CN208919284U - A kind of flexible tooth case - Google Patents

Abstract

The utility model discloses a kind of flexible tooth casees, including metal screw, gear cavity shell, telescopic cavity shell, motor cavity shell, end cap, motor spindle, power supply terminal and damping device, the outside of the motor cavity shell is evenly distributed with damping device, the bottom of the motor cavity shell is fixed by snap end cap, the side of the end cap is connected with motor spindle by bearing, and the side of end cap has been correspondingly embedded in power supply terminal, the top of the motor cavity shell is connected with telescopic cavity shell by card slot, gear cavity shell has been bolted at the top of the telescopic cavity shell, the side of the gear cavity shell is connected with metal screw by bearing, the damping device is by jacking block, adjustable spring, column, rack gear, roller gear, first fixed link, spring stack, first bevel gear, second bevel gear, second fixed link, torque spring and Damping chamber shell composition, the utility model have the characteristics that practical and run smoothly.

Description

A kind of flexible tooth case

Technical field

The utility model relates to tooth box technology field, specially a kind of flexible tooth case.

Background technique

Tooth case is also known as gearbox, it is a kind of speed that rotation is increased or decreased by engaged gears of different sizes With the device of torsion.The types such as power tooth case, upper chain tooth case and flywheel inertia tooth case can be divided into back, be widely used in electric toothbrush, The fields such as shaver and electronic toy.

And in most of existing flexible tooth casees, since shell is made of plastic cement, screw rod is made of plastic cement, there are because Inner space is big and to lead to the problem of noise greatly and easy to wear, not very practical；Motor is often produced when low speed is run simultaneously Raw vibration, causes machine loss to increase and run jiggly problem.Therefore, design that a kind of practical and what is run smoothly stretches Contracting tooth case is necessary.

Utility model content

The purpose of this utility model is to provide a kind of flexible tooth casees, to solve the problems mentioned in the above background technology.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions: a kind of flexible tooth case, including metal Screw rod, gear cavity shell, telescopic cavity shell, motor cavity shell, end cap, motor spindle, power supply terminal and damping device, the motor cavity shell Outside be evenly distributed with damping device, the bottom of the motor cavity shell is fixed by snap end cap, the side of the end cap It is connected with motor spindle by bearing, and the side of end cap has been correspondingly embedded in power supply terminal, the top of the motor cavity shell It is connected with telescopic cavity shell by card slot, gear cavity shell, the gear have been bolted at the top of the telescopic cavity shell The side of chamber shell is connected with metal screw by bearing, and the damping device is by jacking block, adjustable spring, column, rack gear, circle Stud wheel, the first fixed link, spring stack, first bevel gear, second bevel gear, the second fixed link, torque spring and damping chamber shell The inside correspondence of composition, the damping chamber shell is equipped with spring stack, and column, institute have been bolted at the top of the spring stack The side for stating column is provided with rack gear, and the two sides inner wall of the damping chamber shell is connected with the first fixed link, institute by bearing The outside for stating the first fixed link is socketed with roller gear, and Cylinder Gear wheel and rack is engagement connection, first fixed link One end is equipped with first bevel gear, and the inside of the damping chamber shell is correspondingly arranged on the second fixed link, second fixed link Outside is provided with torque spring, and the outside of second fixed link is socketed with second bevel gear, and second bevel gear and the first cone Gear is engagement connection, and external one end of the column is socketed with adjustable spring, and the top of column is by being welded with top Block.

Further, the motor cavity shell, telescopic cavity shell and gear cavity shell are a kind of component of metal material.

Further, the quantity of the damping device is three, and with the outside of motor cavity shell by being welded and fixed.

Further, the external even application of the side of the rack gear and roller gear has polyurethane lubricant coating.

Further, the top of the adjustable spring and the bottom of jacking block connect, and the bottom of adjustable spring and damping chamber The top of shell connects.

