Inner wall groove cleaning device for metal bellows

By designing a cleaning device with a cleaning mechanism and limiting components, the problem of low cleaning efficiency of the grooves on the inner wall of metal bellows is solved, achieving rapid limiting and efficient cleaning, and is suitable for simultaneous cleaning of multiple bellows.

CN224332995UActive Publication Date: 2026-06-09CHANGZHOU CHANGLIAN WAVE TUBE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU CHANGLIAN WAVE TUBE CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing cleaning devices for the inner wall grooves of metal corrugated pipes are inefficient and time-consuming in limiting operations, making it difficult to efficiently clean stains on the inner wall of metal corrugated pipes.

Method used

A cleaning device including a cleaning mechanism and a limiting component was designed. The device uses an electric cylinder, a motor, a transmission wheel, and a cleaning rod in conjunction with a limiting plate to limit and clean the metal bellows, enabling the simultaneous cleaning of multiple bellows.

Benefits of technology

It achieves rapid positioning and efficient cleaning of the inner wall of metal bellows, improving cleaning efficiency, simplifying positioning operations, and is suitable for simultaneous cleaning of multiple bellows.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of metal corrugated pipes, and in particular, it is a device for cleaning the inner wall grooves of metal corrugated pipes. The proposed solution includes a workbench and a cleaning mechanism and a limiting assembly mounted on the workbench. The cleaning mechanism includes an electric cylinder, a mounting frame, a motor, a transmission wheel, a transmission wheel, and a cleaning rod. This utility model drives the electric cylinder to move a connecting rod, which in turn moves the limiting plate towards the metal corrugated pipe, thus clamping and limiting the metal corrugated pipe from the outside. The electric cylinder pushes the mounting frame downwards, and the motor drives the transmission wheel to rotate via the transmission wheel. The transmission wheel rotates the cleaning rod, slowly inserting the rotating cleaning rod into the inner wall of the metal corrugated pipe, gradually moving downwards to clean the inside of the pipe. This facilitates quick placement and limiting of metal corrugated pipes, and allows for the simultaneous cleaning of multiple metal corrugated pipes.
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Description

Technical Field

[0001] This utility model relates to the field of metal bellows technology, and in particular to a device for cleaning the inner wall grooves of metal bellows. Background Technology

[0002] Metal corrugated pipes are pipes with a regular wavy shape. Commonly used metal corrugated pipes include those made of carbon steel and stainless steel, as well as steel-lined plastic, aluminum, and others. They are mainly used for connecting pipes to each other or connecting pipes to equipment in situations requiring a very small bending radius for non-concentric axial transmission, irregular turns, expansion and contraction, or absorbing thermal deformation of the pipeline, or in situations where it is inconvenient to install them with fixed elbows.

[0003] Because of the wavy shape of the metal bellows, some difficult-to-clean stains can easily remain on the grooves of its inner wall. Some of these stains can corrode the inner wall of the metal bellows, thus requiring cleaning. Conventional cleaning devices typically place one metal bellows, resulting in low cleaning efficiency. Furthermore, the device needs to be positioned before cleaning, which is time-consuming. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for cleaning the inner wall grooves of metal bellows, thereby solving the problems mentioned in the background art.

[0005] A device for cleaning the inner wall grooves of a metal corrugated pipe includes a workbench and a cleaning mechanism and a limiting assembly mounted on the workbench. The cleaning mechanism includes an electric cylinder, a mounting frame, a motor, a transmission wheel, a transmission wheel, and a cleaning rod. The electric cylinder is mounted on the top of the workbench, the mounting frame is mounted on the output end of the electric cylinder, the motor is mounted on the upper end of the mounting frame, the transmission wheel and the transmission wheel are both rotatably mounted on the lower end plate of the mounting frame, and the transmission wheel consists of multiple transmission wheels that mesh around the transmission wheel. The cleaning rod passes through the lower end plate of the mounting frame and is fixedly mounted on the bottom of the transmission wheel.

[0006] The limiting assembly consists of multiple corresponding cleaning rods, including a chassis, a first fixing plate, a second electric cylinder, a connecting rod, a second limiting rod, a first limiting plate, a second fixing plate, a second limiting plate, and a screw. The first and second fixing plates are respectively fixed to the two sides of the chassis. The second electric cylinder is installed in the middle of the first fixing plate. The first limiting plate consists of two opposing plates that are inserted into the first fixing plate through the second limiting rod. The first limiting plate is fixedly connected to the output end of the second electric cylinder through the connecting rod. The second limiting plate consists of two opposing plates that are inserted into the second fixing plate through the third limiting rod. The second limiting plate is adjustablely installed on the second fixing plate through the screw.

