Arc-shaped spray pipe with double rows of nozzles

Abstract

The invention discloses an arc-shaped spray pipe provided with double rows of nozzles, and relates to the technical field of spray pipes, and the arc-shaped spray pipe provided with double rows of nozzles is characterized by comprising a water supply device for rotationally atomizing water flow to form scattering, and two steering devices arranged on the water supply device, the steering devices are used for adjusting the spraying direction, the adjusting devices are arranged on the two steering devices correspondingly, the adjusting devices are used for increasing the water flow form and achieving diversification, and the water supply device is arranged and rotated, so that water flow is not concentrated into a single water column any more, is scattered in an umbrella shape and covers a wider area; the spraying range is effectively widened, spraying work in different states can be achieved through the arrangement of the steering device, the using effect of the device is improved, the overall functionality of the device is improved, the state of water flow is changed through the arrangement of the adjusting device, the device can adapt to different working conditions, and therefore the using effect is improved.

Description

Technical Field

[0001] This invention relates to the field of nozzle technology, and more specifically, to an arc-shaped nozzle with a double row of nozzles. Background Technology

[0002] Fluid jet devices, such as nozzles and spray heads, are widely used in daily life, agricultural production, industrial cleaning, and fire fighting. Their core performance indicators include jet morphology, impact force, coverage area, and directional controllability. Traditional technologies often use single-function dedicated nozzles to meet the needs of different scenarios, resulting in complex systems, inconvenient switching, and poor adaptability.

[0003] In existing technologies, to achieve separate control of water flow pattern, spray direction, and flow rate, a combination of individual mechanisms is often used. This involves independently designing atomizing, steering, and throttling mechanisms and then mechanically assembling them. While this approach can achieve a single function, it suffers from systemic defects: the atomized water droplets are prone to uneven distribution due to angle changes during steering, affecting coverage uniformity; adjusting the outlet size often leads to pressure loss, making it difficult to maintain both atomization effect and impact force simultaneously; and the independent operation of each mechanism results in poor coordination, making it impossible to achieve efficient and stable overall spray performance under dynamic conditions. Therefore, how to break through the traditional design mindset of "simple stacking of functional mechanisms" and achieve coupling and synergy between atomization, steering, and adjustment through an integrated structure, so that the device exhibits a "whole greater than the sum of its parts" technical effect in terms of expanded coverage, precise orientation, stable flow rate, and energy saving, has become a pressing technical challenge in this field.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes an arc-shaped nozzle with double-row nozzles. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an arc-shaped nozzle with dual-row nozzles. Through an integrated rotating atomization, dual-degree-of-freedom steering, and dynamic orifice adjustment coupling structure, it solves the technical problems of fixed functions and inconvenient switching in traditional spraying devices. At the same time, through the synergistic effect of variable outlet orifice diameter and rotating atomization flow field, it resolves the contradiction between coverage, impact force, and energy efficiency. Furthermore, through the self-locking characteristics of worm gear transmission and the parallel scheme of dual-row nozzles, it solves the stability and functionality issues under multiple operating conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an arc-shaped nozzle with double-row nozzles, comprising: a water supply device, wherein the water supply device is used to rotate and atomize the water flow to form scattering; Two steering devices are installed on the water supply device, which are used to adjust the direction of the spray. Adjustment devices are respectively installed on the two steering devices, which are used to increase the water flow pattern and achieve diversification.

[0007] Preferably, the water supply device includes a support platform, with water inlet holes on both sides of the top of the support platform, guide plates fixedly connected to the inner walls of the two water inlet holes, and water outlet plates connected to the middle of the guide plates fixedly connected to the top of the two water inlet holes, and a water supply pipe fixedly connected to the inner wall of the water inlet hole at the rear end of the support platform.

[0008] Preferably, the steering device includes a fixed pipe fixedly connected to the top of the support platform, and the fixed pipe is fixedly connected to the water outlet plate. A first mounting bracket is fixedly connected to one side of the fixed pipe. A first worm gear is rotatably connected to the inner wall of the first mounting bracket. A first knob is fixedly connected to one end of the first worm gear. A steering mechanism is provided at the top of the fixed pipe.

