Anti-corrosion spraying device

Abstract

The utility model discloses an anti-corrosion spraying device, which relates to the technical field of spraying and comprises a paint spraying assembly which moves along the inner side of a pipe and sprays anti-corrosion paint to the inner wall of the pipe, and the paint spraying assembly is connected with a fluid pipe for supplying fluid; one end of the barrel sleeves the outer side of the pipe, and the other end of the barrel is provided with a fluid conveying pipe and a conveying assembly enabling the fluid pipe to move in the axial direction of the pipe; according to the paint spraying device, the barrel body arranged at the end of the barrel body in a sleeving mode provides support for the paint spraying assembly after the paint spraying assembly is moved out of a pipe, and the paint spraying assembly can conduct complete spraying on the inner wall of the pipe; the conveying assembly on the barrel directly conveys the fluid pipe, the fluid pipe directly drives the paint spraying assembly to axially move at a constant speed, and spraying is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, and particularly relates to an anti-corrosion spraying device. Background Art

[0002] Spraying anti-corrosion coatings such as anti-corrosion paint on the surface of pipes can effectively delay the corrosion of pipes, thereby reducing the damage of pipes, ensuring the strength of pipes, and increasing the service life of pipes. Since the space inside the pipe is small and it is not convenient to directly spray, in the prior art, a spraying trolley is used to move along the inside of the pipe to spray the inner wall of the pipe. However, the simple spraying trolley cannot move automatically, and its movement needs to be realized by manually pulling the fluid pipe that supplies fluid to the spraying trolley. The manual driving method has high requirements for operation proficiency and cannot ensure the uniform movement of the spraying trolley. The invention patent application with the publication number of CN117299423A uses a motor-driven reel and a traction rope to drive the spraying trolley to move uniformly to ensure uniform spraying. However, this structure is not convenient for driving the fluid pipe, so the storage barrel is moved synchronously with the spraying trolley. The storage barrel located inside the pipe limits the volume of the storage barrel. And because the spraying trolley in the prior art has a certain axial length, at the end of spraying, the main body of the trolley moves out of the pipe and cannot provide support for the nozzle, resulting in the nozzle being unable to spray the inner wall of the tail end of the pipe, and manual supplementary coating is still required. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems in the prior art and provide an anti-corrosion spraying device.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An anti-corrosion spraying device includes a painting assembly that moves along the inside of the pipe and sprays anti-corrosion paint on the inner wall of the pipe. The painting assembly is connected with a fluid pipe for supplying fluid; it further includes a cylinder body, one end of the cylinder body is sleeved outside the pipe, and the other end of the cylinder body is provided with a conveying fluid pipe and a conveying assembly for moving the fluid pipe along the axial direction of the pipe.

[0006] Further, the conveying assembly includes a mounting frame connected with the cylinder body, a driving roller and a driven roller mounted on the mounting frame, and a motor for driving the driving roller; the driving roller and the driven roller clamp both sides of the fluid pipe to convey the fluid pipe.

[0007] Further, both the driving roller and the driven roller are provided with annular grooves corresponding to the fluid pipe.

[0008] Further, the number of the driving rollers and the driven rollers is the same and they correspond one by one; the number of the driving rollers is at least two, and a synchronous transmission mechanism is connected between adjacent driving rollers.

[0009] Furthermore, the cylinder body includes two half cylinders, and the two half cylinders are connected by bolts.

[0010] Furthermore, the painting assembly includes a central tube, a plurality of spray nozzles and a plurality of X-shaped frames. The spray nozzles are installed at the end of the central tube away from the conveying assembly to spray anti-corrosion paint on the inner wall of the pipe. The fluid pipe passes through the central tube and is connected to the spray nozzles. The X-shaped frames are evenly distributed circumferentially outside the central tube, and rollers are installed at the ends of the X-shaped frames away from the central tube.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The cylinder body of the present utility model sleeved at the end of the cylinder body provides support for the painting assembly after the painting assembly is removed from the pipe, enabling the painting assembly to completely spray the inner wall of the pipe; the conveying assembly on the cylinder body directly conveys the fluid pipe, and directly drives the painting assembly to move axially at a constant speed through the fluid pipe, making the spraying uniform;

[0013] The conveying assembly of the present utility model drives the driving roller to rotate through the motor, and multiple driving rollers rotate synchronously, cooperating with the driven roller to clamp the fluid pipe, enabling the fluid pipe to move axially relatively stably, and further enabling the painting assembly to move uniformly along the inner side of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is a schematic diagram of the spraying state of the present utility model.

[0016] Figure 3 is a schematic structural diagram of the cylinder body and the conveying assembly of the present utility model.

[0017] Figure 4 is a schematic structural diagram of the conveying assembly of the present utility model.

[0018] Figure 5 is a schematic structural diagram of the painting assembly of the present utility model.

