A liquid spraying device and a road spraying system

Abstract

This utility model relates to the technical field of liquid spraying, specifically a liquid spraying device and a road spraying system. The liquid spraying device of this utility model includes a nozzle and an elastic element. The nozzle is connected to a pump supply pipeline for the liquid to be sprayed and is used to spray the liquid outwards in a linear water flow. The elastic element has a fixed section, an arc-shaped section, and a scattering section arranged sequentially along its length. The fixed section is used to secure the elastic element, the scattering section is located on the spray path of the linear water flow, and the arc-shaped section is used to cause elastic vibration of the scattering section when the linear water flow impacts it, thus causing the linear water flow to scatter in multiple directions. This technical solution uses the elastic element to generate multi-directional scattering of the linear water flow. While maintaining the original range advantage of the liquid to be sprayed, it utilizes the vibration and deformation characteristics of the elastic element to achieve a geometric increase in the coverage area of ​​the liquid to be sprayed, thereby improving the scattering effect of the liquid spraying.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid spraying, and in particular to a liquid spraying device and a road spraying system. Background Technology

[0002] Liquid scattering spraying has wide applications in agricultural and forestry irrigation, municipal sanitation, landscaping, and road maintenance. Existing technologies mainly include liquid rocker-arm nozzles, rotary nozzles, and fan-shaped scattering nozzles. However, actual experiments have shown that none of these nozzle types can achieve satisfactory scattering effects, resulting in limited scattering performance during application. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a liquid spraying device and road spraying system, which improves the scattering effect of liquid spraying.

[0004] The present invention provides the following solutions:

[0005] In a first aspect, embodiments of the present invention provide a liquid spraying device, the device comprising:

[0006] The nozzle is connected to the pump supply line of the liquid to be sprayed and is used to spray the liquid to be sprayed outward in a linear water flow.

[0007] The elastic element has a fixed section, an arc-shaped section and a scattering section sequentially along its length.

[0008] The fixed section is used to fasten the elastic element, the scattering section is located on the jet path of the linear water flow, and the arc-shaped section is used to cause the elastic vibration generated by the scattering section when the linear water flow impacts the scattering section, so that the linear water flow scatters in multiple directions.

[0009] In an optional embodiment, the device further includes:

[0010] The limiting component, connected to the elastic element, is used to limit the undulation distance of the arc segment that generates elastic vibration.

[0011] In one alternative embodiment, the limiting component includes:

[0012] The limiting rod has one end tightly attached to the scattering section and the other end has an external thread;

[0013] The first nut, which is connected to the external thread of the limiting rod, is located on the first side of the fixed section;

[0014] The second nut, which is connected to the external thread of the limiting rod, is located on the second side of the fixed section. The first side and the second side are two parallel and opposite planes of the fixed section. The first nut and the second nut are used to install the limiting rod on the fixed section.

[0015] In one alternative embodiment, the end of the limiting rod that is in close contact with the scattering section has a ball-head structure, and the end that is away from the scattering section has an adjustment bolt.

[0016] In one optional embodiment, the fixed section has a mounting hole for connecting the nozzle, and the length direction of the fixed section is perpendicular to the linear water flow.

[0017] In one alternative embodiment, the end of the scattering segment away from the arc segment is arc-shaped and curves outward.

[0018] In one alternative embodiment, a counterweight is provided at the end of the scattering segment away from the arc segment.

[0019] In one alternative embodiment, the scattering section is provided with a guide groove.

[0020] In one alternative embodiment, the guide groove is arranged along the length direction of the scattering section.

[0021] Secondly, this utility model embodiment also provides a road spraying system, which includes any of the liquid spraying devices mentioned in the first aspect.

[0022] In one alternative embodiment, the pump supply line of the road spraying system is equipped with a heater for heating the liquid to be sprayed.

