Straight-handle electric grinder with dust collection module

Abstract

The invention relates to the technical field of electric grinders, and discloses a straight-handle electric grinder with a dust collection module, the straight-handle electric grinder with the dust collection module comprises an electric grinding pen upper cover, an electric grinding pen lower cover is attached to the electric grinding pen upper cover, and the straight-handle electric grinder further comprises a grinding assembly. According to the straight-shank electric grinder with the dust collection module, in order to better dissipate heat during better grinding, a grinding assembly is arranged, a matched circuit board, an interlayer baffle, an electric grinding pen battery, an electric grinding pen motor, a switch button, a gear speed regulation indicator lamp and a charging cover are arranged, so that a transmission shaft rotates, and therefore better grinding can be conducted in cooperation with a chuck screw and a chuck nut; by arranging the heat dissipation assembly, when the transmission shaft rotates to drive the cooling fan to rotate, the cooling fan is matched with the partition plate, the filter disc, the electric grinding pen front cover, the dust inlet, the clamping block, the clamping groove and the air inlet, so that external air enters the electric grinder and is discharged from the first air outlet, the second air outlet and the tail cover, and air circulation can be better formed for heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of electric grinders, in particular to a straight-handled electric grinder with a dust collection module. Background Art

[0002] In the field of electric grinders, traditional straight-shank electric grinders usually only have the basic function of grinding. With the development of technology and the improvement of user needs, users have higher requirements for the functional diversity, ease of use and operating comfort of electric grinders.

[0003] Since the electric grinder is equipped with an electric grinder pen battery and a dust suction module battery, heat will be generated during continuous use. If the heat is not dissipated in time and effectively, the use of the electric grinder body will be affected. The current straight-shank electric grinder lacks an effective heat dissipation mechanism, and in actual use, dust or fine dust will be generated. The current straight-shank electric grinder lacks an easy-to-install dust suction mechanism, which causes dust to float in the working environment, affecting efficiency and user health. In addition, the outer casing of the straight-shank electric grinder is often installed by screws and other fixings, and the outer casing cannot be divided into multiple small outer casings for convenient disassembly and assembly for card connection. The practicality needs to be improved.

[0004] In view of this, we propose a straight-shank electric grinder with a dust suction module. Summary of the invention

[0005] The object of the present invention is to provide a straight-shank electric grinder with a dust collection module to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A straight handle electric grinder with a dust suction module comprises an electric grinder pen upper cover, an electric grinder pen lower cover is attached to the electric grinder pen upper cover, and further comprises:

[0008] A grinding assembly, wherein the upper cover of the electric grinder is provided with a grinding assembly, the grinding assembly includes a circuit board, a circuit board is fixedly installed on the inner wall of the upper cover of the electric grinder, a partition baffle is fixedly installed on the inner wall of the lower cover of the electric grinder, an electric grinder battery is clamped on the lower cover of the electric grinder, an electric grinder motor is fixedly installed on the inner wall of the upper cover of the electric grinder, a switch button and a charging cover are arranged on the side wall of the upper cover of the electric grinder, a gear speed control indicator light is arranged on the electric grinder motor, a transmission shaft is fixedly installed on the output end of the electric grinder motor, a chuck screw is fixedly installed on the transmission shaft, and a chuck nut is threadedly installed on the chuck screw;

[0009] The heat dissipation component is provided on the lower cover of the electric grinder pen, and the heat dissipation component includes a partition, a partition is fixedly installed on one end of the electric grinder pen upper cover away from the interlayer baffle, a filter is fixedly installed on the partition, the chuck screw passes through the partition and the center of the filter, and the electric grinder pen front cover is jointly sleeved on one end of the electric grinder pen upper cover and the electric grinder pen lower cover close to the chuck nut, and a through dust inlet is provided on the electric grinder pen front cover, and a clamping block is fixedly installed on one end of the electric grinder pen upper cover and the electric grinder pen lower cover close to the chuck nut, a clamping slot is provided on the arc side wall of the electric grinder pen front cover, and the clamping block is clamped in the inside of the clamping slot, and a cooling fan is fixedly installed on the arc outer wall of the transmission shaft, and a through air inlet, a first air outlet and a second air outlet are provided on the arc side walls of the electric grinder pen upper cover and the electric grinder pen lower cover, the air inlet and the cooling fan are in the same vertical plane, and the electric grinder pen upper cover and the electric grinder pen lower cover are jointly sleeved on one end away from the chuck nut

[0010] Preferably, a grinding head is arranged between the chuck nut and the front cover of the electric grinder.

