CN216478758U - Double-speed telescopic tooth box - Google Patents
Double-speed telescopic tooth box Download PDFInfo
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- CN216478758U CN216478758U CN202122978955.2U CN202122978955U CN216478758U CN 216478758 U CN216478758 U CN 216478758U CN 202122978955 U CN202122978955 U CN 202122978955U CN 216478758 U CN216478758 U CN 216478758U
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Abstract
The utility model discloses a double-speed telescopic gearbox, which comprises a fixed base, a fixed inner cylinder fixed at the front end of the fixed base, a rotatable rotating shaft cylinder penetrating through the inside of the fixed inner cylinder, a motor driving device arranged at the rear end of the fixed base and used for driving the rotating shaft cylinder 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 a track sliding chute is formed on the outer surface of the rotating shaft cylinder; the orbit spout is oval wavy, and the orbit spout end to end, and oval wavy has two at least crests and two at least troughs, makes the rotatory axle section of thick bamboo rotatory round after, the telescopic cylinder slides on fixed inner tube telescopically at least twice. The track sliding groove in the utility model can multiply the linear telescopic sliding of the telescopic cylinder without increasing the rotating speed of the motor, thereby ensuring the service life of the motor.
Description
The technical field is as follows:
the utility model relates to the technical field of tooth box products, in particular to a double-speed 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.
In most of the telescopic tooth boxes in the prior art, the central screw rod for driving rotation is made of rubber and is small, the motor rotating speed can only be accelerated when the speed is increased, the problems of high noise generation and high wearing and tearing shaking caused by large load space volume exist, the motor rotating speed is fixed, the practicability is not high when the rotating speed cannot be increased, the motor rotating speed is increased for increasing the driving speed, the service life of the motor is shortened, the speed control is not easy, the efficiency is lost, and the like.
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 double-speed telescopic tooth box.
In order to solve the technical problems, the utility model adopts the following technical scheme: the double-speed telescopic gearbox 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 inside of the fixed inner cylinder and capable of rotating, a motor driving device arranged at the rear end of the fixed base and used for driving the rotating shaft cylinder 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 a track sliding chute is formed in the outer surface of the rotating shaft cylinder; the track spout is oval wave shape, and this track spout end to end, and this oval wave has two at least crests and two at least troughs, makes rotatory axle section of thick bamboo rotatory round back, and this telescopic cylinder is flexible twice at least on fixed inner tube.
Furthermore, in the above technical solution, the number of the wave crests in the elliptical wave shape is two, and the number of the wave troughs is also two, so that after the rotary shaft cylinder rotates for one turn, the telescopic cylinder slides on the fixed inner cylinder in a telescopic manner twice.
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 through 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 roller is disposed in the through hole in a penetrating manner, and the end of the roller extends out of the bar-shaped slider and into the track sliding groove.
Furthermore, in the above technical solution, an installation groove is formed in the through hole on the outer surface of the telescopic cylinder, a pressing sheet is installed in the installation groove and locked by a first screw, and the pressing sheet is pressed on the roller.
Furthermore, in the above technical solution, the roller includes a hard bolt located at the center and a soft rubber tube fixedly sleeved on the periphery of the hard bolt, and the outer surface of the soft rubber tube contacts with the inner wall of the track chute.
Further, in the above technical solution, the roller is rotatably inserted into the telescopic cylinder and can rotate in the track chute.
Furthermore, in the above technical solution, the cross section of the outer surface of the fixed inner cylinder is non-circular, and the inner cavity of the telescopic cylinder is adapted to the outer surface of the fixed inner cylinder.
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 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.
After adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the motor driving device is 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, so that the rotating motion is converted into linear sliding, the sizes of the fixed inner cylinder and the rotating shaft cylinder are large, the load space volume is small, noise cannot be generated or generated noise is small, the problems of easy abrasion and large shaking cannot occur, and the practicability is high; the track sliding groove is in an elliptical wave shape, the track sliding groove is connected end to end, the elliptical wave shape is provided with at least two wave crests and at least two wave troughs, the telescopic cylinder can at least telescopically slide on the fixed inner cylinder twice after the rotary shaft cylinder rotates for one circle, the rotating speed of a motor in the motor driving device does not need to be increased, the effect of accelerating the telescopic cylinder can be achieved, the service life of the motor is guaranteed, the rotation of the motor can be better controlled, and the efficiency of the motor is guaranteed.
Description of the drawings:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a rotating shaft cartridge according to the present invention;
FIG. 3 is a schematic view of the track chute of the rotatable shaft of the present invention after it has been deployed into a flat plane;
FIG. 4 is a perspective view of the telescoping cylinder of the present invention;
FIG. 5 is a perspective view of a roller in the present invention;
fig. 6 is an exploded perspective view of the present invention.
