A pipeline inner wall spraying device

Abstract

The utility model relates to a spraying technical field especially is a kind of pipeline inner wall spraying device.It mainly aims at the structure used for grinding needs to select the size of pipeline inner wall adhesion, which leads to different pipeline to adopt different length grinding structure, which leads to the problem of increasing the cost of pipeline inner wall spraying, and the following technical scheme is proposed, including rotary spraying rod, the rotary spraying rod outside is provided with positioning ring, the positioning ring outside is connected with threaded sleeve by screw thread;The rotary spraying rod outside is fixedly connected with positioning box, and the positioning box is rotatably connected with rotary disc.The utility model uses rotary disc to drive sliding rod and push rod to slide along limiting plate by rotary groove, so that push rod drives push plate and grinding plate to expand, so that grinding plate can grind pipeline inner wall, improve the effect that grinding plate adapts to different inner diameter pipeline, improve the adhesion effect of grinding plate to different pipeline inner wall.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and in particular to a pipe inner wall spraying device. Background Technology

[0002] Spraying is a mechanical construction process that uses a spray gun or atomizing equipment to atomize and evenly spray paint onto the surface of an object. It is widely used in industrial coating, surface treatment and other fields. Spraying is particularly important for the inner walls of pipes to prevent corrosion caused by liquid passing through them.

[0003] When spraying the inner wall of a pipe, the inner wall needs to be sanded to prevent the coating from being oxidized by the inner wall and causing insufficient adhesion. During the pipe spraying process, a rotating structure is used to sand the unsprayed areas a second time before spraying.

[0004] However, the structure used for grinding needs to be selected to fit the inner wall of the pipe, which means that different pipes require grinding structures of different lengths, thus increasing the cost of inner wall spraying. Therefore, this invention proposes a pipe inner wall spraying device. Utility Model Content

[0005] The purpose of this invention is to address the problem in the background art where the structure used for grinding needs to be selected to fit the inner wall of the pipe, which leads to different lengths of grinding structure required for different pipes. This increases the cost of inner wall spraying and results in insufficient coating adhesion after spraying, thus reducing the service life of the pipe. The invention proposes a pipe inner wall spraying device.

[0006] The technical solution of this utility model is as follows: a pipe inner wall spraying device, including a rotating spraying rod, a positioning ring is provided on the outside of the rotating spraying rod, and a threaded sleeve is threadedly connected to the outside of the positioning ring; a positioning box is fixedly connected to the outside of the rotating spraying rod, a rotating disk is rotatably connected inside the positioning box, a rotating groove is opened on the surface of the rotating disk, and a sliding rod is slidably connected inside the rotating groove; One end of the sliding rod is connected to a push rod, the push rod is slidably connected between the limiting plates, and the end of the push rod away from the sliding rod is fixedly connected to a push plate, and a grinding plate is provided on the outer side of the push plate; The positioning box is provided with a limit block on the side near the rotating disk, and a telescopic block is provided between the limit blocks. A limit rod is fixedly connected to one side of the telescopic block, and a positioning plate is slidably connected to the outside of the limit rod away from the telescopic block. The positioning plate is fixedly connected to one side of the rotating disk, and a spring is provided between the positioning plate and the telescopic block.

[0007] Optionally, the rotating groove is an arc-shaped groove, and the rotating groove is distributed circumferentially inside the rotating disk.

[0008] Optionally, the limiting plate is fixedly connected inside the positioning box, and the limiting plate is used to restrict the movement direction of the push rod.

[0009] Optionally, the surface of the polishing plate is provided with a polishing layer.

[0010] Optionally, the cross-section of the telescopic block has a trapezoidal structure.

[0011] Optionally, the spring is used to push the telescopic block into the space between the limiting blocks.

[0012] Optionally, the rotation of the rotating disk can drive the push rod to move radially, thereby adjusting the expansion diameter of the grinding plate.

