CN210099030U - Handheld electric drill with dustproof function - Google Patents

Abstract

The utility model discloses a hand-held electric drill with dust-proof function, the structure of which comprises a casing, a handle, an external power line, a switch button, a dustproof pipe, a drill bit, a shaft coupling, an external thread, a motor and a waterproof breathable film, the dustproof pipe is formed by sleeving an outer pipe and an inner pipe, the inner side of the outer pipe is inserted into a groove at the joint of the inner pipe through a fixture block and slides along a chute at the outer side of the inner pipe, and the right end of the fixture block is supported by a spring, so that the electric drill can slide the outer pipe rightwards when in operation, the positions of the drill bit and the position needing to be drilled are confirmed, when in drilling, dust and particles generated in the drilling process of the drill bit are wrapped by the outer pipe, the drill bit is pushed leftwards, the outer pipe moves rightwards along the inner pipe, the depth of the dustproof pipe to follow the drilling is automatically shortened, and the radiating holes, the heat dissipation effect in the shell is improved, and meanwhile, water and dust are prevented from entering the shell.

Description

Handheld electric drill with dustproof function

Technical Field

The utility model relates to an electric drill technical field, concretely relates to hand-held type electric drill with dustproof function.

Background

The electric drill is the most commonly used electric tool, has the advantages of convenience, low price, portability and the like, is well received by workers in the industries of hardware and decoration, and can drill holes on various materials such as wood, metal, cement walls and the like by using the electric drill, wherein the wall body is most commonly drilled, in the process of drilling holes on the wall body by using the electric drill, cement can be crushed by a drill bit, the crushed cement can splash under the rotating action of the drill bit, the splashed sand and dust can rapidly diffuse into a working space to bring trouble to the breathing of workers, and serious lung harm can be brought to people by sucking the dust for a long time, meanwhile, in the process of working of the electric drill, particles doped in the dust can possibly enter human eyes of the workers to influence the working of the workers and possibly cause more serious accidents, the existing electric drill has common dust raising prevention effect and poor heat dissipation effect, therefore, we propose a hand held electric drill with a dust prevention function to solve the above problems.

Disclosure of Invention

Technical problem to be solved

In order to overcome prior art not enough, the hand-held type electric drill with dustproof function is proposed at present, the drill bit can be smashed cement when having solved the electric drill and using, kibbling cement can splash under the rotation effect of drill bit, the particulate matter of doping in the dust probably can get into in the worker's eye, influence workman's work, and probably cause more serious accident, and the not good problem of radiating effect, dust and the granule that produce when having reached to drill bit drilling wrap up, and avoid in water and the dust gets into the casing when having increased the inside radiating effect of casing.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a hand-held electric drill with dust-proof function, which comprises a casing, a handle, an external power line, a switch button, a dustproof pipe, a drill bit, a fixed casing, an external thread, a motor, an output shaft, a shaft coupling, a heat dissipation hole and a waterproof and breathable film, wherein the right side of the bottom end of the casing is in bolted connection with the handle, the external power line extends into the casing through a through hole at the bottom end of the handle, the switch button is embedded in a groove at the top end of the left side of the handle, the left end of the outer side of the casing is in threaded connection with the dustproof pipe, the motor is embedded at the right end in the casing and is locked and fixed with the casing through a bolt, the left end of the motor is provided with the output shaft, the left end of the output shaft is in rotational connection with the drill bit through the shaft coupling, the shaft coupling is embedded in, the utility model discloses a dustproof pipe, including the louvre, waterproof ventilated membrane, outer tube, fixture block, spring, outer tube, spring, casing, the louvre is provided with the recess outside, the recess outside is provided with the spout, the outer tube is inside to be welded with the fixture block, outer tube cup joints at inner tube outside left end, the fixture block stretches into in the recess through the spout, the spring embedding is inside the recess, and the spring left end supports with the fixture block, and the spring right-hand member supports with the inside right-hand member of recess, the inside right side of inner tube is provided with the internal thread, and the internal tube carries out threaded connection through the external screw thread in internal thread and the casing outside.

Further, a layer of rubber pad is arranged on the outer side of the outer pipe, and anti-skid grains are arranged on the outer side of the rubber pad.

Further, recess, spout, spring and fixture block all are provided with more than two, and evenly distributed is in the inner tube outside.

Further, the outer diameter of the spring is larger than the width of the sliding groove.

Furthermore, a baffle is arranged on the right side inside the groove and is connected with the inner pipe through bolts.

Furthermore, the area of the waterproof breathable film is larger than that of the heat dissipation holes.

Further, the extended length of the spring is consistent with the length of the outer tube.

Further, the spring is a compression spring.