The specific implementation mode is as follows:
the utility model is further illustrated below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1-6, a double-speed telescopic gearbox is provided, which includes a fixed base 1, a fixed inner cylinder 2 fixedly installed at the front end of the fixed base 1, a rotatable rotating shaft cylinder 3 penetrating through the inside of the fixed inner cylinder 2, a motor driving device 10 installed at the rear end of the fixed base 1 and used for driving the rotating shaft cylinder 3 to rotate, and a telescopic cylinder 7 sleeved on the periphery of the fixed inner cylinder 2 and capable of telescopically sliding on the fixed inner cylinder 2, wherein a track chute 31 is formed on the outer surface of the rotating shaft cylinder 3, a through linear sliding hole 21 is formed in the fixed inner cylinder 2 along the outer surface of the fixed inner cylinder 2, a rotatable roller 70 is arranged on the telescopic cylinder 7, and the end of the roller 70 penetrates through the linear sliding hole 21 of the fixed inner cylinder 2 to extend into the track chute 31 of the telescopic cylinder 7; the track chute 31 is in an elliptical wave shape, the track chute 31 is connected end to end, the elliptical wave shape is provided with at least two wave crests and at least two wave troughs, and after the rotary shaft cylinder 3 rotates for one circle, the telescopic cylinder 7 can at least telescopically slide on the fixed inner cylinder 2 for two times. According to the utility model, the motor driving device 10 is matched 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, so that the rotating motion is converted into linear sliding, the sizes of the fixed inner cylinder 2 and the rotating shaft cylinder 3 are both large, the load space volume is small, noise cannot be generated or generated noise is small, the problems of easy abrasion and large shaking cannot occur, and the practicability is strong; the track chute 31 is in an elliptical wave shape, the track chute 31 is connected end to end, the elliptical wave shape has at least two wave crests and at least two wave troughs, the telescopic cylinder 7 can at least telescopically slide on the fixed inner cylinder 2 twice after the rotary shaft cylinder 3 rotates for one circle, the rotating speed of a motor in the motor driving device 10 does not need to be increased, the effect of increasing the speed of the telescopic cylinder can be achieved, the service life of the motor is ensured, the rotation of the motor can be better controlled, and the efficiency of the motor is ensured.
The number of wave crests is two in the oval wave shape, and the number of trough also is two, makes rotatory axle section of thick bamboo 3 rotatory round after, this telescopic cylinder 7 is flexible twice on fixed inner tube 2.
Similarly, the number of the wave crests in the elliptical wave shape is three, and the number of the wave troughs is also three, so that the telescopic cylinder 7 telescopically slides three times on the fixed inner cylinder 2 after the rotary shaft cylinder 3 rotates for one circle. Similarly, the number of the wave crests in the elliptical wave shape is four, and the number of the wave troughs is also four, so that the telescopic cylinder 7 telescopically slides on the fixed inner cylinder 2 for four times after the rotary shaft cylinder 3 rotates for one circle.
The inner wall of the telescopic cylinder 7 is further formed with a strip-shaped sliding block 72, the telescopic cylinder 7 is provided with a through hole 73 penetrating through the strip-shaped sliding block 72 inwards along the outer surface thereof, and the strip-shaped sliding block 72 is arranged in the linear sliding hole 21 of the fixed inner cylinder 2 so as to limit that the telescopic cylinder 7 can only slide linearly outside the fixed inner cylinder 2. The roller 70 is disposed through the through hole 73, and the end of the roller 70 extends out of the bar-shaped slider 72 and into the track chute 31.
An installation groove 74 is formed in the through hole 73 on the outer surface of the telescopic cylinder 7, a pressing sheet 75 is installed in the installation groove 74 and locked by a first screw, and the pressing sheet 75 is pressed on the roller 70, so that the roller 70 can be effectively prevented from being accidentally disengaged, and the end of the roller 70 can be ensured to extend into the track chute 31.
The roller 70 includes a hard bolt 701 located at the center and a soft rubber tube 702 fixedly sleeved on the periphery of the hard bolt 701, and the outer surface of the soft rubber tube 702 contacts with the inner wall of the track chute 31. In actual work, the outside of the soft rubber pipe 702 is in contact with the inside of the track chute 31 to form soft contact and can rotate, the tradition that the hard bolt is in hard contact/hard collision with the inner wall of the track chute 31 when rotating at a high speed is broken, the collision friction heating of the hard rubber and the hard rubber is avoided, and the sound of collision friction caused by the combination of the hard rubber and the soft rubber is reduced by the combination of the hard rubber and the soft rubber, so that the sound of collision friction is reduced, the operation is stable, the speed is high, the noise is low, and the strong market competitiveness is realized.
The roller 70 is rotatably inserted into the telescopic tube 7 and is rotatable in the track 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 has stable operation, can ensure that the motor does not shake when running at high speed, reduces damage, has stable operation, large torsion and high speed, and has strong market competitiveness. The section of the outer surface of the fixed inner cylinder 2 is polygonal; the section of the inner cavity of the telescopic cylinder 7 is polygonal,
a plurality of guide rods 76 are further arranged outside the telescopic cylinder 7, a plurality of shaft sleeves 11 are arranged on the periphery of the fixed base 1, and the guide rods 76 penetrate through the shaft sleeves 11 and can slide in the shaft sleeves 11.
