CN217529435U - Electric circular saw - Google Patents

Abstract

The utility model discloses an electric circular saw, which comprises a shell, a trigger, a toggle button, an electric saw switch, a micro switch, a controller and a lighting device, wherein an inner cavity is arranged inside the shell; the trigger is connected with the shell in a rotatable mode; the shifting button is arranged in the inner cavity, and part of the shifting button is arranged in the rotating range of the trigger; the electric saw switch is arranged in the inner cavity, and the input end of the electric saw switch is arranged in the rotation range of the trigger; the input end of the microswitch is abutted with the toggle button; the controller is respectively electrically connected with the micro switch and the electric saw switch; the lighting device is arranged on the shell and electrically connected with the controller, and the irradiation direction of the lighting device faces to the cutting position of the electric circular saw. The utility model discloses an electric circular saw can trigger electric saw switch and micro-gap switch simultaneously when detaining the trigger for in the saw bit moving, lighting device starts the illumination, improves the luminance of cutting position and then improves the precision, eliminates the potential safety hazard that the sight is not good to be produced.

Description

Electric circular saw

Technical Field

The utility model relates to an electric saw technical field especially relates to an electric circular saw.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

Present electric circular saw is in the cutting use, in order to prevent that the user is hindered to moving saw bit mistake, is equipped with the guard shield in the outside of saw bit usually, and saw bit and work piece contact position are sheltered from by the guard shield in cutting process, lead to electric circular saw cutting position's sight when cutting the work piece not good to influence the accuracy nature of user to the work piece cutting, and have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor sight of the electric circular saw when cutting at least. The purpose is realized by the following technical scheme:

the utility model provides an electric circular saw, electric circular saw includes:

a housing having an inner cavity therein;

a trigger rotatably connected to the housing;

the toggle button is arranged in the inner cavity, and part of the toggle button is arranged in the rotation range of the trigger;

the electric saw switch is arranged in the inner cavity, the input end of the electric saw switch is arranged in the rotation range of the trigger, and the electric saw switch is used for controlling the on-off of the electric circular saw;

the microswitch is arranged in the inner cavity, and the input end of the microswitch is abutted against the toggle button;

the controller is electrically connected with the micro switch and the electric saw switch respectively;

and the illuminating device is arranged on the shell and electrically connected with the controller, and the irradiation direction of the illuminating device faces to the cutting position of the electric circular saw.

According to the utility model discloses an electric circular saw adds on traditional electric circular saw's basis and establishes dial button, micro-gap switch and lighting assembly, triggers electric saw switch and micro-gap switch simultaneously when detaining the trigger of sending out for when the saw bit moving, lighting device starts the illumination, improves the luminance of cutting position, strengthens user's sight, and then improves the precision of electric circular saw cutting, eliminates the potential safety hazard that the sight is not good to produce.

In addition, according to the present invention, the electric circular saw may further have the following additional technical features:

the utility model discloses an in some embodiments, dial the button including piece, shift fork and kicking block that resets, the kicking block with micro-gap switch's input butt, the inside of kicking block is equipped with the through-hole, the shift fork is worn to establish in the through-hole, the shift fork is located part in the through-hole with the kicking block butt, the piece joint that resets is in the shell with between the one end of shift fork, the other end setting of shift fork is in the rotation range of trigger, the kicking block is in be close or keep away from under the effect of shift fork micro-gap switch.

In some embodiments of the present invention, the shifting fork is right the force application direction of the top block and the movement direction of the top block are set at an angle.

In some embodiments of the present invention, the lighting device comprises a LED lamp, the LED lamp is mounted on the housing, and the LED lamp is electrically connected to the controller.

In some embodiments of the present invention, the lighting device further includes a lamp cover, the lamp cover is transparent, and the lamp cover covers the LED lamp.

The utility model discloses an in some embodiments, be equipped with the light trough on the shell, the LED lamp is installed in the light trough, the lamp shade joint is in the light trough.

In some embodiments of the present invention, the electric circular saw further includes a shield and a bottom plate, the shield is installed at one end of the housing, the bottom plate is spaced apart from a portion of the bottom of the shield, and the lighting device passes through the bottom plate and the shield, and is directed to a cutting position of the electric circular saw.

In some embodiments of the present invention, a saw blade hole is formed on the bottom plate, and a saw blade of the electric circular saw passes through the saw blade hole.

In some embodiments of the present invention, the electric circular saw further includes a shield and a bottom plate, the shield is installed at one end of the housing, the bottom plate is provided with saw blade holes, the saw blades are arranged between the saw blade holes in a penetrating manner, the bottom plate is spaced from the bottom of the shield, and the illuminating direction of the illuminating device faces the bottom plate and the shield.

