Spraying device for repairing insulation layers of electrical equipment

Abstract

A spraying device for repairing the insulation layer of power equipment includes a main control module, a heating module, a handheld lever, an adjustment mechanism, and a spraying mechanism. The spraying mechanism uses air pressure to propel insulating varnish from a storage tank through a nozzle. The angle adjustment component of the adjustment mechanism adjusts the angle between a protective cover and the handheld lever. The opening and closing adjustment component adjusts the opening and closing of the protective cover. The main control module is located at the lower end of the handheld lever. The heating module is sleeved on the outside of the storage tank and electrically connected to the main control module, used to heat the insulating varnish in the storage tank under the control of the main control module. The main control module is electrically connected to the drive components of the pneumatic component and the opening and closing adjustment component, used to control the operation of these drive components. This solution can solve the problem of poor spraying effect caused by the rapid increase in viscosity of the insulating varnish at low temperatures.

Description

Technical Field

[0001] This invention relates to the fields of insulating varnish spraying and power equipment technology, and particularly to a spraying device for repairing the insulation layer of power equipment. Background Technology

[0002] Spray coating equipment is a product of the increasingly widespread automation in industrial technology. As automation levels rise, spray coating production lines are being applied more extensively, penetrating various sectors of the national economy. For example, in the power technology field, insulating paint needs to be sprayed onto power equipment such as power cables, clamps, connectors, and insulating components.

[0003] Currently, electrical equipment such as cables and clamps are often exposed, making them susceptible to damage from external environmental factors. Accidental attachment of objects like kites, plastic, and dust to these devices can easily cause short circuits, leading to unexpected power outages. Therefore, protecting electrical equipment with insulating varnish is being considered. Furthermore, even for electrical equipment with protective insulating varnish, factors such as temperature changes, strong storms, rain, fog, icing loads, and natural and industrial debris can damage the insulation layer, thereby weakening or reducing its insulation strength and potentially causing electrical accidents. Therefore, it is necessary to repair electrical equipment by spraying insulating varnish.

[0004] However, during the spraying of insulating varnish, the low temperature often causes the varnish to thicken and harden, resulting in poor spraying results or even preventing the varnish from being sprayed smoothly. This is especially true in northern regions where winter temperatures are even lower, causing the varnish in the storage tank to thicken even faster. This often results in the varnish becoming too thick to spray within a very short time, or even before spraying has begun. Summary of the Invention

[0005] In view of this, and to address the above shortcomings, it is necessary to propose a spraying device for repairing the insulation layer of power equipment, in order to solve the problem of poor spraying effect caused by the excessively rapid increase in viscosity of insulating varnish at low temperatures.

[0006] The present invention provides a spraying device for repairing the insulation layer of power equipment. The spraying device includes a main control module, a heating module, a hand lever, an adjustment mechanism, and a spraying mechanism. The spraying mechanism includes a pneumatic component, a paint reservoir, a nozzle, and a protective cover. The pneumatic component is fixed to the lower end of the hand handle, the paint reservoir is fixed to the upper end of the hand handle, the protective cover is fixed to the top of the hand handle via the adjustment mechanism, and the nozzle is fixedly mounted on the protective cover with the nozzle facing the inside of the protective cover. The air outlet of the pneumatic component is connected to the upper end of the paint reservoir via an air pipe, and the lower end of the paint reservoir is connected to the paint inlet of the nozzle via a paint pipe, so as to use air pressure to push the insulating paint in the paint reservoir from the nozzle. The adjustment mechanism includes an angle adjustment component and an opening / closing adjustment component. The lower end of the angle adjustment component is fixedly connected to the top end of the handheld lever, and the upper end is movably connected to the opening / closing adjustment component to adjust the angle between the protective cover and the handheld lever. The protective cover includes a movable shell and a non-movable shell. The fixed end of the driving component of the opening / closing adjustment component is fixedly connected to the non-movable shell, and the driving end is movably connected to the movable shell to adjust the opening and closing of the protective cover. The main control module is located at the lower end of the handheld lever. The heating module is sleeved on the outside of the paint storage tank and is electrically connected to the main control module. It is used to heat the insulating paint in the paint storage tank under the control of the main control module. The main control module is electrically connected to the drive components of the pneumatic component and the opening and closing adjustment component to control the operation of the drive components of the pneumatic component and the opening and closing adjustment component.

