CN210758494U

CN210758494U - Novel electric hand drill

Info

Publication number: CN210758494U
Application number: CN201921233548.5U
Authority: CN
Inventors: 方继东; 赫宝廷; 王振江; 尹毓麒
Original assignee: Tianjin Baishikang Technology Development Co ltd
Current assignee: Tianjin Baishikang Technology Development Co ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-06-16
Anticipated expiration: 2029-08-01

Abstract

The utility model belongs to the technical field of mechanical and electric tools, and relates to a novel electric hand drill, which comprises an electric hand drill body, a handle, a front end, a drill bit, a dustproof device and a dust suction device; the dustproof device comprises a corrugated pipe, a straight pipe, a connecting ring piece, a slag discharge pipe, a flaring cover, a fixed ring piece and a reset assembly, wherein one end of the straight pipe is connected with one end of the corrugated pipe; a plurality of inclined holes are formed in the mask expanding cover; and a plurality of suckers are arranged on the upper surface of the fixed ring piece. The utility model can effectively avoid the sweeps from splashing everywhere in the punching process, greatly reduce the pollution of the sweeps to the surrounding environment, and can carry out centralized treatment on the produced sweeps, and has convenient operation and high practicability; in addition, the punching depth can be roughly recorded, and the punching depth can be controlled by workers.

Description

Novel electric hand drill

Technical Field

The utility model belongs to the technical field of mechanical electric tool, a novel electric hand drill is related to.

Background

The electric hand drill is a portable electric tool of a hand-held drilling machine, is used for drilling holes or penetrating objects on the objects, and is widely applied to industries such as buildings, decorations, furniture and the like;

however, the existing electric hand drill can generate a large amount of scraps in the drilling process, the scraps can splash everywhere, the construction environment can be greatly polluted, the cleaning is not only inconvenient, and the health of workers can be affected; in addition, the depth of the drilled hole cannot be predicted in the drilling process, if the drilled hole is too shallow, the drilled hole is often required to be drilled for multiple times to meet the construction requirement, and if the drilled hole is too deep, objects are easily damaged.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a structure sets up simple, dustproof effectual, steerable drilling depth's novel electric hand drill.

The utility model provides a technical problem adopt following technical scheme to realize:

a novel electric hand drill comprises an electric hand drill body, a handle, a front end head, a drill bit, a dustproof device detachably arranged on the front end head and a dust suction device matched with the dustproof device; the dustproof device comprises a corrugated pipe, a straight pipe, a connecting ring piece, a slag discharge pipe, a flaring cover, a fixed ring piece and a reset assembly, wherein one end of the straight pipe is connected with one end of the corrugated pipe; the flaring cover is provided with a plurality of inclined holes, and the openings of the inclined holes face the necking end of the flaring cover; a plurality of suckers are arranged on the upper surface of the fixed ring piece; the reset assembly comprises a cylinder arranged on the lower surface of the fixed ring piece, a moving rod capable of doing telescopic motion in the cylinder, a limiting round piece arranged at one end of the moving rod, a spring with one end connected with the limiting round piece and a limiting ring matched with the limiting round piece, wherein the limiting ring is arranged on the inner side of the opening of the cylinder, the other end of the spring is connected with the bottom of the cylinder, the other end of the moving rod is arranged on the connecting ring piece, and a length value is carved on the surface of the moving rod.

The connecting ring piece is connected with the front end through a screw, and a through hole for the screw to pass through is formed in the connecting ring piece.

And a sealing rubber ring is arranged at the edge of the upper surface of the fixed ring piece.

The circumference side of spacing circle spare is equipped with a plurality of hemisphere archs at even interval.

The dust suction device comprises a box body arranged on the electric hand drill body, an air inlet hole arranged on one side of the box body, a bent pipe with one end arranged at the air inlet hole, a filter residue screen plate arranged in the box body and a fan, wherein the other end of the bent pipe is connected with the residue discharge pipe.

The filter residue otter board will the box body interval is collection sediment room and exhaust chamber, the exhaust chamber is equipped with the exhaust hole, the collection sediment room is equipped with the slag hole, slag hole department is equipped with the shutoff piece.

