A hand-held electric steelwork deruster

Abstract

The utility model relates to rust removal technical field, concretely points to a kind of handheld steel electric derusting tool, including electric mainframe, its end has pivot, drive mainframe drives pivot rotation;Dual-mode polishing mechanism, including the mounting bracket fixed in pivot end and the multiple groups of strip steel brush distributed in the peripheral side of mounting bracket;Strip steel brush can be installed posture adjusted on mounting bracket, such as horizontal installation or vertical installation;When carrying out horizontal installation, multiple groups of strip steel brush form plane polishing brush;When carrying out vertical installation, multiple groups of strip steel brush form roller polishing brush.Compared with the mode that traditional different form tools are used respectively, the scheme integrates multiple polishing functions in the same handheld tool, reduces the number of tools, facilitates carrying and operation, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rust removal technology, specifically to a handheld electric rust removal tool for steel. Background Technology

[0002] In traditional electric wire brush polishing tools, flat polishing brushes and roller polishing brushes have their own applicable scenarios, but they have significant limitations.

[0003] Flat grinding brushes are often used for rust removal on large-area flat steel surfaces. The grinding brush is concentrated on a disc-shaped plane and can only efficiently grind flat surfaces. When facing irregular shapes such as pipe inner walls, grooves, and curved steel, it is difficult to deeply treat rust due to its lack of fit and flexibility.

[0004] Roller-shaped grinding brushes are suitable for cylindrical surfaces and long strips of steel. Their cylindrical design allows them to roll and grind along the axial direction. However, they cannot achieve effective contact with flat surfaces and sharp edges, requiring frequent tool changes or adjustments to the grinding angle.

[0005] Moreover, these two types of tools have fixed forms, and users often need to purchase multiple sets of tools if they need to process steel of different shapes, which increases costs and operational complexity. Therefore, targeted improvements are needed. Utility Model Content

[0006] (I) Technical Issues

[0007] The present invention aims to at least solve the problem that the shape of wire brushes cannot be adjusted or changed in the prior art.

[0008] (II) Technical Content

[0009] This solution provides a handheld electric rust removal tool for steel, achieved through the following specific technical means: including...

[0010] The electric motor has a rotating shaft at its end;

[0011] The dual-mode grinding mechanism includes a mounting bracket fixed to the end of the rotating shaft and multiple sets of strip steel brushes distributed around the mounting bracket; the strip steel brushes can be adjusted in their mounting posture on the mounting bracket, such as horizontal or vertical installation.

[0012] Preferred technical solution 1: The strip steel brush is distributed in two or more groups on the periphery of the mounting frame.

[0013] Preferred technical solution 2: The mounting frame consists of a connecting sleeve fixed on the rotating shaft and multiple sets of evenly spaced connecting arms extending from the periphery of the connecting sleeve, with each set of strip steel brushes mounted on a corresponding set of connecting arms;

[0014] A convex shaft is fixed on the strip steel brush, and the convex shaft is rotatably connected to the end of the connecting arm. At the same time, a connecting hole is also opened on the strip steel brush. Two sets of connecting holes are distributed around the convex shaft, and the included angle between the two sets of connecting holes is 90°. A set of insertion holes is opened on the connecting arm. When the strip steel brush is changed to a vertical or horizontal position, a set of pins passes through the opposite insertion hole and a connecting hole.

[0015] Preferred technical solution 3: The strip steel brush consists of a brush clamp and a steel wire brush that can be detachably installed in the clamp opening, and the convex shaft and connecting hole are both provided on the brush clamp.

[0016] Preferred technical solution four: The connecting arm is a telescopic arm, so that the diameter of the flat grinding brush or the roller grinding brush can be adjusted as needed.

[0017] Preferred technical solution five: The connecting arm consists of a fixed arm and a movable arm. The fixed arm and the connecting sleeve are integrally formed, while the movable arm and the connecting arm are slidably connected and fixed with bolts.

