Inner wall coating device for pipeline

Abstract

The utility model provides an inner wall coating device for a pipeline, which comprises a turntable, a telescopic device and a liquid storage bin, the outer side of the turntable is connected with a motor, a motor shaft of the motor is fixedly connected with the outer side of the turntable, the telescopic device comprises a fixed shell and a telescopic rod, one end of the fixed shell is fixedly connected with the turntable, and the telescopic rod is slidably connected in the fixed shell. One end of the telescopic rod away from the turntable is fixedly connected with the liquid storage bin; the other end of the liquid storage bin is fixedly connected with a liquid outlet pipe, the liquid outlet pipe is communicated with the interior of the liquid storage bin, the outer surface of the liquid outlet pipe is elastically connected with a plurality of wiping heads in the circumferential direction of the liquid outlet pipe, and communicating pipes are arranged between the wiping heads and the liquid outlet pipe in a communicating mode. The problems that coating on the inner wall of the pipeline is inconvenient and uneven are solved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline wall anticorrosive material spraying, in particular to an inner wall coating device for pipelines. Background Art

[0002] During the production, assembly, use and maintenance of pipelines, it is often necessary to apply anti-corrosion materials to the inner wall of the pipeline to alleviate the corrosion effects on the pipeline during use.

[0003] However, due to the limitations of the pipe shape, it is difficult for construction workers to enter the pipes with smaller opening diameters to apply paint to the inner walls. On the one hand, this increases the difficulty of the construction workers' application work, and on the other hand, it also makes it difficult to apply the paint evenly, further affecting the application effect. This wastes raw material costs and also affects the anti-corrosion effect.

[0004] For some pipe inner walls that are not smooth in shape, such as those with multiple depressions and protrusions caused by production design or use, it is more difficult for the coating to fit the inner wall of the pipe, further affecting the coating effect of the pipe. Utility Model Content

[0005] The utility model provides a pipe inner wall coating device to solve the problems of inconvenient and uneven coating of the pipe inner wall coating.

[0006] The utility model discloses an inner wall coating device for pipelines, comprising: a turntable, a telescopic device, and a liquid storage tank, wherein a motor is connected to the outer side of the turntable, and a motor shaft of the motor is fixedly connected to the outer side of the turntable, the telescopic device comprises a fixed shell and a telescopic rod, one end of the fixed shell is fixedly connected to the turntable, the telescopic rod is slidably connected in the fixed shell, and one end of the telescopic rod away from the turntable is fixedly connected to the liquid storage tank; the other end of the liquid storage tank is fixedly connected to a liquid outlet pipe, the liquid outlet pipe is communicated with the inside of the liquid storage tank, a plurality of wiping heads are elastically connected to the outer surface of the liquid outlet pipe along the circumferential direction of the liquid outlet pipe, and a connecting pipe is arranged between the wiping head and the liquid outlet pipe.

[0007] Among them, the wiping head includes an inner warehouse and an outer warehouse, and the inner warehouse and the outer warehouse are both warehouse bodies with an opening at one end. The inner warehouse is arranged in the outer warehouse through the opening of the outer warehouse and is slidably connected with the outer warehouse. One end of the inner warehouse protrudes from the outer warehouse, and a connecting cavity and a communicating cavity are opened between the outer warehouse and the inner warehouse. A second elastic rod is arranged in the connecting cavity, and the two ends of the second elastic rod are respectively fixedly connected to the outer wall of the inner warehouse and the inner wall of the outer warehouse.

[0008] Wherein, a connecting port is opened at the top of the inner warehouse, and the connecting port is connected with the warehouse body of the inner warehouse.

[0009] Wherein, one end of the outer bin opening is fixedly connected with cleaning fleece along the side wall of the outer bin, and the length of the cleaning fleece is greater than or equal to the length of the inner bin protruding from the outer bin.

[0010] Wherein, a first elastic rod is arranged between each of the wiping heads and the liquid outlet pipe, and two ends of the first elastic rod are fixedly connected to the wiping head and the liquid outlet pipe respectively.

[0011] Wherein, the liquid storage bin is connected to a liquid inlet pipe.

[0012] Wherein, the communicating tube is communicated with the communicating cavity.

[0013] The beneficial effects of the utility model are:

[0014] For pipes with smaller opening diameters, the driver pushes the liquid storage bin and the liquid inlet pipe into the pipe, and with the turntable that can rotate at a constant speed, the coating head can be used to evenly coat the inner wall of the pipe.

