Water-saving irrigation and pesticide and fertilizer spraying device

Abstract

The application belongs to the field of agricultural water-saving irrigation technology and specifically discloses a water-saving irrigation and pesticide and fertilizer spraying device, which comprises a deflection pipe, a water-saving spray pipe hingedly connected with the deflection pipe and in communication with the deflection pipe, a fixed pipe with an upper end rotatably connected with the deflection pipe and in communication with the deflection pipe, and a deflection plate rotatably arranged on the deflection pipe and swing-driven to drive the deflection pipe to rotate relative to the fixed pipe after being impacted by the water-saving spray pipe. A limiting rod is arranged on the water-saving spray pipe, a folded limiting groove is arranged on the fixed pipe, the limiting rod is in sliding fit with the folded limiting groove, and the deflection pipe drives the water-saving spray pipe to swing up and down when the deflection pipe rotates. On the basis of realizing horizontal plane rotation spraying, the device further introduces up-and-down swinging in the vertical plane, significantly expands the spraying coverage range of the near-center region, avoids the problem of weak spraying in the near-center region caused by the lack of up-and-down angle adjusting capacity of the traditional spray gun, and improves the spatial distribution uniformity of water, fertilizer and pesticide.

Description

Technical Field

[0001] This application relates to the field of agricultural water-saving irrigation technology, and in particular to a water-saving irrigation and pesticide / fertilizer spraying device. Background Technology

[0002] The agricultural water-saving irrigation pesticide and fertilizer spray gun is an agricultural spraying device that integrates irrigation, fertilization, and pesticide application functions. It is widely used in farmland, orchards, and gardens. This spray gun utilizes water power to achieve automatic rotational spraying, simultaneously and evenly dispensing water, liquid fertilizer, and pesticides. It is a crucial terminal execution component in modern agricultural water-saving irrigation systems.

[0003] However, existing spray guns on the market still have significant shortcomings in practical applications. Firstly, most existing spray guns' rotating mechanisms only support horizontal reciprocating rotation, lacking vertical angle adjustment capabilities. This results in crops being consistently exposed to insufficient water and fertilizer supply in the proximal region near the spray gun's axis during the spraying range, affecting the overall uniformity of crop growth. For example, consider a durable irrigation spray gun disclosed in publication number CN212468532U. Secondly, traditional spray guns using a lever-type reversing structure rely on a linkage mechanism for oscillating switching. This linkage requires significant reciprocating swings during operation, leading to high impact and frequent friction in the moving parts. Prolonged use can cause severe wear, resulting in reversing failure or jamming, significantly reducing the spray gun's lifespan and operational reliability.

[0004] Therefore, in view of the technical defects of existing spray guns, such as insufficient spatial rotational freedom and easy wear of the reversing mechanism, developing a water-saving irrigation pesticide and fertilizer spray gun that can achieve multi-dimensional adjustment, smooth reversing and durability has become an urgent technical problem to be solved in the field of agricultural irrigation equipment. Summary of the Invention

[0005] The purpose of this application is to provide a water-saving irrigation and pesticide / fertilizer spraying device to solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution of this application is as follows: Water-saving irrigation and pesticide / fertilizer spraying devices, including: Deflection tube; A water-saving spray pipe is hinged to and connected to the deflection pipe; A fixed tube, the upper end of which is rotatably connected to and communicates with the deflection tube; A deflector plate is rotatably mounted on the deflector pipe. After being impacted by the water-saving spray pipe, it swings and drives the deflector pipe to rotate relative to the fixed pipe. The deflector plate disperses and deflects the spray flow of the water-saving spray pipe. The water-saving spray pipe is provided with a limiting rod, and the fixed pipe is provided with a folded limiting groove. The limiting rod and the folded limiting groove are slidably engaged, so that when the deflection pipe rotates, it drives the water-saving spray pipe to swing up and down.

