Pipeline inner wall anti-corrosion spraying robot

CN224423257UActive Publication Date: 2026-06-30BAOJI TIEJUN CHEM ENG ANTI CORROSION INSTALLATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOJI TIEJUN CHEM ENG ANTI CORROSION INSTALLATION
Filing Date
2025-09-11
Publication Date
2026-06-30

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    Figure CN224423257U_ABST
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Abstract

This utility model discloses a pipeline inner wall anti-corrosion construction spraying robot, belonging to the technical field of pipeline inner wall anti-corrosion construction equipment. Its key technical features include: a construction spraying robot body; a swing drive mechanism installed and connected to the inner front end of the construction spraying robot body; a swing spraying mechanism installed on the front end of the swing drive mechanism; and a spraying liquid supply mechanism installed on the periphery of the swing spraying mechanism and fixed to the swing drive mechanism. The spraying liquid supply mechanism is connected to the anti-corrosion coating supply pipe. The technical advantage is that the pneumatically adjustable moving mechanism abuts against the inner wall of the pipeline, allowing it to move. The air supply adjustment mechanism can supply air to the pneumatically adjustable moving mechanism, thereby adjusting its position to drive movement along the inner wall of the pipeline. Expansion adjustment is achieved through pneumatic air supply, making adjustment more convenient, and the structure is simple and easy to maintain.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipeline internal wall anti-corrosion construction equipment, specifically a pipeline internal wall anti-corrosion construction spraying robot. Background Technology

[0002] Pipeline corrosion protection refers to measures taken to slow down or prevent pipelines from being eroded and deteriorated by the chemical and electrochemical effects of internal and external media or by the metabolic activities of microorganisms. When carrying out anti-corrosion construction on the inner wall of a pipeline, a pipeline inner wall anti-corrosion spraying robot is required.

[0003] Existing Chinese patent CN118371365B, published on October 22, 2024, discloses a self-propelled pipeline inner wall anti-corrosion device. It includes a support base, a first push rod slidably connected to the support base, a fixed shaft fixed to the telescopic end of the first push rod, a rotating sleeve rotatably connected to the fixed shaft, a rotating shell rotatably connected to the rotating sleeve, symmetrically distributed second push rods fixed to the rotating shell, a detection tube slidably connected to the telescopic end of the second push rod, a multi-stage telescopic rod fixed to the detection tube, a spray gun rotatably connected to the telescopic end of the multi-stage telescopic rod, and a fixing assembly provided on the support base.

[0004] However, in actual use, the above-mentioned device has a complex overall structure, making it difficult to repair when damaged, which is inconvenient to use.

[0005] Therefore, we propose a novel pipeline internal wall anti-corrosion spraying robot to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a pipeline inner wall anti-corrosion spraying robot, which solves the problem that the above-mentioned devices have a complex overall structure during driving and walking, making them difficult to repair when damaged, thus making them inconvenient to use.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pipeline inner wall anti-corrosion spraying robot, comprising:

[0010] The body of the construction spraying robot;

[0011] A swing drive mechanism is installed and connected to the inner front end of the construction spraying robot body;

[0012] A oscillating spraying mechanism, which is mounted on the front end of an oscillating drive mechanism;

[0013] A spraying liquid supply mechanism is installed on the periphery of the oscillating spraying mechanism and fixed on the oscillating drive mechanism. The spraying liquid supply mechanism is connected to the anti-corrosion coating supply pipe.

[0014] A pneumatically adjustable moving mechanism is symmetrically fixed to the outer wall of the construction spraying robot body;

[0015] An air supply regulating mechanism is installed and connected to the rear end of the construction spraying robot body and is connected to the pneumatic regulating and moving mechanism.

[0016] Preferably, the construction spraying robot body includes a robot body, which is electrically connected to the control box via a robot power supply.

[0017] Preferably, the swing drive mechanism includes a rotary motor, a screw mounting plate is fixedly connected to the periphery of the rotary motor, a first coupling is fixedly connected to the output shaft end of the rotary motor, a swing spraying mechanism is installed at the front end of the first coupling, and the rotary motor is electrically connected to the robot body through a connecting line.

