Angle grinder

Abstract

The present application relates to a kind of angle grinder, including shell, drive assembly housed in shell, control assembly connected to drive assembly and dust collection assembly arranged in shell, shell includes the air inlet of suction cooling airflow and the mesh cover installed in air inlet, control assembly includes the controller of start-stop drive assembly, dust collection assembly is arranged between controller and mesh cover;Its characterized in that: dust collection assembly includes the shell plate arranged in shell, cleaning piece slidably installed in shell plate and operating lever connected to cleaning piece, operating lever has the first position of restricting the movement of cleaning piece and the second position of not limiting the movement of cleaning piece, in the first position, operating lever is connected to shell, in the second position, operating lever and shell are separated.

Description

Technical Field

[0001] This invention relates to the field of power tool technology, and in particular to an angle grinder with an improved dust collection device. Background Technology

[0002] When an angle grinder grinds metal workpieces, the motor generates a significant amount of heat during operation, which is dissipated by drawing in outside air through a fan. However, the grinding process also produces a large amount of metal dust. Therefore, during operation, the outside air used for cooling can carry this dust into the machine. This dust is absorbed onto the rotor and stator through air gaps and housing gaps. When the dust accumulates to a certain level, it causes wear on the rotor and stator, ultimately damaging the motor. Currently, the conventional dust prevention method involves installing a filter screen at the air inlet of the angle grinder. As cooling air flows through the filter, it intercepts metal dust to prevent it from entering the machine. However, the dust prevention effect of current filters is not entirely satisfactory.

[0003] For improvements to dust prevention in angle grinders, refer to Chinese Invention Patent No. 201720637378.1, published on October 19, 2018. This patent discloses an air inlet filtration mechanism for an angle grinder: a strong magnet is installed at the air inlet, a grille is installed at the inlet cavity, and a strong magnetic strip is installed on the clearance cavity of the strong magnet. The grille and the strong magnetic strip work together to prevent large dust particles from entering the housing. A cyclone filter inside the housing filters small dust particles. This structure can adsorb dust in the cooling airflow to a certain extent, but its structure is relatively complex and occupies a large space. Furthermore, the collected dust can only be discharged when the strong magnet and cyclone filter are disassembled, making dust cleaning difficult and resulting in a poor user experience.

[0004] Therefore, it is determined that it is necessary to provide an improved angle grinder to overcome the shortcomings of the prior art. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide an angle grinder with a dust collection device, which has the advantages of compact structure and easy dust cleaning.

[0006] The present invention solves the problems of the prior art by adopting the following technical solution: an angle grinder, comprising a housing, a drive assembly housed in the housing, a control assembly connected to the drive assembly, and a dust collection assembly disposed in the housing. The housing includes an air inlet for drawing in cooling airflow and a mesh cover installed in the air inlet. The control assembly includes a controller for starting and stopping the drive assembly. The dust collection assembly is disposed between the controller and the mesh cover. The dust collection assembly includes a shell plate disposed in the housing, a magnet fixed to the shell plate, a cleaning component slidably mounted on the shell plate, and an operating rod connected to the cleaning component. The operating rod has a first position that restricts the movement of the cleaning component and a second position that does not restrict the movement of the cleaning component. In the first position, the operating rod is engaged with the housing. In the second position, the operating rod is disengaged from the housing.

[0007] A further improvement is as follows: the shell plate has an accommodating cavity extending from the end, the magnet is installed in the accommodating cavity, and the magnet is facing the air inlet.

[0008] A further improvement is as follows: the shell plate includes a track cavity extending from the end and a boss disposed in the track cavity; the cleaning component includes a base plate, a connecting rod connected to the base plate and a slider protruding from the end of the connecting rod; the connecting rod drives the slider to move within the track cavity; and the slider abuts against the boss.

[0009] A further improvement is as follows: a cavity is formed at the end of the substrate, the operating lever has a lever and a spring for biasing the lever, the lever is housed in the cavity, and the spring is installed on the inner wall of the cavity.

[0010] A further improvement is that the end of the substrate facing away from the cavity is set in an arc shape.

[0011] A further improvement is as follows: the housing is provided with an opening penetrating the inner wall and a positioning rib protruding from the inner wall. The positioning rib is provided with a locking hole. The side wall of the cavity is provided with a through hole. The end of the lever protrudes with a locking rod. In the first position, the locking rod is inserted through the through hole and the locking hole, and the lever extends out of the opening.

