CN215239997U

CN215239997U - Angle grinder

Info

Publication number: CN215239997U
Application number: CN202121207182.1U
Authority: CN
Inventors: 郑少阳
Original assignee: Shanghai Chuanyu Technology Co ltd
Current assignee: Shanghai Chuanyu Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-21
Anticipated expiration: 2031-06-01

Abstract

The utility model provides an angle grinder, which comprises a dust absorption cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust absorption cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate; the rotor is provided with a dust collection impeller which is arranged in the dust collection cavity; the rotor rotates to drive the dust collection impeller to form negative pressure in the dust collection cavity, and the dust collection cavity is provided with a dust outlet; the cutting chamber with through dust absorption pipeline intercommunication between the motor chamber, the dirt bits of cutting intracavity pass through in proper order the dust absorption pipeline the motor chamber gets into the dust absorption chamber follows the dust outlet discharges, has solved the dust particle that produces in the production process and to air pollution's problem, has also improved workman operational environment.

Description

Angle grinder

Technical Field

The utility model relates to a cutting equipment technical field especially relates to an angle mill.

Background

In the prior art of angle grinder, for preventing the saw dust that produces from splashing among the saw bit cutting process, can set up the saw bit cover in the saw bit outside usually, through setting up the saw bit cover, can block the saw dust better and splash to user's department and then realize the protection to the user. However, in the function of preventing sawdust from splashing, the saw blade cover in the prior art only changes the direction of sawdust splashing to protect the user, but does not have a dust collection function, and still causes sawdust to be scattered into the working environment, thereby causing the working environment to be severe.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model aims to provide an angle grinder who possesses dust removal function.

The utility model discloses an angle grinder, which comprises a dust absorption cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust absorption cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate; the rotor is provided with a dust collection impeller which is arranged in the dust collection cavity; the rotor rotates to drive the dust collection impeller to form negative pressure in the dust collection cavity, and the dust collection cavity is provided with a dust outlet; the cutting chamber with communicate through dust absorption pipeline between the motor chamber, the dirt bits of cutting intracavity pass through in proper order dust absorption pipeline the motor chamber gets into the dust absorption chamber is followed the dust outlet is discharged.

Preferably, the cutting cavity comprises a protective cover and a saw blade arranged in the protective cover, the protective cover is provided with a cutting opening, one part of the saw blade is arranged in the protective cover, and the other part of the saw blade is exposed out of the cutting opening; the safety cover includes first protection portion and second protection portion, the second protection portion with first protection portion swing joint, the second protection portion for first protection portion follows saw bit circumferential direction is rotatory, with the change first protection portion with the area of overlapping between the second protection portion, thereby change the size of incision.

Preferably, one end of the dust suction pipe is arranged on the second protection part: the dust collection pipeline is a curved flexible pipeline, and the second protection part rotates to drive one end of the dust collection pipeline to move; or the dust absorption pipeline is a telescopic pipeline, and the size of the dust absorption pipeline is changed by rotating the second protection part.

Preferably, the protective cover comprises an axial mounting surface and a radial mounting surface, and the axial mounting surface and the radial mounting surface are adjustably connected through an adjusting piece so as to change the axial thickness of the protective cover.

Preferably, the saw blade is fixedly arranged on a rotating shaft, and the rotating shaft is connected with the rotor through a transmission assembly; the rotor rotates to drive the rotating shaft to rotate, and further drive the saw blade to rotate; the rotating shaft and the rotor are vertically arranged or arranged in parallel.

Preferably, the handle is arranged perpendicular to or parallel to the rotating shaft.

Preferably, the dust outlet is connected with a dust collecting container, and the dust collecting container is a dust collecting box or a dust collecting bag.

Preferably, the dust collection impeller comprises a dust collection wheel disc and dust collection blades, and the dust collection blades are circumferentially and equidistantly arranged on the dust collection wheel disc; the dust-absorbing blades are arc-shaped or spiral-shaped, and when the rotor rotates, the dust-absorbing impeller absorbs surrounding air to circulate along the radial direction of the rotor.