[0018] Preferably, the oscillating spraying mechanism includes a hollow disc, a perforated spraying ring fixedly connected to the inner circumference of the hollow disc, a cross-shaped gas supply pipe fixedly connected through the middle of the rear end of the hollow disc, an air inlet slot being provided on the protruding part of the cross-shaped gas supply pipe, a spraying liquid supply mechanism being installed on the periphery of the cross-shaped gas supply pipe, and the cross-shaped gas supply pipe being fixedly connected to the first coupling.

[0019] Preferably, the spraying liquid supply mechanism includes a cross-grooved sleeve, the inside of which is provided with a positioning cross-grooved cavity, a positioning arm fixedly connected to the rear end of the cross-grooved sleeve, the positioning arm fixedly connected to a rotary motor, the cross-grooved sleeve being rotatably sleeved on the periphery of the cross-head gas supply pipe through the positioning cross-grooved cavity, and an anti-corrosion coating liquid input pipe being fixedly connected to the outer wall of the cross-grooved sleeve, the anti-corrosion coating liquid input pipe being connected to the anti-corrosion coating liquid supply pipe.

[0020] Preferably, the air supply regulating mechanism includes a heat dissipation shroud, an air pump is installed inside the heat dissipation shroud by screws, a three-way delivery pipe is installed at the front end of the air pump, right-angle delivery pipes passing through the heat dissipation shroud are installed at both ends of the three-way delivery pipe by screws, and a pneumatic regulating moving mechanism is installed at the lower end of the right-angle delivery pipe by screws.

[0021] Preferably, the pneumatic adjustment and movement mechanism includes a hollow arm plate, which is fixedly connected to the robot body. An inflatable airbag is fixedly connected inside the hollow arm plate. An air intake pipe passing through the hollow arm plate is fixedly connected to the upper end of the inflatable airbag. The air intake pipe is installed on a right-angle delivery pipe by screws. A concave arm plate passing through the hollow arm plate is fixedly connected to the outer end of the inflatable airbag. A damping spring is fixedly connected between the concave arm plate and the hollow arm plate. An active walking wheel is rotatably mounted on the inner side of the outer end of the concave arm plate. A drive motor located on the concave arm plate is fixedly connected to the outer end of the active walking wheel. A driven walking wheel is rotatably mounted on the inner side of the active walking wheel located on the concave arm plate.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, this utility model provides a robot for spraying anti-corrosion coating on the inner wall of pipelines, which has the following beneficial effects:

[0024] 1. The pneumatic adjustment and moving mechanism of this utility model abuts against the inner wall of the pipeline, allowing it to move. The air supply adjustment mechanism can supply air to the pneumatic adjustment and moving mechanism, thereby adjusting its position to drive the movement of the inner wall of the pipeline. Expansion adjustment is achieved through pneumatic air supply, making adjustment more convenient. The structure is simple and easy to maintain.

[0025] 2. The swing drive mechanism of this utility model can swing left and right on the inner front end of the construction spraying robot body for spraying construction. The swing drive mechanism can drive the swing spraying mechanism to swing left and right for anti-corrosion spraying construction. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the combined structure of the swing drive mechanism, the swing spraying mechanism, and the spraying liquid supply mechanism of this utility model;

[0028] Figure 3 This is a schematic diagram of the swing spraying mechanism of this utility model;

[0029] Figure 4 This is a schematic cross-sectional view of the pneumatic adjustment and moving mechanism of this utility model;

[0030] Figure 5 This is a schematic diagram of the gas supply regulation mechanism of this utility model.

[0031] In the picture:

[0032] 1. Robot power supply; 2. Robot body; 3. Heat sink; 31. Right-angle delivery pipe; 32. Air pump; 33. T-joint delivery pipe; 4. Hollow arm plate; 41. Air inlet pipe; 42. Inflatable airbag; 5. Concave arm plate; 51. Drive motor; 52. Vibration damping spring; 53. Active walking wheel; 54. Driven walking wheel; 6. Rotary motor; 61. Screw mounting plate; 62. First coupling; 7. Hollow disc; 71. Hollow spray coating ring; 72. Cross-head air supply pipe; 73. Air inlet slot; 81. Positioning arm; 82. Cross-groove sleeve; 83. Anti-corrosion coating liquid input pipe; 84. Positioning cross-groove cavity. Detailed Implementation

[0033] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0034] Example 1

[0035] This embodiment provides a technical solution: a pipeline inner wall anti-corrosion spraying robot, such as... Figures 1-5 As shown, it includes the body of the construction spraying robot, the swing drive mechanism, the swing spraying mechanism, the spraying liquid supply mechanism, the pneumatic adjustment and movement mechanism, and the air supply adjustment mechanism.

