CN114042968B

CN114042968B - Dustproof electric drill of dust removal

Info

Publication number: CN114042968B
Application number: CN202111452866.2A
Authority: CN
Inventors: 刘礼花
Original assignee: Hangzhou Weitu Technology Development Co ltd
Current assignee: Hangzhou Weitu Technology Development Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2023-06-09
Anticipated expiration: 2041-12-01
Also published as: CN114042968A

Abstract

The invention discloses a dustproof electric drill which comprises an electric drill body and a drill bit mechanism, wherein the drill bit mechanism comprises a drill bit, a dustproof cover, a rotating cylinder, a connecting cylinder and a connector, the drill bit, the dustproof cover, the rotating cylinder, the connecting cylinder and the connector are coaxially arranged, the rotating cylinder is fixedly connected with the dustproof cover, the connecting cylinder is arranged on one side of the rotating cylinder far away from the dustproof cover, the connecting cylinder is connected with the rotating cylinder through a connecting rod and an adjusting component, the connector is arranged on one side of the connecting cylinder far away from the rotating cylinder and is in axial sliding connection with the connecting cylinder, an elastic component is arranged between the connector and the connecting cylinder, the drill bit penetrates through the connecting head from the axis, a penetrating channel with a downward opening is arranged in the dustproof cover, two sliding baffles which are in sliding connection with the inner wall of the dustproof cover are symmetrically arranged on curved surfaces of two sides of the penetrating channel, and the opening of the penetrating channel is closed after the two sliding baffles are combined.

Description

Dustproof electric drill of dust removal

Technical Field

The invention relates to the field of electric tools, in particular to a dustproof electric drill.

Background

When the electric drill is used for punching, a large amount of dust pollution is generated, so that the working environment of a user is deteriorated, and the indoor environment is polluted. In order to solve the problem, CN210099031U discloses a dustproof electric drill, including electric drill, connecting portion and dust cover, the dust cover passes through connecting portion and is connected with electric drill, and dust and piece can be collected to the dustproof cavity of dust cover, avoids it to fly upward everywhere, ensures construction environment, avoids it to influence constructor's healthy, but it can't be in the automatic dust exhaust of working process, leads to electric drill work after having to clear up dust and piece in the dust cover for a while and just can continue the operation.

Disclosure of Invention

The invention aims to solve the technical problem that the prior art has the defects, and provides a dustproof electric drill.

According to the invention, the electric drill comprises an electric drill body and a drill bit mechanism, wherein the drill bit mechanism comprises a drill bit, a dust cover, a rotating cylinder, a connecting cylinder and a connector, the drill bit, the dust cover, the rotating cylinder, the connecting cylinder and the connector are coaxially arranged, the rotating cylinder is fixedly connected with the dust cover, the connecting cylinder is arranged on one side, far away from the dust cover, of the rotating cylinder, the connecting cylinder is connected with the rotating cylinder through a connecting rod and an adjusting component, the connector is arranged on one side, far away from the rotating cylinder, of the connecting cylinder and is in axial sliding connection with the connecting cylinder, an elastic component is arranged between the connector and the connecting cylinder, the drill bit penetrates through the connector from the axis of the connector to be fixed, a through passage with an opening facing downwards is arranged in the dust cover, two sliding baffles which are in sliding connection with the inner wall of the dust cover are symmetrically arranged on curved surfaces of two sides of the through passage, and after the two sliding baffles are combined, the opening of the through passage is closed.

In the electric drill capable of preventing dust and discharging dust, one end of the sliding baffle, which is close to the rotating cylinder, extends into the rotating cylinder, a sliding groove is formed in a path swept by the sliding baffle, an inflation expansion pipe with the same curvature as that of the curved surface of the dust cover is arranged in the sliding groove, and two ends of the inflation expansion pipe are respectively fixedly inserted into the sliding baffle.

In the electric drill capable of preventing dust and discharging dust, the inflatable expansion pipe is inflated to be large in size, so that the two sliding baffles slide in the dust cover in the direction away from each other, and the through channel is opened.

In the electric drill capable of preventing dust and exhausting dust, the air guide pipe is communicated with the inside of the inflation expansion pipe, the elastic assembly comprises a sealing rubber layer and a buffer spring, and one end, far away from the inflation expansion pipe, of the air guide pipe penetrates through a central gap of the rotating cylinder to extend into the connector and is communicated with a space formed by surrounding the buffer spring by the sealing rubber layer.