[0007] Preferably, the opening and closing adjustment assembly includes an L-shaped connector, a driving component, and a first fixing component. The upper end of the angle adjustment assembly is fixedly connected to the intersection of the longitudinal plate and the transverse plate of the L-shaped connector. The upper end of the longitudinal plate of the L-shaped connector is provided with a protrusion. The L-shaped connector is movably connected to the bottom of the movable housing through the protrusion. The side of the longitudinal plate of the L-shaped connector is fixedly connected to one end of the first fixing component, and the other end of the first fixing component is fixedly connected to the non-movable housing. The fixed end of the driving component is fixedly connected to the side of the transverse plate of the L-shaped connector away from the longitudinal plate, and the driving end is movably connected to the side of the movable housing, so as to control the opening and closing of the movable housing of the protective cover through the driving component.

[0008] Preferably, the pneumatic assembly includes a first air pump and a second air pump, and the nozzle includes a first nozzle and a second nozzle; the insulating varnish flow chamber and the gas flow chamber inside the first nozzle and the second nozzle are not connected; the first nozzle and the second nozzle each have two symmetrically arranged air outlets, and both are directly facing the path of the insulating varnish spray; the air pipe connected to the air outlet of the first air pump is connected to the upper end of the varnish storage tank and the air inlet of the first nozzle respectively through a three-way component; the air outlet of the second air pump is connected to the air inlet of the second nozzle through an air pipe; the varnish pipe connected to the lower end of the varnish storage tank is connected to the varnish inlet of the first nozzle and the second nozzle respectively through a three-way component.

[0009] Preferably, both the first and second air pumps are equipped with heating components, which are electrically connected to the main control module to heat the gas entering the first and second air pumps under the control of the main control module.

[0010] Preferably, both the air pipe and the paint pipe are provided with an insulation layer on the outside.

[0011] Preferably, the upper and lower sides of the non-movable shell of the protective cover are respectively provided with fixing grooves, and the bottom of the two fixing grooves are both open; the first nozzle and the second nozzle are respectively installed in the two fixing grooves, and the bottom ends of the first nozzle and the second nozzle are fixed to the outside of the non-movable shell through the openings at the bottom of the fixing grooves.

[0012] Preferably, the spraying device further includes a U-shaped limiting member, the bottom edge of which is fixed to the inner side of the movable housing, and two sets of semi-circular slots are symmetrically arranged on the two U-shaped sides for securing cables; the nozzles of the first spray head and the second spray head are both directly facing the middle position of the two U-shaped sides.

[0013] Preferably, the angle adjustment assembly includes a second fixing member, a third fixing member, and a fastener. One end of the second fixing member is fixedly connected to the top of the hand handle, and the other end is provided with a fixing hole. One end of the third fixing member is fixedly connected to the intersection of the longitudinal plate and the transverse plate of the L-shaped connector, and the other end is provided with a fixing hole. The fastener passes through the fixing holes on the second fixing member and the third fixing member, and connects the second fixing member and the third fixing member in an adjustable manner.

[0014] Preferably, the movable housing is provided with an arc-shaped connector and a semi-circular fixing member. The inner sides of both the arc-shaped connector and the semi-circular fixing member can fit against the movable housing. The semi-circular fixing member is fixed to the movable housing with its arc-shaped edge facing downwards. The top end of the arc-shaped edge is fixedly connected to one end of the arc-shaped connector, and the other end of the arc-shaped connector is movably connected to the protrusion. The driving end of the driving component is movably connected to the middle position of the arc-shaped connector.

[0015] Preferably, the bottom end of the handheld lever is provided with a thread for connecting an extension rod to extend the length of the handheld lever.

[0016] As can be seen from the above technical solution, the spraying device for repairing the insulation layer of power equipment provided by the present invention includes a main control module, a heating module, a handheld lever, an adjustment mechanism, and a spraying mechanism. The adjustment mechanism can use air pressure to push the insulating varnish in the varnish tank from the nozzle. The adjustment mechanism can adjust the angle between the protective cover and the handheld lever, as well as adjust the opening and closing of the protective cover, thereby realizing the spraying of insulating varnish onto the power equipment to be sprayed. The heating module is sleeved on the outside of the varnish tank and is electrically connected to the main control module. Thus, when the insulating varnish in the varnish tank increases in viscosity due to low temperature, resulting in poor spraying effect or inability to spray, the heating module can be controlled by the main control module to heat the insulating varnish in the varnish tank, thereby slowing down the rate of increase in the viscosity of the insulating varnish in the varnish tank or reducing the viscosity of the insulating varnish, thereby improving the spraying effect of the insulating varnish. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a spraying device for repairing the insulation layer of power equipment, provided as an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of an opening and closing adjustment component provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of a spraying mechanism provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of an angle adjustment component and a movable housing provided in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of a fixing groove provided in an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the internal structure of a protective cover provided in an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of a nozzle provided in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of an extension rod provided in an embodiment of the present invention.