[0036] The swing drive mechanism is installed on the inner front side of the construction spraying robot body. This mechanism allows for left-right swinging during spraying operations. The swing spraying mechanism is mounted on the front of the swing drive mechanism, enabling it to perform left-right swinging anti-corrosion spraying. A spraying liquid supply mechanism is installed around the swing spraying mechanism, supplying it with anti-corrosion coating. This mechanism is fixed to the swing drive mechanism for stable placement. The spraying liquid supply mechanism is connected to the anti-corrosion coating supply pipe, facilitating the receipt of anti-corrosion coating from the supply pipe for anti-corrosion application. The pneumatic adjustment and movement mechanism is symmetrically fixed to the outer wall of the construction spraying robot body, allowing for stable placement. When moving, the pneumatic adjustment and movement mechanism can drive the construction spraying robot body to move. The pneumatic adjustment and movement mechanism abuts against the inner wall of the pipe, enabling it to move. The air supply adjustment mechanism is installed and connected to the rear end of the construction spraying robot body, allowing for corresponding installation and placement, and is connected to the pneumatic adjustment and movement mechanism. The air supply adjustment mechanism can supply air to the pneumatic adjustment and movement mechanism, thereby adjusting its position to drive the movement along the inner wall of the pipe. Expansion adjustment is achieved through pneumatic air supply, making adjustment more convenient, and the structure is simple and easy to maintain.

[0037] The construction spraying robot body includes robot body 2, which is electrically connected to the control box via robot power supply 1, and can be controlled accordingly through the control box.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the air supply regulation mechanism includes a heat dissipation shroud 3, which is fixedly attached to the robot body 2 and can be placed stably. An air pump 32 is installed inside the heat dissipation shroud 3 by screws, which can be placed stably to exhaust and supply air. A three-way delivery pipe 33 is installed at the front end of the air pump 32, which can exhaust and supply air to the three-way delivery pipe 33. Right-angle delivery pipes 31 that pass through the heat dissipation shroud 3 are installed at both ends of the three-way delivery pipe 33 by screws, which can exhaust and supply air to the right-angle delivery pipes 31. A pneumatic adjustment and moving mechanism is installed at the lower end of the right-angle delivery pipe 31 by screws, which can exhaust and supply air to the pneumatic adjustment and moving mechanism.

[0039] The pneumatic adjustment and movement mechanism includes a hollow arm plate 4, which is fixedly attached to the robot body 2 for stable installation. An inflatable airbag 42 is fixedly attached inside the hollow arm plate 4, allowing it to expand and be positioned within the hollow arm plate 4. An air intake pipe 41, passing through the hollow arm plate 4, is fixedly connected to the upper end of the inflatable airbag 42. The air intake pipe 41 supplies and exhausts air to the inflatable airbag 42 inside the hollow arm plate 4. The air intake pipe 41 is mounted on a right-angle delivery pipe 31 by screws, allowing it to supply and exhaust air. A concave arm plate 5, passing through the hollow arm plate 4, is fixedly attached to the outer end of the inflatable airbag 42. When the inflatable airbag 42 expands, it compresses the concave arm plate 5, causing it to move outward within the hollow arm plate 4. When not inflated, the shape of the inflatable airbag 42 can effectively resist the concave arm plate 5, thus facilitating stable contact. A damping spring 52 is fixed between the concave arm plate 5 and the hollow arm plate 4, which provides good vibration damping. An active walking wheel 53 is rotatably mounted on the inner side of the outer end of the concave arm plate 5. A drive motor 51 located on the concave arm plate 5 is fixed to the outer end of the active walking wheel 53. When the output shaft of the drive motor 51 rotates, it can drive the active walking wheel 53 on the concave arm plate 5 to form a shape. The active walking wheel 53 contacts the inner wall of the pipe, allowing it to move. A driven walking wheel 54 is rotatably mounted on the inner side of the active walking wheel 53 on the concave arm plate 5. The driven walking wheel 54 can assist in rolling and ensure stability during movement.