In the electric drill of dustproof dust removal, buffer spring sets up between connector and connecting cylinder and both ends respectively with connecting cylinder and connector butt, sealing rubber layer encircles the parcel in buffer spring's the outside, and sealing rubber layer encircles the space that buffer spring formed and external isolation.

In the electric drill capable of preventing dust and discharging dust, the sliding adjusting grooves are symmetrically formed in one side, facing the connecting cylinder, of the rotating cylinder relative to the drill bit, the opening of the sliding adjusting grooves faces the connecting cylinder, and one end, far away from the connecting cylinder, of the connecting rod is slidably arranged in the sliding adjusting grooves.

In the electric drill capable of preventing dust and exhausting dust, a friction layer is fixedly arranged at one side end of the sliding adjusting groove, which is far away from the opening.

In the electric drill capable of preventing dust and exhausting dust, the friction force of the friction layer contacted with the connecting rod is larger than the friction force between the connecting rod and the rotating cylinder.

In the electric drill of dustproof dust removal, above-mentioned, adjusting part includes handle and threaded rod, and the threaded rod rotates to set up in the connecting cylinder and keeps away from one side terminal surface of rotating the cylinder, and the threaded rod extends to in the connecting cylinder with connecting rod threaded connection, the handle is fixed in the threaded rod one end of keeping away from the connecting rod.

In the electric drill capable of preventing dust and discharging dust, a dust discharging pipe communicated with the through channel is fixedly arranged below the dust cover and the rotating cylinder.

The dust cover disclosed by the invention can uniformly collect and treat dust generated by punching, solves the problem that the punched dust pollutes the indoor environment, cleans the punching operation, greatly reduces the damage to the body of a user, is beneficial to improving the quality of the working environment of the user, is internally provided with the through channel with the downward opening, and is symmetrically provided with the sliding baffles which are in sliding connection with the inner wall of the dust cover on the curved surfaces at two sides of the through channel, so that the dust can be automatically discharged.

Drawings

The invention will be more fully understood and its attendant advantages and features will be more readily understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view of a cross-section of a structure according to an embodiment of the present invention.

Fig. 3 is a front view in cross-section of fig. 2.

Fig. 4 is an enlarged view of the structure at a in fig. 2.

Fig. 5 is an enlarged view of the structure at B in fig. 2.

FIG. 6 is a schematic diagram of the structure of C-C in FIG. 3.

Fig. 7 is a schematic diagram of the structure of D-D in fig. 3.

In the figure: an elastic component a; an adjusting assembly b; a dust cover 10; a buffer sleeve 11; a connecting cylinder 12; a drill 13; a rotating cylinder 14; a connector 15; a sliding shutter 20; an air duct 21; a dust discharge pipe 22; an inflation tube 23; a connecting rod 30; a friction layer 31; a handle 32; a threaded rod 33; a slide adjustment slot 34; a seal rubber layer 40; and a buffer spring 41.

It should be noted that the drawings are for illustrating the invention and are not to be construed as limiting the invention. Note that the drawings representing structures may not be drawn to scale. Also, in the drawings, the same or similar elements are denoted by the same or similar reference numerals.

Detailed Description

In order that the invention may be more readily understood, a detailed description of the invention is provided below along with specific embodiments and accompanying figures.

As shown in fig. 1 to 7, the electric drill of the present embodiment includes a dust cover 10, a buffer sleeve 11, a connecting barrel 12, a drill bit 13, a rotary barrel 14, a connector 15, and a connecting rod 30 coaxially arranged, and further includes an adjusting assembly b. The dust cover 10 is the translucent cover, through setting up the dust cover 10, but the user real-time observation condition of punching has solved the unable problem of observing the condition of punching of traditional dustproof subassembly, is favorable to improving the user quality of punching, and the user can see through the dust cover 10 and observe the progress of punching of drill bit 13 to the wall body promptly, and convenience of customers judges the progress of punching. The dust cover 10 and the buffer sleeve 11 are annular, the annular plane of the buffer sleeve 11 is fixedly connected with the annular plane of the dust cover 10, the buffer sleeve 11 is a rubber buffer sleeve, an annular cavity is formed in the buffer sleeve 11, gas is filled in the annular cavity, the cross section of the annular cavity is trapezoid, and the electric drill and the connector 15 are stable when the electric drill is used for carrying out inclined plane horizontal punching operation by a user through arranging the cavity in the buffer sleeve 11 and filling the gas, so that the inclined plane punching operation is more convenient for the user.

