 is located at the lower end of the water supply pipe 1. There are several sprinkler structures 3, and each sprinkler structure 3 corresponds to a number of water outlets 11. Each sprinkler structure 3 includes a flexible hose 31 and a nozzle 32. The two ends of the flexible hose 31 are connected to the water outlets 11 and the nozzles 32, respectively. The angle adjustment structure 4 is located in the middle of the water supply pipe 1. The angle adjustment structure 4 includes several adjusting arms 41. One end of the adjusting arm 41 is axially connected to the side wall of the water supply pipe 1, and the nozzle 32 is installed at the other end of the adjusting arm 41. The water pressure control structure 5 is located at the upper end of the water supply pipe 1. The water pressure control structure 5 includes a pressure plate 51, a transmission column 52, and a linkage structure 53. The pressure plate 51 is installed inside the water supply pipe 1, and the diameter of the pressure plate 51 is the same as the inner diameter of the water supply pipe 1. A sealing plug 511 is provided on one side of the pressure plate 51. The transmission column 52 is coaxially arranged with the water supply pipe 1. One end of the transmission column 52 is connected to the pressure plate 51, and the other end of the transmission column 52 passes through the end of the water supply pipe 1 and is connected to the linkage structure 53. The linkage structure 53 connects several adjusting arms 41 to the transmission column 52. The linkage structure 53 includes a linkage disk 531, several fixed arms 532 and several rotating arms 533. The linkage disk 531 is connected to the transmission column 52. Several fixed arms 532 are arranged in a ring around the linkage disk 531. One end of the fixed arm 532 is connected to the linkage disk 531. Several rotating arms 533 correspond to several fixed arms 532 respectively. The two ends of the rotating arms 533 are axially connected to the fixed arms 532 and the adjusting arms 41 respectively. The rotating mechanism 6 is installed at the lower end of the pressure regulating water pump 2.

[0033] When the water pressure in the water supply pipe 1 is low, the pressure on the pressure plate 51 is small, and it will not drive the transmission column 52 and the linkage structure 53 to move. At this time, the nozzle 32 may face the ground, and the spraying range is limited. When the pressure regulating pump 2 starts and gradually increases the water pressure in the water supply pipe 1, the vertical upward pressure on the pressure plate 51 increases, pushing the pressure plate 51 to move upward. The pressure plate 51 drives the linkage structure 53 to rise through the transmission column 52. The rotating arm 533 in the linkage structure 53 then drives the adjusting arm 41 to rotate around its shaft connection with the water supply pipe 1, so that the angle between the nozzle 32 and the ground gradually increases. The higher water pressure expands the spray range of the nozzle 32. In addition, the rotating mechanism 6 is located at the lower end of the pressure regulating pump 2, driving the water supply pipe 1 to rotate around its own axis, ensuring full coverage of the surrounding green area. As the water pressure in the water supply pipe 1 changes, the pressure and movement distance of the pressure plate 51 are different. The swing amplitude of the adjusting arm 41 driven by the transmission column 52 and the linkage structure 53 also changes accordingly, thereby changing the spray angle of the nozzle 32. This realizes the direct adjustment of the spray angle of the nozzle 32 by using water pressure changes, avoiding the use of a drive device, simplifying the equipment structure, and reducing costs.

[0034] Reference Figure 3 and Figure 4 As shown: The angle adjustment structure 4 also includes several angle limiting plates 42, which correspond to several adjusting arms 41 respectively. The angle limiting plates 42 are set at the axial connection between the adjusting arm 41 and the side wall of the water supply pipe 1. The angle limiting plate 42 includes two limiting plate bodies 421, and one end of the adjusting arm 41 is located between the two limiting plate bodies 421.

