CN110900400B - Dustproof assembly of angle grinder - Google Patents
Dustproof assembly of angle grinder Download PDFInfo
- Publication number
- CN110900400B CN110900400B CN201911217712.8A CN201911217712A CN110900400B CN 110900400 B CN110900400 B CN 110900400B CN 201911217712 A CN201911217712 A CN 201911217712A CN 110900400 B CN110900400 B CN 110900400B
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- dustproof
- piece
- angle grinder
- shell
- head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a dustproof component of an angle grinder. The angle grinder comprises an angle grinder shell, wherein the angle grinder shell comprises a head cover, a head shell and a rear shell, the head cover is connected with the head shell in a matched mode, and the head shell is connected with the rear shell in a matched mode; a bearing cover is arranged on the head cover, and a first dustproof channel is arranged at the bearing cover; a pin cover is arranged on the head shell, and a second dustproof channel is arranged at the pin cover; the angle grinder shell is provided with a wind wheel and a wind guide ring, and a third dust prevention channel is arranged at the position; a gear sleeve is arranged at the extending part of a bevel gear in the angle grinder shell, and a flow guide convex strip is arranged on the outer wall of the gear sleeve in the circumferential direction; the rotor tail in the backshell is provided with the connecting piece, and connecting piece department sets up fourth dustproof passageway. The related dustproof component has a simple structure, is integrated on the original component through a plurality of parts needing dustproof in the angle grinder, and forms a dustproof body through the matching relationship between the original components, thereby effectively playing a dustproof role, protecting the components in the angle grinder and prolonging the service life of the angle grinder.
Description
Technical Field
The invention relates to the technical field of electric tools, in particular to a dustproof assembly of an angle grinder.
Background
An angle grinder, also called a grinder or a disc grinder, is a portable electric tool for cutting and grinding glass fiber reinforced plastics, and is mainly used for cutting, grinding and brushing metal and stone materials.
In current angle mill, there is not effectual dustproof construction, inside outside dust relatively enters into the angle mill easily, and the dust that enters into the inside of angle mill is difficult to the clearance again, gets off for a long time, easily causes the damage of angle mill internals.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dustproof component of an angle grinder.
In order to solve the technical problems, the invention is solved by the following technical scheme: the angle grinder dustproof assembly comprises an angle grinder shell, wherein the angle grinder shell comprises a head cover, a head shell and a rear shell, the head cover is connected with the head shell in a matched mode, and the head shell is connected with the rear shell in a matched mode;
the head cover is provided with a bearing cover matched with the head cover;
the bearing cover is provided with a first through hole matched with a rotating shaft of the angle grinder, a first dustproof piece and a second dustproof piece are arranged on the periphery of the first through hole, the head cover is provided with a second through hole matched with the rotating shaft of the angle grinder, a third dustproof piece is arranged on the periphery of the second through hole, and after the bearing cover and the head cover are installed, the third dustproof piece penetrates into a cavity formed between the first dustproof piece and the second dustproof piece and is matched with the first dustproof piece and the second dustproof piece to form a first dustproof channel;
a pin cover is arranged on the head shell;
the pin cover comprises an outer sleeve and an inner sleeve which extend in the same direction, a cavity for accommodating a flange of a motor casting is formed between the outer sleeve and the inner sleeve, and the outer sleeve and the flange are matched to form a second dustproof channel;
the angle grinder shell is provided with a wind wheel and a wind guide ring, the wind wheel is arranged at the head of the rotor, and the wind guide ring is arranged on the head shell;
the wind wheel is provided with a plurality of fourth dustproof pieces, the side surface of the wind guide ring facing the wind wheel is provided with a plurality of fifth dustproof pieces, after the wind wheel and the wind guide ring are installed, each fourth dustproof piece is positioned between two adjacent fifth dustproof pieces, and the fourth dustproof pieces and the fifth dustproof pieces are matched to form a third dustproof channel;
a gear sleeve is arranged at the extending part of a bevel gear in the angle grinder shell, and a plurality of flow guide raised lines are arranged on the outer wall of the gear sleeve in the circumferential direction;
the tail part of the rotor in the rear shell is provided with a connecting piece;
be provided with sixth dustproof piece and seventh dustproof piece on the backshell, sixth dustproof piece with be formed with between the seventh dustproof piece and hold the cavity, be provided with eighth dustproof piece on the connecting piece, work as the connecting piece with the backshell installation back that finishes, eighth dustproof piece penetrate extremely hold in the cavity, and by sixth dustproof piece seventh dustproof piece with form the fourth dustproof passageway after the cooperation of eighth dustproof piece.
