Portable spraying device and method for insulation spraying of power transmission and distribution line

Abstract

The invention relates to the technical field of spraying devices, and provides a portable spraying device and method for power transmission and distribution line insulation spraying, and the device comprises a main box body, a plurality of insulation paint containers arranged on the main box body, an insulation operation rod, and a direction adjustment device. Each insulating paint container is connected with an independent conduit, the conduit penetrates through the insulating operating rod, the tail end of the conduit extending out of the insulating operating rod is connected with a mixing pipe, and a nozzle is arranged on the mixing pipe; the tail end of the insulating operating rod is connected with the mixing pipe through a direction adjusting device, the direction adjusting device comprises at least two connecting rods which are rotatably connected, and direction adjustment is achieved through the rotatable connection between the connecting rods. And the insulating operating rod capable of adjusting the spraying angle is arranged, so that the spraying angle is adjusted, spraying dead angles are reduced, and the protection effect of the sprayed circuit can be greatly improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of spraying devices, and more particularly, to a portable spraying device and method for insulating spraying of power transmission and distribution lines. Background Art

[0002] The statements in this section merely provide background technical information related to the present disclosure and do not necessarily constitute prior art.

[0003] During the operation and maintenance of power distribution lines, the conductors, fittings, and various accessories are mechanically connected to form a large number of "T-joints" and equipment connection points in the line. There is a widespread phenomenon of metal exposure at these locations, especially concentrated near the poles and towers, which is extremely likely to cause short-circuit tripping or electric shock accidents due to external environmental factors such as bird damage, foreign objects blown by the wind, and rain erosion. Therefore, how to effectively insulate and protect the above-mentioned metal exposed points has become an important issue in the safe operation of power distribution lines.

[0004] To solve this problem, traditional methods mostly use the method of installing insulating sheaths to physically shield and protect the "T-joints" and power equipment connection points. Although this method can provide basic insulation protection to a certain extent, there are still many defects in practical applications. Specifically, it includes: the insulating sheath is prone to generate gaps after installation, and external foreign objects such as metal wires and branches may still enter, resulting in tripping accidents; the sealing performance between the sheath and the metal surface is poor, and it is easy to enter and accumulate water inside, inducing rust and a decline in insulation performance; the buckle of the sheath becomes loose after long-term operation, posing a risk of falling off; in addition, this method has a high construction difficulty, requires manual climbing of the tower for close-range operation, or arranges power outage operations, increasing the construction risk and cost, and reducing the operation and maintenance efficiency.

[0005] To overcome the above problems, in recent years, the method of spraying insulating materials has been gradually promoted for insulating transformation of power distribution lines. This method directly sprays insulating materials on the surfaces of conductors, fittings, and connection parts through a special spraying device to form a uniform insulating layer and improve the protection performance. Existing spraying devices for power transmission and distribution lines are equipped with a traveling mechanism to move along the conductor trajectory and synchronously complete the spraying operation, which has certain automation advantages. The inventor found that such spraying devices need to be fixed on the conductor for operation, and the spraying angle is difficult to adjust flexibly. Especially in complex "T-joints" or non-linear areas where the conductor has corners or branches, spraying is prone to problems such as incomplete coverage and limited angle, forming spraying dead zones, reducing the insulation protection effect, and restricting the application scope and effect of spraying technology. Summary of the Invention

[0006] To solve the above problems, the present disclosure proposes a portable spraying device and method for insulating spraying of power transmission and distribution lines, provided with an insulating operating rod capable of adjusting the spraying angle, realizing the adjustment of the spraying angle, reducing the spraying dead angle, and greatly improving the protection effect of the line after spraying.

[0007] To achieve the above object, the present disclosure adopts the following technical solutions:

[0008] One or more embodiments provide a portable spraying device for insulating spraying of power transmission and distribution lines, including a main box body, a plurality of insulating paint containers arranged on the main box body, an insulating operating rod, and a direction adjusting device;

[0009] Each insulating paint container is connected to an independent conduit, the conduit penetrates through the insulating operating rod, and the end of the conduit extending out of the insulating operating rod is connected to a mixing tube, and a nozzle is arranged on the mixing tube;

[0010] The end of the insulating operating rod is connected to the mixing tube through a direction adjusting device, and the direction adjusting device includes at least two rotatably connected connecting rods, and the direction adjustment is realized through the rotatable connection between the connecting rods.

