CN114074274A

CN114074274A - Dust collection shield and angle mill of angle mill

Info

Publication number: CN114074274A
Application number: CN202010842862.4A
Authority: CN
Inventors: 齐凯; 乐军
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2022-02-22
Anticipated expiration: 2040-08-20
Also published as: CN114074274B

Abstract

The invention discloses a dust collecting shield of an angle grinder and the angle grinder, belonging to the technical field of electric tools, wherein the dust collecting shield comprises a shield body and an adjusting plate, one side of the shield body is provided with a notch for a slice to extend out, the adjusting plate is arranged at the notch, one end of the adjusting plate is rotatably connected with the front end of the shield body, the other end of the adjusting plate is detachably connected with the shield body, and an included angle between the adjusting plate and the bottom surface of the shield body is adjustable; the front end of the cover body is provided with an opening portion which is configured to accommodate one end of the adjusting plate when the adjusting plate rotates relative to the cover body, so that the included angle between the adjusting plate and the bottom surface of the cover body can be adjusted to at least 90 degrees. The angle grinder includes a dust collection shroud of the angle grinder as described above. When one end of the adjusting plate is detached, the adjusting plate rotates around the cover body, and the slices are convenient to replace; because the front end of the cover body is provided with the opening part, the adjusting plate cannot interfere with the cover body when rotating, the opening angle of the adjusting plate is large, and the slice is convenient to replace.

Description

Dust collection shield and angle mill of angle mill

Technical Field

The invention relates to the technical field of electric tools, in particular to a dust collection shield of an angle grinder and the angle grinder.

Background

The angle 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. The protective sleeve with the notch is generally sleeved outside the work slice of the angle grinder in the prior art, and the protective sleeve wraps half of the work slice and can play a certain role in protection.

Generally, one side that the protective sheath has the breach sets up an regulating plate, and the regulating plate cover is established on the work section, and the one end and the protective sheath of regulating plate rotate to be connected, and the other end can be dismantled with the protective sheath and be connected, and the angle between regulating plate and the protective sheath is adjustable to change the sliced depth of cut of work.

After using a period, need change the work section, but the turned angle of regulating plate is limited, interferes between regulating plate and the protective sheath for it is less to change the sliced operating space of work, and the installation is dismantled inefficiently.

Disclosure of Invention

The invention aims to provide a dust collection shield of an angle grinder and the angle grinder, and aims to solve the technical problem that in the prior art, an adjusting plate and a protective sleeve are interfered with each other, and work slices are not convenient to replace.

As the conception, the technical scheme adopted by the invention is as follows:

a dust collection shroud for an angle grinder, comprising:

the cover body is provided with a notch for extending the cut piece on one side;

the adjusting plate is arranged at the notch, one end of the adjusting plate is rotatably connected with the front end of the cover body, the other end of the adjusting plate is detachably connected with the cover body, and an included angle between the adjusting plate and the bottom surface of the cover body is adjustable;

an opening portion provided at a front end of the cover body and configured to receive the one end of the adjustment plate when the adjustment plate rotates relative to the cover body, so that an included angle between the adjustment plate and a bottom surface of the cover body can be adjusted to at least 90 degrees.

The front end of the cover body is provided with a support, the adjusting plate is rotatably connected with the support, and the opening part is formed in the support.

The end part of the adjusting plate is provided with a lock pin, the bracket is provided with an accommodating groove, and when the included angle between the adjusting plate and the bottom surface of the cover body is smaller than a set angle, the lock pin is positioned in the accommodating groove; when the included angle between the adjusting plate and the bottom surface of the cover body is equal to a set angle, the lock pin can move out along the opening direction of the accommodating groove.

Wherein, the regulating plate with the cover body rotates the one end of connecting and is provided with saw cuts the indicator, the regulating plate for the cover body rotates the back, the opening does saw cut the indicator and provide and dodge the space.

Wherein the maximum rotation angle of the adjusting plate relative to the bottom surface of the cover body is greater than 120 °.

The adjustable cover comprises a cover body and an adjusting plate, wherein the adjusting plate is connected with one end of the cover body in a detachable mode and provided with a ruler plate, a plurality of grooves are formed in the ruler plate, a clamping slide block is arranged at the rear end of the cover body, a protrusion is arranged on the clamping slide block, and the protrusion can be selectively clamped with the grooves.

Wherein, the chi board with the regulating plate rotates and is connected.