[0011] Preferably, the first air outlet is located outside the electric grinder motor, and the second air outlet is located at an end of the electric grinder upper cover away from the chuck nut, so as to better form air circulation between the electric grinder upper cover and the electric grinder lower cover.

[0012] Preferably, a dust suction assembly is provided at one end of the electric grinder pen upper cover away from the electric grinder pen front cover, and the dust suction assembly includes a dust collecting shell, and one end of the electric grinder pen upper cover and the electric grinder pen lower cover away from the chuck nut are jointly sleeved with one end of the dust collecting shell, and the other end of the dust collecting shell is sleeved with one end of the dust suction module upper cover and the dust suction module lower cover, the dust suction module upper cover and the dust suction module lower cover are fitted to each other, and the other ends of the two are jointly sleeved with the dust suction module back cover, and blocks are fixedly installed at both ends of the dust suction module upper cover and the dust suction module lower cover, and card slots are also provided on the dust collecting shell and the dust suction module back cover.

[0013] Preferably, a dust collection module battery and a dust collection module motor are fixedly mounted on the inner wall of the dust collection module upper cover, and a dust collection fan is fixedly mounted on the output end of the dust collection module motor.

[0014] Preferably, a strip air duct is provided on the upper cover and the lower cover of the electric grinder pen, an L-shaped air duct is provided on the dust collecting shell, the strip air duct and the L-shaped air duct are internally connected, two groups of the strip air duct and the L-shaped air duct are provided, and a filter element is fixedly installed on the inner wall of one end of the upper cover of the dust collection module close to the upper cover of the electric grinder pen.

[0015] Preferably, the filter elements are provided in multiple groups so as to better collect impurities generated during the grinding process.

[0016] Preferably, an auxiliary component is provided on the outside of the circuit board, and the auxiliary component includes a limit switch base, and the limit switch base is fixedly installed inside one end of the upper cover of the electric grinder pen close to the interlayer baffle, one end of the return spring is fixedly connected to the limit switch base, and a limit button is fixedly installed on the other end of the return spring, and a ramp block is fixedly installed on the limit button, and ramp grooves are provided on the tail cover and the dust collecting shell, and the ramp block is clamped in the ramp groove, so that the tail cover and the dust collecting shell can be disassembled and assembled more conveniently, and the two have good interchangeability.

[0017] Preferably, positioning grooves are provided on the upper cover of the electric grinder pen and the lower cover of the dust collection module, and positioning pins are fixedly installed on the lower cover of the electric grinder pen and the upper cover of the dust collection module. There are multiple groups of positioning pins and positioning grooves, and the positioning pins fit inside the positioning grooves, which is convenient for installing the upper cover and the lower cover of the electric grinder pen, as well as the lower cover and the upper cover of the dust collection module.

[0018] Preferably, a stop pin is sleeved inside one end of the upper cover of the electric grinder pen close to the front cover of the electric grinder pen, the outer end of a positioning bearing is fixedly installed on the inner wall of the upper cover of the electric grinder pen, and the inner end of the positioning bearing is fixedly installed on the outer wall of the transmission shaft, and the outer walls of one end of the upper cover of the electric grinder pen and the lower cover of the electric grinder pen close to the chuck nut are both provided with anti-slip protrusions, and the anti-slip protrusions are provided in multiple groups, which conforms to the holding and force habits, and the curves on the horizontal planes of the upper cover of the electric grinder pen and the lower cover of the electric grinder pen are gentle and smooth, making the hands more comfortable during the gripping process.

