Handheld P-RTV spraying device

Abstract

The invention discloses a handheld P-RTV spraying device which is a portable non-power-cut spraying tool specially designed for anti-pollution flashover treatment of an insulator of power equipment, and the device realizes non-power-cut operation, improves the spraying efficiency, guarantees the power supply reliability and reduces the safety risk by integrating an advanced spraying technology and the portable design. According to the scheme, the spraying device comprises a spraying machine body, an air channel is formed in the spraying machine body, a fan is arranged at the head end of the air channel and connected to the output end of a motor, an atomization spraying rod is arranged at the tail end of the air channel, a liquid storage bottle is arranged at the bottom end of the air channel in a communicating mode, and a first coating guide pipe and a second coating guide pipe are arranged in the liquid storage bottle; the first coating guide pipe is communicated with the air duct, a one-way valve is arranged on the second coating guide pipe, and the atomizing spray rod is connected with a nozzle; a handle is arranged at the bottom of the spraying machine body, a switch is arranged on the handle, a rechargeable battery is arranged at the bottom of the handle, and the atomizing spraying rod is made of glass fiber reinforced plastics.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and particularly to a handheld P-RTV spraying device. Background Art

[0002] Flashover due to pollution refers to the flashover phenomenon that occurs on the surface of the insulators of power equipment due to accumulated pollution under humid conditions. In areas with severe flashover due to pollution, the insulators of power equipment are extremely vulnerable to the threat of flashover, which not only reduces the insulation performance of the equipment, but may also cause equipment failures and even large-scale power outages, posing a serious threat to the safe and stable operation of the power system. In order to improve the anti-pollution ability of the insulators of power equipment in areas with severe flashover due to pollution, the operation and maintenance units usually spray RTV on the insulators.

[0003] At present, when the operation and maintenance units spray PRTV, they mainly adopt the method of interval power outage maintenance, that is, wearing safety belts and climbing onto the steel frames for spraying. This method has many limitations:

[0004] 1. High safety risk: The maintenance personnel need to work at height wearing safety belts, with a relatively high safety risk.

[0005] 2. Low work efficiency: Power outage maintenance requires arranging a dedicated time period, and the operation process is cumbersome, resulting in low work efficiency.

[0006] 3. Affecting power supply reliability: Power outage maintenance will affect the normal operation of power equipment and reduce power supply reliability.

[0007] With the continuous development of the power system, the requirements for the safety and reliability of power equipment are getting higher and higher. However, there is no such tool for non-stop spraying on the market at present, which has become an obvious technical gap. Developing a handheld P-RTV spraying device that can operate without power outage can not only meet the market demand, but also fill the technical gap and improve the anti-pollution ability of the insulators of power equipment. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to disclose a handheld P-RTV spraying device in view of the deficiencies in the above-mentioned prior art. It is a portable, non-stop spraying tool designed specifically for the anti-flashover treatment of the insulators of power equipment. Through the integration of advanced spraying technology and portable design, the device realizes non-stop operation, improves spraying efficiency, ensures power supply reliability, and reduces safety risks.

[0009] The technical solution adopted by the present invention to solve its technical problems is:

[0010] Handheld P-RTV spraying device, including a spraying body, a duct is arranged inside the spraying body, a fan is provided at the head end of the duct, the fan is connected to the output end of a motor, an atomizing spray bar is provided at the tail end of the duct, a liquid storage bottle is communicated and provided at the bottom end of the duct, a first paint conduit and a second paint conduit are arranged inside the liquid storage bottle, the first paint conduit is kept in a communicating state with the duct, a one-way valve is provided on the second paint conduit, and the atomizing spray bar is connected with a nozzle;

[0011] A handle is provided at the bottom of the spraying body, a switch is provided on the handle, a rechargeable battery is provided at the bottom of the handle, and the rechargeable battery is used for supplying power to the motor;

[0012] The atomizing spray bar is made of fiberglass material.

[0013] As a preferred embodiment of the present invention,

[0014] The positive and negative poles of the switch are respectively connected to the positive and negative poles of the motor.

[0015] As a preferred embodiment of the present invention,

[0016] The nozzle includes a conical plate and a baffle plate, the inlet end face of the conical plate is hermetically connected to the baffle plate, and a plurality of small holes are opened on the baffle plate;

[0017] The baffle plate is arranged as a replaceable structure, and a baffle plate with different pore diameters or arranged small holes can be replaced.

