An anti-corrosion spraying device for the inner wall of a pipeline

Abstract

The utility model relates to the technical field of pipeline anti-corrosion, and discloses an anti-corrosion spraying device for the inner wall of a pipeline, which comprises a bottom plate. A first inner support mechanism is fixedly connected to the top end of the bottom plate. The first inner support mechanism comprises a fixing plate which is fixedly connected to the top end of the bottom plate. One end of the fixing plate is fixedly connected with a first air cylinder. A first telescopic rod is slidably connected to the inner cavity of the first air cylinder. One end of the first telescopic rod is fixedly connected with a driving column. A first connecting shaft is rotatably connected to the outer side of the driving column. A first connecting plate is rotatably connected to the outer side of the first connecting shaft. An inner support plate is hinged to the outer side of the first connecting plate. A second connecting plate is hinged to one side of the inner support plate. A second connecting shaft is rotatably connected to the end of the second connecting plate far away from the inner support plate. The first inner support mechanism can adjust the opening amplitude of the inner support plate according to the inner diameter of the pipeline, so that the device is firmly supported on the inner wall of the pipeline, ensuring the stability of the device during the spraying process and avoiding uneven spraying caused by shaking.

Description

Technical Field

[0001] This utility model relates to the field of pipeline corrosion protection technology, specifically to a pipeline inner wall anti-corrosion spraying device. Background Technology

[0002] Cement pipes, also known as cement pressure pipes or reinforced concrete pipes, are used as underground drainage pipes in urban construction, for sewage discharge, flood control and drainage, as well as water supply pipes in some special factories and mines, and farmland wells. They are generally classified as: plain-end reinforced concrete cement pipes, flexible tongue-and-groove reinforced concrete cement pipes, socket-and-spipe reinforced concrete cement pipes, F-type steel socket cement pipes, plain-end collar-joint cement pipes, and tongue-and-groove cement pipes, etc. However, the application of pipelines requires adaptation to diverse inner diameters and specifications according to different working conditions. For pipes of different inner diameters and specifications, existing spraying equipment lacks an adaptive and stable fixing mechanism, often resulting in positioning deviations during the spraying operation.

[0003] For example, CN220738140U discloses a cement pipe inner wall anti-corrosion spraying device, including a base. The upper surface of the base has two parallel tracks, and two movable platforms are positioned above the tracks. Fixed supports are mounted opposite each other above the movable platforms. The outer sides of the movable platforms are movably connected to hydraulic cylinders mounted on their outer ends. A motor is located above the base and on one side of the tracks. The motor is connected to a slider fixed below the movable platforms via a screw. A column for installing a feed pipe is located above the base and on the other side of the tracks. One end of the feed pipe is connected to a spraying pump, and the other end is movably connected to a spray head. This invention features a rotatable spray head, enabling 360-degree rotational spraying of the cement pipe's inner wall. The two movable platforms can move synchronously under the drive of the screw, thus clamping and moving the cement pipe to achieve spraying of the pipe's inner wall at different locations.

[0004] In actual engineering construction scenarios, the application of pipelines needs to be adapted to various inner diameters and specifications according to different working conditions. However, when performing internal anti-corrosion spraying on pipelines of various diameters, the structural design of existing spraying equipment is difficult to accurately match the pipeline cavity of different inner diameters, and it lacks an adaptive and stable fixing mechanism. This often leads to problems such as positioning deviation and insufficient spraying uniformity during the spraying operation, which greatly increases the construction complexity and operation difficulty. Therefore, those skilled in the art provide a pipeline internal anti-corrosion spraying device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe inner wall anti-corrosion spraying device to solve the problem that in the existing technology, the application of pipes needs to be adapted to different working conditions and various inner diameters and specifications. When facing pipes with different inner diameters and specifications, the existing spraying device lacks an adaptive and stable fixing mechanism, which often causes positioning deviation during the spraying operation.