[0011] One or more embodiments provide a spraying method based on the above portable spraying device for insulating spraying of power transmission and distribution lines, including the following steps:

[0012] According to the relative position relationship between the position to be sprayed and the insulating operating rod, adjust the direction adjusting device and the angle of the insulating operating rod so that the nozzle faces the position to be sprayed;

[0013] Start the pneumatic mechanism, electric mechanism and feeding mechanism to work, and push each paint into each conduit respectively;

[0014] The paints in each conduit enter the mixing tube, and the paints entering the mixing tube push the spiral-shaped spiral rod to rotate to achieve mixing;

[0015] The mixed paint is sprayed out at the nozzle based on the atomization effect of compressed gas and sprayed on the position to be sprayed.

[0016] Compared with the prior art, the beneficial effects of the present disclosure are:

[0017] In this embodiment, by arranging a mixing tube at the front end of the nozzle, rapid mixing of multi-component insulating spraying materials before spraying is realized, ensuring the activity and adhesiveness of the paint; the mixture is atomized by high-pressure gas, improving the spraying efficiency and coating uniformity, and effectively avoiding the problem of insufficient thickness of the traditional spray coating; a direction adjusting device is provided at the end of the operating rod, and the spraying angle can be flexibly adjusted according to the line structure, overcoming the deficiency of the traditional device having a spraying dead angle at non-linear structures, significantly improving the insulating spraying coverage rate and reliability, with strong adaptability and being applicable to a variety of complex operation scenarios.

[0018] The advantages of the present disclosure and the advantages of additional aspects will be described in detail in the following specific embodiments. Brief Description of the Drawings

[0019] The accompanying drawings forming a part of this disclosure are used to provide a further understanding of the present disclosure. The schematic embodiments and descriptions thereof of the present disclosure are used to explain the present disclosure and do not constitute a limitation to the present disclosure.

[0020] Figure 1 is a schematic structural diagram of the spraying device according to Embodiment 1 of the present disclosure;

[0021] Figure 2 is a schematic structural diagram of the push rod mechanism of the spraying device according to Embodiment 1 of the present disclosure;

[0022] Figure 3 is a schematic structural diagram of the insulating operating rod according to Embodiment 1 of the present disclosure;

[0023] Figure 4 is a schematic structural diagram of the insulating operating rod provided with a direction adjusting device according to Embodiment 1 of the present disclosure;

[0024] Figure 5 is a schematic structural diagram of the main box body according to Embodiment 1 of the present disclosure;

[0025] Wherein: 100, main box body; 101, compressed gas output port; 102, first through hole; 103, control unit; 104, pneumatic mechanism gas outlet; 105, heating assembly;

[0026] 200, battery; 300, insulating paint container; 301, push rod; 302, first container; 303, second container; 304, first container paint output port; 305, second container paint output port;

[0027] 400, insulating operating rod; 401, air pipe; 402, first conduit; 403, second conduit; 406, mixing pipe; 407, nozzle; 500, direction adjusting device; 501, first connecting rod; 502, second connecting rod; 503, bolt A; 504, fastening bolt. Detailed Description of the Specific Embodiments

[0028] The present disclosure will be further described below in conjunction with the drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations of the present disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof. It should be noted that, without conflict, the various embodiments and features in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the drawings.

[0031] Embodiment 1

[0032] In the technical solutions disclosed in one or more embodiments, as Figures 1 to 5 shown, a portable spraying device for insulating spraying of power transmission and distribution lines includes a main box body 100, a plurality of insulating paint containers 300 arranged on the main box body 100, an insulating operating rod 400, and a direction adjusting device 500; each insulating paint container 300 is connected to an independent conduit, the conduit passes through the insulating operating rod 400, and the end of the conduit extending out of the insulating operating rod 400 is connected to a mixing pipe 406, and a nozzle 407 is arranged on the mixing pipe 406; the end of the insulating operating rod 400 is connected to the mixing pipe 406 through the direction adjusting device 500, and the direction adjusting device 500 includes at least two rotatably connected connecting rods, and the direction adjustment is realized by the rotatable connection between the connecting rods.

