CN211306150U - Self-tapping screw drill - Google Patents

Abstract

The utility model discloses a self tapping screw bores, including the auger body, the internally mounted of auger body has the biax motor, the output shaft end coaxial coupling of biax motor has front axle and rear axle, the front axle is worn out and its end fixing has the drill bit to press from both sides from the auger body is internal, detachable installs the auger bit on the drill bit clamp, bottom one side integrated into one piece of auger body has the handle, the battery base is installed to the bottom of handle, be provided with the recess that charges on the outer wall of battery base, one side of the recess that charges articulates through the hinge has the shield, one side screw cap lid of handle is kept away from to the bottom of auger body, the drill bit box is installed to the bottom detachable of screw cap lid. The utility model discloses, have the function of storage screw drill bit, can deposit the screw drill bit of various models, be convenient for change the use when attacking the dress to the screw of difference, also reduced simultaneously because of the drill bit is in disorder to lose the condition of putting the disappearance.

Description

Self-tapping screw drill

Technical Field

The utility model relates to a dress instrument technical field is attacked to the screw specifically is a self tapping screw bores.

Background

The self-tapping screw drill is a screw tapping tool for driving a screw to force the screw to be in place, and mainly comprises a machine shell, a handle, a battery base, a motor and a drill bit clamp driven by the motor, wherein the drill bit clamp is used for fixing a screw drill bit, when the self-tapping screw drill is used, the handle is held, the end head of the screw drill bit is vertically aligned to a groove in the shape of the Chinese character 'yi' or the Chinese character 'ji' on a screw head, the screw drill is started and pressed downwards, and the motor drives the screw drill bit to screw the screw so as to screw the screw into a workpiece. The device has small volume and high working efficiency, and is widely applied to various industrial fields. But current self tapping screw bores, the radiating effect is poor, the during operation noise is big, the installation of screw drill bit is comparatively loaded down with changing, and its screw drill bit and organism are separately deposited mostly, the screw drill bit is not only lost because of indiscriminate putting easily, still need take time to go to look for when changing the drill bit moreover, the operation of using for people brings a great deal of inconvenience, and simultaneously, charging socket on its battery base is mostly exposed outside, it causes charging socket contact failure or damage to get into impurity such as dust easily, current self tapping screw bores in addition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self tapping screw bores possesses the storage screw drill bit, and the installation of screw drill bit and the advantage of dismantling convenient etc. have solved current self tapping screw bores, and its screw drill bit and organism are separately depositing mostly, and the screw drill bit is not only lost because of putting in disorder easily, still need take the time to go the problem of seeking etc. moreover when trading the drill bit.

In order to achieve the above object, the utility model provides a following technical scheme: a self-tapping screw drill comprises a screw drill body, wherein a double-shaft motor is installed inside the screw drill body, a front shaft and a rear shaft are respectively fixed at two output shaft ends of the double-shaft motor, a rotary disc is fixed at the end part of the rear shaft, fan-shaped fan blades distributed in equal radian are arranged on the rotary disc along the outer circumferential wall of the rotary disc, heat dissipation holes are formed in the outer wall, close to the fan-shaped fan blades, of the screw drill body, the front shaft penetrates out of the screw drill body, a drill bit clamp is fixed at the end part of the front shaft, screw drill bits are detachably installed on the drill bit clamp, arc clamping blocks which are symmetrical to each other are arranged on two inner sides of the drill bit clamp, the arc clamping blocks are connected with the drill bit clamp through springs, a thread adjusting rod penetrates through the outer wall of the drill bit clamp, a pressing block is fixed at one end, close to the arc clamping blocks, of the thread adjusting rod, the improved screwdriver is characterized in that the handle is sleeved with a rubber handle sleeve, the outer surface of the rubber handle sleeve is provided with anti-skidding convex points which are evenly distributed, a battery base is installed at the bottom end of the handle, a rechargeable battery is fixed inside the battery base, a charging groove is formed in the outer wall of the battery base, a charging socket is arranged in the charging groove, one side of the charging groove is hinged to a dustproof cover through a hinge, sealing rubber strips are arranged on the periphery of one side, facing the charging groove, of the dustproof cover, one side of the threaded head cover is far away from the bottom of the screwdriver body, the bottom end of the threaded head cover is detachably installed with a screwdriver box, a placing plate is fixed in the middle of the inner cavity of the screwdriver box, and a placing opening which is mutually.