The utility model has the advantages that:

1) the utility model discloses well dust keeper's setting can effectively avoid the sweeps to splash in the process of punching, guarantees the clean and tidy of operation environment, and then can reduce the sweeps to the healthy influence of staff greatly, and dust extraction and dust keeper's cooperation setting can carry out quick centralized processing to the sweeps that produces, has saved the required manpower and materials of later stage cleanness, and convenient operation is swift, and the practicality is high;

2) the utility model discloses in reset structure's setting can make the bellows reset fast after punching, the operation of the next time of being convenient for, in addition, carve length numerical value on the carriage release lever surface, make the carriage release lever not only play the effect that resets, can also carry out the coarse record to the drilling depth, help the staff to control the depth of punching;

3) the utility model discloses in cover at the flaring and set up the inclined hole, and this inclined hole set up the direction towards the throat end of flaring cover, the setting of this inclined hole can get into the interior air of flaring cover to the external world and play good guide effect for the air that gets into the flaring cover can form the air current towards the motion of straight tube direction, and this air current can play good wind to send the effect to the sweeps, makes the sweeps can be quick motion to slag pipe department, improves the efficiency of arranging the sediment greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 2.

Fig. 4 is an enlarged view at C in fig. 2.

Fig. 5 is an enlarged view at D in fig. 2.

Fig. 6 is a matching structure diagram of the middle expanding mask and the fixed ring member of the present invention.

Fig. 7 is a schematic structural view of the middle connection ring member of the present invention.

Fig. 8 is a matching structure diagram of the middle limiting round piece and the hemisphere protrusion of the present invention.

Fig. 9 is a schematic view of a partial cross-sectional structure of the dust suction device of the present invention.

Detailed Description

As shown in fig. 1-9, a novel electric hand drill comprises an electric drill body 1, a handle 2, a front end 3, a drill bit 4, a dust-proof device 5 and a dust suction device, wherein the handle 2 is integrally formed at the right lower end of the electric drill body 1, the front end 3 is arranged at the left end of the electric drill body 1, the drill bit 4 is mounted on the front end 3, an electric motor is arranged in the electric drill body 1, the electric motor is not shown in the drawings, and the drill bit 4 is driven to rotate by the electric motor;

the dustproof device 5 is arranged at the left end of the electric drill body 1, the dustproof device 5 is detachably connected with the front end, specifically, the dustproof device 5 comprises a corrugated pipe 51, a straight pipe 52, a connecting ring piece 53, a mouth expanding cover 54, a fixed ring piece 55 and a reset assembly, the corrugated pipe 51 is a plastic corrugated pipe, one end of the corrugated pipe 51 is connected with one end of the straight pipe 52, the straight pipe 52 is an aluminum pipe, the connecting ring piece 53 is a metal ring piece, the connecting ring piece 53 is sleeved on the other end of the straight pipe 52, the connecting ring piece 53 is connected with the front end 3 through a screw 31, through holes 311 for the screw 31 to pass through are formed in the connecting

ring piece

53, and 4 through holes 311 are formed in the connecting ring piece 53; the screw connection mode can ensure that the dustproof device can be conveniently and quickly mounted and dismounted on the front end head, and is convenient for maintaining and replacing parts; a slag discharge pipe 521 is arranged on the side surface of the straight pipe 52, and waste scraps generated in the punching process can be discharged through the slag discharge pipe 521 finally;

the other end of the corrugated pipe 51 is connected with the necking end of the mask-expanding cover 54, the mask-expanding cover 54 is made of aluminum material, the fixed ring piece 55 is a metal ring piece, the fixed ring piece 55 is sleeved on the flaring end of the mask-expanding cover 54, preferably, the upper surface of the fixed ring piece 55 is provided with a plurality of suckers 551, the suckers 551 are common silica gel suckers which can be directly purchased on the market, the structure and the principle are not repeated, preferably, the suckers 551 are totally provided with 4, the 4 suckers 551 are uniformly adhered on the fixed changing piece along the circumferential direction of the fixed changing piece at intervals, the arrangement of the suckers can stably adsorb the fixed ring piece on an object to be punched, the punching stability can be improved, the dust removal effect in the punching process can be greatly improved, preferably, in order to further avoid the scraps produced in the punching process from flying out from the gap between the fixed ring piece and the object, a sealing rubber ring 552 is also arranged, the sealing rubber ring 552 is adhered to the edge position of the upper surface plane of the fixed ring part 55, and when the suction cup is sucked on an object to be punched, the sealing rubber ring 552 can be tightly contacted with the object to achieve a good sealing effect;

