Polishing and rust removing device

Abstract

The utility model discloses a polishing and derusting device, belongs to the technical field of electric tools, and is used for solving the technical problems that when an angle grinder is used for adjusting the protection position of a protective cover, the operation steps are tedious, and much construction time is occupied. The polishing and rust removing device comprises a polishing assembly, a protection assembly and a locking assembly. The polishing assembly comprises a rotating shaft; the protection assembly is located between the grinding assembly and the locking assembly, the periphery of the rotating shaft is sleeved with the protection assembly, and the protection assembly can rotate around the rotating shaft and move in the axial direction of the rotating shaft. The locking assembly comprises a locking structure and an extrusion part; the extrusion part can move towards the direction of the protection assembly and tightly press the protection assembly on the polishing assembly; and the locking structure can fix the direction of the extrusion part, so that the position between the protection assembly and the grinding assembly is locked. The polishing and derusting device is quick to operate and improves the construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology and relates to a grinding and rust removal device. Background Technology

[0002] When using existing angle grinders to remove rust from steel structures, the protective cover's position and range are fixed. When removing rust from corners or more complex structures, workers need to adjust the angle and method of holding the grinder. However, as the angle and method of holding the grinder change, the protective cover cannot reliably protect against the fragments and debris generated during rust removal. These debris can splash onto the worker, severely affecting the protective cover's effectiveness and reducing the safety of using the angle grinder.

[0003] Therefore, a clamping structure is usually installed on the protective cover. When it is necessary to adjust the angle of the protective cover, tools such as screwdrivers need to be moved between the grinder and the grinding wheel, the locking screws on the clamps need to be loosened, the position and angle of the protective cover need to be adjusted, and then the screws need to be tightened to fix it. This adjustment process requires the use of additional tools, is cumbersome, and takes up a lot of construction time. Utility Model Content

[0004] Based on the above analysis, this utility model aims to provide a grinding and rust removal device to solve the technical problem that the operation steps are cumbersome and take up a lot of construction time when adjusting the protective position of the protective cover of the existing angle grinder.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions.

[0006] This utility model provides a grinding and rust removal device, including a grinding component, a protective component, and a locking component; the grinding component includes a rotating shaft; the protective component is located between the grinding component and the locking component, and the protective component can rotate around the rotating shaft; the locking component includes a pressing component and a locking structure; the pressing component is used to press the protective component; the locking structure is used to lock and fix the position of the pressing component.

[0007] Furthermore, the extrusion component is movable toward the protective assembly; the extrusion component includes an extrusion rod and an extrusion head, with the extrusion head fixed to one end of the extrusion rod.

[0008] Furthermore, the locking structure is a screw locking structure, and the outer circumference of the extrusion rod is provided with external threads.

[0009] Furthermore, the locking assembly also includes a mounting base through which the compression rod passes.

[0010] Furthermore, the mounting base is provided with a threaded hole that matches the external thread of the extrusion rod.

[0011] Furthermore, the extrusion head is a circular plate.

[0012] Furthermore, the protective component includes a collar that is fitted over the shaft.

[0013] Furthermore, a thrust bearing is fixed on the collar.

[0014] Furthermore, the grinding assembly also includes a convex ring, which is located at one end of the rotating shaft and arranged opposite to the thrust bearing.

[0015] Furthermore, the locking assembly also includes a handle located at the other end of the compression lever.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] 1. The grinding and rust removal device of this utility model, by setting a rotatable protective component, can flexibly adjust the protective angle and position, thereby improving the flexibility and safety of the grinding and rust removal device.

[0018] 2. The grinding and rust removal device of this utility model, by setting a locking component, can quickly unlock and lock the protective component, making it easy to adjust and fix the protective component to the target position, so that the protective component can effectively block the generated fragments and debris during rust removal.

[0019] 3. The grinding and rust removal device of this utility model, by setting a screw-type locking structure, can quickly unlock and lock the protective components without the use of tools, saving operation time and improving construction efficiency.

[0020] 4. The grinding and rust removal device of this utility model, by setting a convex ring, can not only limit the stroke of the protective component, but also squeeze and lock the two sides of the protective component together with the extrusion component.

[0021] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the grinding and rust removal device according to an embodiment of the present invention;

[0023] Figure 2 This is a partial exploded structural diagram of the grinding and rust removal device according to an embodiment of the present invention;

[0024] Figure 3 This is one of the partial structural schematic diagrams of the grinding and rust removal device according to an embodiment of the present utility model;

[0025] Figure 4 This is a second partial structural schematic diagram of the grinding and rust removal device according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the switch arrangement structure of the grinding and rust removal device according to an embodiment of this utility model.

[0027] Figure label:

[0028] 1-Drive component; 2-Grinding assembly; 21-Transmission rod; 211-External thread; 212-Rotating shaft; 213-Convex ring; 22-Mounting ring; 23-Grinding wheel; 3-Protective assembly; 31-Protective cover; 32-Collar; 321-Extrusion hole; 322-Thrust bearing; 4-Locking assembly; 41-Mounting base; 42-Extrusion rod; 43-Extrusion head; 44-Handle; 441-Groove; 5-Handheld assembly; 6-Switch; 61-First switch; 62-Second switch. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0030] This embodiment provides a grinding and rust removal device for treating rust on the surface of steel structures or other workpieces.