[0009] Preferably, the steering mechanism includes a steering tube that rotates in a sealed manner with the top end of a fixed tube, and a first worm wheel that meshes with a first worm gear is fixedly connected to the side wall of the steering tube. A steering module is provided at the top end of the first worm wheel.

[0010] Preferably, the adjusting device includes a connecting pipe that rotates in a sealed manner with the top of the steering pipe, a collar is slidably connected to the side wall of the connecting pipe, screws are movably connected to both sides of the bottom end of the collar, a sleeve is threaded onto the side wall of the screw, an adjusting mechanism is provided at the top of the collar, and a mating mechanism is provided on the inner wall of the connecting pipe.

[0011] Preferably, the adjusting mechanism includes a plurality of connecting frames rotatably connected to the top end of the collar, the other end of each of the plurality of connecting frames being rotatably connected to a connecting rod, and the other end of each of the plurality of connecting rods being rotatably connected to a mounting base.

[0012] Preferably, the mating mechanism includes a plurality of first slides arranged in a circumferential array with the inner wall of the connecting pipe, a first slide plate slidably connected to the inner wall of the first slide, a plurality of second slides arranged in a circumferential array with the inner wall of the connecting pipe, a second slide plate slidably connected to the inner wall of the plurality of second slides, a second adjusting plate hinged to the top of the plurality of second slide plates, a first adjusting plate hinged to the top of the plurality of first slide plates, and the plurality of first adjusting plates fixedly connected to the mounting base, a first fixing rod fixedly connected to the side wall of the plurality of second adjusting plates, a limiting plate fixedly sleeved on the side wall of the first fixing rod, and a second fixing rod fixedly connected to both sides of the rear end of the first adjusting plate, and two second fixing rods located at the rear ends of two adjacent first adjusting plates slidably connected to both sides of the inner wall of the limiting plate.

[0013] Preferably, the steering module includes a second worm gear fixedly sleeved on the side wall of the connecting pipe, a second mounting bracket fixedly connected to the side wall of the steering pipe, a second worm rotatably connected to the inner wall of the second mounting bracket, a second knob fixedly connected to one end of the second worm, and the second worm meshing with the second worm gear, and the bottom ends of the two sleeves rotatably connected to the top end of the connecting pipe respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, by setting up a water supply device and connecting the water supply pipe to the water supply system, after the water flows into the water inlet, the water flow gains angular momentum in the guide plate. After being sprayed out, due to the centrifugal force of rotation, the water column will spread outward and break into finer water droplets, forming a cone-shaped spray. It is then sprayed from the water outlet plate into the turning device. Furthermore, the rotation causes the water flow to no longer be concentrated into a single water column, but to scatter in an umbrella shape, covering a wider area and effectively improving the spray range.

[0015] 2. In this invention, by setting a steering device, before use, according to the customer's needs, the second knob drives the second worm gear to rotate, and the second worm gear drives the second worm wheel to rotate, so that the adjusting device can rotate on the steering pipe. Since the top of the steering pipe is an inclined pipe, the spray angle of the adjusting device can be adjusted. At the same time, by rotating the first knob, the first worm gear is driven to rotate, so that the first worm gear drives the first worm wheel to rotate, which can drive the steering pipe to rotate horizontally at the top of the fixed pipe, thereby adjusting the spray direction of the adjusting device, thus effectively expanding the overall spray range of the device. Moreover, the water supply device is equipped with two steering devices, which can realize spraying work in different states, improve the use effect of the equipment, and improve the overall functionality of the device.

