CN214248198U

CN214248198U - Magnetic suction type telescopic rotary tooth box structure

Info

Publication number: CN214248198U
Application number: CN202120276577.0U
Authority: CN
Inventors: 程香英
Original assignee: Dongguan Shangpin Industrial Co ltd
Current assignee: Dongguan Shangpin Industrial Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-09-21
Anticipated expiration: 2031-02-01

Abstract

The utility model discloses a magnetic suction type telescopic rotary tooth box structure, which comprises an outer barrel body, a telescopic driving mechanism which is arranged at the lower end of the outer barrel body and is used for driving the outer barrel body to move telescopically, a rotary inner barrel which is arranged in the outer barrel body in a rotatable way and a rotary driving mechanism which is used for driving the rotary inner barrel to rotate, wherein a bearing is arranged at the bottom of the inner cavity of the outer barrel body, a rotatable rotary connecting seat is arranged on the bearing, and a lower magnet is fixed at the upper end of the rotary connecting seat; the lower end of the rotary inner cylinder is provided with an upper magnet, and the upper magnet is fixed with the lower magnet in an adsorption manner. The utility model discloses can prevent effectively that this rotatory inner tube from appearing eccentric stability at rotatory in-process, and can guarantee that rotary driving mechanism moves very stably, smoothly, can effectively avoid rocking the problem of big and easy wearing and tearing, can not produce the noise or the noise that produces is minimum to product life can be improved.

Description

Magnetic suction type telescopic rotary tooth box structure

The technical field is as follows:

the utility model relates to a tooth case product technology field refers in particular to a flexible rotatory tooth case structure of formula is inhaled to magnetism.

Background art:

the gearbox is a device for increasing or reducing the speed and torque of rotation by meshing gears with different sizes. Can be divided into a planetary gear box, an upper chain gear box, a phylon inertia gear box and the like, and is widely applied to the fields of electric toothbrushes, shavers, electric toys and the like.

Most of the telescopic rotary tooth boxes in the prior art generally comprise an outer barrel body, a telescopic driving mechanism which is arranged at the lower end of the outer barrel body and used for driving the outer barrel body to telescopically move, and a rotary driving mechanism which is arranged in the outer barrel body in a rotatable mode and used for driving the rotary inner barrel to rotate.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

an object of the utility model is to overcome the not enough of prior art, provide a flexible rotatory tooth case structure of formula is inhaled to magnetism.

In order to solve the technical problem, the utility model discloses a following technical scheme: the magnetic suction type telescopic rotary gearbox structure comprises an outer barrel, a telescopic driving mechanism, a rotary inner barrel and a rotary driving mechanism, wherein the telescopic driving mechanism is arranged at the lower end of the outer barrel and used for driving the outer barrel to move in a telescopic mode; the lower end of the rotary inner cylinder is provided with an upper magnet, and the upper magnet is fixed with the lower magnet in an adsorption manner.

Furthermore, in the above technical solution, a first convex ring body is integrally formed at the lower end of the rotary inner cylinder, and the upper magnet is fixed in the first convex ring body in a snap-fit manner.

Further, in the above technical solution, a second convex ring body is integrally formed at the bottom of the inner cavity of the outer cylinder, and the bearing is embedded and fixed in the second convex ring body; the outer cylinder body is externally provided with a window communicated with the inner cavity of the outer cylinder body, and the lower end part of the rotary inner cylinder is exposed in the window.

Furthermore, in the above technical solution, the rotation driving mechanism includes an outer gear ring, a motor installed outside the outer cylinder, a reduction gearbox installed at the upper end of the motor and adapted to a rotating shaft of the motor, a first output shaft installed on the reduction gearbox, and a first driving gear installed on the first output shaft and engaged with the outer gear ring, a plurality of anti-tripping devices are formed at the lower end of the outer gear ring, an anti-tripping flange is formed at the periphery of the upper end of the outer cylinder, the outer gear ring is installed at the upper end of the outer cylinder, and the anti-tripping devices at the lower end of the outer gear ring are connected with the anti-tripping flange at the periphery of the upper end of the outer cylinder in a buckling manner, so that the outer gear ring can rotate relative to the outer cylinder, and the outer gear ring is connected with and linked with the rotation inner cylinder.

