Rust-proof treatment device for interior of stainless steel pipe

By using a three-axis synchronous telescopic and drive mechanism, combined with an electric pump and a servo motor, the internal wall of stainless steel pipes can be automatically cleaned and painted, solving the problems of high cost and inconvenience of operation of traditional protection methods, and improving the uniformity and effect of painting.

CN224025434UActive Publication Date: 2026-03-24SHANGHAI ZIYING PRESSURE VESSEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing stainless steel pipes are prone to pitting corrosion and intergranular corrosion in high temperature and humidity, strong acid/alkali, halide ion-containing or stress corrosion environments. Traditional protection methods, such as upgrading to special alloy materials, are costly, passivation treatment processes are complex and difficult to maintain, and existing spray painting anti-corrosion devices are inconvenient to operate and easily affected by stains.

Method used

The system employs a three-axis synchronous telescopic and drive mechanism, combined with an electric pump and a servo motor, to achieve automated cleaning and painting of the inner wall of stainless steel pipes. The cooperation between the electric telescopic rod and the cleaning plate ensures the painting effect, and the telescopic mechanism moves inside the pipe to reduce the impact force on the uneven inner wall.

Benefits of technology

It achieves automated rust prevention treatment of the inner wall of stainless steel pipes, improves the uniformity and effect of painting, reduces the difficulty of operation and maintenance costs, and avoids the impact of stains.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a stainless steel pipe interior rust-proof treatment device which comprises a treatment device body, a three-axis synchronous telescopic mechanism is arranged on the treatment device body, and a rust-proof treatment mechanism used for paint spraying and a driving mechanism are arranged at the front end of the treatment device body. The driving mechanism is used for driving the dynamic anti-rust treatment mechanism to rotate, the inner wall of the stainless steel pipeline can be cleaned and painted, the telescopic mechanism can be used for driving the treatment device to move in the pipeline, and automatic anti-rust treatment is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stainless steel pipeline production technical field especially, relates to a kind of stainless steel pipe internal rust-proof treatment device. BACKGROUND

[0002] Although stainless steel pipeline is dependent on passivation film corrosion resistance, it is still prone to pitting, intergranular corrosion and other problems in high temperature and high humidity, strong acid / alkali, halogen ion-containing or stress corrosion environment. Traditional protection means such as upgrading special alloy material (such as duplex steel) is high in cost, and passivation process is complex and difficult to maintain. In recent years, by referring to carbon steel corrosion prevention technology, physical barrier is formed by adopting inner wall paint spraying to become an economical alternative scheme, which can realize active protection by adding corrosion inhibition filler.

[0003] After searching, the patent with Chinese patent application number 202022607058.6 discloses a kind of pipeline internal automatic paint spraying anticorrosion device, it includes paint spraying ring, push tube;The inside of the paint spraying ring, push tube is hollow structure;At least one spray hole is formed in the paint spraying ring, and a nozzle is connected to the spray hole;One end of the push tube is communicated with the paint spraying ring, and the other end of the push tube is connected to the joint connected with the metal hose of paint storage device.The paint spraying anticorrosion device in the above patent has the following disadvantages: the position in the pipeline needs to be manually adjusted, which causes inconvenient operation, and the structure for cleaning is not set, so that the position of paint spraying is stained, which affects the anticorrosion effect of paint spraying. UTILITY MODEL CONTENT

[0004] The utility model aims at further setting to solve the shortcomings existing in prior art, and proposes a kind of stainless steel pipe internal rust-proof treatment device.

[0005] The device is further provided to achieve the above-mentioned purpose, and the utility model adopts the following technical solutions:

[0006] A kind of stainless steel pipe internal rust-proof treatment device, including processing device main body, three-axis synchronous telescopic mechanism is arranged on the processing device main body, rust-proof treatment mechanism for paint spraying and drive mechanism are provided at the front end of processing device main body, electric pump is installed at the front end of processing device main body, the drive mechanism includes mounting bracket, the mounting bracket is installed on the outer wall of processing device main body close to electric pump with C-shaped structure, first servo motor is installed on the mounting bracket, driving gear is installed on the output end of first servo motor penetrating mounting bracket, driven gear is rotatably installed at the output end of electric pump, the driven gear is annular structure, connecting frame is installed on the outer wall of driven gear away from electric pump, three-way pipe is installed on the driven gear.

[0007] As a further scheme of the utility model: the processing device further includes a material cylinder, the upper end of the material cylinder is provided with an inlet, the bottom is provided with an outlet and a support, and the bottom outlet of the material cylinder is connected with the processing device body through a hose.

[0008] As a further scheme of the utility model: the rust-proof treatment mechanism includes a first electric telescopic rod, the first electric telescopic rod is symmetrically installed on the connecting frame, a spray head is installed on the output end of the first electric telescopic rod, and the water inlet of the spray head is connected with the three-way pipe through a bellows.