[0007] Furthermore, the deflection plate is provided with a guide plate, and the guide plate is inclined. The outer wall of the deflection tube is provided with a fixing plate, and the fixing plate is provided with a first striking part; The guide plate is configured to move away from the first striking part under the impact of the water flow from the water-saving nozzle.

[0008] Furthermore, a torsion spring is provided between the fixing plate and the deflection plate, and the torsion spring is configured to drive the guide plate closer to the first striking part.

[0009] Furthermore, the other end of the deflection plate is provided with a second striking part; The fixed tube is provided with a support frame, the support frame is provided with a sliding groove, an adjusting rod is slidably disposed in the sliding groove, and the adjusting rod is provided with a toothed groove; The support frame is rotatably equipped with a rotating gear disk that meshes with the tooth groove for transmission, and a fan-shaped striking block is provided on the end face of the rotating gear disk; the fan-shaped striking block has a striking state and a yielding state. The fixed tube is provided with two levers spaced circumferentially; the levers are used to drive the fan-shaped striking block to intermittently switch between striking and yielding states by abutting against the trigger block provided on the adjusting rod.

[0010] Furthermore, both the trigger block and the adjusting rod have cavities inside, and an unlocking rod is elastically provided in the cavity. One end of the unlocking rod is located outside the trigger block, and the other end is provided with a wedge-shaped block. An abutment rod is elastically provided on the outer wall of the adjusting rod, and an abutment hole is correspondingly provided on the inner wall of the sliding groove.

[0011] Furthermore, two unlocking levers are provided symmetrically; The trigger block is provided with a sliding post, and the unlocking rods are all slidably sleeved on the sliding post. A second spring is sleeved on the sliding post, and the two ends of the second spring abut against the two unlocking rods facing each other.

[0012] Furthermore, there are two sliding grooves, and the two sides of the trigger block face the two sliding grooves respectively; The trigger block is provided with a first magnet on each side that attracts the two sliding grooves respectively, and a second magnet that attracts the first magnet is provided on each of the two sliding grooves respectively.

[0013] Furthermore, the support frame is provided with a rotating sleeve, and a rotating shaft is rotatably provided in the rotating sleeve. The rotating gear disk and the fan-shaped striking block are both arranged on the rotating shaft.

[0014] Furthermore, the fixed tube is provided with a mounting plate, the mounting plate is provided with an arc-shaped plate, and the folded limiting groove is provided through the arc-shaped plate along the thickness direction.

[0015] Furthermore, an adjusting bolt is screwed onto the first striking part, and the screw-in end of the adjusting bolt is used to abut against the guide plate.

[0016] The water-saving irrigation and pesticide / fertilizer spraying device disclosed in this application, based on the horizontal plane rotational spraying, further introduces vertical oscillation in the vertical plane, which significantly expands the spraying coverage of the near-center area, avoids the problem of weak spraying in the near-center area caused by the lack of vertical angle adjustment capability of traditional spray guns, and improves the spatial uniformity of water, fertilizer and pesticide distribution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 for Figure 1 Enlarged view of a portion of point B in the middle; Figure 4 for Figure 1 Enlarged view of a portion of point C in the middle; Figure 5 This is another schematic diagram of the overall structure of this application; Figure 6 for Figure 5 Enlarged view of a portion of point D; Figure 7 for Figure 5 Enlarged view of a portion of point E in the middle; Figure 8 This is a schematic diagram of the support frame structure of this application; Figure 9 for Figure 8 Sectional view at point AA; Figure 10 for Figure 9 Another angle diagram; Figure 11 This is a schematic diagram of the internal structure of the cavity.