[0025] In the diagram: Main control module 10, heating module 20, handheld lever 30, extension lever 31, adjustment mechanism 40, angle adjustment component 41, second fixing component 411, third fixing component 412, fastener 413, opening and closing adjustment component 42, L-shaped connector 421, driving component 422, first fixing component 423, spraying mechanism 50, pneumatic component 51, first air pump 511, second air pump 512, paint tank 52, spray head 53, first spray head 531, second spray head 532, protective cover 54, movable housing 541, arc-shaped connector 5411, semi-circular fixing component 5412, non-movable housing 542, fixing groove 5421, air outlet 55, nozzle 56, wire clamp 60, heating component 70, U-shaped limit component 80, semi-circular slot 81. Detailed Implementation

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] See Figure 1-8 This invention provides a spraying device for repairing the insulation layer of power equipment. The spraying device includes a main control module 10, a heating module 20, a hand lever 30, an adjustment mechanism 40, and a spraying mechanism 50. The spraying mechanism 50 includes a pneumatic component 51, a paint tank 52, a nozzle 53, and a protective cover 54. The pneumatic component 51 is fixed to the lower end of the hand lever 30, the paint tank 52 is fixed to the upper end of the hand lever 30, the protective cover 54 is fixed to the top of the hand lever 30 through an adjustment mechanism 40, and the nozzle 53 is fixedly mounted on the protective cover 54 with the nozzle 56 facing the inside of the protective cover 54. The air outlet 55 of the pneumatic component 51 is connected to the upper end of the paint tank 52 through an air pipe, and the lower end of the paint tank 52 is connected to the paint inlet of the nozzle 53 through a paint pipe, so as to push the insulating paint in the paint tank 52 from the nozzle 53 through the air pressure. The adjustment mechanism 40 includes an angle adjustment component 41 and an opening / closing adjustment component 42. The lower end of the angle adjustment component 41 is fixedly connected to the top end of the hand lever 30, and the upper end is movably connected to the opening / closing adjustment component 42, for adjusting the angle between the protective cover 54 and the hand lever 30. The protective cover 54 includes a movable housing 541 and a non-movable housing 542. The fixed end of the driving component of the opening / closing adjustment component 42 is fixedly connected to the non-movable housing 542, and the driving end is movably connected to the movable housing 541, for adjusting the opening and closing of the protective cover 54. The main control module 10 is located at the lower end of the handheld lever 30. The heating module 20 is sleeved on the outside of the paint storage tank 52 and is electrically connected to the main control module 10. It is used to heat the insulating varnish in the paint storage tank 52 under the control of the main control module 10. The main control module 10 is electrically connected to the drive components of the pneumatic component 51 and the opening and closing adjustment component 42 to control the operation of the drive components of the pneumatic component 51 and the opening and closing adjustment component 42.

[0028] In this embodiment, the adjustment mechanism 40 can use air pressure to push the insulating varnish in the varnish storage tank 52 out of the nozzle 53. The adjustment mechanism 40 can adjust the angle between the protective cover 54 and the hand handle 30, as well as adjust the opening and closing of the protective cover 54, thereby realizing the spraying of insulating varnish on the electrical equipment to be sprayed. The heating module 20 is sleeved on the outside of the varnish storage tank 52 and is electrically connected to the main control module 10. Thus, when the insulating varnish in the varnish storage tank 52 becomes too cold and its viscosity increases, resulting in poor spraying effect or inability to spray, the main control module 10 can control the heating module 20 to work, thereby heating the insulating varnish in the varnish storage tank 52 to slow down the rate of increase in the viscosity of the insulating varnish in the varnish storage tank 52, or to reduce the viscosity of the insulating varnish, thereby improving the effect of insulating varnish spraying.

[0029] In one embodiment, the heating module 20 can be made into a sleeve structure for mounting the paint storage tank 52 in the sleeve.

