Dustproof structure of high-voltage brushless angle grinder

Abstract

The utility model discloses a dustproof structure of a high-voltage brushless angle grinder, and particularly relates to the field of angle grinders, which comprises a protective cover fixedly mounted on the high-voltage brushless angle grinder, the protective cover is positioned on the outer side of a blade on the high-voltage brushless angle grinder, a dust suction pipe is fixedly communicated with the protective cover, one side of the protective cover is rotatably connected with a cover plate through a hinge, and the other side of the protective cover is fixedly connected with the dust suction pipe. The size of the cover plate is larger than that of the blade of the high-voltage brushless angle grinder; a supporting frame is detachably connected to one end of the protection cover, supporting legs are fixedly connected to the corners of the supporting frame, a rubber dustproof sleeve arranged in a rectangular shape is fixedly connected to the supporting frame, a fixing frame is fixedly connected to the end, back to the supporting frame, of the rubber dustproof sleeve, and one end of the rubber dustproof sleeve exceeds the position of an upper blade of the high-voltage brushless angle grinder. The supporting frame and the supporting legs are provided with elastic supporting assemblies, and the elastic supporting assemblies are connected with the fixing frame. The protective cover solves the technical problem that the protective cover is not timely in dust prevention when the high-voltage brushless angle grinder works.

Description

Technical Field

[0001] The utility model relates to the field of angle grinders, and more specifically, to a dust-proof structure for a high-voltage brushless angle grinder. Background Art

[0002] An angle grinder, also known as a grinding machine or a disc grinder, is a portable electric tool that uses fiberglass for cutting and grinding. It is mainly used for cutting, grinding, and brushing metals and stones, etc. It has many uses and is commonly used by carpenters, bricklayers, and welders. Currently, angle grinders are mainly divided into: electric angle grinders, lithium-ion angle grinders, and pneumatic angle grinders. The pneumatic angle grinder is relatively light and has low noise. Its power mainly comes from the air pump pressure, with high safety and convenient maintenance. Currently, when a high-voltage brushless angle grinder is in use, dust is easily generated due to the friction between the blade and the contact object.

[0003] In the related art, a protective cover is configured for the cutting part of the high-voltage brushless angle grinder. The protective cover is arranged around the blade, and the protective cover is then matched with a dust suction system for dust-proof dust suction use. When the angle grinder is operating, since the protective cover is relatively fixedly connected to the angle grinder, the blade first contacts the cutting surface, and then the protective cover contacts the cutting surface to achieve regional sealing. Due to the height difference between the blade and the protective cover, there is a technical problem that the protective cover is not timely in dust prevention. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a dust-proof structure for a high-voltage brushless angle grinder. The technical problem to be solved by the utility model is: the technical problem that the protective cover is not timely in dust prevention when the high-voltage brushless angle grinder is operating.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dust-proof structure for a high-voltage brushless angle grinder, including a protective cover fixedly installed on the high-voltage brushless angle grinder, and the protective cover is located outside the blade on the high-voltage brushless angle grinder. A dust suction pipe is fixedly communicated with the protective cover. One side of the protective cover is rotatably connected with a cover plate through a hinge. The size of the cover plate is larger than the size of the blade of the high-voltage brushless angle grinder:

[0006] One end of the protective cover is detachably connected with a support frame, and legs are fixedly connected to the corners of the support frame. A rectangular rubber dust-proof sleeve is fixedly connected to the support frame. One end of the rubber dust-proof sleeve, which faces away from the support frame, is fixedly connected with a fixed frame. One end of the rubber dust-proof sleeve extends beyond the position of the blade on the high-voltage brushless angle grinder. An elastic support component is arranged on the support frame and the legs, and the elastic support component is connected with the fixed frame.

[0007] In a preferred embodiment, an avoidance hole for avoiding the installation of the output end of the high-voltage brushless angle grinder is provided on the protective cover, and an installation hole for being fastened to the high-voltage brushless angle grinder by a bolt is also provided on the protective cover.