[0018] In the picture: 1. Deflection pipe; 2. Water-saving spray pipe; 20. Limiting rod; 3. Fixing pipe; 30. Arc plate; 300. Folded limiting groove; 4. Support frame; 40. Sliding groove; 41. Adjusting rod; 410. Trigger block; 411. Cavity; 412. Unlocking rod; 4120. Wedge block; 413. Sliding column; 414. Second spring; 42. Rotating gear plate; 43. Fan-shaped striking block; 44. Toggle rod; 45. Rotating sleeve; 46. Rotating shaft; 5. Torsion spring; 6. Fixing plate; 60. First striking part; 61. Adjusting bolt; 7. Deflection plate; 70. Guide plate; 71. Second striking part; 8. Abutment rod; 80. First spring; 81. Abutment hole. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0020] like Figure 1-11 As shown, Water-saving irrigation and pesticide / fertilizer spraying devices, including: Deflection tube 1; Water-saving spray pipe 2 is hinged to and connected to deflection pipe 1; Fixed tube 3, with its upper end rotatably connected to and in communication with deflection tube 1; The deflection plate 7 is rotatably mounted on the deflection pipe 1. After being impacted by the water-saving spray pipe 2, it swings and drives the deflection pipe 1 to rotate relative to the fixed pipe 3; the deflection plate 7 disperses and deflects the spray flow of the water-saving spray pipe 2. The water-saving spray pipe 2 is provided with a limiting rod 20, and the fixed pipe 3 is provided with a folded limiting groove 300. The limiting rod 20 and the folded limiting groove 300 are slidably engaged so that the water-saving spray pipe 2 can swing up and down when the deflection pipe 1 rotates.

[0021] Specifically, the water-saving irrigation and pesticide / fertilizer spraying device includes a fixed pipe 3, a deflection pipe 1, and a water-saving spray pipe 2.

[0022] The lower end of the fixed pipe 3 is usually connected to the water supply pipe. The upper end of the fixed pipe 3 is rotatably connected to the lower end of the deflection pipe 1 through a rotating sealing structure and maintains internal communication, so that the deflection pipe 1 can rotate freely in the horizontal plane relative to the fixed pipe 3.

[0023] The water-saving spray pipe 2 is hinged to the wall of the deflection pipe 1, and the inner cavity of the water-saving spray pipe 2 is connected to the inner cavity of the deflection pipe 1. Thus, water can enter the deflection pipe 1 from the fixed pipe 3, then enter the water-saving spray pipe 2, and finally be sprayed out from the nozzle of the water-saving spray pipe 2.

[0024] A deflector plate 7 is rotatably mounted on the deflector pipe 1, with one end of the deflector plate 7 located in the impact path of the water flow from the water-saving nozzle 2. When the water-saving nozzle 2 sprays high-speed water, the water flow impacts the deflector plate 7, causing the deflector plate 7 to oscillate under the influence of the water flow, thereby pushing the deflector pipe 1 to rotate relative to the fixed pipe 3. Simultaneously, a limit rod 20 is fixedly mounted on the water-saving nozzle 2, and a folded limit groove 300 is provided on the fixed pipe 3. This folded limit groove 300 has a horizontal extension section and a vertical extension section, i.e., a smoothly transitioning curved section. The limit rod 20 is slidably fitted within the folded limit groove 300. When the deflector pipe 1 rotates, the limit rod 20 moves along with the deflector pipe 1 and is constrained by the folded limit groove 300. Due to the shape design of the folded limit groove 300, the limit rod 20 undergoes a vertical position change while moving horizontally, thereby causing the water-saving nozzle 2 to oscillate up and down around its hinge point with the deflector pipe 1.

[0025] The deflection pipe 1 and the water-saving spray pipe 2 are connected by a flexible hose.

[0026] This device, in addition to achieving horizontal rotational spraying, further introduces vertical oscillation in the vertical plane, significantly expanding the spray coverage area in the near-center region. This avoids the problem of weak spraying in the near-center region caused by the lack of vertical angle adjustment capability in traditional spray guns, and improves the spatial uniformity of water, fertilizer and pesticide distribution.

