Protective cover for grinding head of handheld grinding machine

Abstract

The utility model relates to the technical field of handheld mills, in particular to a protective cover for a grinding head of a handheld mill, which comprises a handheld mill body and a protective mechanism, the grinding head for grinding is assembled at the left end of the handheld mill body, and the protective mechanism for shielding and protection covers the upper side of the grinding head; the protection mechanism comprises a movable protection cover, a transition protection cover, a fixed protection cover and a fixed tension band, the fixed tension band fixedly sleeves the position, close to the left end, of the handheld mill body, the adjustable fixed protection cover is arranged on the upper side of the annular surface of the fixed tension band, and the transition protection cover is movably attached to the upper side of the fixed protection cover; the left side of the transition protective cover is fixedly connected with a movable protective cover, and the specification of the movable protective cover is the same as that of the fixed protective cover. The polishing head can be shielded and protected through the arranged protection mechanism, the fixed protection cover, the movable protection cover and the transition protection cover jointly form a shielding layer, chippings generated in the polishing process are effectively prevented from splashing, and an operator is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to hand -held grinder technical field, specifically, a hand -held grinder polishing head protective cover is provided. BACKGROUND

[0002] Hand -held grinder, also known as hand -held sander, is a kind of efficient, portable electric tool, mainly used to polish, polish, deburring etc. the processing of material surface.Hand -held grinder's working principle is relatively simple, mainly through motor drive grinding head rotation, the abrasive particles on the surface of grinding head high -speed rotation and the object surface friction, to remove surface stain, chisel concave-convex surface, make material surface reach smooth and even effect.

[0003] Hand -held grinder is a commonly used electric tool, is widely used in the processing and polishing of metal, wood, plastic etc. material. However, in the polishing process, the high -speed rotating polishing head will produce a large amount of debris, these debris are not only difficult to clean, and easy to splash everywhere, even splash into the operator's mouth nose eye, cause harm. The existing hand -held grinder protective cover although has played a protective role to some extent, but there are still deficiencies in preventing debris splashing and ensuring operation safety. SUMMARY

[0004] In view of the existing deficiencies, the utility model provides a kind of hand -held grinder polishing head protective cover, solve the problems raised in the above background art.

[0005] To achieve the above object, the technical scheme that the utility model takes is as follows:

[0006] A kind of hand -held grinder polishing head protective cover, including hand -held grinder body and protection mechanism, the left end of the hand -held grinder body is equipped with the polishing head for polishing, the upper side cover of the polishing head is equipped with the protection mechanism for shielding protection;

[0007] The protection mechanism includes movable protective cover, transition protective cover, fixed protective cover and fixed hoop, the fixed hoop is fixedly provided on the hand -held grinder body and is close to the left end, the fixed hoop ring surface upper side is provided with adjustable fixed protective cover, the upper side of the fixed protective cover is movably connected with transition protective cover, the left side of the transition protective cover is fixedly connected with movable protective cover, and the specification of the movable protective cover is same with the specification of the fixed protective cover.

[0008] Further, the fixed protective cover, movable protective cover and transition protective cover are all provided as arc structure, and the polishing head is shielded inside, the fixed protective cover, movable protective cover and transition protective cover are all transparent plastic material.

[0009] Further, the fixed hoop ring surface is symmetrically and fixedly provided with two groups of supporting plates, the length of the supporting plate is greater than the radius length of the fixed protective cover, the inside of the supporting plate is provided with an adjusting groove, the front and back sides of the fixed protective cover ring surface are provided with hinged shafts matched with the adjusting groove, and the hinged shafts are clamped into the adjusting groove and hinged therewith.

[0010] Further, the upper surface of the fixed protective cover is provided with limiting sliding grooves at the front and back sides, the inner ring surface of the transition protective cover is fixedly provided with limiting sliding blocks at the right end near the front and back sides, and the limiting sliding blocks are clamped into the limiting sliding grooves and are slidably connected therewith.