[0012] A further improvement is as follows: a cutting tool is installed at the end of the connecting rod, and the connecting rod moves within the track cavity, causing the cutting tool to come into contact with the surface of the magnet.

[0013] A further improvement is as follows: the mesh cover has a first support column protruding from its end face, and the shell plate has a positioning hole through it, with the first support column inserted into the positioning hole.

[0014] A further improvement is as follows: the mesh cover includes a second support post spaced apart from the first support post, and the second support post is attached to the controller.

[0015] A further improvement is as follows: the mesh cover is equipped with a filter screen, which is installed between the first support column and the second support column.

[0016] Compared with existing technologies, this invention has the following advantages: A novel dust collection component is installed at the air inlet of the angle grinder to adsorb metal dust in the cooling airflow. Based on the existing angle grinder structure, the dust collection component is positioned between the controller and the mesh cover, with an opening in the cover, allowing the dust collection component to retract into the casing, resulting in a compact structure. The dust collection component can be switched between dust collection and dust removal modes via an operating lever, making dust cleaning very convenient and providing a good user experience. Specifically:

[0017] 1. The dust collection assembly is fixed between the housing and the controller by the support pillars on the mesh cover acting on the shell plate, making the dust collection assembly easy to disassemble and assemble.

[0018] 2. When the dust collection assembly is in dust collection mode, the locking lever in the operating rod can be engaged with the through hole in the cavity and the locking hole on the positioning rib to lock the cleaning part. And the magnet surface can be completely aligned with the air inlet to maximize the adsorption of metal dust in the cooling airflow.

[0019] 3. When the dust collection assembly is in dust collection mode, the lever in the operating lever is designed to protrude from the opening for easy use by the operator;

[0020] 4. When the angle grinder is in dust removal mode, disengage the lever from the locking hole and engage it with the through hole. Pulling the operating lever will move the cleaning parts together. At this time, the blade will act on the surface of the magnet to scrape off the metal dust and discharge it from the opening.

[0021] 5. In the dust collection assembly, the cleaning component has a slider that fits into the protrusion in the track cavity, thereby limiting the movement stroke of the tool and ensuring that the dust removal area of ​​the tool is not less than the surface area of ​​the magnet, thus achieving all-round dust removal without dead angles. Attached Figure Description

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0023] Figure 1 This is a three-dimensional schematic diagram of the angle grinder of the present invention;

[0024] Figure 2 for Figure 1 An enlarged view of part A of the angle grinder shown;

[0025] Figure 3 yes Figure 1 The diagram shows the internal structure of the angle grinder.

[0026] Figure 4yes Figure 3 The dust collection components and mesh cover shown Figure 1 The assembly diagram of the housing shown is shown.

[0027] Figure 5 yes Figure 4 An assembly diagram of the dust collection components, mesh cover, and housing from another perspective;

[0028] Figure 6 yes Figure 4 The diagram shows the structure of the dust collection assembly in the angle grinder.

[0029] Figure 7 yes Figure 6 A schematic diagram of the shell plate in the dust collection assembly is shown.

[0030] Figure 8 yes Figure 7 The diagram shows the structure of the track cavity in the shell plate.

[0031] Figure 9 yes Figure 6 A schematic diagram of the magnet structure in the dust collection assembly is shown.

[0032] Figure 10 yes Figure 6 The diagram shows the structure of the cleaning component in the dust collection assembly.

[0033] Figure 11 yes Figure 6 A schematic diagram of the operating lever in the dust collection assembly shown;

[0034] Figure 12 yes Figure 1 The diagram shows the structural design of one half of the housing in the angle grinder.

[0035] Figure 13 yes Figure 12 An enlarged view of part B in the casing shown;

[0036] Figure 14 yes Figure 10 The cleaning parts shown are Figure 8 The diagram shows the assembly of the track cavity.

[0037] Figure 15 yes Figure 11 The diagram shows the control lever in the first position.

