Accessory of angle grinder

Abstract

The utility model discloses an accessory of an angle grinder, belongs to the technical field of handheld electric operation machines, and aims to expand functions of an existing angle grinder. The accessory comprises a mounting plate, a mounting frame, a bottom plate, an elastic supporting piece, an eccentric driving assembly, a guide mechanism and a tool bit assembly. The mounting frame is fixedly connected with the mounting plate, the mounting plate and the bottom plate are connected through the elastic supporting piece, the eccentric driving assembly drives the bottom plate to move, and the guide mechanism guides the bottom plate to move. The accessory can be conveniently connected with the angle grinder, the effect that the angle grinder can carry out carpet shoveling operation is achieved, a user does not need to purchase a special carpet shoveling operation machine independently, cost is reduced for the user, rapid installation and detachment of the accessory and the angle grinder can be achieved, and operation of the user is convenient.

Description

Technical Field

[0001] This utility model relates to an angle grinder accessory that can convert an angle grinder into a carpet removal tool, belonging to the field of power tool technology. Background Technology

[0002] Carpet scrapers, as tools specifically designed for quickly and efficiently removing carpets from floors, play an important role in carpet replacement, cleaning, or maintenance. However, their working heads and main unit are usually designed as a single fixed unit, limiting their use to a single type of task such as removing carpets or floors. Even when the working head is separated from the main unit, the main unit cannot be connected to working heads for other task types.

[0003] Angle grinders are specialized machine tools primarily used for cutting. To expand their functionality, a specialized working head needs to be designed, fixed to the angle grinder, and the angle grinder used as a power source to drive the working head for operation.

[0004] In the existing technology, there are no accessories that can be attached to an angle grinder for carpet scraping operations. How to convert an angle grinder into a carpet scraper tool has become one of the research topics of this utility model. There is still room for further research on this technical problem. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model aims to provide an accessory that can be quickly and conveniently attached to an angle grinder, thereby expanding the angle grinder's functionality and enabling it to perform carpet removal operations.

[0006] The technical solution of this utility model is as follows:

[0007] An accessory for an angle grinder, comprising:

[0008] Mounting plate, the mounting plate having a central through hole;

[0009] The mounting bracket is located above the mounting plate. The mounting bracket has a left side plate and a right side plate. The lower end of the left side plate is provided with an inwardly bent left connecting foot plate, and the lower end of the right side plate is provided with an inwardly bent right connecting foot plate. There is a through groove between the left connecting foot plate and the right connecting foot plate. The mounting bracket is fixedly connected to the mounting plate through the left connecting foot plate and the right connecting foot plate.

[0010] A handle, which is fixedly connected between the upper end of the left side plate and the upper end of the right side plate;

[0011] A bottom plate is arranged below the mounting plate, and an elastic support, an eccentric driving assembly and a guide mechanism are arranged between the mounting plate and the bottom plate, the upper end and the lower end of the elastic support are fixedly connected with the mounting plate and the bottom plate respectively, the eccentric driving assembly drives the bottom plate to move, and the guide mechanism guides the moving direction of the bottom plate.

[0012] The bottom plate is fixedly provided with a tool bit assembly at the front end.

[0013] Further, the left side plate and the right side plate are provided with first mounting holes, and the first mounting holes are used for fixedly connecting the accessory with the angle grinder.

[0014] Further, the left connecting foot plate and the right connecting foot plate are provided with second mounting holes, and the second mounting holes are arranged along the direction parallel to the longitudinal direction; the mounting plate is provided with third mounting holes corresponding to the second mounting holes at the outer periphery of the central through hole; the upper end of the elastic support is provided with a second threaded fixing hole, and a second fixing bolt passes through the second mounting hole, the third mounting hole and is screwed into the second threaded fixing hole from top to bottom, so as to fixedly connect the mounting frame, the mounting plate and the elastic support.

[0015] Further, the lower end of the elastic support is provided with a third threaded fixing hole, and the bottom plate is provided with a fourth mounting hole, and a third fixing bolt passes through the fourth mounting hole and is screwed into the third threaded fixing hole, so as to fixedly connect the bottom plate with the elastic support.

[0016] Further, the tool bit assembly comprises a blade mounting plate, a blade and a blade pressing plate, the rear end hole of the blade mounting plate is fixed to the front end of the bottom plate through the third fixing bolt, the bolt passes through the front end hole of the blade mounting plate, the mounting groove of the blade, the through hole of the blade pressing plate and is screwed into the nut (33) to fix the blade to the blade mounting plate.