[0009] As a further scheme of the utility model: the rust-proof treatment mechanism further includes a cleaning plate, the cleaning plate is installed on one side of the spray head through a support, the cleaning plate is located at the front end of the processing device, the upper end of the cleaning plate is provided with an arc surface, and sandpaper is arranged on the arc surface.

[0010] As a further scheme of the utility model: the telescopic mechanism includes a second electric telescopic rod, the second electric telescopic rod is symmetrically distributed at an angle of 120 degrees, a groove is formed in the output end of the second electric telescopic rod, and a guide rod is arranged in the groove.

[0011] As a further scheme of the utility model: the telescopic mechanism further includes a rotating frame, the rotating frame is installed at the end of the guide rod, a pulley is rotatably installed on the rotating frame, a second servo motor is installed on one side of the rotating frame, and the output end of the second servo motor is connected with the pulley.

[0012] As a further scheme of the utility model: the telescopic mechanism further includes a spring, the spring is arranged between the rotating frame and the output end of the second electric telescopic rod.

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

[0014] 1. by using drive mechanism and drive rust-proof treatment mechanism rotation, can clean and spray paint to the inner wall of stainless steel pipe, through using telescopic mechanism can drive processing device to move in the pipe, realizes automatic rust-proof treatment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model proposes a structure schematic view of a stainless steel pipe internal rust-proof treatment device;

[0016] Figure 2 The utility model proposes a structure schematic view of a drive mechanism;

[0017] Figure 3 The utility model proposes a structure schematic view of a rust-proof treatment mechanism;

[0018] Figure 4 The utility model provides a telescopic mechanism's structural schematic view.

[0019] In the drawing: 1 - processing device main body, 2 - telescopic mechanism, 3 - rustproof treatment mechanism, 4 - cylinder, 5 - hose, 6 - electric pump, 7 - mounting bracket, 8 - first servo motor, 9 - driving gear, 10 - driven gear, 11 - connecting frame, 12 - tee, 13 - first electric telescopic rod, 14 - spray head, 15 - cleaning plate, 16 - bellows, 17 - second electric telescopic rod, 18 - spring, 19 - rotating frame, 20 - pulley, 21 - second servo motor. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described in further detail in connection with specific embodiments.

[0021] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model.

[0022] A kind of stainless steel pipe interior rustproof treatment device, as shown in Figures 1-4 It includes processing device main body 1, processing device main body 1 is provided with telescopic mechanism 2 of three-axis synchronization, rustproof treatment mechanism 3 for spraying paint and drive mechanism are provided at the front end of processing device main body 1, electric pump 6 is installed at the front end of processing device main body 1, drive mechanism includes mounting bracket 7, mounting bracket 7 is installed on the outer wall of processing device main body 1 close to electric pump 6 and is in C-shaped structure, first servo motor 8 is installed on mounting bracket 7, driving gear 9 is installed on the output end of first servo motor 8 and penetrates mounting bracket 7, driven gear 10 is rotatably installed at the output end of electric pump 6, driven gear 10 is annular structure, connecting frame 11 is installed on the outer wall of driven gear 10 away from electric pump 6, tee 12 is installed on driven gear 10.

[0023] By using drive mechanism to drive rustproof treatment mechanism 3 to rotate, the inner wall of stainless steel pipeline can be cleaned and painted, and by using telescopic mechanism 2, the processing device can be moved in the pipeline to realize automatic rustproof treatment.

[0024] The device is further provided as shown in Figure 1 The processing device further includes cylinder 4, the upper end of cylinder 4 is provided with inlet, the bottom is provided with discharge port and support, and the bottom discharge port of cylinder 4 is connected with processing device main body 1 through hose 5.

[0025] The device is further provided as shown in Figure 3As shown, the rust-proof treatment mechanism 3 includes a first electric telescopic rod 13, which is symmetrically installed on the connecting frame 11, and the output end of the first electric telescopic rod 13 is installed with a spray head 14, and the water inlet of the spray head 14 is connected with the three-way pipe 12 through a corrugated pipe 16;

[0026] The rust-proof treatment mechanism 3 further includes a cleaning plate 15, which is installed on one side of the spray head 14 through a support, and the cleaning plate 15 is located at the front end of the treatment device, and the upper end of the cleaning plate 15 is provided with an arc surface, and the arc surface is provided with sandpaper. By adjusting the height of the spray head 14 and the cleaning plate 15 through the first electric telescopic rod 13, the cleaning plate 15 is attached to the inner wall of the stainless steel pipe, and by driving the rust-proof treatment mechanism 3 through the driving mechanism, the inside of the steel pipe is cleaned, the stains on the inner wall of the steel pipe are cleaned, and the effect of paint spraying is avoided. The effect of paint spraying is avoided, and the effect of paint spraying is avoided. The inside of the steel pipe is sprayed by using the spray head 14, and the inside of the steel pipe is prevented from being rust-proof treated.