[0019] Compared with the prior art, the present invention provides a straight-shank electric grinder with a dust collection module, which has the following beneficial effects:

[0020] 1. The straight-handled electric grinder with a dust suction module, in order to better dissipate heat during grinding, is provided with a grinding component, in conjunction with a circuit board, a barrier baffle, an electric grinder battery, an electric grinder motor, a switch button, a gear speed control indicator light and a charging cover, so that the transmission shaft rotates, thereby cooperating with a chuck screw and a chuck nut to better perform grinding. By providing a heat dissipation component, when the transmission shaft rotates, the cooling fan is driven to rotate, thereby cooperating with the baffle, the filter, the front cover of the electric grinder, the dust inlet, the card block, the card slot and the air inlet, so that external air enters the interior of the electric grinder and is discharged from the first air outlet, the second air outlet and the tail cover, thereby better forming air circulation for heat dissipation.

[0021] 2. The straight-shank electric grinder with a dust suction module is provided with a dust suction assembly to facilitate the cleaning of impurities generated during the grinding process and achieve better heat dissipation effect. The tail cover is removed, and the dust collecting shell, the upper cover of the dust suction module, the lower cover of the dust suction module and the rear cover of the dust suction module are installed. When the dust suction module battery is started, the dust suction fan is rotated in conjunction with the dust suction module motor, so that the impurities generated during the grinding process near the chuck nut are sucked into the dust collecting shell through the L-shaped air duct, the strip air duct and the dust inlet in turn, and are intercepted by the filter element. The sucked airflow is discharged from the rear cover of the dust suction module, so that the impurities generated during the grinding process can be cleaned more conveniently and the dust suction module battery and the dust suction module motor can be cooled.

[0022] 3. The straight-handled electric grinder with a dust collection module is provided with auxiliary components to make the electric grinder body more practical, in conjunction with a limit switch base, a reset spring, a limit button, a ramp block and a ramp groove, so that the tail cover or the dust collection shell can be better installed on the upper cover and the lower cover of the electric grinder pen, and the upper cover and the lower cover of the electric grinder pen or the upper cover and the lower cover of the dust collection module can be better installed in conjunction with the positioning groove and the positioning pin.

[0023] 4. The straight-handled electric grinder with a dust suction module cooperates with a stop pin and a positioning bearing to make the rotation of the transmission shaft more stable, and cooperates with an anti-slip protrusion to make the hand more comfortable during the gripping process, thereby making the electric grinder body more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic top view of the overall structure of the present invention;

[0025] Figure 2 It is a side view schematic diagram of the upper cover of the electric grinder pen and the upper cover of the dust collection module of the present invention;

[0026] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0027] Figure 4 This is a schematic diagram of the lower cover of the electric grinder pen and some structural connections of the present invention;

[0028] Figure 5 It is a side view schematic diagram of the lower cover of the electric grinder pen and the lower cover of the dust collection module of the present invention;

[0029] Figure 6 It is a cross-sectional schematic diagram of the upper cover and some structures of the electric grinder pen of the present invention;

[0030] Figure 7 It is a schematic diagram of a partial structural cross-section explosion of the present invention;

[0031] Figure 8 It is a schematic diagram of the connection of the tail cover and some structures of the present invention;

[0032] Fig. 9 It is a schematic cross-sectional view of part of the structure of the present invention;

[0033] Fig.10 This is a schematic diagram of a biaxial explosion of a partial structure of the present invention;

[0034] Fig.11 This is a schematic diagram of the cross-section explosion of the rear cover of the dust collection module of the present invention;

[0035] Fig.12 It is a schematic diagram of a uniaxial explosion of part of the structure of the present invention.

