Grinding device for inner side face of steel pipe

By designing a support frame, steel bars, stabilizing mechanism, and lighting components, the problem of inconvenient operation for grinding the inner wall of thick-walled steel pipes is solved, achieving stable and effective grinding results and safety, and improving the practicality of the steel pipe inner surface grinding device.

CN223656653UActive Publication Date: 2025-12-12ZHEJIANG ZHENGLI STAINLESS STEEL CO LTD
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Patent Information

Application Number
CN202423297709.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-12
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing steel pipe inner surface grinding devices are inconvenient to operate when grinding the inner walls of thick-walled steel pipes, resulting in poor grinding effects and reducing the practicality of the devices.

Method used

A steel pipe inner surface grinding device was designed, including a support frame, steel bars, a stabilizing mechanism, a grinding component, and a lighting component. The rack, gears, and stabilizing blocks in the stabilizing mechanism ensure stable operation of the grinding machine inside a deep steel pipe. The fixing component and the lighting component enable effective observation and fixation of the grinding process.

Benefits of technology

It improves the grinding effect on the inner wall of thick-walled steel pipes, ensures simple operation, avoids accidents caused by the grinding machine slipping, and enhances the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a steel pipe inner side face polishing device and belongs to the technical field of steel pipe polishing. Comprising a supporting frame, a steel bar slidably connected to the interior of the supporting frame, a stabilizing mechanism installed in the supporting frame and used for ensuring the stability of the steel bar during adjustment, a grinding assembly installed at the top of the steel bar and used for grinding the inner wall of a steel pipe, and an illumination assembly installed on the left side of the supporting frame and used for achieving the illumination effect. The stabilizing mechanism comprises a stabilizing assembly and a fixing assembly, wherein the stabilizing assembly is installed in the supporting frame and used for enabling the steel bars to be adjusted more stably, and the fixing assembly is installed in the supporting frame and used for fixing the steel bars. According to the steel pipe inner side face grinding device, a grinding machine can stably and effectively stretch into heavy steel pipes such as deep thick-wall steel pipes, the grinding machine can be effectively fixed after being used, and workers can observe the grinding process of the inner walls of the heavy steel pipes such as the thick-wall steel pipes more clearly; the practicability of the steel pipe inner side face grinding device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe polishing technical field especially is a kind of steel pipe inner side polishing device. BACKGROUND

[0002] Steel pipe is a kind of economic steel, steel pipe can be used to transport fluid and powdery solid, exchange heat energy and manufacture mechanical parts, steel pipe can also be used to manufacture building structure net rack, support and mechanical support, and using steel pipe to manufacture highway bridge not only can save steel, simplify construction, but also can greatly reduce the area of protective layer, save investment and maintenance cost, when steel pipe interior occurs corrosion, generally need to use pipe inner side polishing device.

[0003] The existing steel pipe inner side polishing device, when the inner wall of heavy steel pipe such as thick-walled steel pipe needs to be polished, the worker generally extends the polisher into the steel pipe, in actual use, because the depth of the steel pipe is deep, the worker is inconvenient to operate the polisher, so that the steel pipe inner side is very inconvenient to polish, so that the expected polishing effect cannot be achieved, and the practicability of the existing steel pipe inner side polishing device is reduced. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the present application provides a steel pipe inner side polishing device, which has the advantages of convenient and effective polishing of the inner wall of heavy steel pipe such as thick-walled steel pipe, and solves the problem of low practicability of the existing steel pipe inner side polishing device.

[0005] To achieve the above-mentioned purpose of conveniently and effectively polishing the inner wall of heavy steel pipe such as thick-walled steel pipe, the present application provides the following technical scheme: a steel pipe inner side polishing device, comprising a support frame, a steel bar slidingly connected to the inside of the support frame, a stabilizing mechanism installed in the inside of the support frame for ensuring the stability of the steel bar adjustment, a polishing assembly installed on the top of the steel bar for polishing the inner wall of the steel pipe, and a lighting assembly installed on the left side of the support frame for lighting effect.