[0018] (III) Technical Effects

[0019] The above structure gives this solution the following advantages:

[0020] 1. Variable shape: By changing the posture of multiple sets of strip brushes, the grinding tool can be flexibly switched between flat grinding disc and roller grinding roller, realizing "one machine for multiple uses", significantly improving the versatility and applicability of the tool, and can meet the rust removal needs of steel with various shapes such as flat, cylindrical, arc, and groove.

[0021] 2. Structural Integration: Compared to the traditional method of using different types of tools, this solution integrates multiple polishing functions into a single handheld tool, reducing the number of tools, making it easier to carry and operate, and improving work efficiency. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0024] Figure 2 This is a cross-sectional view of the strip steel brush in this design;

[0025] Figure 3 This is a diagram showing the adjustment status of the connecting arm length in this solution;

[0026] Figure 4 This is an exploded view of the connecting arm and the strip steel brush in this design.

[0027] Among them, 1. Electric main unit, 11. Rotating shaft, 2. Mounting bracket, 21. Connecting sleeve, 22. Connecting arm, 221. Fixed arm, 222. Movable arm, 2221. Insertion hole, 3. Strip steel brush, 31. Brush clamp, 311. Protruding shaft, 312. Connecting hole, 32. Steel wire brush, 4. Pin rod, 41. Pin retaining ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3 The handheld electric rust removal tool for steel includes an electric main unit 1, which has a rotating shaft 11 at its end. The main unit drives the rotating shaft 11 to rotate. The electric main unit 1 adopts existing technology, and its specific structure will not be described in detail.

[0030] It also includes a dual-mode grinding mechanism, consisting of a mounting frame 2 fixed to the end of the rotating shaft 11 and multiple sets of strip steel brushes 3 distributed around the periphery of the mounting frame 2. There are two or more sets of strip steel brushes 3 distributed around the periphery of the mounting frame 2, but the number should not be too large, as too many sets will affect the complexity of operation; preferably, there are 2 to 6 sets. The mounting frame 2 consists of a connecting sleeve 21 fixed to the rotating shaft 11 and multiple sets of evenly spaced connecting arms 22 extending around the periphery of the connecting sleeve 21. Each set of strip steel brushes 3 is mounted on a corresponding set of connecting arms 22. The installation posture of the strip steel brushes 3 on the connecting arms 22 can be adjusted, such as horizontal or vertical installation. When horizontally installed, the multiple sets of strip steel brushes 3 form a flat grinding brush; when vertically installed, the multiple sets of strip steel brushes 3 form a roller grinding brush. By simply adjusting the installation posture of the strip steel brushes 3, the two modes of flat grinding brush and roller grinding brush can be switched, improving the versatility of the tool.

[0031] In one set of embodiments

[0032] Please see Figures 2-4A convex shaft 311 is fixed on the strip steel brush 3. The convex shaft 311 is rotatably connected to the end of the connecting arm 22. At the same time, a connecting hole 312 is also provided on the strip steel brush 3. Two sets of connecting holes 312 are distributed around the convex shaft 311. The included angle between the two sets of connecting holes 312 is 90°. A set of insertion holes 2221 is provided on the connecting arm 22. When the convex shaft 311 rotates and drives one set of connecting holes 312 to be aligned with the insertion hole 2221, the strip steel brush 3 is in a flat state. When the other set of connecting holes 312 is aligned with the insertion hole 2221, the strip steel brush 3 is in a vertical state. When the strip steel brush 3 is changed to a vertical or flat state, the posture of the strip steel brush 3 can be fixed by a set of pins 4 passing through the aligned insertion hole 2221 and a connecting hole 312. The locking of the pins 4 can be achieved by a pin retainer 41 passing through the hole at the end.