[0036] In the figure: 1. Upper cover of electric grinder; 2. Lower cover of electric grinder; 3. Grinding assembly; 30. Circuit board; 31. Interlayer baffle; 32. Battery of electric grinder; 33. Motor of electric grinder; 34. Switch button; 35. Speed ​​indicator light; 36. Charging cover; 37. Drive shaft; 38. Chuck screw; 4. Heat dissipation assembly; 40. Baffle; 41. Filter; 42. Front cover of electric grinder; 43. Dust inlet; 44. Block; 45. Slot; 46. Cooling fan; 47. Air inlet; 48. First air outlet; 49. Second air outlet; 410. Tail cover; 5. Dust collection assembly; 51. Dust collecting shell; 52. Dust collection module upper cover; 53. Dust collection module lower cover; 54. Dust collection module back cover; 55. Dust collection module battery; 56. Dust collection module motor; 57. Dust collection fan; 58. Strip air duct; 59. L-shaped air duct; 510. Filter element; 6. Collet nut; 7. Auxiliary assembly; 71. Limit switch base; 72. Reset spring; 73. Limit button; 74. Inclined block; 75. Inclined groove; 76. Positioning groove; 77. Positioning pin; 78. Stop pin; 79. Positioning bearing; 710. Anti-slip protrusion. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the present application, the orientation or positional relationship indicated by the term "on" is based on the orientation or positional relationship shown in the accompanying drawings. It is mainly for the purpose of better describing the present application and its embodiments, and is not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, the term "on" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0039] See also Figure 1 - Fig.12 , the present invention provides a technical solution:

[0040] A straight handle electric grinder with a dust suction module comprises an electric grinder pen upper cover 1, and an electric grinder pen lower cover 2 is attached to the electric grinder pen upper cover 1.

[0041] In one embodiment of the present invention, a grinding assembly 3 is provided on the upper cover 1 of the electric grinder pen, and the grinding assembly 3 includes a circuit board 30. The circuit board 30 is fixedly installed on the inner wall of the upper cover 1 of the electric grinder pen, and a partition baffle 31 is fixedly installed on the inner wall of the lower cover 2 of the electric grinder pen. An electric grinder battery 32 is clamped on the lower cover 2 of the electric grinder pen, and an electric grinder motor 33 is fixedly installed on the inner wall of the upper cover 1 of the electric grinder pen. A switch button 34 and a charging cover 36 are provided on the side wall of the upper cover 1 of the electric grinder pen, and a gear speed control indicator light 35 is provided on the electric grinder motor 33. A transmission shaft 37 is fixedly installed on the output end of the electric grinder motor 33, and a chuck screw 38 is fixedly installed on the transmission shaft 37, and a chuck nut 6 is threadedly installed on the chuck screw 38.

[0042] When using this embodiment, the user presses the switch button 34, the electric grinder battery 32 supplies power to the electric grinder motor 33, and the circuit board 30 controls and coordinates the entire startup process. If the grinding speed needs to be adjusted, the switch button 34 can be continued to be pressed. At this time, the gear speed adjustment indicator light 35 will display the corresponding status according to the current gear setting. When the electric grinder battery 32 is low on power, the charging cover 36 can be opened to connect an external power supply to charge the electric grinder battery 32. When the electric grinder motor 33 is started, its output shaft drives the transmission shaft 37 to rotate at high speed, and cooperates with the chuck screw 38 to drive the chuck nut 6 to rotate synchronously, so that the grinding head can finally run at high speed to achieve the grinding operation of the workpiece.

[0043] In one embodiment of the present invention, a heat dissipation component 4 is arranged on the lower cover 2 of the electric grinder, and the heat dissipation component 4 includes a partition 40, and a partition 40 is fixedly installed at one end of the upper cover 1 of the electric grinder away from the interlayer baffle 31, and a filter 41 is fixedly installed on the partition 40, and a chuck screw 38 passes through the center of the partition 40 and the filter 41, and an electric grinder front cover 42 is jointly sleeved on one end of the upper cover 1 and the lower cover 2 of the electric grinder near the chuck nut 6. In addition, a grinding head is arranged between the chuck nut 6 and the front cover 42 of the electric grinder, and a dust inlet 43 is opened on the front cover 42 of the electric grinder, and a clamping block 44 is fixedly installed on one end of the upper cover 1 and the lower cover 2 of the electric grinder near the chuck nut 6, and the arc-shaped side wall of the front cover 42 of the electric grinder A card slot 45 is provided on the upper part, and a card block 44 is card-connected to the inside of the card slot 45. A cooling fan 46 is fixedly installed on the arc-shaped outer wall of the transmission shaft 37. A penetrating air inlet 47, a first air outlet 48 and a second air outlet 49 are provided on the arc-shaped side walls of the electric grinder upper cover 1 and the electric grinder lower cover 2. The air inlet 47 and the cooling fan 46 are in the same vertical plane. In addition, the first air outlet 48 is located outside the electric grinder motor 33, and the second air outlet 49 is located at the end of the electric grinder upper cover 1 away from the chuck nut 6, so as to better form the air circulation between the electric grinder upper cover 1 and the electric grinder lower cover 2. The ends of the electric grinder upper cover 1 and the electric grinder lower cover 2 away from the chuck nut 6 are jointly sleeved with a tail cover 410.