Preferably, the rotor is further provided with a heat dissipation impeller, the heat dissipation impeller comprises a heat dissipation wheel disc and heat dissipation blades, and the heat dissipation blades are circumferentially arranged on the heat dissipation wheel disc at equal intervals; one or two surfaces of the heat dissipation wheel disc are provided with the heat dissipation blades; the heat dissipation blades are linear, arc or spiral, and the contact area between the rotor and air is enlarged by connecting the heat dissipation blades, the heat dissipation wheel disc and the rotor.

Preferably, the driving motor is further connected with a cable, a cable protective sleeve is arranged outside the cable, and the cable protective sleeve is connected with the motor cavity.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

1. the original driving motor of the angle grinder is utilized to rotate, the dust collection impeller on the rotor is driven to rotate, and a dust collection channel is formed in the cutting cavity, the motor cavity and the dust collection cavity through the dust collection pipeline, so that the angle grinder has a dust collection function, the problem that dust particles generated in the production process pollute air is solved, the working environment of workers is improved, and the health of the workers is guaranteed;

2. through setting up rotatoryly the angle mill operation method of multi-angle, many area selection has been realized to the safety cover to adapt to demands such as different operating personnel's height, use custom, it is more humanized.

Drawings

Fig. 1 is an exploded view of a front view of an angle grinder provided by the present invention;

FIG. 2 is an exploded view of the angle grinder of the present invention in another direction different from that of FIG. 1;

FIG. 3 is a front view of the angle grinder provided by the present invention;

FIG. 4 is a sectional view taken along the A direction of the front view of the angle grinder provided by the present invention;

FIG. 5 is a left side view of the angle grinder provided by the present invention;

FIG. 6 is a rear view of the angle grinder provided by the present invention;

FIG. 7 is a top view of the angle grinder provided by the present invention;

FIG. 8 is a bottom view of the angle grinder provided by the present invention;

FIG. 9 is a perspective view of the angle grinder provided by the present invention;

fig. 10 is a perspective view of the angle grinder provided by the present invention, in another direction different from that of fig. 9.

Wherein, 1-, a first protection part, 2-a second protection part, 3-a saw blade, 4-a pressing sheet, 5-a dust-absorbing blade, 6-a radiating blade, 7-a dust-discharging pipe, 8-a transmission component, 9-a cable, 10-a cable protection sleeve, 11-a handle and 12-a rotating shaft,

Detailed Description

The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.

Referring to the attached drawings 1-10, the utility model discloses an angle grinder, which comprises a dust suction cavity, a motor cavity and a cutting cavity, wherein a rotor is arranged in the dust suction cavity, the motor cavity and the cutting cavity in a penetrating way; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate. The rotor is provided with a dust collection impeller, the dust collection impeller is arranged in the dust collection cavity, the rotor rotates to drive the dust collection impeller to form negative pressure in the dust collection cavity, the dust collection cavity is provided with a dust outlet, the rotor rotates to drive the impeller assembly to rotate, a wind force is formed in the cavity, the directional end of the wind force in the cavity is made to be negative pressure, and therefore the effect of dust collection is achieved inside the angle grinder.

The cutting cavity is provided with an air inlet, the motor cavity is also provided with an air inlet, and the air inlet of the cutting cavity and the air inlet of the motor cavity are connected together by using a dust absorption pipeline, so that the sealing between the cutting cavity and the motor cavity is ensured.

The cutting cavity is communicated with the motor cavity through a dust suction pipeline, and dust in the cutting cavity sequentially enters the dust suction cavity through the dust suction pipeline and the motor cavity and is discharged from the dust outlet. When the angle grinder is used for grinding objects, dust and flying chips generated in the cutting cavity are sucked by the dust suction impeller, more than 95% of dust particles generated in the cutting process can be removed, the dust and flying chips are prevented from being sucked into a body II by a user to cause harm, the problem of air pollution caused by the dust particles generated in the production process is solved, the working environment of workers is also improved, and the health of the workers is guaranteed.

Preferably, the cutting cavity comprises a protective cover and a saw blade 3 arranged in the protective cover, the saw blade 3 is fixed through pressing sheets 4 on two sides, a cutting opening is formed in the protective cover, one part of the saw blade 3 is arranged in the protective cover, and the other part of the saw blade is exposed out of the cutting opening and used for cutting an object.

