CN211761280U

CN211761280U - Electric hammer function switching mechanism

Info

Publication number: CN211761280U
Application number: CN202020282416.8U
Authority: CN
Inventors: 林国军; 徐建恒; 叶文
Original assignee: Zhejiang Crown Electric Tools Manufacture Co ltd
Current assignee: Zhejiang Crown Electric Tools Manufacture Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-27
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses an electric hammer function switching mechanism, which comprises a plectrum, wherein one end of the plectrum can be matched and connected with a drilling gear clutch and a hammer gear clutch; the lifting mechanism is characterized by also comprising a lifting lever, wherein one end of the lifting lever is connected to the other end of the lifting sheet, and the lifting lever has elasticity; the trip device further comprises a stop pin, one end of the stop pin is connected with the other end of the deflector rod, and the other end of the stop pin is connected with the trip plate in a matched mode; the lifting rod further comprises a function knob, and the function knob acts on the lifting rod through a function knob pin eccentrically arranged on the function knob. The utility model provides a pair of electric hammer function switching mechanism realizes that the function switches convenient operation, improves machine application range, reduce cost.

Description

Electric hammer function switching mechanism

Technical Field

The utility model relates to an electric tool, especially an electric hammer function switching mechanism.

Background

The electric hammer is widely applied to the fields of industrial production, indoor decoration and the like as a common handheld electric tool, and has the advantages that the functions of impacting and drilling are needed simultaneously for different working environments (1, the impacting function is not needed on soft materials such as wood, only the drilling function is needed; 2, the impacting and drilling function is needed simultaneously for drilling holes on hard objects such as concrete, and 3, only the drilling function is needed in a simple decoration grooving and drilling area), so that the function conversion of each gear is needed, and the one-machine-one-twisting multifunctional switching is realized, so that the application range of the electric hammer is expanded.

Disclosure of Invention

The utility model aims to solve the technical problem that an electric hammer function switching mechanism is provided, realizes that the function switches convenient operation, improves machine application range, reduce cost.

In order to solve the technical problem, the utility model discloses an electric hammer function switching mechanism, wherein, the electric hammer includes the support, is located tripping plate, the jackshaft on the support and installs pinion, drill stop clutch, hammer stop clutch and swing rod bearing on the jackshaft, the electric hammer function switching mechanism includes the plectrum, one end of plectrum can with drill stop clutch and hammer stop clutch cooperation connection; the lifting mechanism is characterized by also comprising a lifting lever, wherein one end of the lifting lever is connected to the other end of the lifting sheet, and the lifting lever has elasticity; the trip device further comprises a stop pin, one end of the stop pin is connected with the other end of the deflector rod, and the other end of the stop pin is matched with the trip disc; the lifting rod further comprises a function knob, and the function knob acts on the lifting rod through a function knob pin eccentrically arranged on the function knob.

According to the utility model discloses an aspect, be equipped with on the plectrum with function knob round pin complex switches the groove, the direction in switching groove is for setting up along the axial.

According to the utility model discloses an aspect, the plectrum with driving lever complex one end is equipped with first boss and second boss, but be equipped with circumference on the second boss and fix the fixed orifices of driving lever, be equipped with the spacing groove on the first boss, the opening direction perpendicular to of spacing groove switch the groove, the spacing groove will the driving lever is acceptd wherein.

According to the utility model discloses an aspect, be equipped with on the tripping plate terminal surface with stop pin complex draw-in groove, the draw-in groove sets up along circumference equidistant.

According to the utility model discloses an aspect, among the electric hammer function switching mechanism the function knob has four at least positions, can switch four kinds of operating condition are realized to the electric hammer.

According to the utility model discloses an aspect, when the function knob is located the first position, hammer shelves clutch and combine the swing rod bearing, simultaneously it breaks away from to bore shelves clutch the pinion, and the stop pin with the tripping plate cooperation.

According to the utility model discloses an aspect, the stop pin does not get into the tripping plate draw-in groove, the driving lever is crooked, the stop pin can be along with the electric hammer operation is automatic to be fallen into in the draw-in groove.

According to an aspect of the utility model, when the function knob is located the second position, hammer shelves clutch and combine the swing rod bearing, simultaneously it breaks away from to bore shelves clutch the pinion, just the stop pin breaks away from the tripping plate.