[0044] When the present embodiment is used, as the transmission shaft 37 rotates, the cooling fan 46 rotates together. The rotation of the cooling fan 46 promotes air flow. External air enters the space between the upper cover 1 and the lower cover 2 of the electric grinder from the air inlet 47 on the upper cover 1 and the lower cover 2 of the electric grinder, that is, enters the interior of the electric grinder body. During the internal flow, this part of air flows through the electric grinder motor 33 and the electric grinder battery 32, taking away the heat generated by them. Subsequently, the air carrying the heat is discharged from the first air outlet 48 and the second air outlet 49. The electric grinder body is discharged from the outlet 49 and the tail cover 410, and is naturally convected with the cold air outside or forcedly convected by the cooling fan 46 to complete the heat exchange, reduce the temperature of the electric grinder motor 33 and the electric grinder battery 32, and realize the heat dissipation function. After aligning the block 44 at one end of the electric grinder upper cover 1 and the electric grinder lower cover 2 close to the chuck nut 6 with the slot 45 provided on the electric grinder front cover 42, the electric grinder front cover 42 is rotated to make the block 44 completely fit into the slot 45, thereby completing the installation of the electric grinder front cover 42.

[0045] In one embodiment of the present invention, a dust collecting assembly 5 is provided at one end of the upper cover 1 of the electric grinder away from the front cover 42 of the electric grinder, and the dust collecting assembly 5 includes a dust collecting shell 51, and the upper cover 1 of the electric grinder and the lower cover 2 of the electric grinder away from the chuck nut 6 are jointly sleeved with one end of the dust collecting shell 51, and the other end of the dust collecting shell 51 is sleeved with one end of the upper cover 52 of the dust collecting module and the lower cover 53 of the dust collecting module, and the upper cover 52 of the dust collecting module and the lower cover 53 of the dust collecting module fit each other, and the other ends of the two are jointly sleeved with a dust collecting module rear cover 54, and the upper cover 52 of the dust collecting module and the lower cover 53 of the dust collecting module are also fixedly installed with a card block 44, and the upper and lower covers of the dust collecting shell 51 and the rear cover 54 of the dust collecting module are ... A card slot 45 is also provided. A dust collection module battery 55 and a dust collection module motor 56 are fixedly installed on the inner wall of the dust collection module upper cover 52. A dust collection fan 57 is fixedly installed on the output end of the dust collection module motor 56. In addition, a strip air duct 58 is provided on the electric grinder upper cover 1 and the electric grinder lower cover 2, and an L-shaped air duct 59 is provided on the dust collecting shell 51. The strip air duct 58 and the L-shaped air duct 59 are internally connected. Two groups of the strip air duct 58 and the L-shaped air duct 59 are arranged. A filter element 510 is fixedly installed on the inner wall of one end of the dust collection module upper cover 52 close to the electric grinder upper cover 1. Three groups of filter elements 510 are arranged to better collect impurities generated during the grinding process.