the reset assembly is arranged between the connecting ring member 53 and the fixed ring member 55, and the reset assembly is arranged to ensure that the corrugated pipe can be reset quickly after each punching is finished, specifically, the reset assembly comprises a cylinder 561, a moving rod 562, a limiting circular member 563, a spring 564 and a limiting ring 565, the cylinder 561 is a metal cylinder, the cylinder 561 is arranged on the lower surface plane of the fixed ring member 55, the moving rod 562 is a metal rod, the moving rod 562 can make telescopic motion in the cylinder 561, one end of the moving rod 562 extends into the cylinder 561, the other end of the moving rod 562 is welded on the connecting ring member 53, the end of the moving rod extending into the cylinder 561 is connected with the limiting circular member 563, the limiting circular member 563 is made of a metal material, and is welded at the end of the moving rod 562, preferably, a plurality of hemispherical protrusions 566 are uniformly arranged on the circumferential arc surface of the limiting circular member 563 at intervals, the arrangement of the hemispherical bulge 566 can greatly reduce the friction resistance borne by the limiting circular piece during the movement;

the limiting ring 565 is a metal ring, the limiting ring 565 is welded on the inner side of the cylinder opening of the cylinder, the limiting ring 565 is arranged to prevent the moving rod from being pulled out of the cylinder, the spring 564 is arranged in the cylinder 561, one end of the spring 564 is connected with the bottom of the cylinder 561, and the other end of the spring is connected with the limiting circular piece 563; in the punching process, the corrugated pipe is continuously compressed along with the continuous extension of the drill bit, the moving rod extends into the cylinder, the spring is in a compressed state, after the punching is finished, the moving rod is pushed away from the cylinder under the action of the elastic force of the spring, and the corrugated pipe is reset to an initial state;

preferably, the surface of the moving rod 562 is engraved with a length value, the left end of the drill is aligned with the outer end side of the fixed ring part during punching, and the punching depth can be roughly recorded by recording the length of the moving rod extending into the cylinder, so that a worker can control the punching depth, and the situation that the punching is too deep or too shallow is avoided;

the dust-proof device can effectively prevent the scraps generated in the punching process from splashing everywhere to influence the surrounding environment and the health of workers, and in order to further facilitate the centralized treatment of the scraps, the dust-absorbing device is provided, specifically, the dust-absorbing device comprises a box body 61, an air inlet 62, a bent pipe 621, a filter residue screen 63 and a fan 64, the box body 61 is detachably arranged on the side surface of the electric drill body 1, preferably, the box body 61 is screwed on the electric drill body 1 through an L-shaped connecting piece 611, a connecting hole is arranged on the L-shaped connecting piece 611, the air inlet 62 is arranged on the left side of the box body 61, one end of the bent pipe 621 is arranged at the air inlet 62, the other end of the bent pipe 621 is connected with the slag discharge pipe 521, preferably, the bent pipe is connected with the slag discharge pipe through a pipe connector 622, and the pipe connector 622 is a common household metal water pipe connector directly available on the market, the structure and principle of the device are not described in detail herein;