[0023] Compared with the prior art, the liquid spraying device and road spraying system of this utility model have the following advantages:

[0024] This utility model discloses a liquid spraying device comprising a nozzle and an elastic element. The nozzle is connected to a pump supply pipeline for the liquid to be sprayed and is used to spray the liquid outward in a linear water flow. The elastic element has a fixed section, an arc-shaped section, and a scattering section arranged sequentially along its length. The fixed section is used to secure the elastic element, the scattering section is located on the spray path of the linear water flow, and the arc-shaped section is used to cause elastic vibration of the scattering section when the linear water flow impacts it, thereby causing the linear water flow to scatter in multiple directions. This technical solution uses the elastic element to generate multi-directional scattering of the linear water flow. While maintaining the original range advantage of the liquid to be sprayed, it utilizes the vibration and deformation characteristics of the elastic element to achieve a geometric increase in the coverage area of ​​the liquid to be sprayed, thus improving the scattering effect of the liquid spraying. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural diagram of a liquid spraying device provided in an embodiment of this utility model;

[0027] Figure 2 This is a front view structural diagram of a liquid spraying device provided in an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached diagram: 1-elastic element, 2-limiting assembly, 3-nozzle, 4-linear water flow;

[0029] 11-Fixed section, 12-Arc-shaped section, 13-Diffusing section, 14-Counterweight block, 15-Guide channel;

[0030] 21-Limit rod, 22-First nut, 23-Second nut, 24-Adjusting bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the embodiments of the present utility model.

[0032] Currently used liquid rocker arm nozzles and rotating nozzles spray water in a parabolic trajectory. Liquid rocker arm nozzles utilize water jets striking a rocker arm to create nozzle rotation, using the reciprocating motion of the rocker arm to break the water jet and achieve scattering. However, this requires a large water flow, limiting the deployment of too many nozzles at once. Furthermore, they often employ mechanical rotation or complex flow-guiding structures for angle adjustment, increasing manufacturing costs and failure rates. Rotating nozzles generate impact through water flow, resulting in a shorter spray distance. The rotating structure of rotating nozzles is also complex, prone to wear, and can become jammed and unable to rotate. Furthermore, fan-shaped scattering nozzles also suffer from short spray distances, and due to the small size of the water droplets, they are easily affected by wind when operating outdoors. Traditional linear nozzles spray in a straight line, resulting in a relatively concentrated water flow that fails to create a scattering effect. The following embodiments of this utility model will specifically illustrate how to solve the above-mentioned technical problems.

[0033] Please see Figure 1 , Figure 1 This utility model provides a three-dimensional structural diagram of a liquid spraying device, which includes a nozzle 3 and an elastic element 1.

[0034] The nozzle 3 can be a metal linear water flow nozzle, such as a hollow conical linear nozzle; or it can be an atomizing nozzle, which is adjusted to spray a linear water flow. The nozzle 3 is connected to the pump supply line of the liquid to be sprayed, and is used to spray the liquid to be sprayed outwards in a linear water flow 4. The pump supply line can be a plastic pipe or a metal pipe, with one end connected to the nozzle 3 and the other end connected to a water pump. The water pump is connected to a power source to enable pumping operation, and the water pump's inlet pipe is connected to a storage tank of the liquid to be sprayed.

[0035] The elastic element 1 can be a metal strip structure, for example, made by bending a stainless steel strip. The elastic element 1 has a fixed section 11, an arc-shaped section 12 and a scattering section 13 arranged sequentially along its length. The fixed section 11 is used to fasten the elastic element 1. The scattering section 13 is located on the jet path of the linear water flow 4. The arc-shaped section 12 is used to cause the elastic vibration generated by the scattering section 13 when the linear water flow 4 impacts the scattering section 13, so that the linear water flow 4 scatters in multiple directions.