[0046] When the present embodiment is used, the tail cover 410 at one end of the upper cover 1 and the lower cover 2 of the electric grinder pen away from the chuck nut 6 is removed, and then the dust collecting shell 51, the upper cover 52 of the dust suction module, the lower cover 53 of the dust suction module and the rear cover 54 of the dust suction module are installed in sequence. The specific installation method is to sleeve one end of the dust collecting shell 51 on the end of the upper cover 1 and the lower cover 2 of the electric grinder pen away from the chuck nut 6, and then sleeve one end of the upper cover 52 and the lower cover 53 of the dust suction module on the other end of the dust collecting shell 51, and the upper cover 52 and the lower cover 53 of the dust suction module are fitted with each other, and finally the rear cover 54 of the dust suction module is sleeved on the other end of the upper cover 52 and the lower cover 53 of the dust suction module. During the installation process, the blocks 44 fixedly installed at both ends of the upper cover 52 and the lower cover 53 of the dust suction module are respectively engaged with the dust collecting shell 51 and the rear cover 54 of the dust suction module The card slots 45 opened on 54 correspond to and are carded to ensure that the components are firmly connected. After the installation is completed, the dust collection module battery 55 is started to power the dust collection module motor 56. After the dust collection module motor 56 is started, its output shaft drives the dust collection fan 57 to rotate at high speed. The rotation of the dust collection fan 57 forms a negative pressure, so that the impurities generated during the grinding process near the chuck nut 6 are sucked into the dust collecting shell 51 through the dust inlet 43, the strip air duct 58 and the L-shaped air duct 59 in sequence. Inside the dust collecting shell 51, the impurities are intercepted by the filter element 510, and the inhaled air flow is discharged from the dust collection module back cover 54. In this process, the airflow not only collects the impurities, but also dissipates heat for the dust collection module battery 55 and the dust collection module motor 56, because the airflow will take away part of the heat generated by them during the flow.

[0047] In one embodiment of the present invention, an auxiliary component 7 is provided on the outside of the circuit board 30, and the auxiliary component 7 includes a limit switch base 71, and a limit switch base 71 is fixedly installed inside one end of the upper cover 1 of the electric grinder pen close to the interlayer baffle 31, and one end of the return spring 72 is fixedly connected to the limit switch base 71, and a limit button 73 is fixedly installed on the other end of the return spring 72, and a ramp block 74 is fixedly installed on the limit button 73, and a ramp groove 75 is provided on the tail cover 410 and the dust collecting shell 51, and the ramp block 74 is clamped in the ramp groove 75, so that the tail cover 410 and the dust collecting shell 51 are more convenient to disassemble and assemble, and the two have good interchangeability. In addition, a positioning groove 76 is provided on the upper cover 1 of the electric grinder pen and the lower cover 53 of the dust collection module, and a positioning groove 76 is provided on the lower cover 2 of the electric grinder pen and the upper cover 52 of the dust collection module. There are locating pins 77, and six groups of locating pins 77 and locating grooves 76 are provided, and the locating pins 77 fit inside the locating grooves 76, which is convenient for installing the electric grinder pen upper cover 1 and the electric grinder pen lower cover 2, as well as convenient for installing the dust collection module lower cover 53 and the dust collection module upper cover 52. In addition, a stop pin 78 is sleeved inside the end of the electric grinder pen upper cover 1 close to the electric grinder pen front cover 42, and the outer end of the locating bearing 79 is fixedly installed on the inner wall of the electric grinder pen upper cover 1, and the inner end of the locating bearing 79 is fixedly installed on the outer wall of the transmission shaft 37. The outer walls of the electric grinder pen upper cover 1 and the electric grinder pen lower cover 2 close to the chuck nut 6 are both provided with anti-slip protrusions 710, and two groups of anti-slip protrusions 710 are provided, which conforms to the holding and force habits. The curves on the horizontal planes of the electric grinder pen upper cover 1 and the electric grinder pen lower cover 2 are gentle and smooth, making the hands more comfortable during the gripping process.