[0016] 3. In this invention, by setting an adjustment device, rotating the screw drives the collar to slide on the side wall of the connecting pipe, allowing the collar to drive the connecting frame to move synchronously. As the collar moves, it drives the connecting rod to rotate, causing the connecting rod to drive the first adjusting plate to expand outward through the mounting seat. This allows the first adjusting plate to slide along the inner wall of the limiting plate, changing the opening size of the tubular structure formed by the first and second adjusting plates, thereby altering the state of the water flow. This allows the device to adapt to different working conditions, improving its performance. The outlet size adjustment is essentially flow control. When coverage rather than impact is needed, the outlet is opened wider, and the rotating atomization effect makes the water feel plentiful even with a small flow rate. When a strong impact is needed, the outlet is closed, achieving a higher outlet flow rate and impact force under the same water supply pressure. When the water supply pressure fluctuates, the outlet size can be adjusted to stabilize the outlet performance. By precisely controlling the outlet size, excessive water usage can be fundamentally avoided. The atomization mode can provide a feeling of sufficient water volume at low flow rates. In scenarios requiring low pressure and large coverage, the system can reduce the water pump power, maintaining only the pressure required for atomization, thereby saving energy. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the water supply device in this invention; Figure 3 This is a schematic diagram of the steering device in this invention; Figure 4 This is a schematic diagram of the steering device from another perspective in this invention; Figure 5 This is a schematic diagram of the adjusting device in this invention; Figure 6 This is a schematic diagram of the adjustment device from another perspective in this invention; Figure 7 This is a partial structural schematic diagram of the adjusting device in this invention; Figure 8 This is a partial structural schematic diagram of the adjustment device in this invention from another perspective; Figure 9 In this invention Figure 7 Enlarged diagram of point A in the middle.

[0018] 1. Water supply device; 101. Support platform; 102. Water inlet; 103. Guide plate; 104. Water outlet plate; 105. Water supply pipe; 2. Steering device; 201. Fixed pipe; 202. First worm gear; 203. First mounting bracket; 204. First worm; 205. First knob; 206. Steering pipe; 207. Second knob; 208. Second mounting bracket; 209. Second worm; 3. Adjustment device; 30 1. Connecting pipe; 302. Second worm gear; 303. Sleeve; 304. Screw; 305. Collar; 306. Connecting frame; 307. Connecting rod; 308. First adjusting plate; 309. Second adjusting plate; 310. Mounting base; 311. First slide; 312. Second slide; 313. First sliding plate; 314. Second sliding plate; 315. First fixing rod; 316. Limiting plate; 317. Second fixing rod. Detailed Implementation

[0019] like Figure 1 - Figure 9 As shown, the present invention provides an arc-shaped nozzle with double-row nozzles, including: a water supply device 1, which is used to rotate and atomize the water flow to form scattering. Two steering devices 2 are installed on the water supply device 1, and the steering devices 2 are used to adjust the spray direction; Adjustment devices 3 are respectively installed on the two steering devices 2. Adjustment devices 3 are used to increase the water flow pattern and achieve diversification.

[0020] The water supply device 1 includes a support platform 101. Water inlets 102 are provided on both sides of the top of the support platform 101. Guide plates 103 are fixedly connected to the inner walls of the two water inlets 102. Water outlet plates 104, which communicate with the middle of the guide plates 103, are fixedly connected to the top of the two water inlets 102. A water supply pipe 105, which communicates with the inner wall of the water inlets 102, is fixedly connected to the rear end of the support platform 101. When the water supply pipe 105 is connected to the water supply system, the water flow enters the water inlet 102 and gains angular momentum in the guide plates 103. After being sprayed out, the water column will spread outward and break into finer water droplets due to the centrifugal force of rotation, forming a cone-shaped spray. The water is then sprayed into the deflecting device 2 from the water outlet plate 104. The rotation causes the water flow to no longer be concentrated into a single water column, but to scatter in an umbrella shape, covering a wider area and effectively improving the spray range.

[0021] The steering device 2 includes a fixed pipe 201 fixedly connected to the top of the support platform 101, and the fixed pipe 201 is fixedly connected to the water outlet plate 104. A first mounting bracket 203 is fixedly connected to one side of the fixed pipe 201. A first worm 204 is rotatably connected to the inner wall of the first mounting bracket 203. By utilizing the cooperation between the second worm 209 and the second worm wheel 302, and the cooperation between the first worm 204 and the first worm wheel 202, the self-locking function of the worm wheel and worm can effectively fix the position of the device, preventing rebound and loosening, and further improving stability. A first knob 205 is fixedly connected to one end of the first worm 204. A steering mechanism is provided at the top of the fixed pipe 201. Before use, according to the customer's needs, the second knob 207 drives the second worm 209 to rotate, and the second worm 209 drives the second worm wheel 302 to rotate, so that the adjusting device 3 can rotate on the steering pipe 206. Since the top of the steering pipe 206 is an inclined pipe, the spray angle of the adjusting device 3 can be adjusted.