Further, in the above technical solution, a plurality of first limiting grooves are formed on the inner side of the outer gear ring; the periphery of the upper end of the rotary inner cylinder is formed with a first limiting block, and the first limiting block is embedded and fixed in the first limiting groove.

Furthermore, in the above technical scheme, an annular sliding groove is formed in the lower end face of the outer gear ring, a plurality of arc-shaped sliding pieces are formed at the upper end of the outer barrel, and the arc-shaped sliding pieces are embedded into the annular sliding groove and can slide in the annular sliding groove.

Furthermore, in the above technical solution, the telescopic driving mechanism includes a base, a fixed inner cylinder fixedly installed at the front end of the base, a rotatable rotating shaft cylinder penetrating through the inside of the fixed inner cylinder and rotatable, a speed reducer installed at the rear end of the base, a motor installed in a manner matching with the speed reducer, a rotating shaft installed at the front end of the speed reducer and driven by the speed reducer to rotate, and a telescopic cylinder sleeved on the periphery of the fixed inner cylinder and capable of telescopically sliding on the fixed inner cylinder, wherein the front end of the rotating shaft is fixedly connected with the rotating shaft cylinder, an oval stroke chute is formed on the outer surface of the rotating shaft cylinder, the fixed inner cylinder is provided with a straight sliding hole penetrating along the outer surface thereof, the telescopic cylinder is provided with a bolt, and the end of the bolt penetrates through the straight sliding hole of the fixed inner cylinder to extend into the oval stroke chute; the section of the outer surface of the fixed inner cylinder is non-circular, and the inner cavity of the telescopic cylinder is matched with the outer surface of the fixed inner cylinder in shape; the lower end of the outer cylinder body is fixed at the upper end of the telescopic cylinder.

Further, in the above technical solution, the base is provided with a tact switch; the outer edge of the telescopic cylinder is provided with a trigger sheet matched with the light touch switch.

Furthermore, in the above technical solution, the outside of the telescopic cylinder is further provided with a plurality of guide rods, the periphery of the base is provided with a plurality of shaft sleeves, and the guide rods pass through the shaft sleeves and can slide in the shaft sleeves.

Furthermore, in the above technical solution, a bar-shaped slider is further formed on the inner wall of the telescopic cylinder, a screw hole penetrating through the bar-shaped slider is formed inward along the outer surface of the telescopic cylinder, the bar-shaped slider is disposed in the linear sliding hole of the fixed inner cylinder, the bolt is screwed into the screw hole, and the end of the bolt extends out of the bar-shaped slider and into the elliptical stroke sliding groove; the outer surface of the telescopic cylinder is provided with a mounting groove at the screw hole, a pressing sheet is mounted in the mounting groove and locked by a first screw, and the pressing sheet is pressed on the bolt.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: when the utility model works, the telescopic driving mechanism drives the outer cylinder to move telescopically, and the rotary driving mechanism drives the rotary inner cylinder arranged in the outer cylinder to rotate, thereby achieving the purpose of driving the rotary inner cylinder to rotate telescopically; furthermore, because the lower magnet accessible swivelling joint seat cooperation bearing of outer barrel inner chamber bottom realizes the free rotation, and should be down magnet and the last magnet absorption of rotatory inner tube lower extreme setting fixed, so that carry on spacingly to this rotatory inner tube lower extreme, and this swivelling joint seat is as the rotatory axle center of rotatory inner tube lower extreme, can prevent effectively that this rotatory inner tube from appearing eccentric stability at rotatory in-process, and can guarantee that rotary driving mechanism moves very stably, smoothly, can effectively avoid rocking the problem big and easy wearing and tearing, can not produce the noise or the noise that produces is minimum, and can improve product life.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a perspective view of another perspective of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a perspective view of the utility model after the telescopic driving mechanism is disassembled;

FIG. 5 is a perspective view of the outer ring gear of the present invention;

fig. 6 is an exploded perspective view of the telescopic driving mechanism of the present invention;

fig. 7 is a perspective view of the telescopic cylinder of the present invention;

fig. 8 is a perspective view of the middle fixed inner tube of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