[0033] In one set of embodiments

[0034] Please see Figures 2-4 The strip steel brush 3 consists of a brush clamp 31 (both the convex shaft 311 and the connecting hole 312 are set on the brush clamp 31) and a wire brush 32 (the wire material of the wire brush 32 can be stainless steel wire or high carbon steel wire. Stainless steel wire has good rust prevention properties and is suitable for rust removal in humid environments or for steel with high rust prevention requirements; high carbon steel wire has high hardness and strong wear resistance and is suitable for treating severely rusted steel). The brush head of the wire brush 32 is placed in the clamping mouth of the brush clamp 31 and fixed by bolts passing through the brush clamp 31 and the brush head.

[0035] The detachable connection between the brush clip 31 and the wire brush 32 makes it easy to replace the wire brush 32 after it wears out.

[0036] In one set of embodiments

[0037] Please see Figures 3-4 The connecting arm 22 is a telescopic arm, which allows the diameter of the flat grinding brush or roller grinding brush to be adjusted as needed. Specifically:

[0038] The connecting arm 22 consists of a fixed arm 221 and a movable arm 222. The fixed arm 221 is integrally formed with the connecting sleeve 21, while the movable arm 222 is slidably connected to the connecting arm 22 and is fixed by bolts that pass through the threaded holes on the wall of the movable arm 222 and press against the movable arm 222. The convex shaft 311 is rotatably connected to the end of the movable arm 222, and the insertion hole 2221 is also located at the end of the movable arm 222 and close to the convex shaft 311.

[0039] Furthermore, there are scales along the length of the movable arm 222. By setting the scales, it is easy to view the overall length change of the connecting arm 22, so that the length adjustment of multiple sets of connecting arms 22 can be kept as consistent as possible during adjustment.

[0040] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0041] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld electric rust removal tool for steel, comprising an electric main unit (1) with a rotating shaft (11) at its end, characterized in that: Also includes The dual-mode grinding mechanism includes a mounting bracket (2) fixed to the end of the rotating shaft (11) and multiple sets of strip steel brushes (3) distributed around the mounting bracket (2). The strip steel brush (3) can be installed in an adjustable position on the mounting frame (2), such as horizontal or vertical installation.

2. The handheld electric rust removal tool for steel according to claim 1, characterized in that: The mounting bracket (2) consists of a connecting sleeve (21) fixed on the rotating shaft (11) and multiple sets of evenly spaced connecting arms (22) extending around the connecting sleeve (21), with each set of strip steel brushes (3) mounted on a corresponding set of connecting arms (22); A convex shaft (311) is fixed on the strip steel brush (3). The convex shaft (311) is rotatably connected to the end of the connecting arm (22). At the same time, a connecting hole (312) is also provided on the strip steel brush (3). Two sets of connecting holes (312) are distributed around the convex shaft (311). A set of insertion holes (2221) is provided on the connecting arm (22). When the two sets of connecting holes (312) are directly opposite the insertion hole (2221), a set of pins (4) passes through the opposite insertion hole (2221) and a connecting hole (312) to control the strip steel brush (3) to be in the flat and vertical positions respectively.

3. The handheld electric rust removal tool for steel according to claim 2, characterized in that: The strip steel brush (3) consists of a brush clamp (31) and a wire brush (32). The brush head of the wire brush (32) is fixed in the clamping mouth of the brush clamp (31). The convex shaft (311) and the connecting hole (312) are both provided on the brush clamp (31).

4. A handheld electric rust removal tool for steel according to claim 2 or 3, characterized in that: The connecting arm (22) is a telescopic arm.

5. A handheld electric rust removal tool for steel according to claim 4, characterized in that: The connecting arm (22) consists of a fixed arm (221) and a movable arm (222). The fixed arm (221) is integrally formed with the connecting sleeve (21), while the movable arm (222) is slidably connected to the connecting arm (22) and fixed with bolts.

6. A handheld electric rust removal tool for steel according to claim 5, characterized in that: The movable arm (222) has markings along its length.

Images