CN211599448U

CN211599448U - Telescopic tooth box

Info

Publication number: CN211599448U
Application number: CN202020080249.9U
Authority: CN
Inventors: 程香英
Original assignee: Dongguan Shangpin Industrial Co ltd
Current assignee: Dongguan Shangpin Industrial Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-09-29
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a flexible tooth case, it includes: the device comprises a fixed base, a fixed inner cylinder fixedly arranged at the front end of the fixed base, a rotatable rotating shaft cylinder penetrating through the fixed inner cylinder and capable of rotating, a speed reducer arranged at the rear end of the fixed base, a motor matched with the speed reducer, a rotating shaft arranged 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; 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 utility model discloses the practicality is strong, and operates steadily.

Description

Telescopic tooth box

The technical field is as follows:

the utility model relates to the technical field of tooth box products, in particular to a telescopic tooth box.

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.

And in the flexible tooth case of the majority among the prior art, because be used for the rotatory central hob of drive to adopt to glue system and tiny, there is the problem that produces the noise big and easy wearing and tearing shake big because the load space is bulky, and the practicality is not strong: meanwhile, the assembly mechanism of the telescopic gearbox is unreasonable, so that the motor often generates vibration when running at high speed, and the problems of increased machine loss and unstable running are caused. Therefore, it is necessary to design a telescopic gearbox which has strong practicability and smooth operation.

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

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide a telescopic tooth box.

In order to solve the technical problem, the utility model discloses a following technical scheme: this flexible tooth case includes: the device comprises a fixed base, a fixed inner cylinder fixedly arranged at the front end of the fixed base, a rotatable rotating shaft cylinder penetrating through the fixed inner cylinder and capable of rotating, a speed reducer arranged at the rear end of the fixed base, a motor matched with the speed reducer, a rotating shaft arranged 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; the cross 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.

Further, in the above technical solution, the cross section of the outer surface of the fixed inner cylinder is polygonal; the cross section of the inner cavity of the telescopic cylinder is polygonal.

Furthermore, in the above technical solution, the inner wall of the telescopic cylinder is further formed with a bar-shaped slider, the telescopic cylinder is provided with a screw hole penetrating through the bar-shaped slider inwards along the outer surface thereof, the bar-shaped slider is disposed in the linear sliding hole of the fixed inner cylinder, the bolt is fixed in the screw hole in a spiral manner, and the end of the bolt extends out of the bar-shaped slider and into the elliptical stroke sliding groove.

Furthermore, in the above technical solution, an installation groove is formed in the outer surface of the telescopic cylinder at the screw hole, a pressing sheet is installed in the installation groove and locked by a first screw, and the pressing sheet presses on the bolt.

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 fixed 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 scheme, a flange is arranged at the rear end of the fixed inner cylinder, the flange is in butt joint with the fixed base and is locked by a plurality of second screws, a abdicating groove is formed in the outer side of the flange, and the guide rod penetrates through the abdicating groove and is not in contact with the abdicating groove.

Furthermore, in the above technical solution, the speed reducer includes a bottom shell, an end cover fixed on the bottom shell, and a gear set installed between the bottom shell and the end cover, a rotating shaft of the motor extends into the bottom shell and is connected with the gear set, a rear end of the rotating shaft extends into the bottom shell and is connected with the gear set, the bottom shell is locked with the motor by a third screw, and the end cover is locked with the fixed base by a fourth screw.

Further, in the above technical solution, a bearing is disposed in the end cover, and the rotating shaft is disposed in the bearing in a penetrating manner.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: 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 unable adjustment base, fixed inner tube, a rotating shaft section of thick bamboo, decelerator, motor, axis of rotation and telescopic cylinder are rationally assembled, and fixed inner tube surface cross-section is 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.

Description of the drawings:

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

FIG. 2 is a perspective view of a rotating shaft cylinder of the present invention;

fig. 3 is an exploded perspective view of the present invention;

fig. 4 is a perspective view of the middle telescopic cylinder 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.