As shown in fig. 1-8, the magnetic-type retractable rotary gearbox structure includes an outer cylinder 1, a retractable driving mechanism 2 installed at a lower end of the outer cylinder 1 and used for driving the outer cylinder 1 to move telescopically, a rotary inner cylinder 3 rotatably installed in the outer cylinder 1, and a rotary driving mechanism 4 used for driving the rotary inner cylinder 3 to rotate, wherein a bearing 11 is installed at a bottom of an inner cavity of the outer cylinder 1, a rotatable rotary connecting base 12 is installed on the bearing 11, and a lower magnet 13 is fixed at an upper end of the rotary connecting base 12; an upper magnet 31 is provided at the lower end of the rotary inner cylinder 3, and the upper magnet 31 is fixed to the lower magnet 13 by attraction. When the utility model works, the telescopic driving mechanism 2 drives the outer cylinder body 1 to move telescopically, and the rotary driving mechanism 4 drives the rotary inner cylinder 3 arranged in the outer cylinder body 1 to rotate, thereby achieving the purpose of driving the rotary inner cylinder 3 to rotate telescopically; furthermore, because the lower magnet 13 accessible swivelling joint seat 12 cooperation bearing 11 of outer barrel 1 inner chamber bottom realizes the free rotation, and should lower magnet 13 and the last magnet 31 of 3 lower extreme settings of rotatory inner tube adsorb fixedly, so that carry on spacingly to 3 lower extremes of this rotatory inner tube, and this swivelling joint seat 12 is as the rotatory axle center of the rotatory lower extreme of rotatory inner tube 3, can prevent effectively that this rotatory inner tube 3 from appearing eccentric stability at rotatory in-process, and can guarantee that rotary drive mechanism 4 moves very stably, smoothly, can effectively avoid rocking the problem big and easy wearing and tearing, can not produce the noise or the noise that produces is minimum, and can improve product life.

Rotatory inner tube 3 lower extreme integrated into one piece has first bulge loop body 32, go up magnet 31 inlay card and be fixed in this first bulge loop body 32, guarantee to go up magnet 31 and stable installation in this rotatory inner tube 3 lower extreme, and simple structure, stability.

A second convex ring body 14 is integrally formed at the bottom of the inner cavity of the outer cylinder body 1, and the bearing 11 is embedded and fixed in the second convex ring body 14; the outer cylinder 1 is externally provided with a window 10 communicated with the inner cavity of the outer cylinder, the lower end part of the rotary inner cylinder 3 is exposed in the window 10, and the lower end part of the rotary inner cylinder is respectively arranged on the lower magnet 13, the rotary connecting seat 12 and the bearing 11 through the window 10, and is convenient to maintain.

The rotary driving mechanism 4 comprises an outer gear ring 41, a motor 42 arranged outside the outer cylinder 1, a reduction gearbox 43 arranged at the upper end of the motor 42 and matched with a rotating shaft of the motor 42, a first output shaft 44 arranged on the reduction gearbox 43, and a first driving gear 45 arranged on the first output shaft 44 and meshed with the outer gear ring 41, wherein a plurality of anti-tripping devices 411 are formed at the lower end of the outer gear ring 41, an anti-tripping flange 15 is formed at the periphery of the upper end of the outer cylinder 1, the outer gear ring 41 is arranged at the upper end of the outer cylinder 1, the anti-tripping devices 411 at the lower end of the outer gear ring 41 are connected with the anti-tripping flange 15 at the periphery of the upper end of the outer cylinder 1 in a buckling mode, the structure is simple, the assembly is also convenient, the outer gear ring 41 can rotate relative to the outer cylinder 1, and the outer gear ring 41 is connected with the rotary inner cylinder 3 and linked.

A plurality of first limiting grooves 412 are formed in the inner side of the outer gear ring 41; a first limiting block 33 is formed on the periphery of the upper end of the rotary inner cylinder 3, and the first limiting block 33 is embedded and fixed in the first limiting groove 412, so as to ensure that the rotary inner cylinder 3 and the outer gear ring 41 are fixedly connected together, thereby realizing linkage.