[0019] In the figure: 1. Cylinder body; 2. Painting assembly; 3. Fluid pipe; 4. Conveying assembly; 5. Bolt; 6. Pipe.

[0020] 201. Central tube; 202. Spray nozzle; 203. X-shaped frame; 204. Roller; 205. Swivel ring; 206. Inner thread ring sleeve; 207. External thread section.

[0021] 401. Mounting frame; 402. Driving roller; 403. Motor; 404. Driven roller; 405. Synchronous transmission mechanism; 406. Annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0023] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object of "provided with" may be a part of the body, or it may be arranged separately from the body and connected to the body, and this connection may be a detachable connection or a non-detachable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0025] The present utility model will be further described in detail below in conjunction with embodiments.

[0026] Specific embodiments of the anti-corrosion spraying device provided by the present utility model:

[0027] Please refer to Figures 1-5 , an anti-corrosion spraying device, including a painting component 2 that moves along the inner side of the pipe 6 and sprays anti-corrosion paint on the inner wall of the pipe 6, and a fluid pipe 3 that supplies fluid to the painting component 2 is connected to the painting component 2.

[0028] A cylinder 1 is arranged outside the spraying end of the pipe 6. One end of the cylinder 1 is sleeved outside the pipe 6 and the rest is suspended. A conveying component 4 for conveying the fluid pipe 3 and moving the fluid pipe 3 along the axial direction of the pipe 6 is arranged at the other end of the cylinder 1.

[0029] The painting component 2 includes a central pipe 201, a plurality of nozzles 202 and a plurality of X-shaped frames 203. The nozzles 202 are installed at the end of the central pipe 201 far from the conveying component 4. The nozzles 202 are circumferentially distributed, arranged along the radial direction of the central pipe 201, and spray anti-corrosion paint on the inner wall of the pipe 6. Multiple nozzles 202 can completely spray the inner wall circumference of the pipe 6.

[0030] The fluid pipe 3 passes through the central pipe 201 and is connected to the spray head 202; a distributor is provided between the fluid pipe 3 and the spray head 202. The distributor is located at the end of the central pipe 201 and is connected to the fluid pipe 3; the spray head 202 is circumferentially connected to the outside of the distributor. In this embodiment, there are two fluid pipes 3, which are respectively the conveying pipe for anti-corrosion paint and the conveying pipe for high-pressure gas. The anti-corrosion paint and the high-pressure gas are mixed in the distributor and are evenly sprayed towards the inner wall of the pipe 6 through the spray head 202.

[0031] In this embodiment, the number of X-shaped frames 203 is three. Roller wheels 204 are rotatably installed at the ends of the X-shaped frames 203 far from the central pipe 201, and the number of roller wheels 204 is six; the roller wheels 204 roll on the inner wall of the pipe 6, enabling the paint spraying assembly 2 to axially move along the inner wall of the pipe 6 under a small resistance state. The X-shaped frames 203 are circumferentially distributed on the outside of the central pipe 201 and are arranged radially along the central pipe 201.

[0032] An external thread section 207 is provided on the outside of the half of the central pipe 201 far from the spray head 202. An internal thread ring sleeve 206 is threadedly connected to the outside of the external thread section 207. The internal thread ring sleeve 206 is rotatably connected to a rotating ring 205. The rotating ring 205 surrounds the central pipe 201, and its inner side does not contact the central pipe 201. The rotating ring 205 rotates around the central pipe 201 under the support of the internal thread ring sleeve 206. The X-shaped frame 203 is composed of two struts hinged in the middle; at the two ends of the inner end of the X-shaped frame 203, one is hinged to the central pipe 201 and the other is hinged to the rotating ring 205. When the internal thread ring sleeve 206 is rotated, the axial position of the internal thread ring sleeve 206 outside the central pipe 201 can be adjusted, changing the position of the rotating ring 205, and further changing the angle of the X-shaped frame 203, so that the roller wheels 204 can roll on the inner wall of the pipe 6. In this embodiment, a handle is connected to the outside of the internal thread ring sleeve 206, and the internal thread ring sleeve 206 can be driven to rotate through the handle.

[0033] The conveying assembly 4 includes a mounting frame 401 connected to the cylinder body 1, a driving roller 402 and a driven roller 404 mounted on the mounting frame 401, and a motor 403 for driving the driving roller 402; the driving roller 402 and the driven roller 404 clamp both sides of the fluid pipe 3 to convey the fluid pipe 3.

[0034] In this embodiment, the cylinder body 1 includes two half cylinders, and the two half cylinders are connected by bolts 5. Mounting frames 401 are provided at the ends of both half cylinders. The mounting frames 401 of the two half cylinders respectively rotatably mount the driving roller 402 and the driven roller 404; a motor 403 for driving the driving roller 402 to rotate is also mounted on the mounting frame 401 where the driving roller 402 is installed. The half cylinder is of an arc-shaped plate structure, and the edge of the arc-shaped plate structure has a folded edge. The bolt 5 passes through the folded edges of the two half cylinders to realize the connection of the two half cylinders, clamping the ends of the two half cylinders outside the end of the pipe 6, and at the same time clamping the fluid pipe 3 by the driving roller 402 and the driven roller 404.

