CN203792286U

CN203792286U - Handheld electric tool

Info

Publication number: CN203792286U
Application number: CN201420120708.6U
Authority: CN
Inventors: 吕岳
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2014-03-18
Filing date: 2014-03-18
Publication date: 2014-08-27
Anticipated expiration: 2024-03-18

Abstract

The utility model discloses a handheld electric tool. The handheld electric tool comprises a machine case, a motor, a transmission mechanism, a working component and a depth limiting stopper, wherein the motor and the transmission mechanism are arranged inside the machine case; the working component is driven by the transmission mechanism; the depth limiting stopper is close to the working component; the working component is provided with a longitudinally extending axis; the depth limiting stopper comprises a rod-shaped depth gauge, a button and an elastic piece partially pressing the button; the depth gauge and the button are provided with tooth form outlines which are matched; the button can be partially pressed by the elastic piece to slide between a first terminal and a second terminal along an arc track; when the button is located at the position of the first terminal, the tooth form outline of the depth gauge is meshed with the tooth form outline of the button, and the depth gauge is locked; when the button is located at the position of the second terminal, the depth gauge can freely slide along the axis parallel with the longitudinal extending axis. The handheld electric tool can adjust the depth limiting stopper conveniently, rapidly and reliably.

Description

Hand held electric tool

Technical field

The utility model relates to a kind of electric tool, particularly a kind of hand held electric tool with depth stop.

Background technology

Hand held electric tool, especially hand-held hammering drill or electric hammer, in order to regulate drilling depth, often have the depth stop that can be fixed on housing neck, by this depth stop, can obtain the approximate identical and adjustable boring of the degree of depth.In existing electric tool, for depth stop is adjusted on a desirable yardstick, must unclamp a pinching screw, shaft-like depth gauge rule could be regulated in its longitudinally guiding structure like this.Then need on selected adjusting position, again pinching screw be tightened again, with the variation that prevents that adjusting position from meeting accident.Here, unclamping and tightening pinching screw needs spended time very loaded down with trivial details, and not firm because its fixed form belongs to the connection of power transmission chain.

Summary of the invention

In view of above content, be necessary to provide a kind of hand held electric tool of can be easily and fast, reliably depth stop being regulated.

The utility model provides a kind of hand held electric tool, comprise casing, be arranged on motor and transmission mechanism in described casing, the operation element being driven by described transmission mechanism, and the depth stop arranging near described operation element, described operation element has a longitudinal extending axis, described depth stop comprises shaft-like depth gauge rule, the elastic component of button described in button and bias voltage, described depth gauge rule and described button have respectively the tooth profile of working in coordination, described button can be by described resilient member biases first, between the second terminal location, move, in described first terminal position, the tooth profile of described depth gauge rule and the engagement of the tooth profile of described button, described depth gauge rule is locked, at described the second terminal location, described depth gauge rule can be along being free to slide with the axis of described longitudinally extending axis line parallel, and described button can slide along an arching trajectory between described first, second terminal location.

As a kind of embodiment, described electric tool also comprises and is fixed on described casing near the locational secondary handle of described operation element, and described depth stop is arranged on described secondary handle.

As another kind of embodiment, described depth stop is arranged on described casing.

Further, described secondary handle has the grip part and the neck that is connected described grip part and described casing of extending along the direction perpendicular to described longitudinal extending axis, described neck has around the extended support of described casing, and described depth stop is by described stent support.

Further, the cross section of described depth gauge rule is roughly regular hexagon, correspondingly on described support, is provided with and is roughly orthohexagonal gathering sill, and described depth gauge rule can slide along the axis with described longitudinally extending axis line parallel in described gathering sill.

Further, described depth gauge rule has respectively described tooth profile in relative upper and lower surface, and described button has a upper surface relative with described depth gauge rule lower surface, and the tooth profile of described button is positioned on described upper surface.

Further, on described support, be provided with arc track, on described button, be provided with the guide being contained in described arc track, described guide can slide along described arc track, described button slides along described arching trajectory by described guide and is subject to the bias effect of described elastic component in the plane perpendicular to described longitudinal extending axis, and described elastic component is arranged between described support and described button.

Further, described guide is cylindrical, and described elastic component is stage clip.

Described hand held electric tool, the button that only need press by resilient member biases just can regulate depth gauge rule, and release-push locks, very convenient and regulate quick; Tooth profile engagement by depth gauge rule and button locks, the movement that makes depth gauge rule be difficult for meeting accident, and locking position is more firm.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of hand held electric tool of the present utility model;

Fig. 2 is the schematic diagram of the secondary handle of the hand held electric tool in Fig. 1;

Fig. 3 is the secondary handle of the hand held electric tool in Fig. 1 and the E-E face cutaway view of depth stop;

Fig. 4 is the secondary handle of the hand held electric tool in Fig. 1 and the F-F face cutaway view of depth stop.

The specific embodiment

Refer to accompanying drawing 1, hand held electric tool 100 as example, specifically be configured to hand-held electric hammer, the operation element 20 that comprises casing 10, is arranged on motor in casing 10 and transmission mechanism (not shown), driven by transmission mechanism, and be fixed on casing 10 near the locational secondary handle 30 of operation element 20, be arranged on the depth stop 40 on secondary handle.Be appreciated that depth stop 40 also can be arranged on the position of casing 10 near operation element 20.Operation element 20 and there is a longitudinal extending axis X, secondary handle 30 has the grip part 31 of extending along the direction perpendicular to longitudinal extending axis X and the neck 32 that is connected grip part 31 and casing 10, secondary handle 30 can be fixed on casing by various known modes, structure as CN2908065Y or CN101804619A announcement, does not repeat them here.

