Cleaning device for inner wall of polyurethane thermal insulation pipe
By introducing airbags and pressure sensors into the cleaning device for the inner wall of polyurethane insulated pipes, adaptability to different pipe diameters and precise pressure control are achieved, solving the problems of applicability and crude pressure control of existing devices, and ensuring cleaning effect and pipe safety.
Patent Information
- Application Number
- CN202520399213.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing polyurethane insulation pipe inner wall cleaning devices have poor applicability and crude cleaning pressure control, which can easily damage the pipe or result in incomplete cleaning.
A cleaning device comprising an airbag, a spring, and a pressure sensor was designed. By flexibly adjusting the airbag and monitoring the pressure sensor in real time, and in conjunction with the controller controlling the solenoid valve to adjust the cleaning pressure, the device achieves adaptability to different pipe diameters and precise pressure control.
It achieves efficient cleaning of polyurethane insulated pipes of different diameters, avoids damage to the inner wall of the pipe due to excessive cleaning pressure, and ensures the cleaning effect.
Smart Images
Figure CN223932179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe cleaning technology, specifically a cleaning device for the inner wall of polyurethane insulated pipes. Background Technology
[0002] Polyurethane insulated pipes are widely used in heating, petrochemical, and other fields. Their inner walls are prone to scale, rust, and other impurities, affecting transport efficiency and pipe lifespan. Traditional mechanical cleaning techniques have poor adaptability to pipe diameters; the same equipment often can only handle one type of pipe. Furthermore, the cleaning pressure control is crude, lacking effective pressure control and adjustment methods. Excessive cleaning pressure can damage the inner wall of the pipe, while insufficient pressure fails to achieve the desired cleaning effect. Therefore, it is essential to develop a polyurethane insulated pipe inner wall cleaning device capable of cleaning pipes of different diameters and precisely controlling the cleaning pressure. Utility Model Content
[0003] To address the above technical problems, this utility model provides a polyurethane insulated pipe inner wall cleaning device that can clean pipes of different diameters and precisely control the cleaning pressure, thereby solving the problems of poor applicability and coarse control of cleaning pressure in existing pipe cleaning devices.
[0004] To solve the above-mentioned technical problems, the present invention provides a polyurethane insulation pipe inner wall cleaning device, comprising a frame, several support components fixedly connected to the bottom of the frame, a motor fixedly connected to one side of the frame, a rotating shaft fixedly connected to the output shaft of the motor passing through the frame, a support box fixedly connected to the other end of the rotating shaft, a traveling mechanism connected to the support box, a support block connected to the output end of the traveling mechanism, several springs fixedly connected to the center of the support block, airbags fixedly connected to both sides of the springs, the airbags communicating with solenoid valves through connecting pipes, the input ends of several solenoid valves communicating with the output ends of air pumps through air supply pipes, the air pump fixedly connected to the support block, a brush strip detachably connected to the other end of the springs and the airbags through a support plate, a pressure sensor fixedly connected to the connection between the airbags and the support plate, the pressure sensor communicating with a controller, the controller fixedly connected to the frame, and the solenoid valves, air pump, and motor controlled by the controller.
[0005] Furthermore, the walking mechanism includes a servo motor, a screw, and a slide bar. The servo motor is fixedly connected inside the support box, and the output shaft of the servo motor passes through the support box and is fixedly connected to the screw. A slide bar, which is arranged parallel to the screw, is also fixedly connected to the support box. A support block is threadedly connected to the screw, and the support block is slidably connected to the slide bar.
[0006] Furthermore, the hosting component includes a U-shaped block and an electric telescopic rod. The bottom two sides of the U-shaped block are fixedly connected to the output end of the electric telescopic rod, and the other end of the electric telescopic rod is fixedly connected to the frame.
[0007] Furthermore, the main body of the support block includes a main block and an auxiliary block, which are two cuboids of different sizes. The auxiliary block is a smaller cuboid and is closer to the motor. The air pump is fixedly connected to the auxiliary block, and the air supply pipe is detachably connected to the contact side of the main block and the auxiliary block.