[0022] The steering mechanism includes a steering pipe 206 that rotates in a sealed manner with the top end of the fixed pipe 201. A first worm wheel 202 that meshes with the first worm 204 is fixedly connected to the side wall of the steering pipe 206. A steering module is provided at the top end of the first worm wheel 202. The steering pipe 206 is a tubular mechanism with a horizontal bottom and an inclined top, which allows the direction of water jet to be adjusted when the steering pipe 206 rotates with the fixed pipe 201. When the top end of the steering pipe 206 rotates with the adjusting device 3, the angle of the jet can be adjusted, thus achieving diversified adjustment.

[0023] The adjusting device 3 includes a connecting pipe 301 that is rotatably sealed to the top of the steering pipe 206. A collar 305 is slidably connected to the side wall of the connecting pipe 301. Screws 304 are movably connected to both sides of the bottom end of the collar 305. A sleeve 303 is threaded onto the side wall of the screw 304. An adjusting mechanism is provided at the top of the collar 305. A mating mechanism is provided on the inner wall of the connecting pipe 301. The adjusting mechanism includes several connecting brackets 306 that are rotatably connected to the top of the collar 305. Connecting rods 307 are rotatably connected to the other ends of the connecting brackets 306. Mounting seats 310 are rotatably connected to the other ends of the connecting rods 307. The adjusting mechanism is driven by rotating the screws 304. The collar 305 slides on the side wall of the connecting pipe 301, allowing the collar 305 to drive the connecting frame 306 to move synchronously. As the collar 305 moves, it drives the connecting rod 307 to rotate, thereby causing the connecting rod 307 to drive the first adjusting plate 308 to expand outward through the mounting base 310. This allows the first adjusting plate 308 to slide along the inner wall of the limiting plate 316, changing the opening size of the tubular structure formed by the first adjusting plate 308 and the second adjusting plate 309. This changes the state of the water flow, allowing the device to adapt to different working conditions and improve its performance.

[0024] The cooperating mechanism includes a plurality of first slides 311 arranged circumferentially on the inner wall of the connecting pipe 301. A first slide plate 313 is slidably connected to the inner wall of each first slide 311. A plurality of second slides 312 are arranged circumferentially on the inner wall of the connecting pipe 301. The first slides 311 and second slides 312, arranged on the inner wall of the connecting pipe 301, allow for adaptive adjustment when the second adjusting plate 309 and the first adjusting plate 308 are flipped, improving the stability of the device and preventing loosening. A second slide plate 314 is slidably connected to the inner wall of each second slide 312. A second adjusting plate 309 is hinged to the top of each second slide plate 314. A first adjusting plate 308 is hinged to the top of each first slide plate 313, and the first adjusting plates 308 are fixedly connected to the mounting base 310. A first fixing rod 315 is fixedly connected to the side wall of each second adjusting plate 309, and a limiting plate is fixedly sleeved on the side wall of the first fixing rod 315. 316. Two second fixing rods 317 are fixedly connected to the rear ends of the first adjusting plate 308 on both sides. The two second fixing rods 317 located at the rear ends of two adjacent first adjusting plates 308 are slidably connected to the inner walls of the limiting plate 316. The outlet size adjustment is essentially a flow control. When coverage rather than impact is needed, the outlet is opened to utilize the rotational atomization effect, so that even if the flow rate is not large, the water volume can feel abundant. When a strong impact is needed, the outlet is reduced to obtain a higher outlet flow rate and impact force under the same water supply pressure. When the water supply pressure fluctuates, the outlet size can be adjusted to stabilize the outlet performance, effectively realizing the diversified use of the nozzle. By precisely controlling the outlet size, excessive water use is fundamentally avoided. The atomization mode can provide a feeling of sufficient water volume at low flow rates. In scenarios requiring low pressure and large coverage, the system can reduce the water pump power and only maintain the pressure required for atomization, thereby saving energy.