Wherein, the mounting hole has been seted up on the cover body, the ring all around of mounting hole is equipped with the flange, the flange has the opening, the opening part is provided with the rapid disassembly structure, the rapid disassembly structure includes locking lever and hasp, the open-ended both sides are provided with the connecting plate, the locking lever wears to locate the connecting plate, the hasp with the one end of locking lever is connected, through rotating the hasp can be taut the locking lever, and then two taut connecting plates make the opening diminishes, extremely the hasp laminating is in the outside of flange realizes locking.

Wherein, be provided with the wind channel on the cover body, the wind channel with the breach intercommunication, the wind channel is followed sliced tangential direction extends.

An angle grinder comprising a dust collecting hood of an angle grinder as described above, further comprising:

a main body;

a motor disposed inside the main body;

an accessory mounting device disposed at a front end of the body and configured to detachably mount the slice.

The invention has the beneficial effects that:

according to the dust collecting shield of the angle grinder, one side of the shield body is provided with the notch, so that part of the slices are positioned in the shield body, and part of the slices are exposed out of the shield body; the regulating plate sets up in breach department, and the one end of regulating plate is rotated with the front end of the cover body and is connected, and the other end can be dismantled with the cover body and be connected, and the contained angle between the bottom surface of the regulating plate and the cover body is adjustable, through changing the contained angle between the regulating plate and the cover body, can change sliced depth of cut. When one end of the adjusting plate is detached, the adjusting plate rotates around the cover body, and the slices are convenient to replace; because the front end of the cover body is provided with the opening, the one end of regulating plate can stretch into the opening when the regulating plate rotates for the contained angle of regulating plate and the bottom surface of the cover body can be adjusted 90 degrees at least, and can not interfere with the cover body, and the opening angle of regulating plate is great, the change section of being more convenient for.

Drawings

FIG. 1 is a schematic structural diagram of an angle grinder according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle configuration of the angle grinder provided in FIG. 1;

FIG. 3 is a schematic view of the angle grinder provided in FIG. 1 with the dust collecting shield omitted;

FIG. 4 is a schematic view of a partial structure of an angle grinder according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an adjusting plate in an open state according to an embodiment of the present invention;

FIG. 6 is a schematic view of another angle of the adjustment plate provided in FIG. 5 in an open state;

fig. 7 is a schematic structural view of an adjusting plate according to a second embodiment of the present invention in an open state;

FIG. 8 is a schematic structural view of the regulating plate and the ruler plate both in an open state according to the second embodiment of the present invention;

FIG. 9 is a schematic view of a part of the structure of an angle grinder provided in the third embodiment of the present invention;

fig. 10 is a schematic structural view of the adjustment plate provided in fig. 9 in a disassembled state.

In the figure:

10. a main body; 20. slicing;

1. a cover body; 11. an opening part; 12. blocking edges; 13. an air duct;

2. an adjusting plate; 21. a lock pin;

3. a support; 31. a containing groove;

4. a sawing indicator;

51. a lock lever; 52. locking;

61. a ruler plate; 62. clamping the sliding block; 63. a spring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

Referring to fig. 1 to 4, an embodiment of the present invention provides an angle grinder, which includes a main body 10, a slice 20, and a dust collecting shield, wherein a motor is disposed inside the main body 10, and an attachment mounting device is disposed at a front end of the main body 10, and is used for detachably mounting the slice 20. Specifically, the attachment mounting device includes a flange, the slice 20 is connected with an output shaft of the motor through the flange, and the slice 20 can rotate under the driving of the motor.

The dust collecting cover is detachably coupled to the main body 10, and after the dust collecting cover is mounted on the main body 10, the dust collecting cover surrounds half or more of the cut pieces 10, and a part of the cut pieces 20 is protruded from one side of the dust collecting cover. When the sliced sheet 20 is rotated, the dust collecting shield can prevent the debris generated by the grinding from entering the main body 10 and can reduce the possibility that the debris generated by the grinding is splashed to the user, thereby causing damage.

The dust collecting shield comprises a shield body 1 and an adjusting plate 2, wherein one side of the shield body 1 is provided with a notch for the extension of the slice 20, so that part of the slice 20 is positioned in the shield body 1, and part of the slice 20 is exposed out of the shield body 1; regulating plate 2 sets up in breach department, and regulating plate 2's one end is rotated with the front end of the cover body 1 and is connected, and the other end can be dismantled with the cover body 1 and be connected, and the contained angle between regulating plate 2 and the bottom surface of the cover body 1 is adjustable, through changing the contained angle between regulating plate 2 and the cover body 1, can change the depth of cut of section 20.