[0007] By adopting the above technical solution, metal corrugated pipes can be placed quickly and easily, and multiple metal corrugated pipes can be cleaned simultaneously.

[0008] The mounting frame is also equipped with a limiting rod that penetrates the upper plate of the workbench; there are two limiting rods.

[0009] By adopting the above technical solution, the mounting bracket can be moved vertically downwards.

[0010] The upper end plate of the chassis is a ring structure with multiple guide ports. The diameter of the central hole of the chassis is larger than the diameter of the central shaft of the cleaning rod.

[0011] By adopting the above technical solution, it is possible to facilitate the discharge of impurities and cleaning fluid after cleaning.

[0012] Both the first limiting plate and the second limiting plate are designed with an arc shape.

[0013] By adopting the above technical solution, the corrugated pipe support is limited.

[0014] A slotted plate is also installed on the workbench, and the limiting component is installed on the protrusion of the slotted plate.

[0015] By adopting the above technical solution, the cleaned liquid and impurities can be collected in the tank plate.

[0016] The beneficial effects of this utility model for cleaning the inner wall grooves of metal bellows are:

[0017] The second drive cylinder pushes the connecting rod to move, which in turn moves the first limiting plate towards the metal bellows. The second limiting plate, in conjunction with the first driving cylinder, clamps and limits the metal bellows from the outside. The first drive cylinder pushes the mounting bracket downwards, and the motor drives the first transmission wheel to rotate the second transmission wheel. The second transmission wheel then rotates the cleaning rod, slowly inserting the rotating cleaning rod into the inner wall of the metal bellows. This downward movement cleans the inside of the metal bellows, facilitating quick placement and limiting of the metal bellows, and allowing for the simultaneous cleaning of multiple metal bellows. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the cleaning device for the inner wall groove of a metal bellows proposed in this utility model.

[0019] Figure 2 This is a diagram of the cleaning device for the inner wall groove of a metal bellows proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the metal corrugated pipe structure proposed in this utility model.

[0021] In the diagram: 1. Workbench; 2. Electric cylinder one; 3. Limiting rod one; 4. Mounting bracket; 5. Motor; 6. Transmission wheel one; 7. Transmission wheel two; 8. Cleaning rod; 9. Limiting assembly; 901. Chassis; 902. Fixing plate one; 903. Electric cylinder two; 904. Connecting rod; 905. Limiting rod two; 906. Limiting plate one; 907. Fixing plate two; 908. Limiting plate two; 909. Screw; 910. Limiting rod three; 10. Slot plate; 1001. Boss. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0023] Reference Figure 1-3 A device for cleaning the inner wall groove of a metal bellows includes a workbench 1 and a cleaning mechanism and a limiting component 9 mounted on the workbench 1. The cleaning mechanism includes an electric cylinder 2, a mounting frame 4, a motor 5, a transmission wheel 6, a transmission wheel 7, and a cleaning rod 8. The electric cylinder 2 is mounted on the top of the workbench 1, the mounting frame 4 is mounted on the output end of the electric cylinder 2, the motor 5 is mounted on the upper end of the mounting frame 4, the transmission wheel 6 and the transmission wheel 7 are both rotatably mounted on the lower end plate of the mounting frame 4, and the transmission wheel 7 consists of multiple transmission wheels that mesh around the transmission wheel 6. The cleaning rod 8 passes through the lower end plate of the mounting frame 4 and is fixedly mounted on the bottom of the transmission wheel 7.

[0024] The limiting assembly 9 is configured to correspond one-to-one with multiple cleaning rods 8, including a chassis 901, a first fixing plate 902, a second electric cylinder 903, a connecting rod 904, a second limiting rod 905, a first limiting plate 906, a second fixing plate 907, a second limiting plate 908, and a screw 909. The first fixing plate 902 and the second fixing plate 907 are respectively fixed on both sides of the chassis 901. The second electric cylinder 903 is installed in the middle of the first fixing plate 902. The first limiting plate 906 consists of two opposing plates inserted into the first fixing plate 902 through the second limiting rod 905. The first limiting plate 906 is fixedly connected to the output end of the second electric cylinder 903 through the connecting rod 904. The second limiting plate 908 consists of two opposing plates inserted into the second fixing plate 907 through the third limiting rod 910. The second limiting plate 908 is adjustablely installed on the second fixing plate 907 through the screw 909.

[0025] The upper end plate of the chassis 901 is a circular structure with multiple guide ports. The diameter of the central hole of the chassis 901 is larger than the diameter of the central shaft of the cleaning rod 8. The chassis 901 is provided with support legs on the side to support the upper end plate of the chassis 901, which facilitates the discharge of impurities and cleaning fluid after cleaning.