[0011] Further, the upper surface of the fixed protective cover is provided with limiting sliding grooves at the front and back sides, the inner ring surface of the transition protective cover is fixedly provided with limiting sliding blocks at the right end near the front and back sides, and the limiting sliding blocks are clamped into the limiting sliding grooves and are slidably connected therewith.

[0012] Further, the upper surface of the fixed protective cover is provided with limiting sliding grooves at the front and back sides, the inner ring surface of the transition protective cover is fixedly provided with limiting sliding blocks at the right end near the front and back sides, and the limiting sliding blocks are clamped into the limiting sliding grooves and are slidably connected therewith.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] 1, the utility model discloses a protective mechanism can shield the polishing head, and the fixed protective cover, movable protective cover and transition protective cover form a shielding layer together, effectively prevent the splashing of the debris generated in the polishing process, realize the protection of operator.

[0015] 2, the utility model discloses a fixed protective cover is hinged with the adjusting groove on the fixed hoop ring through the hinged shaft, so that the fixed protective cover can be adjusted in a certain range, to adapt to different polishing requirements, and the transition protective cover and the movable protective cover are connected with the fixed protective cover through the limiting sliding block and the locking bolt, so that the position adjustment and locking can be realized.

[0016] 3, the utility model discloses a fixed protective cover, movable protective cover and transition protective cover are all arc structures, and the polishing head is shielded, the arc structure can better fit the shape of the polishing head, ensure that the protective cover can completely shield the polishing head, and then effectively shield the debris generated in the polishing process, meanwhile, compared with the plane structure, the arc structure can provide greater protection area, so that the operator can be more comprehensively protected from the harm of the debris, the fixed protective cover, movable protective cover and transition protective cover are all transparent plastic materials, so that the operator can clearly see the working condition of the polishing head, thereby timely adjusting the operation, and the transparent plastic material reduces the weight of the protective mechanism, thereby reducing the overall weight of the handheld grinder. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 It is another angle structure schematic view of the utility model.

[0019] Figure 3 It is structure schematic view of the protection mechanism in the utility model.

[0020] Figure 4 It is sectional view of the protection mechanism in the utility model.

[0021] Figure 5 It is local structure schematic view of the utility model.

[0022] Figure 6 It is bottom structure schematic view of the movable protection cover and the transition protection cover in the utility model.

[0023] Figure 7 It is structure schematic view of the fixed protection cover in the utility model.

[0024] Figure 8 It is internal structure schematic view of the fixed protection cover in the utility model.

[0025] Figure 9 It is state schematic view of the protection mechanism after overturning adjustment in the utility model.

[0026] In the drawing: 1, handheld grinder body;2, protection mechanism;21, movable protection cover;22, transition protection cover;23, fixed protection cover;24, support plate;25, adjusting groove;26, fixed hoop;27, locking bolt;28, push plate;29, screw hole;210, limit sliding block;211, guide groove;212, limit sliding groove;213, hinged shaft;3, polishing head. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0028] As shown in Figures 1 to 9 A kind of handheld grinder polishing head protection cover, including handheld grinder body 1 and protection mechanism 2, handheld grinder body 1 left end is equipped with the polishing head 3 for polishing, the upper side cover of polishing head 3 is equipped with the protection mechanism 2 for shielding protection;

[0029] The protection mechanism 2 comprises a movable protective cover 21, a transition protective cover 22, a fixed protective cover 23 and a fixed hoop 26, the fixed hoop 26 is fixedly sleeved on the handheld grinder body 1 close to the left end, the fixed hoop 26 is provided with an adjustable fixed protective cover 23 on the upper side of the annular surface, the upper side of the fixed protective cover 23 is movably attached with the transition protective cover 22, the left side of the transition protective cover 22 is fixedly connected with the movable protective cover 21, and the movable protective cover 21 has the same specification as the fixed protective cover 23, the fixed protective cover 23, the movable protective cover 21 and the transition protective cover 22 jointly form a shielding layer, which effectively prevents the debris generated during polishing from splashing, and solves the problem that a large amount of debris is generated during high-speed rotation of the polishing head 3 of the handheld grinder during polishing, which is difficult to clean and easy to splash everywhere, even into the mouth, nose and eyes of the operator, causing injury.