[0006] The stabilizing mechanism comprises a stabilizing assembly installed in the inside of the support frame for making the steel bar adjustment more stable, and a fixing assembly installed in the inside of the support frame for fixing the steel bar.

[0007] The stabilizing assembly comprises a rack fixed to the bottom of the steel bar, a gear engaged with the bottom of the rack, a stabilizing rod fixed to the inside of the gear, a sliding groove opened at the top of the support frame, two stabilizing blocks fixed to the front and back of the steel bar respectively, and a limiting rod slidingly connected to the inside of the stabilizing block.

[0008] By adopting the above technical solution, workers can conveniently and effectively grind the inner wall of heavy steel pipes such as thick-walled steel pipes.

[0009] Furthermore, the fixing assembly includes a fixing block fixed inside the support frame, a plug-in block fixed to the right side of the steel bar, a plug-in slot opened on the left side of the fixing block, a fixing plate fixed to the left side of the fixing block, a spring fixed to the top of the fixing plate, a movable plate fixed to the top of the spring, and a fixing rod fixed inside the movable plate.

[0010] By adopting the above technical solution, the steel bar can be effectively fixed after use.

[0011] Furthermore, the grinding assembly includes a mounting plate fixed to the left side of the steel bar, a grinding machine body fixed to the left side of the mounting plate by bolts, an electric wire slidably connected to the right side of the grinding machine body, and two handles fixed to the top of the steel bar.

[0012] By adopting the above technical solution, it is ensured that the inner wall of heavy steel pipes such as thick-walled steel pipes can be effectively ground.

[0013] Furthermore, the lighting assembly includes a screw fixed to the left side of the support frame, an adjusting cylinder threaded to the outside of the screw, and a lighting lamp fixed to the left side of the adjusting cylinder.

[0014] By adopting the above technical solution, it is ensured that staff can more effectively observe the grinding effect on the inner wall of the steel pipe.

[0015] Furthermore, the wire is fixed to the main body of the grinder, and the bottom of the wire is in close contact with the top of the steel strip.

[0016] By adopting the above technical solution, the interference caused to staff by the swaying of the power cord during use can be effectively avoided.

[0017] Furthermore, the bottom end of the fixing rod passes through the moving plate, the fixing plate, and the fixing block in sequence and extends into the interior of the fixing block to be inserted into the fixing block.

[0018] By adopting the above technical solution, it is ensured that the steel bar can be effectively fixed by the fixing rod and fixing block.

[0019] Furthermore, the support frame has an internal mounting groove, and the front and back of the stabilizer rod are rotatably connected to the inside of the mounting groove via bearings.

[0020] By adopting the above technical solution, it is ensured that the rack can effectively mesh with the gear and that the gear can rotate stably and effectively in its original position.

[0021] Furthermore, the top of the mounting groove is connected to the sliding groove, and two sliding grooves are provided inside the support frame, with each of the two sliding grooves having a corresponding side connected to the sliding groove.

[0022] By adopting the above technical solution, the movement of the steel bar is ensured to be more stable under the action of the chute and the stabilizing block.

[0023] Compared with the prior art, this utility model provides a steel pipe inner surface grinding device, which has the following beneficial effects:

[0024] This steel pipe inner surface grinding device, through the coordinated use of a support frame, steel bars, and a stabilizing mechanism consisting of a rack, gears, and stabilizing blocks, can stably and effectively extend the grinder into the interior of heavy steel pipes, such as thick-walled steel pipes, making it easy for operators to use and ensuring the desired grinding effect on the inner wall of the steel pipe is achieved. Furthermore, the stabilizing mechanism, with its insert block, fixing rod, and spring, effectively secures the grinder after use, preventing slippage and potential accidents. Additionally, the combined use of the grinding and lighting components allows operators to clearly observe the grinding process on the inner wall of heavy steel pipes, ensuring the desired grinding effect is achieved and enhancing the practicality of the steel pipe inner surface grinding device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is a three-dimensional schematic diagram of the stable block connection structure in this application.

