Electrostatic spray adjustable nozzle structure

Abstract

The present application relates to the field of electrostatic spraying, and particularly relates to a structure of an adjustable electrostatic spraying nozzle, which comprises a guide cover and a plurality of detachable electrodes and a nozzle connecting structure, the guide cover is located in front of the nozzle connecting structure, the detachable electrodes are arranged at a nozzle opening, and the nozzle connecting structure is provided with a plurality of nozzles close to the side of the guide cover. The present application has the advantages of convenient use, application in different occasions, changeable charging capacity, high atomization efficiency, safety and reliability and the like.

Description

Technical Field

[0001] This invention relates to the field of electrostatic spraying, and in particular to an adjustable electrostatic spray nozzle structure. Background Technology

[0002] However, traditional spray products have limitations, restricting the spray liquid to the surface directly in front of the nozzle, thus limiting the operating range and affecting disinfection effectiveness and work efficiency. Electrostatic spraying technology can significantly improve the adsorption effect between the spray liquid and the target object, thereby increasing the utilization efficiency of the pesticide and saving costs. Electrostatic spraying technology uses electrostatic force to form the liquid into tiny charged droplets. These charged droplets are attracted and adsorbed by the surface of the target object, achieving better coverage and penetration. Compared with traditional spraying technology, electrostatic spraying technology can distribute the pesticide more evenly on the surface of the target object, providing better disinfection effect. In electrostatic spraying technology, the nozzle is a crucial component. Chinese patent document CN113272073B discloses an electrostatic spraying device, comprising: a housing defining a first receiving space and having opposite first and second ends, wherein the first end has a first opening at a position in a first direction from the second end to the first end that is furthest from the second end; a tubular member defining a second receiving space and having a third end furthest from the second end in the first direction and a fourth end close to the second end, wherein the third end has a second opening at a position furthest from the fourth end in the first direction, and the second opening is located on the side of the first opening furthest from the second end in the first direction; and a nozzle, at least partially located within the... In the second receiving space, the nozzle includes a spray opening located at the position furthest from the second end in the first direction, the spray opening being located on the side of the second opening facing the fourth end in the first direction, the nozzle being configured to spray droplets toward the second opening via the spray opening, the droplets exiting the electrostatic spray device in a charged state from the second opening; and an airflow providing member configured to provide airflow exiting the electrostatic spray device via the first opening and the second opening, the electrostatic spray device further including a guide connected to the nozzle, at least a portion of the guide being located on the side of the fourth end of the tubular member furthest from the third end and outside the second receiving space.

[0003] However, the electrostatic spraying device described above still has the following shortcomings: First, it is difficult to meet the needs of different occasions and cannot flexibly adjust the spray charge. Second, its improvement in spray charge and atomization efficiency is limited, resulting in low efficiency, difficulty in ensuring spray uniformity and coating quality, and in achieving precise control of the spraying process. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems of the prior art and provide an adjustable electrostatic spray nozzle structure, which has the advantages of being easy to use, applicable to different occasions, having adjustable charge, high atomization efficiency, and being safe and reliable.

[0005] This invention is achieved through the following technical solution: an adjustable electrostatic spray nozzle structure, characterized in that it includes a guide cover and several detachable electrodes and nozzle connection structures. The guide cover is located in front of the nozzle connection structures, the detachable electrodes are disposed at the nozzle opening, and several nozzles are provided on the nozzle connection structure near the guide cover. The detachable electrodes allow for the addition or removal of electrodes in different situations, thereby changing the electric field strength, the atomization effect of the sprayed liquid, and the charge carried by the droplets. The retractable guide cover allows for the adjustment of the distance between the electrodes and the nozzles in different situations, thereby changing the electric field strength, the atomization effect of the sprayed liquid, and the charge carried by the droplets.

[0006] Preferably, the detachable electrode has a conical top and a stud at the bottom, which is screwed into an open screw hole on the nozzle opening. The electrode can be disassembled via the threaded hole, facilitating installation or removal in various situations. The threaded structure at the bottom can be tightly connected to the screw hole on the outer ring of the guide cover, ensuring the stability and safety of the electrode.

[0007] Preferably, the inner side of the guide cover is cylindrical and located outside the nozzle connecting structure, with a funnel-shaped opening. The guide cover is telescopic, and the nozzle connecting structure is provided with several slide rails on which the guide cover can slide. The funnel-shaped opening facilitates the spraying of atomized liquid, helps improve fluid flow and uniformity, and is convenient for large-area spraying. The slide rails allow the guide cover to slide freely, facilitating the adjustment of the distance between the electrode located at the nozzle opening and the nozzle located at the nozzle connecting structure, thereby changing the electric field strength, the atomization effect of the sprayed liquid, and the charge carried by the droplets.

