A pipe rust removal device
By designing adaptive protective barriers on the pipeline rust removal device, the problems of rust dust splashing and safety hazards were solved, achieving an efficient and safe pipeline rust removal process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA LIGHT IND INT ENG CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional pipe rust removal equipment generates rust dust during the grinding process, posing safety hazards and polluting the environment, and it is difficult to adapt to the complex shapes of the pipe's outer wall.
A pipe rust removal device was designed, which uses a protective rod on the mounting plate to form a closed enclosure through a telescopic mechanism. The protective rod can adapt to changes in the outer wall of the pipe, blocking rust chips from splashing, and provides elastic force through a spring to ensure close contact with the pipe.
It effectively prevents rust chips from splashing, reduces dust pollution, improves safety, adapts to complex shapes on the outer wall of pipes, and ensures the continuity and smoothness of rust removal work.
Smart Images
Figure CN224526800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline rust removal equipment technology, and in particular to a pipeline rust removal device. Background Technology
[0002] Pipelines exposed to natural or industrial environments for extended periods are highly susceptible to corrosion. Rust buildup reduces the strength and lifespan of pipelines, making anti-corrosion treatment particularly important.
[0003] Traditional pipe rust removal equipment, such as some grinding machines, usually has a protective cover on the side of the grinding head for safety. The protective cover is usually made of hard material and has an opening on the side away from the handle. During the grinding process, the rust being ground can splash out from the opening of the protective cover, which can easily cause rust dust to fly around during the grinding process, as well as accidental injury to people in the vicinity or scratches from other objects. Utility Model Content
[0004] This utility model provides a pipe rust removal device. The protective rod of the device can form a closed barrier around the outer edge of the grinding wheel, which can effectively block the splashing of rust and other materials. The protective rod on the mounting plate can be extended and retracted relative to the mounting plate through the telescopic mechanism, which can adapt to local changes in the outer wall of the pipe, ensure that the barrier forms a closed anti-splash space for the grinding wheel, avoid accidental injury to personnel during the grinding process, and reduce dust pollution caused by flying rust dust.
[0005] The above-mentioned objective of the utility model is achieved through the following technical solution:
[0006] A pipe rust removal device includes a handle, a motor base at the front end of the handle, a drive motor fixedly connected inside the motor base, a grinding wheel connected to the shaft of the drive motor, a mounting plate sleeved on the shaft of the drive motor, the mounting plate being located between the grinding wheel and the motor base, the mounting plate being parallel to the grinding wheel and fixedly connected to the motor base, a plurality of protective rods being provided circumferentially on the side of the mounting plate opposite to the grinding wheel, the plurality of protective rods forming a ring-shaped barrier along the circumference of the grinding wheel, the protective rods sliding on the mounting plate, and a telescopic mechanism being provided between the protective rods and the mounting plate.
[0007] In the aforementioned pipe rust removal device, the mounting plate includes a plate base and a plate cover. The plate cover is placed on top of the plate base. The plate base and the plate cover have a mounting hole in the center for the shaft of the drive motor to pass through. The plate cover is fixedly connected to the motor base and the plate base.
[0008] In the aforementioned pipe rust removal device, the telescopic mechanism includes a receiving groove arranged circumferentially on the side of the disc base near the disc cover. The receiving groove is perpendicular to the plane of the disc base. The bottom of the receiving groove is provided with a necked sliding hole. The sliding hole passes through the disc base and is coaxial with the receiving groove. The top of the protective rod is fixedly connected to a slider. The slider is slidably disposed in the receiving groove. The protective rod is embedded in the sliding hole. The top of the slider is provided with a spring. One end of the spring abuts against the slider, and the other end of the spring abuts against the disc cover.
[0009] In the aforementioned pipe rust removal device, the enclosure includes an inner enclosure and an outer enclosure from the inside out. Both the inner enclosure and the outer enclosure are concentrically arranged with the shaft of the drive motor, and the protective rods on the inner enclosure and the outer enclosure are staggered along the circumference.
[0010] In the aforementioned pipe rust removal device, the bottom end of the protective rod is hemispherical.
[0011] In the aforementioned pipe rust removal device, the side wall of the receiving groove is provided with a strip-shaped guide groove along the axial direction, the slider is provided with a limiting block adapted to the strip-shaped guide groove, and the protective rod is provided with a pair of side wings, the length of which extends along the length direction of the protective rod.