[0027] Figure 3 This is a top cross-section of the structure of this utility model;

[0028] Figure 4 A partially enlarged schematic diagram of part A in the structure of this utility model.

[0029] In the diagram: 1. Support frame; 2. Steel bar; 200. Stabilizing mechanism; 201. Stabilizing component; 2011. Rack; 2012. Gear; 2013. Stabilizing bar; 2014. Mounting slot; 2015. Sliding slot; 2016. Stabilizing block; 2017. Limiting rod; 2018. Sliding groove; 202. Fixing component; 2021. Fixing block; 2022. Insertion block; 2023. Insertion slot; 2024. Fixing plate; 2025. Spring; 2026. Moving plate; 2027. Fixing rod; 300. Grinding component; 301. Mounting plate; 302. Grinding machine body; 303. Wire; 304. Handle; 400. Lighting component; 401. Screw; 402. Adjusting cylinder; 403. Light. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] Please see Figures 1 to 4 This utility model provides a technical solution: a steel pipe inner side grinding device, including a support frame 1, a steel bar 2 slidably connected inside the support frame 1, a stabilizing mechanism 200 installed inside the support frame 1 to ensure the stability of the steel bar 2 during adjustment, a grinding component 300 installed on the top of the steel bar 2 for grinding the inner wall of the steel pipe, and a lighting component 400 installed on the left side of the support frame 1 for lighting purposes.

[0032] With the combined use of support frame 1, steel bar 2, and stabilizing mechanism 200, the grinding machine can be stably and effectively inserted into the interior of heavy steel pipes such as thick-walled steel pipes with considerable depth during actual use. This makes operation easier for workers, ensuring that the expected grinding effect on the inner wall of the steel pipe is achieved. After use, the grinding machine can be effectively fixed to prevent slippage and other accidents. At the same time, with the combined use of grinding component 300 and lighting component 400, workers can more clearly observe the grinding process on the inner wall of heavy steel pipes such as thick-walled steel pipes, ensuring that the expected grinding effect is achieved and improving the practicality of the steel pipe inner surface grinding device.

[0033] In this embodiment, the stabilizing mechanism 200 is a structure used to ensure the stability of the steel bar 2 during adjustment.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the stabilizing mechanism 200 includes a stabilizing component 201 installed inside the support frame 1 for making the steel bar 2 more stable, and a fixing component 202 installed inside the support frame 1 for fixing the steel bar 2.

[0035] In this embodiment, the stabilizing component 201 is a structure used to make the adjustment of the steel bar 2 more stable.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the stabilizing component 201 includes a rack 2011 fixed to the bottom of the steel bar 2, a gear 2012 meshing with the bottom of the rack 2011, a stabilizing rod 2013 fixed inside the gear 2012, a sliding groove 2015 opened on the top of the support frame 1, two stabilizing blocks 2016 respectively fixed to the front and back of the steel bar 2, and a limiting rod 2017 slidably connected inside the stabilizing block 2016.

[0037] It should be noted that the support frame 1 has an internal mounting groove 2014. The front and back of the stabilizer bar 2013 are rotatably connected to the inside of the mounting groove 2014 through bearings. The top of the mounting groove 2014 is connected to the sliding groove 2015 to ensure that the gear 2012 rotates stably and effectively in its original position, while allowing the rack 2011 to effectively mesh with the gear 2012.

[0038] In addition, two sliding grooves 2018 are opened inside the support frame 1. The opposite side of the two sliding grooves 2018 is connected to the sliding groove 2015 to ensure that the steel bar 2 moves more stably under the action of the sliding groove 2018 and the stabilizing block 2016. The limiting rod 2017 is fixed inside the sliding groove 2018 to fix the limiting rod 2017.

[0039] In this embodiment, the fixing component 202 is a structure used to fix the steel bar 2.