[0031] like Figure 1 As shown, the grinding and rust removal device of this embodiment includes a driving component 1, a grinding component 2, a protective component 3, a locking component 4, and a handheld component 5. In this embodiment, the grinding and rust removal device can quickly unlock and lock the protective component 3 by operating the locking component 4, facilitating the adjustment and fixing of the protective component 3 to the target position. This allows the protective component 3 to effectively shield against generated fragments and debris during rust removal, improving construction efficiency.

[0032] like Figure 3 As shown, the grinding assembly 2 includes a transmission rod 21, a mounting ring 22, and a grinding wheel 23.

[0033] like Figure 4 As shown, one end of the transmission rod 21 is provided with an external thread 211, and the other end is provided with a rotating shaft 212. The rotating shaft 212 is installed on the driving end of the driving component 1. The driving end of the driving component 1 is connected to the rotating shaft 212 and can drive the transmission rod 21 to rotate.

[0034] The outer periphery of the transmission rod 21 is provided with a convex ring 213, which is located between the external thread 211 and the rotating shaft 212.

[0035] like Figure 3 and Figure 4 As shown, the mounting ring 22 is mounted on the outer periphery of the transmission rod 21 via the external thread 211.

[0036] like Figure 2 and Figure 3 As shown, the grinding wheel 23 is sleeved on the outer circumference of the transmission rod 21 and is located between the convex ring 213 and the mounting ring 22. By rotating the mounting ring 22 inward at one end of the transmission rod 21, the two sides of the grinding wheel 23 can make pressing contact with the convex ring 213 and the mounting ring 22 respectively, thereby achieving the locking installation of the grinding wheel 23 on the transmission rod 21.

[0037] In use, the drive component 1 drives the transmission rod 21 to rotate, and the transmission rod 21 drives the grinding wheel 23 to rotate synchronously and stably to grind and remove rust from the workpiece surface. When the grinding wheel 23 needs to be replaced, the mounting ring 22 is rotated outward along the outer surface of the transmission rod 21. At this time, the grinding wheel 23 loses the pressure of the mounting ring 22 and can be quickly replaced.

[0038] like Figure 4 As shown, the protective component 3 includes a protective cover 31 and a collar 32. The protective cover 31 is disposed on one side of the grinding wheel 23 and located between the grinding wheel 23 and the drive component 1.

[0039] The collar 32 is fixedly installed in the center of the protective cover 31. A pressing hole 321 is provided on the side of the collar 32 opposite to the grinding wheel 23. The inner diameter of the pressing hole 321 is larger than the outer diameter of the convex ring 213 of the transmission rod 21. A thrust bearing 322 is provided inside the pressing hole 321. The convex ring 213 and the thrust bearing 322 are arranged opposite to each other.

[0040] The rotating shaft 212 passes through the collar 32 and is rotatably connected to the collar 32 via the thrust bearing 322. The protective component 3 can rotate around the rotating shaft 212 and can move along the axial direction of the rotating shaft 212.

[0041] In this embodiment, the rotating connection between the rotating shaft 212 and the collar 32 allows the protective cover 31 to rotate around the rotating shaft 212, thereby flexibly adjusting the position and angle of the protective cover 31 so that the protective cover 31 can protect the required area, effectively block the fragments and debris generated during rust removal, expand the protection range of the protective cover 31, and improve the flexibility and safety of the grinding and rust removal device.

[0042] like Figure 2As shown, the locking component 4 includes a locking structure and a pressing component. The pressing component can move towards the protective component 3 to press between the thrust bearing 322 and the convex ring 213, thereby limiting the position of the protective component 3. The locking structure can lock and fix the position of the pressing component, thereby locking the position of the protective component 3 on the driving component 1.

[0043] Preferred, such as Figure 2 As shown, the locking assembly 4 includes a mounting base 41, which is fixedly mounted on the side of the drive component 1. The pressing component includes a pressing rod 42, a pressing head 43, and a handle 44. The pressing rod 42 passes through the mounting base 41 and is perpendicular to the protective cover 31. A locking structure is provided between the pressing rod 42 and the mounting base 41; preferably, the locking structure is a threaded locking structure, the pressing rod 42 is a screw, and the mounting base 41 has a matching threaded groove. The locking structure can also be a spring clip or other locking structures.

[0044] In one embodiment, the inner wall shape and size of the mounting base 41 are the same as the outer shell shape and size of the driving component 1, so that the mounting base 41 can be fitted over the driving component 1; the inner wall surface of the mounting base 41 has a high coefficient of friction, so that the mounting base 41 will not detach from the driving component 1 when the grinding and rust removal device is working. In another embodiment, the mounting base 41 has the ability to elastically deform. After elastic deformation, the mounting base 41 fits over the driving component 1 and hugs the driving component 1, so that the mounting base 41 will not detach from the driving component 1 when the grinding and rust removal device is working.