When one end of the adjusting plate 2 is disassembled, the adjusting plate 2 rotates around the cover body 1, and then the slices 20 are convenient to replace; the front end of the cover body 1 is provided with an opening portion 11, and the opening portion 11 is configured as the one end that can hold the regulating plate 2 when the regulating plate 2 rotates for the cover body 1 for the contained angle of regulating plate 2 and the bottom surface of the cover body 1 can be adjusted 90 degrees at least, and regulating plate 2 can not interfere with the cover body 1 when rotating, and the opening angle of regulating plate 2 is great, is more convenient for change section 20.

When the slice 20 is replaced, the adjusting plate 2 is opened, the cover body 1 does not need to be detached, the slice 20 is screwed at the notch of the cover body 1 through a tool, so that the slice 20 is separated from the accessory mounting device, and the slice 20 can be taken out from the cover body 1 along the radial direction of the slice 20 towards the direction far away from the cover body 1.

The opening 11 of the cover 1 can be integrally formed with the cover 1, so that the front end surface of the cover 1 is partially recessed backwards, and the rotation connection position of the adjusting plate 2 and the cover 1 is the edge of the opening 11.

In this embodiment, a bracket 3 is provided at the front end of the cover 1, the adjustment plate 2 is rotatably connected to the bracket 3, and an opening 11 is formed in the bracket 3. Specifically, the bracket 3 includes two support plates disposed at an interval, and an opening portion 11 is formed between the two support plates. The opening portion 11 may be an open-type opening formed at one side of the holder 3, or may be a recessed portion formed at one end of the holder 3, and the opening portion 11 is provided to be engaged with the adjustment plate 2 such that the opening portion 11 can allow a portion of the adjustment plate 2 to pass therethrough.

The end of the adjusting plate 2 is provided with a connecting lug which is positioned at the outer side of the supporting plate. The adjusting plate 2 is connected with the cover body 1 through a rotating shaft, and the rotating shaft penetrates through the connecting lug and the supporting plate. When the adjusting plate 2 is rotated, the engaging lugs are rotated at the outer side of the support plate without interfering with the support plate.

One end of the adjusting plate 2 rotatably connected with the cover body 1 is provided with a sawing indicator 4, and the sawing indicator 4 is used for indicating the cutting position of the slice 20, so that a user can operate the angle grinder conveniently. After the adjusting plate 2 rotates relative to the cover body 1, the opening part 11 provides an avoiding space for the saw cutting indicator 4, so that the adjusting plate 2 can rotate by a larger angle.

Saw cut and pass through bolted connection between indicator 4 and the regulating plate 2, saw cut and seted up rectangular hole on indicator 4, seted up the screw hole on the regulating plate 2, the screw passes rectangular hole and screw hole spiro union. Due to the arrangement of the elongated hole, the position of the sawing indicator 4 is adjustable in order to indicate the cutting position. The adjustment direction of the sawing indicator 4 is parallel to the rotation axis of the adjustment plate 2.

Referring to fig. 4, a mounting hole is formed in the cover body 1, a flange 12 is annularly arranged around the mounting hole, an opening is formed in the flange 12, and a quick-release structure is arranged at the opening. When the quick-release structure is opened, the cover body 1 can be detached from the main body 10, and due to the arrangement of the quick-release structure, the cover body 1 can be conveniently mounted and detached.

The quick-release structure comprises a lock rod 51 and a lock catch 52, connecting plates are arranged on two sides of an opening, the lock rod 51 penetrates through the connecting plates, the lock catch 52 is connected with one end of the lock rod 51, the lock catch 52 tightens the lock rod 51 by rotating the lock catch 52, the two connecting plates are tightened by the lock rod 51, the opening is reduced, and when the lock catch 52 is attached to the outer side of the flange 12, locking is achieved; when the cover 1 is detached from the main body 10, the latch 52 is disengaged from the rib 12 by rotating the latch 52, the latch 52 releases the latch 51, the latch 51 releases the two connecting plates, and the opening is enlarged.

One end of the adjusting plate 2 detachably connected with the cover body 1 is provided with a ruler plate 61, and the ruler plate 61 is provided with scales for indicating the rotation angle of the adjusting plate 2. In the present embodiment, the ruler plate 61 is fixedly connected with the adjusting plate 2.