In the above scheme, preferably, the head cover further includes a ninth dust-proof piece, and when the bearing cover and the head cover are mounted, the second dust-proof piece penetrates into a cavity formed between the third dust-proof piece and the ninth dust-proof piece.
In the above scheme, preferably, the top surface of the first dust-proof piece is provided with a plurality of first flanges, all the first flanges and the first dust-proof piece are matched to form a stepped structure, the third dust-proof piece is provided with a plurality of second flanges which are matched with the first flanges in a one-to-one correspondence manner, and all the second flanges and the third dust-proof piece are matched to form a stepped structure.
In the above scheme, preferably, a spring is arranged between the outer sleeve and the inner sleeve, one end of the spring abuts against the inner wall of the pin cover, and the other end of the spring abuts against the bottom surface of the casting inside the flange.
In the above scheme, preferably, the inner sleeve is provided with a pin rod in a matching manner, and the lower end of the pin rod is matched with a groove body formed in a gear disc in the motor casting.
In the above scheme, preferably, the flow guide convex strips are circumferentially and uniformly arranged on the outer wall of the gear sleeve.
In the above scheme, preferably, the setting angle of the flow guide protruding strip corresponds to the setting angle of the gear teeth of the bevel gear.
In the above scheme, it is preferable that the connecting piece is provided with a groove body on one side of the eighth dust-proof piece, and when the connecting piece and the rear shell are installed completely, the sixth dust-proof piece penetrates into the groove body and forms a dust-proof channel after being matched with the connecting piece and the sixth dust-proof piece.
In the foregoing aspect, preferably, the sixth dust-proof member and the seventh dust-proof member are concentrically disposed.
In the foregoing aspect, preferably, the first dust-proof piece, the second dust-proof piece, the third dust-proof piece, the fourth dust-proof piece, the fifth dust-proof piece, the sixth dust-proof piece, the seventh dust-proof piece, the eighth dust-proof piece, and the ninth dust-proof piece are all annular in shape.
The invention has the beneficial effects that: the related dustproof component has a simple structure, is integrated on the original component through a plurality of parts needing dustproof in the angle grinder, and forms a dustproof body through the matching relationship between the original components, thereby effectively playing a dustproof role, protecting the components in the angle grinder and prolonging the service life of the angle grinder.
Drawings
FIG. 1 is a schematic view of the angle grinder of the present invention.
Fig. 2 is a schematic sectional view of the bearing cap of the present invention in an assembled state.
FIG. 3 is a schematic view of a bearing cap according to the present invention.
Fig. 4 is a schematic view of the inventive closure.
FIG. 5 is a cross-sectional view showing the state of the pin cover of the present invention.
Fig. 6 is a schematic view of the installation state of the wind wheel and the wind guide ring of the invention.
Fig. 7 is a sectional view schematically showing the installation state of the wind rotor and the wind guide ring according to the present invention.
FIG. 8 is a schematic view of an air guide ring according to the present invention.
Figure 9 is a schematic view of a wind wheel according to the invention.
FIG. 10 is an exploded view of the gear sleeve and adjacent components of the present invention.
FIG. 11 is a schematic view of a gear sleeve of the present invention.
FIG. 12 is a schematic view of the engagement of the gear sleeve and bevel gear of the present invention.
Fig. 13 is a cross-sectional view illustrating a state in which the connector of the present invention is coupled to the rear case.
Fig. 14 is a schematic view of a connector of the present invention.
Fig. 15 is a schematic view of the rear housing of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-15, the angle grinder dust-proof assembly comprises an angle grinder shell 1, wherein the angle grinder shell 1 comprises a head cover 11, a head shell 12 and a rear shell 13, the head cover 11 is in fit connection with the head shell 12, and the head shell 12 is in fit connection with the rear shell 13.
Be provided with on the skull 11 rather than complex bearing cap 2, set up the first through-hole 21 with angle mill pivot 14 complex on the bearing cap 2, and first through-hole 21 periphery is provided with first dustproof 22 and second dustproof 23, and wherein, the shape of first dustproof 22 and second dustproof 23 is cyclic annular, and the diameter of second dustproof 23 is greater than the diameter of first dustproof 22.