[0017] The rear end hole is arranged concentrically with the fourth mounting hole of the bottom plate and the third threaded fixing hole of the lower end of the support;

[0018] The rear end hole and the front end hole are further provided with an intermediate fixing hole, and the blade mounting plate can be further fixed to the bottom plate through the bolt and the nut by means of the fixing hole.

[0019] Further, the eccentric driving assembly comprises a bearing mounting seat, a bearing is pressed into the bearing mounting seat, an eccentric bearing is installed in the bearing, a balance block is arranged above the eccentric bearing, and the threaded connection part is threadedly connected between the balance block and the eccentric bearing.

[0020] The bearing mounting seat has a lower flange, the bottom plate is provided with a bottom plate through hole, and the lower flange is inserted into the bottom plate through hole;

[0021] The bearing mounting seat is provided with a fifth mounting hole, and the bottom plate through hole is provided with a sixth mounting hole in the outer periphery;

[0022] The bottom plate is further provided with a cover plate below, and the cover plate is provided with a seventh mounting hole;

[0023] A fourth fixing bolt passes through the seventh mounting hole, the sixth mounting hole and is screwed into the fifth mounting hole, so that the bearing mounting seat, the bottom plate and the cover plate are fixedly connected.

[0024] Further, the guide mechanism comprises an upper guide block fixedly connected to the mounting plate, the upper guide block has a downwardly extending guide column, and an oil-containing bearing is sleeved on the guide column; a lower guide block fixedly connected to the bottom plate, the lower guide block is provided with a guide groove; and the oil-containing bearing is located in the guide groove.

[0025] Further, the mounting frame further comprises a front baffle arranged at the front end, and the front baffle, the left side plate, the right side plate, the left connecting foot plate and the right connecting foot plate are integrally formed metal sheet metal parts.

[0026] Further, the elastic supporting member is four high-elastic rubber members arranged in a rectangular shape.

[0027] Further, the mounting plate and the bottom plate are metal sheet metal stamping parts.

[0028] Compared with the prior art, the accessory can be conveniently connected with the angle grinder, the angle grinder can also perform carpet removal operation, the user does not need to separately purchase a special carpet removal operation machine, the cost of the user is reduced, the accessory and the angle grinder can be quickly installed and detached, and the user is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of the accessory of the utility model;

[0030] Figure 2 is another schematic view of the accessory of the utility model;

[0031] Figure 3 is a top view schematic view of the accessory of the utility model;

[0032] Figure 4 is Figure 3 the sectional view along the line A-A in figure 1;

[0033] Figure 5 is Figure 3 the sectional view along the line B-B in figure 1;

[0034] Figure 6 is another exploded structural schematic view of the accessory of the utility model;

[0035] Figure 7 is another exploded structural schematic view of the accessory of the utility model;

[0036] Figure 8 is a structural schematic view of the mounting plate;

[0037] Figure 9 is a structural schematic view of the mounting frame;

[0038] Figure 10 is a structural schematic view of the eccentric drive assembly;

[0039] Figure 11 is an exploded structural schematic view of the eccentric drive assembly shown in Figure 10

[0040] Figure 12 is a structural schematic view of the bottom plate;

[0041] Figure 13 is a schematic view of the accessory of the utility model applied to the angle grinder.

[0042] In the figure, 1-angle grinder, 2-accessory, h1-first mounting hole, X-X-longitudinal direction, 8-mounting plate, 81-center through hole, 9-mounting frame, 91-left side plate, 92-right side plate, 93-left connecting foot plate, 94-right connecting foot plate, 95-through slot, 96-front baffle, 300-handle, 10-bottom plate, 11-elastic support, 12-eccentric drive assembly, 13-guide mechanism, 16-second fixing bolt, h2-second mounting hole, h3-third mounting hole, 110-second threaded fixing hole, 111-fourth threaded mounting hole, h4-fourth mounting hole, 17-third fixing bolt, 18-bearing mounting seat, 180-lower flange, 19-bearing, 20-eccentric bearing, 21-balance block, 100-bottom plate through hole, h5-fifth mounting hole, h6-sixth mounting hole, 22-cover plate, 23-fourth fixing bolt, h7-seventh mounting hole, 13-guide mechanism, 24-upper guide block, 25-guide column, 26-oil-containing bearing, 27-lower guide block, 28-guide slot, 14-tool bit assembly, 29-blade mounting plate, 2901-rear end hole, 2902-front end hole, 2903-middle fixing hole, 30-blade, 301-mounting slot, 31-blade pressing plate, 310-via hole, 32-bolt, 33-nut DETAILED DESCRIPTION

[0043] The utility model will be further described below with reference to the drawings.