[0018] As a preferred embodiment of the present invention,

[0019] The rechargeable battery is a plug-in lithium battery, and a battery compartment matching the plug-in lithium battery is arranged at the bottom of the handle.

[0020] As a preferred embodiment of the present invention,

[0021] A camera assembly is further provided on the outer side of the spraying body, the camera assembly includes a camera, a controller and a guiding tube, the controller is installed on one side of the spraying body, the controller is connected to an image transmission line through a data interface, the other end of the image transmission line is connected to the camera, and the image transmission line is sleeved with a guiding tube on the outside.

[0022] As a preferred embodiment of the present invention,

[0023] The controller includes a display screen, as well as a built-in display driver module, an image processing module, a signal transmission module, an interface module, and a power module. The signal of the image transmission line is input into the signal transmission module through the interface module. The output end of the signal transmission module is connected to the image processing module. The image processing module is connected to the display driver module. The output end of the display driver module is connected to the display screen. The power module supplies power to the camera assembly.

[0024] As a preferred embodiment of the present invention,

[0025] A circle of LED lights is provided along the circumference of the camera, and a waterproof and anti-fouling coating is applied on the lens of the camera.

[0026] As a preferred embodiment of the present invention,

[0027] The guide tube is arranged in a structure woven with tungsten metal wires.

[0028] As a preferred embodiment of the present invention,

[0029] A paint filter is provided inside the liquid storage bottle.

[0030] The present invention has the following advantages compared with the prior art:

[0031] The handheld P-RTV spraying device of the present invention is a portable, non-stop power spraying tool designed specifically for the anti-fouling and flashover treatment of insulators of power equipment. Through the integration of advanced spraying technology, control system and portable design, the device realizes efficient, stable and safe spraying operations, and greatly improves the anti-fouling ability of insulators of power equipment;

[0032] The spraying body is the main structure of the entire spraying device. The spraying body is made of strong and durable materials to ensure stable operation in complex outdoor environments. There is an air duct inside the body for the transportation and atomization of the paint. A fan is provided at the head end of the air duct. The fan is connected to the output end of the motor. The motor drives the fan to rotate, generating air flow to provide power for the atomization of the paint. An atomizing spray bar is provided at the tail end of the air duct for spraying the atomized paint. The liquid storage bottle is located at the bottom of the spraying body and is connected to the bottom end of the air duct. There are a first paint conduit and a second paint conduit in the liquid storage bottle. The first paint conduit remains connected to the air duct to ensure continuous paint transportation. A one-way valve is provided on the second paint conduit for supplementing paint or cleaning the device when needed. The atomizing spray bar is made of fiberglass. Fiberglass is an electrically insulating material that does not conduct electricity and can effectively resist the passage of current. The length of the atomizing spray bar in the present invention is set according to requirements to meet the non-stop power spraying operation. Its nozzle is connected to the end of the atomizing spray bar for evenly spraying the atomized paint to form the required coating. The grip is located at the bottom of the spraying body for easy operation by the operator. The switch is set on the grip for the operator to conveniently control the start and end of the spraying operation. The rechargeable battery is set at the bottom of the grip to provide power supply for the motor;

[0033] 1. Improve spraying efficiency:

[0034] The non-stop power handheld spraying device can achieve fast and efficient spraying operations. This device is designed to be compact and lightweight, allowing the operator to easily hold it for spraying, greatly improving work efficiency. Compared with the traditional power outage maintenance spraying method, this device reduces labor costs and time costs;

[0035] 2. Ensure power supply reliability:

[0036] The non-stop power operation is a major highlight of this device. Through the handheld design, the operator can perform spraying operations without power outage of the power equipment, avoiding the impact on the normal operation of the power equipment caused by power outage maintenance, which greatly improves the reliability of power supply and ensures the stable operation of the power system;

[0037] 3. Reduce safety risks:

[0038] The handheld design enables maintenance personnel not to work at heights. The operator can perform spraying operations on the ground or at low heights, greatly reducing safety risks;

[0039] In summary, the handheld P-RTV spraying device of the present invention is an efficient, portable, safe, and reliable tool for anti-fouling and flashover treatment of insulators of power equipment. By integrating advanced spraying technology and a portable design, the device enables live working, improves spraying efficiency, ensures power supply reliability, and reduces safety risks. The device has broad application prospects and market demand, and will provide more powerful guarantees for the safe and stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 FIG. is a schematic three-dimensional structure diagram of a specific embodiment of the present invention;

[0041] Figure 2 is Figure 1 schematic internal structure diagram;

[0042] Figure 3 is Figure 1 schematic three-dimensional structure diagram of another angle in ;

[0043] Figure 4 FIG. is a schematic three-dimensional structure diagram of another specific embodiment of the present invention.

