Municipal pipeline inner wall spraying device

Abstract

The utility model discloses a municipal pipeline inner wall spraying device and belongs to the technical field of pipeline spraying, the municipal pipeline inner wall spraying device comprises a walking mechanism, a spraying mechanism and a supporting mechanism, the walking mechanism comprises a shell, and a plurality of moving assemblies are evenly distributed on the outer wall of the shell; the spraying mechanism comprises a connecting pipe arranged in the shell, a spraying head is arranged at one end of the connecting pipe, the supporting mechanism comprises an I-shaped base, stand columns are fixedly connected to the two sides of the I-shaped base, a mounting plate is arranged between the two stand columns, a chuck is arranged on one side of the mounting plate, and a supporting arm is fixedly connected to one side of a clamping jaw of the chuck. And the other end of the supporting arm is lapped on the outer wall of the pipeline. By arranging the supporting mechanism, the length of the pipeline to be sprayed is increased in a disguised mode, when spraying equipment walks to the tail end of the pipeline, the supporting arms support the idler wheels, the walking mechanism continues to walk for a certain distance after walking out of the pipeline, and continuity and uniformity of spraying operation at the tail end of the pipeline are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline spraying technology, and specifically relates to a municipal pipeline inner wall spraying device. Background Technology

[0002] In the construction and maintenance of municipal infrastructure, water supply and drainage pipelines, as a key component of the urban water cycle system, bear the important task of transporting water resources. However, these pipelines are exposed to a complex and ever-changing natural environment during operation, inevitably subject to erosion from various media such as soil, water flow, and air. The chemical substances, microbial activity, and electrochemical effects contained in these media collectively constitute a potential threat to the inner wall of the pipeline, causing the pipe wall to gradually thin. In severe cases, this can even lead to serious safety problems such as perforation and leakage, affecting not only the normal operation of the pipeline but also potentially causing incalculable damage to the surrounding environment and residents' lives.

[0003] Especially for water supply pipes, the corrosion of their inner walls directly affects the safety of the water quality. The rust and scale formed by corrosion not only affect the sensory indicators of the water, but may also contain heavy metal ions that are harmful to human health, becoming a potential source of pollution for residential drinking water.

[0004] Given the dual threat that corrosion poses to both pipeline structural integrity and water quality safety, taking effective measures to slow down or stop the corrosion process is of paramount importance. Spraying corrosion inhibitors, as an economical and efficient corrosion protection method, is widely used for the protection of pipeline inner walls. By forming a dense protective layer, it effectively isolates the pipeline inner wall from direct contact with external corrosive media, thereby significantly reducing the corrosion rate, extending pipeline service life, and reducing the high costs associated with pipeline replacement and maintenance. Furthermore, compared to replacing the entire pipeline, the application of corrosion inhibitors is simpler and faster, and has less impact on residents' daily water use, demonstrating good economic efficiency and practicality.

[0005] However, the implementation of anti-corrosion spraying on the inner walls of pipelines, especially for smaller diameter pipelines, still faces some technical challenges. Publication number CN221733793U discloses an anti-corrosion spraying device for pipeline inner walls. This device, through the design of support and displacement components, achieves autonomous movement and spraying operations inside the pipeline, significantly improving work efficiency and spraying quality. However, this solution encounters a bottleneck when operating at the end of the pipeline: when the support and displacement components move beyond the pipeline end and lose necessary support points, the device cannot continue to move stably, requiring manual dragging to complete the remaining spraying. This undoubtedly increases the difficulty of the operation and labor costs, limiting the applicability and efficiency of the device. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a municipal pipeline inner wall spraying device to solve the problem of inconvenience in moving existing spraying equipment at the end of the pipeline.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A municipal pipeline inner wall spraying device, comprising:

[0009] The walking mechanism includes a housing, on which a plurality of moving components are evenly distributed, and at the end of each moving component is a roller rotatably connected, the roller contacting the inner wall of the pipe.

[0010] The spraying mechanism includes a connecting pipe disposed inside the housing, one end of the connecting pipe is provided with a nozzle, the nozzle is evenly distributed with a plurality of spray holes, and the other end of the connecting pipe is connected to a flexible hose.

[0011] A support mechanism is provided for supporting the walking mechanism. The support mechanism includes an I-shaped base with multiple casters at the bottom. Columns are fixedly connected to both sides of the I-shaped base, and an mounting plate is provided between the two columns. A chuck is provided on one side of the mounting plate, and a support arm is fixedly connected to one side of the chuck's claws. The other end of the support arm overlaps the outer wall of the pipe, and the length of the support arm is greater than the length of the outer shell.