[0008] Preferably, multiple open screw holes surround the nozzle opening, forming several regular polygons. Detachable electrodes can be screwed onto these screw holes as needed, and can be arranged into shapes such as equilateral triangles, squares, and regular pentagons, thereby altering the electric field strength, the atomization effect of the sprayed liquid, and the charge carried by the droplets.

[0009] Preferably, the guide cover has a locking nut on its inner side, and the slide rail has several fixing screw holes that are adapted to the locking nut. Using multiple fixing screw holes as fixing positions provides multiple settings, facilitating the adjustment of the guide cover to a suitable position for fixation, and allowing for convenient application by the user in different situations.

[0010] Preferably, the nozzle connection structure has an adjustable air duct in the center, and the nozzles are symmetrically arranged around the air duct. The central adjustable air duct can adjust the wind speed to cope with different situations and enhance the atomization effect. The nozzles surrounding the air duct facilitate the wind to disperse the liquid and spray the liquid, which helps to improve the flow and uniformity of the fluid and facilitates large-area spraying.

[0011] Preferably, several detachable conical electrodes surround the nozzle. The top of each conical electrode is higher than the top of the nozzle, and the bottom is provided with a stud, which is screwed to the bottom screw hole provided on the front end face of the nozzle connection structure. The conical electrodes beside the nozzle can be installed or removed as needed, and their height can also be finely adjusted to change the electric field strength, the atomization effect of the sprayed liquid, and the charge on the droplets. The electrodes installed here perform the initial charging atomization, and in conjunction with the electrodes located at the opening, they achieve a multiple charging effect on the droplets, thereby improving the charge on the liquid and the atomization effect.

[0012] Preferably, the outer portion of the connection structure between the guide cover and the nozzle is an insulating layer. This protects operators from the risk of electric shock due to accidental contact, improving safety and reliability.

[0013] Preferably, the nozzle opening is rotatable, with a rotation angle of -90° to 90°. By adjusting the angle of the nozzle opening, the relative position between the detachable electrode and the nozzle is changed, thereby altering the electric field strength, the atomization effect of the sprayed liquid, and the charge carried by the droplets.

[0014] The present invention has the following beneficial effects: 1. Applicable to different occasions: The electrodes are all detachable. To cope with different occasions, it is necessary to change the electric field strength, atomization effect and droplet charge. The electrodes are installed in the preset screw holes, the number and position of the electrodes are changed, and the distance between the electrodes and the nozzle and the rotatable nozzle opening are changed by the slide rail, so as to achieve the function of being applied to different occasions.

[0015] 2. Excellent atomization effect and high droplet charge: It is equipped with multiple sets of electrodes. The first set is installed next to the nozzle to perform the first charging, and the second set is installed at the opening to perform the second charging. By charging the droplets multiple times, the atomization effect and droplet charge are greatly improved.

[0016] 3. Safe, reliable, and easy to use: Multiple positions are installed on the slide rail, allowing personnel to fix the preset spray effect at each position for easy use; the connection structure between the guide cover and the nozzle is equipped with an insulation layer to protect operators from the risk of electric shock due to accidental contact, thus improving safety and reliability. Attached Figure Description

[0017] Figure 1This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the nozzle opening portion of the present invention; Figure 3 This is a schematic diagram of the nozzle assembly structure of the present invention; Figure 4 This is a partial enlarged view of the open screw hole of the present invention; Figure 5 This is a schematic diagram of the nozzle connection structure of the present invention.

[0018] Illustration: 1. Spray gun, 2. Guide cover, 3. Nozzle connection structure, 4. Detachable electrode, 5. Open screw hole, 6. Nozzle opening, 7. Slide rail, 8. Fixing screw hole, 9. Locking nut, 10. Air duct, 11. Nozzle, 12. Conical electrode, 13. Bottom screw hole. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 5 As shown, the main structure of this invention includes a guide cover 2, a nozzle connection structure 3, and a detachable electrode 4. The inner side of the guide cover 2 is cylindrical, and the opening is funnel-shaped. The nozzle connection structure 3 is equipped with a slide rail 7, and the inner side of the nozzle 2 is connected to the nozzle connection structure through the slide rail 7. The detachable electrode 4 is located at the nozzle opening 6 and can be disassembled to change its quantity and position for different occasions, thereby changing the electric field strength, the atomization effect of the sprayed liquid, and the charge on the droplets.

