CN219310158U - Drill bit capable of expanding aperture - Google Patents

Abstract

The application belongs to the technical field of drill bits, and discloses a drill bit capable of expanding the aperture, which comprises an annular frame, wherein a drilling mechanism is arranged in the annular frame and extends to the outer side of the annular frame; the drill bit capable of expanding the aperture has the beneficial effects that: according to the size of the diameter of punching, the handle is rotated to enable the rotating rod to drive the fluted disc to rotate, the fluted disc is matched with the four gears to enable the four gears to drive the four threaded rods to rotate, the conical block and the drill bit are driven to move up and down through the connecting plate, when the bottom of the anti-skid rubber cushion and the diameter of the corresponding conical cross section are in a horizontal state, the motor is started to drive the conical block and the drill bit to rotate at a high speed, and the cutting edges are fixedly sleeved on the outer sides of the conical block and distributed in an annular shape, so that the drilling efficiency is higher.

Description

Drill bit capable of expanding aperture

Technical Field

The present application relates to the field of drill bits, and more particularly, to a drill bit capable of expanding a hole diameter.

Background

The electric drill is a drilling machine using electricity as power, is a conventional product in electric tools, and is also an electric tool product with the largest demand.

Through retrieving disclosure (bulletin) number CN209935940U, a round hole reaming bit is disclosed, including drill bit body and aperture limiting plate, be equipped with the cutting edge on the drill bit body, the diameter of drill bit body is along its axial crescent, the drill bit body is equipped with the confession along its axial the location district of aperture limiting plate adjustment position, and this application is in the use, because adjust the structure wholly and not firm enough for the device receives the damage very easily, thereby can make drilling efficiency reduce.

In order to solve the above problems, the present application provides a drill bit capable of expanding a hole diameter.

Disclosure of Invention

The application provides a drill bit that can expand aperture adopts following technical scheme:

the drill bit capable of expanding the aperture comprises an annular frame, wherein a drilling mechanism is arranged in the annular frame and extends to the outer side of the annular frame;

drilling mechanism includes four threaded rods, four the threaded rod is all inlayed and is established in annular frame top inboard, four the threaded rod is circumference form evenly distributed, four threaded rod outer wall spiro union has the connecting plate, connecting plate bottom fixedly connected with toper piece, the fixed cutting edge that has cup jointed in toper piece outside, the cutting edge is the heliciform and distributes, toper piece bottom fixedly connected with drill bit, connecting plate top fixedly connected with motor, motor output shaft fixedly connected with roller bearing, the roller bearing bottom extends to inside the connecting plate and with toper piece fixed connection, four the threaded rod bottom is equipped with drive assembly.

Further, four the outside cover of threaded rod is equipped with the roof, four threaded rod and roof and annular frame junction all pass through bearing swing joint, roller bearing and connecting plate junction pass through bearing swing joint, annular frame bottom fixedly connected with anti-skidding rubber cushion.

Through above-mentioned technical scheme, through setting up anti-skidding rubber cushion, both can strengthen the frictional force between connecting plate and the wall body for the device can be stable when using, can alleviate the collision force that the connecting plate produced when meeting with powerful department again.

Further, the transmission part comprises four gears, the four gears are fixedly sleeved on the outer sides of the four threaded rods respectively, and the four gears are all positioned at the top of the top plate.

Through above-mentioned technical scheme, through setting up four gears, can make four threaded rods carry out the syntropy simultaneously and rotate.

Further, four the inside meshing of gear has the fluted disc, the fixed dwang that inlays in the fluted disc is inside, dwang top fixedly connected with handle, arc wall has been seted up to handle one side.

Through the technical scheme, the handle can be conveniently rotated by a user through the arc-shaped groove.

Furthermore, the protection cover is fixedly sleeved on the outer side of the top plate, the protection cover is sleeved on the outer side of the rotating rod, and the connection part of the protection cover and the rotating rod is movably connected through a bearing.

Through above-mentioned technical scheme, through setting up the protection casing, can enough protect four gears and fluted disc, can avoid four gears and fluted disc to expose outside for a large amount of dust is piled up in the outside because of the long-term again.