[0030] Furthermore, in the spraying device provided by this invention, the spraying mechanism 50 is located at the top of the handheld lever 30 and can be controlled by the main control module 10 to operate the pneumatic component 51, thereby using air pressure to push the insulating paint in the paint storage tank 52 out of the nozzle 53. The opening and closing adjustment component 42 in the adjustment mechanism 40 can be controlled by the main control module 10 to operate the drive component, thereby controlling the opening and closing of the protective cover 54. Thus, during spraying operations, the operator only needs to hold the handheld lever 30 of the device, move the spraying mechanism 50 to the electrical equipment to be sprayed, then open the protective cover 54 through the control module so that the position to be sprayed is in the corresponding position on the protective cover 54, and then start the pneumatic component 51 through the control module to achieve spraying of the electrical equipment. Therefore, with this solution, operators only need to stand on the ground to perform insulating paint spraying repairs on electrical equipment at heights. Operators do not need to climb to install or dismantle equipment, especially for repairs such as wire clamps 60 and parts of electrical equipment with peeling insulation. This eliminates the need for long-distance, long-duration work and frequent device installation and disassembly, thus avoiding installation difficulties and offering convenient and quick operation. Furthermore, the device provided by this solution is characterized by its simple structure, lightweight design, and ease of use by operators.

[0031] In this embodiment, the handheld lever 30 can be a telescopic lever to achieve length adjustment. In one embodiment, the bottom of the handheld lever 30 can also be provided with threads, and several extension rods 31 of different lengths are provided. Each extension rod 31 can be threaded onto the handheld lever 30 to extend the length of the handheld lever 30 to meet the spraying requirements of electrical equipment located at different heights.

[0032] The spraying mechanism 50 can be composed of a pneumatic component 51, a paint tank 52, a nozzle 53, and a protective cover 54. The pneumatic component 51 is located at the lower end of the handle 30, reducing the weight at the top of the handle 30 and improving the device's balance when held, thus making the entire device easier to lift to a high position for spraying operations. The air outlet 55 of the pneumatic component 51 is connected to the upper end of the paint tank 52 via an air pipe, and the lower end of the paint tank 52 is connected to the paint inlet of the nozzle 53 via a paint pipe. Thus, by activating the pneumatic component 51, the insulating paint in the paint tank 52 can be pushed out along the paint pipe by air pressure, and then sprayed out from the nozzle 53 to achieve the spraying operation on the electrical equipment. In addition, the spraying mechanism 50 is equipped with a protective cover 54, which not only facilitates the fixing of the nozzle 53 to the protective cover 54, but also blocks the wind, preventing the insulating paint sprayed from the nozzle 53 from being blown away from the position of the electrical equipment to be sprayed, thus reducing the spraying effect and efficiency. In addition, the protective cover 54 can play a certain protective role, reducing the amount of dust, suspended matter and other debris falling on the undried insulating varnish during the spraying process, which would affect the insulation effect.

[0033] The opening and closing adjustment component 42 of the adjustment mechanism 40 may specifically include an L-shaped connector 421, a driving component 422, and a first fixing component 423. The upper end of the angle adjustment component 41 is fixedly connected to the L-shaped connector 421. A protrusion is provided on the longitudinal plate of the L-shaped connector 421, which can be movably connected to the bottom of the movable housing 541. The first fixing component 423 is fixed to the side of the longitudinal plate. The fixed end of the driving component 422 is fixedly connected to one end of the transverse plate, and the driving end is movably connected to the side of the movable housing 541. Thus, the non-movable housing 542 is the fixed half of the protective cover 54, and the movable housing 541 can close and open the protective cover 54 by extending and retracting the driving end of the driving component 422.

[0034] Both the drive component 422 and the pneumatic assembly 51 are electrically connected to the main control module 10, which is fixedly mounted below the handheld lever 30. The main control module 10 controls the operation of the drive component 422 to open or close the protective cover 54. Similarly, the main control module 10 controls the opening and closing of the pneumatic assembly 51, thereby causing the pneumatic assembly 51 to generate gas to drive the spraying of insulating varnish. In one embodiment, the main control module 10 can also be used to control the airflow of the pneumatic assembly 51, adjust the gas pressure in the varnish storage tank 52, and thus adjust the flow rate of the insulating varnish spraying.