The rear end of the fixed inner cylinder 2 is provided with a flange 22, the flange 22 is in butt joint with the fixed base 1 and is locked by a plurality of second screws, a yielding groove 23 is formed in the outer side of the flange 22, and the guide rod 76 penetrates through the yielding groove 23 and is not in contact with the yielding groove 23.
The motor driving device 10 comprises a speed reducer 4 arranged at the rear end of the fixed base 1, a motor 5 matched with the speed reducer 4, and a rotating shaft 6 arranged at the front end of the speed reducer 4 and driven by the speed reducer 4 to rotate, wherein the front end of the rotating shaft 6 is fixedly connected with the rotating shaft barrel 3; 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.
In conclusion, the motor driving device 10 is matched 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, so that the rotating motion is converted into linear sliding, the sizes of the fixed inner cylinder 2 and the rotating shaft cylinder 3 are large, the load space volume is small, noise cannot be generated or generated noise is small, the problems of easy abrasion and large shaking cannot occur, and the practicability is high; the track chute 31 is in an elliptical wave shape, the track chute 31 is connected end to end, the elliptical wave shape has at least two wave crests and at least two wave troughs, the telescopic cylinder 7 can at least telescopically slide on the fixed inner cylinder 2 twice after the rotary shaft cylinder 3 rotates for one circle, the rotating speed of a motor in the motor driving device 10 does not need to be increased, the effect of increasing the speed of the telescopic cylinder can be achieved, the service life of the motor is ensured, the rotation of the motor can be better controlled, and the efficiency of the motor is ensured.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. A double-speed telescopic tooth box 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) penetrating through the inside of the fixed inner cylinder (2), a motor driving device (10) arranged at the rear end of the fixed base (1) and used for driving the rotating shaft cylinder (3) to rotate, and a telescopic cylinder (7) sleeved on the periphery of the fixed inner cylinder (2) and capable of telescopically sliding on the fixed inner cylinder (2), wherein a track chute (31) is formed on the outer surface of the rotating shaft cylinder (3), the fixed inner cylinder (2) is internally provided with a through linear sliding hole (21) along the outer surface, a rotatable roller (70) is arranged on the telescopic cylinder (7), and the end part of the roller (70) penetrates through the linear sliding hole (21) of the fixed inner cylinder (2) to extend into the track chute (31) of the telescopic cylinder (7);
the method is characterized in that: the track sliding groove (31) is in an elliptic wave shape, the track sliding groove (31) is connected end to end, the elliptic wave shape is provided with at least two wave crests and at least two wave troughs, and after the rotary shaft cylinder (3) rotates for one circle, the telescopic cylinder (7) can at least telescopically slide on the fixed inner cylinder (2) for two times.
2. The double-speed telescopic gearbox as claimed in claim 1, wherein: the number of wave crests is two in the oval wave shape, and the number of trough is also two, makes rotatory beam barrel (3) rotatory round after, this telescopic cylinder (7) are flexible twice on fixed inner tube (2).
3. The double-speed telescopic gearbox as claimed in claim 2, wherein: 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 through 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 rolling shaft (70) is arranged in the through hole (73) in a penetrating mode, and the end portion of the rolling shaft (70) extends out of the strip-shaped sliding block (72) and into the track sliding groove (31).
4. A double speed telescopic dental box according to claim 3, wherein: an installation groove (74) is formed in the position, where the through hole (73) is formed, of the outer surface of the telescopic cylinder (7), 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 rolling shaft (70).
5. The double-speed telescopic tooth box according to any one of claims 1 to 4, characterized in that: the rolling shaft (70) comprises a hard bolt (701) positioned in the center and a soft rubber pipe (702) fixedly sleeved on the periphery of the hard bolt (701), and the outer surface of the soft rubber pipe (702) is in contact with the inner wall of the track sliding groove (31).
6. The double-speed telescopic gearbox as claimed in claim 5, wherein: the rolling shaft (70) is rotatably arranged in the telescopic cylinder (7) in a penetrating way and can rotate in the track chute (31).
7. The double-speed telescopic tooth box according to any one of claims 1 to 4, characterized in that: 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).
8. The double-speed telescopic gearbox as claimed in claim 7, wherein: 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.
9. The double-speed telescopic tooth box according to any one of claims 1 to 4, characterized in that: 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).
10. The double-speed telescopic gearbox as claimed in claim 9, wherein: 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978955.2U CN216478758U (en) | 2021-11-30 | 2021-11-30 | Double-speed telescopic tooth box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978955.2U CN216478758U (en) | 2021-11-30 | 2021-11-30 | Double-speed telescopic tooth box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478758U true CN216478758U (en) | 2022-05-10 |
Family
ID=81402057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122978955.2U Active CN216478758U (en) | 2021-11-30 | 2021-11-30 | Double-speed telescopic tooth box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478758U (en) |
-
2021
- 2021-11-30 CN CN202122978955.2U patent/CN216478758U/en active Active
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