[0048] When the present embodiment is used, when it is necessary to install the tail cover 410 or the dust collecting shell 51, the user first presses the limit button 73. At this time, the limit button 73 interacts with the limit switch base 71, so that the return spring 72 is compressed and deformed. As the limit button 73 is pressed, the inclined surface block 74 moves synchronously. Then, the tail cover 410 or the dust collecting shell 51 is sleeved on the electric grinder pen upper cover 1 and the electric grinder pen lower cover 2, so that the inclined surface groove 75 is located outside the inclined surface block 74. After releasing the limit button 73, the return spring 72 recovers its deformation and pushes the inclined surface block 74 into the inclined surface groove 75, thereby completing the installation of the tail cover 410 or the dust collecting shell 51. This installation method makes the tail cover 410 and the dust collecting shell 51 have good interchangeability. At the same time, when installing the electric grinder pen upper cover 1 and the electric grinder pen lower cover 2, as well as the dust collection module upper cover 52 and When the dust module lower cover 53 is installed, the positioning grooves 76 opened on the electric grinder upper cover 1 and the dust module lower cover 53 are aligned with the positioning pins 77 installed on the electric grinder lower cover 2 and the dust module upper cover 52 respectively, and the positioning pins 77 are fitted into the positioning grooves 76. In this way, the installation of various components is completed conveniently and accurately to ensure the accuracy of the installation position. The stop pin 78 and the positioning bearing 79 work together to make the transmission shaft 37 more stable during rotation, reduce vibration and deviation, and improve the accuracy and effect of grinding. In addition, the anti-slip protrusion 710 conforms to the ergonomic grip and force habits, and the curves on the horizontal planes of the electric grinder upper cover 1 and the electric grinder lower cover 2 are gentle and smooth. These designs make the user more comfortable when grasping the electric grinder, reduce hand fatigue, and thus improve the practicality of the electric grinder body.

[0049] Among them, the circuit board 30, the electric grinder motor 33, the switch button 34 and the gear speed control indicator light 35 appearing in the present application document are all electrically connected to the electric grinder battery 32, and the dust collection module motor 56 is electrically connected to the dust collection module battery 55. The standard parts used in the present application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature rivets and welding in the prior art, and the machinery, parts and equipment are all conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0050] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A straight handle electric grinder with a dust collection module, comprising an electric grinder pen upper cover (1), an electric grinder pen lower cover (2) being attached to the electric grinder pen upper cover (1), characterized in that Also includes: A grinding assembly (3), wherein the grinding assembly (3) is arranged on the upper cover (1) of the electric grinder, and the grinding assembly (3) comprises a circuit board (30), the inner wall of the upper cover (1) of the electric grinder is fixedly mounted with the circuit board (30), the inner wall of the lower cover (2) of the electric grinder is fixedly mounted with a barrier baffle (31), the lower cover (2) of the electric grinder is clamped with an electric grinder battery (32), the inner wall of the upper cover (1) of the electric grinder is fixedly mounted with an electric grinder motor (33), the side wall of the upper cover (1) of the electric grinder is provided with a switch button (34) and a charging cover (36), the electric grinder motor (33) is provided with a gear speed control indicator light (35), the output end of the electric grinder motor (33) is fixedly mounted with a transmission shaft (37), the transmission shaft (37) is fixedly mounted with a chuck screw (38), and the chuck screw (38) is threadedly mounted with a chuck nut (6); A heat dissipation component (4), wherein the lower cover (2) of the electric grinder is provided with a heat dissipation component (4), wherein the heat dissipation component (4) comprises a partition (40), wherein the partition (40) is fixedly mounted on one end of the upper cover (1) of the electric grinder away from the interlayer baffle (31), wherein a filter (41) is fixedly mounted on the partition (40), wherein the chuck screw (38) passes through the center of the partition (40) and the filter (41), wherein the upper cover (1) of the electric grinder and the lower cover (2) of the electric grinder are jointly sleeved with an electric grinder front cover (42) at one end close to the chuck nut (6), wherein a dust inlet (43) is penetrated through the front cover (42), wherein the upper cover (1) of the electric grinder and the lower cover (2) of the electric grinder are provided with a dust inlet (43) penetrating therethrough, ... A clamping block (44) is fixedly mounted on one end of the nut (6); a clamping slot (45) is provided on the arc-shaped side wall of the electric grinder front cover (42); the clamping block (44) is clamped in the inside of the clamping slot (45); a cooling fan (46) is fixedly mounted on the arc-shaped outer wall of the transmission shaft (37); an air inlet (47), a first air outlet (48) and a second air outlet (49) are provided on the arc-shaped side walls of the electric grinder upper cover (1) and the electric grinder lower cover (2); the air inlet (47) and the cooling fan (46) are located in the same vertical plane; and a tail cover (410) is commonly sleeved on one end of the electric grinder upper cover (1) and the electric grinder lower cover (2) away from the chuck nut (6).