Annular spout 413 has been seted up to outer ring gear 41 terminal surface, the shaping of outer barrel 1 upper end has a plurality of arc gleitbretters 16, and this arc gleitbretter 16 imbeds in this annular spout 413 to can slide in annular spout 413, can guarantee to install in this outer barrel 1 upper end more steadily with this outer ring gear 41 to it is more stable, more smooth and easy to make outer ring gear 41 rotatory getting up in this outer barrel 1 upper end.

The telescopic driving mechanism 2 comprises a base 21, a fixed inner cylinder 22 fixedly arranged at the front end of the base 21, a rotatable rotating shaft cylinder 23 which is arranged in the fixed inner cylinder 22 in a penetrating way and can rotate, a speed reducer 24 arranged at the rear end of the base 21, a motor 25 which is matched with the speed reducer 24, a rotating shaft 26 which is arranged at the front end of the speed reducer 24 and driven by the speed reducer 24 to rotate, and a telescopic cylinder 27 which is sleeved at the periphery of the fixed inner cylinder 22 and can slide on the fixed inner cylinder 22 in a telescopic way, the front end of the rotating shaft 26 is fixedly connected with the rotating shaft cylinder 23, the outer surface of the rotating shaft cylinder 23 is formed with an oval stroke chute 231 which is distributed in an inclined way, the fixed inner cylinder 22 is provided with a straight line sliding hole 221 which penetrates inwards along the outer surface, the telescopic cylinder 27 is provided with a bolt 271, the end of the bolt 271 passes through the linear sliding hole 221 of the fixed inner cylinder 22 to extend into the oval stroke sliding slot 231; the section of the outer surface of the fixed inner cylinder 22 is non-circular, and the inner cavity of the telescopic cylinder 27 is matched with the outer surface of the fixed inner cylinder 22 in shape; the lower end of the outer cylinder body 1 is fixed at the upper end of the telescopic cylinder 27. Because the utility model adopts the rotating shaft matched with the rotating shaft cylinder to drive the telescopic cylinder to stably perform linear telescopic sliding on the periphery of the fixed inner cylinder, the rotary motion is converted into linear sliding, the size of the fixed inner cylinder is large, the operation is stable, the load space volume is small, so that the noise cannot be generated or the generated noise is small, the problem of easy abrasion and large shaking cannot occur, and the practicability is strong; in addition, because base, fixed inner tube, rotating shaft section of thick bamboo, decelerator, motor, axis of rotation and telescopic cylinder reasonable assembly, and fixed inner tube surface cross-section is the non-circular, and telescopic cylinder inner chamber molding also with fixed inner tube surface molding adaptation, make the utility model discloses the operation is stable, can guarantee that the motor can not appear the phenomenon of shake when high-speed operation, reduces the damage, makes the utility model discloses operate steadily, the order the utility model discloses extremely strong market competition has.

The base 21 is provided with a tact switch 210; the outer edge of the telescopic cylinder 27 is provided with a trigger piece 270 matched with the tact switch 210. When the telescopic driving mechanism 2 drives the telescopic cylinder 27 to perform telescopic motion, at this time, the trigger piece 270 touches the tact switch 210 when falling to the bottom position each time, the tact switch sends a signal to be controlled by an external circuit board to power off the motor, so as to drive the tact switch 210 and the trigger piece 270 to stop at the same position and not to be telescopic any more, or the trigger piece 270 can be driven to return to the position of the tact switch from any position when not being telescopic.

The outside of the telescopic cylinder 27 is also provided with a plurality of guide rods 276, the periphery of the base 21 is provided with a plurality of shaft sleeves 211, and the guide rods 276 penetrate through the shaft sleeves 211 and can slide in the shaft sleeves 211, so that the stability of telescopic movement is ensured.

