An anticorrosive water conservancy metal pipeline anticorrosive coating spraying device

Abstract

The utility model discloses an anticorrosive water conservancy metal pipeline anticorrosive coating spraying device, including base, one end fixedly connected with expansion subassembly of base, and expansion subassembly includes fixed column, and one end fixedly connected in base of fixed column, and one end fixedly connected with rotating mechanism of fixed column away from base, and rotating mechanism includes motor, and motor fixedly connected in one end of fixed column away from base, and one end rotationally connected with rotating column of motor away from fixed column, and one end of rotating column is hinged with connecting plate, and the inner chamber rotationally connected with connecting shaft of connecting plate, and the outside slidingly connected with adjusting column of connecting shaft, the utility model sets up rotating mechanism, and drives rotating column rotation through motor, and drives connecting plate and adjusting column synchronous rotation, can realize the circumferential movement of spraying device outside pipeline, and the angle adjustable of storage bin and sprayer is driven through rotating mechanism, and the convenience is improved to the anticorrosive spraying of metal pipeline of different position.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a corrosion-resistant coating spraying device for water conservancy metal pipelines. Background Technology

[0002] In water conservancy projects, metal pipelines are subject to long-term water flow erosion, water quality corrosion and external environmental influences, which can easily lead to problems such as internal wall corrosion and perforation, resulting in pipeline leakage or shortened service life. However, when spraying anti-corrosion coatings, manual repeated spraying of the pipeline is often required. During this process, uneven coating thickness is very likely to occur, which in turn reduces the anti-corrosion performance of the pipeline. For example, CN119747142B discloses a spraying device for anti-corrosion coating on steel structure surfaces, including a mounting rod and a mounting base fixed at one end of the mounting rod. It also includes a support frame rotatably connected to one end of the mounting base, a rotating shaft rotatably connected to the end of the support frame, a mounting bracket fixed on the rotating shaft, and a mounting tube rotatably connected along the length of the mounting bracket. Multiple nozzles are evenly installed on the mounting tube. A retraction mechanism is provided on the mounting rod. The retraction mechanism drives the support frame and mounting bracket to rotate, causing the mounting base, support frame, and mounting bracket to unfold concavely or fold in a straight line. When spraying anti-corrosion coating on the bottom of a low-lying steel structure, the spraying personnel do not need to bend over; when spraying anti-corrosion coating on the top of a high-lying steel structure, the operator does not need to use climbing tools to work at height. However, there are shortcomings: when spraying the anti-corrosion coating, it is often necessary to manually spray the pipeline repeatedly. During this process, the coating thickness is very likely to be uneven, which will reduce the anti-corrosion performance of the pipeline. Utility Model Content

[0003] The purpose of this utility model is to provide a corrosion-resistant coating spraying device for hydraulic metal pipelines, in order to solve the problem mentioned in the background art that when spraying anti-corrosion coatings, it is often necessary to manually spray the pipeline repeatedly. During this process, uneven coating thickness is very likely to occur, which in turn reduces the anti-corrosion performance of the pipeline.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a corrosion-resistant coating spraying device for water conservancy metal pipelines, comprising a base, an expansion assembly fixedly connected to one end of the base, the expansion assembly including a fixed column, the fixed column being fixedly connected to one end of the base, a rotating mechanism being fixedly connected to the end of the fixed column away from the base, the rotating mechanism including a motor, the motor being fixedly connected to the end of the fixed column away from the base, a rotating column being rotatably connected to the end of the motor away from the fixed column, a connecting plate being hinged to one end of the rotating column, a connecting shaft being rotatably connected to the inner cavity of the connecting plate, and an adjusting column being slidably connected to the outer side of the connecting shaft, the adjusting column being slidably connected to the connecting shaft and the connecting plate.

[0005] Furthermore, a fixing plate is fixedly connected to the outer side of the fixing column, a cylinder is fixedly connected to the top of the fixing plate, and a piston rod is slidably connected to the inner cavity of the cylinder.

[0006] Furthermore, four sets of piston rods are symmetrically arranged, and the shape of the top end of the piston rod is adapted to and completely consistent with the shape of the inner wall of the pipe.

[0007] Furthermore, a handle is fixedly connected to the outer side of the adjusting column, a connecting column is fixedly connected to one end of the adjusting column, a screw is fixedly connected to the end of the connecting column away from the adjusting column, and a limit post is fixedly connected to the end of the screw away from the connecting column.