[0027] Furthermore, the deflector plate 7 is provided with a guide plate 70, which is inclined. A fixing plate 6 is provided on the outer wall of the deflection tube 1, and a first striking part 60 is provided on the fixing plate 6; The deflector plate 70 is configured to move away from the first striking part 60 under the impact of the water flow from the water-saving nozzle 2.

[0028] A guide plate 70 is provided on the deflector plate 7, which is inclined relative to the axis of the water-saving nozzle 2. A fixing plate 6 is fixedly provided on the outer wall of the deflector pipe 1, and a first striking part 60 is provided on the fixing plate 6. The guide plate 70 is configured to move away from the first striking part 60 under the impact of the water flow sprayed from the water-saving nozzle 2.

[0029] Specifically, when water is sprayed from the water-saving nozzle 2, a portion of the water will impact the inclined guide plate 70. The guide plate 70 is deflected by the impact force of the water flow, and the direction of the movement causes the guide plate 70 to move away from the first striking part 60 on the fixed plate 6.

[0030] The guide plate 70 is driven by the power of the water flow to actively move away, eliminating the need for other energy-consuming power equipment. When the guide plate 70 moves away from the first striking part 60, a certain gap or relative angle change is formed between them. This change can be used to trigger subsequent reversing actions or adjust the initial position of the deflector plate 7, thereby changing the rotation direction and angle of the deflector tube 1. Through the cooperation between the guide plate 70 and the first striking part 60, the intermittent rotation of the deflector plate 7 and subsequent reversing triggering are achieved.

[0031] Furthermore, a torsion spring 5 is provided between the fixed plate 6 and the deflection plate 7, and the torsion spring 5 is configured to drive the guide plate 70 closer to the first striking part 60.

[0032] A torsion spring 5 is provided between the fixed plate 6 and the deflection plate 7. One end of the torsion spring 5 is connected to the fixed plate 6, and the other end is connected to the deflection plate 7. The preload of the torsion spring 5 is set to drive the guide plate 70 closer to the first striking part 60.

[0033] After the water flow impacts the guide plate 70, the deflector plate 7 deflects in one direction. Then, under the action of the torsion spring 5, the deflector plate 7 rotates in the opposite direction and strikes the first striking part 60. After being struck by the first striking part 60, the deflector tube 1 is driven to rotate, thereby realizing the gap movement of the deflector tube 1.

[0034] Furthermore, a second striking part 71 is provided at the other end of the deflection plate 7; A support frame 4 is provided on the fixed tube 3. A sliding groove 40 is provided on the support frame 4. An adjusting rod 41 is slidably provided in the sliding groove 40. A toothed groove is provided on the adjusting rod 41. The support frame 4 is rotatably equipped with a rotating gear disk 42 that meshes with the tooth groove for transmission. A fan-shaped striking block 43 is provided on the end face of the rotating gear disk 42. The fan-shaped striking block 43 has a striking state and a yielding state. The fixed tube 3 is provided with two levers 44 spaced circumferentially, and the two levers 44 correspond to the extreme positions of the forward and reverse rotation of the deflection tube 1, respectively. The levers 44 are used to drive the fan-shaped striking block 43 to intermittently switch between striking and yielding states by abutting against the trigger block 410 provided on the adjusting rod 41.

[0035] A second striking part 71 is provided at the end of the deflection plate 7 away from its rotation fulcrum. A support frame 4 is fixedly mounted on the fixed tube 3. A sliding groove 40 is provided on the support frame 4, and an adjusting rod 41 is slidably mounted in the sliding groove 40. The adjusting rod 41 has toothed grooves along its length. A rotating gear disk 42 that meshes with the toothed grooves is also rotatably mounted on the support frame 4. A fan-shaped striking block 43 is fixedly connected to the end face of the rotating gear disk 42. The fan-shaped striking block 43 has two working states: striking state and yielding state.