The inner wall of the telescopic cylinder 27 is further formed with a strip-shaped sliding block 272, the telescopic cylinder 27 is provided with a screw hole 273 penetrating through the strip-shaped sliding block 272 inwards along the outer surface thereof, the strip-shaped sliding block 272 is arranged in the linear sliding hole 221 of the fixed inner cylinder 22, the bolt 271 is fixed in the screw hole 273 in a spiral manner, and the end part of the bolt 271 extends out of the strip-shaped sliding block 272 and extends into the oval stroke sliding groove 231; the mounting groove 274 has been seted up in screw 273 department to telescopic cylinder 27 surface, installs a preforming 275 in this mounting groove 274 to through first screw locking, and this preforming 275 presses on the bolt 271, guarantee bolt 271 stable installation in telescopic cylinder 27, prevent that bolt 271 from outwards stretching out after using for a long time, guarantee the utility model discloses a life and operating mass with rated load.

To sum up, when the utility model works, the telescopic driving mechanism 2 drives the outer cylinder 1 to move telescopically, and the rotary driving mechanism 4 drives the rotary inner cylinder 3 arranged in the outer cylinder 1 to rotate, so as to achieve the purpose of driving the rotary inner cylinder 3 to rotate telescopically; furthermore, because the lower magnet 13 accessible swivelling joint seat 12 cooperation bearing 11 of outer barrel 1 inner chamber bottom realizes the free rotation, and should lower magnet 13 and the last magnet 31 of 3 lower extreme settings of rotatory inner tube adsorb fixedly, so that carry on spacingly to 3 lower extremes of this rotatory inner tube, and this swivelling joint seat 12 is as the rotatory axle center of the rotatory lower extreme of rotatory inner tube 3, can prevent effectively that this rotatory inner tube 3 from appearing eccentric stability at rotatory in-process, and can guarantee that rotary drive mechanism 4 moves very stably, smoothly, can effectively avoid rocking the problem big and easy wearing and tearing, can not produce the noise or the noise that produces is minimum, and can improve product life.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a flexible rotatory tooth case structure of formula is inhaled to magnetism, its includes outer barrel (1), install in this outer barrel (1) lower extreme and be used for driving the flexible actuating mechanism (2) of this outer barrel (1) telescopic movement and install in this outer barrel (1) rotatory inner tube (3) and be used for driving the rotatory rotary driving mechanism (4) of this rotatory inner tube (3) with rotatable mode, its characterized in that:

a bearing (11) is arranged at the bottom of the inner cavity of the outer cylinder body (1), a rotatable rotary connecting seat (12) is arranged on the bearing (11), and a lower magnet (13) is fixed at the upper end of the rotary connecting seat (12); an upper magnet (31) is arranged at the lower end of the rotary inner cylinder (3), and the upper magnet (31) and the lower magnet (13) are fixed in an adsorption mode.

2. The magnetic type telescopic rotary gearbox structure as claimed in claim 1, characterized in that: the lower end of the rotary inner cylinder (3) is integrally formed with a first convex ring body (32), and the upper magnet (31) is embedded and fixed in the first convex ring body (32).

3. The magnetic type telescopic rotary gearbox structure as claimed in claim 1, characterized in that: a second convex ring body (14) is integrally formed at the bottom of the inner cavity of the outer cylinder body (1), and the bearing (11) is embedded and fixed in the second convex ring body (14); the outer cylinder body (1) is externally provided with a window (10) communicated with the inner cavity of the outer cylinder body, and the lower end part of the rotary inner cylinder (3) is exposed in the window (10).

4. The structure of magnetic-type telescopic rotary gearbox according to any one of claims 1 to 3, characterized in that: the rotary driving mechanism (4) comprises an outer gear ring (41), a motor (42) arranged on the outer side of the outer cylinder body (1), a reduction box (43) arranged at the upper end of the motor (42) and matched with a rotating shaft of the motor (42), a first output shaft (44) arranged on the reduction box (43) and a first driving gear (45) arranged on the first output shaft (44) and meshed with the outer gear ring (41), a plurality of anti-tripping devices (411) are formed at the lower end of the outer gear ring (41), an anti-tripping flange (15) is formed at the periphery of the upper end of the outer cylinder body (1), the outer gear ring (41) is arranged at the upper end of the outer cylinder body (1), and the anti-tripping device (411) at the lower end of the outer gear ring (41) is connected with the anti-tripping flange (15) at the periphery of the upper end of the outer cylinder body (1) in a buckling way, so that the outer gear ring (41) can rotate relative to the outer cylinder body (1), and the outer gear ring (41) is connected and interlocked with the rotary inner cylinder (3).