[0008] Furthermore, a movable post is threadedly connected to the outer side of the screw, and a connecting post two is fixedly connected to one end of the movable post.

[0009] Furthermore, a storage bin is fixedly connected to the end of the connecting column two away from the moving column, and a sprayer is fixedly connected to the bottom end of the storage bin.

[0010] This utility model has the following beneficial effects: I. This utility model is equipped with a rotating mechanism. The rotating column is driven by a motor to rotate, which in turn drives the connecting plate and the adjusting column to rotate synchronously. This allows the spraying device to move circumferentially outside the pipe, ensuring that the anti-corrosion coating is evenly applied to the outer surface of the pipe, improving spraying efficiency and coating consistency. The handle allows for easy manual control of the position of the adjusting column. The fixed connection between the connecting column one and the screw allows for precise adjustment of the axial position of the storage bin and the sprayer. The limiting column acts as a travel limit to prevent excessive movement of the screw and structural damage. The user can then use the threaded transmission of the screw and the moving column, and through the connecting column two, drive the storage bin and the sprayer to rotate along the screw to adjust the spraying position on the outer surface of the pipe. Finally, the sprayer evenly sprays the coating. The connecting column two ensures a rigid connection between the storage bin and the moving column, ensuring a stable coating supply during the spraying process and preventing uneven spraying or leakage due to shaking. The rotating mechanism allows for adjustable angles of the storage bin and the sprayer, facilitating anti-corrosion spraying of metal pipes at different locations and improving convenience. Second, based on the above-mentioned beneficial effects, an expansion component is also provided. First, the cylinder drives the piston rod to extend and retract. Through the synchronous action of four symmetrically arranged piston rods, the radial expansion amplitude of the expansion component can be precisely controlled, making the device adaptable to pipes with different inner diameters, improving the equipment's versatility and installation stability. Furthermore, the symmetrically distributed piston rods can provide uniform radial support force. The design of the top end conforming to the shape of the inner wall of the pipe allows the piston rod to fit tightly against the inner wall of the pipe, enhancing the device's fixation effect inside the pipe, preventing the device from shaking during the spraying process, and ensuring uniform coating thickness and no missed spraying. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the connection of the fixing column of the expansion component of this utility model; Figure 3 This is a schematic diagram of the connection of the adjusting column of the rotating mechanism of this utility model.

[0013] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 2. Expansion assembly; 21. Fixed column; 22. Fixed plate; 23. Cylinder; 24. Piston rod; 3. Rotating mechanism; 31. Motor; 32. Rotating column; 33. Connecting plate; 34. Connecting shaft; 35. Adjusting column; 36. Handle; 37. Connecting column one; 38. Screw; 39. Limiting column; 310. Moving column; 311. Connecting column two; 312. Storage bin; 313. Sprayer. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0016] Please see Figure 1-3 As shown, this utility model is a corrosion-resistant coating spraying device for water conservancy metal pipelines, including a base 1. An expansion component 2 is fixedly connected to one end of the base 1. The expansion component 2 includes a fixed column 21, which is fixedly connected to one end of the base 1. A rotating mechanism 3 is fixedly connected to the end of the fixed column 21 away from the base 1. The rotating mechanism 3 includes a motor 31, which is fixedly connected to the end of the fixed column 21 away from the base 1. A rotating column 32 is rotatably connected to the end of the motor 31 away from the fixed column 21. A connecting plate 33 is hinged to one end of the rotating column 32. A connecting shaft 34 is rotatably connected to the inner cavity of the connecting plate 33. An adjusting column 35 is slidably connected to the outer side of the connecting shaft 34. The adjusting column 35 is slidably connected to the connecting plate 33 through the connecting shaft 34. Specifically, motor 31 is a servo motor 31, which has a high-precision spraying effect and can achieve precise speed control and positioning. First, the controller sends control signals (such as pulse signals or analog voltage signals) to the servo motor 31 driver. The instructions include parameters such as target position, speed or torque. Then, after receiving the control signals, the driver converts the DC power to three-phase AC power through internal circuits (such as inverters) to drive the stator windings of motor 31 to generate a rotating magnetic field. Finally, the rotor has embedded permanent magnets. The rotating magnetic field of the stator interacts with the permanent magnets of the rotor, causing the rotor to rotate synchronously. The speed and position of the rotating column 32 are precisely controlled by the encoder feedback to avoid uneven coating thickness. For example, by driving the rotating column 32 to rotate via the motor 31, the connecting plate 33 and the adjusting column 35 can be rotated synchronously, which can realize the circumferential movement of the spraying device outside the pipeline, ensuring that the anti-corrosion coating is evenly sprayed to cover the outer surface of the pipeline, and improving the spraying efficiency and coating consistency.