Furthermore, the motor is a Y2-160L-4 pole motor.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) in order to solve the problems that cement is crushed by a drill bit when the electric drill is used, the crushed cement splashes under the rotating action of the drill bit, particles doped in dust are likely to enter eyes of workers, the work of the workers is affected, more serious accidents are likely to be caused, and the heat dissipation effect is poor, the dust-proof pipe is formed by mutually sleeving an outer pipe and an inner pipe, the inner pipe is fixedly connected with the outer side of a machine shell through threads, the inner side of the outer pipe is inserted into a groove at the joint of the inner pipe through a clamping block and slides along a sliding groove at the outer side of the inner pipe, the right end of the clamping block is supported through a spring, so that the outer pipe can slide rightwards when the electric drill is operated, the positions of the drill bit and the position needing drilling are confirmed, when the drilling is carried out, the dust and particles generated when the drill bit is drilled through the outer pipe, the, the depth of the dustproof pipe along with the drilling hole is automatically shortened, the radiating holes are formed in the outer side of the machine shell, the waterproof and breathable film is covered in the radiating holes, and water and dust are prevented from entering the machine shell while the radiating effect of the inner portion of the machine shell is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the housing and the dust-proof pipe of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

fig. 4 is a schematic view of the inner structure of the dust-proof tube of the present invention;

fig. 5 is a side view of the internal structure of the groove of the present invention.

In the figure: the device comprises a machine shell-1, a handle-2, an external power line-3, a switch button-4, a dustproof pipe-5, a drill-6, a fixed shell-7, external threads-8, a motor-9, an output shaft-10, a coupler-11, heat dissipation holes-12, a waterproof breathable film-13, an inner pipe-51, internal threads-52, a groove-53, a chute-54, a spring-55, an outer pipe-56 and a fixture block-57.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3, 4 and 5, the present invention provides an electric hand drill with dust-proof function: comprises a casing 1, a handle 2, an external power line 3, a switch button 4, a dustproof pipe 5, a drill bit 6, a fixed casing 7, external threads 8, a motor 9, an output shaft 10, a coupler 11, heat dissipation holes 12 and a waterproof breathable film 13, wherein the right side of the bottom end of the casing 1 is in bolt connection with the handle 2, the external power line 3 extends through a through hole at the bottom end of the handle 2, the switch button 4 is embedded in a groove at the top end of the left side of the handle 2, the left end of the outer side of the casing 1 is in thread connection with the dustproof pipe 5, the motor 9 is embedded at the right end inside the casing 1 and is locked and fixed with the casing 1 through bolts, the output shaft 10 is arranged at the left end of the motor 9, the left end of the output shaft 10 is in rotary connection with the drill bit 6 through the coupler 11, the coupler 11 is embedded in the heat dissipation holes of the, waterproof ventilated membrane 13 covers inside louvre 12, and waterproof ventilated membrane 13 bonds with casing 1, dustproof pipe 5 is by inner tube 51, internal thread 52, recess 53, spout 54, spring 55, outer tube 56 and fixture block 57 are constituteed, the inner tube 51 outside is provided with recess 53, the recess 53 outside is provided with spout 54, the inside welding with fixture block 57 of outer tube 56, outer tube 56 cup joints at inner tube 51 outside left end, fixture block 57 stretches into in recess 53 through spout 54, the embedding of spring 55 is inside recess 53, and the spring 55 left end supports with fixture block 57, the spring 55 right-hand member supports with the inside right-hand member of recess 53, the inside right side of inner tube 51 is provided with the internal thread, and inner tube 51 carries out threaded connection through external screw thread 8 in the internal thread 52 and the casing 1 outside.

Wherein, the outer tube 56 outside is provided with the one deck rubber pad, and the rubber pad outside is provided with anti-skidding line, is favorable to promoting outer tube 56, and makes things convenient for outer tube 56 to drive inner tube 51 and rotate.

The number of the grooves 53, the sliding grooves 54, the springs 55 and the clamping blocks 57 is more than two, and the grooves, the sliding grooves 54, the springs 55 and the clamping blocks 57 are uniformly distributed on the outer side of the inner tube 51, so that the outer tube 56 can be stably supported.

Wherein, the outer diameter of the spring 55 is larger than the width of the sliding slot 54, which is beneficial to prevent the spring 55 from popping out from the sliding slot 54.

Wherein, the inside right side of recess 53 is provided with a baffle, and the baffle carries out bolted connection with inner tube 51, is favorable to installing spring 55 and fixture block 57 to the recess 53 in, and supports spring 55 right-hand member through the baffle.

The area of the waterproof breathable film 13 is larger than the heat dissipation holes 12, so that the heat dissipation holes 12 can be completely covered, and the casing 1 is internally provided with a waterproof effect.

The length of the extended spring 55 is the same as the length of the outer tube 56, which is beneficial to pushing out the outer tube 56 for the maximum distance.

Wherein, spring 55 adopts compression spring, and the supporting effect is good, and not fragile.

The motor 9 is a Y2-160L-4 pole motor, and is high in rotating speed and good in heat dissipation effect.

This patent spring 55 adopt compression spring, bear the coil spring to pressure, and the material cross-section that it used is mostly circular, also useful rectangle and stranded steel entangle and roll up, and the spring generally is equidistant, and compression spring's shape has: the compression spring is cylindrical, conical, convex and concave, and a small number of non-circular shapes, and the like, a certain gap is reserved between the rings of the compression spring, and the compression spring contracts and deforms when subjected to external load, so that deformation energy is stored.