5. The magnetic type telescopic rotary gearbox structure as claimed in claim 4, characterized in that: a plurality of first limiting grooves (412) are formed in the inner side of the outer gear ring (41); a first limiting block (33) is formed on the periphery of the upper end of the rotary inner cylinder (3), and the first limiting block (33) is embedded and fixed in the first limiting groove (412).

6. The magnetic type telescopic rotary gearbox structure as claimed in claim 5, wherein: annular sliding grooves (413) are formed in the lower end face of the outer gear ring (41), a plurality of arc-shaped sliding pieces (16) are formed in the upper end of the outer barrel (1), and the arc-shaped sliding pieces (16) are embedded into the annular sliding grooves (413) and can slide in the annular sliding grooves (413).

7. The structure of magnetic-type telescopic rotary gearbox according to any one of claims 1 to 3, characterized in that: the telescopic driving mechanism (2) comprises a base (21), a fixed inner cylinder (22) fixedly arranged at the front end of the base (21), a rotatable rotating shaft cylinder (23) which is arranged in the fixed inner cylinder (22) in a penetrating way, a speed reducer (24) arranged at the rear end of the base (21), a motor (25) which is matched with the speed reducer (24) and is arranged, a rotating shaft (26) which is arranged at the front end of the speed reducer (24) and is driven by the speed reducer (24) to rotate, and a telescopic cylinder (27) which is sleeved on the periphery of the fixed inner cylinder (22) and can telescopically slide on the fixed inner cylinder (22), wherein the front end of the rotating shaft (26) is fixedly connected with the rotating shaft cylinder (23), the outer surface of the rotating shaft cylinder (23) is formed with obliquely distributed oval stroke chutes (231), and the fixed inner cylinder (22) is internally provided with a penetrating linear sliding hole (221) along the outer surface thereof, a bolt (271) is arranged on the telescopic cylinder (27), and the end part of the bolt (271) penetrates through the linear sliding hole (221) of the fixed inner cylinder (22) to extend into the oval stroke sliding groove (231); the section of the outer surface of the fixed inner cylinder (22) is non-circular, and the inner cavity of the telescopic cylinder (27) is matched with the outer surface of the fixed inner cylinder (22); the lower end of the outer cylinder body (1) is fixed at the upper end of the telescopic cylinder (27).

8. The magnetic type telescopic rotary gearbox structure as claimed in claim 7, wherein: the base (21) is provided with a light touch switch (210); the outer edge of the telescopic cylinder (27) is provided with a trigger sheet (270) matched with the light touch switch (210).

9. The magnetic type telescopic rotary gearbox structure as claimed in claim 7, wherein: the outer side of the telescopic cylinder (27) is also provided with a plurality of guide rods (276), the periphery of the base (21) is provided with a plurality of shaft sleeves (211), and the guide rods (276) penetrate through the shaft sleeves (211) and can slide in the shaft sleeves (211).

10. The magnetic type telescopic rotary gearbox structure as claimed in claim 7, wherein: a strip-shaped sliding block (272) is further formed on the inner wall of the telescopic cylinder (27), a screw hole (273) penetrating through the strip-shaped sliding block (272) is formed in the telescopic cylinder (27) inwards along the outer surface of the telescopic cylinder (27), the strip-shaped sliding block (272) is arranged in a linear sliding hole (221) of the fixed inner cylinder (22), the bolt (271) is spirally fixed in the screw hole (273), and the end part of the bolt (271) extends out of the strip-shaped sliding block (272) and into the oval stroke sliding groove (231); an installation groove (274) is formed in the outer surface of the telescopic cylinder (27) at the screw hole (273), a pressing sheet (275) is installed in the installation groove (274) and locked through a first screw, and the pressing sheet (275) is pressed on the bolt (271).