[0027] The device is further provided as shown, Figure 4 The telescopic mechanism 2 includes a second electric telescopic rod 17, which is symmetrically distributed at an angle of 120°, and a groove is provided on the output end of the second electric telescopic rod 17, and a guide rod is provided in the groove;

[0028] The telescopic mechanism 2 further includes a rotating frame 19, which is installed at the end of the guide rod, and a pulley 20 is rotatably installed on the rotating frame 19, and a second servo motor 21 is installed on one side of the rotating frame 19, and the output end of the second servo motor 21 is connected with the pulley 20;

[0029] The telescopic mechanism 2 further includes a spring 18, which is provided between the output end of the second electric telescopic rod 17 and the rotating frame 19. By adjusting the position of the pulley 20 through the second electric telescopic rod 17, the pulley 20 is tightly attached to the inner wall of the stainless steel, and then the treatment device body 1 is moved in the inside of the stainless steel by using the second servo motor 21 to drive the pulley 20 to rotate. By providing the spring 18, the impact force caused by the unevenness of the inner wall of the pipe can be reduced.

[0030] Working principle: place the treatment device body 1 in the inside of the pipe, then control the first electric telescopic rod 13 and the second electric telescopic rod 17, so that the second electric telescopic rod 17 and the pulley 20 are tightly attached to the inner wall of the stainless steel pipe, then use the first servo motor 8 to drive the driving gear 9 to rotate, thereby driving the driven gear 10 to rotate, so that the cleaning plate 15 performs sanding cleaning on the inner wall of the stainless steel, and at the same time, the paint in the cartridge 4 is pumped into the spray head 14 through the hose 5 and the corrugated pipe 16 by using the electric pump 6, so that the spray head 14 sprays paint on the inner wall of the pipe, and at the same time, the treatment device body 1 is moved in the inside of the pipe by rotating the pulley 20 through the second servo motor 21.

[0031] The above is only the preferred specific implementation of the present application, and the part of the circuit control, signal control transmission, etc. without the creative labor can refer to the prior art, but the protection scope of the present application is not limited thereto, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rust-preventive treatment device for the inside of a stainless steel pipe comprising a treatment device main body (1), characterized by, The processing device body (1) is provided with a three-axis synchronous telescopic mechanism (2), a rust-proof treatment mechanism (3) for paint spraying and a driving mechanism are arranged at the front end of the processing device body (1), a motor pump (6) is installed at the front end of the processing device body (1), the driving mechanism comprises a mounting frame (7) which is installed on the outer wall of the processing device body (1) near the motor pump (6) in a C-shaped structure, a first servo motor (8) is installed on the mounting frame (7), a driving gear (9) is installed on the output end of the first servo motor (8) penetrating through the mounting frame (7), a driven gear (10) is rotatably installed on the output end of the motor pump (6), the driven gear (10) is in an annular structure, a connecting frame (11) is installed on the outer wall of the driven gear (10) away from the motor pump (6), and a three-way pipe (12) is installed on the driven gear (10).

2. The apparatus for rustproofing the inside of a stainless steel pipe according to claim 1, wherein The processing device further comprises a cylinder (4), the upper end of the cylinder (4) is provided with an inlet, the bottom is provided with an outlet and a support, and the bottom outlet of the cylinder (4) is connected with the processing device body (1) through a hose (5).

3. The apparatus for rustproofing the inside of a stainless steel pipe according to claim 2, wherein The rust-proof treatment mechanism (3) comprises a first electric telescopic rod (13), the first electric telescopic rod (13) is symmetrically installed on the connecting frame (11), a spray head (14) is installed on the output end of the first electric telescopic rod (13), and the water inlet of the spray head (14) is connected with the three-way pipe (12) through a corrugated pipe (16).

4. The apparatus for rustproofing the inside of a stainless steel pipe according to claim 3, wherein The rust-proof treatment mechanism (3) further comprises a cleaning plate (15), the cleaning plate (15) is installed on one side of the spray head (14) through a support, the cleaning plate (15) is located at the front end of the processing device, the upper end of the cleaning plate (15) is provided with an arc surface, and sandpaper is arranged on the arc surface.

5. The apparatus for rustproofing the inside of a stainless steel pipe according to claim 4, wherein The telescopic mechanism (2) comprises a second electric telescopic rod (17), the second electric telescopic rod (17) is symmetrically distributed at an angle of 120°, a groove is arranged on the output end of the second electric telescopic rod (17), and a guide rod is arranged in the groove.

6. The apparatus for rustproofing the inside of a stainless steel pipe according to claim 5, wherein The telescopic mechanism (2) further comprises a rotating frame (19), the rotating frame (19) is installed at the end of the guide rod, a pulley (20) is rotatably installed on the rotating frame (19), a second servo motor (21) is installed on one side of the rotating frame (19), and the output end of the second servo motor (21) is connected with the pulley (20).

7. The apparatus according to claim 6, wherein The telescopic mechanism (2) further comprises a spring (18), and the spring (18) is arranged between the rotating frame (19) and the output end of the second electric telescopic rod (17).

Citation Information

Patent Citations

  • Automatic paint spraying anti-corrosion device for interior of pipeline

    CN214637618U