[0044] Reference Figures 1 to 12 ​As shown, the accessory 2 comprises a mounting plate 8 with a central through hole 81, a mounting frame 9 is arranged above the mounting plate 8, the mounting frame 9 has a left side plate 91 and a right side plate 92, a left connecting foot plate 93 is arranged at the lower end of the left side plate 91 and is bent inward, a right connecting foot plate 94 is arranged at the lower end of the right side plate 92 and is bent inward, and a through slot 95 is formed between the left connecting foot plate 93 and the right connecting foot plate 94. The mounting frame 9 is fixedly connected with the mounting plate 8 through the left connecting foot plate 93 and the right connecting foot plate 94, and the specific connection form between the two can be any one of bolt connection, riveting, welding or a combination thereof.

[0045] A handle (300) is fixedly connected between the upper end of the left side plate 91 and the upper end of the right side plate 92 by a bolt, the handle 300 is arranged along a transverse direction perpendicular to the longitudinal direction X-X, and the center of gravity of the handle 300 is located between the left side plate 91 and the right side plate 92.

[0046] The left side plate 91 and the right side plate 92 are provided with a first mounting hole h1, through which the accessory 2 can be fixedly connected with the angle grinder 1.

[0047] A bottom plate 10 is arranged below the mounting plate 8, and an elastic support 11, an eccentric driving assembly 12 and a guide mechanism 13 are arranged between the mounting plate 8 and the bottom plate 10, the upper end and the lower end of the elastic support 11 are fixedly connected with the mounting plate 8 and the bottom plate 10 respectively, the eccentric driving assembly 12 drives the bottom plate 10 to move, and the guide mechanism 13 guides the movement direction of the bottom plate 10.

[0048] In order to better realize the more reliable connection between the mounting frame 9, the mounting plate 8, the elastic support 11 and the bottom plate 10, and achieve the effect of more stable and compact structure, as a preferred embodiment of the utility model, the following will be combined with Figures 4 to 12 The structure of the mounting frame 9, the mounting plate 8, the elastic support 11 and the bottom plate 10 will be further described.

[0049] The left connecting foot plate 93 and the right connecting foot plate 94 of the mounting frame 9 are provided with a second mounting hole h2, the second mounting hole h2 is arranged along the longitudinal direction X-X, and two second mounting holes h2 are arranged on the left connecting foot plate 93 and the right connecting foot plate 94 respectively. The mounting plate 8 is provided with a third mounting hole h3 corresponding in position and number to the second mounting hole h2 on the outer periphery of the central through hole 81. The upper end of the elastic support 11 is provided with a second threaded fixing hole 110, and a second fixing bolt 16 passes through the second mounting hole h2, the third mounting hole h3 and the second threaded fixing hole 110 in sequence from top to bottom and is screwed into the second threaded fixing hole 110, so as to keep the mounting frame 9, the mounting plate 8 and the elastic support 11 fixedly connected.

[0050] The lower end of the elastic support 11 is provided with a third threaded fixing hole 111, the bottom plate 10 is provided with a fourth mounting hole h4, and the third fixing bolt 17 passes through the fourth mounting hole h4 and is screwed into the third threaded fixing hole 111, so that the bottom plate 8 and the elastic support 11 are fixedly connected.

[0051] The mounting frame 9 further comprises a front baffle 96 arranged at the front end, and the front baffle 96, the left side plate 91, the right side plate 92, the left connecting foot plate 93 and the right connecting foot plate 94 are integrally formed metal sheet parts.

[0052] The elastic support 11 is four high-elastic rubber parts arranged in a rectangular shape.

[0053] The mounting plate 8 and the bottom plate 10 are metal sheet stamping parts.

[0054] Figure 4 、 Figure 6 、 Figure 10 、 Figure 11 An embodiment of the eccentric driving assembly 12 is exemplified.

[0055] The eccentric driving assembly 12 comprises a bearing mounting seat 18, a bearing 19 is pressed into the bearing mounting seat 18, an eccentric bearing 20 is mounted in the bearing 19, and the eccentric bearing 20 has an eccentricity e with the power output shaft 7, a balance block 21 is arranged above the eccentric bearing 20, and the threaded connection part 72 of the lower end of the power output shaft 7 is threadedly connected with the eccentric bearing 20 through the balance block 21, so that the power output shaft 7 can drive the eccentric bearing 20 to rotate together when the power output shaft 7 rotates clockwise, and vice versa, the power output shaft 7 can be separated from the eccentric bearing 20 when the power output shaft 7 rotates counterclockwise.