[0012] In the aforementioned pipe rust removal device, the side wings of the protective rod are inclined toward the grinding wheel and symmetrically distributed relative to the axis of rotation of the drive motor.
[0013] In the aforementioned pipe rust removal device, the side wings between two adjacent protective rods abut against each other.
[0014] In the aforementioned pipe rust removal device, the protective rod is made of metal or engineering plastic.
[0015] In summary, the beneficial technical effects of this utility model are as follows:
[0016] 1. This rust removal device can adapt to complex external walls: the guard on the mounting plate can cover the grinding wheel in a ring, and the bottom of the protective rod can adapt to the unevenness, weld points, rust spots and other complex conditions of the pipe's outer wall by self-adapting and extending. The hemispherical shape at the bottom of the protective rod can also reduce the friction with the pipe's outer wall, making the device move smoothly. Moreover, each protective rod can extend and retract independently of the other protective rods, which can flexibly respond to local changes in the outer wall.
[0017] 2. Adaptive height adjustment: The guard rod automatically adjusts its height according to the undulations of the outer wall of the pipe through the telescopic mechanism, always maintaining contact with the outer wall of the pipe, ensuring the continuity and smoothness of the rust removal work.
[0018] 3. Excellent protective performance: The side wings on both sides of the guard rod can effectively block the splashing of rust chips generated during grinding, improve the protective performance of the enclosure for the grinding area, reduce the splashing of rust chips, and protect the operator, surrounding personnel and objects. At the same time, it can also reduce dust pollution caused by flying rust dust. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;
[0021] Figure 3 This is a partial sectional view of the telescopic mechanism of this utility model;
[0022] Figure 4 This is a partial sectional view of the telescopic mechanism with a limit structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the inner and outer enclosures of this utility model;
[0024] Figure 6 This is a schematic diagram of the protective rod of this utility model with side wings.
[0025] The diagram shows: 1. Handle; 2. Motor base; 3. Grinding wheel; 4. Mounting plate; 41. Plate base; 42. Plate cover; 5. Protective rod; 51. Side wing; 6. Enclosure; 61. Inner enclosure; 62. Outer enclosure; 7. Telescopic mechanism; 71. Receiving groove; 711. Strip guide groove; 72. Sliding hole; 73. Slider; 74. Spring. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.
[0027] like Figure 1 , 2 As shown, a pipe rust removal device includes a handle 1, with a motor base 2 fixedly connected to the front end of the handle 1. A drive motor (not shown) is fixedly connected inside the motor base 2. The shaft of the drive motor is connected to a grinding wheel 3. The grinding wheel 3 is provided with rust-removing steel wire (not shown) along its circumference. A mounting plate 4 is sleeved on the shaft of the drive motor. The mounting plate 4 is located between the grinding wheel 3 and the motor base 2. The mounting plate 4 is arranged parallel to the grinding wheel 3 and is fixed to the motor base 2 by screws. On the side of the mounting plate 4 opposite to the grinding wheel 3, a plurality of protective rods 5 are provided along its circumference. The plurality of protective rods 5 form a ring-shaped barrier 6 along the circumference of the grinding wheel 3. The protective rods 5 slide on the mounting plate 4. A telescopic mechanism 7 is provided between the protective rods 5 and the mounting plate 4, allowing the protective rods 5 to extend and retract on the mounting plate 4.
[0028] The protective rod 5 can extend or retract into the mounting plate 4. Under normal conditions, under the action of the telescopic mechanism 7, the end of the protective rod 5 can extend slightly beyond the plane of the end of the rust-removing steel wire on the grinding wheel 3 or be flush with the plane of the end of the rust-removing steel wire. This ensures that when using the device to grind the pipe, the enclosure 6 formed by the protective rod 5 can fit tightly against the outer wall of the pipe and tightly surround the grinding wheel 3, preventing the grinding debris from flying out of the enclosure 6, effectively protecting the personal safety of people around during the rust removal and grinding process, and reducing dust pollution caused by flying rust dust.
[0029] The drive motor drives the rust-removing steel wire on the grinding wheel 3 to rotate at high speed. The rust-removing steel wire acts directly on the outer wall of the pipe. The rust-removing steel wire generates a strong grinding force through the rotation speed, which quickly grinds and removes the rust on the pipe.