[0040] like Figure 1 and Figure 4 As shown, the fixing assembly 202 includes a fixing block 2021 fixed inside the support frame 1, a plug-in block 2022 fixed to the right side of the steel bar 2, a plug-in slot 2023 opened on the left side of the fixing block 2021, a fixing plate 2024 fixed to the left side of the fixing block 2021, a spring 2025 fixed to the top of the fixing plate 2024, a movable plate 2026 fixed to the top of the spring 2025, and a fixing rod 2027 fixed inside the movable plate 2026.

[0041] It should be noted that the bottom end of the fixing rod 2027 passes through the moving plate 2026, the fixing plate 2024 and the fixing block 2021 in sequence and extends into the interior of the fixing block 2021 to be inserted into the fixing block 2021, so as to ensure that the steel bar 2 can be effectively fixed through the fixing rod 2027 and the fixing block 2021.

[0042] In this embodiment, the grinding component 300 is a structure used for grinding the inner wall of the steel pipe.

[0043] like Figure 1 As shown, the grinding assembly 300 includes a mounting plate 301 fixed to the left side of the steel bar 2, a grinding machine body 302 fixed to the left side of the mounting plate 301 by bolts, an electric wire 303 slidably connected to the right side of the grinding machine body 302, and two handles 304 fixed to the top of the steel bar 2.

[0044] It should be noted that the wire 303 is fixed to the main body 302 of the grinder, and the bottom of the wire 303 is in close contact with the top of the steel strip 2. The wire 303 is fixed to the steel strip 2 by multiple steel nails and wire clips, which can effectively prevent the wire 303 from shaking and causing interference to the staff during use.

[0045] In this embodiment, the lighting component 400 is a structure used to provide illumination.

[0046] like Figure 1 As shown, the lighting assembly 400 includes a screw 401 fixed to the left side of the support frame 1, an adjusting cylinder 402 threaded to the outside of the screw 401, and a lighting lamp 403 fixed to the left side of the adjusting cylinder 402.

[0047] The working principle of the above embodiments is as follows:

[0048] In use, the grinding machine body 302 is fixed to the mounting plate 301 with bolts. Then, the grinding wheel of the grinding machine body 302 is aligned with the steel pipe to be ground. The grinding machine body 302 is then opened to grind the inner wall of the steel pipe. Simultaneously, the lighting 403 is turned on. The adjusting cylinder 402 can be rotated to move the lighting 403 left and right to ensure the desired lighting effect is achieved. Then, the operator pulls the handle 304 to the left, moving the steel bar 2 and the grinding machine body 302 to the left. This moves the rack 2011 to the left, causing the gear 2012 to rotate in its original position. The rack 2011, gear 2012, and stabilizer bar 2013 then engage the steel bar 2. The adjustment is more stable, thus ensuring the grinding effect on the inner wall of the steel pipe. At the same time, the stabilizing block 2016 slides on the outside of the limiting rod 2017, thereby further improving the stability of the steel strip 2 during adjustment. After grinding is completed, the handle 304 drives the steel strip 2 to move to the right, while pulling the fixing rod 2027 upward. At this time, the spring 2025 is in a stretched state. Then, the insertion block 2022 is inserted into the fixing block 2021 through the insertion slot 2023. Then, the fixing rod 2027 is released. Under the action of the spring 2025's restoring force, the fixing rod 2027 is inserted into the fixing block 2021, thereby fixing the steel strip 2 through the fixing block 2021, thus fixing the grinding machine body 302.