Compared with prior art, the utility model beneficial effect achieved is: the utility model, by being provided with metal The components such as screw rod, telescopic cavity shell and motor cavity shell, to compress inner space to reduce noise, and improve service life, greatly The practicability of the flexible tooth case is improved greatly；By being provided with the components such as adjustable spring, roller gear and column, solve because Motor, because of vibration, causes machine loss to increase and run jiggly problem when low speed is run, so that the flexible tooth case tool The characteristics of running smoothly.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the whole overlooking structure diagram of the utility model；

Fig. 3 is the damping device structural schematic diagram of the utility model；

In figure: 1, metal screw；2, gear cavity shell；3, telescopic cavity shell；4, motor cavity shell；5, end cap；6, motor spindle；7, Power supply terminal；8, damping device；9, jacking block；10, adjustable spring；11, column；12, rack gear；13, roller gear；14, first is solid Fixed pole；15, spring stack；16, first bevel gear；17, second bevel gear；18, the second fixed link；19, torque spring；20, damping Chamber shell.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of flexible tooth case, including metal screw 1, tooth Chamber shell 2, telescopic cavity shell 3, motor cavity shell 4, end cap 5, motor spindle 6, power supply terminal 7 and damping device 8 are taken turns, motor cavity shell 4 Outside is evenly distributed with damping device 8, and the bottom of motor cavity shell 4 is fixed by snap end cap 5, and the side of end cap 5 passes through axis It holds and is connected with motor spindle 6, and the side of end cap 5 has been correspondingly embedded in power supply terminal 7, the top of motor cavity shell 4 passes through card Slot is connected with telescopic cavity shell 3, and the top of telescopic cavity shell 3 has been bolted gear cavity shell 2, the side of gear cavity shell 2 It is connected with metal screw 1 by bearing, damping device 8 is by jacking block 9, adjustable spring 10, column 11, rack gear 12, Cylinder Gear Take turns the 13, first fixed link 14, spring stack 15, first bevel gear 16, second bevel gear 17, the second fixed link 18, torque spring 19 It is formed with damping chamber shell 20, the inside of damping chamber shell 20 is corresponding to be equipped with spring stack 15, and the top of spring stack 15 is solid by bolt Surely there is column 11, the side of column 11 is provided with rack gear 12, and the two sides inner wall of damping chamber shell 20 is connected with by bearing One fixed link 14, the outside of the first fixed link 14 is socketed with roller gear 13, and roller gear 13 is to engage connection with rack gear 12, One end of first fixed link 14 is equipped with first bevel gear 16, and the inside of damping chamber shell 20 is correspondingly arranged on the second fixed link 18, The outside of second fixed link 18 is provided with torque spring 19, and the outside of the second fixed link 18 is socketed with second bevel gear 17, and Two bevel gears 17 are to engage connection with first bevel gear 16, and external one end of column 11 is socketed with adjustable spring 10, and column 11 Top by being welded with jacking block 9；Motor cavity shell 4, telescopic cavity shell 3 and gear cavity shell 2 are a kind of structure of metal material Part, convenient for compression inner space；The quantity of damping device 8 is three, and with the outside of motor cavity shell 4 by being welded and fixed, just In playing better damping effect；The side of rack gear 12 and the external even application of roller gear 13 have polyurethane lubricant coating, Convenient for allowing rack gear 12 and roller gear 13 smoothly engaged transmission；The top of adjustable spring 10 is connect with the bottom of jacking block 9, and flexible The bottom of spring 10 is connect with the top of damping chamber shell 20, convenient for the vibration of preferably buffering upright 11 being subject to；When this is flexible When tooth case begins to use, since its gear cavity shell 2, telescopic cavity shell 3, motor cavity shell 4 are the component of metal material, on the one hand press It has contracted the inner space of each chamber shell, has allowed the compact-sized of the components such as internal gear and motor, generation when reducing component movement Noise, the wearability of another aspect metal is higher than plastic cement, improves service life, substantially