[0013] In summary, this application includes at least one of the following beneficial technical effects: This utility model uses a rotating disc that drives a sliding rod and a pushing rod to slide between the limiting plates via a rotating groove. This allows the pushing rod to drive the pushing plate and the grinding plate to expand, thus enabling the grinding plate to grind the inner wall of the pipe. This improves the adaptability of the grinding plate to pipes of different inner diameters and enhances the fit of the grinding plate to the inner walls of different pipes. Attached Figure Description

[0014] Figure 1 A schematic diagram of a pipe inner wall spraying device is provided. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the push rod structure; Figure 6 for Figure 5 Enlarged diagram of point C in the middle.

[0015] Figure label: 1. Rotating spray bar; 2. Positioning ring; 3. Threaded sleeve; 4. Positioning box; 5. Rotating disc; 6. Rotating groove; 7. Sliding rod; 8. Push rod; 9. Limiting plate; 10. Push plate; 11. Grinding plate; 12. Telescopic block; 14. Positioning plate; 15. Limiting rod; 16. Limiting block; 23. Spring. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0021] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the present invention proposes a pipe inner wall spraying device, including a rotating spraying rod 1, a positioning ring 2 on the outside of the rotating spraying rod 1, and a threaded sleeve 3 threadedly connected to the outside of the positioning ring 2. The threaded sleeve 3 rotates outside the positioning ring 2, thereby fixing the threaded sleeve 3 to the rotating paint spraying structure. A positioning box 4 is fixedly connected to the outside of the rotating spraying rod 1, and a rotating disk 5 is rotatably connected inside the positioning box 4. A rotating groove 6 is opened on the surface of the rotating disk 5, and a sliding rod 7 is slidably connected inside the rotating groove 6. The rotating disk 5 can push the sliding rod 7 to slide through the rotating groove 6 inside the rotating disk 5. A push rod 8 is connected to one end of the sliding rod 7, and the sliding rod 7 can drive the push rod 8 to move. A push plate 10 is fixedly connected to the end of the push rod 8 away from the sliding rod 7. A grinding plate 11 is provided on the outside of the push plate 10, and the push rod 8 can push the push plate 10 to make the grinding plate 11 fit against the inner wall of the pipe.

[0022] For further details, please refer to Figure 1 , Figure 3 and Figure 5 The surface of the grinding plate 11 is provided with a grinding layer, which can grind the inner wall of the pipe more finely. The rotating groove 6 is an arc-shaped groove. The arc structure of the rotating groove 6 can push the sliding rod 7 to drive the push rod 8 to extend out from the inside of the positioning box 4. The rotating groove 6 is circumferentially distributed inside the rotating disk 5. The rotation of the rotating disk 5 can drive the push rod 8 to move radially, thereby adjusting the expansion diameter of the grinding plate 11. The push rod 8 is slidably connected between the limiting plates 9. The limiting plates 9 are fixedly connected inside the positioning box 4. The limiting plates 9 are used to limit the movement direction of the push rod 8.

[0023] For further details, please refer to Figure 1 and Figure 2 A limiting block 16 is provided on the side of the positioning box 4 near the rotating disk 5. A telescopic block 12 is provided between the limiting blocks 16. The telescopic block 12 can restrict the position between the limiting blocks 16. A limiting rod 15 is fixedly connected to one side of the telescopic block 12. A positioning plate 14 is slidably connected to the outside of the limiting rod 15 away from the telescopic block 12. The limiting rod 15 can restrict the position of the telescopic block 12 inside the positioning plate 14, thereby restricting the rotating disk 5. The positioning plate 14 is fixedly connected to one side of the rotating disk 5. A spring 23 is provided between the positioning plate 14 and the telescopic block 12. The cross-section of the telescopic block 12 is trapezoidal. The trapezoidal structure of the telescopic block 12 facilitates its rotation between the limiting blocks 16. The spring 23 is used to push the telescopic block 12 into the space between the limiting blocks 16.

[0024] In this embodiment, when spraying the inner wall of the pipe, the threaded sleeve 3 is rotated outside the positioning ring 2, thereby fixing the threaded sleeve 3 with the rotating paint spraying structure. At this time, the rotating spraying rod 1 can spray the inner wall of the pipe. When the rotating spraying rod 1 rotates, it will drive the positioning box 4 and the push rod 8 to drive the push plate 10 and the grinding plate 11 to grind the inner wall of the pipe, so that the inner wall of the pipe can be sprayed and ground at the same time.