[0030] like Figure 1 , 2 As shown, in one embodiment, the mounting plate 4 includes a plate base 41 and a plate cover 42. Both the plate base 41 and the plate cover 42 are disc-shaped. The plate cover 42 covers the plate base 41. The center of the plate base 41 and the plate cover 42 is provided with a mounting hole for the shaft of the drive motor to pass through. The plate cover 42 is fixed to the motor base 2 by screws, and the plate cover 42 is fixed to the plate base 41 by screws.
[0031] like Figure 3 As shown, the telescopic mechanism 7 of this embodiment includes a receiving groove 71 arranged circumferentially on the side of the disc base 41 near the disc cover 42. The receiving groove 71 is perpendicular to the plane of the disc base 41. The bottom of the receiving groove 71 is provided with a necked sliding hole 72, which penetrates the disc base 41 and is coaxial with the receiving groove 71. The top of the protective rod 5 is fixedly connected to a slider 73, which slides in the receiving groove 71. The protective rod 5 is embedded in the sliding hole 72. A spring 74 is provided on the top of the slider 73. One end of the spring 74 abuts against the slider 73, and the other end of the spring 74 abuts against the disc cover 42. The spring 74 provides elastic force to the protective rod 5, enabling it to automatically extend and retract as needed due to the undulations of the outer wall of the pipe to be rusted.
[0032] During the installation of the telescopic mechanism 7, first, the cover 42 is passed through the shaft of the drive motor and fixed with screws to the motor base 2. Then, the protective rod 5 is passed through the receiving groove 71 and the sliding hole 72 in sequence. The slider 73 is slidably placed in the receiving groove 71. Next, the spring 74 is placed in the receiving groove 71. Finally, the cover 42 is placed on the base 41 and fixed with screws. After the mounting plate 4 is installed, the grinding wheel 3 is installed on the shaft of the drive motor.
[0033] like Figure 5 As shown, in one embodiment, the enclosure 6 includes an inner enclosure 61 and an outer enclosure 62 from the inside out. Both the inner enclosure 61 and the outer enclosure 62 are concentrically arranged with the drive motor on the rotating shaft. The protective rods 5 on the inner enclosure 61 and the outer enclosure 62 are staggered along the circumference.
[0034] The protective bars 5 on the inner enclosure 61 and the outer enclosure 62 are staggered in the circumferential direction and cover the outside of the grinding area of the rust-removing steel wire of the grinding wheel 3. This can effectively reduce the splashing of rust and other impurities to the outside of the enclosure 6 during the grinding process, and effectively protect the personal safety of people in the surrounding environment.
[0035] Each guard bar 5 can extend and retract independently of the other guard bars 5. In its natural state, the lowest point of the bottom of the guard bar 5 is located below the rust-removing steel wire of the grinding wheel 3.
[0036] like Figure 3 , 4 As shown, in one embodiment, the bottom end of the protective rod 5 is hemispherical. The hemispherical shape of the bottom end of the protective rod 5 reduces the friction between the protective rod 5 and the pipe, thereby lowering the frictional resistance of the protective rod 5 during the grinding process.
[0037] Due to the complex condition of the pipeline's outer wall, including unevenness and raised rust spots, the bottom end of the protective rod 5 presses against the pipeline's outer wall as the device moves along it. When encountering protrusions, welds, or areas with high rust on the pipeline's outer wall, the hemispherical bottom end of the protective rod 5 easily adapts to the shape changes of the pipeline's outer wall, causing the protective rod 5 to retract upwards into the mounting plate 4, reducing friction with the pipeline's outer wall and making the rust removal work smoother.
[0038] When the outer wall of the pipe returns to its normal height, the spring 74 releases its elastic potential energy, pushing the protective rod 5 out of the mounting plate 4, thus restoring the protective rod 5 to its original position. During the rust removal process, the bottom end of the protective rod 5 remains in contact with the outer wall of the pipe, forming a closed area between the grinding wheel 3 and the barrier 6. The rust removed by the grinding wheel 3 is contained within this closed area, effectively preventing rust from splashing and causing damage to the operator or other people and objects, and also reducing dust pollution caused by rust dust.
[0039] like Figure 4 As shown, in another embodiment, the sidewall of the receiving groove 71 is provided with a strip-shaped guide groove 711 along the axial direction, the slider 73 is provided with a limiting block (not shown in the figure) adapted to the strip-shaped guide groove 711, and the protective rod 5 is provided with a pair of side wings 51, the length of the two side wings 51 extending along the length direction of the protective rod 5.