[0006] This utility model provides the following technical solution: a pipe inner wall anti-corrosion spraying device, including a base plate, a first inner support mechanism fixedly connected to the top of the base plate, the first inner support mechanism including a fixed plate, the fixed plate fixedly connected to the top of the base plate, a first cylinder fixedly connected to one end of the fixed plate, a first telescopic rod slidably connected to the inner cavity of the first cylinder, an active column fixedly connected to one end of the first telescopic rod, a first connecting shaft rotatably connected to the outer side of the active column, a first connecting plate rotatably connected to the outer side of the first connecting shaft, an inner support plate hinged to the outer side of the first connecting plate, a second connecting plate hinged to one side of the inner support plate, a second connecting shaft rotatably connected to the end of the second connecting plate away from the inner support plate, the second connecting shaft rotatably connected to the outer side of the first cylinder, and the inner support plate rotatably connected to the first cylinder through the second connecting plate and the second connecting shaft.

[0007] As a preferred embodiment of the above technical solution, an adjustment mechanism is fixedly connected to the top of the base plate. The adjustment mechanism includes an adjustment frame, one end of which is fixedly connected to a first motor. A screw is threadedly connected to the inner cavity of the adjustment frame, and the screw is electrically connected to the first motor through the adjustment frame.

[0008] As a preferred embodiment of the above technical solution, the inner cavity of the adjustment frame is fixedly connected to a movable shaft, and two sets of movable shafts are symmetrically arranged. A movable plate is slidably connected to the outer side of the two sets of symmetrically arranged movable shafts, and the movable plate is threadedly connected to the outer side of the screw.

[0009] As a preferred embodiment of the above technical solution, the upper end of the movable plate is fixedly connected to a second inner support mechanism, which includes components with the same function and connection relationship as the first inner support mechanism.

[0010] As a preferred embodiment of the above technical solution, a spraying mechanism is fixedly connected to one end of the active column. The spraying mechanism includes a fixed column, which is fixedly connected to one end of the active column. A second cylinder is fixedly connected to one end of the fixed column, and a second telescopic rod is slidably connected to the inner cavity of the second cylinder.

[0011] As a preferred embodiment of the above technical solution, a second motor is fixedly connected to one end of the second telescopic rod, a storage bin is rotatably connected to one end of the second motor, the storage bin and the second motor are electrically connected, a sprayer is fixedly connected to one end of the storage bin, and several sets of sprayers are symmetrically arranged.

[0012] As a preferred embodiment of the above technical solution, the inner cavity of the base plate is provided with a drainage groove, which is composed of several rectangular grooves and is located directly below the sprayer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model is equipped with a first internal support mechanism. The fixing plate of the first internal support mechanism is fixed to the top of the base plate. When the first telescopic rod in the first cylinder extends or retracts, it drives the active column to move. The active column is hinged to the internal support plate through the first connecting shaft and the first connecting plate. The internal support plate is rotatably connected to the first cylinder through the second connecting plate and the second connecting shaft, forming a linkage structure. This allows the internal support plate to be stably extended or retracted. The first internal support mechanism can adjust the opening range of the internal support plate according to the inner diameter of the pipe, so that the device is firmly supported on the inner wall of the pipe, ensuring the stability of the device during the spraying process and avoiding uneven spraying due to shaking.

[0015] Based on the above-mentioned beneficial effects, this utility model is provided with an adjustment mechanism. In the adjustment mechanism, the first motor drives the screw to rotate, and the movable plate, which is threadedly connected to the screw, moves axially under the guidance of the movable shaft, thereby adjusting the position of the movable plate. This causes the second inner support mechanism to change its lateral position under the action of the adjustment mechanism, enabling the device to adapt to pipes of different lengths or installation positions, thus enhancing its versatility and flexibility.

[0016] Based on the above-mentioned beneficial effects, this utility model is provided with a spraying mechanism. In the spraying mechanism, a fixed column at one end of the active column is connected to a second cylinder. The second telescopic rod drives the second motor, storage bin, and sprayer at the rear end to extend and retract. The second motor drives the storage bin to rotate, causing the sprayer to move in a circular motion around the inner wall of the pipe. The spraying mechanism adjusts the distance between the sprayer and the inner wall of the pipe to ensure that it is in the optimal spraying position, while realizing all-round spraying of the inner wall of the pipe, avoiding spraying dead corners, improving the spraying coverage area and speed, and improving work efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a pipe inner wall anti-corrosion spraying device;

[0018] Figure 2 A schematic diagram of the first cylinder connection of the first inner support mechanism of a pipe inner wall anti-corrosion spraying device;

[0019] Figure 3 A pipe inner wall anti-corrosion spraying device Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the adjustment mechanism and adjustment frame connection of an anti-corrosion spraying device for the inner wall of a pipeline.