[0036] Two levers 44 are spaced apart circumferentially on the fixed tube 3. The levers 44 are used to drive the fan-shaped striking block 43 to intermittently switch between striking and yielding states by abutting against the trigger block 410 on the adjusting rod 41. When the deflection tube 1 rotates to a certain extreme position, the lever 44 on that side will touch the trigger block 410, causing the adjusting rod 41 to slide in the sliding groove 40. The adjusting rod 41 drives the rotating gear disk 42 to rotate through the meshing of the tooth groove, thereby switching the fan-shaped striking block 43 from the striking state to the yielding state, or vice versa.

[0037] When the fan-shaped striking block 43 is in the striking state, its protruding fan-shaped striking block 43 can collide with the second striking part 71 on the deflection guide plate 70, forcing the deflection plate 7 to swing rapidly in the opposite direction. At this time, the impact force of the water flow on the guide plate 70 is greater than the force of the torsion spring 5 on the deflection plate 7, so that the collision between the second striking part 71 and the fan-shaped striking block 43 becomes the reason for driving the deflection tube 1 to rotate, ultimately causing the deflection plate 7 to rotate in the opposite direction. Furthermore, since the fan-shaped striking block 43 reduces the deflection angle of the end of the deflection plate 7 that is originally away from the first striking part 60, the deflection plate 7 that rotates in the opposite direction will achieve a faster reversal.

[0038] When the reversal reaches a certain degree, another lever 44 contacts the trigger block 410. The trigger block 410 drives the adjusting rod 41 to slide, which further drives the fan-shaped striking block 43 to switch from the striking state to the yielding state. Since the fan-shaped striking block 43 is no longer in motion, the rotation of the deflection plate 7 returns to its original deflection angle. At this time, the force of the torsion spring 5 plays a dominant role. After being impacted by the water flow, the plate rebounds and strikes the fixed plate 6 under the action of the torsion spring 5.

[0039] By alternating the action of the two levers 44, the deflection tube 1 can automatically switch between forward and reverse directions. The switching action is completed by the rotation of the fan-shaped striking block 43, which avoids the large reciprocating motion of the traditional linkage mechanism, significantly reduces the wear of the moving parts, and improves the smoothness and reliability of the switching.

[0040] Furthermore, both the trigger block 410 and the adjusting rod 41 are provided with cavities 411. An unlocking rod 412 is elastically provided in the cavity 411. One end of the unlocking rod 412 is located outside the trigger block 410, and the other end is provided with a wedge block 4120. An abutment rod 8 is elastically provided on the outer wall of the adjusting rod 41, and an abutment hole 81 is correspondingly provided on the inner wall of the sliding groove 40.

[0041] To further improve the flexibility of adjustment and the reliability of locking, both the trigger block 410 and the adjusting rod 41 have a cavity 411 inside, in which an unlocking rod 412 is elastically disposed. One end of the unlocking rod 412 extends to the outside of the trigger block 410, facilitating external operation by being pressed by the lever 44, and the other end of the unlocking rod 412 has a wedge-shaped block 4120. An abutment rod 8 is elastically disposed on the outer wall of the adjusting rod 41, and a corresponding abutment hole 81 is disposed on the inner wall of the sliding groove 40. During normal operation, the abutment rod 8 extends into the abutment hole 81 under the action of the wedge-shaped block 4120, so that the adjusting rod 41 and the sliding groove 40 are locked, preventing the fan-shaped striking block 43 from switching. When the reversing angle needs to be adjusted, the lever 44 first presses the unlocking lever 412 and then contacts the trigger block 410. The unlocking lever 412 moves into the cavity 411, and the wedge block 4120 at its end moves accordingly and no longer pushes the abutment rod 8. The abutment rod 8 overcomes the elastic force and disengages from the abutment hole 81. At this time, the adjusting lever 41 can slide freely along the sliding groove 40, thereby changing the contact position between the adjusting lever 41 and the lever 44, and realizing the adjustment of the reversing angle. After the adjustment is in place, the wedge block 4120 on the other oppositely set unlocking lever 412 abuts against the abutment post on the other sliding groove 40, thereby driving the abutment rod 8 to overcome the elastic force and re-lock into the corresponding abutment hole 81, realizing automatic locking. This structure makes the adjustment of the reversing angle convenient and precise, and can maintain a stable locked state during operation, preventing accidental displacement due to vibration or other reasons.

