CN215394427U

CN215394427U - Novel angle grinder

Info

Publication number: CN215394427U
Application number: CN202120545224.6U
Authority: CN
Inventors: 施勇
Original assignee: Qidong Baofa Electromechanical Technology Co ltd
Current assignee: Qidong Baofa Electromechanical Technology Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-01-04
Anticipated expiration: 2031-03-17

Abstract

The utility model relates to a novel angle grinder which comprises a base body and a working head, wherein the base body is detachably connected with the working head through a connecting structure, the base body is connected with the working head to form an L-shaped structure, a lithium battery is arranged at the lower end of the base body, a cavity is formed in the base body after the base body is connected with the working head, a driving assembly is arranged in the cavity, a connecting head is fixedly connected to the side end of the working head, a protective cover is nested on the connecting head, the driving end of the driving assembly penetrates through the connecting head and is connected with a grinding wheel through the protective cover, and the driving end of a driving motor rotates to drive the grinding wheel to rotate. The utility model has the following advantages: thereby keep the structural balance nature and realize handheld steadiness, reduce the potential safety hazard when using, realize the installation dismantlement between working head and the pedestal fast, guarantee that structural connection is firm.

Description

Novel angle grinder

The technical field is as follows:

the utility model belongs to the field of electric tools, and particularly relates to a novel angle grinder.

Background art:

an angle grinder, also called as a grinder or a disc grinder, is a grinding tool for cutting and grinding glass fiber reinforced plastics, and is a portable electric tool for cutting and grinding glass fiber reinforced plastics, and is mainly used for cutting, grinding and brushing metal, stone and the like. The existing angle grinder has the following defects: 1. the base body and the working head are fixedly connected through screws to form a linear structure, the grinding wheel is arranged at one end of the working head, and the holding position is close to the grinding wheel in order to keep the holding balance during use, so that certain potential safety hazard is brought to operation; 2. during cutting and grinding, more hard scrap iron, steel scraps and the like can be generated, so that a protective cover is arranged at a position close to the working head, the grinding wheel is arranged in the protective cover so as to isolate fine impurities such as the scrap iron, the steel scraps and the like, but the protective cover is usually fixedly arranged on the working head, so that the installation and the disassembly are very inconvenient, and the trouble is brought to later-stage impurity cleaning; 3. the working head and the base body are fixedly connected through the bolt, the assembly and disassembly consume time and labor, and the assembly and disassembly are very inconvenient.

The utility model has the following contents:

the utility model aims to overcome the defects and provides a novel angle grinder and an electric tool, which keep structural balance so as to realize hand-held stability, reduce potential safety hazards in use, quickly realize mounting and dismounting between a working head and a base body and ensure stable structural connection.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a novel angle grinder, including pedestal and working head, the pedestal passes through connection structure with the working head and realizes detachable the connection, and the pedestal forms L type column structure after being connected with the working head, the lower extreme of pedestal has the lithium cell, the pedestal is connected the back with the working head and is inside to have the cavity, drive assembly has in the cavity, the side fixedly connected with connector of working head, the nested protection casing that is equipped with on the connector, drive assembly's drive end runs through the connector and is connected with the emery wheel with the protection casing, driving motor's drive end rotates and drives the emery wheel and rotate.

The utility model is further improved in that: the protection casing establishes the clamp body outside the connector and arranges the semicircle shape cover body of clamp body side in including the cover, and the clamp body covers formula shaping structure as an organic whole with semicircle shape, and the clamp body is including unclosed ring portion and arrange the otic placode portion at ring portion both ends respectively in, and two otic placode portions correspond to set up and run through two otic placode portions and have a screw rod, have the nut on the screw rod.

The utility model is further improved in that: the clamp body of the protective cover is connected with the connector in a clamping type nested manner.

The utility model is further improved in that: the inner wall of the circular ring part of the clamp body is provided with a bulge, and the outer wall of the connector is provided with a limit groove matched with the bulge.

The utility model is further improved in that: the connecting structure comprises two correspondingly arranged convex blocks arranged on the end surface of the working head close to the side of the base body, and also comprises two clamping grooves arranged on the end surface of the base body close to the side of the working head and a limiting clamping block arranged on the end surface of the base body close to the side of the working head, wherein the limiting clamping block is arranged between the two clamping grooves, and the two convex blocks are correspondingly matched with the two clamping grooves;

an inner ring body and an outer ring body are arranged on one side, close to the base body, of the working head, a plurality of connecting columns are arranged between the inner ring body and the outer ring body, a cavity in which the tolerance position clamping blocks are axially embedded is arranged between every two adjacent connecting columns, close to the limiting clamping blocks, the side end face of the inner ring body protrudes out of the side end face of the outer ring body, and the two protrusions are correspondingly arranged at the edge position of the side end face of the inner ring body.