In some embodiments of the invention, the housing includes a main housing body and a handle connected to a top of the main housing body, the trigger being rotatably connected to the handle.

In some embodiments of the present invention, at least a portion of the end surface of the trigger for gripping is a curved surface.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a cross-sectional structural view of an electric circular saw according to an embodiment of the present invention;

fig. 2 schematically illustrates a partial structural view of an electric circular saw according to an embodiment of the present invention;

fig. 3 schematically shows a structural schematic diagram of a toggle button according to an embodiment of the present invention;

fig. 4 is a partial schematic structural view illustrating an illumination device portion of an electric circular saw according to an embodiment of the present invention;

the reference numbers are as follows:

10: a saw blade;

20: a main shell body,

30: a trigger;

31: toggle button, 311: shift fork, 3111: fork, 3112: connecting part, 3113: through-hole, 312: top block, 3121: center block, 3122: a protrusion;

32: a microswitch;

40: controller, 41: electric saw switch, 43: a return spring;

50: illumination device, 51: LED lamp, 52: a lamp shade;

60: base plate

70: a shield.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "in 8230 \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, the present invention provides an electric circular saw, which includes a housing, a trigger 30, a dial button 31, an electric saw switch 41, a micro switch 32, a controller 40, and a lighting device 50, wherein an inner cavity is formed inside the housing; the trigger 30 is rotatably connected to the housing; the dial knob 31 is installed in the inner cavity, and part of the dial knob 31 is arranged in the rotation range of the trigger 30; the electric saw switch 41 is arranged in the inner cavity, the input end of the electric saw switch 41 is arranged in the rotating range of the trigger 30, and the electric saw switch 41 is used for controlling the on and off of the electric circular saw; the microswitch 32 is arranged in the inner cavity, and the input end of the microswitch 32 is abutted with the toggle button 31; the controller 40 is electrically connected with the microswitch 32 and the electric saw switch 41 respectively; the lighting device 50 is installed on the housing, and the lighting device 50 is electrically connected to the controller 40, and the lighting device 50 irradiates toward the cutting position of the electric circular saw.

Specifically, the inside of the housing is provided with a motor and a controller 40, the motor drives the saw blade 10 to rotate so as to cut a workpiece, the controller 40 is electrically connected with each switch to realize the control of the electric circular saw, the housing is provided with a handle, the trigger 30 is arranged on the handle, one end of the trigger 30 is rotationally connected with an upright post in the housing, a return spring 43 is arranged between one end of the trigger 30 facing the housing and the housing, when the trigger 30 is not triggered, the return spring 43 restores the trigger 30 to the original position, the trigger switch 41 is prevented from being triggered, the electric saw switch 41 is electrically connected with the controller 40, and when the trigger 30 triggers an input end on the electric saw switch 41, the electric saw starts to operate. The other end of the trigger 30 abuts against the toggle button 31 when the trigger 30 triggers the electric saw switch 41, the toggle button 31 is driven to move, the toggle button 31 moves to trigger the micro switch 32, and the micro switch 32 is electrically connected with the controller 40, so that the lighting device 50 is started to provide lighting for cutting. The microswitch 32 is a contact mechanism having a minute contact interval and a quick action, which performs a switching action with a prescribed stroke and a prescribed force, and is a switch covered with a housing, and the outside thereof has a driving rod (i.e., an input end), the dial knob 31 is provided according to actual needs, for example, the inside of the housing is provided with a rail, the dial knob 31 is slidably provided in the rail, the dial knob 31 is further connected with a spring for resetting, one end of the trigger 30 abuts against the dial knob 31, when the trigger 30 is pulled, the trigger 30 drives the dial knob 31 to move along the rail, and the other end of the dial knob 31 presses the driving rod, so that the microswitch 32 is triggered, the lighting device 50 is turned on, when the trigger 30 is released, the spring resets the dial knob 31, the dial knob 31 is far away from the driving rod, and the microswitch 32 is turned off.

According to the utility model discloses an electric circular saw adds on traditional electric circular saw's basis and establishes dial button 31, micro-gap switch 32 and lighting assembly, triggers electric saw switch 41 and micro-gap switch 32 simultaneously when detaining trigger 30 for when 10 moving saw bits, lighting device 50 starts the illumination, improves the luminance of cutting position, strengthens user's sight, and then improves the precision of electric circular saw cutting, eliminates the potential safety hazard that the sight is not good to produce.