The ruler board 61 is detachably connected with the cover body 1. Specifically, a plurality of grooves have been seted up on the chi board 61, and the rear end of the cover body 1 is provided with chucking slider 62, is provided with the arch on the chucking slider 62, and the arch can be with recess selectivity joint, and the arch can block into any in a plurality of grooves promptly. When the protrusions are engaged with different grooves, the adjusting plate 2 is at different angles.

A spring 63 is arranged between the clamping slide block 62 and the cover body 1, when the clamping slide block 62 is pressed, the spring 63 is compressed, the bulge is separated from the groove, and the adjusting plate 2 can be rotated; when the adjusting plate 2 rotates to a proper position, the clamping slide block 62 is loosened, and the protrusion is clamped with the corresponding groove under the action of the elastic restoring force of the spring 63.

Referring to fig. 5 and 6, when the projection is disengaged from the groove, the adjusting plate 2 may be rotated such that the adjusting plate 2 leaves the mounting and dismounting positions of the slices 20, facilitating the replacement of the slices 20. Along with regulating plate 2 rotates, install saw cutting indicator 4 on regulating plate 2 and get into opening 11, opening 11 provides dodge space for saw cutting indicator 4 for regulating plate 2 can rotate great angle, and can not interfere with the cover body 1.

The cover body 1 is provided with an air duct 13, the air duct 13 is communicated with the notch, and the air duct 13 extends along the tangential direction of the slice 20. Dust particles generated during the operation of the slicing sheet 20 can be sucked away by the dust suction device through the air duct 13, the tangential direction of the air duct 13 along the slicing sheet 20 is similar to the movement direction of the dust particles, and the working position is close to, so that the dust can be effectively and quickly sucked away. An opening 11 is provided between the air duct 13 and the sawing indicator 4 to prevent the air duct 13 from interfering with the rotation of the adjustment plate 2.

The maximum rotation angle of the adjusting plate 2 relative to the bottom surface of the cover body 1 is more than 120 degrees and can be equal to 180 degrees, the mounting and dismounting positions of the slicing piece 20 are completely avoided, and the maintenance and the replacement of the slicing piece 20 are not interfered. In fig. 5, the angle between the adjustment plate 2 and the housing 1 is denoted by a.

Example two

Fig. 7 and 8 show a second embodiment, wherein the same or corresponding parts as the first embodiment are provided with the same reference numerals as the first embodiment. For the sake of simplicity, only the differences between the second embodiment and the first embodiment will be described. The difference lies in that ruler board 61 rotates with adjusting plate 2 and is connected, and after adjusting plate 2 rotated and opened certain angle, ruler board 61 can rotate for adjusting plate 2, vacates bigger space to the installation is dismantled section 20 in order to be convenient for.

The ruler plate 61 can rotate clockwise or counterclockwise relative to the adjusting plate 2, so that the angle of the ruler plate 61 relative to the bottom surface of the cover 1 can be adjusted to at least 180 degrees, which is not limited herein. The maximum rotation angle of the blade 61 may be 90 °, which is not limited herein.

EXAMPLE III

Fig. 9 and 10 show a third embodiment, wherein the same or corresponding parts as the first embodiment are provided with the same reference numerals as the first embodiment. For the sake of simplicity, only the points of difference between the third embodiment and the first embodiment will be described. The adjustable cover is characterized in that the end part of the adjusting plate 2 is provided with a lock pin 21, the bracket 3 is provided with a containing groove 31, when the included angle between the adjusting plate 2 and the bottom surface of the cover body 1 is smaller than a set angle, the lock pin 21 is positioned in the containing groove 31, and when the included angle between the adjusting plate 2 and the bottom surface of the cover body 1 is equal to the set angle, the lock pin 21 can move out along the opening direction of the containing groove 31, so that the lock pin 21 can be detachably connected with the containing groove 31. And then make regulating plate 2 not only can rotate and open certain angle, can also dismantle from the cover body 1, the more be convenient for change section 20.