The first dustproof piece 22, the second dustproof piece 23 and the first through hole 21 are concentrically arranged and are concentrically designed, the matching degree of the first dustproof piece and the second dustproof piece is improved, and the dustproof effect is improved.
The head cover 11 is provided with a second through hole 111 matched with the angle grinder rotating shaft 14, and a third dustproof piece 112 and a ninth dustproof piece 113 are arranged on the periphery of the second through hole 111, wherein the third dustproof piece 112 and the ninth dustproof piece 113 are both annular, and the diameter of the ninth dustproof piece 113 is larger than that of the third dustproof piece 112.
The third dust-proof piece 112, the ninth dust-proof piece 113 and the second through hole 111 are concentrically arranged and are concentrically designed with each other, so that the matching degree of the third dust-proof piece and the ninth dust-proof piece is improved, and the dust-proof effect is improved.
Work as bearing cap 2 with the back is accomplished in the installation of skull 11, third dust-proof 112 penetrates to first dust-proof 22 with the cavity that forms between the second dust-proof 23 is internal, and with first dust-proof 22 with the cooperation of second dust-proof 23 forms first dustproof passageway, second dust-proof 23 penetrates to third dust-proof 112 with the cavity that forms between the ninth dust-proof 113 is internal, and with third dust-proof 112 with the cooperation of ninth dust-proof 113 forms supplementary dustproof passageway, and this supplementary dustproof passageway and first dustproof passageway intercommunication strengthen dustproof effect, and outside gas gets into the inside dustproof passageway entering that needs of angle mill, receives blockking of the dustproof passageway inner wall of bending form, and the effectual dustproof effect that has played, compromise leak protection oil simultaneously, and do not influence the wind-guiding.
Preferably, the top surface of the first dust-proof part 22 is provided with a plurality of first flanges 221, all the first flanges 221 are matched with the first dust-proof part 22 to form a step structure, the third dust-proof part 112 is provided with a plurality of second flanges 1121, which are matched with the first flanges 221 in a one-to-one correspondence manner, and all the second flanges 1121 are matched with the third dust-proof part 112 to form a step structure. Add first flange and second flange, the length of extension dustproof passageway to strengthen whole dustproof effect.
Preferably, the first dust-proof member 22 and the second dust-proof member 23 are formed integrally with the bearing cap 2, and the third dust-proof member 112 and the fourth dust-proof member 41 are formed integrally with the head cap 11.
The head shell 12 is provided with a pin cover 3, the pin cover 3 comprises an outer sleeve 31 and an inner sleeve 32 which extend in the same direction, the motor casting 15 is provided with a flange 151 which is matched with the outer sleeve 31, preferably, the extension length of the outer sleeve 31 is greater than that of the inner sleeve 12, wherein the motor casting 15 is a part of the head shell 12.
A cavity 33 for accommodating a flange 151 of the motor casting 15 is formed between the outer sleeve 31 and the inner sleeve 32, the outer sleeve 31 and the flange 151 cooperate to form a second dustproof passage, a spring 34 is arranged between the outer sleeve 31 and the inner sleeve 32, one end of the spring 34 abuts against the inner wall of the pin cover 3, and the other end abuts against the bottom surface of the casting inside the flange 151, preferably, the upper end of the spring 34 is located in the cavity 33, when no external force acts on the spring 34, the motor casting flange 151 is arranged between the outer sleeve 31 and the inner sleeve 32 in a penetrating manner, and the upper edge of the flange 151 is located above the lower edge of the outer sleeve 31, that is, under the premise, an overlapping part exists between the outer sleeve 31 and the flange 151 in the horizontal direction, and the overlapping part has a gap which is a first passage for external dust to enter.
The outer sleeve 31 and the first passage are main dustproof parts, and a first bent dustproof passage is formed at the main dustproof part and plays a main dustproof role.
When the spring 34 is not applied with an external force, the upper edge of the flange 151 is located above the lower edge of the inner sleeve 32, that is, in this case, there is an overlapping portion between the flange 151 and the inner sleeve 32 in the horizontal direction, and the overlapping portion has a gap which is a second passage for external dust to enter.
The first channel and the second channel are combined to form a second dustproof channel, and the first dustproof channel is matched with the outer sleeve 31 to form a bent dustproof channel with more turning positions and longer channel length, so that the dustproof effect is enhanced.