[0026] Both the first limiting plate 906 and the second limiting plate 908 are arc-shaped structures to facilitate the limiting and clamping of the metal bellows. The upper and lower ends of the metal bellows are limited by the first limiting plate 906 and the second limiting plate 908.

[0027] The metal corrugated pipe can be placed centered on the base 901 of the limiting component 9. Then, rotate the two screws 909 on the fixing plate 907 to push the limiting plate 908 to the side of the metal corrugated pipe. After adjustment, the electric cylinder 903 can be driven to push the connecting rod 904 to move. The connecting rod 904 drives the limiting plate 906 to move towards the metal corrugated pipe. The limiting plate 908 clamps and limits the metal corrugated pipe from the outside. Rubber pads can be set on 906 and 908 to increase the friction on the metal corrugated pipe and stably clamp the metal corrugated pipe.

[0028] Mounting frame 4 is also equipped with two limiting rods 3 that penetrate the upper end plate of workbench 1, ensuring stable up-and-down movement of mounting frame 4. Drive cylinder 2 pushes mounting frame 4 downwards, and drives motor 5 to rotate transmission wheel 7 via transmission wheel 6. Transmission wheel 7 then rotates the cleaning rod 8, slowly inserting the rotating cleaning rod 8 into the inner wall of the metal corrugated pipe, gradually moving it downwards to clean the inside of the metal corrugated pipe. During the cleaning process, an external water supply device is required (usually a water pump is used to extract the cleaning solution). The cleaning fluid is output through a pipe. The external pipe can be connected to an external mounting bracket, with the pipe port positioned directly above the metal bellows. The cleaning fluid is injected into the metal bellows from above, allowing the cleaning rod 8 to clean the inner wall of the metal bellows. A trough plate 10 is also installed on the workbench 1, and a limiting component 9 is installed on the boss 1001 of the trough plate 10. The cleaned liquid and impurities can be collected in the trough plate 10 for easy subsequent cleaning. An outlet is provided on one side of the trough plate 10, through which the cleaning fluid in the trough plate 10 can be discharged through a pipe.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A device for cleaning the inner wall grooves of a metal bellows, comprising a worktable (1) and a cleaning mechanism and a limiting assembly (9) mounted on the worktable (1), characterized in that: The cleaning mechanism includes an electric cylinder (2), a mounting frame (4), a motor (5), a transmission wheel (6), a transmission wheel (7), and a cleaning rod (8). The electric cylinder (2) is installed at the top of the workbench (1). The mounting frame (4) is installed at the output end of the electric cylinder (2). The motor (5) is installed at the upper end of the mounting frame (4). The transmission wheel (6) and the transmission wheel (7) are both rotatably installed at the lower end plate of the mounting frame (4). The transmission wheel (7) consists of multiple transmission wheels that mesh around the transmission wheel (6). The cleaning rod (8) passes through the lower end plate of the mounting frame (4) and is fixedly installed at the bottom of the transmission wheel (7). The limiting assembly (9) is configured in a one-to-one correspondence with multiple cleaning rods (8), including a chassis (901), a first fixing plate (902), a second electric cylinder (903), a connecting rod (904), a second limiting rod (905), a first limiting plate (906), a second fixing plate (907), a second limiting plate (908), and a screw (909). The first fixing plate (902) and the second fixing plate (907) are respectively fixed to both sides of the chassis (901), and the second electric cylinder (903) is installed on the first fixing plate. In the middle of (902), the first limiting plate (906) consists of two opposing plates inserted into the first fixing plate (902) via the second limiting rod (905), and the first limiting plate (906) is fixedly connected to the output end of the second electric cylinder (903) via the connecting rod (904). The second limiting plate (908) consists of two opposing plates inserted into the second fixing plate (907) via the third limiting rod (910), and the second limiting plate (908) is adjustablely mounted on the second fixing plate (907) via the screw (909).

2. The cleaning device for the inner wall groove of a metal bellows according to claim 1, characterized in that: The mounting bracket (4) is also equipped with a limiting rod (3) that penetrates the upper end plate of the workbench (1), and there are two limiting rods (3).

3. The cleaning device for the inner wall groove of a metal bellows according to claim 2, characterized in that: The upper end plate of the chassis (901) is a circular structure with multiple guide ports. The diameter of the central hole of the chassis (901) is larger than the diameter of the central shaft of the cleaning rod (8).

4. The cleaning device for the inner wall groove of a metal bellows according to claim 3, characterized in that: Both the limiting plate one (906) and the limiting plate two (908) are arc-shaped structures.

5. The cleaning device for the inner wall groove of a metal bellows according to claim 4, characterized in that: The workbench (1) is also equipped with a slotted plate (10), and the limiting component (9) is installed on the boss (1001) of the slotted plate (10).