Further, the top of the protective cover is fixedly connected with a handle, and the handle is semi-arc-shaped.

Through above-mentioned technical scheme, through setting the handle to half arcuation, can improve the comfort level when the user takes the device.

Furthermore, a through groove is formed in the handle, and a protection soft cushion is fixedly connected to the top of the handle.

Through above-mentioned technical scheme, through setting up the protection pad, the convenience when can be convenient for strengthen the device and use.

In summary, the present application includes at least one of the following beneficial technical effects:

according to the size of the diameter of punching, the handle is rotated to enable the rotating rod to drive the fluted disc to rotate, the fluted disc is matched with the four gears to enable the four gears to drive the four threaded rods to rotate, the conical block and the drill bit are driven to move up and down through the connecting plate, when the bottom of the anti-skid rubber cushion and the diameter of the corresponding conical cross section are in a horizontal state, the motor is started to drive the conical block and the drill bit to rotate at a high speed, and the cutting edges are fixedly sleeved on the outer sides of the conical block and distributed in an annular shape, so that the drilling efficiency is higher.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a perspective view of one end of the motor of the present application;

fig. 3 is a partial perspective view of the present application.

The reference numerals in the figures illustrate:

1. an annular frame; 2. a threaded rod; 3. a connecting plate; 4. a conical block; 5. a blade; 6. a drill bit; 7. a motor; 8. a roller; 9. a top plate; 10. a gear; 11. fluted disc; 12. a rotating lever; 13. a handle; 14. a protective cover; 15. a handle; 16. a protective cushion; 17. an anti-skid rubber cushion.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Examples:

the embodiment of the application discloses a drill bit capable of expanding the aperture, referring to fig. 1, 2 and 3, comprising an annular frame 1, wherein a drilling mechanism is arranged in the annular frame 1 and extends to the outer side of the annular frame 1;

the drilling mechanism comprises four threaded rods 2, the four threaded rods 2 are embedded in the inner side of the top of the annular frame 1, the four threaded rods 2 are uniformly distributed in a circumferential shape, the outer walls of the four threaded rods 2 are in threaded connection with a connecting plate 3, the bottom of the connecting plate 3 is fixedly connected with a conical block 4, the outer side of the conical block 4 is fixedly sleeved with a cutting edge 5, the cutting edge 5 is spirally distributed, the bottom of the conical block 4 is fixedly connected with a drill bit 6, the top of the connecting plate 3 is fixedly connected with a motor 7, an output shaft of the motor 7 is fixedly connected with a rolling shaft 8, and the bottom end of the rolling shaft 8 extends into the connecting plate 3 and is fixedly connected with the conical block 4;

referring to fig. 1, top plates 9 are sleeved on the outer sides of four threaded rods 2, the joints of the four threaded rods 2, the top plates 9 and the annular frame 1 are movably connected through bearings, the joints of the rolling shafts 8 and the connecting plates 3 are movably connected through bearings, the bottoms of the annular frames 1 are fixedly connected with anti-slip rubber cushions 17, and by arranging the anti-slip rubber cushions 17, the friction force between the connecting plates 3 and a wall body can be enhanced, so that the device can be stable when in use, the working efficiency of the device is improved, and the collision force generated when the connecting plates 3 are strongly connected can be lightened;

referring to fig. 2, a transmission part is arranged at the bottom of the four threaded rods 2, the transmission part comprises four gears 10, the four gears 10 are fixedly sleeved on the outer sides of the four threaded rods 2 respectively, the four gears 10 are positioned at the top of the top plate 9, fluted discs 11 are meshed with the inner sides of the four gears 10, rotating rods 12 are fixedly embedded in the fluted discs 11, the top ends of the rotating rods 12 are fixedly connected with handles 13, one sides of the handles 13 are provided with arc-shaped grooves, and a user can conveniently rotate the handles 13 by arranging the arc-shaped grooves;