The utility model discloses an in some embodiments, dial button 31 is including resetting, shift fork 311 and kicking block 312, kicking block 312 and micro-gap switch 32's input butt, the inside of kicking block 312 is equipped with through-hole 3113, shift fork 311 wears to establish in through-hole 3113, shift fork 311 is located the part and the kicking block 312 butt of through-hole 3113, reset a joint between the one end of shell and shift fork 311, the other end setting of shift fork 311 is in the rotation range of trigger 30, kicking block 312 is close or keeps away from micro-gap switch 32 under shift fork 311's effect. The top block 312 comprises a cube-shaped middle block 3121 and two protrusions 3122 arranged at two ends of the middle block 3121, two grooves are respectively arranged at positions of the housing corresponding to the two protrusions 3122, the protrusions 3122 are embedded in the grooves, the top block 312 is limited, the top block 312 can only be far away from or close to the microswitch 32 along the first direction, a through hole 3113 is arranged inside the middle block 3121, the axial direction of the through hole 3113 and the first direction are arranged at an angle, the shifting fork 311 is fork-shaped, a fork portion 3111 in fork-shaped is arranged at the top of the shifting fork 311, the bottom end of the shifting fork 311 is a connecting portion 3112, the connecting portion 3112 is arranged in the rotation range of the trigger 30, a limiting structure for limiting the shifting fork 311 to move along the direction perpendicular to the first direction is also arranged inside the housing, a reset piece is arranged between the depression of the shifting fork 311 and a baffle on the housing, and the reset piece can select a spring or other elastic rubber blocks. The partial contact surface and the first direction of shift fork 311 in through-hole 3113 are angle setting with the through-hole 3113 pore wall for shift fork 311 is being pushed up the in-process by trigger 30, the extrusion piece that resets, simultaneously because the slope setting of through-hole 3113 and partial shift fork 311, make kicking block 312 to micro-gap switch 32's direction motion, micro-gap switch 32's actuating lever pressurized motion, make micro-gap switch 32 trigger, micro-gap switch 32's signal transmission to controller 40, controller 40 control lighting device 50 moves.

Specifically, the force application direction of the fork 311 to the top block 312 is set at an angle to the movement direction of the top block 312. So set up the in-process that makes shift fork 311 move along the direction perpendicular with first direction, shift fork 311 is equivalent to the inclined plane extrusion kicking block 312 of kicking block 312 for kicking block 312 moves along first direction, and then drives micro-gap switch 32, and overall structure is compact, and is with low costs, good reliability.

In some embodiments of the present invention, the lighting device 50 includes an LED lamp 51, the LED lamp 51 is mounted on the housing, and the LED lamp 51 is electrically connected to the controller 40. The LED lamp 51 has high reliability, high brightness and good illumination effect. The LED light 51 may be positioned on the housing near the blade 10 or otherwise configured to direct the angle of illumination toward the cutting location of the blade 10. The shell can be provided with a groove or a hole, the LED lamp 51 is connected with the shell in a clamping mode, and the power supply of the LED lamp 51 is LED in through an external power supply or a battery of the electric circular saw. The turning on and off of the LED lamp 51 is controlled by the controller 40 of the electric circular saw.

In some embodiments of the present invention, the lighting device 50 further includes a lampshade 52, the lampshade 52 is transparent, and the lampshade 52 covers the LED lamp 51. The effect of lamp shade 52 is protection LED lamp 51, avoids outside object to injure LED lamp 51 by a crashing object, and lamp shade 52 can use transparent plastic to make, and overall structure is the hemisphere, is connected with the shell through joint or spiro union's mode, covers LED lamp 51's the outside, protects LED lamp 51 not receive outside object's striking.

In some embodiments of the present invention, a light trough is provided on the housing, the LED lamp 51 is installed in the light trough, and the lamp shade 52 is connected to the light trough. The lamp groove can be manufactured through an injection molding process when the shell is manufactured, the through hole 3113 is formed in the lamp groove so as to penetrate through a cable of the LED lamp 51, the LED lamp 51 is embedded into the lamp groove in a clamping mode, connection with the shell is achieved, connection reliability is good, and the overall appearance is attractive.

In some embodiments of the present invention, the illumination direction of the illumination device 50 is set toward the front end of the blade 10 of the electric circular saw in the cutting direction. During actual setting, because the LED lamp 51 is supported by the two metal wires and connected, the irradiation direction of the LED lamp 51 can be conveniently adjusted, and the lamp cap of the LED lamp 51 faces the front end of the electric circular saw, so that the lighting condition of the cutting position is improved, and the accuracy and the safety during cutting are improved.