Dust that dust cover 10 can produce the punching to the dust pollution indoor environment's of punching problem has been solved, make the operation of punching clean, harm greatly reduced to user's health, be favorable to improving user's operational environment quality, be provided with the through-channel of opening downwardly in the dust cover 10, through-channel both sides curved surface symmetry be provided with dust cover 10 inner wall sliding connection's slide damper 20, two slide damper 20 closes the through-channel opening after the combination, slide damper 20 is close to the one end of rotating cylinder 14 and extends to in the rotating cylinder 14, and the path that slide damper 20 sweeps forms the spout, be provided with the inflation expansion tube 23 that the curvature is the same with dust cover 10 curved surface curvature in the spout, the both ends of inflation expansion tube 23 are fixed respectively in the slide damper 20, the volume grow after the inflation expansion tube 23, make two slide damper 20 in the dust cover 10 with the direction of keeping away from each other, thereby make the through-channel open in order to realize automatic dust discharging, dust discharging tube 22 with rotating cylinder 14's below fixed mounting and through-channel intercommunication, dust discharging tube 22 is kept away from the one end of dust discharging tube 10 and is connected with collecting device.

The rotary cylinder 14 is hollow circular ring-shaped and is fixedly connected with one end of the dust cover 10, which is far away from the buffer sleeve 11, the connector 15 is axially and slidably connected with the connecting cylinder 12, a part of the connecting cylinder 12 is inserted into the connector 15, a sliding passage way is a buffer groove, an elastic component a is arranged in the buffer groove, the elastic component a comprises a sealing rubber layer 40 and a buffer spring 41, the buffer spring 41 is arranged in the buffer groove, two ends of the buffer spring 41 are respectively abutted with the connecting cylinder 12 and the connector 15, the sealing rubber layer 40 surrounds the outer side of the buffer spring 41, an air duct 21 is arranged in the air inflation tube 23 in a communicating manner, a space formed by surrounding the buffer spring 41 by the sealing rubber layer 40 is isolated from the outside, and one end of the air duct 21, which is far away from the air inflation tube 23, penetrates through a central gap of the rotary cylinder 14 to extend into the connector 15 and is communicated with a space formed by surrounding the buffer spring 41 by the sealing rubber layer 40.

The drill bit 13 penetrates through the axis of the connector 15 and is fixed, and the tip of the drill bit 13 sequentially penetrates through the axes of the rotary cylinder 14, the dust cover 10 and the buffer sleeve 11 to extend to one side, far away from the dust cover 10, of the buffer sleeve 11; the connecting cylinder 12 is arranged on one side of the rotating cylinder 14 far away from the dust cover 10, the connecting rod 30 is symmetrically arranged on one side of the connecting cylinder 12 close to the rotating cylinder 14 relative to the drill bit 13, the sliding adjusting groove 34 is symmetrically arranged on one side of the rotating cylinder 14 facing the connecting cylinder 12 relative to the drill bit 13, the opening of the sliding adjusting groove 34 faces the connecting cylinder 12, and one end of the connecting rod 30 far away from the connecting cylinder 12 is slidably arranged in the sliding adjusting groove 34; the adjusting component b is connected with one end of the connecting rod 30 in the connecting cylinder 12, the adjusting component b is used for adjusting the relative distance between the rotating cylinder 14 and the connecting cylinder 12, the adjusting component b comprises a handle 32 and a threaded rod 33, the threaded rod 33 is rotationally arranged on one side end face of the connecting cylinder 12 far away from the rotating cylinder 14, the threaded rod 33 extends into the connecting cylinder 12 and is in threaded connection with the connecting rod 30, the handle 32 is fixed at one end of the threaded rod 33 far away from the connecting rod 30, a friction layer 31 is fixedly arranged at one side end of the sliding adjusting groove 34 far away from the opening, and the friction force of the friction layer 31 contacted with the connecting rod 30 is larger than that between the connecting rod 30 and the rotating cylinder 14. Through setting up slide adjustment groove 34, make the user even change the deflection angle of electric drill handle, be located the vertical orientation ground all the time of through channel on dust cover 10, dust removal efficiency has been improved, need not manual regulation simultaneously, user's drilling efficiency has been improved, simultaneously through adjusting component b can wear out the length from buffer cover 11 through adjusting bit 13, satisfy the different drilling demands to ground and wall, make the diversified use of single electric drill connector, the connector dismouting number of times has been reduced, satisfy the diversified demand of drill bit.