referring to fig. 1 and 3, a protection cover 14 is fixedly sleeved on the outer side of the top plate 9, the protection cover 14 is sleeved on the outer side of the rotating rod 12, the connection part of the protection cover 14 and the rotating rod 12 is movably connected through a bearing, through the arrangement of the protection cover 14, the four gears 10 and the fluted disc 11 can be protected, the structure is prevented from being damaged due to external impact, the four gears 10 and the fluted disc 11 can be prevented from being exposed for a long time, a large amount of dust is accumulated on the outer side, the top of the protection cover 14 is fixedly connected with a handle 15, the handle 15 is in a half-arc shape, a through groove is formed in the handle 15, and a protection cushion 16 is fixedly connected to the top of the handle 15;

the implementation principle of the embodiment of the application is as follows: the device can be taken to a designated position by a user through the handle 15, then the rotating rod 12 is rotated by rotating the handle 13 according to the size of the punching diameter, the fluted disc 11 is driven by the rotating rod 12 to rotate, the fluted disc 11 is matched with the four gears 10, the four gears 10 rotate, the rotation directions are the same, then the four gears 10 drive the four threaded rods 2 to rotate, the four threaded rods 2 are matched with the connecting plate 3, the limiting purpose of the connecting plate 3 is achieved, the connecting plate 3 can drive the conical block 4 and the drill bit 6 to move up and down through the rolling shaft 8, when the bottom of the anti-skid rubber cushion 17 and the corresponding diameter of the conical cross section are in a horizontal state, the rotating handle 13 can be stopped, then the motor 7 is started, the conical block 4 and the drill bit 6 are driven to rotate at a high speed through the rolling shaft 8, the outer side of the conical block 4 is fixedly sleeved with the cutting edge 5 and distributed in a ring shape, so that the efficiency of the hole reaming efficiency is higher.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (7)

1. Drill bit capable of expanding aperture, comprising an annular frame (1), characterized in that: a drilling mechanism is arranged in the annular frame (1), and extends to the outer side of the annular frame (1);

drilling mechanism includes four threaded rods (2), four threaded rods (2) are all inlayed and are established in annular frame (1) top inboard, four threaded rods (2) are circumference form evenly distributed, four threaded rods (2) outer wall spiro union has connecting plate (3), connecting plate (3) bottom fixedly connected with toper piece (4), toper piece (4) outside has fixedly cup jointed cutting edge (5), cutting edge (5) are heliciform distribution, toper piece (4) bottom fixedly connected with drill bit (6), connecting plate (3) top fixedly connected with motor (7), motor (7) output shaft fixedly connected with roller bearing (8), roller bearing (8) bottom extends to connecting plate (3) inside and with toper piece (4) fixedly connected with, four threaded rods (2) bottom is equipped with drive assembly.

2. A drill bit capable of expanding an aperture as recited in claim 1, wherein: four threaded rods (2) are sleeved with a top plate (9) at the outer sides, the four threaded rods (2) are movably connected with the connecting positions of the top plate (9) and the annular frame (1) through bearings, the connecting positions of the rolling shafts (8) and the connecting plates (3) are movably connected through bearings, and anti-slip rubber cushions (17) are fixedly connected with the bottoms of the annular frames (1).

3. A drill bit capable of expanding an aperture as recited in claim 1, wherein: the transmission part comprises four gears (10), the four gears (10) are fixedly sleeved on the outer sides of the four threaded rods (2) respectively, and the four gears (10) are all positioned at the top of the top plate (9).

4. A drill bit capable of expanding a bore diameter as recited in claim 3, wherein: the four gears (10) are internally meshed with fluted discs (11), rotating rods (12) are fixedly embedded in the fluted discs (11), handles (13) are fixedly connected to the top ends of the rotating rods (12), and arc-shaped grooves are formed in one sides of the handles (13).

5. A drill bit capable of expanding an aperture as recited in claim 2, wherein: the protection casing (14) has been cup jointed fixedly in roof (9) top outside, protection casing (14) cover is established in dwang (12) outside, protection casing (14) are through bearing swing joint with dwang (12) junction.

6. A drill bit capable of expanding a bore as recited in claim 5, wherein: the top of the protective cover (14) is fixedly connected with a handle (15), and the handle (15) is in a semi-arc shape.

7. A drill bit capable of expanding a bore diameter as recited in claim 6, wherein: the inside of handle (15) is seted up logical groove, protection cushion (16) are connected with in handle (15) top fixed connection.

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