The working principle is as follows: before the use, firstly, the external power line 3 is connected with an external power supply, then the inner pipe 51 of the dustproof pipe 5 is in threaded connection with the external thread 8 on the outer side of the machine shell 1 through the internal thread 52 by rotating the dustproof pipe 5, then the drill bit 6 is aligned with the position to be drilled, when the alignment is carried out, the outer pipe 56 is pushed rightwards, the fixture block 57 in the outer pipe 56 extrudes the spring 55 and moves rightwards along the sliding groove 54, the outer pipe 56 moves rightwards, the alignment of the drill bit 6 and the drilling position is convenient to observe, after the drill bit 6 is aligned with the drilling position, the outer pipe 56 is loosened, the fixture block 57 is pushed by the thrust generated by the spring 55, the outer pipe 56 is pushed leftwards by the fixture block 57, the outer side of the drill bit 6 is wrapped by the outer pipe 56, then the switch button 4 is pressed to send a control command, the motor 9 is, the drill bit 6 rotates at a high speed to drill, when drilling, the outer pipe 56 wraps the outer side of the drill bit to wrap dust and particles generated during drilling, so that splashing sand and dust can be prevented from rapidly spreading in a working space to cause troubles to breathing of workers, serious lung harm can be brought to people after long-term suction of the dust, the situation that particles doped in the dust can possibly enter human eyes of the workers to affect the work of the workers and cause more serious accidents is avoided, the drill bit 6 is pushed leftwards during drilling, the outer pipe 56 is supported through a wall, the outer pipe 56 moves rightwards along the inner pipe and is supported through the spring 55, the depth of the dustproof pipe 5 along with the drilling is automatically shortened, heat dissipation holes 12 are formed in the outer side of the machine shell 1, a layer of waterproof breathable film 13 is covered in the heat dissipation holes, the heat dissipation effect in the machine shell 1 is improved, and meanwhile, water and dust are prevented from entering the machine shell 1, causing a problem of damage to the internal circuitry and parts of the housing 1.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A handheld electric drill with a dust-raising prevention function comprises a casing (1), a handle (2), an external power line (3), a switch button (4), a drill bit (6), a fixed shell (7), external threads (8), a motor (9), an output shaft (10) and a coupler (11), wherein the right side of the bottom end of the casing (1) is in bolt connection with the handle (2), the external power line (3) stretches into the through hole at the bottom end of the handle (2), the switch button (4) is embedded in a groove at the top end of the left side of the handle (2), the left end of the outer side of the casing (1) is in threaded connection with a dustproof pipe (5), the motor (9) is embedded at the right end inside the casing (1) and is locked and fixed with the casing (1) through a bolt, the left end of the motor (9) is provided with the output shaft (10), and the left end of the output shaft (10) is in rotation connection with the drill bit (6) through, the coupler (11) is embedded in the fixed shell (7), the right end of the fixed shell (7) is in bolted connection with the machine shell (1), and heat dissipation holes (12) are formed in the right sides of the front end and the rear end of the machine shell (1);

the method is characterized in that: the waterproof breathable film cabinet is characterized by further comprising a dustproof pipe (5), a radiating hole (12) and a waterproof breathable film (13), wherein the waterproof breathable film (13) covers the radiating hole (12), the waterproof breathable film (13) is bonded with the cabinet (1), the dustproof pipe (5) is composed of an inner pipe (51), an internal thread (52), a groove (53), a sliding groove (54), a spring (55), an outer pipe (56) and a clamping block (57), the groove (53) is formed in the outer side of the inner pipe (51), the sliding groove (54) is formed in the outer side of the groove (53), the inner part of the outer pipe (56) is welded with the clamping block (57), the outer pipe (56) is sleeved at the left end of the outer side of the inner pipe (51), the clamping block (57) extends into the groove (53) through the sliding groove (54), the spring (55) is embedded into the groove (53), and the left end of the spring (55) is, the right end of the spring (55) and the right end inside the groove (53) are supported, an internal thread is arranged on the right side inside the inner pipe (51), and the inner pipe (51) is in threaded connection with an external thread (8) on the outer side of the machine shell (1) through the internal thread (52).

2. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: a layer of rubber pad is arranged on the outer side of the outer pipe (56), and anti-skid grains are arranged on the outer side of the rubber pad.

3. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: the groove (53), the sliding groove (54), the spring (55) and the clamping block (57) are more than two and are uniformly distributed on the outer side of the inner tube (51).

4. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: the outer diameter of the spring (55) is larger than the width of the sliding groove (54).

5. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: a baffle is arranged on the right side inside the groove (53), and the baffle is connected with the inner pipe (51) through bolts.

6. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: the area of the waterproof breathable film (13) is larger than that of the heat dissipation holes (12).

7. The handheld electric drill with the dust prevention function as claimed in claim 1, characterized in that: the extended length of the spring (55) is consistent with the length of the outer tube (56).

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