[0044] Description of the reference numerals:

[0045] 1 - spraying body, 2 - liquid storage bottle, 3 - air duct, 4 - nozzle, 5 - power supply, 6 - switch, 7 - grip, 8 - motor, 9 - atomizing spray rod, 10 - camera; 11 - LED lamp, 12 - data interface; 13 - controller, 14 - guide tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] As Figures 1 to 4 shown, it shows the specific embodiments of the present invention;

[0048] As Figures 1 to 4 shown, the handheld P-RTV spraying device disclosed in the present invention includes a spraying body 1, an air duct 3 is arranged inside the spraying body 1, a fan is provided at the head end of the air duct 3, the fan is connected to the output end of a motor 8, an atomizing spray rod 9 is provided at the tail end of the air duct 3, a liquid storage bottle 2 is communicated and arranged at the bottom end of the air duct 3, a first paint conduit and a second paint conduit are arranged inside the liquid storage bottle 2, the first paint conduit is kept in a communicating state with the air duct 3, a one-way valve is arranged on the second paint conduit, and the atomizing spray rod 9 is connected with a nozzle 4;

[0049] The bottom of the spraying body 1 is provided with a handle 7, a switch 6 is arranged on the handle 7, and a rechargeable battery is arranged at the bottom of the handle 7, and the rechargeable battery is used for supplying power to the motor 8;

[0050] The atomizing spray rod 9 is made of fiberglass material.

[0051] Preferably, as Figures 1 to 3 shown,

[0052] The positive and negative poles of the switch 6 are respectively connected to the positive and negative poles of the motor 8.

[0053] In the hand-held P-RTV spraying device, the switch 6 directly controls the start and stop of the motor 8, thus determining the start and end of the spraying operation.

[0054] The positive and negative poles of the switch 6 are respectively connected to the positive and negative poles of the motor 8, forming a complete electrical circuit.

[0055] When the switch 6 is closed, the current flows from the power source (i.e., the rechargeable battery), through the switch, into the motor, driving the motor to rotate. When the switch 6 is opened, the electrical circuit is cut off and the motor stops rotating.

[0056] The connection between the switch and the motor adopts a reliable electrical wiring method to ensure that the current can flow smoothly, avoiding problems such as poor contact or short circuit. Waterproof and anti-corrosion sealing materials are usually used at the connection.

[0057] The switch 6 is designed on the handle 7, which is convenient for the operator to easily touch when holding the device. The operator only needs to press the switch to start the motor and start the spraying operation. When the switch is released, the motor immediately stops and the spraying operation ends.

[0058] This switch control method is very simple and intuitive, and can be mastered without complex operation steps or training. The operation is simple. The operator can start or stop the spraying operation at any time according to actual needs, improving the flexibility and efficiency of the work.

[0059] The surface of the switch usually adopts an anti-slip design, such as the design of anti-slip patterns, etc., to increase the stability and safety during operation.

[0060] Preferably, as Figures 1 to 4 shown,

[0061] The nozzle 4 includes a conical plate and a baffle. The inlet end face of the conical plate is sealingly connected to the baffle, and a plurality of small holes are opened on the baffle;

[0062] The baffle is set as a replaceable structure, and the baffle with different pore diameters or arranged small holes can be replaced.

[0063] In a handheld P-RTV spraying device, the nozzle 4 directly determines the atomization effect and spraying quality of the coating. The nozzle in this device adopts a unique conical plate and baffle design, and endows the baffle with a replaceable structural feature to adapt to different spraying requirements.

[0064] As the main part of the nozzle, the conical plate's shape design helps the uniform distribution and preliminary atomization of the coating. The inlet end face of the conical plate is sealed and connected to the baffle to ensure that the coating does not leak when passing through. The baffle is set at the outlet end of the conical plate, and several small holes are opened on it. The setting of these small holes is the key to the atomization of the coating. When the coating passes through the small holes, it is further atomized into tiny particles under the action of high-speed air flow.