[0025] When the collar 305 moves to its lowest position under the rotation of the screw 304, the opening is at its largest, and the rotating water flow is fully diffused, forming a gentle, wide-coverage conical atomization pattern for showering, humidification, and large-area pre-humidification. When the collar 305 moves upward, the opening gradually narrows, the rotating water flow is constrained, and the centrifugal force competes with the axial pressure to form a mixing mode. The water droplets become finer, but the impact force is enhanced. When the collar 305 moves to its highest position, the tubular mechanism formed by the first adjusting plate 308 and the second adjusting plate 309 is at its minimum state. At this time, the extremely strong constraint force suppresses the rotational diffusion, converting the rotational kinetic energy into turbulent energy, and spraying out a highly concentrated, extremely powerful rotating vortex jet, which can be used for deep cleaning and long-distance spraying.

[0026] The steering module includes a second worm gear 302 fixedly sleeved on the side wall of the connecting pipe 301. A second mounting bracket 208 is fixedly connected to the side wall of the steering pipe 206. A second worm 209 is rotatably connected to the inner wall of the second mounting bracket 208. A second knob 207 is fixedly connected to one end of the second worm 209, and the second worm 209 meshes with the second worm gear 302. The bottom ends of two sleeves 303 are rotatably connected to the top end of the connecting pipe 301. By rotating the first knob 205, the first worm 204 is driven to rotate, which in turn drives the first worm gear 202 to rotate. This allows the steering pipe 206 to rotate horizontally at the top end of the fixed pipe 201, thus adjusting the spray direction of the adjusting device 3. This effectively expands the overall spray range of the device. Furthermore, the water supply device 1 is equipped with two steering devices 2, which can realize different spraying states, improve the use effect of the equipment, and enhance the overall functionality of the device.

[0027] Working principle: By setting up a water supply device 1 and connecting the water supply pipe 105 to the water supply system, the water flows into the inlet hole 102. After the water flows into the guide plate 103, it gains angular momentum. After being sprayed out, due to the centrifugal force of rotation, the water column will diffuse outward and break into finer water droplets, forming a cone-shaped spray. It is then sprayed from the outlet plate 104 into the diverting device 2. The rotation causes the water flow to no longer be concentrated into a single water column, but to scatter in an umbrella shape, covering a wider area. Before use, according to the customer's needs, the second knob 207 drives the second worm 209 to rotate, and the second worm 209 drives the second worm wheel 302 to rotate, which allows the adjusting device 3 to rotate on the diverting pipe 206. Since the top of the diverting pipe 206 is an inclined pipe, the spray angle of the adjusting device 3 can be adjusted. At the same time, by rotating the first knob 205, the first worm 204 is driven to rotate, which in turn drives the first worm wheel 202 to rotate, which can drive the rotation of the first worm wheel 202. The horizontal rotation of the pipe 206 at the top of the fixed pipe 201 allows for adjustment of the spray direction of the regulating device 3, thereby effectively expanding the overall spray range of the device. Two steering devices 2 are installed on the water supply device 1 to enable spraying in different states. Rotating the screw 304 causes the collar 305 to slide on the side wall of the connecting pipe 301, allowing the collar 305 to move synchronously with the connecting frame 306. As the collar 305 moves, it causes the connecting rod 307 to rotate, which in turn causes the connecting rod 307 to expand outwards via the mounting base 310. This allows the first adjusting plate 308 to slide along the inner wall of the limiting plate 316, changing the opening size of the tubular structure formed by the first adjusting plate 308 and the second adjusting plate 309, thus altering the water flow state and enabling the device to adapt to different working conditions, thereby improving its performance. When the collar 305 moves to the lowest position under the rotation of the screw 304, the opening is at its largest, and the rotating water flow is fully diffused to form a gentle, wide-coverage cone-shaped atomization pattern, which is used for showering, humidification, and large-area pre-humidification. As the collar 305 moves upward, the opening gradually narrows, the rotating water flow is constrained, and the centrifugal force competes with the axial pressure, forming a mixing mode. The water droplets become finer, but the impact force increases. When the collar 305 moves to the top, the tubular mechanism formed by the first adjusting plate 308 and the second adjusting plate 309 is in its minimum state. At this time, the extremely strong constraint force suppresses the rotational diffusion, converting the rotational kinetic energy into turbulent energy, and ejecting a highly concentrated and extremely powerful rotating vortex jet, which can be used for deep cleaning and long-distance spraying.