[0025] When grinding pipes of different inner diameters, the rotating disk 5 is rotated, causing the rotating groove 6 to rotate, which in turn causes the sliding rod 7 to slide inside the rotating groove 6. In this way, the sliding rod 7 can drive the push rod 8 to slide between the limiting plates 9, so that the push rod 8 can be pushed out from inside the positioning box 4, thereby allowing the grinding plate 11 to fit against the inner wall of the pipes of different inner diameters.

[0026] To prevent the grinding plate 11 and the push plate 10 from being subjected to force, causing the push rod 8 to retract and the rotating disk 5 to rotate, the telescopic block 12 can be fixed between the limiting blocks 16 to fix the position of the rotating disk 5. The telescopic block 12 is fixed by the limiting rod 15 and the positioning plate 14. When the rotating disk 5 rotates, the telescopic block 12 will slide outside the limiting block 16 due to its trapezoidal structure, and the plane of the telescopic block 12 will stably fix the rotating disk 5.

[0027] When the telescopic block 12 is embedded between the limiting blocks 16, the spring 23 can push the telescopic block 12 between the limiting blocks 16 on one side of the positioning plate 14, thereby restricting the rotation of the rotating disk 5. When the rotating disk 5 drives the rotating groove 6 to open the control push rod 8, it can push the telescopic block 12 to disengage from the limiting blocks 16, so that the rotating disk 5 can rotate smoothly, thereby allowing the grinding plate 11 to complete the extended grinding effect.

[0028] It should be noted that this device uses a rotating disk 5 to drive the sliding rod 7 and the pushing rod 8 to slide between the limiting plate 9 via the rotating groove 6. This allows the pushing rod 8 to drive the pushing plate 10 and the grinding plate 11 to expand, thus allowing the grinding plate 11 to grind the inner wall of the pipe. This improves the adaptability of the grinding plate 11 to pipes with different inner diameters and enhances the fit of the grinding plate 11 to the inner wall of different pipes.

[0029] The above-described specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A pipe inner wall spraying device, comprising a rotating spraying rod (1), wherein a positioning ring (2) is provided on the outside of the rotating spraying rod (1), and a threaded sleeve (3) is threadedly connected to the outside of the positioning ring (2); characterized in that, The rotating spraying rod (1) is fixedly connected to a positioning box (4) on the outside. A rotating disk (5) is rotatably connected inside the positioning box (4). A rotating groove (6) is opened on the surface of the rotating disk (5). A sliding rod (7) is slidably connected inside the rotating groove (6). One end of the sliding rod (7) is connected to a push rod (8), which is slidably connected between the limiting plates (9). The end of the push rod (8) away from the sliding rod (7) is fixedly connected to a push plate (10), and a grinding plate (11) is provided on the outside of the push plate (10). The positioning box (4) is provided with a limit block (16) on the side near the rotating disk (5). A telescopic block (12) is provided between the limit blocks (16). A limit rod (15) is fixedly connected to one side of the telescopic block (12). A positioning plate (14) is slidably connected to the outside of the limit rod (15) away from the telescopic block (12). The positioning plate (14) is fixedly connected to one side of the rotating disk (5). A spring (23) is provided between the positioning plate (14) and the telescopic block (12).

2. The pipe inner wall spraying device according to claim 1, characterized in that, The rotating groove (6) is an arc-shaped groove, and the rotating groove (6) is distributed circumferentially inside the rotating disk (5).

3. The pipe inner wall spraying device according to claim 1, characterized in that, The limiting plate (9) is fixedly connected inside the positioning box (4), and the limiting plate (9) is used to limit the movement direction of the push rod (8).

4. The pipe inner wall spraying device according to claim 1, characterized in that, The surface of the grinding plate (11) is provided with a grinding layer.

5. A pipe inner wall spraying device according to claim 1, characterized in that, The cross-section of the telescopic block (12) is trapezoidal.

6. The pipe inner wall spraying device according to claim 1, characterized in that, The spring (23) is used to push the telescopic block (12) into the space between the limiting blocks (16).

7. A pipe inner wall spraying device according to claim 1, characterized in that, The rotation of the rotating disk (5) can drive the push rod (8) to move radially, thereby adjusting the expansion diameter of the grinding plate (11).

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