[0065] The baffle is set as a replaceable structure to adapt to different spraying requirements. By replacing the baffle with different hole diameters or arranged small holes, the atomization degree and spraying effect of the coating can be adjusted.

[0066] A detachable connection method is adopted between the baffle and the conical plate, such as threaded connection, snap connection, etc. Operators can easily replace baffles of different specifications according to actual needs.

[0067] The influence of the baffle hole diameter and arrangement The size of the small hole diameter directly affects the atomization degree of the coating:

[0068] The smaller the hole diameter, the finer the particles into which the coating is atomized, and the more uniform and delicate the spraying effect. The larger the hole diameter, the relatively lower the atomization degree of the coating, and the spraying effect may be slightly rough.

[0069] The arrangement pattern of the small holes will also affect the atomization effect and spraying range of the coating.

[0070] The uniformly arranged small holes can ensure the uniform distribution of the coating during spraying, avoiding the situation of local over-thickness or over-thinness.

[0071] Specially arranged small holes (such as staggered arrangement, annular arrangement, etc.) can achieve specific spraying effects, such as fan-shaped spraying, annular spraying, etc.

[0072] According to the needs of the use scenario and application, by replacing baffles of different specifications, the nozzle can adapt to different types of P-RTV coatings. For coatings with higher viscosity or larger particles, baffles with larger hole diameters can be selected; for coatings that require fine spraying, baffles with smaller hole diameters can be selected.

[0073] The replaceable baffle structure enables operators to quickly adjust the nozzle according to the spraying object and requirements, improving the spraying efficiency.

[0074] There is no need to replace the entire nozzle, reducing the use cost and maintenance difficulty.

[0075] The nozzle of the handheld P-RTV spraying device adopts the design of a conical plate and a baffle, and endows the baffle with a replaceable structural feature. This design not only improves the adaptability and flexibility of the nozzle, but also reduces the use cost and maintenance difficulty. By replacing the baffle with different aperture diameters or arranged small holes, the operator can easily adjust the atomization degree and spraying effect of the coating to meet different spraying requirements.

[0076] Preferably, as Figures 1 to 4 shown,

[0077] The rechargeable battery is a plug-in lithium battery, and a battery compartment matching the plug-in lithium battery is arranged at the bottom of the grip 7.

[0078] In the handheld P-RTV spraying device, the rechargeable battery serves as a power source to provide electrical energy for key components such as the motor. In order to facilitate users to replace the battery and improve the portability and use efficiency of the device, this device adopts the design of a plug-in lithium battery, and a battery compartment matching the plug-in lithium battery is arranged at the bottom of the grip.

[0079] It can provide stable power support for the handheld P-RTV spraying device to ensure that the device can operate stably for a long time in complex outdoor environments.

[0080] The plug-in design enables the lithium battery to be easily taken out and inserted from the battery compartment without disassembling the entire device or performing complex wiring operations. This design not only improves the efficiency of replacing the battery, but also reduces the risk of equipment damage caused by improper battery replacement.

[0081] Moreover, spare batteries can be carried. When the battery runs out of power, the battery can be quickly replaced, and then charged after the operation is completed, improving the work efficiency.

[0082] The design of the battery compartment is completely matched with the plug-in lithium battery to ensure that the battery can be firmly installed in the battery compartment without loosening or poor contact. The battery compartment is arranged at the bottom of the grip, facilitating users to replace the battery at any time. The battery compartment is usually provided with fixing devices such as locks or buckles to ensure that the battery will not accidentally fall off during use. The design of the battery compartment takes into account the safety performance of the battery, such as setting overcharge, over-discharge, short-circuit and other protection functions to prevent the battery from being damaged or causing safety accidents due to improper use.

[0083] The battery compartment is also provided with heat dissipation structures such as ventilation holes or heat sinks inside to ensure that the battery can maintain good heat dissipation performance during the charging and discharging process.

[0084] In summary, the following advantages are generated by this design:

[0085] 1. Improve the use efficiency:

[0086] The design of the pluggable lithium battery and the battery compartment enables users to quickly replace the battery and continue using the device without waiting for the battery to fully charge, improving the usage efficiency.

[0087] 2. Enhanced portability:

[0088] The pluggable lithium battery is small in size and light in weight, facilitating users to carry and replace. The design of the battery compartment also makes the entire device more compact and portable, suitable for outdoor operations.