[0056] In order to drive the bottom plate 10 to move by the eccentric driving assembly 12, the bearing mounting seat 18 has a lower flange 180, the bottom plate 10 is provided with a bottom plate through hole 100, and the lower flange 180 is inserted into the bottom plate through hole 100, so that the bottom plate 10 is driven to move by eccentric rotation.

[0057] The bearing mounting seat 18 is provided with a fifth mounting hole h5, and the outer periphery of the bottom plate through hole 100 is provided with a sixth mounting hole h6.

[0058] The bottom plate 10 is provided with a cover plate 22 below the bottom plate 10 for covering the bottom plate through hole 100, the cover plate 22 is provided with a seventh mounting hole h7, and the fourth fixing bolt 23 passes through the seventh mounting hole h7 and the sixth mounting hole h6 and is screwed into the fifth mounting hole h5, so that the bearing mounting seat (18), the bottom plate (10) and the cover plate (22) are fixedly connected.

[0059] The following will be described with reference to Figure 4 and Figure 6 , a guide mechanism 13 of the utility model is described.

[0060] The guide mechanism 13 comprises an upper guide block 24 fixedly connected to the mounting plate 8 by means of bolts or welding, etc., the upper guide block 24 having a downwardly extending guide column 25, and an oil-impregnated bearing 26 sleeved on the guide column 25; and a lower guide block 27 fixedly connected to the bottom plate 8 by means of bolts or welding, etc., the lower guide block 28 being provided with a guide groove 28; the oil-impregnated bearing 26 being located in the guide groove 28, and when the eccentric driving assembly 12 drives the bottom plate 10 to move, the movement direction of the bottom plate can be guided through the cooperation of the guide groove 28 and the oil-impregnated bearing 26 sleeved on the guide column 25.

[0061] As shown in Figures 4 to 6 The tool head assembly 14 comprises a blade mounting plate 29, a blade 30, and a blade pressing plate 31, the rear end hole 2901 of the blade mounting plate 29 being fixed at the front end of the bottom plate 10 through the third fixing bolt 17, and the bolt 32 being successively threaded through the front end hole 2902 of the blade mounting plate, the mounting groove 301 of the blade 30, the through hole 310 of the blade pressing plate 31, and screwed into the nut 33, so as to fix the blade 30 to the blade mounting plate 29. The rear end hole 2901 is concentrically arranged with the fourth mounting hole of the bottom plate 10 and the third threaded fixing hole 111 at the lower end of the support 11. The intermediate fixing hole 2903 is further arranged between the rear end hole 2901 and the front end hole 2902, and the blade mounting plate 29 can be further fixed to the bottom plate 10 through the bolt and the nut by means of the fixing hole 2903. Through such structural arrangement, not only the quick installation and replacement of the blade 30 and the reliable and firm overall fastening structure can be realized, but also the overall structural space layout can be maximized to be more compact.

[0062] Figure 13 The accessory 2 is applied to the angle grinder 1, the first mounting hole h1 on the accessory 2 mounting frame 9 is used to fix the accessory 2 to the angle grinder 1 through the bolt, the output shaft of the angle grinder 1 is used to provide power to drive the eccentric driving assembly 12, so as to realize the carpet removing function of the angle grinder 1.

[0063] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

[0064] In the above description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0065] In the above description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. An attachment for an angle grinder, characterized in that The utility model relates to an accessory of angle grinder, which comprises: a mounting plate (8) having a central through hole (81); a mounting frame (9) located above the mounting plate (8), the mounting frame (9) having a left side plate (91) and a right side plate (92), the lower end of the left side plate (91) being provided with an inwardly bent left connecting foot plate (93), the lower end of the right side plate (92) being provided with an inwardly bent right connecting foot plate (94), the left connecting foot plate (93) and the right connecting foot plate (94) having a through slot (95) therebetween, the mounting frame (9) being fixedly connected with the mounting plate (8) through the left connecting foot plate (93) and the right connecting foot plate (94); a handle (300) fixedly connected between the upper end of the left side plate (91) and the upper end of the right side plate (92); a bottom plate (10) located below the mounting plate (8), the mounting plate (8) and the bottom plate (10) being provided with an elastic support (11), an eccentric drive assembly (12) and a guide mechanism (13) therebetween, the upper end and the lower end of the elastic support (11) being fixedly connected with the mounting plate (8) and the bottom plate (10) respectively, the eccentric drive assembly (12) driving the bottom plate (10) to move, the guide mechanism (13) guiding the movement direction of the bottom plate (10); a tool bit assembly (14) fixedly arranged at the front end of the bottom plate (10).