[0038] Figure 16 yes Figure 15 The diagram shows the control lever in the second position. Detailed Implementation

[0039] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0040] Please see Figures 1 to 5 As shown, an embodiment of the present invention relates to an angle grinder 100, which includes a housing 1, a drive assembly 3 housed inside the housing 1, a control assembly 2 that drives the drive assembly 3, a pair of dust collection assemblies 4 fixedly installed between the housing 1 and the control assembly 2, and an output assembly 5 driven by the drive assembly 3. The housing 1 is composed of three parts: the main housing 11, the secondary housing 12, and the gearbox 13. The main housing 11 is the middle part of the housing 1. It is cylindrical in appearance. Its surface is constructed with gripping parts 111 and stop parts 112 of unequal diameter. The outer diameter of the gripping parts 111 is designed to be smaller than that of the stop parts 112. When the operator operates the angle grinder 100, he / she can grasp the gripping parts 111 with his / her hand and press the back of his / her hand against the stop parts 112 to prevent the machine from slipping and causing damage. The secondary housing 12 is composed of two identical half-shells spliced ​​together. Several protrusions are provided on its left end to fit with the groove opened on the right end of the main housing 11 and are fastened with bolts. The secondary housing 12 is not a uniform cylindrical shape, but is composed of a cover 121 and a handle 122. The cover 121 and the handle 122 are integrally formed.

[0041] A pair of symmetrical air inlets 123 extend through the front and rear ends of the cover 121. Correspondingly, each air inlet 123 is equipped with a mesh cover 14 and a filter screen 15. The air inlets 123 form approximately square recesses from the surface of the cover 121 towards its interior, with mounting holes at the four apex corners of the recesses. The mesh cover 14 includes a frame 141 with the same shape as the air inlets 123, and a first support column 142 and a second support column 143 extending rearward from the surface of the frame 141. The first support column 142 is located at the lower right corner of the frame 141, and three second support columns 143 are spaced apart at the other three apex corners of the frame 141. Both the ends of 142 and the second support column 143 are provided with buckles, and the diameter of the buckles is slightly larger than the diameter of the mounting hole on the air inlet 123. The shape of the filter screen 15 is the same as that of the air inlet 131 and the frame 141. It has holes with the same diameter as the mounting holes on the air inlet 123 at the four top corners. When installing the screen cover 14, the filter screen 14 can be laid in the recess of the air inlet 123 first, so that the holes on the filter screen 15 correspond to the mounting holes on the air inlet 131. Then, the first support column 142 and the second support column 143 are aligned and inserted. After the buckles pass through the mounting holes on the air inlet 123, the three are fixed, achieving the effect of simple assembly and easy disassembly.

[0042] Directly below the air inlet 123, the cover 121 has an opening 124 extending from left to right and penetrating through itself in the front-to-back direction. The opening 124 is generally in the shape of a slender arc. However, the height of the opening 124 in the vertical direction is not equal. On the left side, the opening 124 is formed as a square latch 124a, and on the right side, the opening 124 is formed as a narrow latch 124b. The height of the latch 124a in the vertical direction is greater than that of the latch 124b, and the two are connected to each other.

[0043] The gearbox 13 is connected to the left end of the main housing 11 by bolts, etc. The upper part of the gearbox is provided with an air outlet 131 that penetrates the housing. There are three rows of air outlets 131 from top to bottom, with two outlets in each row. A locking shaft 132 is provided at the left end of the gearbox 13. The locking shaft extends into the interior of the gearbox 13. A bearing cover 133 is also installed at the lower end of the gearbox 13.

[0044] The control component 2 is located inside the sub-housing 12. The control component 2 consists of a switch 21 and a controller 22. Specifically, a fulcrum is provided at the right end of the handle 122, and the switch 21 is formed as a trigger that can rotate up and down around the fulcrum. A signal switch is provided on the upper part of the switch 21 so that the switch 21 can touch the signal switch at the extreme position of rotation. The power cord is laid in the handle space above the switch 21. The controller 22 is installed inside the housing 121 and has a controller housing 221 that is engaged with the inner wall of the housing 121. The upper end of the controller housing 221 forms a folded edge 222, and a heat sink 23 is installed inside it.

[0045] The drive assembly 3 is divided into a motor unit 31 and a transmission unit (not shown). The motor unit 31 is built into the main housing 11. The motor unit 31 mainly includes a stator 311 and a rotor 312. The stator 311 is held in place by a rib on the outer periphery of the main housing 11. The rotor 312 passes through the interior of the stator 311 and is fixed by bearings at both ends. The bearing at the left end is located in the gearbox 13, and the bearing at the right end is fixed by a bearing chamber formed by a rib at the right end of the main housing 11. The left end of the rotor is also equipped with a fan 313 and an air guide shroud 314. The rotation of the fan 313 can draw air from outside the angle grinder 100 through the air inlet 1. 23 is adsorbed into the interior to dissipate heat from the control component 2 and the motor unit 31. During this process, the heat generated by the controller 22 is transferred to the heat sink 23 and carried away by the cooling air. Subsequently, the cooling air flows through the rotor 312 and the stator 311 and is discharged from the air outlet 131 under the guidance of the air guide shroud 314. The transmission unit includes a bevel gear, a helical gear and an output shaft. The bevel gear is located at the left end of the rotor 312 and is located in the gearbox 13. The lower end of the bevel gear meshes with the helical gear. The helical gear is hollow and has an output shaft passing through it. The upper and lower ends of the output shaft are fixed in the gearbox 13 by bearings. The output shaft and the helical gear can rotate together.

