CN210024944U

CN210024944U - Protective cover device for electric grinder

Info

Publication number: CN210024944U
Application number: CN201920121040.XU
Authority: CN
Inventors: 胡坤
Original assignee: Nanjing Chuang Cheng Decoration Engineering Co Ltd
Current assignee: Nanjing Shikaluo New Material Technology Co ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-02-07
Anticipated expiration: 2029-01-24

Abstract

The utility model relates to a safety cover device for on electric grinder, including endotheca, overcoat, spring shim, endotheca, spring shim pass through the overcoat realize with fixed connection can be dismantled to the safety cover, the equipartition has two at least lugs and first fixture block on the outer wall of endotheca, first fixture block sets up with the lug interval, the overcoat is hollow tubular structure, be equipped with on the inner wall of overcoat with lug complex spacing groove and with first fixture block complex second fixture block, the second fixture block with overcoat swing joint, on the overcoat inner wall with second fixture block complex position is seted up flutedly, the recess internal fixation has the shell fragment, the shell fragment with second fixture block fixed connection. An object of the utility model is to provide a make the safety cover install on the electric grinder dismantle convenient, simple and can rotatory safety cover device.

Description

Protective cover device for electric grinder

Technical Field

The utility model relates to the technical field, concretely relates to a safety cover device for on electric grinder.

Background

The main body of the electric grinder is composed of a motor with power of about 200W and a soft whip with pen-shaped sleeve head. According to the use requirement, various types of drill bits, cutting blades, polishing heads and the like can be selected and matched. In beautiful seam construction field, need use the electric grinder to polish the clearance to the seam of ceramic tile, the beautiful seam of prior art is with the electric grinder can set up the safety cover and block the granule that splashes or the dust of raiseing on head or drill bit usually of polishing, guarantees operative employee's sight and safety. However, the protection cover is usually fixed by screws and nuts, and when the protection cover is detached, an external tool is needed, so that the protection cover is inconvenient to mount and detach, and the protection cover cannot rotate relative to the electric grinder after being fixed, so that the use angle of the protection cover cannot be adjusted according to the requirement.

SUMMERY OF THE UTILITY MODEL

For solving the problem that prior art exists, the utility model provides a safety cover device for on electric grinder, its aim at provides one kind and makes the safety cover install the safety cover device of dismantling convenient, simple and can rotate on electric grinder.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a safety cover device for on electric grinder, includes the safety cover, still includes endotheca, first overcoat, second overcoat, spring shim overlap in on the endotheca and through first overcoat and second overcoat with the safety cover is connected, be equipped with the external screw thread on the one end outer wall of endotheca, set up the fixture block on the outer wall of endotheca, be equipped with on the inner wall of first overcoat with thread fit's internal thread on the endotheca, first overcoat and endotheca threaded connection, the inner wall setting of second overcoat and fixture block complex draw-in groove, the both ends of draw-in groove run through the second overcoat.

Preferably, the outer wall of the other end of the inner sleeve is provided with a chuck, the chuck and the inner sleeve are integrally formed, and the inner sleeve is internally provided with a through threaded hole.

In any of the above aspects, preferably, the fixture block is located between the inner sleeve external thread and the chuck.

In any of the above schemes, the spring washers are preferably wave-shaped spring washers, and the number of the spring washers is 2-4.

In any of the above schemes, preferably, the number of the fixture blocks is at least 2, and the fixture blocks are uniformly distributed on the inner sleeve.

In any of the above schemes, preferably, the number of the clamping grooves is the same as that of the clamping blocks.

In any of the above schemes, preferably, the outer walls of the first outer cover and the second outer cover are both provided with first anti-slip lines.

Preferably in any one of the above schemes, the protective cover comprises a fixed seat and a protective cover, the fixed seat is fixedly connected with the protective cover, second anti-slip threads are arranged on the outer wall of the fixed seat, a stepped hole is formed in the fixed seat, and the chuck can be inserted into the stepped hole.