[0017] A handle 36 is fixedly connected to the outside of the adjusting column 35. A connecting column 37 is fixedly connected to one end of the adjusting column 35. A screw 38 is fixedly connected to the end of the connecting column 37 away from the adjusting column 35. A limit post 39 is fixedly connected to the end of the screw 38 away from the connecting column 37. For example, the handle 36 facilitates manual operation of the position of the adjusting column 35. Through the fixed connection between the connecting column 37 and the screw 38, the axial position of the storage bin 312 and the sprayer 313 can be precisely adjusted. The limiting column 39 serves to limit the stroke and prevent the screw 38 from moving excessively and causing structural damage.

[0018] The outer side of the screw 38 is threaded with a movable post 310, and one end of the movable post 310 is fixedly connected to a connecting post 311. For example, by using the threaded drive of the screw 38 and the moving column 310, the storage bin 312 and the sprayer 313 can be rotated along the screw 38 by the connecting column 311, thereby adjusting the spraying position on the outer surface of the pipe.

[0019] A storage bin 312 is fixedly connected to the end of the connecting column 2 311 away from the moving column 310, and a sprayer 313 is fixedly connected to the bottom end of the storage bin 312. Specifically, the sprayer 313 serves as the paint output terminal, uniformly spraying the anti-corrosion paint conveyed by the storage bin 312 through the internal nozzle. Its working principle is based on pressure atomization: under the action of gravity or external pressure inside the storage bin 312, the paint is split into fine particles when it is sprayed out at high speed through the nozzle, forming a uniform coating that covers the inner wall or outer surface of the pipe. For example, the storage bin 312 is used to store anti-corrosion coating, and the coating is sprayed evenly by the sprayer 313. The connecting column 311 ensures the rigid connection between the storage bin 312 and the moving column 310, so that the coating supply is stable during the spraying process and avoids uneven spraying or leakage caused by shaking.

[0020] Working principle: First, the rotating column 32 is driven to rotate by the motor 31, which in turn drives the connecting plate 33 and the adjusting column 35 to rotate synchronously. This allows the spraying device to move circumferentially outside the pipeline, ensuring that the anti-corrosion coating is evenly applied to the outer surface of the pipeline, improving spraying efficiency and coating consistency. Then, the handle 36 facilitates manual operation of the position of the adjusting column 35. Through the fixed connection between the connecting column 37 and the screw 38, the axial position of the storage bin 312 and the sprayer 313 can be precisely adjusted. The limiting column 39 serves to limit the stroke. To prevent excessive movement of the screw 38 that could damage the structure, the user utilizes the threaded drive between the screw 38 and the moving column 310, and then through the connecting column 311, can drive the storage bin 312 and the sprayer 313 to rotate along the screw 38, adjusting the spraying position on the outer surface of the pipe. Finally, the sprayer 313 sprays the paint evenly. The connecting column 311 ensures a rigid connection between the storage bin 312 and the moving column 310, making the paint supply stable during the spraying process and avoiding uneven spraying or leakage caused by shaking.

[0021] In this step, the angle of the storage bin 312 and the sprayer 313 can be adjusted by the rotating mechanism 3, which facilitates anti-corrosion spraying on metal pipes in different locations and improves convenience.