When the electric drill is not in use, the pair of sliding baffles 20 are completely closed to seal the opening of the through passage, the buffer spring 41 is not compressed, the inflatable expansion pipe 23 is not inflated, the inflatable expansion pipe 23 is stacked in the sliding baffles 20, the connecting rod 30 is not tightly attached to the friction layer 31, a gap exists between the rotating cylinder 14 and the connecting cylinder 12, and the connector 15 is connected with the electric drill. When the electric drill is used, the drill bit 13 with the proper diameter is firstly selected, inserted into the connector 15 for clamping, then the electric drill is electrified, and the punching end of the drill bit 13 is positioned outside the buffer sleeve 11.

When a user punches a vertical wall, the user can directly observe the position between the drill bit 13 and the punching position, after aligning the drill bit 13 with the punching position, the handle 32 is manually rotated in the positive direction, the handle 32 drives the threaded rod 33 to rotate, so that the connecting rod 30 moves away from the connecting cylinder 12, the rotating cylinder 14, the dust cover 10 and the buffer sleeve 11 move away from the connecting cylinder 12, at the moment, the buffer sleeve 11 is gradually tightly attached to the wall, after the buffer sleeve 11 is tightly attached to the wall, the connecting rod 30 is tightly attached to the friction layer 31 under pressure, at the moment, the rotating cylinder 14 cannot rotate relative to the connecting rod 30 or the connecting cylinder 12, the handle 32 is stopped to rotate, at the moment, the electric drill is started, the drill drives the drill bit 13 to rotate at a high speed to punch the wall, at the same time, the electric drill is manually pressed by the electric drill, at the moment, the connecting head 15 moves towards the direction close to the wall, simultaneously, the drill bit 13 is driven to move towards the direction close to the wall surface, so that the drill bit 13 further deepens the punching depth of the wall surface, meanwhile, the buffer spring 41 is compressed due to the movement of the connector 15 towards the direction close to the wall surface relative to the connecting cylinder 12, so that the sealing rubber layer 40 is extruded, the gas in the space formed by the sealing rubber layer 40 is transmitted into the inflation expansion pipe 23 through the gas guide pipe 21, the inflation expansion pipe 23 is ventilated, the inflation expansion pipe 23 is expanded along the same curvature of the dust cover 10, the two sliding baffles 20 slide in the dust cover 10 in the directions far away from each other, so that the penetrating channel is opened, the dust exhaust pipe 22 is communicated with the inner space of the dust cover 10, at the moment, after the dust generated by punching enters the inner space of the dust cover 10, the temperature of the dust cover 10 is gradually increased due to the gradual increase of the temperature of the drill bit 13 in the continuous punching process, the temperature difference is generated between the dust cover 10 and the outside, so that the air pressure difference is generated between the inside and the outside of the dust cover 10, dust in the dust cover 10 is transmitted to the external collecting device through the dust discharging pipe 22 at a higher speed along with the air, and when the air in the dust cover 10 is reduced, the external air can enter the dust cover 10 through the opening of the rotating cylinder 14, and the dust moves downwards in a direction similar to a parabola after entering the dust cover 10 due to the gravity of the dust and the like, so that the dust cannot diffuse to the external space through the opening of the rotating cylinder 14.

When the user punches the inclined wall in a mode parallel to the ground, at this moment, after the buffer sleeve 11 abuts against the inclined wall, the side, which is close to the straight line connecting the buffer sleeve 11 and the wall, is compressed at first and the compression degree is larger, and because the buffer sleeve 11 is filled with gas, the gas flows to the side, which is far away from the straight line connecting the buffer sleeve 11 and the inclined wall, of the buffer sleeve 11, so that the buffer sleeve 11 expands and abuts against the inclined surface, and at this moment, the buffer sleeve 11 is completely abutted against the inclined surface, so that the stability of the electric drill in punching the inclined surface is improved.