2-4 by reference to the accompanying drawings, neck 32 has around the extended support 321 of casing 10, and depth stop 40 is supported by support 321, comprises the elastic component 43 of shaft-like depth gauge rule 41, button 42 and biases button.Depth gauge rule 41 and button 42 have respectively the tooth profile 411,421 of working in coordination, when tooth profile 421 meshes with tooth profile 411, thereby depth gauge rule 41 is locked, can not move freely, with the position of constant depth chi, prevent the variation that adjusting position meets accident.In present embodiment, the cross section of depth gauge rule 41 is preferably roughly regular hexagon, depth gauge rule 41 has respectively tooth profile 411 in relative upper and lower surface, button 42 has a upper surface 422 relative with depth gauge rule 41 lower surfaces, the tooth profile 421 of button 42 is positioned on this upper surface 422, correspondingly on support 321, be provided with and be roughly orthohexagonal gathering sill 3211, depth gauge rule 41 can be parallel with longitudinal extending axis X on the interior edge of gathering sill 3211 axis slide, thereby regulate between operation element 20 ends and depth gauge rule 41 ends the distance A in axis X direction, regulate the working depth of operation element 20, as the drilling depth of tup.The cross section that is appreciated that depth gauge rule 41 can be also other shapes, and the shape of gathering sill 3211 is respective change thereupon; Depth gauge rule 41 also can have tooth profile in any number of planes, makes depth gauge rule can rotate corresponding angle and uses; The chi shape profile 421 of button 42 also can be positioned at other positions of button 42.

On support 321, be also provided with arc track 3212, on button 42, be provided with the guide 423 being contained in arc track 3212, press button, guide 423 slides along arc track 3212, button 42 is slided along an arching trajectory by guide 423 in the plane of vertical and longitudinal extending axis X and be subject to the bias effect of elastic component 43, elastic component 43 is arranged between support 321 and button 42.Guide 423 is preferably cylindrical, to obtain more smoothly, slides; Elastic component 43 is preferably stage clip.

In the duty of action button 42 not, button 42 is subject to the bias voltage of elastic component 43, makes guide 423 on button be positioned at the first terminal position of arc track 3212, now, tooth profile 421 on button meshes with the tooth profile 411 on depth gauge rule 41, and depth gauge rule 41 is locked; Press button 42, elastic component 43 is compressed, the active force of opposing elastic component 43 makes the guide 423 on button 42 slide into the second terminal location along arc track 3212, now, tooth profile 421 on button departs from the tooth profile 411 on depth gauge rule 41, operator is along can gathering sill 3211 slip depth gauge rules 41, thereby regulates operation element working depth.

According to hand held electric tool of the present utility model, the button that only need press by resilient member biases just can regulate depth gauge rule, and release-push locks, very convenient and regulate quick; Tooth profile engagement by depth gauge rule and button locks, the movement that makes depth gauge rule be difficult for meeting accident, and locking position is more firm.Be appreciated that depth stop that the utility model discloses also can other need to regulate the electric tool of working depth for electric drill, percussion drill etc.

The specific embodiment described above is just set forth design of the present utility model and principle, does not really want content of the present utility model to limit.Those of ordinary skill in the art can recognize, except the specific embodiment of above-mentioned first-selection, the utility model also has a lot of other embodiments that substitute or that revise, and these embodiments alternative or that revise are still within scope of the present utility model.Protection domain of the present utility model is determined by claim.

Claims

1. a hand held electric tool, comprise casing, be arranged on motor and transmission mechanism in described casing, the operation element being driven by described transmission mechanism, and the depth stop arranging near described operation element, described operation element has a longitudinal extending axis, it is characterized in that: described depth stop comprises shaft-like depth gauge rule, the elastic component of button described in button and bias voltage, described depth gauge rule and described button have respectively the tooth profile of working in coordination, described button can be by described resilient member biases first, between the second terminal location, move, in described first terminal position, the tooth profile of described depth gauge rule and the engagement of the tooth profile of described button, described depth gauge rule is locked, at described the second terminal location, described depth gauge rule can be along being free to slide with the axis of described longitudinally extending axis line parallel, and described button can slide along an arching trajectory between described first, second terminal location.

2. hand held electric tool according to claim 1, is characterized in that: described electric tool also comprises and be fixed on described casing near the locational secondary handle of described operation element, and described depth stop is arranged on described secondary handle.

3. hand held electric tool according to claim 1, is characterized in that: described depth stop is arranged on described casing.

4. hand held electric tool according to claim 2, it is characterized in that: described secondary handle has the grip part and the neck that is connected described grip part and described casing of extending along the direction perpendicular to described longitudinal extending axis, described neck has around the extended support of described casing, and described depth stop is by described stent support.

5. hand held electric tool according to claim 4, it is characterized in that: the cross section of described depth gauge rule is roughly regular hexagon, correspondingly on described support, be provided with and be roughly orthohexagonal gathering sill, described depth gauge rule can slide along the axis with described longitudinally extending axis line parallel in described gathering sill.

6. hand held electric tool according to claim 5, it is characterized in that: described depth gauge rule has respectively described tooth profile in relative upper and lower surface, described button has a upper surface relative with described depth gauge rule lower surface, and the tooth profile of described button is positioned on described upper surface.

7. hand held electric tool according to claim 4, it is characterized in that: on described support, be provided with arc track, on described button, be provided with the guide being contained in described arc track, described guide can slide along described arc track, described button slides along described arching trajectory by described guide and is subject to the bias effect of described elastic component in the plane perpendicular to described longitudinal extending axis, and described elastic component is arranged between described support and described button.

8. hand held electric tool according to claim 7, is characterized in that: described guide is cylindrical, and described elastic component is stage clip.