According to an aspect of the utility model, when the function knob is located the third position, hammer shelves clutch and combine the swing rod bearing, simultaneously it combines to bore shelves clutch the pinion, just the stop pin breaks away from the tripping plate.

According to the utility model discloses an aspect, when the function knob is located the fourth position, hammer shelves clutch and break away from the swing rod bearing, simultaneously it combines to bore shelves clutch the pinion, just the stop pin breaks away from the tripping plate.

The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.

Drawings

The invention is further described with reference to the accompanying drawings and the detailed description.

Fig. 1 is an explosion diagram of the electric hammer function switching mechanism of the present invention.

Fig. 2 is the structural schematic diagram of the electric hammer function switching mechanism of the present invention when it is located at the first position.

Fig. 3 is the structural schematic diagram of the utility model which shows that the stop pin is not inserted into the trip plate when the electric hammer function switching mechanism is located at the first position.

Fig. 4 is a schematic structural view of the electric hammer function switching mechanism of the present invention when the electric hammer function switching mechanism is located at the second position.

Fig. 5 is a schematic structural view of the electric hammer function switching mechanism of the present invention when the electric hammer function switching mechanism is located at the third position.

Fig. 6 is a schematic structural view of the electric hammer function switching mechanism of the present invention when the electric hammer function switching mechanism is located at the fourth position.

Fig. 7 is a schematic view of the present invention showing a part of the shifting piece in the electric hammer function switching mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," and the like, which indicate orientation or positional relationships, are used solely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Referring to fig. 1 to 7, the present invention provides an electric hammer including a support 11 and a trip plate 10 installed on the support 11. The gear-shifting mechanism further comprises an intermediate shaft 5, a pinion 3, a drilling gear clutch 4, a hammer gear clutch 6 and a swing rod bearing 7 which are arranged on the intermediate shaft 5, and the gear-shifting mechanism is arranged from the output shaft end to the direction of the motor according to the sequence. Wherein, the trip plate 10 is equipped with draw-in groove 22 on the terminal surface that is close to the electric hammer motor, the utility model discloses it is preferred to set up this draw-in groove 22 along circumference equidistant.

The utility model provides an electric hammer still includes electric hammer function switching mechanism, including function knob 16, this function knob 16 is equipped with function knob round pin 15 at the one side of keeping away from the operating surface off-centre. The multifunctional electric switch also comprises a shifting sheet 14, wherein a switching groove 21 matched with the function knob pin is arranged on the shifting sheet 14, and the direction of the switching groove 21 is arranged along the axial direction. A shift lever 13 is further included, and the present embodiment preferably employs a shift lever having elasticity.

One end of the plectrum 14 is connected with the drilling clutch 4 and the hammering clutch 6 in a matching way, the other end of the plectrum 14 is provided with a first boss 17 and a second boss 20, wherein the second boss 20 is provided with a fixing hole 19 capable of circumferentially fixing the shifting rod, the first boss 17 is provided with a limiting groove 18, the opening direction of the limiting groove 18 is vertical to the switching groove 21, and the shifting rod 13 is accommodated in the limiting groove 18.

The electric hammer function switching mechanism further comprises a stop pin 12, one end of the stop pin 12 is provided with a through hole, a driving lever 13 can be installed in the through hole, and the other end of the stop pin 12 can be connected with a clamping groove 22 on the tripping disc 10 in a matched mode.

And the function knob is rotated, and a function rotating pin inserted into the switching groove drives the shifting lever to move along the axial direction, so that the matching relation between the shifting piece and the drilling gear clutch and the hammer gear clutch is switched, and meanwhile, the shifting lever is driven to move to change the connection relation between the stop pin and the tripping plate. Therefore, the function knob can be rotated to at least four positions, and the electric hammer can be switched to realize at least four working states. When the function knob rotates to the first position, the hammer gear clutch is combined with the swing rod bearing, meanwhile, the drill gear clutch is separated from the pinion, and the stop pin is matched with the tripping plate. If the stop pin enters the tripping plate clamping groove, the stop pin is matched with the tripping plate clamping groove, and the electric hammer function is realized; if the stop pin does not enter the clamping groove of the tripping disc, the elastic shifting rod is bent at the moment, and the stop pin can automatically fall into the clamping groove along with the operation of the electric hammer, so that the function of the electric hammer is realized.