[0033] In this embodiment, on the one hand, a plurality of insulating paint containers 300 are respectively filled with insulating spraying materials (such as material A and material B), and each container is connected to the mixing pipe 406 through an independent conduit. The mixed materials are atomized and sprayed through the nozzle 407 under the push of high-pressure gas. The device of this embodiment transports different paints through independent conduits and mixes them at the end of the spraying device, effectively avoiding premature reactions of the materials in the conduits. Therefore, special paints that can increase the viscosity or shorten the setting time after chemical reaction can be used to enhance the effect of the sprayed film.

[0034] On the other hand, the provided direction adjusting device 500 is composed of a first connecting rod and a second connecting rod, and the connecting rods are rotatably connected by bolts, and the angle of the nozzle 407 can be adjusted to cope with T-joints or line turning parts at different angles, so as to realize directional spraying operations. The provided direction adjusting device 500 can realize multi-angle rotation adjustment of the nozzle 407, effectively covering complex structures such as wire nodes, corners, and branches, avoiding spraying dead angles, having strong applicability and flexible operation.

[0035] In this embodiment, a mixing tube 406 is provided at the front end of the nozzle 407 to achieve rapid mixing of multi-component insulating spraying materials before spraying, ensuring the activity and adhesiveness of the coating; the mixture is atomized by high-pressure gas to improve the spraying efficiency and coating uniformity, effectively avoiding the problem of insufficient thickness of the traditional spray coating; a direction adjustment device 500 is provided at the end of the operating rod, which can flexibly adjust the spraying angle according to the line structure, overcoming the deficiency of the traditional device having spraying dead angles at non-linear structures, significantly improving the insulating spraying coverage rate and reliability, with strong adaptability and being suitable for a variety of complex operation scenarios.

[0036] In some embodiments, the direction adjustment device 500 includes at least two link rods that are rotatably connected. The direction adjustment is achieved through the rotatable connection between the link rods. Specifically, in this embodiment, the direction adjustment device 500 includes a first link rod 501 and a second link rod 502; the second link rod 502 includes two relatively arranged strip-shaped plates, and the two strip-shaped plates form a clamping structure with a gap. One end of the first link rod 501 is placed in the gap in the middle of one end of the clamping structure, and one end of the first link rod 501 is rotatably connected; the other end of the clamping mechanism clamps the mixing tube 406; the first link rod 501 is fixed to the end of the insulating operating rod 400.

[0037] In one embodiment, the first link rod 501 and the second link rod 502 can be rotatably connected by a bolt A503.

[0038] During use, the above direction adjustment device 500 can achieve manual direction adjustment. After loosening the bolt, the second link rod 502 can be rotated so that the second link rod 502 rotates around the axis of the bolt A503 relative to the insulating operating rod 400; the insulating operating rod 400 can rotate. In this embodiment, the direction adjustment of the direction adjustment device 500 and the rotation direction of the insulating operating rod 400 are two orthogonal directions, and the cooperation of the two directions can achieve multiple-angle adjustments, so as to achieve comprehensive spraying of the power transmission and distribution lines and their components.

[0039] Furthermore, the other end of the clamping structure formed by the second link rod 502 is fixed by a fastening bolt 504. The middle gap of the clamping structure is adjusted by the fastening bolt 504, and the mixing tube 406 is placed in the gap between the two strip-shaped plates to clamp the mixing tube 406.

[0040] Optionally, the material of the insulating operating rod 400 can be selected from carbon fiber or insulating plastic to further reduce the weight and improve the operation safety.

[0041] Furthermore, the connection between the connecting rods of the direction adjustment device 500 can be replaced with a rack and pinion mechanism, including a gear driving device, a meshing gear assembly, and a rack assembly. The rack assembly is connected to the mixing pipe 406 through the second connecting rod 502. The gear assembly is used to adjust the rotational motion of the gear driving device, and the rack assembly is used to convert the rotational motion into linear motion, thereby driving the nozzle 407 to perform precise adjustment of the pitch angle or the horizontal angle.

[0042] The gear driving device is connected with an operation button or a remote control device, and the operation button is arranged at the hand-held end of the insulating operating rod.