[0089] 3. Reduced maintenance costs:

[0090] The design of the pluggable lithium battery and the battery compartment allows users to easily replace the battery without the involvement of professional maintenance personnel, reducing the maintenance costs.

[0091] Meanwhile, the long cycle life and stable performance of the lithium battery also reduce the frequency of replacement due to battery damage.

[0092] 4. Improved safety:

[0093] The design of the battery compartment takes into account the safety performance of the battery, such as setting overcharge, over-discharge, short-circuit and other protection functions, effectively improving the safety of the device. The design of the pluggable lithium battery also reduces the safety hazards caused by improper battery connection.

[0094] The handheld P-RTV spraying device adopts the design of the pluggable lithium battery and the battery compartment, which not only improves the usage efficiency and portability of the device, but also reduces the maintenance costs and safety hazards. This design fully considers the needs and usage scenarios of users and provides a more convenient, safe and efficient spraying solution for users.

[0095] Preferably, as Figure 4 shown,

[0096] A camera assembly is further provided on the outer side of the spraying body 1. The camera assembly includes a camera 10, a controller 13 and a guiding tube 14. The controller 13 is installed on one side of the spraying body 1. The controller 13 is connected to an image transmission line through a data interface 12. The other end of the image transmission line is connected to the camera 10. The guiding tube 14 is sleeved outside the image transmission line.

[0097] In the design of the handheld P-RTV spraying device, in order to ensure efficient and safe spraying work in the scenario without power interruption, and at the same time solve the problem that the operator cannot observe the spraying situation at a long distance due to the too long atomizing spray rod, the device is specially equipped with a camera assembly, and the atomizing spray rod is designed to be telescopic to adapt to spraying in multiple scenarios.

[0098] The camera assembly is composed of a camera 10, a controller 13 and a guiding tube 14.

[0099] The camera 10 is responsible for capturing the image information of the spraying site in real time, ensuring that the operator can clearly and accurately understand the spraying situation.

[0100] The controller 13 is installed on one side of the spraying body 1 and is connected to the image transmission line through the data interface 12 to achieve data communication and control with the camera 10. The image transmission line is responsible for transmitting the image information captured by the camera to the controller 13 and then further transmitting it to the display device for the operator to observe.

[0101] The guiding tube 14 is sleeved outside the image transmission line, playing a role of protection and guiding, preventing the image transmission line from being damaged or entangled during use, and the guiding tube can be adjusted in angle according to the required observation range;

[0102] This design solves the problem of long-distance observation:

[0103] When spraying work is carried out in a live scenario, due to the limitations of the safety distance and working space, the operator may not be able to directly observe the spraying situation. The setting of the camera component enables the operator to remotely observe the spraying situation through the display device, ensuring the accuracy and safety of the spraying work.

[0104] The length of the atomizing spray bar directly affects the spraying range and effect. To meet the spraying requirements in different scenarios, the atomizing spray bar is designed to be telescopic and can be flexibly adjusted according to the on-site situation.

[0105] The atomizing spray bar is composed of multiple sections, and each section is connected by a telescopic mechanism. The operator can adjust the length of the atomizing spray bar through simple operations according to the size of the spraying object and the working space. The telescopic design not only improves the flexibility of the spraying device but also facilitates the operator's carrying and transportation.

[0106] Overall, the following advantages are generated:

[0107] 1. Improve spraying efficiency:

[0108] The real-time observation function of the camera component enables the operator to timely adjust the spraying parameters and the length of the atomizing spray bar, ensuring the accuracy and consistency of the spraying effect. This not only improves the spraying efficiency but also reduces rework and waste caused by problems such as uneven spraying or missed spraying.

[0109] 2. Enhance safety:

[0110] When spraying work is carried out in a live scenario, the operator needs to maintain a certain safety distance.

[0111] The setting of the camera component enables the operator to observe the spraying situation without directly contacting the spraying site, reducing the safety risk.

[0112] The camera component and the retractable atomizing spray rod of the handheld P-RTV spraying device fully consider the spraying requirements and safety factors in the live working scenario. The real-time observation function of the camera component enables the operator to observe the spraying situation from a distance, ensuring the accuracy and safety of the spraying work; the retractable atomizing spray rod improves the flexibility and adaptability of the spraying device, meeting the spraying requirements in different scenarios. The synergistic effect of these two designs enables the handheld P-RTV spraying device to complete the spraying work more efficiently and safely in the live working scenario.