The utility model is further improved in that: the side end face of the base body close to the working head is provided with a circular groove for embedding the side end face of the inner ring body, the two clamping grooves are arranged at two sides of the inner wall of the circular groove, the side end face of the inner ring body is embedded into the circular groove, and the two convex blocks on the working head are correspondingly clamped in the clamping grooves when the working head is rotated.

The utility model is further improved in that: the draw-in groove is including arranging opening guide part and the L type form depressed part of the inboard edge of pedestal in, has spacing in the L type form depressed part, and the up end of spacing is the arc surface that the opening set up down, and the lug slides and is spacing in spacing and the cavity that L type form depressed part inner wall formed towards L type form depressed part by opening guide part.

The utility model is further improved in that: drive assembly is including arranging the driving motor in the cavity in, driving motor's drive end level is to fixedly connected with initiative conical gear on the tip of working head extension and driving motor's the drive end, driven conical gear has in the connector, initiative conical gear and driven conical gear intermeshing, driven conical gear's center is through a connecting axle fixed connection with the center of emery wheel, the outside cover of connecting axle is equipped with the bearing, the inside at the connector is established to the bearing inlay, thereby driving motor drive initiative conical gear rotates and drives initiative conical gear and driven conical gear intermeshing, driven conical gear rotates and makes connecting axle and emery wheel rotate.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the base body and the working head are detachably connected through the connecting structure to form an L-shaped structure, the grinding wheel is arranged at the upper end of the working head, and the lithium battery is arranged at the bottom end of the base body, so that structural balance is maintained, thus the hand-held stability is realized, and the potential safety hazard during use is reduced.

2. The clamp body cover of protection casing is established in the outside of connector, and wherein behind the protruding spacing groove cooperation of the arch of clamp body inner wall and connector outer wall, the screw rod of rethread clamp body one side is screwed up and is made protection casing and connector fastening fixed, and the installation is dismantled conveniently, and the protection casing is connected firmly simultaneously, and difficult emergence is not hard up.

3. The base body is connected with the working head in a clamped mode through the connecting structure, the convex blocks on two sides of the working head are clamped in the clamping grooves of the base body, the working head is rotated to enable the convex blocks to be clamped in the cavities at the bottoms of the limiting strips and the L-shaped concave portions to achieve circumferential direction limiting, then the limiting clamping blocks stretch into the cavities of the working head to achieve axial direction limiting, and the working head and the base body are connected stably while quick clamping is achieved.

Description of the drawings:

FIG. 1 is a schematic structural diagram of a novel angle grinder of the present invention.

FIG. 2 is a sectional view of the internal structure of the angle grinder.

FIG. 3 is a schematic view showing the connection between the connector and the protective cover of the angle grinder of the present invention.

FIG. 4 is a schematic structural diagram of a protective cover of the angle grinder.

Fig. 5 is a schematic view of the end surface of the working head side of the angle grinder being engaged with the seat body.

Fig. 6 is a schematic view of the clamping connection between the side end face of the seat body and the working head of the angle grinder.

Reference numbers in the figures:

1-a base body, 2-a working head, 3-a connecting structure, 4-a lithium battery, 5-a driving assembly, 6-a connector, 7-a protective cover and 8-a grinding wheel;

31-convex block, 32-clamping groove, 33-limiting clamping block, 34-inner ring, 35-outer ring, 36-connecting column, 37-cavity, 38-circular groove, 321-opening guide part, 322-L-shaped concave part, 323-limiting strip and 324-cavity;

51-driving motor, 52-driving bevel gear, 53-driven bevel gear, 54-connecting shaft and 55-bearing;

71-clamp body, 72-semicircular cover body, 711-circular ring part, 712-ear plate part, 713-screw, 714-nut, 715-bulge and 716-limit groove.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship, such as one based on the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit indicated must have a specific orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.