[0021] like Figure 1 In one embodiment shown, the spray gun 1 contains a battery, a water tank, and other structures. The nozzle is equipped with an adjustable electrostatic spray nozzle structure according to the present invention. The distance between the detachable electrode 4 and the nozzle 11 can be changed via the slide rail 7 and the locking nut 9, thereby altering the droplet charging effect, spray quality, spray angle, and area range. By installing or removing the detachable electrode 4, changing its number and position can optimize the performance and effect of the electrostatic spray system, including controlling spray uniformity, coverage, direction, and spray shape, improving spray efficiency, and reducing leakage and stray spray problems. Depending on the specific application, an appropriate number and position of electrodes can be selected to obtain the best electrostatic spray effect.

[0022] like Figure 2 and Figure 4As shown, the nozzle opening 6 is equipped with three detachable electrodes 4 and multiple open screw holes 5 for mounting the detachable electrodes 4. The detachable electrodes 4 have a conical top and a stud at the bottom, which screws into the open screw holes 5 on the nozzle opening 6. Furthermore, the nozzle opening 6 is rotatable, with a rotation angle of -90° to 90°, which can be used in different situations and can change the direction and range of the spray. Several open screw holes 5 can form equilateral triangles, squares, pentagons, and hexagons. By changing the number and position of the detachable electrodes 4, the performance and effect of the electrostatic spray system can be optimized: uniformity and spray quality can be altered. Changing the number of detachable electrodes 4 and appropriately adjusting their positions can change the uniformity and quality of the spray. By properly placing the detachable electrodes 4, the electric field distribution and droplet charging effect can be better controlled, resulting in more uniform spray droplets and a more consistent size distribution, thus improving spray quality. The spray coverage area can also be changed. By altering the number and optimized position of the detachable electrodes 4, the spray coverage area can be changed. The interaction of the electric fields generated by each detachable electrode 4 can expand the electric field range and achieve a wider spray area. Adapting to workpieces or surfaces of different sizes and shapes; controlling the spray direction and shape; appropriately adjusting the position and layout of the detachable electrodes 4 can achieve precise control of the spray direction and shape. By optimizing the position of the detachable electrodes 4, the spray stream can be sprayed at the required angle and shape to meet the needs of specific applications; changing the spray efficiency; increasing the number of detachable electrodes 4 can improve the spray efficiency of the electrostatic spray system. More detachable electrodes 4 can provide more charged area, increase the droplet charging effect and the generated electrostatic force, thereby improving spray efficiency and speed; reducing leakage and stray spray; by reasonably arranging the detachable electrodes 4, the stability of the electric field can be better controlled, reducing the efficiency decrease and droplet splashing caused by leakage and stray spray.

[0023] like Figure 3As shown, the nozzle connection structure 3 has an adjustable air duct 10 in the center, and nozzles 11 are symmetrically arranged around the air duct 10. Several detachable conical electrodes 12 are arranged around the nozzles 11. The top of the conical electrodes 12 is higher than the top of the nozzles 11, and the bottom is provided with studs, which are screwed to the bottom screw holes (13) provided on the front end face of the nozzle connection structure 3. The cooperation of the conical electrodes 12 and the detachable electrodes 4 to perform secondary charging on the droplets. The combination of the adjustable air duct 10 and secondary charging can achieve spray control, spray volume control, prevention of spray drift, improvement of spray coverage, enhancement of electrostatic adsorption effect and control of spray particle size. Spray control and positioning: The adjustable air duct 10 can control the direction and speed of the airflow, thereby positioning and controlling the landing position of the spray. By adjusting the angle and opening size of the air duct, the spray can be accurately guided to the required position to achieve spray coating of the target area. Spray volume control: By adjusting the opening size of the air duct, the spray volume can be controlled. A smaller opening can control the spray volume. To limit airflow and reduce the amount of spray, a larger opening can increase airflow and spray volume, which is very useful in coating or spraying operations where precise control of droplet volume is required; to prevent spray drift, the adjustable air duct 10 can help reduce spray drift and diffusion. By reasonably adjusting the angle and shape of the air duct, the airflow can be confined to the target area, preventing the spray from spreading around the spraying equipment; to improve spray coverage, secondary charging can make droplets have the same charge and repel each other, thereby improving the uniformity and coverage of the spray. By introducing secondary charging into the spray flow, droplets can be better dispersed and uniformly cover the target surface; Enhanced electrostatic adsorption: Secondary charging can enhance electrostatic adsorption, allowing charged droplets to adhere better to the target surface. This helps improve spraying efficiency and coating quality, and reduces overspraying, underspraying, or spray loss. Controlled droplet size: Secondary charging can affect the droplet size distribution. By appropriately adjusting the intensity and method of secondary charging, droplet size can be controlled to meet the needs of specific applications.