2. The straight-shank electric grinder with a dust collection module according to claim 1, characterized in that: A grinding head is arranged between the chuck nut (6) and the electric grinder front cover (42).

3. The straight-shank electric grinder with a dust collection module according to claim 1, characterized in that: The first air outlet (48) is located outside the electric grinder motor (33), and the second air outlet (49) is located at an end of the electric grinder upper cover (1) away from the chuck nut (6).

4. The straight-shank electric grinder with a dust collection module according to claim 1, characterized in that: A dust collecting assembly (5) is arranged at one end of the electric grinder pen upper cover (1) away from the electric grinder pen front cover (42), and the dust collecting assembly (5) comprises a dust collecting shell (51). One end of the electric grinder pen upper cover (1) and the electric grinder pen lower cover (2) away from the chuck nut (6) are jointly sleeved with one end of the dust collecting shell (51), and the other end of the dust collecting shell (51) is sleeved with one end of the dust collecting module upper cover (52) and the dust collecting module lower cover (53). The dust collecting module upper cover (52) and the dust collecting module lower cover (53) are fitted to each other, and the other ends of the two are jointly sleeved with the dust collecting module rear cover (54). Blocks (44) are also fixedly installed at both ends of the dust collecting module upper cover (52) and the dust collecting module lower cover (53), and a card slot (45) is also provided on the dust collecting shell (51) and the dust collecting module rear cover (54).

5. The straight-shank electric grinder with a dust collection module according to claim 4, characterized in that: A dust collection module battery (55) and a dust collection module motor (56) are fixedly mounted on the inner wall of the dust collection module upper cover (52), and a dust collection fan (57) is fixedly mounted on the output end of the dust collection module motor (56).

6. The straight-shank electric grinder with a dust collection module according to claim 5, characterized in that: The electric grinder pen upper cover (1) and the electric grinder pen lower cover (2) are both provided with a strip-shaped air duct (58), the dust collecting shell (51) is provided with an L-shaped air duct (59), the strip-shaped air duct (58) and the L-shaped air duct (59) are internally connected, and two groups of the strip-shaped air duct (58) and the L-shaped air duct (59) are provided, and a filter element (510) is fixedly installed on the inner wall of one end of the dust collection module upper cover (52) close to the electric grinder pen upper cover (1).

7. The straight-shank electric grinder with a dust collection module according to claim 6, characterized in that: The filter elements (510) are provided in multiple groups.

8. The straight-shank electric grinder with a dust collection module according to claim 1, characterized in that: An auxiliary component (7) is arranged outside the circuit board (30), and the auxiliary component (7) comprises a limit switch base (71); the limit switch base (71) is fixedly installed inside one end of the upper cover (1) of the electric grinder pen close to the interlayer baffle (31); one end of a return spring (72) is fixedly connected to the limit switch base (71); the other end of the return spring (72) is fixedly installed with a limit button (73); a slope block (74) is fixedly installed on the limit button (73); the tail cover (410) and the dust collecting shell (51) are both provided with a slope groove (75), and the slope block (74) is clamped inside the slope groove (75).

9. The straight-shank electric grinder with a dust collection module according to claim 8, characterized in that: The electric grinder pen upper cover (1) and the dust suction module lower cover (53) are both provided with positioning grooves (76), and the electric grinder pen lower cover (2) and the dust suction module upper cover (52) are both fixedly mounted with positioning pins (77), and the positioning pins (77) and positioning grooves (76) are provided in multiple groups, and the positioning pins (77) are fitted inside the positioning grooves (76).

10. The straight handle electric grinder with a dust collection module according to claim 9, characterized in that: A stop pin (78) is sleeved inside one end of the electric grinder upper cover (1) close to the electric grinder front cover (42), an outer end of a positioning bearing (79) is fixedly mounted on the inner wall of the electric grinder upper cover (1), and an inner end of the positioning bearing (79) is fixedly mounted on the outer wall of the transmission shaft (37), and an anti-skid protrusion (710) is arranged on the outer wall of one end of the electric grinder upper cover (1) and the electric grinder lower cover (2) close to the chuck nut (6), and a plurality of groups of the anti-skid protrusions (710) are arranged.

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