CN101342694A

CN101342694A - Multifunctional converter of electrical drill

Info

Publication number: CN101342694A
Application number: CNA200810021948XA
Authority: CN
Inventors: 姚耕
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-01-14
Anticipated expiration: 2028-08-20
Also published as: CN101342694B; WO2010020097A1

Abstract

The present invention discloses an electric drill multifunctional converter. A transmission gear consists of a rocker, a swing stem, a slide bar and a collet which are connected orderly. One end of the rocker is filled in and fastened at an assembling hole of an electric drill bit. The transmission gear is used for changing the rotation of the motor shaft of the electric drill into the straight reciprocating motion of the collet. A cutter installed at the collet can be a saw blade, a razor blade, a file, and the like, so the electric drill has the functions of electric tools, such as an electric saw, an electric file, etc.

Description

Multifunctional converter of electrical drill

Technical field

The present invention relates to a kind of function-changing device of electric drill.

Background technology

The electric drill product that we see in market normally can only clamp drill bit in the front, is used for jewel hole or get into the cave, and function of use is single.

Summary of the invention

The applicant improves at the single shortcoming of electric drill function of use, a kind of multifunctional converter of electrical drill is provided, it can change rotatablely moving of electric drill motor output shaft into straight reciprocating motion, on multifunctional converter of electrical drill, install the cutter of saw blade, file and so on, can make electric drill bear functions such as electric saw, electric file, thereby the function of electric drill is expanded, becomes a multi-functional electric tool.

In order to achieve the above object, technical scheme of the present invention is:

Multifunctional converter of electrical drill, it comprises housing, rocking bar is installed on the housing by bearing, one end of described rocking bar is the rotating shaft that is connected with the drill bit installing hole, and the other end has an inclined-plane, and the inclined-plane is provided with connecting axle, described connecting axle is connected with the upper end of fork by locking nut, the both ends of the surface of fork upper end flexibly connect respectively and between the end face of the inclined-plane of described rocking bar and locking nut, and the lower end of fork is connected with an end of slide bar, the other end device chuck of slide bar.

Further technical scheme is: the both ends of the surface of fork upper end flexibly connect by ball respectively and between the end face of the inclined-plane of described rocking bar and locking nut; One end of the lower end of fork and slide bar flexibly connects by roller, and described roller and slide bar flexibly connect; Have the roller hole of fore-and-aft direction in slide bar, roller inserts in the described hole; In slide bar and roller, have the fork hole of above-below direction, the described above-below direction that in slide bar, has the fork hole and the roller hole of the fore-and-aft direction that has vertically communicate, the lower end of fork inserts in the fork hole of the above-below direction that has in the described roller; The fork hole of the above-below direction that has in slide bar is opposing direction and has bell-mouthed mounting hole; The angle α that the inclined-plane of rocking bar one end is become with vertical direction be 5 spend to 30 the degree between; Slide bar is installed in the friction tight guide pin bushing of engine housing, and the upper end of described guide pin bushing has groove; Handle is installed on the housing, is convenient to people's holds, be convenient to operation; The axes intersect of the axis of the connecting axle that is provided with on the axis of rocking bar rotating shaft, the inclined-plane and fork lower end is in a bit; The inwall of described guide pin bushing and the outer wall of slide bar have groove, install ball in the groove respectively, and slide bar is connected with guide pin bushing by described ball.

Motion transmission by the rocking bar, fork and the slide bar that are connected makes the present invention rotatablely moving of drill bit motor shaft is converted to the reciprocating motion that is installed on the cutter on the converter.But, electric drill has been become also have electric saw, electricity multi-functional electric tool such as to frustrate at the multiple cutter of front end clamping of the present invention.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the left view of fork of the present invention;

Fig. 3 is the front view of rocking bar of the present invention;

Fig. 4 is the structural representation of retainer;

Fig. 5 is the structural representation of slide bar and peripheral guide pin bushing thereof among the present invention;

Fig. 6 is that the A-A of Fig. 5 is to the sectional structure schematic diagram;

Fig. 7 is that the B-B of Fig. 5 is to the sectional structure schematic diagram;

Fig. 8 is the sectional structure schematic diagram that is used to install the roller of fork among Fig. 1

The specific embodiment

Below in conjunction with accompanying drawing enforcement of the present invention is described.