Preferably, a pin rod 35 is arranged at the inner sleeve 32 in a matching manner, and the lower end of the pin rod 35 is matched with a groove body formed on the gear disc 16 in the motor casting 15.
The spring 34 and the pin 35 are matched, so that an additional dustproof blocking part is arranged, and the dustproof effect of the whole device is enhanced.
Preferably, the upper end of the pin rod 35 is provided with a plurality of limiting flanges matched with the inner sleeve 32. The degree of fit between the pin rod and the pin cover is strengthened, and the pin rod is prevented from falling off from the pin cover.
Preferably, the inner sleeve 32, the outer sleeve 31 and the motor casting flange 151 are all concentric. The pin rod is convenient to press down to perform locking operation, and the components are prevented from being clamped.
The angle grinder shell 1 is provided with a wind wheel 4 and a wind guide ring 5, the wind wheel 4 is arranged at the head of the rotor 17, and the wind guide ring 5 is arranged on the head shell 12.
The wind wheel 4 is provided with a plurality of fourth dust-proof pieces 41, preferably, the fourth dust-proof pieces 41 and the wind wheel 4 are integrally formed, and the number of the fourth dust-proof pieces 41 is two.
The side surface of the wind guide ring 5 facing the wind wheel 4 is provided with a plurality of fifth dust-proof pieces 51, preferably, the fifth dust-proof pieces 51 and the wind guide ring 5 are integrally formed, the number of the fifth dust-proof pieces 51 is one more than that of the fourth dust-proof pieces 41, that is, when the number of the fourth dust-proof pieces 41 is two, the number of the fifth dust-proof pieces 51 is three.
Preferably, the fourth dust-proof member 41 and the fifth dust-proof member 51 are both annular in shape. The annular design guarantees to form holistic dustproof passageway between wind wheel 4 and the wind-guiding circle 5, promotes dustproof effect.
All fourth dustproof 41 all sets up with one heart, and diameter from inside to outside crescent, all fifth dustproof 51 all sets up with one heart, and diameter from inside to outside crescent, and fourth dustproof 41 and fifth dustproof 51 all designs with one heart each other, promotes the degree of cooperation between them, promotes dustproof effect.
After the wind wheel 4 and the wind guide ring 5 are installed, each fourth dust-proof piece 41 is located between two adjacent fifth dust-proof pieces 51, and gaps between the fourth dust-proof pieces 41 and the fifth dust-proof pieces 51 are combined to form a third dust-proof channel.
That is, after the wind wheel 4 and the wind guide ring 5 are installed, the fourth dust-proof member 41 penetrates between two adjacent fifth dust-proof members 51, the obtained result can be visualized from the sectional view, the multiple fourth dust-proof members 41 and the multiple fifth dust-proof members 51 form a channel with multiple curves, and the air needs to move forward along each curve in sequence, so that the efficient dust-proof purpose is realized.
The bevel gear 18 in the angle grinder shell 1 is provided with a gear sleeve 6 at an extension part 181, and preferably, the gear sleeve 6 is arranged at the extension part 181 of the bevel gear 18 in an interference fit manner and rotates along with the rotation of the bevel gear 18.
A plurality of flow guide convex strips 61 are arranged on the outer wall of the gear sleeve 6 in the circumferential direction, preferably, the setting angle of the flow guide convex strips 61 corresponds to the setting angle of the gear teeth 182 of the bevel gear 18, and the flow guide convex strips are uniformly arranged on the outer wall of the gear sleeve 6 in the circumferential direction.
The direction of the flow guiding convex strip 61 is opposite to the direction of the blades on the air guiding ring 5, and the flow guiding convex strip is arranged from one side facing the bevel gear 18 to the other side in an inclined manner.
A plurality of groove bodies 62 are formed in the side face, facing the bevel gear 18, of the gear sleeve 6, and the groove bodies 62 are circumferentially and uniformly formed in the side face of the gear sleeve 6. Increase this department gas and hold the volume, guarantee this department gaseous stable distribution, strengthen the intensity of gas-liquid, increase leak protection oil effect.
Through addding gear sleeve 6 rather than synchronous pivoted in bevel gear 18 department, reduce and the motor casting between the clearance to promote dustproof effect, simultaneously, because of the circumference is provided with water conservancy diversion sand grip 61 on gear sleeve 6, make it produce the gas fluid when rotatory, this gas fluid can be with oil toward returning, thereby avoids the emergence of oil leak phenomenon.