[0028] All parts not covered in this invention are the same as or can be implemented using existing technologies.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. An arc-shaped nozzle provided with double rows of nozzles, characterized in that, Include: Water supply device (1) for rotating atomization of water flow to form scattering; Two steering devices (2) provided on the water supply device (1), the steering device (2) is used for adjusting the spray direction; Adjusting device (3) provided on the two steering devices (2) respectively, the adjusting device (3) is used for increasing water flow form, realizing diversification.

2. The arc-shaped nozzle with double-row nozzles according to claim 1, characterized in that: The water supply device (1) includes a support table (101), the support table (101) top two sides are respectively provided with water inlet hole (102), the inner wall of two water inlet hole (102) is fixedly connected with guide plate (103), two water inlet hole (102) top is fixedly connected with water outlet plate (104) communicated with guide plate (103) middle part, the support table (101) rear end is fixedly connected with water inlet hole (102) inner wall fixed communication water supply pipe (105).

3. The arc-shaped nozzle with double-row nozzles according to claim 2, characterized in that: The steering device (2) includes a fixed tube (201) fixedly connected with the top of the support table (101), and the fixed tube (201) is fixedly communicated with the water outlet plate (104), one side of the fixed tube (201) is fixedly connected with the first mounting frame (203), the inner wall of the first mounting frame (203) is rotatably connected with the first worm (204), one end of the first worm (204) is fixedly connected with the first knob (205), the top of the fixed tube (201) is provided with a steering mechanism.

4. The contour nozzle with dual row of nozzles according to claim 3, characterized in that: The steering mechanism includes a steering tube (206) rotatably connected with the top of the fixed tube (201), the side wall of the steering tube (206) is fixedly connected with the first worm (204) meshing connection first worm wheel (202), the top of the first worm wheel (202) is provided with a steering module.

5. An arcuate nozzle having dual rows of nozzles as defined in claim 4, characterized in that: The adjusting device (3) includes a communication pipe (301) rotatably connected with the top of the steering tube (206), the side wall of the communication pipe (301) is slidably connected with the sleeve ring (305), the bottom of the sleeve ring (305) two sides are movably connected with the screw rod (304), the side wall of the screw rod (304) is threadedly sleeved with the sleeve (303), the top of the sleeve ring (305) is provided with an adjusting mechanism, and the inner wall of the communication pipe (301) is provided with a matching mechanism.

6. An arcuate nozzle having dual rows of nozzles as defined in claim 5, characterized in that: The adjusting mechanism includes a plurality of connecting frames (306) rotatably connected with the top of the sleeve ring (305), a plurality of connecting rods (307) are rotatably connected with the other end of the connecting frame (306) respectively, and a plurality of mounting seats (310) are rotatably connected with the other end of the connecting rod (307) respectively.

7. An arcuate nozzle with dual rows of nozzles as defined in claim 6, characterized in that: The matching mechanism comprises a plurality of first sliding frames (311) arranged circumferentially on the inner wall of the communicating pipe (301), a first sliding plate (313) being slidably connected to the inner wall of the first sliding frame (311), a plurality of second sliding frames (312) being arranged circumferentially on the inner wall of the communicating pipe (301), a second sliding plate (314) being slidably connected to the inner wall of the second sliding frame (312), a second adjusting plate (309) being hingedly connected to the top end of the second sliding plate (314), a first adjusting plate (308) being hingedly connected to the top end of the first sliding plate (313), the first adjusting plate (308) being fixedly connected to the mounting seat (310), a first fixing rod (315) being fixedly connected to the side wall of the second adjusting plate (309), a limiting plate (316) being fixedly sleeved on the side wall of the first fixing rod (315), a second fixing rod (317) being fixedly connected to the rear end of the first adjusting plate (308) on both sides, and the two second fixing rods (317) located at the rear end of the adjacent two first adjusting plates (308) being slidably connected to the inner wall of the limiting plate (316).

8. The contoured nozzle with dual rows of nozzles of claim 5, wherein: The steering module comprises a second worm gear (302) fixedly sleeved on the side wall of the communicating pipe (301), a second mounting rack (208) fixedly connected to the side wall of the steering pipe (206), a second worm (209) rotatably connected to the inner wall of the second mounting rack (208), a second knob (207) fixedly connected to one end of the second worm (209), and the second worm (209) engaged with the second worm gear (302), and the bottom end of the two sleeves (303) rotatably connected to the top end of the communicating pipe (301).

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