[0024] like Figure 5As shown, the nozzle connection structure 3 is equipped with a slide rail 7, through which the guide cover 2 can slide up and down, thereby changing the distance between the detachable electrode 4 and the nozzle 11. This changes the droplet charging effect, spray quality, spray angle, and area range. Changing the droplet charging effect: a smaller distance between the detachable electrode 4 and the nozzle 11 increases the electric field strength and gradient, more effectively charging the droplets. This helps generate more charged droplets and a higher charge, improving the electrostatic spraying effect. Changing the spray quality: appropriately adjusting the distance between the detachable electrode 4 and the nozzle 11 can improve the uniformity and size distribution of the droplets. Different distances... This allows for better dispersion and uniformity of droplets during spraying, thus improving spray quality. It also controls the spray coverage area; changing the distance between the detachable electrode 4 and the nozzle 11 adjusts the droplet spray angle and spray area. A smaller distance may result in a steeper spray angle, while a larger distance may produce a gentler spray, thus controlling the spray coverage area. Furthermore, it reduces leakage and stray spray. By appropriately setting the distance between the detachable electrode 4 and the nozzle 11, leakage and stray spray phenomena in the electrostatic spray system can be reduced. A smaller distance helps maintain the stability of the electric field, reducing the possibility of leakage and stray spray. Simultaneously, the slide rail is equipped with multiple fixing screw holes 8, which are fixed to the locking nuts 9 on the guide cover 2, creating multiple fixed positions. This allows users to pre-set the most suitable position for different scenarios, facilitating operation.

[0025] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable electrostatic spray nozzle structure, characterized in that, The device includes a guide cover (2), several detachable electrodes (4), and a nozzle connection structure (3). The guide cover (2) is located in front of the nozzle connection structure (3). The detachable electrodes (4) are located at the nozzle opening (6). The nozzle connection structure (3) has several nozzles (11) near the guide cover (2). An adjustable air duct is provided in the center of the nozzle connection structure. The nozzles are symmetrically arranged around the air duct, and several electrodes are arranged around the nozzles. The detachable electrodes are screwed to the opening screw holes provided on the nozzle opening. Multiple opening screw holes are arranged around the nozzle opening. The performance and effect are optimized by changing the number and position of the detachable electrodes. The nozzle opening is located in front of the guide cover.

2. The adjustable electrostatic spray nozzle structure according to claim 1, characterized in that: The detachable electrode (4) has a conical top and a stud at the bottom.

3. The electrostatic spray adjustable nozzle structure according to claim 1, characterized in that: The inner side of the guide cover (2) is cylindrical and located outside the nozzle connection structure (3), with an opening in the shape of a trumpet. The guide cover (2) is telescopic, and the nozzle connection structure (3) is provided with several slide rails (7). The guide cover (2) can slide on the slide rails (7).

4. The adjustable electrostatic spray nozzle structure according to claim 2, characterized in that: Several open screw holes (5) form several regular polygons.

5. The electrostatic spray adjustable nozzle structure according to claim 3, characterized in that: The guide cover (2) is provided with a locking nut (9) on the inside, and the slide rail (7) is provided with a number of fixing screw holes (8). The fixing screw holes are adapted to the locking nut (9); multiple fixing screw holes are used as fixed positions to set multiple gears.

6. The adjustable electrostatic spray nozzle structure according to claim 1, characterized in that: The spray gun contains a battery and a water tank.

7. The electrostatic spray adjustable nozzle structure according to claim 6, characterized in that: The nozzle (11) is surrounded by several detachable conical electrodes (12). The height of the conical electrodes (12) can be finely adjusted. The top of the electrodes is higher than the top of the nozzle (11), and the bottom is provided with a stud, which is screwed to the bottom screw hole (13) provided on the front end face of the nozzle connection structure (3).

8. The electrostatic spray adjustable nozzle structure according to claim 1 or 3, characterized in that: The outer part of the guide cover (2) and the nozzle connection structure (3) are both insulating layers.

9. An adjustable electrostatic spray nozzle structure according to claim 1 or 4, characterized in that: The nozzle opening (6) is rotatable, with a rotation angle of -90° to 90°.

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