[0036] Please see Figure 2 , Figure 2 This is a schematic diagram of the liquid spraying device. A mounting hole for connecting the nozzle 3 is provided on the fixed section 11, and the length direction of the fixed section 11 is perpendicular to the linear water flow. When the nozzle 3 has external threads on its outer circumference, the elastic element 1 can be installed on the nozzle 3 using two nuts. When scattering the liquid to be sprayed through the liquid spraying device, the nozzle 3 is connected to the pump supply pipeline; the other end of the pump supply pipeline is connected to the water pump, and the water pump inlet is connected to the storage tank; the elastic element 1 is fixed to the nozzle 3 or the pump supply pipeline, so that the scattering section 13 is located on the spray path of the nozzle 3. The water pump is started, and the liquid in the storage tank is transported to the nozzle 3 through the supply pipeline. The nozzle 3 sprays the liquid as a linear water flow, impacting the scattering section 13 of the elastic element 1. The linear water flow impacts the scattering section 13 of the elastic element 1, and the arc-shaped section 12 generates elastic vibration, causing the linear water flow 4 to scatter in multiple directions to the target area to be sprayed.

[0037] Please continue reading. Figure 1 and Figure 2 The arc segment 12 can be configured as a curved arc structure with a central angle greater than a preset value, such as 180-220°, forming a wrap-around arc structure, which is a semi-closed ring. This structure has a greater curvature and can form a larger deformation space under the impact of water flow. The elastic vibration wave generated by the linear water flow impact is transmitted along the arc segment 12 and repeatedly reflected within the arc trajectory, thereby amplifying the elastic vibration amplitude and frequency of the scattering segment 13. It can be understood that the stronger the water flow impact force, the greater the vibration amplitude of the scattering segment 13 and the wider the spraying range; conversely, the smaller the spraying range. The material and shape of the elastic element 1 determine its response frequency and scattering mode. The arc segment 12 acts as a combination of a spring and a flexible arm, allowing the scattering segment 13 to be repeatedly subjected to force and recover.

[0038] While the scattering section 13 of the elastic element 1 experiences elastic vibration due to the impact of linear water flow, achieving multi-directional scattering, the vibration amplitude is uncontrollable and difficult to adapt to different scattering application scenarios. Therefore, in one specific embodiment, the liquid spraying device also includes a limiting component 2.

[0039] The limiting component 2 is connected to the elastic element 1. The limiting component 2 is used to limit the undulation distance of the elastic vibration generated by the arc segment 12. The limiting component 2 can be set on the outside of the arc segment 12, and can be an elastic damping pad, a stop block, etc. By limiting the maximum displacement of the arc segment 12 when it is impacted, that is, limiting the amplitude of its undulation vibration, the limiting component 2 can adjust the maximum allowable vibration displacement of the scattering segment 13 according to actual needs.

[0040] For example, the limiting assembly 2 includes a limiting rod 21, a first nut 22, and a second nut 23. The limiting rod 21 can be configured as a screw, with one end of the limiting rod 21 closely abutting the scattering section 13 and the other end having an external thread. The first nut 22 is connected to the external thread of the limiting rod 21 and is located on the first side of the fixing section 11; the second nut 23 is also connected to the external thread of the limiting rod 21 and is located on the second side of the fixing section 11. The first side and the second side are two parallel and opposite planes of the fixing section 11. The first nut 22 and the second nut 23 are used to install the limiting rod 21 onto the fixing section 11. The first nut 22 and the second nut 23 can be configured as knurled nuts or as external hexagonal nuts.

[0041] When implementing vibration limiting for the scattering section 13, the limiting rod 21 is passed through the through hole in the fixed section 11, and the first nut 22 and the second nut 23 are tightened, so that they press against the two sides of the fixed section 11 respectively, thereby achieving axially stable installation of the limiting rod 21. The maximum displacement range of the scattering section 13 is set by changing the relative position between the nuts (i.e., the extension length of the limiting rod 21). It should be noted that the double-nut clamping structure presses the fixed section 11 with two opposite sides, giving the limiting rod 21 good vibration resistance and installation structural strength, preventing problems such as limiting displacement or structural loosening during continuous vibration.