When the function knob is located at the second position, the hammer gear clutch is disengaged from the swing rod bearing, meanwhile, the drill gear clutch is disengaged from the pinion, and the stop pin is disengaged from the disengagement disc, so that the angle of the hammer gear drill bit is adjusted. When the function knob is rotated to a third position, the hammer gear clutch is combined with the swing rod bearing, meanwhile, the drill gear clutch is separated from the combined pinion, and the stop pin is separated from the tripping plate, namely the hammer drill gear. When the function knob is rotated to the fourth position, the hammer gear clutch is disengaged from the swing rod bearing, meanwhile, the drill gear clutch is combined with the pinion, and the stop pin is disengaged from the tripping plate, namely the drill gear at the moment.

Therefore the utility model provides a pair of electric hammer function switching mechanism can realize that the function switches convenient operation, improves machine application range, reduce cost.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. An electric hammer function switching mechanism, wherein, the electric hammer includes support, lies in tripping plate, the jackshaft on the support and installs pinion, brill shelves clutch, hammer shelves clutch and the swing rod bearing on the jackshaft, its characterized in that: the electric hammer function switching mechanism comprises a plectrum, and one end of the plectrum can be matched and connected with the drilling gear clutch and the hammer gear clutch; the lifting mechanism is characterized by also comprising a lifting lever, wherein one end of the lifting lever is connected to the other end of the lifting sheet, and the lifting lever has elasticity; the trip device further comprises a stop pin, one end of the stop pin is connected with the other end of the deflector rod, and the other end of the stop pin is matched with the trip disc; the lifting rod further comprises a function knob, and the function knob acts on the lifting rod through a function knob pin eccentrically arranged on the function knob.

2. The electric hammer function switching mechanism according to claim 1, wherein: the shifting piece is provided with a switching groove matched with the functional knob pin, and the direction of the switching groove is arranged along the axial direction.

3. The electric hammer function switching mechanism according to claim 2, wherein: the shifting piece is characterized in that one end, matched with the shifting rod, of the shifting piece is provided with a first boss and a second boss, the second boss is provided with a fixing hole capable of circumferentially fixing the shifting rod, the first boss is provided with a limiting groove, the opening direction of the limiting groove is perpendicular to the switching groove, and the shifting rod is accommodated in the limiting groove.

4. The electric hammer function switching mechanism according to claim 1, wherein: and clamping grooves matched with the stop pins are arranged on the end face of the tripping plate and are arranged at equal intervals along the circumferential direction.

5. The electric hammer function switching mechanism according to claim 4, wherein: the function knob in the electric hammer function switching mechanism is provided with at least four positions, so that the electric hammer can be switched to realize four working states.

6. The electric hammer function switching mechanism according to claim 5, wherein: when the function knob is located at the first position, the hammer gear clutch is combined with the swing rod bearing, meanwhile, the drill gear clutch is separated from the pinion, and the stop pin is matched with the tripping plate.

7. The electric hammer function switching mechanism according to claim 6, wherein: the stop pin does not enter the clamping groove of the tripping disc, the shifting lever is bent, and the stop pin can automatically fall into the clamping groove along with the operation of the electric hammer.

8. The electric hammer function switching mechanism according to claim 5, wherein: when the function knob is located at the second position, the hammer gear clutch is combined with the swing rod bearing, meanwhile, the drill gear clutch is disengaged from the pinion, and the stop pin is disengaged from the tripping plate.

9. The electric hammer function switching mechanism according to claim 5, wherein: when the function knob is located at the third position, the hammer gear clutch is combined with the swing rod bearing, meanwhile, the drill gear clutch is combined with the pinion, and the stop pin is separated from the tripping plate.

10. The electric hammer function switching mechanism according to claim 5, wherein: when the function knob is located at the fourth position, the hammer gear clutch is disengaged from the swing rod bearing, meanwhile, the drill gear clutch is combined with the pinion, and the stop pin is disengaged from the tripping plate.