Preferably, place the mouth and be equipped with four on shelving the board altogether, four place the mouth and respectively place the screw drill bit that the bottom is "one" word or "ten" style of calligraphy in, the location notch has all been seted up to the top both sides of every screw drill bit, the arc clamp splice deviates from the one side of briquetting and is fixed with the location arch with location notch looks adaptation.

Preferably, the periphery of the double-shaft motor is circumferentially provided with sound-absorbing cotton layers fixed in the screwdriver body, and a sound-insulating damping felt layer is arranged between the sound-absorbing cotton layers and the inner wall of the screwdriver body.

Preferably, the drill bit box is the hollow form of cylinder, the top integrated into one piece of drill bit box has the screw thread ring, be equipped with the internal thread on the inner wall of screw thread ring, be equipped with the external screw thread on the outer wall of screw thread skull, screw thread skull threaded connection is in the screw thread ring.

Preferably, a clamping hole is formed in one side of the charging groove, and a clamping tongue clamped with the clamping hole is arranged at the position, corresponding to the clamping hole, of the dustproof cover.

Preferably, the charging sockets are three in number, and the three charging sockets are electrically connected with the double-shaft motor uniform charging battery.

Compared with the prior art, the beneficial effects of the utility model are as follows:

one, the utility model discloses a drill bit box that sets up, put the board and place the mouth for this screw drilling tool has the function of storing the screw drill bit, can deposit the screw drill bit of various models, be convenient for change the use when attacking the dress to the screw of difference, also reduced simultaneously because of the indiscriminate condition of losing of putting of losing of drill bit, and the drill bit box passes through threaded ring and screw thread cover threaded connection on this screw drill, adopt this kind of threaded connection's mode, the installation and the dismantlement of the drill bit box of being convenient for, it is more convenient to get and put the screw drill bit.

Two, the utility model discloses a articulated shield on the recess that charges, when not needing to charge for rechargeable battery at ordinary times, usable shield covers the recess that charges, make charging socket seal in charging the recess, can prevent like this that impurity such as dust from entering into charging socket in, charge to the screw and cause bad influence, and through the cotton layer of sound absorption and the damping layer that gives sound insulation that sets up, make this screw drilling tool have the function of making an uproar of falling, can the effectual noise that produces of its inside motor operation in-process of reduction screw drilling during operation, the influence that the noise produced to the surrounding environment has been reduced.

Three, the utility model discloses a threaded regulation pole that sets up, the compact heap, spring and arc clamp splice, during the installation screw drill bit, rotatory threaded regulation pole, can make the direction motion of compact heap orientation arc clamp splice, compact heap extrusion arc clamp splice, the spring atress is elongated simultaneously, thereby press from both sides the fastening and fix in the drill chuck with the screw drill bit, when dismantling the screw drill bit, rotatory threaded regulation pole in the opposite direction again makes the compact heap keep away from the arc clamp splice, spring elasticity resumes and drives the arc clamp splice and breaks away from the screw drill bit, thereby the convenience is pulled down the screw drill bit, it is convenient with dismantling screw drill bit's installation, time saving, excellent in use effect.

Drawings

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

FIG. 2 is a schematic view of the structure of the drill bit case of the present invention;

FIG. 3 is a cross-sectional view of the drill bit case of the present invention;

FIG. 4 is a cross-sectional view of a drill bit holder of the present invention;

fig. 5 is a schematic structural view of a battery base of the present invention;

fig. 6 is a schematic view of the rear axle structure of the present invention.