The rear shell 13 is provided with a sixth dust-proof piece 131 and a seventh dust-proof piece 132, wherein the sixth dust-proof piece 131 and the seventh dust-proof piece 132 are both annular, an accommodating cavity 133 is formed between the sixth dust-proof piece 131 and the seventh dust-proof piece 132, and the accommodating cavity 133 is also annular.
Preferably, the sixth dust-proof member 131 and the seventh dust-proof member 132 are concentrically disposed. The mutual concentric design promotes the degree of cooperation between them, promotes dustproof effect. The diameter of the sixth dust-proof member 131 is smaller than that of the seventh dust-proof member 132, and the height of the sixth dust-proof member 131 is smaller than that of the seventh dust-proof member 132. The piece that leans on outer setting is higher can block most dust, cooperates dustproof passage again, forms reliable dustproof construction.
Rotor afterbody in backshell 13 is provided with connecting piece 7, and connecting piece 7 cover is established on the axle of rotor afterbody, is located between bearing and the rotor body, be provided with eighth dustproof 71 on the connecting piece 7, wherein, the shape of eighth dustproof 71 is cyclic annular, and its and connecting hole 72 that the confession rotor axle of seting up on the connecting piece 7 set up with concentrically, work as connecting piece 7 with backshell 13 installation back that finishes, eighth dustproof 71 penetrate extremely hold in the cavity 133, and by sixth dustproof 131 seventh dustproof 132 with form the fourth dustproof passageway behind the cooperation of eighth dustproof 71.
Preferably, a groove 73 is formed in the connecting member 7 on one side of the eighth dust-proof member 71, and after the connecting member 7 and the rear shell 13 are mounted, the sixth dust-proof member 131 penetrates into the groove 73, and a dust-proof channel is formed by the cooperation of the connecting member 7 and the sixth dust-proof member 131. Increase the length of dustproof passageway, promote holistic dustproof effect.
After connecting piece 7 and backshell 13 are installed, sixth dust-proof 131 penetrates in the groove body 73, eighth dust-proof 71 penetrates and holds the cavity 133, two above-mentioned parts penetrate the back, all leave the clearance with between the adjacent part, above-mentioned structure forms the dustproof passageway of a crook jointly, outside dust need enter into rotor department promptly, need just can enter along dustproof passageway, a plurality of faces of blockking of dustproof passageway department stop the dust layer upon layer, thereby play dustproof effect.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. Dustproof subassembly of angle mill, including the angle mill casing, its characterized in that: the angle grinder shell comprises a head cover, a head shell and a rear shell, wherein the head cover is connected with the head shell in a matched mode, and the head shell is connected with the rear shell in a matched mode;
the head cover is provided with a bearing cover matched with the head cover;
the bearing cover is provided with a first through hole matched with a rotating shaft of the angle grinder, a first dustproof piece and a second dustproof piece are arranged on the periphery of the first through hole, the head cover is provided with a second through hole matched with the rotating shaft of the angle grinder, a third dustproof piece is arranged on the periphery of the second through hole, and after the bearing cover and the head cover are installed, the third dustproof piece penetrates into a cavity formed between the first dustproof piece and the second dustproof piece and is matched with the first dustproof piece and the second dustproof piece to form a first dustproof channel;
a pin cover is arranged on the head shell;
the pin cover comprises an outer sleeve and an inner sleeve which extend in the same direction, a cavity for accommodating a flange of a motor casting is formed between the outer sleeve and the inner sleeve, and the outer sleeve and the flange are matched to form a second dustproof channel;
the angle grinder shell is provided with a wind wheel and a wind guide ring, the wind wheel is arranged at the head of the rotor, and the wind guide ring is arranged on the head shell;
the wind wheel is provided with a plurality of fourth dustproof pieces, the side surface of the wind guide ring facing the wind wheel is provided with a plurality of fifth dustproof pieces, after the wind wheel and the wind guide ring are installed, each fourth dustproof piece is positioned between two adjacent fifth dustproof pieces, and the fourth dustproof pieces and the fifth dustproof pieces are matched to form a third dustproof channel;
a gear sleeve is arranged at the extending part of a bevel gear in the angle grinder shell, and a plurality of flow guide raised lines are arranged on the outer wall of the gear sleeve in the circumferential direction;
the tail part of the rotor in the rear shell is provided with a connecting piece;
be provided with sixth dustproof piece and seventh dustproof piece on the backshell, sixth dustproof piece with be formed with between the seventh dustproof piece and hold the cavity, be provided with eighth dustproof piece on the connecting piece, work as the connecting piece with the backshell installation back that finishes, eighth dustproof piece penetrate extremely hold in the cavity, and by sixth dustproof piece seventh dustproof piece with form the fourth dustproof passageway after the cooperation of eighth dustproof piece.