[0035] Furthermore, in one embodiment, the pneumatic assembly 51 includes a first air pump 511 and a second air pump 512, and the nozzle 53 includes a first nozzle 531 and a second nozzle 532; the insulating varnish flow chamber and the gas flow chamber inside the first nozzle 531 and the second nozzle 532 are not connected; the first nozzle 531 and the second nozzle 532 each have two symmetrically arranged air outlets 55, and both are directly facing the path of the insulating varnish spray; the air pipe connected to the air outlet 55 of the first air pump 511 is connected to the upper end of the paint storage tank 52 and the air inlet of the first nozzle 531 respectively through a three-way component; the air outlet 55 of the second air pump 512 is connected to the air inlet of the second nozzle 532 through an air pipe; the paint pipe connected to the lower end of the paint storage tank 52 is connected to the paint inlet of the first nozzle 531 and the second nozzle 532 respectively through a three-way component.

[0036] Generally, the nozzle 56 on the spray head 53 is set as a round hole, resulting in a divergent cone-shaped spray of insulating varnish. This leads to poor efficiency and effectiveness in spraying electrical equipment, and it is easy to spray outside the electrical equipment, resulting in waste of insulating varnish. Moreover, it is difficult to ensure uniformity of spraying on regularly shaped electrical equipment, and repeated spraying is required to ensure uniformity as much as possible. In order to reduce the size of the spray head 53 while improving the uniformity and efficiency of spraying, this solution considers symmetrically setting two air outlets 55 on the provided spray head 53, both facing the path of the insulating varnish spray. That is, the two air outlets 55 are symmetrically set on both sides of the nozzle 56. In this way, when the nozzle 56 sprays insulating varnish, the gas sprayed from the two air outlets 55 will be blown in the opposite direction at the same time, so that the insulating varnish sprayed in the middle forms a sheet-like spray. This sheet-like spray is not only more uniform, but also more suitable for spraying electrical equipment with regular edges, such as connectors and wire clamps 60.

[0037] Furthermore, each nozzle 53 requires an air pump to operate. Using a single nozzle 53 and a single air pump reduces the uniformity and efficiency of the insulating varnish spraying. If more than two nozzles 53 are used, a corresponding number of air pumps are needed, significantly increasing the size and weight of the entire device and making handheld operation more difficult for workers. This embodiment considers using two nozzles 53, allowing the insulating varnish to be sprayed onto the electrical equipment from different angles, thereby improving the efficiency and uniformity of the spraying.

[0038] For example, two fixing slots 5421 can be respectively provided on the upper and lower sides of the non-movable housing 542 of the protective cover 54, and the bottom end of each of the two fixing slots 5421 has an opening; the first spray head 531 and the second spray head 532 are respectively used to install in the two fixing slots 5421, and the bottom ends of the first spray head 531 and the second spray head 532 are fixed to the outside of the non-movable housing 542 through the openings at the bottom ends of the fixing slots 5421. In this embodiment, by fixing the first spray head 531 and the second spray head 532 respectively on the upper and lower sides of the non-movable housing 542 of the protective cover 54, insulating paint can be sprayed on the electrical equipment to be sprayed from two angles simultaneously. Figure 6 As shown, the wire clamp 60 can be sprayed from two angles: the lower left and the upper left.

[0039] Of course, it is easy to understand that holes should also be provided for the air pipe and paint pipe to pass through the outside of the protective cover and connect to the inside of the protective cover to the nozzle. For example, a through hole can be provided near the fixing groove 5421 located on the lower left for mounting the first nozzle 531, so that the air pipe and paint pipe can pass through from the outside and connect to the first nozzle 531 and the second nozzle 532.

[0040] In one embodiment, the air hoses connecting the first air pump 511 and the second air pump 512 are secured to the handheld handle 30 using clips to make the entire device more compact. Furthermore, in practical applications, when operators hold the device, the wind force at high altitudes is typically greater than at ground level, easily causing the air hoses to swing, increasing the difficulty of holding the device and reducing its stability. The solution provided in this embodiment avoids the air hoses being blown around by the wind, reducing the difficulty of operation for operators and improving the stability of the device.