[0035] As the water pressure in the water supply pipe 1 gradually increases, the pressure on the pressure plate 51 also increases. This, in turn, drives the adjusting arm 41 to rotate around its shaft connection with the water supply pipe 1 via the transmission column 52 and the linkage structure 53. As the adjusting arm 41 rotates, the angle between the nozzle 32 and the ground gradually increases, raising the spray height of the nozzle 32 while correspondingly reducing the spray range. To control the rotation range of the adjusting arm 41 and prevent the spray range from shrinking due to excessive spray height, an angle limiting plate 42 is installed at the shaft connection between the adjusting arm 41 and the water supply pipe 1. When the adjusting arm 41 rotates to the point where it is perpendicular to the ground, the angle limiting plate 42 is used to control the rotation of the adjusting arm 41. When the limiting plate 421 above it comes into contact, as the water pressure in the water supply pipe 1 further increases, the adjusting arm 41 is physically blocked by the limiting plate 421 and can no longer rotate. At this time, the angle between the adjusting arm 41 and the ground is kept within a fixed range, ensuring that the spraying height and spraying range of the nozzle 32 reach the best balance. At the same time, as the water pressure continues to rise, the spraying range of the nozzle 32 at the fixed angle will be further expanded, thereby avoiding the problem of the spraying range shrinking due to excessive spraying height, and further achieving coverage of a larger area of ​​greening.

[0036] Reference Figure 4 and Figure 5 As shown: The angle adjustment structure 4 also includes a guide structure 43. The middle part of the adjustment arm 41 has an installation cavity for accommodating the guide structure 43. The guide structure 43 includes an arc frame 431 and two self-adjusting components 432. The arc frame 431 is set in the installation cavity, and the flexible hose 31 is laid on the arc frame 431. The two self-adjusting components 432 are respectively set on both sides of the adjustment arm 41, and the two self-adjusting components 432 are connected to the arc frame 431.

[0037] When the adjusting arm 41 drives the nozzle 32 to move, the hose 31 may swing disorderly or be folded in part due to lack of effective support, which will affect the water flow speed. By introducing the guiding structure 43, the hose 31 is placed on the arc frame 431. The two self-adjusting components 432 can apply corresponding forces to the arc frame 431 according to the dynamic changes of the hose 31, ensuring that the hose 31 is in close contact with the arc frame 431. This allows the hose 31 to smoothly transition along the path of the arc frame 431 when the adjusting arm 41 moves, avoiding disorderly movement and folding, thereby ensuring smooth and stable water flow.

[0038] Reference Figure 5 and Figure 6 As shown: the guide structure 43 also includes rollers 433, and there are several rollers 433, which are evenly spaced on the arc frame 431.

[0039] When the hose 31 smoothly transitions along the preset path of the arc frame 431, the direct contact between the hose 31 and the arc frame 431 generates a large sliding friction force. The hose 31 is usually made of rubber, and the contact area between the hose 31 and the arc frame 431 is relatively large. This sliding friction not only increases the resistance to the movement of the hose 31, but also accelerates the wear of the hose 31. By setting several rollers 433 on the arc frame 431, the hose 31 is placed on the rollers 433. When the adjusting arm 41 drives the nozzle 32 to move, the hose 31 moves accordingly and drives the rollers 433 to rotate, so that rolling friction is formed between the hose 31 and the rollers 433. Compared with the original sliding friction, rolling friction reduces the resistance to the movement of the hose 31, thereby reducing the wear of the hose 31 during the movement process and reducing maintenance costs.

[0040] Reference Figure 5 and Figure 6As shown: The self-adjusting assembly 432 includes a guide rod 4321, a slider 4322, and a first spring 4323; the guide rod 4321 is arranged parallel to the side of the adjusting arm 41, and both ends of the guide rod 4321 are connected to the adjusting arm 41; the slider 4322 is slidably arranged on the guide rod 4321, and the slider 4322 is connected to the arc frame 431; the first spring 4323 is sleeved on the guide rod 4321, and both ends of the first spring 4323 abut against the end of the guide rod 4321 and the side of the slider 4322, respectively.