[0046] The lower end of the gearbox 13 is also fixed with an output assembly 5. Specifically, the output assembly 5 includes an accessory 51 and a protective cover 52. The accessory 51 can be a saw blade, a grinding disc, or a flap wheel, etc. The accessory 51 is fixed to the lower end of the output shaft by a pressure plate. If you want to replace the accessory, you can press the locking shaft 132 to move it down in the gearbox 13. When it reaches the helical gear, the helical gear and the output shaft cannot rotate. At this time, the operator can grab the grip part 111 with one hand and use a tool to remove the pressure plate with the other hand to remove the accessory 51. The outer end of the bearing cover 133 is also equipped with a protective cover 52. The protective cover 52 covers part of the accessory 51. When the angle grinder is running, the protective cover 52 can protect the operator from touching the end of the accessory 51 facing the grip part 111, thereby reducing the probability of the operator being injured.

[0047] Please see Figures 3 to 10 As shown, the dust collection assembly 4 consists of a shell plate 41, a magnet 42, a cleaning component 43, and an operating lever 44. The dust collection assembly 4 is described below: The shell plate 41 is formed as a cuboid device, with four shell plate end faces 411 defined. The upper and lower ends of the shell plate 41 are the first end face 411a and the second end face 411b, respectively, and the left and right ends are the third end face 411c and the fourth end face 411d, respectively. The shell plate 41 has a port 412 on the first end face 411a. The port 412 is confined within the first end face 411a and is elongated. Based on this, the port 412 extends downward to form a receiving cavity 413. The lower end of the receiving cavity 413 abuts against a positioning plate 414. The thickness of the positioning plate 414 in the front-rear direction is greater than the depth of the receiving cavity 413 in the front-rear direction. The positioning plate 414 has a positioning hole 415 penetrating near its right end. The shell plate 41 extends from the second end face 411b... A pair of track cavities 416 extend upward along the third end face 411c and the fourth end face 411d. The track cavities 416 are located in front of the positioning plate 414. Specifically, the track cavities 416 define the first track 416b and the second track 416d respectively through the first track wall 416a and the second track wall 416c. The width of the first track wall 416a in the left-right direction is greater than that of the second track wall 416c, and the width of the first track 416b in the left-right direction is less than that of the second track 416d. Furthermore, the sum of the widths of the first (second) track wall 416a(c) and the first (second) track 416b(d) in the left-right direction is equal to that of the track cavity 416. It is worth noting that the first track wall 416a and the second track wall 416c are integrally formed. Since the width of the first track wall 416a is greater than that of the second track wall 416b, a boss 417 is formed at the connection between the two.

[0048] The magnet 42 is formed in the shape of a square plate, and is defined as having a first magnet end 421 at the upper end and a second magnet end 422 at the lower end. When the magnet 42 is installed into the receiving cavity 413, the second magnet end 422 can be aligned with the receiving cavity 413 and inserted first. Then, the first magnet end 421 is pressed to move the magnet down along the end wall of the receiving cavity 413 until the second magnet end 422 reaches the upper end of the positioning plate 414. After installation, the surface of the magnet 42 is flush with the surface of the positioning plate 414. This ensures the working space of the cleaning component 43, and the cleaning component 43 can accurately contact the surface of the magnet 42.