When the ruler plate 61 is locked with the clamping slide block 62 on the cover body 1, the lock pin 21 is positioned in the accommodating groove 31, and as one end of the adjusting plate 2 is locked through the ruler plate 61, the accommodating groove 31 applies clamping force to the lock pin 21, so that two ends of the adjusting plate 2 are locked; when the ruler plate 61 is separated from the clamping slide block 62 on the cover body 1, the adjusting plate 2 is rotated, the lock pin 21 rotates in the accommodating groove 31, when the included angle between the adjusting plate 2 and the bottom surface of the cover body 1 is smaller than a set angle, the force applied by the adjusting plate 2 to the lock pin 21 enables the lock pin 21 to abut against the inner wall of the accommodating groove 31, and the lock pin 21 is rotatably connected with the accommodating groove 31; when the rotation angle of the adjusting plate 2 reaches the set angle, the adjusting plate 2 and the lock pin 21 can move out along the opening direction of the accommodating groove 31, thereby realizing the detachment between the adjusting plate 2 and the cover body 1.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A dust collection shroud for an angle grinder, comprising:

the mask comprises a mask body (1), wherein one side of the mask body (1) is provided with a notch for extending a slice (20);

the adjusting plate (2) is arranged at the notch, one end of the adjusting plate (2) is rotatably connected with the front end of the cover body (1), the other end of the adjusting plate is detachably connected with the cover body (1), and an included angle between the adjusting plate (2) and the bottom surface of the cover body (1) is adjustable;

an opening portion (11) provided at a front end of the cover body (1) and configured to accommodate the one end of the adjustment plate (2) when the adjustment plate (2) rotates relative to the cover body (1), so that an included angle between the adjustment plate (2) and a bottom surface of the cover body (1) can be adjusted to at least 90 degrees.

2. The dust collecting hood of the angle grinder of claim 1, wherein the front end of the housing (1) is provided with a bracket (3), the adjusting plate (2) is rotatably connected with the bracket (3), and the bracket (3) is provided with the opening (11).

3. The dust collecting hood of the angle grinder as claimed in claim 2, wherein the adjusting plate (2) is provided with a lock pin (21) at an end thereof, the bracket (3) is provided with a receiving groove (31), and when an included angle between the adjusting plate (2) and the bottom surface of the housing (1) is smaller than a set angle, the lock pin (21) is located in the receiving groove (31); when the included angle between the adjusting plate (2) and the bottom surface of the cover body (1) is equal to a set angle, the lock pin (21) can move out along the opening direction of the accommodating groove (31).

4. The dust collecting hood of the angle grinder of claim 1, wherein the adjusting plate (2) is rotatably connected to the cover body (1) at one end thereof with a saw cutting indicator (4), and the opening (11) provides an avoiding space for the saw cutting indicator (4) after the adjusting plate (2) rotates relative to the cover body (1).

5. Dust collecting hood of angle grinder according to claim 1, characterized in that the maximum rotation angle of the adjusting plate (2) relative to the bottom surface of the housing (1) is more than 120 °.

6. The dust collecting shield of the angle grinder of claim 1, wherein a ruler plate (61) is arranged at one end of the adjusting plate (2) detachably connected with the cover body (1), a plurality of grooves are formed in the ruler plate (61), a clamping slide block (62) is arranged at the rear end of the cover body (1), and a protrusion is arranged on the clamping slide block (62) and can be selectively clamped with the grooves.

7. Dust collecting hood of the angle grinder according to claim 6, characterized in that the ruler plate (61) is rotatably connected with the adjusting plate (2).

8. The dust collecting shield of the angle grinder of any one of claims 1 to 7, wherein a mounting hole is formed in the cover body (1), a rib (12) is annularly arranged around the periphery of the mounting hole, an opening is formed in the rib (12), a quick-release structure is arranged at the opening and comprises a lock rod (51) and a lock catch (52), connecting plates are arranged on two sides of the opening, the lock rod (51) penetrates through the connecting plates, the lock catch (52) is connected with one end of the lock rod (51), the lock rod (51) can be tensioned by rotating the lock catch (52), and then two connecting plates are tensioned, so that the opening is reduced, and the lock catch (52) is attached to the outer side of the rib (12) to realize locking.

9. The dust collecting hood of the angle grinder of any one of claims 1 to 7, wherein the hood (1) is provided with an air duct (13), the air duct (13) is communicated with the gap, and the air duct (13) extends along a tangential direction of the slice (20).

10. An angle grinder comprising the dust collecting hood of the angle grinder of any one of claims 1 to 9, further comprising:

a main body (10);

a motor disposed inside the main body (10);

an attachment mounting device provided at a front end of the main body (10) and for detachably mounting the slice (20).