[0008] In a preferred embodiment, a second elastic buckle is fixedly connected to the cover plate, and a first clamping groove for elastic clamping of the second elastic buckle is provided on the side surface of the protective cover.

[0009] In a preferred embodiment, a sealing strip is fixedly connected to one end of the cover plate.

[0010] In a preferred embodiment, a folding outer edge is provided on the rubber dust-proof sleeve.

[0011] In a preferred embodiment, the number of the elastic support components is two pairs. The elastic support components include a telescopic groove, a tension spring and a T-shaped sliding rod. The telescopic groove is arranged in the leg and the support frame. The tension spring is arranged in the telescopic groove. One end of the T-shaped sliding rod is slidably connected in the telescopic groove. The other end of the T-shaped sliding rod passes through the rubber dust-proof sleeve and is fixedly connected to the fixed frame, and the outer surface of the T-shaped sliding rod is in sliding contact with the inner corner surface of the rubber dust-proof sleeve.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. For the dust-proof structure of a high-voltage brushless angle grinder of the present utility model, by providing a protective cover on the high-voltage brushless angle grinder, the protective cover can expose a partial position of the blade, and a foldable rubber dust-proof sleeve is provided at one end of the protective cover, and the rubber dust-proof cover is arranged beyond the blade position. By using the resilience of the compressed elastic support component, the rubber dust-proof cover can first contact the cutting surface and be compressed and deformed, so that the blade can extend into the installation surface for frictional operation subsequently. In this way, the rubber dust-proof cover can seal the working environment of the blade in real time, ensuring the timeliness of dust prevention.

[0014] 2. For the dust-proof structure of a high-voltage brushless angle grinder of the present utility model, the cover plate is arranged on the protective cover and can be opened and closed, so as to meet the convenience of blade replacement; the support frame is detachably connected to the protective cover, so as to meet the convenience of disassembly and replacement of all structures at one end of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extension based on the provided drawings without creative efforts.

[0016] Figure 1 This is a schematic structural view of a dust-proof structure of a high-voltage brushless angle grinder according to the present utility model.

[0017] Figure 2 This is a schematic structural view of the protective cover and the cover plate of the present utility model.

[0018] Figure 3 This is a schematic structural view of the support frame and the support legs of the present utility model.

[0019] Figure 4 This is a plan perspective view of the elastic support assembly of the present utility model.

[0020] Figure 5 This is a schematic structural view of the rubber dust-proof sleeve, the fixing frame and the T-shaped slide bar of the present utility model.

[0021] The reference numerals are: 1, high-voltage brushless angle grinder; 2, protective cover; 3, cover plate; 4, dust suction pipe; 5, support frame; 6, support legs; 7, rubber dust-proof sleeve; 8, fixing frame; 9, elastic support assembly; 91, telescopic groove; 92, tension spring; 93, T-shaped slide bar; 10, mounting hole; 11, avoidance hole; 12, first elastic buckle; 13, second elastic buckle. Specific embodiments

[0022] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] With reference to Figures 1 - 5 , the present utility model provides a dust-proof structure for a high-voltage brushless angle grinder, including a protective cover 2 fixedly installed on the high-voltage brushless angle grinder 1, and the protective cover 2 is located outside the blade on the high-voltage brushless angle grinder 1. In this application, the size of the protective cover 2 is designed to satisfy the external leakage of the local position of the blade. The protective cover 2 can be made of transparent acrylic material, which is transparent and has high strength. On the one hand, it can facilitate the working state of the blade, and on the other hand, it can prevent the blade from breaking and flying. A dust suction pipe 4 is fixedly connected to the protective cover 2, and the dust suction pipe 4 can be externally connected to a dust suction device. One side of the protective cover 2 is rotatably connected to a cover plate 3 through a hinge. The size of the cover plate 3 is larger than the size of the blade of the high-voltage brushless angle grinder 1. The protective cover 2 is provided with an opening corresponding to the cover plate 3, and the size of the opening is larger than the size of the blade on the output shaft of the high-voltage brushless angle grinder 1, so that the blade can be conveniently replaced without disassembling the protective cover 2.