2. The accessory of angle grinder according to claim 1, wherein: the left side plate (91) and the right side plate (92) are provided with first mounting holes (h1) for fixedly connecting the accessory (2) with the angle grinder (1).

3. The accessory for an angle grinder as claimed in claim 1 or 2, characterized in that: the left connecting foot plate (93) and the right connecting foot plate (94) are provided with second mounting holes (h2) arranged along a longitudinal direction (X-X); the mounting plate (8) is provided with third mounting holes (h3) corresponding to the second mounting holes (h2) at the outer periphery of the central through hole (81); the upper end of the elastic support (11) is provided with a second threaded fixing hole (110), and a second fixing bolt (16) passes through the second mounting holes (h2) and the third mounting holes (h3) from top to bottom and is screwed into the second threaded fixing hole (110), so as to fixedly connect the mounting frame (9), the mounting plate (8) and the elastic support (11).

4. The accessory for an angle grinder as claimed in claim 3, characterized in that: the lower end of the elastic support (11) is provided with a third threaded fixing hole (111), and the bottom plate (10) is provided with a fourth mounting hole (h4), a third fixing bolt (17) passes through the fourth mounting hole (h4) and is screwed into the third threaded fixing hole (111), so as to fixedly connect the bottom plate (10) with the elastic support (11).

5. The accessory for an angle grinder as claimed in claim 4, characterized in that: The tool head assembly (14) comprises a blade mounting plate (29), a blade (30), and a blade pressing plate (31), a rear end hole (2901) of the blade mounting plate (29) is fixed at the front end of the bottom plate (10) through the third fixing bolt (17), a bolt (32) passes through a front end hole (2902) of the blade mounting plate (29), a mounting groove (301) of the blade (30), and a through hole (310) of the blade pressing plate (31) in sequence and is screwed into a nut (33) to fix the blade (30) to the blade mounting plate (29); The rear end hole (2901), the fourth mounting hole (h4) of the bottom plate (10), and the third threaded fixing hole (111) at the lower end of the elastic support (11) are concentrically arranged; An intermediate fixing hole (2903) is further arranged between the rear end hole (2901) and the front end hole (2902), and the blade mounting plate (29) can be further fixed to the bottom plate (10) through the bolt and the nut by means of the fixing hole (2903).

6. The accessory for an angle grinder as claimed in claim 1, characterized in that: The eccentric driving assembly (12) comprises a bearing mounting seat (18), a bearing (19) is pressed into the bearing mounting seat (18), an eccentric bearing (20) is mounted in the bearing (19), a balance block (21) is arranged above the eccentric bearing (20), and a threaded connection part (72) is threadedly connected between the balance block (21) and the eccentric bearing (20); The bearing mounting seat (18) has a lower flange (180), the bottom plate (10) is provided with a bottom plate through hole (100), and the lower flange (180) is inserted into the bottom plate through hole (100); The bearing mounting seat (18) is provided with a fifth mounting hole (h5), and the outer periphery of the bottom plate through hole (100) is provided with a sixth mounting hole (h6); The bottom plate (10) is further provided with a cover plate (22), and the cover plate (22) is provided with a seventh mounting hole (h7); A fourth fixing bolt (23) passes through the seventh mounting hole (h7), the sixth mounting hole (h6), and is screwed into the fifth mounting hole (h5), so that the bearing mounting seat (18), the bottom plate (10), and the cover plate (22) are fixedly connected.

7. The accessory for an angle grinder as claimed in claim 1, characterized in that: The guide mechanism (13) comprises an upper guide block (24) fixedly connected to the mounting plate (8), the upper guide block (24) has a downwardly extending guide column (25), an oil-containing bearing (26) is sleeved on the guide column (25), a lower guide block (27) is fixedly connected to the bottom plate (10), the lower guide block (27) is provided with a guide groove (28), and the oil-containing bearing (26) is located in the guide groove (28).

8. The accessory for an angle grinder as claimed in claim 1, characterized in that: The mounting rack (9) further comprises a front baffle (96) arranged at the front end, and the front baffle (96), the left side plate (91), the right side plate (92), the left connecting foot plate (93), and the right connecting foot plate (94) are integrally formed metal sheet metal parts.

9. The accessory for an angle grinder as claimed in claim 1, characterized in that: The elastic support (11) is four high-elastic rubber parts arranged in a rectangular shape.

10. The accessory for an angle grinder as claimed in claim 1, characterized in that: The mounting plate (8) and the bottom plate (10) are metal sheet metal stamping parts.

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