Fig. 1 shows a first embodiment of the novel angle grinder, which includes a base and a working head, wherein the base 1 and the working head 2 are detachably connected through a connecting structure 3, the base 1 and the working head 2 are connected to form an L-shaped structure, a lithium battery 4 is disposed at the lower end of the base 1, a cavity is disposed inside the base 1 and the working head 2 after the base 1 and the working head 2 are connected, a driving assembly 5 is disposed inside the cavity, a connector 6 is fixedly connected to a side end of the working head 2, a protective cover 7 is nested on the connector 6, a driving end of the driving assembly 5 penetrates through the connector 6 and the protective cover 7 to be connected with a grinding wheel 8, and a driving end of a driving motor 5 rotates to drive the grinding wheel 8 to rotate.

According to the utility model, the base body 1 and the working head 2 are detachably connected through the connecting structure 3 to form an L-shaped structure, the grinding wheel 8 is arranged at the upper end of the working head 2, and the lithium battery 4 is arranged at the bottom end of the base body 1, so that structural balance is maintained, thus realizing handheld smoothness and reducing potential safety hazard during use.

Further, as shown in fig. 2 to 4, the protective cover 7 includes a band body 71 that is sleeved outside the connector 6 and a semicircular cover body 72 that is disposed at a side end of the band body 71, the band body 71 and the semicircular cover body 72 are an integrated molding structure, the band body 71 includes an unclosed circular portion 711 and ear plate portions 712 that are disposed at two ends of the circular portion 711 respectively, the two ear plate portions 712 are disposed correspondingly and have a screw 713 penetrating through the two ear plate portions 712, and the screw 713 has a nut 714.

Furthermore, the hoop body 71 of the protective cover 7 and the connector 6 are in clamping type nested connection.

Furthermore, the inner wall of the ring part 711 of the clip body 71 is provided with a protrusion 715, and the outer wall of the connecting head 6 is provided with a limiting groove 716 matched with the protrusion 715.

The clamp body 71 of protection casing 7 is established in the outside of connector 6, and wherein behind the arch 715 of the inner wall of clamp body 71 and the spacing groove 716 cooperation of the outer wall of connector 6, the screw 713 of rethread clamp body 71 one side is screwed up and is made protection casing 7 and connector 6 chucking fixed, and the installation is dismantled conveniently, and protection casing 7 is connected firmly simultaneously, and difficult emergence is become flexible.

Further, as shown in fig. 5 and 6, the connecting structure 3 includes two correspondingly disposed bumps 31 disposed on the end surface of the working head 6 close to the base body 1, two slots 32 disposed on the end surface of the base body 1 close to the working head 6, and a limiting block 33 disposed on the end surface of the base body 1 close to the working head 6, wherein the limiting block 33 is disposed between the two slots 32, and the two bumps 31 are correspondingly matched with the two slots 32;

an inner ring 34 and an outer ring 35 are arranged on one side of the working head 2 close to the seat body 1, a plurality of connecting posts 36 are arranged between the inner ring 34 and the outer ring 35, a cavity 37 in which the tolerance position fixture 33 is axially embedded is arranged between two adjacent connecting posts 36 arranged close to the limit fixture 33, the side end surface of the inner ring 34 is protruded out of the side end surface of the outer ring 35, and two protrusions 31 are correspondingly arranged at the edge position of the side end surface of the inner ring 34.

Furthermore, the side end face of the seat body 1 close to the working head 2 is provided with a circular groove 38 for accommodating the side end face of the inner ring 34, the two clamping grooves 32 are arranged at two sides of the inner wall of the circular groove 38, the side end face of the inner ring 34 is embedded into the circular groove 38, and the two protrusions 31 on the working head 2 are correspondingly clamped in the clamping grooves 32 when the working head 2 is rotated.

Further, the slot 32 includes an opening guide portion 321 and an L-shaped recess portion 322 disposed at the inner side edge of the seat body 1, a limiting strip 323 is disposed in the L-shaped recess portion 322, the upper end surface of the limiting strip 323 is an arc surface with a downward opening, and the protrusion 31 slides from the opening guide portion 321 toward the L-shaped recess portion 322 and is limited in a cavity 324 formed by the limiting strip 323 and the inner wall of the L-shaped recess portion 322.

The base body 1 and the working head 2 are clamped through the connecting structure 3, the convex blocks 31 on two sides of the working head 2 are clamped in the clamping grooves of the base body 1, the working head 2 is rotated to clamp the convex blocks 31 in the cavities 324 at the bottoms of the limiting strips 323 and the L-shaped concave portions 322 to achieve circumferential limiting, and then the limiting clamping block 33 extends into the cavity 37 of the working head 2 to achieve axial limiting, so that quick clamping is achieved, and meanwhile, the connecting stability of the working head 2 and the base body 1 is guaranteed.