[0024] One end of the protective cover 2 is detachably connected to a support frame 5, and legs 6 are fixedly connected to the corners of the support frame 5. A rectangular rubber dust-proof sleeve 7 is fixedly connected to the support frame 5, and a fixed frame 8 is fixedly connected to the end of the rubber dust-proof sleeve 7 facing away from the support frame 5. In this application, the inner and outer corners of the rubber dust-proof sleeve 7 can be rounded. The rubber dust-proof sleeve 7 can be easily compressed and deformed to adjust the distance between the cutting surface and the protective cover 2. One end of the rubber dust-proof sleeve 7 extends beyond the position of the blade on the high-voltage brushless angle grinder 1. An elastic support assembly 9 is arranged on the support frame 5 and the legs 6, and the elastic support assembly 9 is connected to the fixed frame 8.

[0025] An avoidance hole 11 for avoiding the installation of the output end of the high-voltage brushless angle grinder 1 is arranged on the protective cover 2. The avoidance hole 11 facilitates the protective cover 2 to pass through the output end of the high-voltage brushless angle grinder 1. An installation hole 10 for fastening and connecting to the high-voltage brushless angle grinder 1 with bolts is also arranged on the protective cover 2. The installation hole 10 can cooperate with bolts to fix the protective cover 2 on the high-voltage brushless angle grinder 1.

[0026] A second elastic buckle 13 is fixedly connected to the cover plate 3. A first card slot for elastic clamping of the second elastic buckle 13 is arranged on the side surface of the protective cover 2. The elastic clamping of the second elastic buckle 13 in the first card slot can meet the locking property of the cover plate 3 based on the protective cover 2 and facilitate the opening and closing operation of the cover plate 3. Since the cover plate 3 is arranged to rotate on the protective cover 2 in this application, the transverse length of the first card slot is greater than the length of the second elastic buckle 13 to reserve a clamping interval.

[0027] A sealing strip is fixedly connected to one end of the cover plate 3. The setting of the sealing strip can make the protective cover 2, the support frame 5 and the cover plate 3 have a sealing effect when the cover plate 3 is closed on the protective cover 2, so as to ensure that dust is concentrated and discharged through the dust suction pipe 4.

[0028] A first elastic buckle 12 is fixedly connected to the support frame 5. A second card slot for elastic clamping of the first elastic buckle 12 is arranged at one end of the protective cover 2. The setting of the first elastic buckle 12 can meet the detachable property of the support frame 5 based on the protective cover 2, so that it is convenient to replace when the elastic support assembly 9 or the rubber dust-proof sleeve 7 is damaged.

[0029] The rubber dust-proof sleeve 7 is provided with a folding outer edge, which is the deformation part where the rubber dust-proof sleeve 7 is folded. Since there are multiple folding outer edges, the rubber dust-proof sleeve 7 can be deformed and telescoped when the rubber dust-proof sleeve 7 is compressed.

[0030] The number of the elastic support components 9 is two pairs. The elastic support components 9 include telescopic grooves 91, tension springs 92 and T-shaped sliding rods 93. The telescopic grooves 91 are arranged in the legs 6 and the support frame 5. The tension springs 92 are arranged in the telescopic grooves 91. One end of the T-shaped sliding rod 93 is slidably connected in the telescopic groove 91. The other end of the T-shaped sliding rod 93 passes through the rubber dust-proof sleeve 7 and is fixedly connected to the fixed frame 8. The outer surface of the T-shaped sliding rod 93 is in sliding contact with the inner corner surface of the rubber dust-proof sleeve 7. The arrangement of the T-shaped sliding rod 93 in contact with the rubber dust-proof sleeve 7 can play a role in guiding the expansion and contraction of the rubber dust-proof sleeve 7 when the rubber dust-proof sleeve 7 deforms and expands, so as to avoid the problem of the rubber dust-proof sleeve 7 turning inwards.