[0041] To further reduce the impact of the high viscosity of the insulating varnish on the spraying effect, in one embodiment, heating components 70 are installed on both the first air pump 511 and the second air pump 512. These heating components 70 are electrically connected to the main control module 10 and, under the control of the main control module 10, heat the gas entering the first air pump 511 and the second air pump 512. This results in a higher temperature of the gas propelling the insulating varnish outwards, increasing the propelling pressure while simultaneously reducing the viscosity of the insulating varnish, thereby improving the spraying effect. It is readily understood that to reduce heat loss from the hot gas and insulating varnish in the pipes, insulation layers should be installed on the exterior of both the air pipes and the varnish pipes.

[0042] Furthermore, to ensure the accuracy of the spraying position on the electrical equipment, while improving spraying efficiency and reducing the waste of insulating varnish, a limiting component is considered to confine the electrical equipment to be sprayed within the spraying range of the nozzle 53. Specifically, the spraying device also includes a U-shaped limiting component 80, the bottom edge of which is fixed to the inner side of the movable housing 541. Two sets of semi-circular slots 81 are symmetrically arranged on the two U-shaped sides for securing cables. The nozzles 56 of the first nozzle 531 and the second nozzle 532 are both directly opposite the middle position of the two U-shaped sides. In this embodiment, the U-shaped limiting component 80 can confine the electrical equipment to be sprayed between the two U-shaped sides, and the nozzles 56 of the first nozzle 531 and the second nozzle 532 are both directly opposite the middle position of the two U-shaped sides, thereby ensuring the accuracy and efficiency of spraying, while reducing the waste of insulating varnish caused by not spraying on the electrical equipment to be sprayed. Moreover, the U-shaped limiting component 80 provided in this embodiment can be applied to various electrical equipment. For example, when the electrical equipment to be coated is a cable, the cable can be clamped using a semi-circular slot 81 on each of the two U-shaped sides. The desired coating position can be adjusted between the two U-shaped sides for accurate and rapid coating. As another example, as shown in the figure, when the electrical equipment is a cable clamp 60 used to connect two cables with different shafts, the device can clamp the cable using semi-circular slots 81 in different rows at the front and rear, so that the cable clamp 60 is positioned between the two U-shaped sides. Of course, in some embodiments, different slot structures can be used to accommodate electrical equipment with different structures.

[0043] To prevent insulating varnish from being sprayed onto the inner wall of the protective cover 54, an oil-absorbing blanket can also be installed on the inner wall of the protective cover 54.

[0044] For some power equipment in relatively complex application environments, directly launching the spraying device to a high altitude for spraying may not confine the equipment to the spraying position within the protective cover 54. Therefore, it is considered to adjust the angle between the protective cover 54 and the handheld lever 30 using the angle adjustment component 41 to adapt to more complex spraying environments. Specifically, the angle adjustment component 41 includes a second fixing member 411, a third fixing member 412, and a fastener 413. One end of the second fixing member 411 is fixedly connected to the top of the handheld lever 30, and the other end is provided with a fixing hole. One end of the third fixing member 412 is fixedly connected to the intersection of the longitudinal plate and the transverse plate of the L-shaped connector 421, and the other end is provided with a fixing hole. The fastener 413 passes through the fixing holes on the second fixing member 411 and the third fixing member 412, connecting the second fixing member 411 and the third fixing member 412 in an adjustable manner.

[0045] In this embodiment, the second fixing member 411 and the third fixing member 412 are movably connected by a fastener 413. By adjusting the fastener 413, the angle between the second fixing member 411 and the third fixing member 412 can be adjusted, thereby adjusting the angle between the handle 30 and the protective cover 54. Thus, in practical applications, the angle between the handle 30 and the protective cover 54 can be adjusted using the fastener 413 to adapt to specific application environments. Specifically, the angle between the handle 30 and the protective cover 54 can be adjusted within a 180-degree range using the fastener 413, and the adjustment direction can be perpendicular to the opening and closing direction of the protective cover.

[0046] In addition, to reduce the weight of the entire device and facilitate operation by operators, the protective cover 54 can be made of lightweight plastic. To improve the firmness of the connection between the opening and closing adjustment component 42 and the protective cover 54, and to reduce the problem of easy breakage or damage at the fixed connection of the plastic protective cover 54, it is considered to provide an arc-shaped connector 5411 and a semi-circular fixing component 5412 on the movable housing 541. The inner sides of the arc-shaped connector 5411 and the semi-circular fixing component 5412 can fit against the movable housing 541. The semi-circular fixing component 5412 is fixed to the movable housing 541 with the arc edge facing downward. The top of the arc edge is fixedly connected to one end of the arc-shaped connector 5411. The other end of the arc-shaped connector 5411 is movably connected to the protrusion. The driving end of the driving part is movably connected to the middle position of the arc-shaped connector 5411.