[0012] Furthermore, a bearing is mounted on the mounting plate, and a bushing is fixedly connected to one end of the chuck, with the bushing mounted on the bearing.

[0013] Furthermore, the support arm has a U-shaped structure.

[0014] Furthermore, the mounting plate has T-shaped blocks at both ends, and the T-shaped blocks have through threaded holes inside; the column has a T-shaped groove on one side, and the T-shaped blocks are slidably installed in the T-shaped groove. A stud is rotatably connected to the column, and the stud is threadedly connected to the T-shaped blocks. One end of the stud is provided with a handwheel.

[0015] Furthermore, the movable component includes two sets of parallel legs, with rollers rotatably mounted at the ends of the legs. A linkage plate is pivotally connected between the two sets of legs, and a connecting rod is provided in the middle of the linkage plate. A sleeve is pivotally connected to the outer shell, with a telescopic rod movably inserted into one end of the sleeve. The other end of the telescopic rod is pivotally connected to the connecting rod. A first limiting plate is provided outside the sleeve, and a second limiting plate is provided on the telescopic rod. A spring connects the first limiting plate and the second limiting plate.

[0016] Furthermore, a fixing frame is provided inside the outer casing, and a first motor is installed on one side of the fixing frame. A drive gear is connected to the output shaft of the first motor. The connecting pipe is rotatably connected to the outer casing, and a driven gear that meshes with the drive gear is provided on the connecting pipe. A rotary joint is connected to one end of the connecting pipe, and the other end of the rotary joint is connected to a flexible hose.

[0017] Furthermore, a cleaning mechanism is provided at one end of the connecting pipe. The cleaning mechanism includes multiple sets of support frames. One end of the support frame is connected to the connecting pipe, and the other end is connected to a brush. The brush abuts against the inner wall of the pipe.

[0018] Furthermore, the connecting pipe is provided with a fixed end plate and a movable end plate. The fixed end plate is fixedly installed on the connecting pipe, and the movable end plate is slidably connected to the connecting pipe. A tension spring is connected between the fixed end plate and the movable end plate. The support frame includes two symmetrically arranged support rods. One end of one support rod is pivotally connected to the fixed end plate, and one end of the other support rod is pivotally connected to the movable end plate. The other ends of both support rods are pivotally connected to the brush.

[0019] Furthermore, it also includes a coiling mechanism, which includes a bracket fixedly installed on one side of the mounting plate, a coil being rotatably connected to the bracket, and a second motor provided on one side of the bracket, the output shaft of the second motor being connected to the coil to drive the coil to rotate.

[0020] The beneficial effects of this utility model are:

[0021] 1) By setting up a support mechanism, this utility model indirectly extends the length of the pipe to be sprayed. When the spraying equipment travels to the end of the pipe, the support arm provides support for the roller, so that the traveling mechanism continues to travel a certain distance after leaving the pipe, ensuring the continuity and uniformity of the spraying operation at the end of the pipe.

[0022] 2) The chuck is rotatably mounted on one side of the mounting plate, which facilitates the adjustment of the position of the support arm according to the deflection of the traveling mechanism in the pipeline, so as to ensure that the support arm can effectively bear the roller.

[0023] 3) The height of the mounting plate can be adjusted by studs, which facilitates spraying operations on pipes of different heights.

[0024] 4) The legs of the moving component can adapt to the inner wall size of the pipe, making it suitable for spraying operations on pipes of various specifications.

[0025] 5) By setting up a cleaning mechanism that can automatically adjust the position of the brush according to the inner diameter of the pipe, the dust on the inner wall of the pipe is cleaned by the brush before the pipe spraying operation, ensuring the effect of pipe spraying.

[0026] 6) By setting up a coil mechanism, the second motor drives the coil drum to rotate, realizing the unwinding and rewinding of the hose. This avoids manually dragging the hose to drive the walking mechanism to move inside the pipe, reducing the labor intensity of the operators. At the same time, it ensures that the walking mechanism moves at a constant speed inside the pipe, thereby ensuring the spraying effect of the spraying device. Attached Figure Description

[0027] Figure 1 This is a diagram showing the usage status of a municipal pipeline inner wall spraying device according to this utility model.

[0028] Figure 2 This is a schematic diagram of the walking mechanism.

[0029] Figure 3 This is a schematic diagram of the inside of the outer casing.

[0030] Figure 4 This is a diagram showing the installation of the rollers.