[0043] In this embodiment, the gear driving device can adopt a small motor as the power source to drive the rotation of the driving gear in the gear assembly. The driving gear meshes with the driven gear, and the driven gear is connected to the rack assembly. The rack assembly drives the nozzle 407 to perform precise adjustment of the pitch angle or the horizontal angle through the second connecting rod 502. The rack assembly is used to convert the rotational motion into linear adjustment, and can realize small-amplitude movement adjustment of the nozzle 407 in the front-back or up-down direction. This structure can fix the current angle through the limit block and the locking mechanism to ensure the stability and repeatability of the spraying direction during the operation, and is applicable to scenarios with high requirements for the accuracy of the spraying angle.

[0044] In some embodiments, each independent conduit connected to the insulating paint container 300 is made of a soft material, such as a plastic pipe. The conduit made of a soft material can facilitate the direction adjustment device 500 to adjust the direction.

[0045] It can be understood that the spraying device further includes a pneumatic device, which can be arranged in the main box body 100 and is used to generate compressed gas and transmit it to the nozzle 407 on the mixing pipe 406 through the air pipe 401.

[0046] In some embodiments, the main box body 100 serves as an overall structure support to carry the electric mechanism and the pneumatic mechanism of the spraying device. The two are respectively used to drive the conveying and mixing spraying processes of the insulating paint. A battery 200 can also be arranged outside the main box body 100 to provide electric energy for the operation of the spraying device.

[0047] The pneumatic mechanism can be arranged on one side inside the main box body 100, and its function is to compress air to generate high-pressure gas for atomizing and spraying the mixed insulating paint. A pneumatic mechanism gas outlet 104 is arranged on the side wall of the main box body 100, and the pneumatic mechanism gas outlet 104 is connected to the insulating operating rod 400 through the air pipe 401 to form a high-pressure air flow path.

[0048] Optionally, an insulating paint container 300 is provided outside the main box body 100. A feeding mechanism is connected to the insulating paint container 300. The feeding mechanism is connected to an electric mechanism inside the main box body 100 through a first through hole 102, and is used to drive the feeding mechanism to provide kinetic energy to push out the paint in the insulating paint container 300 and convey it to the mixing pipe 406 through a separate conduit.

[0049] In a possible implementation manner, a feeding mechanism is provided on the insulating paint container 300. The feeding mechanism includes a hollow push rod 301. One end of the push rod 301 is connected to the vent hole on the upper end surface of the insulating paint container 300, and the other end of the push rod 301 is connected to the compressed gas output port 101 of the pneumatic mechanism.

[0050] In this implementation manner, the insulating paint container 300 contains the insulating material to be sprayed (such as component A or B). Its upper end surface is provided with a vent, and the vent is connected to the hollow push rod 301 through a sealing interface. One end of the push rod 301 is inserted into the vent, and the other end is connected to the compressed gas output port 101 of the pneumatic mechanism. When the pneumatic mechanism is started, high-pressure gas is injected into the upper end of the container through the push rod 301 to form a closed air pressure environment, so as to apply a stable pressure to the paint in the container and push it to flow out along the outlet into the spraying conduit, realizing the automatic conveying of the paint. By controlling the air supply pressure and on / off of the pneumatic mechanism, the regulation of the paint conveying flow rate and the start / stop control can be realized.

[0051] The use of a hollow push rod structure and a pneumatic driving method realizes a non-contact paint conveying method without mechanical propulsion components, with a simple structure, fast response speed, effectively reducing the volume and mass of the device and improving portability. At the same time, the pneumatic method can adjust the conveying pressure in real time to ensure that paints with different viscosities can be smoothly output, avoiding the possible problems of jamming or uneven propulsion in the traditional push rod pressing method. In addition, the use of the compressed gas pushing method can reduce the complexity of the container structure, facilitate subsequent replacement and maintenance, and further reduce the maintenance cost.

[0052] In the above implementation manner, the structure of the push rod 301 can be changed to a flexible air pipe or a rigid air pipe, and a one-way check valve can be used to improve airtightness and safety; in addition, the vent hole can adopt a quick-connect joint method to improve the assembly efficiency.

