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CN-224209721-U - Quick-change grinding wheel cover for angle grinder

CN224209721UCN 224209721 UCN224209721 UCN 224209721UCN-224209721-U

Abstract

The utility model discloses a quick-change grinding wheel cover for an angle grinder, which comprises a head shell, wherein a front cover fixedly connected with the head shell is arranged on the head shell, an output shaft is arranged between the head shell and the front cover, a grinding wheel cover body rotationally connected with the front cover is arranged on the outer side of the front cover, a quick-press limiting piece for limiting the rotation angle of the grinding wheel cover body is further arranged on the front cover, a reset spring is arranged between the quick-press limiting piece and the front cover, a grinding wheel piece is further arranged on the output shaft, a front pressing plate and a rear pressing plate are respectively arranged on the front side and the rear side of the grinding wheel piece, the grinding wheel piece is clamped between the front pressing plate and the rear pressing plate, and the grinding wheel piece is driven to synchronously rotate when the output shaft rotates. The front cover is provided with the grinding wheel cover body which is rotationally connected with the front cover, the rotation angle of the grinding wheel cover body is limited by the quick-press limiting piece, the grinding wheel cover body and the front cover are limited by the bulge, and when the grinding wheel cover body rotates to the dismounting position, the grinding wheel cover body can be directly separated from the front cover, so that the dismounting is convenient.

Inventors

  • XIONG NANJUN

Assignees

  • 金华市蓝标工具科技有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (9)

  1. 1. A quick-change grinding wheel cover for an angle grinder comprises a head shell (1), wherein a front cover (2) fixedly connected with the head shell is arranged on the head shell (1), an output shaft (3) is arranged between the head shell (1) and the front cover (2), and is characterized in that a grinding wheel cover body (4) which is rotationally connected with the front cover (2) is arranged on the outer side of the front cover, a quick-press limiting piece (5) used for limiting the rotation angle of the grinding wheel cover body (4) is further arranged on the front cover (2), a reset spring (6) is arranged between the quick-press limiting piece (5) and the front cover (2), grinding wheels (7) are further arranged on the output shaft (3), a front pressing plate (8) and a rear pressing plate (9) are respectively arranged on the front side and the rear side of each grinding wheel (7), the grinding wheels (7) are clamped between the front pressing plate (8) and the rear pressing plate (9), and the output shaft (3) drives the grinding wheels (7) to rotate synchronously.
  2. 2. The quick-change grinding wheel cover for the angle grinder according to claim 1, wherein the output shaft (3) is rotationally connected with the front cover (2), a limiting step (31) for installing a rear pressing plate (9) is arranged on the output shaft (3), the rear pressing plate (9) is installed on the limiting step (31), the output shaft (3) and the rear pressing plate (9) synchronously rotate, and the front pressing plate (8), the rear pressing plate (9) and the grinding wheel (7) are fixed through screws.
  3. 3. The quick-change grinding wheel cover for the angle grinder, which is disclosed in claim 1, is characterized in that a plurality of first fasteners (10) used for fixing are arranged between the head shell (1) and the front cover (2), guide posts (11) are further inserted in the front cover (2), second fasteners (12) used for fixing the three are arranged between the guide posts (11), the head shell (1) and the front cover (2), quick-press limiting pieces (5) are slidably arranged on the guide posts (11), a grinding wheel cover body (4) connected with the quick-press limiting pieces (5) in a rotating mode is arranged on the front cover (2), the grinding wheel cover body (4) is arranged adjacent to the grinding wheel cover body (4), and annular hoops (41) integrally formed with the grinding wheel cover body (4) are arranged on the grinding wheel cover body.
  4. 4. A quick change grinding wheel cover for an angle grinder according to claim 3, wherein the first fastening piece (10) and the second fastening piece (12) are screws, the axial length of the second fastening piece (12) is larger than that of the first fastening piece (10), the guide posts (11) are provided with first steps (111) in pairs, the guide posts (11) are provided with kidney-shaped holes (51) in pairs, the guide posts (11) are penetrated in the kidney-shaped holes (51), the quick press limiting piece (5) is mounted on the first steps (111) in a fitting mode, the second fastening piece (12) penetrates through the kidney-shaped holes (51) and extends to be mounted in the head shell (1), and the thickness of the quick press limiting piece (5) is matched with the height of the protrusions on the first steps (111).
  5. 5. The quick-change grinding wheel cover for the angle grinder according to claim 3, wherein a plurality of uniformly distributed limiting holes (42) are formed in the annular hoop (41), limiting protrusions (52) are arranged at the tail ends of the quick-press limiting pieces (5), the outline of the limiting protrusions (52) is mutually matched with the outline of the limiting holes (42), and when the limiting protrusions (52) are clamped in the limiting holes (42), the grinding wheel cover body (4) and the front cover (2) keep a relatively static state.
  6. 6. The quick-change grinding wheel cover for the angle grinder according to claim 3, wherein a mounting groove (13) for mounting the return spring (6) is formed in the head shell (1), the return spring (6) is arranged in the mounting groove (13), a poking part (53) for pushing the return spring (6) is arranged on the quick-press limiting piece (5), the return spring (6) is in a compressed state in a default state, one end of the return spring (6) abuts against the bottom of the mounting groove (13), and the other end of the return spring (6) is inserted in the poking part (53).
  7. 7. A quick change grinding wheel cover for an angle grinder according to claim 3, wherein the front cover (2) is provided with an annular groove (14), a sealing ring (15) is arranged in the annular groove (14), and the sealing ring (15) is arranged between the annular groove (14) and an annular hoop (41).
  8. 8. The quick-change grinding wheel cover for the angle grinder, according to claim 7, is characterized in that a plurality of first protrusions (16) which are uniformly distributed are arranged on the front cover (2), the first protrusions (16) are arranged adjacent to the annular groove (14), a plurality of second protrusions (17) which are uniformly distributed are arranged on the inner wall of the annular hoop (41), and the second protrusions (17) are arranged in the annular groove (14) when the annular hoop (41) is installed on the front cover (2).
  9. 9. The quick change grinding wheel cover for an angle grinder according to claim 8, characterized in that a gap is provided between any two of said first protrusions (16), said second protrusions (17) being able to pass through the gap between two of said first protrusions (16).