The safety cover includes first protection portion 1 and second protection portion 2, first protection portion 1 is semi-circular, the cover is located outside saw bit 3,

second protection portion

2 and 1 swing joint of first protection portion, second protection portion 2 is for 1 along 3 circumference rotations of saw bit of first protection portion to change the overlapping area between first protection portion 1 and second protection portion 2, thereby change the size of cutting opening, and then change the position and the size of saw bit 3 that expose outside the safety cover.

For example, the exposed portion of the saw blade 3 can be rotated 180 degrees, 90 degrees or 270 degrees, and any angle between 90 degrees and 270 degrees due to the rotation of the second protection part 2, so as to meet the requirements of different operators on height, use habits and the like.

When the size of protection cover is because of the rotatory grow of second protection portion 2 is, can make the protection area of polisher bigger more comprehensive, also make the better collection of ability of the dust that work produced simultaneously.

The preferred, on second protection portion 2 was located to dust absorption pipeline one end, the rotatory in-process of second protection portion 2 will drive dust absorption pipeline and take place the displacement, so the utility model discloses establish dust absorption pipeline into curved flexible pipeline for the rotatory one end that drives dust absorption pipeline of 2 rotations of second protection portion removes.

The flexible curved suction duct is usually made of plastic, but is not limited thereto.

In other embodiments, the dust suction duct may also be a telescopic duct, and the second protection part 2 rotates to directly change the size of the dust suction duct to accommodate the displacement.

Preferably, the protective cover comprises an axial mounting surface and a radial mounting surface, and the axial mounting surface and the radial mounting surface are adjustably connected through an adjusting piece so as to change the axial thickness of the protective cover. The regulating part is the bolt usually, and the thickness that can change the safety cover is changed to the mounting depth who changes the bolt to can hold the different saw bit 3 of thickness, so that the utility model discloses be used as cutting machine or angle mill.

In another embodiment, the boot includes a first boot and a second boot, the first boot having an axial thickness greater than an axial thickness of the second boot. The saw blade 3 comprises a first blade and a second blade, the axial thickness of the first blade being greater than the axial thickness of the second blade. The first protective cover, the second protective cover, the first saw blade and the second saw blade are all detachable pieces, and when the angle grinder provided by the utility model is used as a cutting machine, the second protective cover and the second saw blade are installed in a matching way; when the angle grinder is used, a first protective cover is adopted to be matched with the first saw blade 3 for installation.

Preferably, the saw blade 3 is fixedly arranged on a rotating shaft 12, and the rotating shaft 12 is connected with the rotor through a transmission assembly 8; the rotor rotates to drive the rotating shaft 12 to rotate, and further drives the saw blade 3 to rotate to polish an object.

In the preferred embodiment provided by the present invention, the rotating shaft 12 is perpendicular to the rotor, and the transmission member can adopt worm and gear to realize the transmission of forces in different directions.

In other embodiments, the rotating shaft 12 and the rotor may also be arranged in parallel, and more preferably, the rotating shaft 12 and the rotor are coaxial, so that a better transmission effect can be achieved.

Preferably, the sander further comprises a handle 11 for an operator to hold the sander, and in the preferred embodiment of the present invention, the handle 11 is perpendicular to the rotating shaft 12, so that the holding force is better and stable.

In other embodiments, the handle 11 and the rotating shaft 12 can be arranged in parallel to meet different scene requirements.

Preferably, the dust outlet opposite to the cutting part is of an open design, and the outside can be connected with and installed with different dust collecting containers, including but not limited to a dust collecting bag, a dust collecting box, and the like. The dust outlet is usually in the form of a dust exhaust pipe 7, and a dust bag or a dust box is directly connected to the dust exhaust pipe 7.

Preferably, the dust collection impeller comprises a dust collection wheel disc and dust collection blades 5, and the dust collection blades 5 are circumferentially and equidistantly arranged on the dust collection wheel disc; the dust-absorbing blade 5 is arc-shaped, and when the rotor rotates, the dust-absorbing impeller absorbs surrounding air to circulate along the radial direction of the rotor, so that negative pressure is formed in the dust-absorbing cavity.

In other embodiments, the cleaning blade 5 may also be helical.