Referring to fig. 1-4, there is provided a telescopic dental box, comprising: a fixed base 1, a fixed inner cylinder 2 fixedly arranged at the front end of the fixed base 1, a rotary shaft cylinder 3 which penetrates through the fixed inner cylinder 2 and can rotate, a speed reducer 4 arranged at the rear end of the fixed base 1, a motor 5 which is matched with the speed reducer 4, a rotary shaft 6 which is arranged at the front end of the speed reducer 4 and is driven by the speed reducer 4 to rotate, a telescopic cylinder 7 which is sleeved at the periphery of the fixed inner cylinder 2 and can telescopically slide on the fixed inner cylinder 2, the front end of the rotating shaft 6 is fixedly connected with the rotating shaft barrel 3, the outer surface of the rotating shaft barrel 3 is formed with an oval stroke chute 31 which is distributed in an inclined way, the fixed inner cylinder 2 is internally provided with a straight line sliding hole 21 which penetrates along the outer surface, the telescopic cylinder 7 is provided with a bolt 71, the end of the bolt 71 passes through the linear sliding hole 21 of the fixed inner cylinder 2 to extend into the oval stroke chute 31; the cross section of the outer surface of the fixed inner cylinder 2 is non-circular, and the inner cavity of the telescopic cylinder 7 is matched with the outer surface of the fixed inner cylinder 2 in shape. The utility model discloses the during operation, motor 5 works and rotates with 6 low-speed and big torsion of this decelerator of drive and axis of rotation, with this rotatory shaft section of thick bamboo 3 of drive and stabilize the low-speed rotation inside fixed inner tube 2, and the oval stroke spout 31 that the peripheral slope of this rotatory shaft section of thick bamboo 3 distributes forces the bolt 71 that sets up on this section of thick bamboo 7 that contracts to remove along the orbit of this oval stroke spout 31, order about this bolt 71 tip with this and carry out the rectilinear sliding in the straight line slide hole 21 of this fixed inner tube 2, thereby reach and order about telescopic cylinder 7 and steadily carry out the slip that stretches out and draws back in fixed inner tube 2 periphery. Because the utility model adopts the rotating shaft 6 to cooperate with the rotating shaft cylinder 3 to drive the telescopic cylinder 7 to stably perform linear telescopic sliding on the periphery of the fixed inner cylinder 2, the rotary motion is converted into linear sliding, and the fixed inner cylinder 2 has large size, stable operation, small load space volume so as not to generate noise or small generated noise, and the problem of easy abrasion and large shaking can not occur, thus the practicability is strong; in addition, because unable adjustment base 1, fixed inner tube 2, a rotating shaft section of thick bamboo 3, decelerator 4, motor 5, axis of rotation 6 and telescopic cylinder 7 reasonable assembly, and 2 surface cross-sections of fixed inner tube are non-circular, and 7 inner chamber of telescopic cylinder molding also with fixed inner tube 2 surface molding adaptations, make the utility model discloses the operation is stable, can guarantee that the phenomenon of shake can not appear in the motor 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 section of the outer surface of the fixed inner cylinder 2 is polygonal; the inner chamber cross-section of telescopic cylinder 7 is the polygon, and this fixed inner tube 2 and telescopic cylinder 7 assembly back, self have the efficiency of guide rail, and avoid appearing the clearance between it and wearing and tearing, so that the utility model discloses flexible slip is more steady.

The inner wall of telescopic cylinder 7 is still fashioned to have bar slider 72, and this telescopic cylinder 7 inwards sets up the screw 73 that runs through this bar slider 72 along its surface, and this bar slider 72 is arranged in this fixed inner tube 2's straight line slide opening 21, during bolt 71 spiral was fixed in this screw 73, and this bolt 71 tip stretched out outside this bar slider 72 and stretched into in oval stroke spout 31, this bar slider 72 was arranged in straight line slide opening 21, played the guide effect, further guaranteed the utility model discloses flexible slip is more steady.

The outer surface of telescopic cylinder 7 is seted up in screw 73 department and is put mounting groove 74, installs a preforming 75 in this mounting groove 74 to through first screw locking, and this preforming 75 presses on bolt 71, guarantee bolt 71 stable installation in telescopic cylinder 7, prevent that bolt 71 from outwards stretching out after using for a long time, guarantee the utility model discloses a life and operating mass with rated load.

Still be provided with a plurality of guide arms 76 in the telescopic cylinder 7 outside, unable adjustment base 1 periphery is provided with a plurality of axle sleeves 11, and this guide arm 76 passes this axle sleeve 11 and can slide in axle sleeve 11, and it further strengthens the guide effect again, further guarantees again the utility model discloses flexible slip is more steady.

Fixed inner tube 2 rear end is provided with flange 22, this flange 22 with unable adjustment base 1 docks to through a plurality of second screw locks, guarantee the stability of structure assembly, this flange 22 outside shaping has the groove of stepping down 23, and guide arm 76 passes this groove of stepping down 23, and does not contact with this groove of stepping down 23, prevents this guide arm 76 and flange 22 outside contact and wearing and tearing appear, influences the utility model discloses a working quality.

The speed reducer 4 includes a bottom case 41, an end cover 42 fixed on the bottom case 41, and a gear set 43 installed between the bottom case 41 and the end cover 42, wherein a rotation shaft of the motor 5 extends into the bottom case 41 and is connected with the gear set 43, a rear end of the rotation shaft 6 extends into the bottom case 41 and is connected with the gear set 43, the bottom case 41 is locked with the motor 5 by a third screw, and the end cover 42 is locked with the fixing base 1 by a fourth screw. The end cover 42 is provided with a bearing, and the rotating shaft 6 is arranged in the bearing in a penetrating way.