[0021] In the diagram: 1. Base plate; 2. First internal support mechanism; 21. Fixed plate; 22. First cylinder; 23. First telescopic rod; 24. Active column; 25. First connecting shaft; 26. First connecting plate; 27. Internal support plate; 28. Second connecting plate; 29. ​​Second connecting shaft; 210. Second internal support mechanism; 3. Adjustment mechanism; 31. Adjustment frame; 32. First motor; 33. Screw; 34. Moving shaft; 35. Moving plate; 4. Spraying mechanism; 41. Fixed column; 42. Second cylinder; 43. Second telescopic rod; 44. Second motor; 45. Material storage bin; 46. Sprayer; 5. Slot. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figures 1-3 As shown, this utility model provides a technical solution: a pipe inner wall anti-corrosion spraying device, including a base plate 1, a first inner support mechanism 2 fixedly connected to the top of the base plate 1, the first inner support mechanism 2 including a fixing plate 21, the fixing plate 21 fixedly connected to the top of the base plate 1, a first cylinder 22 fixedly connected to one end of the fixing plate 21, a first telescopic rod 23 slidably connected to the inner cavity of the first cylinder 22, an active column 24 fixedly connected to one end of the first telescopic rod 23, a first connecting shaft 25 rotatably connected to the outer side of the active column 24, a first connecting plate 26 rotatably connected to the outer side of the first connecting shaft 25, an inner support plate 27 hinged to the outer side of the first connecting plate 26, a second connecting plate 28 hinged to one side of the inner support plate 27, a second connecting shaft 29 rotatably connected to the end of the second connecting plate 28 away from the inner support plate 27, the second connecting shaft 29 rotatably connected to the outer side of the first cylinder 22, and the inner support plate 27 rotatably connected to the first cylinder 22 through the second connecting plate 28 and the second connecting shaft 29.

[0024] The first cylinder 22 is fixed to the top of the base plate 1 by the fixing plate 21. When the first telescopic rod 23 inside the first cylinder 22 extends or retracts, it can drive the active column 24 to move. The active column 24 is hinged to the inner support plate 27 through the first connecting shaft 25 and the first connecting plate 26. At the same time, the inner support plate 27 is rotatably connected to the first cylinder 22 through the second connecting plate 28 and the second connecting shaft 29. This linkage structure design can stably open or retract the inner support plate 27, so that the first inner support mechanism 2 can adjust the opening range of the inner support plate 27 according to the inner diameter of the pipe, so that the device is firmly supported on the inner wall of the pipe, ensuring the stability of the device during the spraying process and avoiding uneven spraying due to shaking.

[0025] As one implementation method in this embodiment, please refer to Figures 1-4As shown, an adjustment mechanism 3 is fixedly connected to the top of the base plate 1. The adjustment mechanism 3 includes an adjustment frame 31. A first motor 32 is fixedly connected to one end of the adjustment frame 31. A screw 33 is threadedly connected to the inner cavity of the adjustment frame 31. The screw 33 is electrically connected to the first motor 32 through the adjustment frame 31.

[0026] When the first motor 32 drives the screw 33 to rotate, the movable plate 35, which is threadedly connected to the screw 33, will move axially under the guidance of the movable shaft 34. By adjusting the position of the movable plate 35, the lateral position of the second inner support mechanism 210 can be changed, so that the device can adapt to pipes of different lengths or installation positions, thereby enhancing the versatility and flexibility of the device and meeting the requirements of anti-corrosion spraying of pipe inner walls under different working conditions.

[0027] As one implementation method in this embodiment, please refer to Figure 4 As shown, a movable shaft 34 is fixedly connected to the inner cavity of the adjusting frame 31. Two sets of movable shafts 34 are symmetrically arranged. Movable plates 35 are slidably connected to the outer sides of the two sets of symmetrically arranged movable shafts 34. The movable plates 35 are threadedly connected to the outer side of the screw 33.