[0030] In the embodiment, the fixed protective cover 23, the movable protective cover 21 and the transition protective cover 22 are all arc-shaped structures, and the polishing head 3 is shielded inside, the arc-shaped structure can better fit the shape of the polishing head 3, ensure that the protective cover can completely shield the polishing head 3, and effectively shield the debris generated during polishing, at the same time, compared with the plane structure, the arc-shaped structure can provide a larger protection area, so as to more comprehensively protect the operator from the injury of the debris, the fixed protective cover 23, the movable protective cover 21 and the transition protective cover 22 are all transparent plastic materials, the transparent plastic material enables the operator to clearly see the working condition of the polishing head 3, so as to timely adjust the operation, and the transparent plastic material reduces the weight of the protection mechanism 2, and thus reduces the overall weight of the handheld grinder.

[0031] In the embodiment, the fixed hoop 26 is symmetrically provided with two groups of support plates 24 on the annular surface, the two groups of support plates 24 symmetrically arranged enable the fixed protective cover 23 to remain balanced and stable during adjustment, and the inclination or shaking of the fixed protective cover 23 does not occur, the length of the support plate 24 is greater than the radius length of the fixed protective cover 23, the support plate 24 is internally provided with an adjusting groove 25, the annular surface of the fixed protective cover 23 is provided with a hinge shaft 213 adapted to the adjusting groove 25 on the front and rear sides, the hinge shaft 213 is clamped into the adjusting groove 25 and hinged therewith, the hinge shaft 213 and the adjusting groove 25 are hinged to realize the angle adjustment function of the fixed protective cover 23, so that the fixed protective cover 23 can be rotationally adjusted within a certain range to adapt to different polishing requirements.

[0032] In the embodiment, the upper surface of the fixed protective cover 23 is provided with a limiting sliding groove 212 on both sides, and the inner ring surface of the transition protective cover 22 is fixedly provided with a limiting sliding block 210 near the right end, which is connected with the limiting sliding groove 212. The limiting sliding block 210 and the limiting sliding groove 212 play a role in the transition and connection of the transition protective cover 22. The design of the sliding groove allows the transition protective cover 22 to slide in a certain range along the sliding groove, thereby adjusting the overall length of the protective cover, so that the protective cover can adapt to polishing heads 3 of different sizes and shapes, and improve the versatility of the handheld grinder.

[0033] In the embodiment, the upper surface of the fixed protective cover 23 is provided with a limiting sliding groove 212 on both sides, and the inner ring surface of the transition protective cover 22 is fixedly provided with a limiting sliding block 210 near the right end, which is connected with the limiting sliding groove 212. The limiting sliding block 210 and the limiting sliding groove 212 play a role in the transition and connection of the transition protective cover 22. The design of the sliding groove allows the transition protective cover 22 to slide in a certain range along the sliding groove, thereby adjusting the overall length of the protective cover, so that the protective cover can adapt to polishing heads 3 of different sizes and shapes, and improve the versatility of the handheld grinder.

[0034] In the embodiment, the right end surface of the transition protective cover 22 is fixedly provided with a push plate 28, which facilitates the operator to apply force, so that the operator can more conveniently adjust the position of the transition protective cover 22.