In the figure: 1. a screw drill body; 2. a grip; 3. a double-shaft motor; 4. a bit holder; 5. a screw drill bit; 6. a battery base; 7. a screw head cover; 8. a bit box; 9. a front axle; 10. a rear axle; 11. a sound absorbing cotton layer; 12. a sound-insulating damping felt layer; 13. a rubber handle sleeve; 14. anti-skid bumps; 15. a rechargeable battery; 16. heat dissipation holes; 17. A shelf board; 18. a placement port; 19. a threaded ring; 20. a positioning notch; 21. positioning the projection; 22. an arc-shaped clamping block; 23. a spring; 24. a threaded adjusting rod; 25. a compression block; 26. a charging groove; 27. a charging jack; 28. a dust cover; 29. sealing rubber strips; 30. a latch; 31. a clamping hole; 32. a turntable; 33. fan-shaped fan blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a self-tapping screw drill comprises a screw drill body 1, a double-shaft motor 3 is installed inside the screw drill body 1, a front shaft 9 and a rear shaft 10 are respectively fixed at two output shaft ends of the double-shaft motor 3, a rotary table 32 is fixed at the end part of the rear shaft 10, fan-shaped fan blades 33 distributed in an equal radian are arranged on the rotary table 32 along the outer circumferential wall of the rotary table, heat dissipation holes 16 are formed in the outer wall, close to the fan-shaped fan blades 33, of the screw drill body 1, the front shaft 9 penetrates out of the screw drill body 1, a drill bit clamp 4 is fixed at the end part of the front shaft 9, a screw drill bit 5 is detachably installed on the drill bit clamp 4, when the screw drill bit is used, the double-shaft motor 3 drives the rotary table 32 and the fan-shaped fan blades 33 on the rotary table 32 to rotate through the rear shaft 10, when the fan blades 33 rotate, peripheral air flow is accelerated, heat generated when the double-shaft motor 3 works is discharged through the heat dissipation, the arc-shaped clamping block 22 is connected with the drill chuck 4 through a spring 23, a thread adjusting rod 24 penetrates through the outer wall of the drill chuck 4, a pressing block 25 is fixed at one end, close to the arc-shaped clamping block 22, of the thread adjusting rod 24, when the screw drill bit 5 is installed, the thread adjusting rod 24 is rotated, the pressing block 25 can move towards the arc-shaped clamping block 22, the pressing block 25 presses the arc-shaped clamping block 22, meanwhile, the spring 23 is stressed to stretch, so that the screw drill bit 5 is clamped and fixed in the drill chuck 4, when the screw drill bit 5 is disassembled, the thread adjusting rod 24 is rotated in the opposite direction, the pressing block 25 is far away from the arc-shaped clamping block 22, the spring 23 elastically recovers and drives the arc-shaped clamping block 22 to be separated from the screw drill bit 5, the screw drill bit 5 is conveniently disassembled, the installation and the disassembly of the screw drill bit 5 are convenient and convenient, time-saving, the use effect is good, the handle 2 is sleeved with a rubber handle sleeve 13, the outer surface of the rubber handle sleeve 13 is provided with anti-skid convex points 14 which are uniformly distributed, the anti-skid convex points 14 can increase the friction force between a user holding the handle 2 and the handle 2, so that the user can hold the handle more firmly, the risk of handle falling off in the use process is reduced, the bottom end of the handle 2 is provided with a battery base 6, a rechargeable battery 15 is fixed in the battery base 6, the outer wall of the battery base 6 is provided with a charging groove 26, a charging socket 27 is arranged in the charging groove 26, one side of the charging groove 26 is hinged with a dustproof cover 28 through a hinge, the periphery of one side of the dustproof cover 28 facing the charging groove 26 is provided with a sealing rubber strip 29, when the rechargeable battery 15 is not required to be charged at ordinary times, the dustproof cover 28 can cover the charging groove 26, so that the charging socket 27 is sealed in the charging groove 26, thus preventing, charging to the auger and causing bad influence, one side screw thread skull 7 of handle 2 is kept away from to the bottom of auger body 1, drill bit box 8 is installed to the bottom detachable of screw thread skull 7, the inner chamber middle part of drill bit box 8 is fixed with shelves board 17, shelve and set up mutually independent on the board 17 and place mouth 18, the setting of drill bit box 8, make this auger tool have the function of storing auger bit 5, can deposit the auger bit 5 of various models, be convenient for change the use when attacking the dress to the screw of difference, the condition of losing because of the drill bit is lost in disorder has also been reduced simultaneously.