[0041] When the adjusting arm 41 is stationary, the two first springs 4323 in the two self-adjusting components 432 apply forces to the two sliders 4322 respectively. The resultant force of the two forces and the force exerted by the water flow in the hose 31 on the arc frame 431 reach a dynamic balance, ensuring that the system remains stable. When the adjusting arm 41 starts to move, the hose 31 moves accordingly. As the position of the hose 31 changes, the force exerted by the hose 31 on the arc frame 431 also changes accordingly. When the force exerted by the hose 31 on the arc frame 431 decreases, the first spring 4323 will use its stored elastic potential energy to push the slider 4322 to move along the guide rod 4321. The movement of the slider 4322 further drives the arc frame 431 and the hose 31 to move synchronously. When the force exerted by the hose 31 on the arc frame 431 increases, the first spring 4323 can be compressed, so that the arc frame 431 and the hose 31 move synchronously, thereby ensuring that the hose 31 is continuously and effectively supported.

[0042] Reference Figure 3 and Figure 7 As shown: The water pressure control structure 5 also includes a second spring 54, which is sleeved on the transmission column 52. The two ends of the second spring 54 abut against the end of the water supply pipe 1 and the pressure plate 51, respectively.

[0043] The downward force on the pressure plate 51 mainly comes from its own weight, the weight of the transmission column 52, and the gravity of the linkage structure 53 connected to it. When the water pressure acting on the pressure plate 51 exceeds the sum of these gravity forces, the pressure plate 51 will begin to move upward. Once the water pressure exceeds this critical value, no matter how much the water pressure increases further, the pressure plate 51 will be pushed to the highest point within its movable range. In order to make the spray range of the nozzle 32 correspond to the water pressure, a second spring 54 is fitted on the transmission column 52. As the water pressure gradually increases, the second spring 54 is compressed, and the downward reaction force it exerts on the pressure plate 51 also increases. When the water pressure reaches a certain stable state, the forces acting on the upper and lower sides of the pressure plate 51 reach a dynamic equilibrium. At this time, the pressure plate 51 will stop moving and maintain its current position. If the water pressure continues to increase, the pressure plate 51 will continue to move upward under the action of the water pressure until a new force equilibrium state is reached, thereby realizing different spray ranges corresponding to different water pressures.

[0044] Reference Figure 3 and Figure 8 As shown: The transmission column 52 has a first air guide channel 521 inside along its axial direction. The first air guide channel 521 is connected to the outside. The end of the transmission column 52 connected to the pressure plate 51 has a number of air holes 522, which are connected to the first air guide channel 521.

[0045] A closed space is formed between the pressure plate 51 and the end of the water supply pipe 1. This closed space contains a certain amount of air. When the pressure plate 51 moves upward due to external water pressure, the air in the closed space is compressed, which in turn generates resistance to the movement of the pressure plate 51. In order to effectively alleviate this resistance, the air in the closed space will flow to the low-pressure area according to the principle of pressure gradient. Since the first air guide channel 521 is connected to the external space, its internal air pressure can remain stable. Therefore, the air in the closed space will enter the first air guide channel 521 through the air hole 522 and will eventually be discharged into the external environment, ensuring that the air pressure in the closed space is maintained at a relatively stable level, reducing the air resistance to the movement of the pressure plate 51. When the pressure plate 51 is reset under changes in external conditions, the external air can smoothly enter the closed space through the first air guide channel 521, effectively preventing the decrease of the internal air pressure. This achieves effective control of the air pressure in the closed space between the pressure plate 51 and the water supply pipe 1, ensuring that the pressure plate 51 is not disturbed by air pressure fluctuations during movement.

[0046] Reference Figure 3 and Figure 9 As shown: The water pressure control structure 5 also includes a protective structure 55, which is located at the end of the transmission column 52. The protective structure 55 includes an exhaust block 551 and a cover plate 552. A second air guide channel 5511 is provided in the middle of the exhaust block 551, which is connected to the first air guide channel 521. The upper end of the exhaust block 551 is truncated cone-shaped. The cover plate 552 is placed on the upper end of the exhaust block 551. A truncated cone-shaped inner cavity is provided inside the cover plate 552. A gas flow channel is formed between the inner cavity of the cover plate 552 and the upper end of the exhaust block 551.