[0035] The working principle of the handheld grinder polishing head protective cover is as follows:

[0036] In actual use, the fixed hoop 26 is fixedly sleeved on the handheld grinder body 1 near the left end. The fixed protective cover 23 is installed on the upper side of the ring surface of the fixed hoop 26, and the angle adjustment is realized through the connection of the hinge shaft 213 and the adjusting groove 25. The transition protective cover 22 is installed on the upper side of the fixed protective cover 23 through the connection of the limiting sliding block 210 and the limiting sliding groove 212, and the position adjustment and locking are realized through the cooperation of the locking bolt 27 and the guide groove 211. According to the size and shape of the polishing head 3, the transition protective cover 22 is slid and the angle of the fixed protective cover 23 is adjusted, so that the protective cover can wrap the polishing head 3. The locking bolt 27 is tightened to ensure that the transition protective cover 22 is firmly locked on the fixed protective cover 23 after adjustment. Start the handheld grinder and perform polishing work. During polishing, the protective cover effectively prevents debris generated during polishing from splashing, protecting the operator from injury. The operator can clearly see the working condition of the polishing head 3 through the transparent plastic protective cover.

[0037] In summary, the hand-held grinder polishing head protective cover can effectively prevent the splashing of the debris generated in the polishing process, protect the operator from being hurt, and improve the efficiency and quality of the polishing operation.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model, and for ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made, and all the embodiments cannot be exhausted here, and any obvious changes or changes derived from the technical solutions of the utility model still fall within the protection scope of the utility model.

Claims

1. A hand grinder polishing head protective cover, comprising a hand grinder body (1) and a protective mechanism (2), characterized in that: The handheld grinder body (1) is equipped with a grinding head (3) for grinding at the left end, and a shielding mechanism (2) is arranged on the upper side of the grinding head (3) for shielding protection. The shielding mechanism (2) comprises a movable shielding cover (21), a transition shielding cover (22), a fixed shielding cover (23) and a fixed hoop (26), the fixed hoop (26) is fixedly sleeved on the handheld grinder body (1) near the left end, the fixed hoop (26) is provided with an adjustable fixed shielding cover (23) on the upper side of the annular surface, the fixed shielding cover (23) is movably connected with the transition shielding cover (22) on the upper side, the transition shielding cover (22) is fixedly connected with the movable shielding cover (21) on the left side, and the movable shielding cover (21) has the same size as the fixed shielding cover (23).

2. The hand grinder polishing head guard of claim 1, wherein: The fixed shielding cover (23), the movable shielding cover (21) and the transition shielding cover (22) are all arc-shaped structures, and the grinding head (3) is shielded inside, and the fixed shielding cover (23), the movable shielding cover (21) and the transition shielding cover (22) are all made of transparent plastic material.

3. The hand grinder polishing head guard of claim 1, wherein: The fixed hoop (26) is symmetrically provided with two groups of supporting plates (24) on the annular surface, the length of the supporting plate (24) is greater than the radius length of the fixed shielding cover (23), the supporting plate (24) is provided with an adjusting groove (25) inside, the fixed shielding cover (23) is provided with a hinge shaft (213) on the front and rear sides of the annular surface, the hinge shaft (213) is clamped into the adjusting groove (25) and is hingedly connected with the adjusting groove (25).

4. The hand grinder polishing head guard of claim 1, wherein: The fixed shielding cover (23) is provided with a limiting sliding groove (212) on the upper surface of the front and rear sides, the transition shielding cover (22) is fixedly provided with a limiting sliding block (210) on the inner annular surface of the front and rear sides near the right end, and the limiting sliding block (210) is clamped into the limiting sliding groove (212) and is slidably connected with the limiting sliding groove (212).

5. The hand grinder polishing head guard of claim 1, wherein: The fixed shielding cover (23) is provided with a horizontal guide groove (211) in the middle of the upper surface, the transition shielding cover (22) is provided with a threaded hole (29) in the vertex of the upper surface near the right end, a locking bolt (27) is screwed into the threaded hole (29), and the lower end of the locking bolt (27) extends into the guide groove (211) and is slidably connected with the guide groove (211).

6. The hand grinder polishing head guard of claim 1, wherein: The transition shielding cover (22) is fixedly provided with a push plate (28) on the vertex of the right end surface.

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