To sum up, the utility model discloses the during operation, motor 5 work is rotated with driving this decelerator 4 and 6 low-speed and big torsion of axis of rotation to this rotatory shaft section of thick bamboo 3 of drive is inside to stabilize the low-speed rotation in fixed inner tube 2, and the oval stroke spout 31 of the peripheral slope distribution of this rotatory shaft section of thick bamboo 3 forces the bolt 71 that sets up on this section of thick bamboo 7 that contracts to remove along the orbit of this oval stroke spout 31, orders about this bolt 71 tip with this and carries out rectilinear sliding in the straight line slide opening 21 of this fixed inner tube 2, thereby reaches and orders about telescopic tube 7 and steadily stretches out and draws back the slip in fixed inner tube 2 periphery. Because the utility model adopts the rotating shaft 6 to cooperate with the rotating shaft cylinder 3 to drive the telescopic cylinder 7 to stably perform linear telescopic sliding on the periphery of the fixed inner cylinder 2, the rotary motion is converted into linear sliding, and the fixed inner cylinder 2 has large size, stable operation, small load space volume so as not to generate noise or small generated noise, and the problem of easy abrasion and large shaking can not occur, thus the practicability is strong; in addition, because unable adjustment base 1, fixed inner tube 2, a rotating shaft section of thick bamboo 3, decelerator 4, motor 5, axis of rotation 6 and telescopic cylinder 7 reasonable assembly, and 2 surface cross-sections of fixed inner tube are non-circular, and 7 inner chamber of telescopic cylinder molding also with fixed inner tube 2 surface molding adaptations, make the utility model discloses the operation is stable, can guarantee that the phenomenon of shake can not appear in the motor 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.

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. A flexible tooth case which characterized in that: it includes: the device comprises a fixed base (1), a fixed inner cylinder (2) fixedly arranged at the front end of the fixed base (1), a rotatable rotating shaft cylinder (3) which is arranged in the fixed inner cylinder (2) in a penetrating way and can rotate, a speed reducer (4) arranged at the rear end of the fixed base (1), a motor (5) which is matched with the speed reducer (4) and is arranged, a rotating shaft (6) which is arranged at the front end of the speed reducer (4) and is driven by the speed reducer (4) to rotate, and a telescopic cylinder (7) which is sleeved on the periphery of the fixed inner cylinder (2) and can slide on the fixed inner cylinder (2) in a telescopic way, wherein the front end of the rotating shaft (6) is fixedly connected with the rotating shaft cylinder (3), the outer surface of the rotating shaft cylinder (3) is formed with an oval stroke sliding chute (31) which is distributed in an inclined way, the fixed inner cylinder (2) is internally provided with a through linear sliding hole (21) along the outer surface thereof, the end part of the bolt (71) passes through the linear sliding hole (21) of the fixed inner cylinder (2) to extend into the oval stroke sliding chute (31); the cross section of the outer surface of the fixed inner cylinder (2) is non-circular, and the inner cavity of the telescopic cylinder (7) is adaptive to the outer surface of the fixed inner cylinder (2).

2. A telescopic dental box according to claim 1, characterized in that: the section of the outer surface of the fixed inner cylinder (2) is polygonal; the cross section of the inner cavity of the telescopic cylinder (7) is polygonal.

3. A telescopic dental box according to claim 2, characterized in that: the inner wall of the telescopic cylinder (7) is further formed with a strip-shaped sliding block (72), the telescopic cylinder (7) is internally provided with a screw hole (73) penetrating through the strip-shaped sliding block (72) along the outer surface of the telescopic cylinder (7), the strip-shaped sliding block (72) is arranged in the linear sliding hole (21) of the fixed inner cylinder (2), the bolt (71) is spirally fixed in the screw hole (73), and the end part of the bolt (71) extends out of the strip-shaped sliding block (72) and extends into the oval stroke sliding groove (31).

4. A telescopic dental box according to claim 3, characterized in that: an installation groove (74) is formed in the outer surface of the telescopic cylinder (7) at the screw hole (73), a pressing sheet (75) is installed in the installation groove (74) and locked through a first screw, and the pressing sheet (75) is pressed on the bolt (71).

5. The telescopic dental box according to any one of claims 1 to 4, wherein: the outer side of the telescopic cylinder (7) is also provided with a plurality of guide rods (76), the periphery of the fixed base (1) is provided with a plurality of shaft sleeves (11), and the guide rods (76) penetrate through the shaft sleeves (11) and can slide in the shaft sleeves (11).

6. A telescopic dental box according to claim 5, characterized in that: fixed inner tube (2) rear end is provided with flange (22), this flange (22) with unable adjustment base (1) butt joint to lock solid through a plurality of second screws, this flange (22) outside shaping has the groove of stepping down (23), and guide arm (76) pass this groove of stepping down (23), and do not contact with this groove of stepping down (23).

7. The telescopic dental box according to claim 6, wherein: the speed reducing device (4) comprises a bottom shell (41), an end cover (42) fixed on the bottom shell (41) and a gear set (43) arranged between the bottom shell (41) and the end cover (42), a rotating shaft of the motor (5) extends into the bottom shell (41) and is connected with the gear set (43), the rear end of the rotating shaft (6) extends into the bottom shell (41) and is connected with the gear set (43), the bottom shell (41) is locked with the motor (5) through a third screw, and the end cover (42) is locked with the fixed base (1) through a fourth screw.

8. The telescopic dental box according to claim 7, wherein: the end cover (42) is internally provided with a bearing, and the rotating shaft (6) is arranged in the bearing in a penetrating way.