[0028] Two sets of moving shafts 34 are symmetrically arranged inside the adjusting frame 31. The moving plate 35 is slidably connected to the outside of the moving shaft 34 and threadedly connected to the screw 33. The advantage is that the moving shaft 34 provides a stable guide for the moving plate 35, preventing the moving plate 35 from shifting or shaking during movement, ensuring the positional accuracy of the second inner support mechanism 210 when it moves with the moving plate 35, thereby ensuring the stability and reliability of the entire device during the adjustment process.

[0029] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the upper end of the movable plate 35 is fixedly connected to a second inner support mechanism 210, which contains components with the same function and connection relationship as the first inner support mechanism 2.

[0030] The second internal support mechanism 210 has the same structure and function as the first internal support mechanism 2. It is fixed to the upper end of the movable plate 35. Through the cooperation of the two sets of internal support mechanisms, the inner wall of the pipe can be supported from different positions, which further improves the support stability of the device in the pipe. It is especially suitable for long or large diameter pipes, and avoids displacement of the device due to uneven force during the spraying process, thus ensuring the smooth progress of the spraying operation.

[0031] As one implementation method in this embodiment, please refer to Figures 2-4 As shown, a spraying mechanism 4 is fixedly connected to one end of the active column 24. The spraying mechanism 4 includes a fixed column 41, which is fixedly connected to one end of the active column 24. A second cylinder 42 is fixedly connected to one end of the fixed column 41. A second telescopic rod 43 is slidably connected to the inner cavity of the second cylinder 42.

[0032] The fixed column 41 at one end of the active column 24 is connected to the second cylinder 42. The second telescopic rod 43 can drive the second motor 44, the storage bin 45 and the sprayer 46 at the rear end to extend and retract. By adjusting the extension and retraction of the second cylinder 42, the distance between the sprayer 46 and the inner wall of the pipe can be controlled to ensure that the sprayer 46 is in the best spraying position, so that the anti-corrosion material is evenly sprayed on the inner wall of the pipe, thereby improving the spraying quality and efficiency.

[0033] As one implementation method in this embodiment, please refer to Figure 4 As shown, a second motor 44 is fixedly connected to one end of the second telescopic rod 43, and a storage bin 45 is rotatably connected to one end of the second motor 44. The storage bin 45 and the second motor 44 are electrically connected. A sprayer 46 is fixedly connected to one end of the storage bin 45, and several sets of sprayers 46 are symmetrically arranged.

[0034] The second motor 44 drives the storage bin 45 to rotate. Several sets of sprayers 46 are symmetrically distributed at one end of the storage bin 45. When the storage bin 45 is driven to rotate by the second motor 44, the sprayers 46 can move in a circle around the inner wall of the pipe to achieve all-round spraying of the inner wall of the pipe, avoiding spraying dead corners. At the same time, the several sets of sprayers 46 can increase the spraying coverage area, speed up the spraying speed, and improve work efficiency.

[0035] As one implementation method in this embodiment, please refer to Figure 2 As shown, the inner cavity of the base plate 1 is provided with a groove 5, which is composed of several rectangular grooves and is located directly below the sprayer 46.

[0036] The groove 5 inside the base plate 1 is composed of several rectangular grooves and is located directly below the sprayer 46. During the spraying process, if any excess anti-corrosion material drips, it can be collected through the groove 5 to prevent the material from accumulating on the base plate 1 and causing pollution or waste. At the same time, it facilitates subsequent cleaning, keeps the working environment clean, and is also beneficial to the maintenance and upkeep of the device.

[0037] Working principle: The fixing plate 21 of the first inner support mechanism 2 is fixed to the top of the base plate 1. When the first telescopic rod 23 in the first cylinder 22 extends or retracts, it drives the active column 24 to move. The active column 24 is hinged to the inner support plate 27 through the first connecting shaft 25 and the first connecting plate 26. The inner support plate 27 is rotatably connected to the first cylinder 22 through the second connecting plate 28 and the second connecting shaft 29, forming a linkage structure. This allows the inner support plate 27 to be stably extended or retracted. The first inner support mechanism 2 can adjust the opening range of the inner support plate 27 according to the inner diameter of the pipe, so that the device is firmly supported on the inner wall of the pipe, ensuring the stability of the device during the spraying process and avoiding uneven spraying due to shaking.

