TWM554044U - Electric drill extension bar with saw blade - Google Patents

Abstract

The present invention relates to an electric drill post with a cutting saw blade, comprising a rod body and a cutting piece, the rod body comprising an integrally formed cutting piece joint section and an electric drill joint section, and the cutting piece is fixed on the cutting piece The free end of the joint section, the cutting piece is a circular plate body, and a plurality of serrations are formed around the circumference thereof, and the creation is improved by the post which is originally installed on the electric drill, so that the cutting piece can be mounted thereon. The electric drill has the function of cutting, so for the user with the electric drill, if it wants to have the function of cutting, it is not necessary to purchase a separate cutting machine, but the creation can be used to achieve the same electric drill with drilling and cutting. Features.

Description

Electric drill post with cutting blade

The present invention relates to a drill bit for an electric drill, and more particularly to an electric drill post having a cutting saw blade.

An electric drill is a processing tool for perforating a hole. The principle is to hold a drill bit at the front end of the electric drill, and the electric drill further rotates the drill bit to achieve the function of drilling. When the user performs the chiseling function, the electric drill is usually accompanied. In the prior art, in the case of the chiseling operation, the cutting machine dedicated to cutting is used. In other words, in the prior art, the processing tool having the function of both piercing and cutting is not used. If you need to use both functions at the same time, you must purchase the drill for cutting and the cutting machine for cutting. Therefore, for users who are not frequently used, a separate cutting machine is purchased for the function of cutting. There is inconvenience in it.

In view of the shortcomings and deficiencies of the prior art, the present invention provides an electric drill post with a cutting saw blade, which is designed to change the head of a general electric drill bit into a cutting saw blade, so that the user only needs to replace the electric drill bit. You can switch between the two functions of cutting and drilling.

For the purpose of the above-mentioned creation, the technical means adopted by the present invention is an electric drill post with a cutting saw blade, which comprises a rod body having a connected cutting piece joint section and an electric drill joint section; It is fixed to the free end of the cutting piece engaging portion of the rod body, the cutting piece is a circular plate body, and the peripheral edge of the cutting piece is formed with a plurality of serrations.

The advantage of this creation is that the cutting saw blade with cutting function is combined with the electric drill bit. In other words, compared with the prior art, the user must prepare the electric drill and the cutting machine to achieve the effect of drilling and cutting. The need for an electric drill and the two different joints, the general electric drill bit and the splicing saw blade of the present invention, can achieve the cutting and drilling of the prior art at a significant cost reduction. In addition, the cutting direction of the cutting piece of the present invention is perpendicular to the hand-held direction of the electric drill installed therein, so the creation is more convenient when cutting a protruding part such as a wall surface.

Further, the foregoing electric drill post with a cutting blade, wherein a screw hole is formed through the free end of the cutting piece; the cutting piece has a fixing hole penetrating through the center thereof; further comprising a screw, the screw penetrating through the The fixing hole of the cutting piece is screwed into the screw hole, so that the cutting piece is fixed on the rod body.

Further, the foregoing electric drill post with a cutting saw blade further includes at least one gasket disposed on the screw and sandwiched between the screw and the cutting piece.

Further, in the foregoing electric drill post with a cutting saw blade, wherein the free end of the cutting piece engaging portion of the rod body protrudes from a ring wall surface, the ring wall surface is disposed around the screw hole; The fixing hole sleeve is attached to the ring wall surface.

Further, the aforementioned electric drill post with a cutting blade, wherein the cutting blade engaging section has a radial thickness greater than a radial thickness of the electric drill engaging section.

Further, the aforementioned electric drill post with a cutting saw blade, wherein the radial thickness of the cutting piece engaging section gradually increases toward the free end.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2 , the electric drill post with a cutting saw blade of the present invention comprises a rod body 10 , a cutting piece 20 , a screw 31 and at least one spacer 32 .

Referring to FIG. 2, the rod body 10 includes a cutting piece engaging portion 11, an electric drill engaging portion 12, a ring wall surface 13 and a screw hole 14.

The dicing blade joint section 11 is integrally formed with the electric drill joint section 12, as shown in Fig. 4, the lengths of the dicing blade joint section 11 and the electric drill joint section 12 are L1 and L2, respectively, and the radial thickness of the dicing blade joint section 11 is obtained. More than the radial thickness of the electric drill joint section 12, and the radial thickness of the cutting blade joint section 11 is gradually thickened away from the electric drill joint section 12, but not limited thereto, the cutting blade joint section 11 and the electric drill joint section The length and thickness settings of 12 can also be adjusted according to the needs of users.

Referring to FIGS. 2 and 4, the dicing blade engaging section 11 further includes a free end 111 which is an end of the dicing blade engaging section 11 away from the electric drill engaging section 12, and an end surface of the free end 111 is formed with a protruding end. The ring wall surface 13 and the screw hole 14 are formed in the center of the end surface, and the ring wall surface 13 is disposed around the screw hole 14. In the embodiment, the ring wall surface 13 and the screw hole 14 are spaced apart, and the ring wall surface 13 is provided. The shape of the ring is surrounded by the screw hole 14 , but not limited thereto, the ring wall surface 13 can also protrude from the periphery of the screw hole 14 , and the shape thereof can also be non-circular.