Compared with the prior art, the utility model provides a safety cover device for on electric grinder has following beneficial effect:

1. the first outer sleeve is in threaded connection with the inner sleeve, so that the second outer sleeve, the protective cover and the inner sleeve are fixed, the first outer sleeve and the inner sleeve are kept in a fastening state under the reaction of the elasticity of the spring gasket, the effect of preventing the first outer sleeve from rotating relative to the inner sleeve and separating from the inner sleeve is achieved, the fixation is convenient and simple, the protective cover and the inner sleeve are convenient to mount and dismount due to the threaded connection of the first outer sleeve and the inner sleeve, the protection can be realized manually with small force without the aid of an external tool, and the defects that the outer sleeve is broken off by hand with large force and the outer sleeve is pressed on the inner sleeve by large force in the prior art are overcome;

2. the outer sleeve and the inner sleeve are convenient and simple to disassemble, so that the protective cover is convenient and simple to assemble and disassemble, the protective cover is convenient and easy to disassemble and assemble quickly, and the working efficiency is improved;

3. through the arrangement of the spring gasket, the protective cover can slightly move between the chuck and the second outer sleeve, so that the protective cover can rotate on the inner sleeve without applying large force, the adjustment is convenient and simple, the protective cover can not freely rotate under the action of no external force under the action of the elastic force of the spring piece, and the protective cover can be conveniently and fixedly used after the angle of the protective cover is adjusted;

4. through the arrangement of the clamping block and the clamping groove, the second outer sleeve cannot rotate relative to the inner sleeve, and the inner sleeve is conveniently screwed on the electric grinder.

Drawings

Fig. 1 is a schematic overall structure view of a preferred embodiment of a protective cover device for an electric grinder according to the present invention;

FIG. 2 is a schematic view of the protective cover of the embodiment shown in FIG. 1;

FIG. 3 is a cross-sectional view of the first outer cover of the embodiment of FIG. 1;

FIG. 4 is a cross-sectional view of the second outer cover of the embodiment of FIG. 3;

FIG. 5 is a schematic structural view of the inner sleeve in the embodiment shown in FIG. 1;

fig. 6 is a schematic structural view of the spring washer in the embodiment shown in fig. 1.

The figures are labeled as follows: 1. a fixed seat; 2. a protective cover; 3. a second casing; 4. a first outer cover; 5. an inner sleeve; 6. a clamping block; 7. a card slot; 8. a spring washer; 9. a chuck; 10. first anti-skid veins.

Detailed Description

In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.

As shown in fig. 1-6, according to the utility model discloses an embodiment of a safety cover device for on electric grinder, including the safety cover, a safety cover device for on electric grinder still includes endotheca 5, first overcoat 4, second overcoat 3, spring shim 8 overlap in on the endotheca 5 and through first overcoat 4 and second overcoat 3 with the safety cover is connected, be equipped with the external screw thread on one end outer wall of endotheca 5, set up fixture block 6 on the outer wall of endotheca 5, be equipped with on the inner wall of first overcoat 4 with thread fit's internal thread on the endotheca 5, first overcoat 4 and 5 threaded connection of endotheca, the inner wall of second overcoat 3 sets up and fixture block 6 complex draw-in groove 7, the both ends of draw-in groove 7 are run through second overcoat 3.

The outer wall of the other end of the inner sleeve 5 is provided with a chuck 9, the chuck 9 and the inner sleeve 5 are integrally formed, and a through threaded hole is formed in the inner sleeve 5.

The fixture block 6 is positioned between the external thread of the inner sleeve 5 and the chuck 9.

The spring washers 8 are wave-shaped spring washers 8, and the number of the wave-shaped spring washers is 2-4.

The number of the fixture blocks 6 is at least 2, and the fixture blocks are uniformly distributed on the inner sleeve 5.

The number of the clamping grooves 7 is the same as that of the clamping blocks 6.