Four placing openings 18 are formed in the placing plate 17, four screw drill bits 5 with the bottom in a straight shape or a cross shape are respectively placed in the four placing openings 18, positioning notches 20 are formed in two sides of the top end of each screw drill bit 5, positioning protrusions 21 matched with the positioning notches 20 are fixed on one side, away from the pressing block, of each arc-shaped clamping block 22, sound-absorbing cotton layers 11 fixed in the screw drill body 1 are distributed around the double-shaft motor 3 in a surrounding mode, sound-insulating damping felt layers 12 are arranged between the sound-absorbing cotton layers 11 and the inner wall of the screw drill body 1, the sound-absorbing cotton layers 11 and the sound-insulating damping layers are arranged, so that the screw drill has a noise reduction function, noise generated in the operation process of an internal motor during the operation of the screw drill can be effectively reduced, the influence of the noise on the surrounding environment is reduced, the drill bit box 8 is cylindrical and hollow, and a threaded ring 19 is integrally formed at the top end, the inner wall of the threaded ring 19 is provided with internal threads, the outer wall of the threaded head cover 7 is provided with external threads, the threaded head cover 7 is in threaded connection with the threaded ring 19, the installation and the disassembly of the drill bit box 8 are facilitated by adopting the threaded connection mode, the taking and the placing of the screw drill bit 5 are more convenient, the drill bit box 8 is in a cylindrical hollow shape, the top end of the drill bit box 8 is integrally formed with the threaded ring 19, the inner wall of the threaded ring 19 is provided with internal threads, the outer wall of the threaded head cover 7 is provided with external threads, the threaded head cover 7 is in threaded connection with the threaded ring 19, the installation and the disassembly of the drill bit box 8 are facilitated by adopting the threaded connection mode, the taking and the placing of the screw drill bit 5 are more convenient, one side of the charging groove 26 is provided with a clamping hole 31, the position of the dustproof cover 28 corresponding to the clamping hole 31 is provided with a clamping tongue 30 clamped with the clamping, the charging sockets 27 are provided with three charging sockets 27, the three charging sockets 27 are electrically connected with the uniform charging battery 15 of the double-shaft motor 3, the three charging sockets 27 are arranged, and the charging battery 15 is convenient to charge through the other charging sockets 27 when one charging socket 27 is damaged.