[0042] Furthermore, the end of the limiting rod 21 that is in close contact with the scattering section 13 has a ball-head structure, while the end away from the scattering section 13 is provided with an adjusting bolt 24. The adjusting bolt 24 can be configured as a knurled bolt, an external hexagonal bolt, or an external square bolt. The installation length of the limiting rod 21 can be adjusted by adjusting the adjusting bolt 24, thereby adjusting the scattering range of the linear water flow. A scale or a limiting retaining ring can also be set on the adjusting bolt 24 to achieve accurate adjustment of the limiting rod 21.

[0043] In practical applications, if the end of the scattering section 13 is designed as a straight structure, the linear water flow may only scatter within the plane of symmetry in the incident direction, limiting the scattering angle and preventing the formation of a spray range with a larger wrap angle. Therefore, in one specific embodiment, the end of the scattering section 13 furthest from the arc-shaped section 12 is arc-shaped and curves outward. The arc-shaped profile of the scattering section 13 can be a circular arc, a parabola, or a flexible curve, guiding and facilitating the water flow. After the linear water flow impacts the scattering section 13, it forms a larger scattering range. The outward curving structure formed by the arc-shaped section 12 guides some of the water flow along the edge, achieving fan-shaped or lateral scattering, thus enabling the linear water flow to exhibit a larger three-dimensional diffusion range.

[0044] When the water pressure is low or the spray duration is short, the scattering section 13 may not generate sufficient vibration, resulting in a limited spraying range. Therefore, a counterweight 14 is provided at the end of the scattering section 13 furthest from the arc-shaped section 12. The counterweight 14 is used to adjust the degree of elastic deformation of the elastic element 1. The counterweight 14 can be a metal block welded to the end of the elastic element 1; it can also be configured as a screw installed at the end of the elastic element 1; or it can be installed by welding, screwing, snapping, riveting, etc., to ensure it does not fall off under high-frequency vibration. By increasing the mass of the free end of the scattering section 13, the counterweight 14 improves its inertia and kinetic energy conversion capability, effectively reducing the natural vibration frequency of the elastic element 1, making it easier to generate low-frequency large-amplitude vibrations under linear water flow impact, thereby increasing the scattering range.

[0045] Furthermore, the scattering section 13 is provided with a guide groove 15, which can be arranged along the length of the scattering section 13. The guide groove 15 is a shallow groove or grooving structure, set on the surface of the scattering section 13. The groove shape can be linear, radial, mesh-like, or spiral. The depth and width of the guide groove 15 are designed according to the jet pressure, water flow rate, and liquid type, and are not specifically limited here. The guide groove 15 is used to guide the linear water flow during scattering and to prevent the linear water flow from splashing in the vertical direction.

[0046] Based on the same technical concept as the liquid spraying device, this utility model embodiment also provides a road spraying system, which includes any of the aforementioned liquid spraying devices. The road spraying system can be installed on both sides of the road to spray de-icing agents.

[0047] The pump supply line of the road spraying system is equipped with a heater to heat the liquid to be sprayed. The heater can be heated electrically or by gas. When applying de-icing agents to roads, the temperature is low during the road icing period, and the liquid de-icing agent is at risk of freezing. Adding a heater can preheat the liquid de-icing agent, improve its fluidity, further improve spraying efficiency, and more effectively prevent road icing.

[0048] It is understandable that when performing road snow melting, the scattering angle can be adjusted to horizontal directional spraying. While ensuring coverage of the lane width, the installation height can be maintained at an ideal height of 0.2-0.5 meters above the ground. This avoids upward water mist obstructing the driver's vision while still fully covering the lane width. Furthermore, due to the low water consumption of this liquid spraying device, the number of devices that can be deployed on the same pipeline can be multiplied. This structure eliminates complex transmission components, using metal elastic parts to significantly reduce manufacturing costs while ensuring reliability. It combines the dual advantages of wide-area irrigation for landscaping and precise spraying for road maintenance. This liquid spraying device can achieve horizontal scattering spraying, making it particularly suitable for areas with limited overhead space and requiring near-horizontal spraying, such as green space maintenance under bridges and the application of de-icing agents to roads.