[0047] Since the movable housing 541 needs to be opened and closed frequently, it is more prone to problems such as insecure fixation, damage or breakage of the fixing points. Therefore, this embodiment considers setting an arc-shaped connector 5411 and a semi-circular fixing member 5412 on the outer side of the movable housing 541. The inner sides of the arc-shaped connector 5411 and the semi-circular fixing member 5412 can fit against the outer wall of the movable housing 541. In this way, the fixing connection surface is larger, and the force on the protective cover 54 is more dispersed, making the fixation between the protective cover 54 and the opening and closing adjustment component 42 more secure, and less prone to problems such as damage or breakage of the fixing points.

[0048] Furthermore, when using the device provided by this invention to repair the insulation layer of electrical equipment, firstly, a suitable extension rod 31 is selected according to the location of the electrical equipment to be sprayed, and the angle between the protective cover 54 and the handheld rod 30 is adjusted. For example, an extension rod 31 of appropriate length is selected according to the height of the electrical equipment to be sprayed. Based on the angle of the electrical equipment to be sprayed and the positional relationship between adjacent electrical equipment, the angle adjustment component 41 of the adjustment mechanism 40 is used to adjust the angle of the protective cover 54 and the handheld rod 30 so that the electrical equipment to be sprayed can be located inside the protective cover 54. After the adjustment is completed, insulating varnish is added to the paint storage tank 52, and the heating module 20 is adjusted by the main control module 10 to ensure that the heating module 20 is at a suitable temperature, so as to ensure that the viscosity of the insulating varnish in the paint storage tank 52 meets the requirements for spraying. Then, the operator uses the extension rod 31 to deliver the device to the electrical equipment to be sprayed, and opens the protective cover 54 via the main control module 10. After the protective cover 54 is opened, the electrical equipment to be sprayed is confined between the two U-shaped sides of the U-shaped limiting member 80 inside the protective cover 54. At this time, the main control module 10 can be used to control the protective cover 54 to close and control the pneumatic component 51 to open, thus realizing the operation of spraying the electrical equipment. In order to ensure the uniformity of spraying, after one side is sprayed, the protective cover 54 is opened, and the device is rotated so that the other side faces the nozzle 53, so as to perform the above spraying operation again. It can be seen that the device of this solution is lightweight, easy to carry, and easy to operate, and can be applied to the spraying operation of various electrical equipment. It is especially suitable for the repair of electrical equipment with peeling insulation.

[0049] In addition, in one embodiment, the device may also include a remote controller that is communicatively connected to the main control module to control the various drive components and heating modules via the remote controller.

[0050] The modules or units in the device of this invention can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this invention still fall within the scope of the invention.

Claims

1. A spraying device for repairing the insulation layer of power equipment, characterized in that, The spraying device includes a main control module, a heating module, a hand lever, an adjustment mechanism, and a spraying mechanism; The spraying mechanism includes a pneumatic component, a paint reservoir, a nozzle, and a protective cover. The pneumatic component is fixed to the lower end of the hand handle, the paint reservoir is fixed to the upper end of the hand handle, the protective cover is fixed to the top of the hand handle via the adjustment mechanism, and the nozzle is fixedly mounted on the protective cover with the nozzle facing the inside of the protective cover. The air outlet of the pneumatic component is connected to the upper end of the paint reservoir via an air pipe, and the lower end of the paint reservoir is connected to the paint inlet of the nozzle via a paint pipe, so as to use air pressure to push the insulating paint in the paint reservoir from the nozzle. The adjustment mechanism includes an angle adjustment component and an opening / closing adjustment component. The lower end of the angle adjustment component is fixedly connected to the top end of the handheld lever, and the upper end is movably connected to the opening / closing adjustment component to adjust the angle between the protective cover and the handheld lever. The protective cover includes a movable shell and a non-movable shell. The fixed end of the driving component of the opening / closing adjustment component is fixedly connected to the non-movable shell, and the driving end is movably connected to the movable shell to adjust the opening and closing of the protective cover. The main control module is located at the lower end of the handheld lever. The heating module is sleeved on the outside of the paint storage tank and is electrically connected to the main control module. It is used to heat the insulating paint in the paint storage tank under the control of the main control module. The main control module is electrically connected to the drive components of the pneumatic component and the opening and closing adjustment component to control the operation of the drive components of the pneumatic component and the opening and closing adjustment component. The opening and closing adjustment assembly includes an L-shaped connector, a driving component, and a first fixing component. The upper end of the angle adjustment assembly is fixedly connected to the intersection of the longitudinal plate and the transverse plate of the L-shaped connector. The upper end of the longitudinal plate of the L-shaped connector is provided with a protrusion. The L-shaped connector is movably connected to the bottom of the movable housing through the protrusion. The side of the longitudinal plate of the L-shaped connector is fixedly connected to one end of the first fixing component, and the other end of the first fixing component is fixedly connected to the non-movable housing. The fixed end of the driving component is fixedly connected to the side of the transverse plate of the L-shaped connector away from the longitudinal plate, and the driving end is movably connected to the side of the movable housing, so as to control the opening and closing of the movable housing of the protective cover through the driving component.