[0113] Preferably, as Figure 4 shown,

[0114] The controller 13 includes a display screen, as well as a built-in display screen driving module, an image processing module, a signal transmission module, an interface module, and a power supply module. The signal of the image transmission line is input into the signal transmission module through the interface module. The output end of the signal transmission module is connected to the image processing module. The image processing module is connected to the display screen driving module. The output end of the display screen driving module is connected to the display screen. The power supply module supplies power to the camera component.

[0115] In the camera component of the handheld P-RTV spraying device, the controller 13, as the core component, is responsible for processing the image information captured by the camera and displaying it on the display screen for the operator to observe the spraying situation in real time.

[0116] The controller 13 mainly consists of a display screen, a display screen driving module, an image processing module, a signal transmission module, an interface module, and a power supply module.

[0117] The display screen is the output device of the controller 13, responsible for displaying the processed image information. It usually adopts a high-resolution liquid crystal display screen to ensure clear and delicate images.

[0118] The display screen driving module is responsible for driving the display screen to work, converting the signal output by the image processing module into a format that the display screen can recognize. It closely cooperates with the display screen to ensure that the image can be accurately and stably displayed on the screen.

[0119] The image processing module is the core processing unit of the controller 13, responsible for processing the original image captured by the camera. It can perform operations such as image enhancement, denoising, and scaling to improve the quality and clarity of the image.

[0120] The signal transmission module is responsible for transmitting the signals input by the interface module to the image processing module. It ensures that the signals are not interfered with during transmission, maintaining the stability and accuracy of the signals.

[0121] The interface module is the connection interface between the controller 13 and the camera 10. It is connected to the image transmission line through the data interface 12 and receives the image signals captured by the camera.

[0122] The power supply module is responsible for supplying power to the controller 13 and its various components. It ensures a stable power supply for the controller 13 during operation, guaranteeing the normal operation of each component.

[0123] The working principle of the controller 13:

[0124] Signal input:

[0125] The image signals captured by the camera 10 are transmitted to the interface module of the controller 13 through the image transmission line.

[0126] After receiving the signals, the interface module transmits them to the signal transmission module.

[0127] Signal processing:

[0128] The signal transmission module transmits the received signals to the image processing module.

[0129] The image processing module processes the signals, such as enhancement, denoising, scaling, etc., to improve the image quality.

[0130] Signal output:

[0131] The processed signals are transmitted to the display driver module.

[0132] The display driver module converts the signals into a format that the display can recognize and drives the display to show the image.

[0133] Power supply:

[0134] The power supply module provides a stable power supply for the controller 13 and its various components.

[0135] It ensures that the controller 13 will not malfunction or behave abnormally due to power problems during operation.

[0136] The controller in this solution has the following advantages:

[0137] Real-time observation: The display screen of the controller 13 can display the processed image information in real time, enabling the operator to understand the spraying situation at any time. This improves the accuracy and efficiency of the spraying work and reduces errors and waste caused by untimely observation.

[0138] High image quality:

[0139] The image processing module processes the original image, improving the quality and clarity of the image. This enables the operator to observe the spraying situation more clearly and make more accurate judgments and decisions.

[0140] Good stability:

[0141] Each component of the controller 13 cooperates closely to ensure the stable transmission and processing of signals. The power supply module provides a stable power supply for the controller 13, ensuring its long-term and stable operation.

[0142] In summary, as the core component of the camera module, the controller 13 of the handheld P-RTV spraying device is responsible for processing the image information captured by the camera and displaying it on the display screen. It receives signals through the interface module, transmits signals through the signal transmission module, processes signals through the image processing module, drives the display screen to display images through the display screen driving module, and powers each component through the power supply module. The advantage of the controller 13 is its ability to observe the spraying situation in real time, improve the image quality, and have good stability. This enables the handheld P-RTV spraying device to complete the spraying work more efficiently and accurately in the non-power-off scenario.

[0143] Preferably, as Figure 4 shown,

[0144] A circle of LED lights is provided circumferentially around the camera, and a waterproof and anti-fouling coating is applied to the lens of the camera.