[0035] The number of the driving rollers 402 and the driven rollers 404 is the same and they are in one-to-one correspondence; the number of the driving rollers 402 is at least two, and a synchronous transmission mechanism 405 is connected between adjacent driving rollers 402. In this embodiment, the number of both the driving rollers 402 and the driven rollers 404 is two, and the end of one of the driving rollers 402 is connected to the motor 403. A synchronous transmission mechanism 405 is connected between the ends of the two driving rollers 402. The synchronous transmission mechanism 405 can adopt a belt transmission mechanism or a chain transmission mechanism to make the two driving rollers 402 rotate synchronously and in the same direction.

[0036] Annular grooves 406 corresponding to the fluid pipes 3 are provided on both the driving rollers 402 and the driven rollers 404. The annular grooves 406 can increase the contact area with the fluid pipes 3, which is more conducive to the stable transportation of the fluid pipes 3, avoid slipping, ensure the uniform axial movement of the painting assembly 2, and make the spraying uniform. The size of the annular grooves 406 matches that of the fluid pipes 3. Annular grooves 406 with different sizes can adapt to fluid pipes 3 with different outer diameters. In this embodiment, the driving rollers 402 and the driven rollers 404 are hard rubber rollers. The rubber material makes the friction coefficient between them and the fluid pipes 3 relatively high, reducing the slipping phenomenon; a central shaft made of metal is fixedly penetrated through the center of the rubber roller, and the end of the central shaft is rotatably connected to the mounting frame 401.

[0037] During the spraying state, high-pressure anticorrosive paint and high-pressure gas flow through the two fluid pipes 3 respectively, so that the fluid pipes 3 have a stable shape. The driving rollers 402 and the driven rollers 404 clamp the fluid pipes 3 from both sides of the fluid pipes 3. The fluid pressure in the fluid pipes 3 makes the fluid pipes 3 closely fit with the outer rollers. The stable transportation of the fluid pipes 3 can be realized through the rotation of the rollers.

[0038] At the end section of the spraying process, when the rollers 204 of the painting assembly 2 are moved out of the pipe 6, but the spray heads 202 are not moved out of the pipe 6 and the spraying is not completely finished, the cylinder body 1 can support the rollers 204 and the painting assembly 2. The painting assembly 2 continues to move outwards. After the spray heads 202 completely spray the inner side of the tail end of the pipe 6, the spraying stops; the cylinder body 1 provides extended support for the painting assembly 2, and the complete spraying of the inner wall of the pipe 6 can be realized.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anti-corrosion spraying device, comprising a spraying component (2) that moves along the inner side of a pipe (6) and sprays anti-corrosion paint onto the inner wall of the pipe (6), the spraying component (2) being connected to a fluid pipe (3) for supplying fluid; characterized in that: It further includes a cylinder body (1), one end of the cylinder body (1) is sleeved outside the pipe material (6), and the other end of the cylinder body (1) is provided with a fluid conveying pipe (3) and a conveying assembly (4) for moving the fluid pipe (3) along the axial direction of the pipe material (6).

2. The anti-corrosion spraying device according to claim 1, wherein: The conveying assembly (4) includes a mounting frame (401) connected to the cylinder body (1), a driving roller (402) and a driven roller (404) mounted on the mounting frame (401), and a motor (403) for driving the driving roller (402); the driving roller (402) and the driven roller (404) are clamped on both sides of the fluid pipe (3) to convey the fluid pipe (3).

3. The anti-corrosion spraying device according to claim 2, wherein: Both the driving roller (402) and the driven roller (404) are provided with annular grooves (406) corresponding to the fluid pipe (3).

4. The anti-corrosion spraying device according to claim 2, characterized in that: The number of the driving rollers (402) and the driven rollers (404) is the same and they are in one-to-one correspondence; the number of the driving rollers (402) is at least two, and a synchronous transmission mechanism (405) is connected between adjacent driving rollers (402).

5. The anti-corrosion spraying device according to any one of claims 1-4, characterized in that: The cylinder body (1) includes two semi-cylinders, and the two semi-cylinders are connected by bolts (5).

6. The anti-corrosion spraying device according to claim 1, wherein: The painting assembly (2) includes a central pipe (201), a plurality of spray nozzles (202) and a plurality of X-shaped frames (203). The spray nozzles (202) are installed at the end of the central pipe (201) far from the conveying assembly (4) to spray an anti-corrosion coating on the inner wall of the pipe material (6). The fluid pipe (3) passes through the central pipe (201) and is connected to the spray nozzles (202); the X-shaped frames (203) are circumferentially distributed outside the central pipe (201), and rollers (204) are installed at the ends of the X-shaped frames (203) far from the central pipe (201).

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