The working principle is as follows: when the screw driver is used, firstly, the drill bit box 8 is screwed off from the thread head cover 7, then the required screw drill bit 5 is taken out from the drill bit box 8, then, one end of the screw drill bit 5 with the positioning notch 20 is placed in the drill bit clamp 4, then, the thread adjusting rod 24 is rotated, the thread adjusting rod 24 drives the extrusion block to move towards the direction of the arc-shaped clamping block 22, the extrusion block extrudes the arc-shaped clamping block 22, the spring 23 is stressed to be elongated until the positioning lug on the arc-shaped clamping block 22 is pressed into the positioning notch 20 on the screw drill bit 5, so that the installation of the screw drill bit 5 is completed, at the moment, the screw can be screwed by starting the screw driver, in the process of screwing the screw by using the screw driver, the double-shaft motor 3 drives the screw drill bit 5 to screw the screw driver through the front shaft 9, meanwhile, the double-shaft motor 3 drives the rotary disc 32 and the fan-shaped fan blade 33 on the rotary disc, accelerate the air around flowing, the heat that produces the biax motor 3 during operation is discharged from louvre 16, reach the radiating effect to biax motor 3, in addition, when needs charge to this auger bit, only need with the charging plug on the external power source insert charging socket 27 can, when need not charge, upset shield 28, block in the card hole 31 with card tongue 30 card on the shield 28, make shield 28 fix on charging groove 26, alright make charging socket 27 sealed in charging groove 26, can prevent like this that impurity such as dust from entering into charging socket 27 in, charge to the auger bit and cause bad influence.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a self tapping screw bores, bores body (1) including the screw, its characterized in that: the screw drill comprises a screw drill body (1), a double-shaft motor (3) is installed inside the screw drill body (1), a front shaft (9) and a rear shaft (10) are respectively fixed at two output shaft ends of the double-shaft motor (3), a rotary disc (32) is fixed at the end of the rear shaft (10), fan-shaped fan blades (33) distributed in equal radian are arranged on the peripheral wall of the rotary disc (32) along the peripheral wall of the rotary disc, radiating holes (16) are formed in the outer wall, close to the fan-shaped fan blades (33), of the screw drill body (1), the front shaft (9) penetrates out of the screw drill body (1) and is fixed at the end of the front shaft with a drill bit clamp (4), a screw drill bit (5) is detachably installed on the drill bit clamp (4), arc-shaped clamping blocks (22) which are symmetrical to each other are arranged on two sides of the interior of the drill bit clamp (4), the arc-shaped clamping blocks (22) are connected with the drill bit clamp (4) through springs (, the screw drill comprises a screw thread adjusting rod (24), a pressing block (25) is fixed at one end, close to an arc-shaped clamping block (22), of the screw drill body (1), a handle (2) is integrally formed at one side of the bottom of the screw drill body (1), a rubber handle sleeve (13) is sleeved on the handle (2), anti-skidding convex points (14) which are uniformly distributed are arranged on the outer surface of the rubber handle sleeve (13), a battery base (6) is installed at the bottom end of the handle (2), a rechargeable battery (15) is fixed inside the battery base (6), a charging groove (26) is formed in the outer wall of the battery base (6), a charging socket (27) is arranged in the charging groove (26), a dust cover (28) is hinged to one side of the charging groove (26) through a hinge, sealing rubber strips (29) are arranged around one side, facing the charging groove (26), of the screw thread adjusting rod (24), of one side of the screw drill body (1) far away, the bottom detachable of screw thread skull (7) installs drill box (8), the inner chamber middle part of drill box (8) is fixed with and shelves board (17), it places mouth (18) to set up mutually independent on board (17) to shelve.

2. A self-tapping screw drill as defined in claim 1, wherein: the placing openings (18) are provided with four on the placing plate (17), the four placing openings (18) are internally provided with screw drill bits (5) with the bottoms in the shape of a straight line or a cross, positioning notches (20) are formed in two sides of the top end of each screw drill bit (5), and one surface, deviating from the pressing block, of each arc-shaped clamping block (22) is fixed with positioning protrusions (21) matched with the positioning notches (20).

3. A self-tapping screw drill as defined in claim 1, wherein: the periphery of the double-shaft motor (3) is surrounded and distributed with a sound-absorbing cotton layer (11) fixed in the screwdriver body (1), and a sound-insulating damping felt layer (12) is arranged between the sound-absorbing cotton layer (11) and the inner wall of the screwdriver body (1).

4. A self-tapping screw drill as defined in claim 1, wherein: drill bit box (8) are the hollow form of cylinder, the top integrated into one piece of drill bit box (8) has screw ring (19), be equipped with the internal thread on the inner wall of screw ring (19), be equipped with the external screw thread on the outer wall of screw head lid (7), screw head lid (7) threaded connection is in screw ring (19).

5. A self-tapping screw drill as defined in claim 1, wherein: one side of the charging groove (26) is provided with a clamping hole (31), and a clamping tongue (30) clamped with the clamping hole (31) is arranged at the position of the dustproof cover (28) corresponding to the clamping hole (31).

6. A self-tapping screw drill as defined in claim 1, wherein: the charging sockets (27) are three in number, and the three charging sockets (27) are electrically connected with the uniform charging battery (15) of the double-shaft motor (3).

Images