[0031] Figure 5 This is a schematic diagram of the support structure.

[0032] Figure 6 This is a schematic diagram of the connection between the chuck and the support arm.

[0033] Figure 7 This is a schematic diagram of the coil mechanism installation.

[0034] In the diagram, 1. Pipe; 2. Walking mechanism; 21. Outer casing; 22. Outrigger; 23. Roller; 24. Linkage plate; 25. Sleeve; 26. Telescopic rod; 27. Spring; 28. Connecting rod; 3. Spraying mechanism; 31. Connecting pipe; 32. Spray nozzle; 33. Rotary joint; 34. Fixing frame; 35. First motor; 36. Drive gear; 37. Driven gear; 38. Hose; 4. Cleaning mechanism; 41. 42. Fixed end plate; 43. Movable end plate; 44. Tension spring; 45. Support rod; 46. Brush; 57. Support mechanism; 58. I-shaped base; 59. Column; 50. Stud; 51. Handwheel; 52. Mounting plate; 53. T-block; 54. Chuck; 55. Bushing; 56. Support arm; 57. Caster wheel; 58. Bearing; 69. Coil mechanism; 60. Bracket; 61. Coil cylinder; 62. Second motor. Detailed Implementation

[0035] The following will be combined with the appendix Figures 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] like Figure 1 As shown, a municipal pipeline inner wall spraying device includes: a traveling mechanism 2, a spraying mechanism 3, and a supporting mechanism 5, as shown. Figure 2 , Figure 3 As shown, the walking mechanism 2 includes a housing 21, on which a plurality of moving components are evenly distributed. Each moving component has a roller 23 rotatably connected to its end, and the roller 23 contacts the inner wall of the pipe 1. Figure 3 As shown, the spraying mechanism 3 includes a connecting pipe 31 disposed inside the housing 21. One end of the connecting pipe 31 is provided with a nozzle 32, and the nozzle 32 is evenly distributed with a plurality of spray holes. The other end of the connecting pipe 31 is connected to a flexible hose 38.

[0038] like Figure 5 As shown, the support mechanism 5 is used to support the walking mechanism 2. The support mechanism 5 includes an I-shaped base 51, with multiple casters 58 at the bottom. Columns 52 are fixedly connected to both sides of the I-shaped base 51, and an mounting plate 55 is provided between two columns 52. A chuck 56 is provided on one side of the mounting plate 55. The chuck 56 adopts an existing mature product. The number of jaws of the chuck 56 corresponds to the number of moving components. In this embodiment, there are three sets of moving components, and the chuck 56 is a three-jaw chuck 56. In other embodiments, the moving components can be set to four or five sets, and correspondingly, the chuck 56 is a four-jaw chuck 56 or a five-jaw chuck 56. A support arm 57 is fixedly connected to one side of the jaws of the chuck 56. The other end of the support arm 57 overlaps the outer wall of the pipe 1, and the length of the support arm 57 is greater than the length of the outer shell 21.

[0039] During the spraying operation, the traveling mechanism 2 travels from one end of the pipe 1 to the other. The paint enters the connecting pipe 31 through the hose 38 and is sprayed onto the inner wall of the pipe 1 from multiple spray holes of the nozzle 32, achieving uniform spraying of the inner wall of the pipe. When the spraying equipment travels to the end of the pipe 1, the support arm 57 provides support for the roller 23, allowing the traveling mechanism 2 to continue traveling a distance after leaving the pipe, ensuring the continuity and uniformity of the spraying operation at the end of the pipe and reducing the labor intensity of the operators.

[0040] like Figure 7 As shown, a bearing 59 is mounted on the mounting plate 55, such as... Figure 6 As shown, a bushing 561 is fixedly connected to one end of the chuck 56. The bushing 561 is mounted on the bearing 59, which allows the chuck 56 to rotate on the mounting plate 55, thereby adapting to the deflection of the walking mechanism 2 in the pipeline and ensuring that the support arm 57 accurately aligns with the roller 23.

[0041] like Figure 5 As shown, the support arm 57 has a U-shaped structure, which prevents the roller 23 from falling off the support arm 57.

[0042] like Figure 7 As shown, the mounting plate 55 has T-shaped blocks 551 at both ends, and the T-shaped blocks 551 have through threaded holes inside; the column 52 has a T-shaped groove on one side, as shown. Figure 5 As shown, the T-shaped block 551 is slidably installed on the column 52 in the T-slot and is rotatably connected to the stud 53. The stud 53 is threadedly connected to the T-shaped block 551, and one end of the stud 53 is provided with a handwheel 54. By rotating the handwheel 54, the height of the mounting plate 55 can be adjusted, thereby adapting to the spraying operation of pipes placed at different heights.