Referring to FIG. 3 and FIG. 4, the free end of the electric drill joint section 12 has a hexagonal shape, and has a plurality of concave and convex lines on the side wall surface thereof, and the hexagonal and concave and convex lines are designed to match the general electric drill, so Knowing the technology, I will not repeat them here.

Referring to FIG. 1 and FIG. 2, the cutting piece 20 is fixed to the free end 111 of the cutting piece joint section 11 of the rod body 10. More precisely, the cutting piece 20 is a circular plate body, and the cutting piece is cut. A plurality of serrations 21 are formed around the periphery of the cutting edge 20, and a fixing hole 22 is formed in the center of the cutting piece 20. The shape and aperture of the fixing hole 22 are matched with the ring wall surface 13 of the foregoing, and the cutting piece 20 is passed through the fixing hole 22 It is disposed outside the ring wall surface 13 and is in contact with the end surface of the free end 111.

Referring to FIG. 2 and FIG. 4 , the screw 31 is inserted through the fixing hole 22 of the cutting piece 20 and screwed into the screw hole 14 to fix the cutting piece 20 to the rod body 10 , and the at least one spacer 32 is fastened. The sleeve is disposed on the screw 31 and is screwed between the cutting piece 20 and the head of the screw 31 by the screw 31. In this embodiment, the number of the at least one spacer 32 is two, but not To be limited, it can also be other quantities.

Referring to FIG. 5, the present invention improves the drill bit of the general electric drill by retaining the outer shape of the electric drill joint section 12, and the other end, that is, the cutting piece joint end 11, is changed from the general drill bit to the original cut. With the structure of the saw blade, and through this change, the creation not only incorporates the cutting function into the general electric drill, that is, the user does not need to separately purchase the cutting machine for cutting, thereby saving the user's cost; in addition, the creation is connected by the electric drill. 12 After the cutting piece 20 is mounted with the electric drill 90, the cutting direction is perpendicular to the cutting direction of the general cutting machine, so that when the user performs the cutting, the hand takes the electric drill 90 to face the place to be cut, and the cutting can be performed. Compared with the prior art hand-held cutting machine, the cutting direction is parallel to the direction of the body. If the cutting portion such as a wall is to be cut, the hand-held angle of the creation is also relatively easy to operate.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present invention, and is not in any technical field. A person skilled in the art can make a few changes or modifications as equivalent embodiments of the technical content disclosed above without departing from the scope of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the present technical solution.

10‧‧‧ rod body
11‧‧‧ cutting piece joint
111‧‧‧Free end
12‧‧‧Electric drill joint
13‧‧‧ ring wall
14‧‧‧ screw holes
20‧‧‧Cut slices
21‧‧‧Sawtooth
22‧‧‧Fixed holes
31‧‧‧ screws
32‧‧‧shims
90‧‧‧Electric drill
L1‧‧‧ cutting piece joint length
L2‧‧‧Electric drill joint length

Figure 1 is a three-dimensional appearance of the creation. Figure 2 is an exploded perspective view of the present creation. Figure 3 is a plan back view of the creation. Figure 4 is a top view of the creation. Figure 5 is a diagram showing the state of use of the present creation and the electric drill.

10‧‧‧ rod body

11‧‧‧ cutting piece joint

111‧‧‧Free end

12‧‧‧Electric drill joint

20‧‧‧Cut slices

21‧‧‧Sawtooth

Claims (7)

An electric drill post with a cutting saw blade, comprising a rod body having a connected cutting piece engaging section and an electric drill engaging section; a cutting piece fixed to the cutting piece engaging section of the rod body The free end, the cutting piece is a circular plate body, and the periphery of the cutting piece is formed with a plurality of serrations. An electric drill post with a cutting blade according to claim 1, wherein a screw hole is formed through the free end of the cutting piece; a fixing hole is formed in the center of the cutting piece; further comprising a screw, the screw is inserted The fixing hole of the cutting piece is screwed into the screw hole, so that the cutting piece is fixed on the rod body. The electric drill post with a cutting blade according to claim 2, further comprising at least one gasket, the at least one gasket being sleeved on the screw and being sandwiched between the screw and the cutting blade . The electric drill post with a cutting blade according to claim 2, wherein a free wall end of the cutting piece of the rod protrudes from a ring wall surface, the ring wall surface is disposed around the screw hole; The fixing hole sleeve is attached to the ring wall surface. An electric drill post with a cutting blade according to claim 3, wherein a free wall end of the cutting piece of the rod protrudes from a ring wall surface, the ring wall surface is disposed around the screw hole; The fixing hole sleeve is attached to the ring wall surface. An electric drill post having a cutting blade according to any one of claims 1 to 5, wherein the cutting blade engaging section has a radial thickness greater than a radial thickness of the electric drill engaging section. The electric drill post with a cutting blade according to any one of claims 1 to 5, wherein a radial thickness of the cutting piece engaging section gradually increases toward the free end.