[0038] In the adjustment mechanism 3, the first motor 32 drives the screw 33 to rotate, and the movable plate 35, which is threadedly connected to the screw 33, moves axially under the guidance of the movable shaft 34, thereby adjusting the position of the movable plate 35. This causes the second inner support mechanism 210 to change its lateral position under the action of the adjustment mechanism 3, so that the device can adapt to pipes of different lengths or installation positions, enhancing its versatility and flexibility.

[0039] In the spraying mechanism 4, the fixed column 41 at one end of the active column 24 is connected to the second cylinder 42. The second telescopic rod 43 drives the second motor 44, the storage bin 45 and the sprayer 46 at the rear end to extend and retract. The second motor 44 drives the storage bin 45 to rotate, so that the sprayer 46 moves in a circle around the inner wall of the pipe. The spraying mechanism 4 ensures that the sprayer 46 is in the best spraying position by adjusting the distance between the sprayer 46 and the inner wall of the pipe. At the same time, it achieves all-round spraying of the inner wall of the pipe, avoids spraying dead corners, improves the spraying coverage area and speed, and improves work efficiency.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A device for the internal wall corrosion protection of pipes, characterized in that: Includes a base plate (1), the top of which is fixedly connected to a first internal support mechanism (2). The first internal support mechanism (2) includes a fixing plate (21), which is fixedly connected to the top of the base plate (1). One end of the fixing plate (21) is fixedly connected to a first cylinder (22). The inner cavity of the first cylinder (22) is slidably connected to a first telescopic rod (23). One end of the first telescopic rod (23) is fixedly connected to an active column (24). The outer side of the active column (24) is rotatably connected to a first connecting shaft (25). A first connecting plate (26) is rotatably connected to the outer side of the first connecting shaft (25). An inner support plate (27) is hinged to the outer side of the first connecting plate (26). A second connecting plate (28) is hinged to one side of the inner support plate (27). A second connecting shaft (29) is rotatably connected to the end of the second connecting plate (28) away from the inner support plate (27). The second connecting shaft (29) is rotatably connected to the outer side of the first cylinder (22). The inner support plate (27) is rotatably connected to the first cylinder (22) through the second connecting plate (28) and the second connecting shaft (29).

2. A pipeline inner wall anticorrosion spraying device according to claim 1, characterized in that: An adjustment mechanism (3) is fixedly connected to the top of the base plate (1). The adjustment mechanism (3) includes an adjustment frame (31). A first motor (32) is fixedly connected to one end of the adjustment frame (31). A screw (33) is threadedly connected to the inner cavity of the adjustment frame (31). The screw (33) is electrically connected to the first motor (32) through the adjustment frame (31).

3. A device for the internal wall anti-corrosion spraying of pipes according to claim 2, characterized in that: The inner cavity of the adjustment frame (31) is fixedly connected to a movable shaft (34). Two sets of movable shafts (34) are symmetrically arranged. A movable plate (35) is slidably connected to the outer side of the two sets of symmetrically arranged movable shafts (34). The movable plate (35) is threadedly connected to the outer side of the screw (33).

4. A pipeline internal wall anticorrosive spraying device according to claim 3, characterized in that: The upper end of the movable plate (35) is fixedly connected to a second inner support mechanism (210), which contains components with the same function and connection relationship as the first inner support mechanism (2).

5. The apparatus for anti-corrosion spraying of the inner wall of a pipeline according to claim 1, characterized in that: One end of the active column (24) is fixedly connected to a spraying mechanism (4). The spraying mechanism (4) includes a fixed column (41). The fixed column (41) is fixedly connected to one end of the active column (24). One end of the fixed column (41) is fixedly connected to a second cylinder (42). The inner cavity of the second cylinder (42) is slidably connected to a second telescopic rod (43).

6. A pipeline interior wall anticorrosive spraying device according to claim 5, characterized in that: One end of the second telescopic rod (43) is fixedly connected to a second motor (44), and one end of the second motor (44) is rotatably connected to a storage bin (45). The storage bin (45) and the second motor (44) are electrically connected. One end of the storage bin (45) is fixedly connected to a sprayer (46), and several sets of sprayers (46) are symmetrically arranged.

7. The pipe inner wall anti-corrosion spraying device according to claim 2, characterized in that: The inner cavity of the base plate (1) is provided with a trough (5), which is composed of several rectangular grooves and is located directly below the sprayer (46).

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