[0045] The extrusion head 43 is fixedly installed at one end of the extrusion rod 42. Preferably, the extrusion head 43 is a circular plate perpendicular to the extrusion rod 42, which can make the protective cover 31 bear force evenly. The extrusion head 43 is made of engineering plastic, hard rubber, or rough-surfaced metal. The extrusion head 43 can make extrusion contact with the surface of one side of the protective cover 31, thereby extruding both sides of the protective cover 31 together with the convex ring 213 on the other side, so as to lock and fix the position between the protective cover 31 and the grinding assembly 2.

[0046] A handle 44 is fixedly installed at the other end of the extrusion rod 42 for hand operation of the locking assembly 4. Preferably, the outer periphery of the handle 44 is evenly provided with grooves 441 to facilitate rotation of the handle 44, causing the screw-type extrusion rod 42 to rotate and move in a direction perpendicular to the extrusion head 43, thereby causing the extrusion head 43 to extrude and lock or unlock the protective cover 31.

[0047] When the position of the protective cover 31 needs to be adjusted, rotate the handle 44 to move the pressing rod 42 away from the protective cover 31 until the pressing head 43 separates from the surface of the protective cover 31, thus unlocking the protective component 3. Rotate the protective cover 31 to the position requiring protection, and rotate the handle 44 in the opposite direction to move the pressing rod 42 closer to the protective cover 31. After the pressing head 43 contacts the surface of the protective cover 31, it can push the protective cover 31 towards the grinding wheel 23. Continue rotating the handle 44 until the convex ring 213 contacts one side of the thrust bearing 322. The convex ring 213 limits the stroke of the protective component 3, and the two sides of the protective cover 31 are squeezed by the pressing head 43 and the convex ring 213 respectively. Continue rotating the handle 44 until the protective cover 31 is pressed tightly, thus locking the position and angle of the protective cover 31.

[0048] The grinding and rust removal device in this embodiment can quickly adjust the angle and position of the protective cover 31 without any tools. The operation process is simple and quick, saving operation time and improving construction efficiency.

[0049] Preferably, the locking components 4 are in two sets, symmetrically arranged on both sides of the center line of the transmission rod 21, so that the protective cover 31 can be locked by the pressing head 43 when it rotates to any angle.

[0050] Preferred, such as Figure 1 As shown, the protective cover 31 has multiple sets of compression grooves on its side near the locking component 4 for auxiliary positioning. During use, the compression grooves facilitate the insertion of the compression head 43 into the grooves, stably fixing the position of the protective cover 31. Figure 5 As shown, the handheld component 5 is equipped with a switch 6, including a first switch 61 and a second switch 62. This embodiment changes the traditional method of starting the device with a single switch. The first switch 61 and the second switch 62 are connected in series with the internal circuit of the handheld component 5. When the operator uses the grinding and rust removal device to treat the rust on the surface of the steel structure, he must hold the handheld component 5 with both hands at the same time and press the first switch 61 and the second switch 62 simultaneously to drive the grinding component 2 to work, thus ensuring the safety of the equipment during operation.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding and rust removal device, characterized in that, It includes a polishing component (2), a protective component (3), and a locking component (4); The polishing assembly (2) includes a rotating shaft (212); The protective component (3) is located between the polishing component (2) and the locking component (4), and the protective component (3) is rotatable around the rotating shaft (212); The locking component (4) includes a pressing component and a locking structure; The extrusion component is used to extrude the protective assembly (3); The locking structure is used to lock and fix the position of the extrusion component.

2. The grinding and rust removal device according to claim 1, characterized in that, The extrusion component is movable toward the protective assembly (3); the extrusion component includes an extrusion rod (42) and an extrusion head (43), the extrusion head (43) being fixed to one end of the extrusion rod (42).

3. The grinding and rust removal device according to claim 2, characterized in that, The locking structure is a screw locking structure, and the outer periphery of the extrusion rod (42) is provided with external threads.

4. The grinding and rust removal device according to claim 3, characterized in that, The locking assembly (4) also includes a mounting base (41) through which the compression rod (42) passes.

5. The grinding and rust removal device according to claim 4, characterized in that, The mounting base (41) is provided with a threaded hole, which matches the external thread of the extrusion rod (42).

6. The grinding and rust removal device according to claim 2, characterized in that, The extrusion head (43) is a circular plate.

7. The grinding and rust removal device according to claim 6, characterized in that, The protective component (3) includes a collar (32) which is sleeved on the outside of the rotating shaft (212).

8. The grinding and rust removal device according to claim 7, characterized in that, A thrust bearing (322) is fixed inside the collar (32).

9. The grinding and rust removal device according to claim 8, characterized in that, The grinding assembly (2) also includes a convex ring (213), which is located at one end of the rotating shaft (212) and is arranged opposite to the thrust bearing (322).

10. The grinding and rust removal device according to any one of claims 2 to 9, characterized in that, The locking assembly (4) also includes a handle (44) located at the other end of the compression rod (42).

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