[0049] The cleaning component 43 has a substrate 431 at its lower end, defining a first end 431a and a second end 431b of the substrate. From the first end 431a to the second end 431b, the cleaning component has a protrusion 432 formed as a thin-walled cuboid. The lower end face of the protrusion 432 is square, adapted to fit the latch 124a. The second end 431b is a narrow curved surface adapted to fit the slot 124b. This allows the cleaning component 42 to freely extend and retract between the inside and outside of the cover 121. The protrusion 432 has a cavity 433 inside, with the side closer to the substrate 431 defined as the first end 433a and the side farther from the substrate 431 as the second end 433b. The second end 433b has a through hole 434. It is worth noting that the first end 433a and the second end 433b... The second end 433b of the cavity is not a surface, but an end wall with a certain thickness. Furthermore, holes or slots can be provided on the left and right sides of the first end 431a of the substrate, and the connecting rod 435 is fixed therein. The width of the connecting rod 435 in the left and right direction is equal to that of the first track 416b. A slider 436 is integrally installed on the upper end of the connecting rod 435, and the slider 436 extends away from the connecting rod 435. Furthermore, a slender groove can be opened on the inner side of the connecting rod 435. Inserts can be installed on the left and right ends of the tool 437. The inserts are inserted into the grooves, and the tool 437 can be installed between the connecting rods 435. The upper surface of the tool 437 is defined as the first end 437a of the tool, and the lower surface of the tool 437 is defined as the second end 437b of the tool. The first end 437a of the tool is a smooth strip, and the second end 437b of the tool is a cutting edge.

[0050] When the cleaning component 43 is installed onto the shell plate 41, the cutter 437 can be fixed to the left connecting rod 435 first. Then, the slider 436 is positioned against the left boss 417 along the track cavity 416. At this time, the slider 436 on the right connecting rod 435 is then positioned against the boss 417, and the angle is adjusted so that the right connecting rod 435 is aligned with the right end of the cutter 437. At this time, the connecting rod 435 can slide in the track cavity 416. Then, the first end 432a of the substrate is aligned with the lower end of the connecting rod 435 and pressed.

[0051] The operating lever 44 consists of a lever 441 and a locking lever 442. Specifically, the lever 441 is a cuboid, and the square area formed by its lower end is smaller than the square area formed by the lower end face of the cavity 433. The upper end of the lever 441 is integrally fixed with the locking lever 442, which extends to the left. When the operating lever 44 is installed into the cavity 433, a spring 443 can be connected to the right end of the lever 441, and the other end of the spring 433 is connected to the first end 433a of the cavity.

[0052] Furthermore, with Figures 1 to 5 Taking the dust collection assembly 4 on the front side of the angle grinder 100 as an example, and combining it with... Figures 6 to 11 The installation of the dust collection assembly 4 is described as follows: Install the filter screen 15 and the mesh cover 14 to the half of the sub-housing 12, and insert the first support 142 into the positioning hole 415. It should be noted that while inserting the first support 142 into the positioning hole 415, the second support 143a needs to be manually bent outward to fit against the fourth end face 411d of the housing plate 41, and the second support 143b and the second support 143c need to fit against the third end face 411c. At this time, the dust collection assembly is fixed to the cover 121 under the action of the first support 142 and the second support 143. Then, the half of the sub-housing 12 is spliced ​​along the rear end of the main housing 11. After the splicing is completed, the second support 143a and the second support 143b will abut against the folded edge 222 of the controller housing, and the dust collection assembly 4 is installed between the sub-housing 12 and the controller housing 221. The dust collection assembly 4 can also be easily removed during subsequent disassembly.

[0053] Next, the operation of the dust collection assembly 4 will be described. Since the cleaning component 43 needs to be locked and released in the housing 41 via the operating lever 44, a locking mechanism is required. Please refer to [link to relevant documentation]. Figure 12 and Figure 13 At the left end of the cover 121, that is, on the side of the cover 121 close to the main housing 11, a rib is selected as a positioning rib 125. The positioning rib 125 is not fixed and its position can be adjusted according to the installation of the dust collection assembly 4. Furthermore, a locking hole 126 is machined on the positioning rib 125. The locking hole 126 is the locking mechanism. After the dust collection assembly 4 is installed, the position of the positioning hole 126 coincides with the through hole 434 of the second end 433b of the cavity.

[0054] Please see Figures 14 to 16As shown, the dust collection component 4 has two states: a dust collection mode and a dust removal mode. The dust collection mode operates when the angle grinder 100 is working, and the dust removal mode can be started when the angle grinder 100 is stopped. Specifically, when the angle grinder 100 is in the dust collection mode, cooling air is drawn in from the air inlet 123 and comes into contact with the magnet 42, and the metal dust mixed in is adsorbed onto the magnet 42. At this time, the cutter 437 is in the first state, that is, the first end 437a of the cutter is located at the uppermost end of the shell plate 41. When the operating lever 44 is in the first position, that is, the through hole 434 coincides with the locking hole 126. Here, coincidence means that the projections of the through hole 434 and the locking hole 126 on the first end 433a of the cavity coincide. Furthermore, the locking lever 442 is inserted into the through hole 434 and the locking hole 126, and the lever 441 abuts against the second end 433b of the cavity. Only the lower end of the lever 441 protrudes from the latch 124a. Even if the operator applies force to the lever 441, the cleaning part 43 cannot be moved within the track cavity 416.