[0031] Specifically, when using the high-voltage brushless angle grinder 1 for cutting operations, at this time, the fixed frame 8 can first abut against the cutting surface. By pushing the blade close to the cutting surface, at this time, the T-shaped sliding rod 93 can squeeze the tension spring 92 and slide into the telescopic groove 91. At this time, because the external length of the T-shaped sliding rod 93 becomes shorter, the rubber dust-proof sleeve 7 can be compressed and folded until the blade exceeds the end of the rubber dust-proof sleeve 7, so that the blade can extend into the cutting surface for cutting operations. Because the fixed frame 8 is always closely attached to the cutting surface, the positions of the rubber dust-proof sleeve 7 and the protective cover 2 can seal the cutting area in real time, and the dust-proof and sealing are relatively timely. Finally, the dust in the cutting area can be quickly extracted and collected by using the position of the dust suction pipe 4.

Claims

1. A dustproof structure for a high-pressure brushless angle grinder, characterized in that: The invention comprises a protective cover (2) which is fixedly mounted on a high-pressure brushless angle grinder (1), and the protective cover (2) is located outside a blade of the high-pressure brushless angle grinder (1); a dust suction pipe (4) is fixedly connected to the protective cover (2); a cover plate (3) is rotatably connected to one side of the protective cover (2) via a hinge, and the size of the cover plate (3) is larger than the size of the blade of the high-pressure brushless angle grinder (1); One end of the protective cover (2) is detachably connected to a support frame (5), and the corners of the support frame (5) are fixedly connected to support legs (6), a rectangular rubber dust cover (7) is fixedly connected to the support frame (5), and one end of the rubber dust cover (7) facing away from the support frame (5) is fixedly connected to a fixed frame (8), one end of the rubber dust cover (7) is arranged beyond the position of the blade on the high-pressure brushless angle grinder (1), and an elastic support component (9) is arranged on the support frame (5) and the support legs (6), and the elastic support component (9) is connected to the fixed frame (8).

2. A dustproof structure for a high-pressure brushless angle grinder according to claim 1, characterized in that: The protective cover (2) is provided with an avoidance hole (11) for avoiding the installation of the output end of the high-pressure brushless angle grinder (1), and the protective cover (2) is also provided with a mounting hole (10) for fastening and connecting to the high-pressure brushless angle grinder (1) with a matching bolt.

3. A dustproof structure for a high-pressure brushless angle grinder according to claim 1, characterized in that: A second elastic buckle (13) is fixedly connected to the cover plate (3), and a first clamping groove for elastic clamping of the second elastic buckle (13) is provided on the side surface of the protective cover (2).

4. The dustproof structure of a high-pressure brushless angle grinder according to claim 1, characterized in that: One end of the cover plate (3) is fixedly connected with a sealing strip.

5. The dustproof structure of a high-pressure brushless angle grinder according to claim 1, characterized in that: A first elastic buckle (12) is fixedly connected to the support frame (5), and a second clamping groove for elastic clamping of the first elastic buckle (12) is provided at one end of the protective cover (2).

6. A dustproof structure for a high-pressure brushless angle grinder according to claim 1, characterized in that: The rubber dust cover (7) is provided with a folded outer edge.

7. The dustproof structure of a high-pressure brushless angle grinder according to claim 1, characterized in that: The number of the elastic support components (9) is two pairs, and the elastic support components (9) include a telescopic groove (91), a tensioning spring (92) and a T-shaped sliding rod (93). The telescopic groove (91) is arranged in the support leg (6) and the support frame (5), and the tensioning spring (92) is arranged in the telescopic groove (91). One end of the T-shaped sliding rod (93) is slidably connected in the telescopic groove (91), and the other end of the T-shaped sliding rod (93) passes through the rubber dust cover (7) and is fixedly connected to the fixed frame (8), and the outer surface of the T-shaped sliding rod (93) is in sliding contact with the inner corner surface of the rubber dust cover (7).

Images