Further, the driving assembly 5 includes a driving motor 51 disposed in the cavity, a driving end of the driving motor 51 extends horizontally to the end of the working head 2, and a driving bevel gear 52 is fixedly connected to the driving end of the driving motor 51, a driven bevel gear 53 is disposed in the connector 6, the driving bevel gear 52 is engaged with the driven bevel gear 53, a center of the driven bevel gear 53 is fixedly connected to a center of the grinding wheel 8 through a connecting shaft 54, a bearing 55 is sleeved outside the connecting shaft 54, the bearing 55 is embedded inside the connector 6, the driving motor 51 drives the driving bevel gear 52 to rotate, so as to drive the driving bevel gear 52 to be engaged with the driven bevel gear 53, and the driven bevel gear 53 rotates to enable the connecting shaft 54 to rotate with the grinding wheel 8.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A novel angle grinder is characterized in that: including pedestal and working head, the pedestal passes through connection structure with the working head and realizes detachable the connection, just the pedestal forms L type column structure after being connected with the working head, the lower extreme of pedestal has the lithium cell, the pedestal is connected the back with the working head and inside has the cavity, drive assembly has in the cavity, the side fixedly connected with connector of working head, the nestification is equipped with the protection casing on the connector, drive assembly's drive end runs through the connector and is connected with the emery wheel with the protection casing, driving motor's drive end rotates and drives the emery wheel rotation.

2. The novel angle grinder of claim 1, wherein: the protection casing establishes the clamp body outside the connector and arranges the semicircle shape cover body of clamp body side in including the cover, the clamp body covers formula shaping structure as an organic whole with semicircle shape, the clamp body is including unclosed ring portion and arrange the otic placode portion at ring portion both ends in respectively, and two otic placode portions correspond to set up and run through two otic placode portions and have a screw rod, the nut has on the screw rod.

3. The novel angle grinder of claim 2, wherein: the clamp body of the protective cover is connected with the connector in a clamping type nesting mode.

4. The novel angle grinder of claim 3, wherein: the clamp is characterized in that a protrusion is arranged on the inner wall of the circular ring part of the clamp body, and a limit groove matched with the protrusion is formed in the outer wall of the connector.

5. The new angle grinder as claimed in any one of claims 1 to 4, wherein: the connecting structure comprises two correspondingly arranged convex blocks arranged on the end face of the working head close to the side of the base body, and also comprises two clamping grooves arranged on the end face of the base body close to the side of the working head and a limiting clamping block arranged on the end face of the base body close to the side of the working head, wherein the limiting clamping block is arranged between the two clamping grooves, and the two convex blocks are correspondingly matched with the two clamping grooves;

an inner ring body and an outer ring body are arranged on one side, close to the base body, of the working head, a plurality of connecting columns are arranged between the inner ring body and the outer ring body, a cavity in which a tolerance position clamping block is axially embedded is arranged between every two adjacent connecting columns, close to the limiting clamping block, the side end face of the inner ring body protrudes out of the side end face of the outer ring body, and the two protrusions are correspondingly arranged at the edge position of the side end face of the inner ring body.

6. The novel angle grinder of claim 5, wherein: the side end face of the base body close to the working head is provided with a circular groove for accommodating the side end face of the inner ring body to be embedded in, the two clamping grooves are arranged at two sides of the inner wall of the circular groove, the side end face of the inner ring body is embedded in the circular groove, and when the working head is rotated, the two convex blocks on the working head are correspondingly clamped in the clamping grooves.

7. The novel angle grinder of claim 6, wherein: the draw-in groove is including arranging opening guide part and the L type form depressed part of inboard edge of pedestal in, have spacing in the L type form depressed part, the up end of spacing is the arc surface that the opening set up down, the lug slides and is spacing in spacing and the cavity that L type form depressed part inner wall formed towards L type form depressed part by opening guide part.

8. The novel angle grinder of claim 1, wherein: drive assembly is including arranging the driving motor in the cavity in, driving motor's drive end level extends and driving motor's drive end goes up fixedly connected with initiative conical gear to the tip of working head, driven conical gear has in the connector, initiative conical gear and driven conical gear intermeshing, driven conical gear's center is through a connecting axle fixed connection with the center of emery wheel, the outside cover of connecting axle is equipped with the bearing, the inside at the connector is established to the bearing inlay, thereby driving motor drive initiative conical gear rotates and drives initiative conical gear and driven conical gear intermeshing, and driven conical gear rotates and makes connecting axle and emery wheel rotate.