[0053] Optionally, on the pipeline connecting the push rod 301 and the compressed gas of the pneumatic mechanism, a pneumatic pressure regulating valve, a solenoid valve or a remote wireless control device can also be provided to realize the refined management of pneumatic output.

[0054] In this embodiment, the same pneumatic device is used to split the output gas through a pipeline. The gas flow rate of the branch pipeline can be controlled. At the same time, the same pneumatic device has transmitted the compressed gas to the nozzle 407 during the process of compressing and outputting the paint, and can realize efficient spraying control.

[0055] In another possible embodiment, a pushing mechanism is provided on the insulating paint container 300. The pushing mechanism includes a push rod 301 and a piston head. The push rod 301 is connected to a pushing motor to drive the movement of the push rod 301. The piston head is used to compress the paint in the insulating paint container 300. The pushing motor is powered by a battery 200.

[0056] In this embodiment, by configuring a pushing mechanism with a push rod 301 and a piston head on the insulating paint container 300, quantitative delivery of the paint in the container is achieved. One end of the push rod 301 is connected to a pushing motor. After the pushing motor is started, it drives the push rod 301 to move forward at a predetermined speed, pushing the piston head provided at the front end of the push rod to move along the axial direction of the container, thereby applying a uniform pressure to the insulating paint in the container and enabling it to be stably output through a conduit. Since the pushing structure is controlled by a motor, its output pressure and propulsion speed are adjustable, which helps to maintain continuous and uniform feeding of the paint into the mixing tube 406, complete rapid mixing with another group of paint in the mixing chamber, and be sprayed out by a nozzle 407 to form a uniform spray coating.

[0057] The electric pushing mechanism has higher controllability and precision compared to the pneumatic pressing method. By directly driving the piston head through the motor-driven push rod, the flow rate and feeding amount of the spraying material can be accurately controlled, ensuring accurate mixing ratio, improving the uniformity and insulating performance of the spray coating. At the same time, the motor-driven structure is convenient for adjusting parameters and automatic control, reducing the operation difficulty and enhancing the adaptability of the spraying device to different spraying requirements. In addition, the piston pushing structure ensures the airtightness of the container while avoiding the problems of pressing lag and instability existing in compressed air, improving the spraying quality.

[0058] Specifically, as Figure 2 shown, taking the setting of two insulating paint containers 300 as an example, including a first container 302 and a second container 303, the first container paint output port 304 of the first container 302 is transmitted to a first conduit 402, and the second container paint output port 305 of the second container 303 is connected to a second conduit 403. Under the action of the push rod 301, the paint is respectively transmitted to the mixing tube 406.

[0059] An implementable technical solution further includes a control unit 103, including a control circuit board and control switches for the electric mechanism and the pneumatic mechanism. The control switches may include a switch for the push rod mechanism, a speed regulation knob, a start button for the pneumatic mechanism, and a size adjustment knob. A control circuit may be provided on the control circuit board. The control switches can centrally control the start and stop, flow rate adjustment, and safety protection of the entire spraying device.

[0060] Further, at the container outlet of the insulation coating container 300, a heating component 105 is provided; the heating component 105 can adopt a strip-shaped electric heating structure, which is wound around the outside of the container outlet of the insulation coating container 300 to the conduit, and is used to preheat the insulation coating to optimize its fluidity and spraying effect. The heating component 105 is electrically connected to the control unit 103, and a control panel for the heating component is arranged on the control unit 103.

[0061] Further, the separately provided coatings include coating A and coating B. After coating A and coating B are mixed and react, the viscosity increases and the setting time is shortened;

[0062] Among them, coating A can be a coating containing polymer nanomaterials;

[0063] Coating B is a coating containing a curing agent;

[0064] Optionally, the mass ratio of coating A to coating B can be 0.8 - 1.2, and the preferred mass ratio is 1:1;

[0065] In this embodiment, a two-component spraying material is adopted. Before spraying, the two materials are quickly mixed. After mixing, the two components react and start to become viscous. This solves the problem that when a single-component material is used as the spraying material, its state is relatively thin and it is easy to cause dripping of the insulation spraying material and deformation of the coating. Subsequently, the mixed material is sprayed out through high-pressure gas. After being sprayed out, the material falls on the surface of the object and remains viscous and does not sag. In this way, the coating meets the thickness requirements, solves the problem that the sprayed coating is too thin to meet the live-line detection standard, and further solves the problems of a long solidification cycle of the material, the need for multiple spraying operations, a long construction cycle, and a high construction cost.