increases the practical of the flexible tooth case Property；When this stretches the operation of tooth case low speed, motor cavity shell 4 generates vibration, damping chamber shell 20 between extraneous contact surface with Vibration, spring stack 15 started to compress by upward power, gives the downward power of damping chamber shell 20 to reduce vibration, while spring Column 15 gives column 11 upward thrust, and column 11 moves upwards and presses the adjustable spring 10 for being socketed in 11 top of column Contracting, adjustable spring 10 give damping chamber shell 20 downward counter-force, and column 11 also drives the rack gear 12 of one side to move upwards simultaneously, Rack gear 12 drives the roller gear 13 that is engaged with to rotate, roller gear 13 drive the first fixed link 14 and socket on it the The rotation of one bevel gear 16, the second bevel gear 17 engaged with first bevel gear 16 rotate, and drive the rotation of the second fixed link 18, socket Torque spring 19 outside the second fixed link 18 is compressed, and the reply that the second fixed link 18 rotates round about is given Power, above adjustable spring 10, torque spring 19 and spring stack 15 play the effect of bumper and absorbing shock, solve because motor exists Because of vibration when low speed is run, machine loss is caused to increase and run jiggly problem, so that the flexible tooth case has operation Steady feature.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of flexible tooth case, including metal screw (1), gear cavity shell (2), telescopic cavity shell (3), motor cavity shell (4), end cap (5), motor spindle (6), power supply terminal (7) and damping device (8), it is characterised in that: the outside of the motor cavity shell (4) is uniform It being distributed with damping device (8), the bottom of the motor cavity shell (4) is fixed by snap to be had end cap (5), and the one of the end cap (5) Side is connected with motor spindle (6) by bearing, and the side of end cap (5) has been correspondingly embedded in power supply terminal (7), the motor The top of chamber shell (4) is connected with telescopic cavity shell (3) by card slot, is bolted at the top of the telescopic cavity shell (3) Have gear cavity shell (2), the side of the gear cavity shell (2) is connected with metal screw (1), the damping device by bearing (8) by jacking block (9), adjustable spring (10), column (11), rack gear (12), roller gear (13), the first fixed link (14), spring Column (15), first bevel gear (16), second bevel gear (17), the second fixed link (18), torque spring (19) and damping chamber shell (20) it forms, the inside correspondence of the damping chamber shell (20) is equipped with spring stack (15), is passed through at the top of the spring stack (15) Bolt is fixed with column (11), and the side of the column (11) is provided with rack gear (12), in the two sides of the damping chamber shell (20) Wall is connected with the first fixed link (14) by bearing, and the outside of first fixed link (14) is socketed with roller gear (13), and roller gear (13) engages connection with rack gear (12), and one end of first fixed link (14) is equipped with the first cone The inside of gear (16), the damping chamber shell (20) is correspondingly arranged on the second fixed link (18), second fixed link (18) Outside is provided with torque spring (19), and the outside of second fixed link (18) is socketed with second bevel gear (17), and the second cone Gear (17) is to engage connection with first bevel gear (16), and external one end of the column (11) is socketed with adjustable spring (10), And the top of column (11) is by being welded with jacking block (9).

2. a kind of flexible tooth case according to claim 1, it is characterised in that: the motor cavity shell (4), telescopic cavity shell (3) It is a kind of component of metal material with gear cavity shell (2).

3. a kind of flexible tooth case according to claim 1, it is characterised in that: the quantity of the damping device (8) is three, And with the outside of motor cavity shell (4) by being welded and fixed.

4. a kind of flexible tooth case according to claim 1, it is characterised in that: the side of the rack gear (12) and roller gear (13) external even application has polyurethane lubricant coating.

5. a kind of flexible tooth case according to claim 1, it is characterised in that: the top of the adjustable spring (10) and jacking block (9) bottom connection, and the bottom of adjustable spring (10) is connect with the top of damping chamber shell (20).