[0040] During use, the swing drive mechanism can swing left and right on the inner front side of the construction spraying robot body for spraying. The swing drive mechanism can drive the swing spraying mechanism to perform anti-corrosion spraying. The spraying liquid supply mechanism can supply liquid to the swing spraying mechanism and is fixed on the swing drive mechanism for stable placement. The spraying liquid supply mechanism can easily receive the anti-corrosion coating delivered by the anti-corrosion coating supply pipe for anti-corrosion construction. When moving, the pneumatic adjustment and movement mechanism can drive the construction spraying robot body to move. The pneumatic adjustment and movement mechanism abuts against the inner wall of the pipe, allowing it to move. The air supply adjustment mechanism can supply air to the pneumatic adjustment and movement mechanism, thereby adjusting its position and driving it to move along the inner wall of the pipe. Expansion adjustment is achieved through pneumatic air supply, making adjustment more convenient, and the structure is simple and easy to maintain.

[0041] Example 2

[0042] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figures 1-3As shown, to further better realize this utility model, the following configuration is specifically adopted: the swing drive mechanism includes a rotary motor 6, and a screw mounting plate 61 is fixedly connected to the periphery of the rotary motor 6. The rotary motor 6 can be correspondingly mounted on the robot body 2 through the screw mounting plate 61. A first coupling 62 is fixedly connected to the output shaft end of the rotary motor 6. When the output shaft of the rotary motor 6 swings left and right, it can drive the first coupling 62 to rotate. A swing spraying mechanism is installed at the front end of the first coupling 62. The first coupling 62 can drive the swing spraying mechanism to swing. The rotary motor 6 is electrically connected to the robot body 2 through a connecting wire for easy control and drive.

[0043] The oscillating spraying mechanism includes a hollow disc 7. The hollow interior of the disc 7 effectively stores the anti-corrosion coating liquid. A perforated spraying ring 71 is fixedly connected to the inner circumference of the hollow disc 7. The anti-corrosion coating inside the disc 7 can also be effectively sprayed out through the perforations of the perforated spraying ring 71, which facilitates spraying construction. A cross-shaped gas supply pipe 72 is fixedly connected through the middle of the rear end of the hollow disc 7. The hollow disc 7 can receive the anti-corrosion coating liquid input by the cross-shaped gas supply pipe 72. The convex part of the cross-shaped gas supply pipe 72... The outlet is provided with an air inlet slot 73. The cross-head air supply pipe 72 can receive external anti-corrosion coating liquid through the air inlet slot 73. A spraying liquid supply mechanism is installed around the cross-head air supply pipe 72. The cross-head air supply pipe 72 can receive the anti-corrosion coating liquid provided by the spraying liquid supply mechanism. The cross-head air supply pipe 72 is fixed to the first coupling 62. When the first coupling 62 rotates, it can drive the cross-head air supply pipe 72 to rotate, which facilitates the swinging of the anti-corrosion coating application.

[0044] The spraying liquid supply mechanism includes a cross-grooved sleeve 82, with a positioning cross-grooved cavity 84 inside. The cross-grooved sleeve 82 is rotatably sleeved on the periphery of the cross-head gas supply pipe 72 through the positioning cross-grooved cavity 84. The anti-corrosion coating liquid received by the cross-grooved sleeve 82 can be effectively delivered into the cross-head gas supply pipe 72. A positioning arm 81 is fixedly connected to the rear end of the cross-grooved sleeve 82. The cross-grooved sleeve 82 can be fixedly placed by the positioning arm 81. The positioning arm 81 is fixedly connected to the rotary motor 6 and can be installed and placed stably. An anti-corrosion coating liquid input pipe 83 is fixedly connected through the outer wall of the cross-grooved sleeve 82. The cross-grooved sleeve 82 can receive the anti-corrosion coating liquid input by the anti-corrosion coating liquid input pipe 83. The anti-corrosion coating liquid input pipe 83 is connected to the anti-corrosion coating liquid supply pipe and can be received and delivered accordingly.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A pipeline inner wall anti-corrosion spraying robot, characterized in that, include: The body of the construction spraying robot; A swing drive mechanism is installed and connected to the inner front end of the construction spraying robot body; A oscillating spraying mechanism, which is mounted on the front end of an oscillating drive mechanism; A spraying liquid supply mechanism is installed on the periphery of the oscillating spraying mechanism and fixed on the oscillating drive mechanism. The spraying liquid supply mechanism is connected to the anti-corrosion coating supply pipe. A pneumatically adjustable moving mechanism is symmetrically fixed to the outer wall of the construction spraying robot body; An air supply regulating mechanism is installed and connected to the rear end of the construction spraying robot body and is connected to the pneumatic regulating and moving mechanism.