See Fig. 1, Fig. 3, the present invention has housing 1, by bearing 7 rocking bar 5 is installed on the housing 1, one end of described rocking bar 5 is the rotating shaft that is connected with the drill bit installing hole, the other end has an inclined-plane 4, the angle α that inclined-plane 4 is become with vertical direction be 5 spend to 30 the degree between, present embodiment get 20 the degree.Inclined-plane 4 is provided with the connecting axle 16 of one, and connecting axle 16 is preferably vertical with inclined-plane 4.See Fig. 1 to Fig. 3, connecting axle 16 is connected with the upper end 17 of fork 3 by locking nut 2, the both ends of the surface of fork 3 upper ends 17 flexibly connect by ball respectively and between the end face of the inclined-plane 4 of described rocking bar 5 and locking nut 2, to reduce the friction between the contact-making surface, noise during reduction work, during concrete enforcement, can be at the groove 19 that has annular on the inclined-plane 4 of the both ends of the surface of fork 3 upper ends 17 and rocking bar 5 around near fork upper end 17 centre bores, device ball in described groove 19, further can in described groove 19, install ball, as shown in Figure 4 by ball retainer 20; Equally, the end face of the nut 2 that contacts with fork 3 upper ends 17 also has corresponding grooves, installs ball in the groove or installs ball by ball retainer 20 in described groove.See Fig. 1, Fig. 2, Fig. 5, Fig. 8, the lower end 18 of fork 3 flexibly connects by roller 12 with an end of slide bar 13, and roller 12 flexibly connects with slide bar 13, specifically can have the roller hole 22 of fore-and-aft direction in slide bar 13, and roller 12 inserts in the described hole 22; In slide bar 13 and roller 12 and have a fork hole of above-below direction, the fork hole 21 of the above-below direction that has in slide bar 13 is for opposing direction and have bell-mouthed mounting hole, the roller hole 22 of fork hole 21 and the fore-and-aft direction that has vertically communicates, and the lower end 18 of fork 3 inserts in the fork hole 26 of the above-below direction that has in the described roller 12.Fig. 1, Fig. 2 illustrate the axis normal of the lower end 18 of the axis of upper end 17 of fork 3 and fork 3.The other end device chuck 14 of slide bar 13 can install multiple cutter in the chuck 14, for example saw blade, file and so on, and device has saw blade 15 among Fig. 1.See Fig. 1, slide bar 13 be installed on casing 1 friction tight guide pin bushing 11 in, as Fig. 5, shown in Figure 7, the upper end of guide pin bushing 11 has groove 24.As shown in Figure 1, the top of respective grooves 24 also has groove at the corresponding site of the engine housing of installing with guide pin bushing 11 tight fits 1.The axis that Fig. 3 illustrates connecting axle 16 is positioned at first position on inclined-plane 4, so can make the upper end of fork 3 be in space in the housing 1 by the top position, the best is that the axes intersect of the axis of axis, connecting axle 16 of rocking bar 5 rotating shafts and fork 3 lower ends 18 is in a bit, the lower end 18 that so can prevent fork 3 drives slide bars 13 when doing straight reciprocating motion in guide pin bushing 11, and shake up and down takes place.

Among Fig. 1,6 is the axle sleeve of rocking bar 5, and 9 is the bonnet of

housing

1, and 8 is oil seal cover.Handle 10 is installed on the housing 1, is convenient to the present invention of people's holds and operates.

The both ends of the surface of fork 3 upper ends 17 also can flexibly connect by sphere respectively and between the end face of the inclined-plane 4 of described rocking bar 5 and locking nut 2, the noise in the time of also can reducing wearing and tearing and work.

The course of work of the present invention: the right-hand member of rocking bar 5 is packed into and is anchored on the pilot hole of drill bit, and under the drive that the electric drill motor shaft rotatablely moves, rocking bar 5 rotates.The other end of rocking bar 5 has an inclined-plane 4, makes fork 3 also be in obliquity.Because the both ends of the surface of fork 3 upper ends 17 flexibly connect by ball respectively and between the inclined-plane 4 of described rocking bar 5 other ends and the locking nut 2, and an end of the lower end 18 of fork 3 and slide bar 13 flexibly connects by roller 12, described roller 12 flexibly connects with slide bar 13, thus when rocking bar 5 rotates, promotion fork 3 upper ends 17 are attached at inclined-plane 4 and do the left and right directions swing, the lower end 18 of fork 3 drives slide bar 13 and do the left and right directions straight reciprocating motion in guide pin bushing 11, and the cutter 15 that is installed in the chuck 14 is also done the left and right directions straight reciprocating motion.