Description

Quick-change grinding wheel cover for angle grinder Technical Field The utility model belongs to the technical field of angle grinders, and particularly relates to a quick-change grinding wheel cover for an angle grinder. Background The angle grinder is a commonly used electric tool, and the angle grinder includes the host computer casing, often is equipped with the emery wheel cover that is used for protecting the operator on the host computer casing, and the emery wheel cover often is through opening staple bolt and screw fixed mounting on the host computer casing, has disclosed an electric tool's emery wheel cover in the patent text of current patent number CN112313036B, and the staple bolt position is the open state now, adopts screw and nut to connect, and during emery wheel cover and angle grinder protecgulum locking, need screw down with the help of the bottle opener. When the grinding wheel cover needs to be adjusted, the grinding wheel cover needs to be screwed Loosening the screw, and tightening the screw after adjusting the angle. When the grinding wheel cover needs to be replaced, the screw needs to be unscrewed, a new grinding wheel cover needs to be replaced, and finally the screw is screwed again. The operation mode is not very convenient for users to use and has poor experience. Accordingly, there is a need to design a quick change grinding wheel cover for an angle grinder to overcome the above problems. Disclosure of Invention The utility model designs a quick-change grinding wheel cover for an angle grinder aiming at the problems in the prior art, wherein a grinding wheel cover body which is rotationally connected with the front cover is arranged on the front cover, and the rotation angle of the grinding wheel cover body is limited by a quick-press limiting piece; spacing is carried out through protruding between wheel casing body and the protecgulum, and the wheel casing body can directly break away from the protecgulum when the wheel casing body rotates to the dismantlement position, and it is convenient to dismantle. The quick-change grinding wheel cover for the angle grinder comprises a head shell, wherein a front cover fixedly connected with the head shell is arranged on the head shell, an output shaft is arranged between the head shell and the front cover, a grinding wheel cover body which is rotationally connected with the front cover is arranged on the outer side of the front cover, a quick-press limiting piece used for limiting the rotation angle of the grinding wheel cover body is further arranged on the front cover, a reset spring is arranged between the quick-press limiting piece and the front cover, a grinding wheel is further arranged on the output shaft, a front pressing plate and a rear pressing plate are respectively arranged on the front side and the rear side of the grinding wheel, the grinding wheel is clamped between the front pressing plate and the rear pressing plate, and the grinding wheel is driven to synchronously rotate when the output shaft rotates. Preferably, the output shaft is rotationally connected with the front cover, a limiting step for installing the rear pressing plate is arranged on the output shaft, the rear pressing plate is installed on the limiting step, the output shaft and the rear pressing plate synchronously rotate, and the front pressing plate, the rear pressing plate and the grinding wheel are fixed through screws. Through setting up spacing step, avoid the relative output shaft rotation of back clamp plate, then set up front clamp plate and back clamp plate respectively at the front and back both ends of grinding wheel, grinding wheel and output shaft fixed effect is better like this. Preferably, a plurality of first fasteners used for fixing are arranged between the head shell and the front cover, a guide post is also inserted in the front cover, a second fastener used for fixing the three is arranged among the guide post, the head shell and the front cover, a quick-pressing limiting piece is slidably arranged on the guide post, a grinding wheel cover body rotationally connected with the quick-pressing limiting piece is arranged on the front cover, the quick-pressing limiting piece is arranged adjacent to the grinding wheel cover body, and an annular hoop integrally formed with the grinding wheel cover body is arranged on the grinding wheel cover body. Preferably, the first fastening piece and the second fastening piece are screws, the axial length of the second fastening piece is larger than that of the first fastening piece, first steps are arranged on the guide posts, the guide posts are arranged in pairs, waist-shaped holes are arranged on the quick-press limiting pieces in pairs, the guide posts are arranged in the waist-shaped holes in a penetrating mode, the quick-press limiting pieces are mounted on the first steps in a fitting mode, the second fastening piece penetrates through the waist-shaped holes and extends into the head shel