[0066] It is achievable that the outer shell of the main box body 100 can be made of insulating and lightweight materials such as high-strength engineering plastics or aluminum alloy plate materials, which is convenient for on-site handling and carrying during high-altitude operations. The outside of the main box body 100 can be configured with a handle, an installation groove, and a battery buckle position for connecting the lithium battery 200 and other accessory components.

[0067] A further technical solution is that the mixing tube 406 includes a tube body, a coating mixing port and a ventilation port arranged on the tube body, and a spiral rod penetrating through the tube body; the coating mixing port is used to connect each conduit for transporting the coating, the ventilation port is used to connect the air pipe 401, and the ventilation port is arranged at one end close to the nozzle 407; the coating in the mixing tube 406 enters the tube body. Since the coating is pressed into the mixing tube 406 and has a certain pressure, the spiral rod in a spiral shape rotates to achieve mixing;

[0068] Optionally, the mixing tube 406 is connected to the air pipe 401 and each conduit for coating transportation through quick-release joints.

[0069] The usage method of the above spraying device is as follows:

[0070] Insulating paint A and paint B are respectively added into the first container 302 and the second container 303 for placing the paint. The power switch of the spraying device is turned on, and the pneumatic mechanism, the electric mechanism, and the material pushing mechanism start to work. The material pushing mechanism drives the push rod 301 to extrude, and presses out the paint in the first container 302 and the second container 303 at a predetermined speed, and reaches the mixing pipe 406 through the first conduit 402 and the second conduit 403 for mixing. At the same time, the pneumatic mechanism generates high-pressure gas, which reaches the nozzle 407 through the air pipe 401, atomizes and sprays the mixed material, sprays it on the surface of the object, and quickly solidifies and forms on the surface of the object to form an insulating layer with a certain thickness.

[0071] Embodiment 2

[0072] Based on Embodiment 1, this embodiment provides a spraying method for a portable spraying device for insulating spraying of power transmission and distribution lines described in Embodiment 1, including the following steps:

[0073] Step 1: According to the relative positional relationship between the position to be sprayed and the insulating operating rod 400, adjust the angles of the direction adjusting device 500 and the insulating operating rod 400 so that the nozzle 407 faces the position to be sprayed;

[0074] Step 2: Start the pneumatic mechanism, the electric mechanism, and the material pushing mechanism to work, and push the respective paints into the respective conduits;

[0075] Step 3: The paints in the respective conduits are introduced into the mixing pipe 406, and the paints entering the mixing pipe 406 push the spiral-shaped spiral rod to rotate to achieve mixing;

[0076] Step 4: The mixed paint is sprayed out at the nozzle 407 based on the atomization effect of the compressed gas and sprayed on the position to be sprayed;

[0077] In Step 1, the direction adjusting device is adjusted to rotate in a plane in the same axial direction as the insulating operating rod 400 to adjust the direction of the nozzle 407, that is, rotate around the bolt A503; by rotating the insulating operating rod 400, it can be rotated in a plane in the same radial direction as the insulating operating rod 400 to adjust the direction of the nozzle 407;

[0078] Furthermore, by adjusting the acting force of the material pushing mechanism on each container for containing the paint, the discharging speed is adjusted, thereby adjusting the proportion of the mixed paint;

[0079] Preferably, in this embodiment, the separately provided paints include paint A and paint B, and after the paint A and the paint B are mixed and react, the viscosity is increased and the solidification time is shortened;

[0080] Among them, paint A can be a paint containing polymer nano materials; paint B is a paint containing a curing agent;

[0081] Optionally, the mass ratio of Coating A to Coating B can be 0.8 - 1.2, and the preferred mass ratio is 1:1;

[0082] In this embodiment, different coatings are transported through independent conduits and mixed at the end of the spraying device, effectively avoiding premature reactions of materials in the conduits. Thus, special coatings that can increase the viscosity or shorten the setting time after chemical reactions can be used, enhancing the effect of the sprayed film formation.