[0047] The upper end of the first air guide channel 521 is open, and rainwater will enter the water supply pipe 1 through the first air guide channel 521, which can easily cause corrosion of the pressure plate 51, etc. By setting the protective structure 55, a gas flow channel is formed between the inner cavity of the cover plate 552 and the upper end of the exhaust block 551, which is first inclined upward and then horizontal. When the gas enters the water supply pipe 1, the gas will first move upward along the side wall of the frustum, and then move horizontally at the top of the frustum, and finally enter the second air guide channel 5511. Since the rainwater will only fall downward due to gravity and cannot move upward along the side wall of the frustum, the rainwater is effectively blocked outside the protective structure 55, thereby preventing the rainwater from entering the interior of the water supply pipe 1.

[0048] Reference Figure 3 and Figure 9 As shown: The protective structure 55 also includes an annular insect-proof net 553, which is disposed between the exhaust block 551 and the cover plate 552, and the inner diameter of the annular insect-proof net 553 is larger than the inner diameter of the second air guide channel 5511.

[0049] In practical applications, since the equipment is usually installed outdoors, it faces the risk of invasion by foreign organisms such as flying insects. By adding a ring-shaped insect-proof net 553, flying insects will be tightly blocked from entering the water supply pipe 1 when they attempt to enter, thus avoiding their entry into the water supply pipe 1 and the potential pollution or blockage problems they may cause.

[0050] Reference Figure 1 and Figure 10 As shown: The rotating mechanism 6 includes a fixed plate 61, a main rotating shaft 62, and a rotating driver 63; the fixed plate 61 is horizontally arranged at the lower end of the pressure regulating water pump 2; the main rotating shaft 62 is arranged in the middle of the fixed plate 61, and the axis of the main rotating shaft 62 is collinear with the axis of the water supply pipe 1. One end of the main rotating shaft 62 is connected to the fixed plate 61 through a bearing, and the other end of the main rotating shaft 62 is fixedly connected to the pressure regulating water pump 2; the rotating driver 63 is arranged on one side of the main rotating shaft 62, and the rotating driver 63 is connected to the main rotating shaft 62 in a transmission connection.