[0055] After the angle grinder 100 has been working for a period of time, the amount of dust adsorbed on the surface of the magnet 42 will accumulate to a certain extent, at which point the angle grinder 100 can be stopped and the dust removal mode can be started. Specifically, the operator can manually move the lever 441 to the right, which will cause the locking lever 442 to disengage from the locking hole 126. When the spring 443 is deformed to its limit position, the locking lever 442 can be engaged with the through hole 434. At this time, the operating lever 44 is in the second position. Pull the lever 441 down, and the base plate 431 will be exposed from the slot 124b. The slider 436 will slide on the second track 416d, and the second end 437b of the cutter can move downward against the surface of the magnet 42 and scrape off the metal dust. The cleaning process is the second state of the cutter. When the slider 436 reaches the boss 417, the cutter 437 is in the third state, that is, the cutter 437 has completed one cleaning. Repeat the above operation to remove all the dust from the magnet 42 and discharge it from the opening 124.

[0056] This invention is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many alternative solutions to the angle grinder of this invention exist without departing from the principles and scope of the invention. The scope of protection of this invention is defined by the claims.

Claims

1. An angle grinder, comprising a housing, a drive assembly housed within the housing, a control assembly connected to the drive assembly, and a dust collection assembly disposed within the housing, the housing including an air inlet for drawing in cooling airflow and a mesh cover installed at the air inlet, the control assembly including a controller for starting and stopping the drive assembly, and the dust collection assembly disposed between the controller and the mesh cover; characterized in that: The dust collection assembly includes a shell plate disposed on the housing, a magnet fixed to the shell plate, a cleaning component slidably mounted on the shell plate, and an operating rod connected to the cleaning component. The magnet is used to adsorb dust entrained in the cooling airflow. The housing has an opening penetrating the inner wall. The operating rod includes a lever and a locking lever connected to the upper end of the lever. The housing has a positioning rib protruding from the inner wall, and the positioning rib has a locking hole. The operating rod has a first position that restricts the movement of the cleaning component and a second position that does not restrict the movement of the cleaning component. In the first position, the locking lever is inserted into the locking hole, and the lower end of the lever protrudes from the opening. In the second position, the locking lever disengages from the locking hole and drives the cleaning component to move on the surface of the magnet, so that the dust is discharged from the opening.

2. The angle grinder according to claim 1, characterized in that: The shell plate has a receiving cavity extending from the end, and the magnet is installed in the receiving cavity, with the magnet facing the air inlet.

3. The angle grinder according to claim 2, characterized in that: The shell plate includes a track cavity extending from the end and a boss disposed in the track cavity. The cleaning component includes a base plate, a connecting rod connected to the base plate, and a slider protruding from the end of the connecting rod. The connecting rod drives the slider to move within the track cavity, and the slider abuts against the boss.

4. The angle grinder according to claim 3, characterized in that: A cavity is formed at the end of the substrate, the operating lever has a spring that biases the lever, the lever is housed in the cavity, and the spring is mounted on the inner wall of the cavity.

5. The angle grinder according to claim 4, characterized in that: The end of the substrate facing away from the cavity is configured as an arc shape.

6. The angle grinder according to claim 5, characterized in that: The cavity has a through hole in its sidewall, and in the first position, the locking rod is inserted through the through hole and the locking hole.

7. The angle grinder according to claim 5, characterized in that: A cutting tool is installed at the end of the connecting rod. The connecting rod moves within the track cavity, causing the cutting tool to come into contact with the surface of the magnet.

8. The angle grinder according to claim 1, characterized in that: The mesh cover has a first support column protruding from its end face, and the shell plate has a positioning hole through which the first support column is inserted.

9. The angle grinder according to claim 8, characterized in that: The mesh cover includes a second support post spaced apart from the first support post, and the second support post is attached to the controller.

10. The angle grinder according to claim 9, characterized in that: The mesh cover is equipped with a filter screen, which is installed between the first support column and the second support column.

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