[0043] like Figure 4 As shown, the moving assembly includes two sets of parallel supporting legs 22, with rollers 23 rotatably mounted at the ends of the supporting legs 22. A linkage plate 24 is pivotally connected between the two sets of supporting legs 22, and a connecting rod 28 is provided in the middle of the linkage plate 24. A sleeve 25 is pivotally connected to the outer shell 21, and a telescopic rod 26 is movably inserted into one end of the sleeve 25. The other end of the telescopic rod 26 is pivotally connected to the connecting rod 28. A first limiting plate is provided on the outside of the sleeve 25, and a second limiting plate is provided on the telescopic rod 26. Figure 3 As shown, a spring 27 is connected between the first limiting plate and the second limiting plate; the elastic force of the spring 27 enables the telescopic rod 26 to be extended and retracted according to the actual size of the pipe, and then drives the linkage plate 24 and the support leg 22 to make fine adjustments through the connecting rod 28, so as to ensure that the roller 23 is in close contact with the surface of the pipe, providing stable support and mobility for the walking mechanism 2.

[0044] like Figure 3 As shown, a fixing frame 34 is provided inside the outer casing 21. A first motor 35 is installed on one side of the fixing frame 34, and a drive gear 36 is connected to the output shaft of the first motor 35. The connecting pipe 31 is rotatably connected to the outer casing 21, and a driven gear 37 that meshes with the drive gear 36 is provided on the connecting pipe 31. One end of the connecting pipe 31 is connected to a rotary joint 33, and the other end of the rotary joint 33 is connected to a hose 38. When the spraying device is in operation, the first motor 35 drives the connecting pipe 31 to rotate through gear transmission, thereby driving the spray head 32 to rotate, ensuring the uniformity and consistency of the pipeline spraying.

[0045] like Figure 3As shown, a cleaning mechanism 4 is provided at one end of the connecting pipe 31. The cleaning mechanism 4 includes multiple sets of support frames. One end of the support frame is connected to the connecting pipe 31, and the other end is connected to a brush 45. The brush 45 abuts against the inner wall of the pipe 1. Before the spraying operation, the brush 45 is used to clean the dust on the inner wall of the pipe 1, which further ensures the effect of pipe spraying.

[0046] like Figure 3 As shown, the connecting pipe 31 is provided with a fixed end plate 41 and a movable end plate 42. The fixed end plate 41 is fixedly installed on the connecting pipe 31, and the movable end plate 42 is slidably connected to the connecting pipe 31. A tension spring 43 is connected between the fixed end plate 41 and the movable end plate 42. The support frame includes two symmetrically arranged support rods 44. One end of one support rod 44 is pivotally connected to the fixed end plate 41, and one end of the other support rod 44 is pivotally connected to the movable end plate 42. The other ends of both support rods 44 are pivotally connected to the brush 45, so that the brush 45 of the cleaning mechanism 4 can adapt to various specifications of pipes, ensuring the cleaning effect of the cleaning mechanism 4.

[0047] like Figure 7 As shown, it also includes a coiling mechanism 6, which includes a bracket 61 fixedly installed on one side of the mounting plate 55. A coil 62 is rotatably connected to the bracket 61. A second motor 63 is provided on one side of the bracket 61. The output shaft of the second motor 63 is connected to the coil 62 to drive the coil 62 to rotate, thereby realizing the unwinding and rewinding of the hose 38. This avoids manually dragging the hose 38 to drive the walking mechanism 2 to walk in the pipe, reducing the labor intensity of the operators. At the same time, it ensures that the walking mechanism 2 walks at a uniform speed in the pipe, thereby ensuring the spraying effect of the spraying device.

[0048] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.