[0022] Please see Figure 1-2 As shown, this embodiment, based on the above embodiment, further includes: A fixing plate 22 is fixedly connected to the outer side of the fixing column 21, and a cylinder 23 is fixedly connected to the top of the fixing plate 22. A piston rod 24 is slidably connected to the inner cavity of the cylinder 23. Specifically, cylinder 23 adopts a standard cylinder 23 with a radius difference of 100mm. The stroke of a single set of piston rods 24 is ≥100mm. The cylinder diameter is Φ63mm and the stroke is 125mm. Cylinder 23 is supplied with compressed air through an air source to drive the piston rods 24 to extend and retract to control the radial expansion amplitude of the expansion component 2. The four sets of piston rods 24 arranged symmetrically move synchronously, using air pressure to push the piston to generate thrust, so that the top of the piston rod 24 is adapted to and completely consistent with the shape of the inner wall of the pipe, tightly fitting the inner wall of the pipe, realizing the adaptation of the device to pipes with different inner diameters. At the same time, the extension and retraction of the piston rods 24 are controlled by switching air pressure to complete the fixation and disassembly of the device in the pipe, ensuring that the device is stable and does not shake during the spraying process. For example, the cylinder 23 drives the piston rod 24 to extend and retract. By symmetrically arranged four sets of piston rods 24 moving synchronously, the radial expansion amplitude of the expansion assembly 2 can be precisely controlled, so that the device can adapt to pipes with different inner diameters and improve the equipment's versatility and installation stability.

[0023] There are four sets of piston rods 24 symmetrically arranged, and the shape of the top end of the piston rod 24 is adapted to and completely consistent with the shape of the inner wall of the pipe. For example, the symmetrically distributed piston rods 24 can provide uniform radial support force. The design of the top end conforming to the shape of the inner wall of the pipe allows the piston rods 24 to fit tightly against the inner wall of the pipe, enhancing the fixation effect of the device in the pipe, preventing the device from shaking during the spraying process, and ensuring uniform coating thickness and no missed spraying.

[0024] Working principle: First, the cylinder 23 drives the piston rod 24 to extend and retract. Through the synchronous action of the four symmetrically arranged piston rods 24, the radial expansion amplitude of the expansion component 2 can be precisely controlled, making the device adaptable to pipes with different inner diameters, improving the equipment's versatility and installation stability. Furthermore, the symmetrically distributed piston rods 24 can provide uniform radial support force. The design of the top end matching the shape of the inner wall of the pipe allows the piston rod 24 to fit tightly against the inner wall of the pipe, enhancing the device's fixation effect inside the pipe, preventing the device from shaking during the spraying process, and ensuring uniform coating thickness and no missed spraying.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for spraying anti-corrosion coatings on hydraulic metal pipelines, characterized in that, The device includes a base (1), one end of which is fixedly connected to an expansion assembly (2). The expansion assembly (2) includes a fixed column (21), which is fixedly connected to one end of the base (1). The end of the fixed column (21) away from the base (1) is fixedly connected to a rotating mechanism (3). The rotating mechanism (3) includes a motor (31), which is fixedly connected to the end of the fixed column (21) away from the base (1). The end of the motor (31) away from the fixed column (21) is rotatably connected to a rotating column (32). One end of the rotating column (32) is hinged to a connecting plate (33). The inner cavity of the connecting plate (33) is rotatably connected to a connecting shaft (34). The outer side of the connecting shaft (34) is slidably connected to an adjusting column (35). The adjusting column (35) is slidably connected to the connecting shaft (34) and the connecting plate (33).

2. The anti-corrosion coating spraying device for water conservancy metal pipelines according to claim 1, characterized in that: A fixing plate (22) is fixedly connected to the outside of the fixing column (21), and a cylinder (23) is fixedly connected to the top of the fixing plate (22). A piston rod (24) is slidably connected to the inner cavity of the cylinder (23).

3. The anti-corrosion coating spraying device for water conservancy metal pipelines according to claim 2, characterized in that: The piston rod (24) is symmetrically arranged in four sets, and the top shape of the piston rod (24) is adapted to and completely consistent with the shape of the inner wall of the pipe.

4. The anti-corrosion coating spraying device for water conservancy metal pipelines according to claim 1, characterized in that: A handle (36) is fixedly connected to the outside of the adjusting column (35), a connecting column (37) is fixedly connected to one end of the adjusting column (35), a screw (38) is fixedly connected to the end of the connecting column (37) away from the adjusting column (35), and a limit post (39) is fixedly connected to the end of the screw (38) away from the connecting column (37).

5. The anti-corrosion coating spraying device for hydraulic metal pipelines according to claim 4, characterized in that: The outer side of the screw (38) is threaded with a movable column (310), and one end of the movable column (310) is fixedly connected to a connecting column two (311).

6. The anti-corrosion coating spraying device for hydraulic metal pipelines according to claim 5, characterized in that: The end of the connecting column 2 (311) away from the moving column (310) is fixedly connected to a storage bin (312), and the bottom end of the storage bin (312) is fixedly connected to a sprayer (313).

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