2. The pipeline inner wall anti-corrosion spraying robot according to claim 1, characterized in that: The construction spraying robot body includes a robot body (2), which is electrically connected to the control box via a robot power source (1).

3. The pipeline inner wall anti-corrosion spraying robot according to claim 1, characterized in that: The swing drive mechanism includes a rotary motor (6), a screw mounting plate (61) is fixedly connected to the periphery of the rotary motor (6), a first coupling (62) is fixedly connected to the output shaft end of the rotary motor (6), a swing spraying mechanism is installed at the front end of the first coupling (62), and the rotary motor (6) is electrically connected to the robot body (2) through a connecting line.

4. The pipeline inner wall anti-corrosion spraying robot according to claim 3, characterized in that: The oscillating spraying mechanism includes a hollow disc (7), a hollow spraying ring (71) is fixedly connected to the inner circumference of the hollow disc (7), a cross-head gas supply pipe (72) is fixedly connected through the middle of the rear end of the hollow disc (7), an air inlet slot (73) is opened on the protruding part of the cross-head gas supply pipe (72), a spraying liquid supply mechanism is installed on the periphery of the cross-head gas supply pipe (72), and the cross-head gas supply pipe (72) is fixedly connected to the first coupling (62).

5. The pipeline inner wall anti-corrosion spraying robot according to claim 4, characterized in that: The spraying liquid supply mechanism includes a cross-groove sleeve (82), the inside of which is provided with a positioning cross groove cavity (84). A positioning arm (81) is fixedly connected to the rear end of the cross-groove sleeve (82), and the positioning arm (81) is fixedly connected to a rotary motor (6). The cross-groove sleeve (82) is rotatably sleeved on the periphery of the cross-head gas supply pipe (72) through the positioning cross groove cavity (84). An anti-corrosion coating liquid input pipe (83) is fixedly connected through the outer wall of the cross-groove sleeve (82), and the anti-corrosion coating liquid input pipe (83) is connected to the anti-corrosion coating liquid supply pipe.

6. The pipeline inner wall anti-corrosion spraying robot according to claim 1, characterized in that: The air supply regulating mechanism includes a heat dissipation shroud (3), an air pump (32) is installed inside the heat dissipation shroud (3) by screws, a three-way delivery pipe (33) is installed at the front end of the air pump (32), and right-angle delivery pipes (31) passing through the heat dissipation shroud (3) are installed at both ends of the three-way delivery pipe (33) by screws. A pneumatic regulating moving mechanism is installed at the lower end of the right-angle delivery pipe (31) by screws.

7. The pipeline inner wall anti-corrosion spraying robot according to claim 6, characterized in that: The pneumatic adjustment and movement mechanism includes a hollow arm plate (4), which is fixed to the robot body (2). An inflatable airbag (42) is fixed inside the hollow arm plate (4). An air inlet pipe (41) passing through the hollow arm plate (4) is fixed to the upper end of the inflatable airbag (42). The air inlet pipe (41) is installed on a right-angle delivery pipe (31) by screws. A concave arm plate (5) passing through the hollow arm plate (4) is fixed to the outer end of the inflatable airbag (42). A damping spring (52) is fixed between the concave arm plate (5) and the hollow arm plate (4). An active walking wheel (53) is rotatably installed on the inner side of the outer end of the concave arm plate (5). A drive motor (51) located on the concave arm plate (5) is fixed to the outer end of the active walking wheel (53). A driven walking wheel (54) is rotatably installed on the inner side of the active walking wheel (53) located on the concave arm plate (5).