Claims

1. A municipal pipeline inner wall spraying device, comprising: a walking mechanism (2), the walking mechanism (2) comprising a shell (21), a plurality of moving assemblies are uniformly distributed on the outer wall of the shell (21), the end of the moving assembly is rotatably connected with a roller (23), the roller (23) is in contact with the inner wall of the pipeline (1); a spraying mechanism (3), the spraying mechanism (3) comprising a connecting pipe (31) arranged inside the shell (21), one end of the connecting pipe (31) is provided with a spray head (32), a plurality of spray holes are uniformly distributed on the spray head (32), the other end of the connecting pipe (31) is connected with a hose (38); characterized in that it further comprises a supporting mechanism (5) for supporting the walking mechanism (2), the supporting mechanism (5) comprising an I-shaped base (51), a plurality of casters (58) are arranged on the lower part of the I-shaped base (51), two vertical columns (52) are fixedly connected on both sides of the I-shaped base (51), an installation plate (55) is arranged between the two vertical columns (52), a chuck (56) is arranged on one side of the installation plate (55), a supporting arm (57) is fixedly connected on one side of the chuck (56), the other end of the supporting arm (57) is overlapped on the outer wall of the pipeline (1), and the length of the supporting arm (57) is greater than the length of the shell (21).

2. The device for spraying the inner wall of a municipal pipeline according to claim 1, characterized in that, A bearing (59) is arranged on the installation plate (55), one end of the chuck (56) is fixedly connected with a shaft sleeve (561), and the shaft sleeve (561) is arranged on the bearing (59).

3. The device for spraying the inner wall of a municipal pipeline according to claim 1, characterized in that, The supporting arm (57) is in U-shaped structure.

4. The device for spraying the inner wall of a municipal pipeline according to claim 1, characterized in that, T-shaped blocks (551) are arranged at both ends of the installation plate (55), the T-shaped blocks (551) are internally provided with through threaded holes; one side of the vertical column (52) is provided with a T-shaped groove, the T-shaped blocks (551) are slidably arranged in the T-shaped groove; a threaded stud (53) is rotatably connected on the vertical column (52), the threaded stud (53) is threadedly connected with the T-shaped block (551), and one end of the threaded stud (53) is provided with a hand wheel (54).

5. The device for spraying the inner wall of a municipal pipeline according to claim 1, characterized in that, The moving assembly comprises two groups of supporting legs (22) arranged in parallel, the roller (23) is rotatably arranged at the end of the supporting leg (22), a linkage plate (24) is pivotally connected between the two groups of supporting legs (22), a connecting rod (28) is arranged in the middle of the linkage plate (24), a sleeve (25) is pivotally connected on the shell (21), a telescopic rod (26) is movably inserted at one end of the sleeve (25), the other end of the telescopic rod (26) is pivotally connected with the connecting rod (28), a first limiting plate is arranged outside the sleeve (25), a second limiting plate is arranged on the telescopic rod (26), and a spring (27) is connected between the first limiting plate and the second limiting plate.

6. The device for spraying the inner wall of a municipal pipeline according to claim 1, characterized in that, A fixing frame (34) is arranged inside the shell (21), a first motor (35) is arranged on one side of the fixing frame (34), a driving gear (36) is connected on the output shaft of the first motor (35); the connecting pipe (31) is rotatably connected with the shell (21), a driven gear (37) is arranged on the connecting pipe (31) and engaged with the driving gear (36); one end of the connecting pipe (31) is connected with a rotary joint (33), the other end of the rotary joint (33) is connected with the hose (38).

7. A device for spraying the inside of a municipal pipe according to claim 6, characterized in that The connecting pipe (31) is provided with a cleaning mechanism (4) at one end, the cleaning mechanism (4) comprises a plurality of support frames, one end of the support frame is connected with the connecting pipe (31), the other end is connected with a brush (45), and the brush (45) abuts against the inner wall of the pipeline (1).

8. A municipal pipe interior wall spraying device according to claim 7, characterized in that, The connecting pipe (31) is provided with a fixed end plate (41) and a movable end plate (42), the fixed end plate (41) is fixedly installed on the connecting pipe (31), the movable end plate (42) is slidably connected with the connecting pipe (31), and the fixed end plate (41) and the movable end plate (42) are connected with a tension spring (43); the support frame comprises two symmetrically arranged supporting rods (44), one end of one of the supporting rods (44) is pivotally connected with the fixed end plate (41), one end of the other supporting rod (44) is pivotally connected with the movable end plate (42), and the other ends of the two supporting rods (44) are both pivotally connected with the brush (45).

9. A device for spraying the inside of a municipal pipe according to any one of claims 1-8, characterized in that, Further comprising a coil pipe mechanism (6), the coil pipe mechanism (6) comprises a support (61) fixedly installed on one side of the mounting plate (55), the support (61) is rotatably connected with a coil pipe cylinder (62), one side of the support (61) is provided with a second motor (63), the output shaft of the second motor (63) is connected with the coil pipe cylinder (62) to drive the coil pipe cylinder (62) to rotate.

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