[0042] The abutment rod 8 achieves its elastic movement through the first spring 80.

[0043] A limiting piece is provided on a section of the telescopic abutment hole 81 of the abutment rod 8 to prevent it from falling out of the adjustment rod 41 due to the action of the spring.

[0044] Furthermore, two unlocking levers 412 are symmetrically provided; The trigger block 410 is provided with a sliding post 413, and the unlocking rods 412 are slidably sleeved on the sliding post 413. A second spring 414 is sleeved on the sliding post 413, and the two ends of the second spring 414 abut against the two unlocking rods 412 facing each other respectively.

[0045] There are two unlocking levers 412, each corresponding to one of the two limit levers 20.

[0046] The sliding of the two unlocking levers 412 is achieved by the sliding post 413 and the second spring 414, respectively.

[0047] The second spring 414 provides elastic force for the two unlocking rods 412 to extend outward, ensuring that the unlocking rods 412 remain extended when no external force is applied, improving the balance and stability of the adjustment operation, making the unlocking of the adjustment rods 41 easier, and avoiding the jamming phenomenon that may be caused by unlocking on one side.

[0048] Furthermore, there are two sliding grooves 40, and the two sides of the trigger block 410 face the two sliding grooves 40 respectively; The trigger block 410 has a first magnet on each side that attracts the two sliding grooves 40, and a second magnet that attracts the first magnet is provided on each of the two sliding grooves 40.

[0049] The trigger block 410 has two sides facing the two sliding grooves 40 respectively, and each side of the trigger block 410 is provided with a first magnet. The two sliding grooves 40 are respectively provided with second magnets that attract each other to the two first magnets. The magnetic attraction between the first magnets and the second magnets provides an auxiliary positioning force for the adjusting rod 41 in the sliding grooves 40.

[0050] Meanwhile, setting the first magnet and the second magnet can drive the adjustment rod 41 to slide relative to the sliding groove 40 more quickly, that is, speed up the switching speed of the fan-shaped striking block 43 between the striking state and the yielding state.

[0051] This magnetic-assisted positioning structure complements the mechanical locking structure, ensuring the positional stability of the adjusting rod 41 in the working state and making the adjustment operation smoother, more precise, and faster.

[0052] Furthermore, the support frame 4 is provided with a rotating sleeve 45, and a rotating shaft 46 is rotatably provided in the rotating sleeve 45. The rotating gear 42 and the fan-shaped striking block 43 are both provided on the rotating shaft 46.

[0053] Regarding the rotational support of the sector-shaped striking block 43, a rotating sleeve 45 is provided on the support frame 4, and a rotating shaft 46 is rotatably mounted in the rotating sleeve 45. Both the rotating gear disk 42 and the sector-shaped striking block 43 are fixedly mounted on the rotating shaft 46. The rotating sleeve 45 provides stable rotational support for the rotating shaft 46, ensuring precise meshing between the rotating gear disk 42 and the tooth groove of the adjusting rod 41. A lubricating layer or rolling bearing can be provided between the rotating shaft 46 and the rotating sleeve 45 to further reduce friction and ensure flexible and reliable switching between the striking state and the yielding state of the sector-shaped striking block 43.

[0054] Meanwhile, the rotating gear 42 and the fan-shaped striking block 43 are integrated on the same rotating shaft 46, which ensures the synchronization of their movements. This allows the linear motion of the adjusting rod 41 to be accurately converted into the rotational motion of the fan-shaped striking block 43, thus improving the accuracy of the reversing control.