[0008] Furthermore, the main body of the frame is L-shaped, the motor is fixedly connected to the vertical side, and the hosting assembly is fixedly connected to the horizontal side.
[0009] This utility model has the following advantages compared with the prior art:
[0010] This invention utilizes a flexible inflatable and deflated air bladder at the bottom of the brush bar, in conjunction with a spring, to allow for flexible adjustment of the brush bar position to accommodate pipes of different diameters, thus improving the applicability of the device. By installing a pressure sensor on one side of the air bladder, the contact pressure between the brush bar and the pipe wall can be monitored in real time. In conjunction with the controller, the opening and closing of the solenoid valve can be controlled to adjust this pressure in a timely manner, ensuring the cleaning effect while avoiding damage to the inner wall of the pipe due to excessive cleaning pressure. Attached Figure Description
[0011] Figure 1 This is a side view of the present invention.
[0012] Figure 2 This is a partial sectional view of the support block of this utility model.
[0013] Figure 3 This is a schematic diagram of the U-shaped block structure of this utility model.
[0014] In the diagram: 1. Frame, 2. Motor, 3. Screw, 4. Support block, 5. Spring, 6. Airbag, 7. Solenoid valve, 8. Air pump, 9. Air supply pipe, 10. Pressure sensor, 11. Brush bar, 12. Controller, 13. U-shaped block, 14. Electric telescopic rod, 15. Servo motor, 16. Rotating shaft, 17. Slide rod. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] like Figure 1 , Figure 2 , Figure 3The device for cleaning the inner wall of a polyurethane insulated pipe shown includes a frame 1. Several support components are fixedly connected to the bottom of the frame 1. A motor 2 is fixedly connected to one side of the frame 1. The output shaft of the motor 2 passes through the frame 1 and is fixedly connected to a rotating shaft 16. A support box is fixedly connected to the other end of the rotating shaft 16. A walking mechanism is connected to the support box. A support block 4 is connected to the output end of the walking mechanism. Several springs 5 are fixedly connected to the center of the support block 4. Airbags 6 are fixedly connected to both sides of the springs 5. The airbags 6 are connected to solenoid valves 7 through connecting pipes. The input ends of the several solenoid valves 7 are connected to the output ends of air pumps 8 through air supply pipes 9. The air pump 8 is fixedly connected to the support block 4. A brush strip 11 is detachably connected to the other end of the springs 5 and the airbags 6 through a support plate. A pressure sensor 10 is fixedly connected to the connection between the airbags 6 and the support plate. The pressure sensor 10 is communicatively connected to a controller 12. The controller 12 is fixedly connected to the frame 1. The solenoid valves 7, the air pump 8, and the motor 2 are controlled by the controller 12.
[0017] To ensure that the device can thoroughly clean the pipe along the pipe diameter, the walking mechanism includes a servo motor 15, a screw 3, and a slide rod 17. The servo motor 15 is fixedly connected inside the support box, and the output shaft of the servo motor 15 passes through the support box and is fixedly connected to the screw 3. To ensure the stable operation of the device, the rotating shaft 16 is aligned with the center line of the screw 3. The slide rod 17, which is parallel to the screw 3, is also fixedly connected to the support box. A support block 4 is threaded onto the screw 3, and the support block 4 is slidably connected to the slide rod 17.
[0018] To ensure the stability of the pipes during the cleaning process, the support assembly includes a U-shaped block 13 and an electric telescopic rod 14. The bottom two sides of the U-shaped block 13 are fixedly connected to the output end of the electric telescopic rod 14, and the other end of the electric telescopic rod 14 is fixedly connected to the frame 1.
[0019] To ensure the stability and reliability of the device, the support block 4 consists of a main block and an auxiliary block, which are two cuboids of different sizes. The auxiliary block is a smaller cuboid and is closer to the motor 2. The air pump 8 is fixedly connected to the auxiliary block, and the air supply pipe 9 is detachably connected to the contact side of the main block and the auxiliary block. The frame 1 is L-shaped, with the motor 2 fixedly connected to the vertical side and the support assembly fixedly connected to the horizontal side.