When the user punches the ground in a manner perpendicular to the ground, since the punching mode does not need to perform dust-proof operation, dust generated by punching is accumulated in the hole, and therefore, the handle 32 is manually rotated in the opposite direction to move the rotary cylinder 14 in the direction of the connecting cylinder 12, so that the length of the portion of the drill bit 13 passing through the buffer sleeve 11 is increased, and then the dust discharge pipe 22 is detached, so that the ground can be punched by using a conventional operation means.

When a user performs punching operation on a wall, the position of the through passage can be influenced due to different methods of holding the electric drill by the user and different inclination angles of the handle part of the electric drill relative to the ground, but the connecting rod 30 and the rotating cylinder 14 can rotate relatively, and the weight of the connecting rod is larger than that of the dust cover 10 and the rest part of the rotating cylinder 14 due to the sliding baffle 20 which exists in the through passage part, so that when the inclination angle of the handle part of the electric drill held by the user changes, the rotating cylinder 14 rotates relative to the connecting rod 30 under the action of gravity, the sliding baffle 20 and the through passage part always vertically downwards, so that the position of the connecting rod is not required to be manually adjusted by the user, and the electric drill is convenient for the user to use.

It will be appreciated that although the invention has been described above in terms of preferred embodiments, the above embodiments are not intended to limit the invention. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art without departing from the scope of the technology, or the technology can be modified to be equivalent. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a dustproof electric drill of dust removal, including electric drill organism and drill bit mechanism, drill bit mechanism includes drill bit, dust cover, rotation section of thick bamboo, connecting tube and connector that coaxial setting, its characterized in that, rotation section of thick bamboo and dust cover fixed connection, connecting tube set up in rotation section of thick bamboo keep away from the one side of dust cover, and connect through connecting rod and adjusting part between connection section of thick bamboo, the connector sets up in connecting tube keep away from one side of rotation section of thick bamboo and with connecting tube axial sliding connection, be equipped with elastic part between connector and the connecting tube, the drill bit runs through fixedly from the connector axle center, be provided with the downward through-channel of opening in the dust cover, through-channel both sides curved surface symmetry is provided with two sliding baffle with dust cover inner wall sliding connection, will be run through the channel opening and seal after two sliding baffle combination;

one end of the sliding baffle, which is close to the rotating cylinder, extends into the rotating cylinder, a path swept by the sliding baffle forms a sliding groove, an inflation expansion pipe with the curvature identical to that of the curved surface of the dust cover is arranged in the sliding groove, and two ends of the inflation expansion pipe are respectively fixedly inserted into the sliding baffle;

the volume of the inflated expansion pipe is increased after inflation, so that the two sliding baffles slide in the dust cover in a direction away from each other, and the through channel is opened;

the elastic assembly comprises a sealing rubber layer and a buffer spring, and one end of the air duct, which is far away from the inflation tube, passes through a central gap of the rotating cylinder, extends into the connector and is communicated with a space formed by surrounding the buffer spring by the sealing rubber layer;

the buffer spring is arranged between the connector and the connecting cylinder, two ends of the buffer spring are respectively abutted with the connecting cylinder and the connector, the sealing rubber layer surrounds the outer side of the buffer spring, and the space formed by the buffer spring is isolated from the outside.

2. The electric drill of claim 1, wherein the side of the rotary barrel facing the connecting barrel is symmetrically provided with sliding adjusting grooves about the drill bit, the opening of the sliding adjusting grooves faces the connecting barrel, and the end of the connecting rod, which is far away from the connecting barrel, is slidably arranged in the sliding adjusting grooves.

3. A dust and dust drill according to claim 2 wherein the side of the sliding adjustment slot remote from the opening is fixedly provided with a friction layer.

4. A dust and dust drill according to claim 3 wherein the friction layer contacts the connecting rod with a greater friction than the connecting rod and the rotating barrel.

5. A dust and dust drill according to claim 3 wherein the adjustment assembly comprises a handle and a threaded rod rotatably disposed on an end face of the connecting barrel on a side thereof remote from the rotatable barrel, the threaded rod extending into the connecting barrel for threaded connection with the connecting rod, the handle being secured to the threaded rod at an end thereof remote from the connecting rod.

6. A dust and dust drill according to claim 1 wherein a dust duct is fixedly mounted below the dust cap and the rotatable barrel and communicates with the through passage.