In some embodiments of the present invention, the electric circular saw further includes a protecting cover 70 and a bottom plate 60, the protecting cover 70 is installed at one end of the housing, the bottom plate 60 is provided with a hole for the saw blade 10, the saw blade 10 is inserted between the holes for the saw blade 10, the bottom plate 60 is spaced apart from a part of the bottom of the protecting cover 70, and the illuminating direction of the illuminating device 50 faces between the bottom plate 60 and the protecting cover 70. The shield 70 is adapted according to the shape of the saw blade 10 so that the shield 70 can cover the upper half of the saw blade 10, and may preferably be configured in a hollow disk shape, with the cover being disposed above the saw blade 10. The protective cover 70 is arranged to prevent the saw blade 10 from accidentally injuring a user during cutting, and the protective cover 70 has a certain collecting effect, so that waste scraps generated by cutting can be prevented from flying in a mess, polluting the environment and influencing the cutting sight. Bottom plate 60 is used for supporting with the work piece, and bottom plate 60 is equipped with the cutting hole that supplies saw blade 10 to pass through, and bottom plate 60 is connected with main casing 20 through joint or spiro union mode. The bottom plate 60 is preferably rectangular in shape, the saw blade 10 penetrates through the cutting hole, the bottom plate 60 is arranged to enable the bottom plate 60 to abut against a workpiece during cutting, the electric circular saw is not prone to shaking, stability during cutting is improved, the bottom plate 60 can also provide structural support for the protective cover 70, and connection between the protective cover 70 and the main shell 20 is more reliable. There is a space between the shield 70 and the base plate 60 from which light from the illumination device 50 can be directed into the cutting site, improving visibility and safety.

In some embodiments of the present invention, the housing includes a main housing body 20 and a handle connected to the top of the main housing body 20, the trigger 30 being rotatably connected to the handle. Make things convenient for electric circular saw to hold through setting up the handle, trigger 30 sets up on the handle, and the person of facilitating the use utilizes opening and close of trigger 30 control electric circular saw, improves use comfort.

In some embodiments of the present invention, at least a portion of the end surface of the trigger 30 for gripping is curved. The trigger 30 is provided with a cambered surface, such as a concave cambered surface, so that the comfort when the trigger 30 is pressed can be improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An electric circular saw, comprising:

a housing having an inner cavity therein;

a trigger rotatably coupled to the housing;

the toggle button is arranged in the inner cavity, and part of the toggle button is arranged in the rotation range of the trigger;

the electric saw switch is arranged in the inner cavity, the input end of the electric saw switch is arranged in the rotation range of the trigger, and the electric saw switch is used for controlling the on-off of the electric circular saw;

the microswitch is arranged in the inner cavity, and the input end of the microswitch is abutted to the toggle button;

the controller is electrically connected with the micro switch and the electric saw switch respectively;

and the lighting device is arranged on the shell and electrically connected with the controller, and the irradiation direction of the lighting device points to the cutting position of the electric circular saw.

2. The electric circular saw of claim 1, wherein the dial knob includes a reset member, a shift fork and an ejector block, the ejector block abuts against an input end of the micro switch, a through hole is formed in the ejector block, the shift fork penetrates through the through hole, a portion of the shift fork located in the through hole abuts against the ejector block, the reset member is clamped between the housing and one end of the shift fork, the other end of the shift fork is arranged in a rotation range of the trigger, and the ejector block is close to or far away from the micro switch under the action of the shift fork.

3. The electric circular saw of claim 2, wherein a direction of the force applied to the top block by the fork is disposed at an angle to a direction of movement of the top block.

4. The electric circular saw of claim 1, wherein the illumination device includes an LED light mounted on the housing, the LED light being electrically connected to the controller.

5. The electric circular saw of claim 4, wherein the illumination device further comprises a lamp cover, the lamp cover being transparent, the lamp cover covering the LED lamp.

6. The electric circular saw of claim 5, wherein a light groove is formed in the housing, the LED lamp is mounted in the light groove, and the lamp cover is engaged with the light groove.

7. The electric circular saw of claim 6, further comprising a guard mounted at one end of the housing, and a base plate spaced apart from a portion of a bottom of the guard, wherein the lighting device is directed to a cutting position of the electric circular saw through a space between the base plate and the guard.

8. The electric circular saw of claim 7, wherein a blade hole is provided on the base plate, and a blade of the electric circular saw passes through the blade hole.

9. The electric circular saw of any one of claims 1 to 8, wherein the housing includes a main housing and a handle coupled to a top portion of the main housing, the trigger being rotatably coupled to the handle.

10. The electric circular saw of claim 9, wherein at least a portion of the end surface of the trigger for gripping is curved.

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