Preferably, the rotor is further provided with a heat dissipation impeller, the heat dissipation impeller comprises a heat dissipation wheel disc and heat dissipation blades 6, and the heat dissipation blades 6 are circumferentially and equidistantly arranged on the heat dissipation wheel disc. The radiating blades 6 are linear, and the contact area between the rotor and air is enlarged by connecting the plurality of radiating blades 6, the radiating wheel disc and the rotor.

In the embodiment, the two sides of the heat-radiating wheel disc are provided with heat-radiating blades 6; in other embodiments, the heat dissipating blades 6 may be disposed on only one side of the heat dissipating disk to save space.

In other embodiments, the heat dissipation fins 6 may also be circular arc or spiral, which is not limited herein.

Preferably, the driving motor is further connected with a cable 9, the cable 9 is connected with an electric plug and used for supplying power to the driving motor, a cable protective sleeve 10 is arranged outside the cable 9, and the cable protective sleeve 10 is connected with the motor cavity to guarantee power utilization safety.

In other embodiments, a lithium battery may also be used to supply power to the driving motor, which is not limited herein.

It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An angle grinder is characterized by comprising a dust suction cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust suction cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate;

the rotor is provided with a dust collection impeller which is arranged in the dust collection cavity;

the rotor rotates to drive the dust collection impeller to form negative pressure in the dust collection cavity, and the dust collection cavity is provided with a dust outlet; the cutting chamber with communicate through dust absorption pipeline between the motor chamber, the dirt bits of cutting intracavity pass through in proper order dust absorption pipeline the motor chamber gets into the dust absorption chamber is followed the dust outlet is discharged.

2. The angle grinder of claim 1, wherein the cutting chamber comprises a protective cover and a saw blade disposed in the protective cover, the protective cover having a cutting opening, the saw blade being partially disposed in the protective cover and partially exposed outside the cutting opening;

the safety cover includes first protection portion and second protection portion, the second protection portion with first protection portion swing joint, the second protection portion for first protection portion follows saw bit circumferential direction is rotatory, with the change first protection portion with the area of overlapping between the second protection portion, thereby change the size of incision.

3. The angle grinder of claim 2, wherein one end of the dust suction duct is provided on the second protecting portion:

the dust collection pipeline is a curved flexible pipeline, and the second protection part rotates to drive one end of the dust collection pipeline to move;

or the dust absorption pipeline is a telescopic pipeline, and the size of the dust absorption pipeline is changed by rotating the second protection part.

4. The angle grinder of claim 2, wherein the protective cover includes an axial mounting surface and a radial mounting surface, the axial mounting surface being adjustably connected to the radial mounting surface by an adjustment member to vary an axial thickness of the protective cover.

5. The angle grinder of claim 2, wherein the saw blade is fixedly arranged on a rotating shaft, and the rotating shaft is connected with the rotor through a transmission assembly; the rotor rotates to drive the rotating shaft to rotate, and further drive the saw blade to rotate;

the rotating shaft and the rotor are vertically arranged or arranged in parallel.

6. The angle grinder of claim 5, further comprising a handle disposed perpendicular or parallel to the shaft.

7. The angle grinder of claim 1, wherein the dust outlet is connected to a dust collecting container, and the dust collecting container is a dust collecting box or a dust collecting bag.

8. The angle grinder of claim 1, wherein the dust suction impeller comprises a dust suction wheel disc and dust suction blades, and the dust suction blades are circumferentially arranged on the dust suction wheel disc at equal intervals;

the dust-absorbing blades are arc-shaped or spiral-shaped, and when the rotor rotates, the dust-absorbing impeller absorbs surrounding air to circulate along the radial direction of the rotor.

9. The angle grinder as claimed in claim 1, wherein the rotor is further provided with a heat dissipation impeller, the heat dissipation impeller comprises a heat dissipation wheel disc and heat dissipation blades, and the heat dissipation blades are circumferentially arranged on the heat dissipation wheel disc at equal intervals; one or two surfaces of the heat dissipation wheel disc are provided with the heat dissipation blades;

the heat dissipation blades are linear, arc or spiral, and the contact area between the rotor and air is enlarged by connecting the heat dissipation blades, the heat dissipation wheel disc and the rotor.

10. The angle grinder of claim 1, wherein a cable is further connected to the drive motor, a cable protective sleeve is arranged outside the cable, and the cable protective sleeve is connected with the motor cavity.