[0015] Under the support of the first elastic rod, even if the inner wall of the pipeline is uneven, the wiping head can be closely fitted to the inner wall of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : A three-dimensional diagram of the utility model;

[0017] Figure 2 : A three-dimensional diagram of the inner compartment structure of the wiping head of the utility model;

[0018] Figure 3 : Schematic diagram of the structure of the wiping head of the utility model.

[0019] Description of Reference Numerals

[0020] 1. Turntable; 2. Telescopic device; 21. Fixed shell; 22. Telescopic rod; 3. Liquid storage tank; 31. Liquid inlet pipe; 4. Liquid outlet pipe; 41. First elastic rod; 42. Connecting pipe; 5. Wiping head; 51. External tank; 511. Connecting cavity; 512. Connecting cavity; 513. Barrier plug; 52. Internal tank; 521. Connecting port; 53. Second elastic rod; 54. Cleaning fleece. DETAILED DESCRIPTION

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings as follows:

[0022] The utility model proposes a pipeline inner wall coating device, referring to Figure 1As shown, it mainly includes: a turntable 1, a telescopic device 2, and a liquid storage tank 3. A motor (not marked in the figure) is connected to the outside of the turntable 1. The motor shaft of the motor is fixedly connected to the outer axis part of the turntable 1, and the turntable 1 is driven to rotate at a constant speed by the motor.

[0023] The telescopic device 2 includes a fixed shell 21 and a telescopic rod 22. The telescopic rod 22 can be telescoped along the axial direction according to electric drive. One end of the fixed shell 21 is fixedly connected to the turntable 1, and the telescopic rod 22 is slidably connected in the fixed shell 21. The end of the telescopic rod 22 away from the turntable 1 is fixedly connected to the liquid storage tank 3, and the liquid storage tank 3 slides according to the telescopic action of the telescopic rod 22.

[0024] The other end of the liquid storage bin 3 is fixedly connected to a liquid outlet pipe 4, which is in communication with the interior of the liquid storage bin 3. A plurality of first elastic rods 41 are arranged on the outer surface of the liquid outlet pipe 4 along the circumferential direction of the liquid outlet pipe 4. One end of each first elastic rod 41 is fixedly connected to the outer wall of the liquid outlet pipe 4, and the other end is fixedly connected to a coating head 5. The first elastic rod 41 generates a thrust on the coating head 5, ensuring that the coating head 5 can fit tightly with the inner wall of the pipe regardless of whether there is a depression or a protrusion inside the pipe.

[0025] Please refer to Figure 2-Figure 3 As shown, the wiping head 5 includes an inner bin 52 and an outer bin 51. Both the inner bin 52 and the outer bin 51 are bin bodies with an opening at one end. The inner bin 52 is arranged in the outer bin 51 through the opening of the outer bin 51 and is slidably connected to the outer bin 51. A connecting cavity 512 and a communicating cavity 511 are provided between the outer bin 51 and the inner bin 52.

[0026] The top and three sides of the connecting cavity 511 are the inner walls of the outer bin 51, and the bottom of the connecting cavity 511 is the outer wall of the inner bin 52. A blocking plug 513 is fixedly arranged between the inner bin 52 and the outer bin 51 at the opening position of the connecting cavity 511. The blocking plug 513, the inner bin 52 and the outer bin 51 are surrounded by the connecting cavity 511. A connecting tube 42 is arranged between the connecting cavity 511 and the liquid outlet pipe 4. The paint flows from the liquid outlet pipe 4 into the connecting cavity 511 of each coating head 5 through multiple connecting tubes 42. The connecting tube 42 is made of a hose material and can be deformed following the extension and contraction of the first elastic rod 41.

[0027] A second elastic rod 53 is arranged in the connecting chamber 512, and the two ends of the second elastic rod 53 are fixedly connected to the outer wall of the inner chamber 52 and the inner wall of the outer chamber 51, respectively. The end of the inner chamber 52 away from the liquid outlet pipe 4 is the outer end, and a connecting port 521 is provided at the top of the inner chamber 52, and the connecting port 521 is arranged near the outer end of the inner chamber 52. The inner chamber 52 is squeezed by the squeezing force of the inner wall of the pipeline, and the connecting port 521 is moved to the bottom of the connecting chamber 511, and is connected with the connecting chamber 511, so that the paint in the connecting chamber 511 flows into the inner chamber 52. At the same time, under the elastic support of the second elastic rod 53, the outer end of the inner chamber 52 fits more closely with the inner wall of the pipeline, and the elastic force of the second elastic rod 53 and the squeezing of the pipeline can keep the connecting port 521 in the connecting position with the connecting chamber 511.