a filter residue screen plate 63 is arranged in the box body 61, the box body 61 is partitioned into a residue collection chamber 631 and an exhaust chamber 632 by the filter residue screen plate 63, a fan 64 is arranged in the exhaust chamber 632, the fan 64 is a common exhaust fan which can be directly purchased from the market, the specific structure and principle are not repeated herein, a sectional view of the fan is not shown in the drawing, an exhaust hole 65 is arranged on the side wall of the exhaust chamber 632, an exhaust outlet of the fan 64 is arranged at the position of the exhaust hole 65, the residue collection chamber 631 is provided with a residue discharge hole 66, a blocking piece 67 is arranged at the residue discharge hole 66, the blocking piece 67 is a rubber plug, the blocking piece 67 can be taken down from the residue discharge hole 66, and waste residues in the residue collection chamber can be discharged from the residue discharge hole;

the fan during operation can be with the sweeps that the in-process of punching produced inhale through row's cinder pipe and return bend and carry out temporary storage, preferred, be equipped with a plurality of inclined holes 541 on the flaring cover 54, the opening direction of this inclined hole 541 is towards the throat end of flaring cover, under the effect of fan, the wind that gets into the flaring cover from the inclined hole can form the air current to the motion of straight tube direction, and this air current can play the effect of wind-feed to the sweeps, can further improve the speed of arranging the sediment, and the arrow in the drawing is the direction of motion of air.

The above detailed description of the embodiments of the present invention is only the preferred embodiments of the present invention, and the embodiments of the present invention should not be considered as limiting the scope of the present invention, and all the equivalent changes and improvements made in the application scope of the present invention should still belong to the scope of the present invention.

Claims

1. A novel electric hand drill is characterized in that: the electric hand drill comprises an electric hand drill body (1), a handle (2), a front end head (3), a drill bit (4), a dustproof device (5) detachably arranged on the front end head (3) and a dust collection device matched with the dustproof device (5); the dustproof device (5) comprises a corrugated pipe (51), a straight pipe (52) with one end connected with one end of the corrugated pipe (51), a connecting ring piece (53) sleeved at the other end of the straight pipe (52), a slag discharge pipe (521) communicated with the straight pipe (52), a mask expanding cover (54) arranged at the other end of the corrugated pipe (51), a fixed ring piece (55) sleeved at the flared end of the mask expanding cover (54) and a reset assembly matched with the fixed ring piece (55); a plurality of inclined holes (541) are formed in the mask expanding cover (54), and the openings of the inclined holes (541) face the necking end of the mask expanding cover; a plurality of suckers (551) are arranged on the upper surface of the fixed ring piece (55); the reset assembly comprises a cylinder (561) arranged on the lower surface of the fixed ring piece (55), a moving rod (562) capable of doing telescopic motion in the cylinder (561), a limiting circular piece (563) arranged at one end of the moving rod (562), a spring (564) with one end connected with the limiting circular piece (563), and a limiting ring (565) matched with the limiting circular piece (563), wherein the limiting ring (565) is arranged on the inner side of a cylinder opening of the cylinder (561), the other end of the spring (564) is connected with the bottom of the cylinder (561), the other end of the moving rod (562) is arranged on the connecting ring piece (53), and a length value is carved on the surface of the moving rod (562).

2. A novel electric hand drill according to claim 1 wherein: the connecting ring piece (53) is connected with the front end head (3) through a screw (31), and a through hole (311) for the screw (31) to pass through is formed in the connecting ring piece (53).

3. A novel electric hand drill according to claim 1 wherein: and a sealing rubber ring (552) is arranged at the edge of the upper surface of the fixed ring piece (55).

4. A novel electric hand drill according to claim 1 wherein: the circumference side of the limiting circular piece (563) is provided with a plurality of hemispherical bulges (566) at even intervals.

5. A novel electric hand drill according to claim 1 wherein: dust extraction is including locating box body (61) on electric hand drill body (1), locating fresh air inlet (62), the one end of box body (61) one side are located return bend (621) of fresh air inlet (62) department, locate filter residue otter board (63) and fan (64) in box body (61), the other end of return bend (621) with arrange sediment pipe (521) and link to each other.

6. A novel electric hand drill according to claim 5 wherein: residue otter board (63) will box body (61) interval is collection sediment room (631) and air discharge chamber (632), air discharge chamber (632) are equipped with exhaust hole (65), collection sediment room (631) are equipped with row's sediment hole (66), row's sediment hole (66) department is equipped with shutoff piece (67).