[0049] The technical solution provided in this embodiment of the utility model has at least the following technical effects or advantages:

[0050] 1. Increased spray coverage area: The high-speed linear water flow from the nozzle impacts the elastic element and is dispersed into water droplets moving in a certain direction, significantly increasing the spray coverage area and meeting the needs of uniform spraying of large areas of liquid.

[0051] 2. Maintaining range: The elastic deformation of the elastic element can change the water flow impact angle in real time, further adjusting the movement direction and distance of the water droplets, ensuring that while increasing the coverage area, a large range can still be maintained.

[0052] 3. High flexibility: The installation of the elastic component can be adjusted, allowing for flexible changes in the spraying mode according to different spraying areas and requirements. Due to the high outlet pressure of the nozzle, the water consumption required to drive the elastic component is relatively small, making it suitable for spraying scenarios that require spraying but not a large amount of water, effectively reducing liquid consumption.

[0053] 4. It can save on the diameter of the liquid supply pipe and the flow rate of the water pump. Since it can spray with a small amount of water, the diameter of the supply pipe can be reduced or more nozzles can be connected to the supply pipe. At the same time, a small flow rate water pump can be used.

[0054] 5. It can be sprayed in a horizontal state. When the elastic element is adjusted to a horizontal parallel state, it can achieve a basically horizontal spraying state. It is especially suitable for areas with limited upper space and requiring near-horizontal spraying, such as greening maintenance under bridges and spreading de-icing agents on roads.

[0055] 6. The technical solution has a simple structure, is easy to implement, has a compact overall structure, a reasonable design, is easy to manufacture and install, and has high practicality and economy.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

Claims

1. A liquid spraying device, characterized in that, The device includes: The nozzle is connected to a pump supply line for the liquid to be sprayed, and the nozzle is used to spray the liquid to be sprayed outward in a linear water flow. An elastic element, wherein the elastic element is provided with a fixed section, an arc-shaped section and a scattering section in sequence along its length direction; The fixed section is used to fasten the elastic element, the scattering section is located on the jet path of the linear water flow, and the arc-shaped section is used to cause the scattering section to vibrate elastically when the linear water flow impacts the scattering section, so that the linear water flow scatters in multiple directions.

2. The liquid spraying device according to claim 1, characterized in that, The device further includes: A limiting component is connected to the elastic element, and the limiting component is used to limit the undulation distance of the arc segment that generates elastic vibration.

3. The liquid spraying device according to claim 2, characterized in that, The limiting component includes: The limiting rod has one end tightly attached to the scattering section and the other end has an external thread; The first nut is connected to the external thread of the limiting rod and is located on the first side of the fixed section; The second nut, which is externally threaded to the limiting rod, is located on the second side of the fixed section. The first side and the second side are two parallel and opposite planes of the fixed section. The first nut and the second nut are used to install the limiting rod onto the fixed section.

4. The liquid spraying device according to claim 3, characterized in that, The end of the limiting rod that is in close contact with the scattering section has a ball head structure, and the end that is away from the scattering section has an adjustment bolt.

5. The liquid spraying device according to claim 1, characterized in that, The fixed section has a mounting hole for connecting the nozzle, and the length direction of the fixed section is perpendicular to the linear water flow.

6. The liquid spraying device according to claim 1, characterized in that, The scattering segment is arc-shaped at the end furthest from the arc segment and curves outward.

7. The liquid spraying device according to claim 1, characterized in that, A counterweight is provided at the end of the scattering segment away from the arc segment.

8. The liquid spraying device according to claim 1, characterized in that, The scattering section is equipped with a flow guide groove.

9. A road spraying system, characterized in that, The road spraying system includes the liquid spraying device as described in any one of claims 1-8.

10. The road spraying system according to claim 9, characterized in that, The road spraying system is equipped with a heater on its pump supply pipeline to heat the liquid to be sprayed.

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