[0049] Compared with existing technologies, this steel pipe inner surface grinding device, through the coordinated use of the support frame 1, steel bars 2, and the rack 2011, gear 2012, and stabilizing block 2016 in the stabilizing mechanism 200, can stably and effectively extend the grinder into the interior of heavy steel pipes such as thick-walled steel pipes with greater depth during actual use. This makes it easier for operators to use and ensures that the expected grinding effect on the inner wall of the steel pipe is achieved. Furthermore, through the coordinated use of the plug block 2022, fixing rod 2027, and spring 2025 in the stabilizing mechanism 200, the grinder can be effectively fixed after use, thereby preventing the grinder from slipping and causing other accidents. At the same time, through the coordinated use of the grinding component 300 and the lighting component 400, operators can more clearly observe the grinding process of the inner wall of heavy steel pipes such as thick-walled steel pipes, ensuring that the expected grinding effect is achieved. This improves the practicality of the steel pipe inner surface grinding device and solves the problem of low practicality of existing steel pipe inner surface grinding devices.

[0050] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The provision of external power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

Claims

1. A device for grinding the inner surface of a steel pipe, characterized in that: Includes a support frame (1), a steel bar (2) slidably connected inside the support frame (1), a stabilizing mechanism (200) installed inside the support frame (1) to ensure the stability of the steel bar (2) during adjustment, a grinding assembly (300) installed on the top of the steel bar (2) for grinding the inner wall of the steel pipe, and a lighting assembly (400) installed on the left side of the support frame (1) for lighting purposes. The stabilizing mechanism (200) includes a stabilizing component (201) installed inside the support frame (1) for making the steel bar (2) more stable, and a fixing component (202) installed inside the support frame (1) for fixing the steel bar (2). The stabilizing component (201) includes a rack (2011) fixed to the bottom of the steel bar (2), a gear (2012) meshing with the bottom of the rack (2011), a stabilizing rod (2013) fixed inside the gear (2012), a sliding groove (2015) opened on the top of the support frame (1), two stabilizing blocks (2016) respectively fixed to the front and back of the steel bar (2), and a limiting rod (2017) slidably connected inside the stabilizing block (2016).

2. The steel pipe inner surface grinding device according to claim 1, characterized in that: The fixing component (202) includes a fixing block (2021) fixed inside the support frame (1), a plug-in block (2022) fixed to the right side of the steel bar (2), a plug-in slot (2023) opened on the left side of the fixing block (2021), a fixing plate (2024) fixed to the left side of the fixing block (2021), a spring (2025) fixed to the top of the fixing plate (2024), a moving plate (2026) fixed to the top of the spring (2025), and a fixing rod (2027) fixed inside the moving plate (2026).

3. The steel pipe inner surface grinding device according to claim 1, characterized in that: The grinding assembly (300) includes a mounting plate (301) fixed to the left side of the steel bar (2), a grinding machine body (302) fixed to the left side of the mounting plate (301) by bolts, an electric wire (303) slidably connected to the right side of the grinding machine body (302), and two handles (304) fixed to the top of the steel bar (2).

4. The steel pipe inner surface grinding device according to claim 1, characterized in that: The lighting assembly (400) includes a screw (401) fixed to the left side of the support frame (1), an adjusting cylinder (402) threaded to the outside of the screw (401), and a lighting lamp (403) fixed to the left side of the adjusting cylinder (402).

5. The steel pipe inner surface grinding device according to claim 3, characterized in that: The wire (303) is fixed to the body of the grinder (302), and the bottom of the wire (303) is in close contact with the top of the steel bar (2).

6. The steel pipe inner surface grinding device according to claim 2, characterized in that: The bottom end of the fixing rod (2027) passes through the moving plate (2026), the fixing plate (2024) and the fixing block (2021) in sequence and extends into the interior of the fixing block (2021) to be inserted into the fixing block (2021).

7. The steel pipe inner surface grinding device according to claim 1, characterized in that: The support frame (1) has an installation groove (2014) inside, and the front and back of the stabilizer (2013) are rotatably connected to the inside of the installation groove (2014) by bearings.

8. The steel pipe inner surface grinding device according to claim 7, characterized in that: The top of the mounting groove (2014) is connected to the sliding groove (2015), and two sliding grooves (2018) are opened inside the support frame (1). The opposite sides of the two sliding grooves (2018) are connected to the sliding groove (2015).