[0083] The above are only the preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

[0084] Although the specific implementation manners of the present disclosure have been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that based on the technical solutions of the present disclosure, various modifications or deformations that can be made without creative efforts by those skilled in the art are still within the protection scope of the present disclosure.

Claims

1. A portable spraying device for insulating spraying of power transmission and distribution lines, characterized in that: It includes a main box body, a plurality of insulating paint containers arranged on the main box body, an insulating operating rod and a direction adjustment device; Each insulating paint container is connected to an independent conduit. The conduit penetrates through the insulating operating rod, and the end of the conduit extending out of the insulating operating rod is connected to a mixing tube, and a nozzle is arranged on the mixing tube; The end of the insulating operating rod is connected to the mixing tube through a direction adjustment device. The direction adjustment device includes at least two rotatably connected connecting rods, and the direction adjustment is realized through the rotatable connection between the connecting rods.

2. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 1, characterized in that: A pushing mechanism is arranged on the insulating paint container. The pushing mechanism includes a hollow push rod. One end of the push rod is connected to the air vent on the upper end surface of the insulating paint container, and the other end of the push rod is connected to the compressed gas output end of the pneumatic mechanism.

3. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 1, characterized in that: A pushing mechanism is arranged on the insulating paint container. The pushing mechanism includes a push rod and a piston head; the push rod is connected to a pushing motor to drive the push rod to move; a piston head is arranged at the end of the push rod to compress the paint in the insulating paint container through the piston head.

4. A portable spraying device for insulating spraying of power transmission and distribution lines according to claim 1, characterized in that: The direction adjustment device includes a first connecting rod and a second connecting rod; The second connecting rod includes two relatively arranged strip plates. The two strip plates form a clamping structure with a gap. One end of the first connecting rod is placed in the gap in the middle of one end of the clamping structure, and one end of the first connecting rod is rotatably connected. The other end of the clamping structure clamps the mixing tube; the first connecting rod is fixed at the end of the insulating operating rod.

5. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 4, wherein: The first connecting rod and the second connecting rod are rotatably connected through bolt A.

6. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 4, characterized in that: The other end of the clamping structure formed by the second connecting rod is fixed through a fastening bolt. The middle gap of the clamping mechanism is adjusted through the fastening bolt, and the mixing tube is placed in the gap between the two strip plates to realize the clamping of the mixing tube.

7. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 4, characterized in that: For the connection between the connecting rods of the direction adjustment device, a gear-rack mechanism is adopted, which includes a gear driving device, a meshing gear assembly and a rack assembly. The rack assembly is connected to the mixing tube through the second connecting rod; the gear assembly is used to adjust the rotational motion of the gear driving device, and the rack assembly is used to convert the rotational motion into linear motion to drive the nozzle to adjust the pitch angle or the horizontal angle.

8. The portable spraying device for insulating spraying of power transmission and distribution lines according to claim 1, characterized in that: At the container outlet of the insulating paint container, a heating component is arranged; the heating component adopts a strip-shaped electric heating structure and is wound around the outside of the conduit from the container outlet of the insulating paint container to the conduit; It also includes a pneumatic device, which can be arranged in the main box body and is used to generate compressed gas and transmit it to the nozzle on the mixing tube through an air pipe.

9. A spraying method for a portable spraying device for insulating spraying of power transmission and distribution lines according to any one of claims 1-8, characterized in that, It includes the following steps: According to the relative position relationship between the position to be sprayed and the insulating operating rod, adjust the direction adjustment device and the angle of the insulating operating rod so that the nozzle faces the position to be sprayed; Start the pneumatic mechanism, the electric mechanism and the pushing mechanism to work, and push each paint into each conduit respectively; The paints in each conduit enter the mixing tube, and the paint entering the mixing tube pushes the spiral-shaped spiral rod to rotate to realize mixing; The mixed paint is sprayed out at the nozzle based on the atomizing action of the compressed gas and sprayed on the position to be sprayed.

10. The spraying method according to claim 1, characterized in that: Adjust the direction adjustment device to realize rotation in the plane in the same direction as the axial direction of the insulating operating rod to adjust the direction of the nozzle; rotate the insulating operating rod to rotate in the plane in the same direction as the radial direction of the insulating operating rod to adjust the direction of the nozzle.

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