[0028] One end of the opening of the outer bin 51 is fixedly connected with a cleaning fleece 54 along the side wall of the outer bin 51 , and the paint flowing out of the inner bin 52 will adhere to the surrounding cleaning fleece 54 and be evenly smeared on the inner wall of the pipe through the cleaning fleece 54 to complete the paint smearing operation.

[0029] The working process of the utility model is:

[0030] The paint is filled into the liquid storage tank 3 through the liquid inlet pipe 31 , the inlet pipe 31 is disconnected and closed, and the paint in the liquid storage tank 3 flows into the liquid outlet pipe 4 , and finally flows into the connecting cavities 511 of different coating heads 5 through multiple connecting pipes 42 .

[0031] The liquid outlet pipe 4 is placed at the pipe opening of the corresponding pipe, and the wiping head 5 is tightly fitted with the pipe wall under the dual elastic support of the first elastic rod 41 and the second elastic rod 53, and the turntable 1 and the telescopic device 2 are started to make the liquid outlet pipe 4 rotate and advance at a uniform speed.

[0032] The inner bin 52 is squeezed inward by the pipe wall, so that the inner bin 52 is connected with the connecting cavity 511 through the connecting port 521 , and the paint flows out from the opening of the inner bin 52 and adheres to the cleaning fleece 54 , and is rubbed on the inner wall of the pipe.

[0033] In this embodiment, in order to facilitate observation of the structure, a cleaning fleece 54 is only provided outside a wiping head 5, and only part of the second elastic rod 53 and the wiping head 5 and other structures are drawn. The specific arrangement and quantity of the structure here depend on the specific situation and are not limited in this application.

Claims

1. A pipe inner wall coating device, characterized in that: include: A turntable (1), a telescopic device (2), and a liquid storage bin (3), wherein the outer side of the turntable (1) is connected to a motor, and the motor shaft of the motor is fixedly connected to the outer side of the turntable (1); the telescopic device (2) comprises a fixed shell (21) and a telescopic rod (22); one end of the fixed shell (21) is fixedly connected to the turntable (1), the telescopic rod (22) is slidably connected in the fixed shell (21), and the end of the telescopic rod (22) away from the turntable (1) is fixedly connected to the liquid storage bin (3); The other end of the liquid storage bin (3) is fixedly connected to a liquid outlet pipe (4), the liquid outlet pipe (4) is in communication with the interior of the liquid storage bin (3), a plurality of wiping heads (5) are elastically connected to the outer surface of the liquid outlet pipe (4) along the circumferential direction of the liquid outlet pipe (4), and a connecting pipe (42) is provided between the wiping heads (5) and the liquid outlet pipe (4).

2. A pipe inner wall coating device as claimed in claim 1, characterized in that: The wiping head (5) comprises an inner bin (52) and an outer bin (51); the inner bin (52) and the outer bin (51) are both bin bodies with an opening at one end; the inner bin (52) is arranged in the outer bin (51) through the opening of the outer bin (51) and is slidably connected to the outer bin (51); one end of the inner bin (52) protrudes from the outer bin (51); a connecting cavity (512) and a communicating cavity (511) are provided between the outer bin (51) and the inner bin (52); a second elastic rod (53) is provided in the connecting cavity (512); two ends of the second elastic rod (53) are respectively fixedly connected to the outer wall of the inner bin (52) and the inner wall of the outer bin (51).

3. A pipe inner wall coating device as claimed in claim 2, characterized in that: A communication opening (521) is provided at the top of the inner warehouse (52), and the communication opening (521) is connected to the warehouse body of the inner warehouse (52).

4. A pipe inner wall coating device as claimed in claim 3, characterized in that: One end of the opening of the outer bin (51) is fixedly connected with a cleaning fleece (54) along a side wall of the outer bin (51); the length of the cleaning fleece (54) is greater than or equal to the length of the inner bin (52) protruding from the outer bin (51).

5. A pipe inner wall coating device as claimed in claim 1, characterized in that: A first elastic rod (41) is provided between each of the wiping heads (5) and the liquid outlet pipe (4), and two ends of the first elastic rod (41) are fixedly connected to the wiping head (5) and the liquid outlet pipe (4), respectively.

6. A pipe inner wall coating device as claimed in claim 1, characterized in that: The liquid storage bin (3) is connected to a liquid inlet pipe (31).

7. A pipe inner wall coating device as claimed in claim 2, characterized in that: The connecting pipe (42) is connected to the connecting cavity (511).

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