[0040] During the sliding extension and retraction of the protective rod 5 within the sliding hole 72, the limiting block on the slider 73 is slidably positioned in the strip-shaped guide groove 711, which prevents the protective rod 5 from rotating within the sliding hole 72. This ensures that the two V-shaped side wings 51 on the protective rod 5 always face the grinding wheel 3, increasing the blocking area of the protective rod 5 against rust spatter during the rust removal process and improving the protection effect against rust dust.
[0041] In this embodiment, the protective rod 5 and the side wing 51 are integrally formed.
[0042] like Figure 4 , 6 As shown, in another embodiment, the two wings 51 of the protective rod 5 are inclined toward the grinding wheel 3 and are symmetrically distributed relative to the axis of rotation of the drive motor.
[0043] Furthermore, in order to improve the protective effect of the enclosure 6, the side wings 51 between two adjacent protective bars 5 abut against each other, thereby ensuring that the entire enclosure 6 forms a closed ring.
[0044] like Figure 6 As shown, in one embodiment, in order to improve the protective effect, the enclosure 6 is provided with two layers: an inner enclosure 61 and an outer enclosure 62, wherein the protective rods 5 on the inner enclosure 61 and the outer enclosure 62 are provided with side wings 51.
[0045] When the rust-removing steel wire on the grinding wheel 3 grinds the pipe and causes rust chips to fly, the side wings 51 on the two adjacent guard bars 5 abut against each other, which improves the protective performance of the enclosure 6 for the grinding area and reduces the flying of rust chips.
[0046] The guard rod 5 can be made of metal or engineering plastic.
[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A pipe rust removal device, comprising a handle, a motor base being provided at the front end of the handle, a drive motor being fixedly connected inside the motor base, and a grinding wheel being connected to the shaft of the drive motor, characterized in that, A mounting plate is fitted onto the shaft of the drive motor. The mounting plate is located between the grinding wheel and the motor base. The mounting plate is parallel to the grinding wheel and fixed to the motor base. Several protective rods are provided circumferentially on the side of the mounting plate opposite to the grinding wheel. The protective rods form a ring around the grinding wheel. The protective rods slide on the mounting plate. A telescopic mechanism is provided between the protective rods and the mounting plate.
2. The pipe rust removal device according to claim 1, characterized in that, The mounting plate includes a base and a cover. The cover is placed on top of the base. The base and cover have a mounting hole in the center for the shaft of the drive motor to pass through. The cover is fixedly connected to the motor base and the base.
3. The pipeline rust removal device according to claim 2, characterized in that, The telescopic mechanism includes a receiving groove arranged circumferentially on the side of the disc base near the disc cover. The receiving groove is perpendicular to the plane of the disc base. The bottom of the receiving groove is provided with a necked sliding hole. The sliding hole passes through the disc base and is coaxial with the receiving groove. The top of the protective rod is fixedly connected to a slider. The slider is slidably disposed in the receiving groove. The protective rod is embedded in the sliding hole. The top of the slider is provided with a spring. One end of the spring abuts against the slider, and the other end of the spring abuts against the disc cover.
4. The pipe rust removal device according to claim 1, characterized in that, The enclosure includes an inner enclosure and an outer enclosure from the inside out. Both the inner enclosure and the outer enclosure are concentrically arranged with the shaft of the drive motor. The guard rods on the inner enclosure and the outer enclosure are staggered along the circumference.
5. The pipe rust removal device according to claim 1, characterized in that, The bottom of the protective rod is hemispherical.
6. The pipe rust removal device according to claim 3, characterized in that, The sidewall of the receiving groove is provided with a strip-shaped guide groove along the axial direction. The slider is provided with a limiting block adapted to the strip-shaped guide groove. The protective rod is provided with a pair of side wings, the length of which extends along the length of the protective rod.
7. The pipe rust removal device according to claim 6, characterized in that, The side wings of the protective rod are inclined toward the grinding wheel and are symmetrically distributed with respect to the axis of rotation of the drive motor.
8. The pipeline rust removal device according to claim 6, characterized in that, The side wings of two adjacent guard bars abut against each other.
9. The pipe rust removal device according to claim 6, characterized in that, The protective rod and side wings are integrally formed.
10. The pipe rust removal device according to claim 1, characterized in that, The protective rod is made of metal or engineering plastic.