2. The angle grinder dust collection assembly of claim 1, wherein: the head cover is further provided with a ninth dustproof piece, and when the bearing cover and the head cover are installed completely, the second dustproof piece penetrates into a cavity formed between the third dustproof piece and the ninth dustproof piece.
3. The angle grinder dust collection assembly of claim 1, wherein: first dustproof top surface is provided with a plurality of first flanges, all first flange with form the stepped structure after the cooperation of first dustproof, third dustproof department be provided with a plurality of with first flange one-to-one complex second flange, all the second flange with form the stepped structure after the cooperation of third dustproof.
4. The angle grinder dust collection assembly of claim 1, wherein: and a spring is arranged between the outer sleeve and the inner sleeve, one end of the spring is abutted against the inner wall of the pin cover, and the other end of the spring is abutted against the bottom surface of the casting inside the flange.
5. The angle grinder dust collection assembly of claim 4, wherein: the inner sleeve is provided with a pin rod in a matching way, and the lower end of the pin rod is matched with a groove body formed in a gear disc in the motor casting.
6. The angle grinder dust collection assembly of claim 1, wherein: the flow guide convex strips are circumferentially and uniformly arranged on the outer wall of the gear sleeve.
7. The angle grinder dust collection assembly of claim 1 or 6, wherein: the setting angle of the flow guide convex strip corresponds to the setting angle of the gear teeth of the bevel gear.
8. The angle grinder dust collection assembly of claim 1, wherein: the connecting piece is located eighth dustproof one side is provided with the groove body, works as the connecting piece with the backshell installation back that finishes, the sixth dustproof penetrate to it is internal to the recess, and by the connecting piece with form dustproof passageway after the cooperation of sixth dustproof.
9. The angle grinder dust collection assembly of claim 1 or 8, wherein: the sixth dust-proof member and the seventh dust-proof member are concentrically arranged.
10. The angle grinder dust collection assembly of claim 2, wherein: the first dustproof piece, the second dustproof piece, the third dustproof piece, the fourth dustproof piece, the fifth dustproof piece, the sixth dustproof piece, the seventh dustproof piece, the eighth dustproof piece and the ninth dustproof piece are all annular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217712.8A CN110900400B (en) | 2019-12-03 | 2019-12-03 | Dustproof assembly of angle grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217712.8A CN110900400B (en) | 2019-12-03 | 2019-12-03 | Dustproof assembly of angle grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110900400A CN110900400A (en) | 2020-03-24 |
| CN110900400B true CN110900400B (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911217712.8A Active CN110900400B (en) | 2019-12-03 | 2019-12-03 | Dustproof assembly of angle grinder |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008049469A (en) * | 2006-08-24 | 2008-03-06 | Saito Shokai:Kk | Dust collecting cover |
| TW200838641A (en) * | 2007-03-30 | 2008-10-01 | Basso Ind Corp | Grinding machine having dustproof effect |
| DE102011076627A1 (en) * | 2011-05-27 | 2012-11-29 | Robert Bosch Gmbh | Motor-driven hand grinder |
| CN202572107U (en) * | 2012-05-09 | 2012-12-05 | 海峰机械工业股份有限公司 | Dustproof grinding machine |
| CN203409632U (en) * | 2013-07-22 | 2014-01-29 | 南通东利德工具有限公司 | Dustproof angle grinder |
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2019
- 2019-12-03 CN CN201911217712.8A patent/CN110900400B/en active Active
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| CN110900400A (en) | 2020-03-24 |
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Denomination of invention: Dust prevention component of angle grinder Effective date of registration: 20231011 Granted publication date: 20210319 Pledgee: Yongkang branch of the Industrial Commercial Bank of China Ltd. Pledgor: Yongkang Lingwei Electric Appliance Co.,Ltd. Registration number: Y2023980060598 |