For making the straight reciprocating motion of slide bar 13 in guide pin bushing 11 more flexible, as Fig. 1, Fig. 5, shown in Figure 6, can be further have groove 23 at the inwall of guide pin bushing 11, install ball in the groove, slide bar 13 is connected with the inwall of guide pin bushing 11 by described ball.Left part at guide pin bushing 11 shown in Fig. 5 has at two grooves 23, installs ball in the groove, and the ball of guide pin bushing 11 inner wall devices is more evenly distributed; Perhaps further the while has groove 25 at the right-hand member of slide bar 13, install ball in the groove, slide bar 13 is connected with the inwall of guide pin bushing 11 by described ball, and as Fig. 5, shown in Figure 7, the ball that so further improves guide pin bushing 11 inner wall devices is more evenly distributed, scope is broader.

Claims

1, multifunctional converter of electrical drill, it is characterized in that: comprise housing (1), rocking bar (5) is installed on the housing (1) by bearing (7), one end of described rocking bar (5) is the rotating shaft that is connected with the drill bit installing hole, the other end has an inclined-plane (4), inclined-plane (4) is provided with connecting axle (16), described connecting axle (16) is connected with the upper end (17) of fork (3) by locking nut (2), the both ends of the surface of fork (3) upper end (17) flexibly connect respectively and between the end face of the inclined-plane (4) of described rocking bar (5) and locking nut (2), the lower end (18) of fork (3) is connected with an end of slide bar (13), the other end device chuck (14) of slide bar (13).

2, by the described multifunctional converter of electrical drill of claim 1, it is characterized in that the both ends of the surface of described fork (3) upper end (17) flexibly connect by ball respectively and between the end face of the inclined-plane (4) of described rocking bar (5) and locking nut (2).

3, by the described multifunctional converter of electrical drill of claim 1, it is characterized in that the lower end (18) of described fork (3) and an end of slide bar (13) flexibly connect by roller (12), described roller (12) flexibly connects with slide bar (13).

4, by the described multifunctional converter of electrical drill of claim 3, it is characterized in that in slide bar (13), having the roller hole (22) of fore-and-aft direction, roller (12) inserts in the roller hole (22); In slide bar (13) and roller (12), have fork hole (21) and (26) of above-below direction, described fork hole (21) and roller hole (22) vertically communicate, and the lower end (18) of fork (3) inserts in the fork hole (26) of the above-below direction that has in the described roller (12).

5, by the described multifunctional converter of electrical drill of claim 4, the fork hole (21) that it is characterized in that the described above-below direction that has in slide bar (13) is opposing direction and has bell-mouthed mounting hole.

6, by the described multifunctional converter of electrical drill of claim 1, it is characterized in that angle α that the inclined-plane (4) of described rocking bar (5) one ends is become with vertical direction be 5 spend spend to 30 between.

7, by the described multifunctional converter of electrical drill of claim 1, its feature is in the guide pin bushing (11) that described slide bar (13) is installed on and housing (1) is friction tight, and the upper end of guide pin bushing (11) has groove.

8, by the described multifunctional converter of electrical drill of claim 1, it is characterized in that being equipped with on the described housing (1) handle (10).

9, by the described multifunctional converter of electrical drill of claim 1, the axes intersect that it is characterized in that the axis of described rocking bar (5) rotating shaft, axis that inclined-plane (4) go up the connecting axle (16) that is provided with and fork (3) lower end (18) is in a bit.

10, by the described multifunctional converter of electrical drill of claim 7, it is characterized in that having groove (23) at the inwall of described guide pin bushing (11), outer wall at described slide bar (13) has groove (25), install ball respectively in groove (23) and groove (25) groove, slide bar (13) is connected with guide pin bushing (11) by described ball.