2. The spraying device for repairing the insulation layer of power equipment according to claim 1, characterized in that, The pneumatic assembly includes a first air pump and a second air pump, and the nozzle includes a first nozzle and a second nozzle. The insulating varnish flow chamber and the gas flow chamber inside the first nozzle and the second nozzle are not connected. The first nozzle and the second nozzle each have two symmetrically arranged air outlets, both facing the path of the insulating varnish spray. The air pipe connected to the air outlet of the first air pump is connected to the upper end of the varnish storage tank and the air inlet of the first nozzle respectively through a three-way component. The air outlet of the second air pump is connected to the air inlet of the second nozzle through an air pipe. The varnish pipe connected to the lower end of the varnish storage tank is connected to the varnish inlet of the first nozzle and the second nozzle respectively through a three-way component.

3. The spraying device for repairing the insulation layer of power equipment according to claim 2, characterized in that, Both the first and second air pumps are equipped with heating components, which are electrically connected to the main control module to heat the gas entering the first and second air pumps under the control of the main control module.

4. The spraying device for repairing the insulation layer of power equipment according to claim 2, characterized in that, Both the gas pipe and the paint pipe are provided with an insulation layer on the outside.

5. The spraying apparatus for repairing the insulation layer of power equipment according to claim 2, characterized in that, The non-movable shell of the protective cover is provided with fixing grooves on the upper and lower sides, and the bottom of the two fixing grooves is provided with openings; the first nozzle and the second nozzle are respectively installed in the two fixing grooves, and the bottom ends of the first nozzle and the second nozzle are fixed to the outside of the non-movable shell through the openings at the bottom of the fixing grooves.

6. The spraying apparatus for repairing the insulation layer of power equipment according to claim 5, characterized in that, The spraying device also includes a U-shaped limiting component, the bottom edge of which is fixed to the inside of the movable housing. Two sets of semi-circular slots are symmetrically arranged on the two U-shaped sides for securing cables. The nozzles of the first and second spray heads are both positioned in the middle of the two U-shaped sides.

7. The spraying apparatus for repairing the insulation layer of power equipment according to claim 1, characterized in that, The angle adjustment assembly includes a second fixing member, a third fixing member, and a fastener. One end of the second fixing member is fixedly connected to the top of the hand handle, and the other end is provided with a fixing hole. One end of the third fixing member is fixedly connected to the intersection of the longitudinal plate and the transverse plate of the L-shaped connector, and the other end is provided with a fixing hole. The fastener passes through the fixing holes on the second fixing member and the third fixing member, and connects the second fixing member and the third fixing member in an adjustable manner.

8. The spraying apparatus for repairing the insulation layer of power equipment according to claim 1, characterized in that, The movable housing is provided with an arc-shaped connector and a semi-circular fixing member. The inner sides of the arc-shaped connector and the semi-circular fixing member can fit against the movable housing. The semi-circular fixing member is fixed to the movable housing with the arc-shaped edge facing downward. The top end of the arc-shaped edge is fixedly connected to one end of the arc-shaped connector, and the other end of the arc-shaped connector is movably connected to the protrusion. The driving end of the driving component is movably connected to the middle position of the arc-shaped connector.

9. The spraying apparatus for repairing the insulation layer of power equipment according to any one of claims 1 to 8, characterized in that, The bottom end of the handheld lever is threaded to fit an extension rod, thereby extending the length of the handheld lever.

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