[0145] Setting a circle of LED lights around the camera can significantly improve the brightness and clarity of the captured image. Especially in the case of insufficient light or relatively dim ambient light, the LED lights can provide additional illumination, making the captured object brighter and more detailed, and improving the overall observation effect.

[0146] The lens is the core component of the camera, and its cleanliness directly affects the quality of the captured image. By using the waterproof and anti-fouling coating (AF coating) technology, an extremely thin nano-coating with super-hydrophobic and super-oleophobic properties can be formed on the lens surface. This coating can effectively prevent pollutants such as water droplets, oil stains, and dust from adhering to the lens surface, thus maintaining the cleanliness and transparency of the lens. This is undoubtedly able to significantly extend the service life of the lens and maintain the high quality of the image for a camera that is exposed to a complex environment for a long time.

[0147] In addition to the waterproof and anti-fouling functions, the AF coating also has high hardness and wear resistance. This means that the lens surface can better resist scratches and abrasions during daily use, reducing the degradation of image quality caused by physical damage. In addition, the AF coating can also reduce the adhesion of pollutants such as fingerprints on the lens surface, further enhancing the durability and reliability of the camera.

[0148] Since the AF coating can effectively prevent contaminants from adhering to the lens surface, the cleaning frequency of the camera can be greatly reduced. This not only saves cleaning time and labor costs but also reduces the risk of lens wear and damage caused by frequent cleaning. In the long run, this helps to reduce the overall maintenance cost of the camera.

[0149] In the design of the camera, setting a ring of LED lights and applying a water and stain resistant coating (AF coating) on the lens are two complementary innovative points. The LED lights provide additional illumination and improve the observation effect; while the AF coating keeps the lens clean and transparent, ensuring high-quality images. This design is not only applicable to complex environments such as P-RTV spraying but also to various occasions that require high-quality image recording. By combining these two technologies, a durable and reliable camera product can be created to meet users' needs for high-quality image recording.

[0150] Preferably, as Figure 4 shown,

[0151] The guide tube 14 is set as a structure woven from tungsten wires.

[0152] Weaving tungsten wires into a guide tube can make full use of the high strength and flexibility of tungsten wires. The woven structure enables the guide tube to not only withstand large pressures but also have a certain degree of flexibility to adapt to adjustments at different angles. In addition, the woven structure also has good air permeability, which helps to maintain air circulation inside and outside the tube and reduce stress concentration caused by temperature changes.

[0153] During the actual spraying process, the guide tube often needs to be adjusted in angle according to the specific scenario to optimize the image acquisition of its camera components.

[0154] Preferably, as Figures 1 to 3 shown,

[0155] A paint filter is provided inside the liquid storage bottle 2. Before the P-RTV paint in the liquid storage bottle is sucked out under negative pressure during the spraying process, it can pass through the paint filter to filter out impurities, further improving the spraying effect. Details

[0156] Setting a paint filter inside the liquid storage bottle and allowing the paint to pass through the filter before sucking out the P-RTV paint under negative pressure during the spraying process can effectively filter out impurities and further improve the spraying effect.

[0157] The paint filter has the following advantages in this solution:

[0158] 1. Removing impurities:

[0159] During the production, storage, and transportation of coatings, various impurities may be mixed in, such as dust, metal chips, welding slag, etc. If these impurities are not removed, they will directly affect the spraying effect, resulting in defects such as uneven coating surfaces, particles, and bubbles. The coating filter can efficiently remove these impurities, ensuring the purity of the coating and thus improving the spraying quality.

[0160] 2. Protect the spraying equipment:

[0161] Impurities not only affect the spraying effect but also cause damage to the spraying equipment, such as clogging nozzles and wearing pump bodies. The coating filter can reduce the wear of impurities on the spraying equipment and extend the service life of the equipment.

[0162] 3. Improve the spraying efficiency:

[0163] Pure coatings can pass through the spraying equipment more smoothly, reducing downtime caused by impurity blockages. Thus, it improves the spraying efficiency and reduces production costs.

[0164] During the spraying process, an electric motor drives a fan to generate negative pressure to suck out the P-RTV coating in the liquid storage bottle. This method can quickly and evenly transport the coating, ensuring the continuity and stability of spraying.

[0165] Set the coating filter at the outlet of the liquid storage bottle or connect it between the negative pressure suction pipeline and the spraying equipment. In this way, before the coating is sucked out and transported to the spraying equipment, it will first pass through the filter to complete the process of removing impurities.