[0051] In the spray structure 3, there is a certain angle between two adjacent nozzles 32. Although the nozzles 32 can spray a fan-shaped spray range, the overlapping area between these ranges is relatively limited. To make up for this deficiency, the rotating mechanism 6 works while the spray structure 3 is working. The rotating driver 63 drives the main rotating shaft 62 to rotate continuously in both directions around its own axis. As the main rotating shaft 62 and the water supply pipe 1 swing, the nozzles 32 also change their spray direction. The blank area between two adjacent nozzles 32 is fully covered, thereby achieving an effective expansion of the spray range and ensuring that the entire spray area can be sprayed evenly and effectively.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A convenient angle-controlled greening maintenance spraying device, characterized in that, It includes a water supply pipe (1), a pressure regulating water pump (2), a spray structure (3), an angle adjustment structure (4), a water pressure control structure (5), and a rotating mechanism (6); The water supply pipe (1) is set vertically, and the lower half of the water supply pipe (1) has several water outlets (11); The pressure regulating water pump (2) is installed at the lower end of the water supply pipe (1); The spray structure (3) has several parts, and the spray structure (3) includes a hose (31) and a nozzle (32). The two ends of the hose (31) are connected to the water outlet (11) and the nozzle (32) respectively. Angle adjustment structure (4) is set in the middle of water supply pipe (1). Angle adjustment structure (4) includes several adjustment arms (41). One end of the adjustment arm (41) is axially connected to the side wall of water supply pipe (1), and the nozzle (32) is installed at the other end of the adjustment arm (41). The water pressure control structure (5) is set at the upper end of the water supply pipe (1). The water pressure control structure (5) includes a pressure plate (51), a transmission column (52) and a linkage structure (53). The pressure plate (51) is set inside the water supply pipe (1), and the diameter of the pressure plate (51) is the same as the inner diameter of the water supply pipe (1). The transmission column (52) is coaxially set with the water supply pipe (1). One end of the transmission column (52) is connected to the pressure plate (51), and the other end of the transmission column (52) passes through the end of the water supply pipe (1) and is connected to the linkage structure (53). The linkage structure (53) connects several adjusting arms (41) to the transmission column (52). The rotating mechanism (6) is located at the lower end of the pressure regulating water pump (2); The angle adjustment structure (4) also includes several angle limiting plates (42), which correspond to several adjusting arms (41) respectively. The angle limiting plates (42) are set at the axial connection between the adjusting arm (41) and the side wall of the water supply pipe (1). The angle limiting plate (42) includes two limiting plate bodies (421), and one end of the adjusting arm (41) is located between the two limiting plate bodies (421). The angle adjustment structure (4) also includes a guide structure (43). The middle part of the adjustment arm (41) is provided with a mounting cavity to accommodate the guide structure (43). The guide structure (43) includes an arc frame (431) and two self-adjusting components (432). The arc-shaped frame (431) is set inside the installation cavity, and the flexible hose (31) is laid on the arc-shaped frame (431); Two self-adjusting components (432) are respectively disposed on both sides of the adjusting arm (41), and the two self-adjusting components (432) are connected to the arc frame (431); The guide structure (43) also includes rollers (433), and there are several rollers (433), which are evenly spaced on the arc frame (431); The self-adjusting assembly (432) includes a guide rod (4321), a slider (4322), and a first spring (4323); The guide rod (4321) is arranged parallel to the side of the adjusting arm (41), and both ends of the guide rod (4321) are connected to the adjusting arm (41); The slider (4322) is slidably mounted on the guide rod (4321), and the slider (4322) is connected to the arc frame (431); The first spring (4323) is sleeved on the guide rod (4321), and the two ends of the first spring (4323) abut against the end of the guide rod (4321) and the side of the slider (4322), respectively. The water pressure control structure (5) also includes a second spring (54), which is sleeved on the transmission column (52). The two ends of the second spring (54) abut against the end of the water supply pipe (1) and the pressure plate (51), respectively. The transmission column (52) has a first air guide channel (521) inside along its axial direction. The first air guide channel (521) is connected to the outside. The end of the transmission column (52) connected to the pressure plate (51) has several air holes (522) connected to the first air guide channel (521).

2. The greening maintenance spraying device with convenient angle control according to claim 1, characterized in that, The water pressure control structure (5) also includes a protective structure (55), which is located at the end of the transmission column (52). The protective structure (55) includes an exhaust block (551) and a cover plate (552). The exhaust block (551) has a second air guide channel (5511) in the middle, which is connected to the first air guide channel (521). The upper end of the exhaust block (551) is truncated cone-shaped. A cover plate (552) is placed on the upper end of the exhaust block (551). The cover plate (552) has a frustum-shaped inner cavity, and a gas flow channel is formed between the inner cavity of the cover plate (552) and the upper end of the exhaust block (551).

3. The easy angle control greening maintenance spraying device according to claim 2, characterized in that, The protective structure (55) also includes an annular insect-proof net (553), which is disposed between the exhaust block (551) and the cover plate (552), and the inner diameter of the annular insect-proof net (553) is larger than the inner diameter of the second air guide channel (5511).

4. The easy angle control greening maintenance spraying device according to claim 1, characterized in that, The rotating mechanism (6) includes a fixed plate (61), a main rotating shaft (62), and a rotating drive (63); The fixing plate (61) is horizontally set at the lower end of the pressure regulating water pump (2); The main shaft (62) is located in the middle of the fixed plate (61), and the axis of the main shaft (62) is collinear with the axis of the water supply pipe (1). One end of the main shaft (62) is connected to the fixed plate (61) through a bearing, and the other end of the main shaft (62) is fixedly connected to the pressure regulating water pump (2). The rotary drive (63) is located on one side of the main shaft (62), and the rotary drive (63) is connected to the main shaft (62) in a transmission connection.

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