[0055] Furthermore, the fixed tube 3 is provided with an installation plate, and the installation plate is provided with an arc-shaped plate 30, and the folded limiting groove 300 is provided through the arc-shaped plate 30 along the thickness direction.

[0056] The fixed tube 3 is provided with a mounting plate, and an arc plate 30 is fixedly installed on the mounting plate. The aforementioned folded limiting groove 300 is provided through the arc plate 30 along its thickness direction.

[0057] The arc shape of the arc plate 30 matches the rotation trajectory of the deflection tube 1, making the movement of the limiting rod 20 in the folded limiting groove 300 smoother. The folded limiting groove 300 extends through the thickness direction of the arc plate 30, facilitating manufacturing and ensuring sufficient contact length between the limiting rod 20 and the groove wall, preventing the limiting rod 20 from detaching from the groove. Furthermore, the arc plate 30 can be designed as two detachable and replaceable parts, facilitating the installation of the limiting rod 20 and improving the installation flexibility of the device.

[0058] Furthermore, an adjusting bolt 61 is screwed onto the first striking part 60, and the screw-in end of the adjusting bolt 61 is used to abut against the guide plate 70.

[0059] To further fine-tune the initial relative position between the guide plate 70 and the first striking part 60, an adjusting bolt 61 is screwed onto the first striking part 60. The screw-in end of the adjusting bolt 61 extends towards the guide plate 70 and is used to abut against the guide plate 70. By rotating the adjusting bolt 61, the extension length of the screw-in end of the adjusting bolt 61 can be changed, thereby changing the deflection angle of the guide plate 70 when the adjusting bolt 61 contacts the guide plate 70. When the water flow impacts the guide plate 70, the guide plate 70 starts to move from the initial position abutting against the adjusting bolt 61. Therefore, the position of the adjusting bolt 61 determines the initial deflection angle and movement range of the guide plate 70. By finely adjusting the adjusting bolt 61, the swing sensitivity and reversing threshold of the deflecting guide plate 70 can be adjusted, enabling the device to adapt to different water pressure and flow conditions and ensuring stable operation under a wide range of working conditions.

[0060] Traditional rotary spray guns can only oscillate back and forth in the horizontal plane, and their spray trajectory is a fan-shaped or circular pattern centered on the spray gun. However, the area near the spray gun's axis is often poorly covered due to the high water velocity and limited jet angle, requiring additional irrigation or increased overall irrigation intensity, resulting in water waste. This device mechanically links horizontal rotation with vertical pitch, allowing the spray gun to automatically oscillate up and down while sweeping horizontally. This composite spatial motion makes the droplet density more consistent across near, medium, and long ranges, completely eliminating the "near-center drought zone" inherent in traditional spray guns. Therefore, while meeting the crop's water requirements, this device can reduce the irrigation water quota per unit area, making it particularly suitable for water-sensitive transition zones in drip irrigation belts, seedling nurseries, and densely planted crop areas that require high uniformity.

[0061] This device features a unique linkage mechanism between vertical oscillation and horizontal rotation, allowing the sprayed pesticide and fertilizer droplets to penetrate the crop canopy and reach the undersides of leaves and the lower and middle parts of the plant. Traditional spray guns that can only rotate horizontally tend to deposit pesticides on the top leaves, making it difficult for the lower and middle parts and the undersides of leaves to reach the affected areas. This often necessitates increasing the pesticide concentration or the number of applications to achieve the desired control effect, wasting pesticides and fertilizers and exacerbating environmental pollution.