[0166] The filtered coating is purer, which can reduce defects such as particles and bubbles that occur during spraying. Thus, it improves the flatness and smoothness of the spraying surface, making the coating more uniform and beautiful, and further improving the spraying effect; especially for materials like P-RTV coatings that have high requirements for spraying quality, using a coating filter can significantly improve the spraying effect.

[0167] According to the properties of the coating (such as viscosity, particle size, etc.) and the requirements of the spraying equipment, select the appropriate filter type and accuracy. Common coating filters include bag filters, plate filters, self-cleaning filters, etc. The coating filter will gradually become clogged during use, affecting the filtering effect and coating flow rate. Therefore, it is necessary to regularly replace or clean the filter to ensure its normal operation and filtering effect.

[0168] In summary, setting a paint filter in the liquid storage bottle and allowing the paint to pass through the filter before sucking out the P-RTV paint using negative pressure during the spraying process is an efficient and practical method. It can remove impurities in the paint, improve the spraying quality, protect the spraying equipment, and increase the spraying efficiency. In practical applications, the appropriate type and precision of the filter should be selected, and the filter should be replaced or cleaned regularly to ensure its normal operation and filtering effect.

[0169] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention. These changes involve related technologies well-known to those skilled in the art, and all of them fall within the protection scope of this invention patent.

[0170] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A handheld P-RTV spraying device, comprising a spraying body (1), characterized in that: An air duct (3) is arranged in the spraying machine body (1), a fan is arranged at the head end of the air duct (3), the fan is connected to the output end of the motor (8), an atomizing spray rod (9) is arranged at the tail end of the air duct (3), a liquid storage bottle (2) is arranged at the bottom end of the air duct (3), a first paint conduit and a second paint conduit are arranged in the liquid storage bottle (2), the first paint conduit is connected to the air duct (3), a one-way valve is arranged on the second paint conduit, and the atomizing spray rod (9) is connected to a nozzle (4); A handle (7) is provided at the bottom of the spraying machine body (1), a switch (6) is provided on the handle (7), and a rechargeable battery is provided at the bottom of the handle (7), and the rechargeable battery is used to power the motor (8); The atomizing spray rod (9) is made of glass fiber reinforced plastic.

2. The handheld P-RTV spraying device according to claim 1, characterized in that: The positive and negative poles of the switch (6) are respectively connected to the positive and negative poles of the motor (8).

3. The handheld P-RTV spraying device according to claim 2, characterized in that: The nozzle (4) comprises a conical plate and a baffle, the inlet end face of the conical plate is sealingly connected to the baffle, and a plurality of small holes are provided on the baffle; The baffle is configured as a replaceable structure, and baffles with different apertures or arrangements of small holes can be replaced.

4. The handheld P-RTV spraying device according to claim 2, characterized in that: The rechargeable battery is a plug-in lithium battery, and a battery compartment matching the plug-in lithium battery is provided at the bottom of the handle (7).

5. The handheld P-RTV spraying device according to any one of claims 1 to 4, characterized in that: A camera assembly is also provided on the outside of the spraying machine body (1), the camera assembly comprising a camera (10), a controller (13) and a guide tube (14), the controller (13) being mounted on one side of the spraying machine body (1), the controller (13) being connected to an image transmission line via a data interface (12), the other end of the image transmission line being connected to the camera (10), and a guide tube (14) being sleeved on the outside of the image transmission line.

6. The handheld P-RTV spraying device according to claim 5, characterized in that: The controller (13) comprises a display screen, and a built-in display screen driving module, an image processing module, a signal transmission module, an interface module, and a power module. The signal of the image transmission line is input into the signal transmission module via the interface module. The output end of the signal transmission module is connected to the image processing module. The image processing module is connected to the display screen driving module. The output end of the display screen driving module is connected to the display screen. The power module supplies power to the camera assembly.

7. The handheld P-RTV spraying device according to claim 6, characterized in that: The camera (10) is provided with a circle of LED lights (11) along the circumference, and a waterproof and anti-fouling coating is applied on the lens of the camera (10).

8. The handheld P-RTV spraying device according to claim 7, characterized in that: The guide tube (14) is configured as a metal tungsten wire braided structure.

9. The handheld P-RTV spraying device according to claim 1 or 8, characterized in that: A paint filter is provided in the liquid storage bottle (2).

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