[0020] The working process of this embodiment is as follows:
[0021] Insert the screw 3 and the cleaning body into the pipe to be cleaned. Adjust the height of the entire support assembly to the appropriate position on the pipe by changing the extension length of the electric telescopic rod 14. The pressure sensor 10 detects the pressure generated by the airbag 6 on the brush strip 11. If the pressure is greater than the preset value, control the air pump 8 and the solenoid valve 7 to open and inflate the airbag 6 until the brush strip 11 contacts the pipe wall and the pressure sensor 10 value is the same as the preset value. If the pressure is less than the preset value, control the solenoid valve 7 to release some of the gas inside the airbag 6 until the pressure sensor 10 value is the same as the preset value to adjust the position of the brush strip 11. After the position of the brush strip 11 is properly adjusted, start the motor 2 to drive the entire cleaning assembly to rotate, and start the servo motor 15 to drive the screw 3 to rotate. At this time, the support block 4 moves along the direction of the slide rod 17, that is, along the direction of the pipe, so that the entire pipe wall can be cleaned. After cleaning, the airbag 6 is deflated, the brush strip 11 separates from the inner wall of the pipe, and can be removed from the pipe.
Claims
1. A device for cleaning the inner wall of a polyurethane insulated pipe, characterized in that: Includes a frame (1), with several support components fixedly connected to the bottom of the frame (1). A motor (2) is fixedly connected to one side of the frame (1). The output shaft of the motor (2) passes through the frame (1) and is fixedly connected to a rotating shaft (16). A support box is fixedly connected to the other end of the rotating shaft (16). A walking mechanism is connected to the support box. A support block (4) is connected to the output end of the walking mechanism. Several springs (5) are fixedly connected to the center of the support block (4). Airbags (6) are fixedly connected to both sides of the springs (5). The airbags (6) are connected to a solenoid valve (7) through a connecting pipe. If The input end of the solenoid valve (7) is connected to the output end of the air pump (8) through an air supply pipe (9). The air pump (8) is fixedly connected to the support block (4). The spring (5) and the other end of the air bag (6) are detachably connected to a brush strip (11) through a support plate. A pressure sensor (10) is fixedly connected to the connection between the air bag (6) and the support plate. The pressure sensor (10) is communicatively connected to the controller (12). The controller (12) is fixedly connected to the frame (1). The solenoid valve (7), the air pump (8), and the motor (2) are controlled by the controller (12).
2. The polyurethane insulation pipe inner wall cleaning device according to claim 1, characterized in that: The walking mechanism includes a servo motor (15), a screw (3), and a slide rod (17). The servo motor (15) is fixedly connected inside the support box. The output shaft of the servo motor (15) passes through the support box and is fixedly connected to the screw (3). The slide rod (17) is also fixedly connected to the support box and is parallel to the screw (3). A support block (4) is threadedly connected to the screw (3), and the support block (4) is slidably connected to the slide rod (17).
3. The polyurethane insulation pipe inner wall cleaning device according to claim 1, characterized in that: The hosting component includes a U-shaped block (13) and an electric telescopic rod (14). The bottom two sides of the U-shaped block (13) are fixedly connected to the output end of the electric telescopic rod (14), and the other end of the electric telescopic rod (14) is fixedly connected to the frame (1).
4. The polyurethane insulation pipe inner wall cleaning device according to claim 1, characterized in that: The main body of the support block (4) includes a main block and an auxiliary block. The main block and the auxiliary block are two cuboids of different sizes. The auxiliary block is a smaller cuboid and is closer to the motor (2). The air pump (8) is fixedly connected to the auxiliary block. The air pipe (9) is detachably connected to the contact side of the main block and the auxiliary block.
5. The polyurethane insulation pipe inner wall cleaning device according to claim 1, characterized in that: The frame (1) is L-shaped, the motor (2) is fixedly connected to the vertical side, and the support assembly is fixedly connected to the horizontal side.