[0062] In addition, by periodically changing the spray gun's elevation angle, this device causes droplets to impact crops at different incident angles, significantly improving the leaf back adhesion rate and canopy penetration rate, thereby reducing the amount of pesticides and fertilizers required per unit area.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A water-saving irrigation and pesticide / fertilizer spraying device, characterized in that, include: Deflection tube (1); The water-saving spray pipe (2) is hinged to and connected to the deflection pipe (1); The fixed tube (3) is rotatably connected to the deflection tube (1) at its upper end and communicates with it; The deflection plate (7) is rotatably mounted on the deflection pipe (1). After being impacted by the water-saving spray pipe (2), it swings and drives the deflection pipe (1) to rotate relative to the fixed pipe (3). The deflection plate (7) causes the spray of the water-saving spray pipe (2) to be dispersed and deflected. The water-saving spray pipe (2) is provided with a limiting rod (20), and the fixed pipe (3) is provided with a folded limiting groove. The limiting rod (20) and the folded limiting groove are slidably engaged, so that when the deflection pipe (1) rotates, the water-saving spray pipe (2) will swing up and down.

2. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 1, characterized in that, The deflection plate (7) is provided with a guide plate (70), and the guide plate (70) is inclined. The outer wall of the deflection tube (1) is provided with a fixing plate (6), and the fixing plate (6) is provided with a first striking part (60). The guide plate (70) is configured to move away from the first striking part (60) under the impact of the water flow from the water-saving nozzle (2).

3. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 2, characterized in that, A torsion spring (5) is provided between the fixed plate (6) and the deflection plate (7), and the torsion spring (5) is configured to drive the guide plate (70) closer to the first striking part (60).

4. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 1, characterized in that, The other end of the deflection plate (7) is provided with a second striking part (71). The fixed tube (3) is provided with a support frame (4), the support frame (4) is provided with a sliding groove (40), an adjusting rod (41) is slidably provided in the sliding groove (40), and the adjusting rod (41) is provided with a toothed groove; The support frame (4) is rotatably provided with a rotating gear disk (42) that meshes with the tooth groove for transmission. A fan-shaped striking block (43) is provided on the end face of the rotating gear disk (42). The fan-shaped striking block (43) has a striking state and a yielding state. The fixed tube (3) is provided with two levers (44) spaced circumferentially; the levers (44) are used to drive the fan-shaped striking block (43) to switch intermittently between striking state and yielding state by abutting against the trigger block (410) provided on the adjusting rod (41).

5. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 4, characterized in that, Both the trigger block (410) and the adjusting rod (41) are provided with cavities (411). An unlocking rod (412) is elastically provided in the cavity (411). One end of the unlocking rod (412) is located outside the trigger block (410), and the other end is provided with a wedge block (4120). An abutment rod (8) is elastically provided on the outer wall of the adjusting rod (41), and an abutment hole (81) is correspondingly provided on the inner wall of the sliding groove (40).

6. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 5, characterized in that, Two unlocking levers (412) are provided symmetrically; The trigger block (410) is provided with a sliding post (413), and the unlocking rods (412) are all slidably sleeved on the sliding post (413). A second spring (414) is sleeved on the sliding post (413), and the two ends of the second spring (414) abut against the two unlocking rods (412) facing each other respectively.

7. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 6, characterized in that, There are two sliding grooves (40), and the two sides of the trigger block (410) face the two sliding grooves (40) respectively. The trigger block (410) is provided with first magnets on both sides that attract each other to the two sliding grooves (40), and the two sliding grooves (40) are provided with second magnets that attract each other to the first magnets.

8. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 5, characterized in that, The support frame (4) is provided with a rotating sleeve (45), and a rotating shaft (46) is rotatably provided in the rotating sleeve (45). The rotating toothed disc (42) and the fan-shaped striking block (43) are both arranged on the rotating shaft (46).

9. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 1, characterized in that, The fixed tube (3) is provided with an installation plate, and the installation plate is provided with an arc plate (30). The folded limiting groove (300) is provided through the arc plate (30) along the thickness direction.

10. The water-saving irrigation and pesticide / fertilizer spraying device according to claim 2, characterized in that, An adjusting bolt (61) is screwed onto the first striking part (60), and the screw-in end of the adjusting bolt (61) is used to abut against the guide plate (70).

Images