And the outer walls of the first coat 4 and the second coat 3 are both provided with first anti-skid grains 10.

The safety cover includes fixing base 1 and protection casing 2, fixing base 1 with 2 fixed connection of protection casing, be equipped with second anti-skidding line on the outer wall of fixing base 1, the shoulder hole has been seted up on fixing base 1, chuck 9 can insert in the shoulder hole.

The working principle of the embodiment is as follows: firstly, the spring sheet is sleeved on the inner sleeve, then the inner sleeve penetrates through the stepped hole, the fixed seat is sleeved on the inner sleeve, the spring gasket and the chuck are located in a hole with the largest hole diameter on the stepped hole, then the second outer sleeve is sleeved on the inner sleeve, the fixture block is inserted into the clamping groove, then the first outer sleeve is screwed on the inner sleeve, the second outer sleeve is fixed, the first outer sleeve is in a fastening state under the action of the elastic force of the spring gasket, therefore, the installation of the protective cover is completed, then, the inner sleeve 8 is directly installed on the electric grinder, the dust cover can rotate on the inner sleeve, and the angle can be adjusted conveniently.

Compared with the prior art, the embodiment has the following beneficial effects:

through first overcoat and endotheca threaded connection, realize the second overcoat, the safety cover is fixed with the endotheca, and under the reaction of spring gasket elasticity, first overcoat keeps fastening state with the endotheca, play and prevent that first overcoat from rotating and breaking away from the effect of endotheca for the endotheca, it is fixed convenient simple, make the installation of safety cover and endotheca dismantle convenient, need not to use very big power just can realize, also need not to install with the help of external instrument, avoid using among the prior art great power to break off with the fingers and thumb the drawback that breaks away from the endotheca outwardly with the overcoat.

It will be understood by those skilled in the art that the protective cover device for an electric grinding machine of the present invention includes any combination of the inventive concepts and embodiments of the present invention described above and illustrated in the accompanying drawings, which is not intended to be limited to the space and has not been described in detail for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective cover device for an electric grinder comprises a protective cover, and is characterized in that: still include endotheca, first overcoat, second overcoat, spring shim, the spring shim overlap in on the endotheca and through first overcoat and second overcoat with the safety cover is connected, be equipped with the external screw thread on one end outer wall of endotheca, set up the fixture block on the outer wall of endotheca, be equipped with on the inner wall of first overcoat with thread fit's internal thread on the endotheca, first overcoat and endotheca threaded connection, the inner wall setting of second overcoat and fixture block complex draw-in groove, the both ends of draw-in groove run through the second overcoat.

2. The protective cover device for an electric grinder as set forth in claim 1, wherein: the outer wall of the other end of the inner sleeve is provided with a chuck, the chuck and the inner sleeve are integrally formed, and a through threaded hole is formed in the inner sleeve.

3. The protective cover device for an electric grinder as set forth in claim 2, wherein: the fixture block is positioned between the inner sleeve external thread and the chuck.

4. The protective cover device for an electric grinder as set forth in claim 1, wherein: the spring washers are wave-shaped spring washers, and the number of the wave-shaped spring washers is 2-4.

5. The protective cover device for an electric grinder as set forth in claim 1, wherein: the fixture block is at least 2 and evenly distributed on the inner sleeve.

6. The protective cover device for an electric grinder as set forth in claim 1, wherein: the number of the clamping grooves is the same as that of the clamping blocks.

7. The protective cover device for an electric grinder as set forth in claim 1, wherein: and the outer walls of the first coat and the second coat are provided with first anti-skid grains.

8. The protective cover device for an electric grinder as set forth in claim 2, wherein: the safety cover includes fixing base and protection casing, the fixing base with protection casing fixed connection, be equipped with second anti-skidding line on the outer wall of fixing base, the shoulder hole has been seted up on the fixing base, the chuck can insert in the shoulder hole.