Anti-overloading assembly of speed reducing mechanism

Abstract

The utility model discloses an anti-overloading assembly of a speed reducing mechanism, the anti-overloading assembly comprises an outer tooth, an inner tooth and an elastic sheet, the elastic sheet is arranged between the outer tooth and the inner tooth, one end of the inner tooth is provided with a limiting groove, and the other end of the inner tooth is provided with a first gear; a plurality of connecting tables are arranged on one side of the elastic piece and matched with the limiting grooves, and a plurality of limiting bosses are arranged on the other side of the elastic piece. A second gear is arranged on the outer side of the outer tooth, a plurality of limiting clamping grooves are formed in an inner cavity of the outer tooth, and the limiting clamping grooves are matched with the limiting bosses; according to the technical scheme, the second gear is arranged on the outer side of the outer tooth, the limiting clamping grooves are formed in the inner cavity of the outer tooth, and the limiting clamping grooves are matched with the limiting bosses, so that the driving motor is prevented from being short-circuited or even damaged due to the fact that the driving motor is locked and continuously outputs, the use experience of a user is improved, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of smart home, in particular to a speed reduction mechanism anti-overload component, a speed reduction mechanism and a smart toilet lid driving device. Background Art

[0002] With the continuous development of society, smart devices are becoming more and more popular in daily life, such as smart toilets, smart dishwashers, smart sinks, washing machines, etc., and the degree of automation is also getting higher and higher; among them, those involving automatic flip-up function include smart toilets, smart dishwashers and smart sinks, which are all embodiments of automatic flip-up function. In the prior art, there is also a driven flip buffer, which mainly includes a driving motor, an elastic part and a limit table. The elastic part is rotated and squeezed by the driving motor connected to the cover to generate sufficient friction to buffer the toilet cover; there is also an electric driven flip buffer mainly including a flip gear box, which generally drives the motor to run through the control board to realize automatic flipping of the cover, and cooperates with the potentiometer component for induction detection. However, if the potentiometer component fails or does not work, the toilet cover fixed on the output shaft cannot be flipped after it is in place. The continuous output of the driving motor will cause the driving motor to be short-circuited and damaged, affecting the user experience and usage cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a speed reduction mechanism anti-overload component and a speed reduction mechanism and an intelligent toilet flip cover driving device which can prevent motor overload and reduce use costs.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A deceleration mechanism anti-overload component includes external teeth, internal teeth and a spring sheet, the spring sheet is arranged between the external teeth and the internal teeth, one end of the internal teeth is provided with a limiting groove, and the other end thereof is provided with a first gear; one side of the spring sheet is provided with a plurality of connecting platforms, which are adapted to the limiting grooves, and the other side thereof is provided with a plurality of limiting bosses; a second gear is provided on the outer side of the external teeth, and the inner cavity of the external teeth is provided with a plurality of limiting slots, which are adapted to the limiting bosses.

[0006] Preferably, the spring piece is a corrugated gasket.

[0007] Preferably, the outer teeth are concentrically arranged with the inner teeth.

[0008] Preferably, the inner cavity of the outer tooth is provided with a wear-resistant layer, and the wear-resistant layer is an alloy coating.

[0009] Preferably, the depth of the limiting slot is no more than 1 mm.

[0010] Preferably, a central shaft is provided at the center of the first gear, and the central shaft passes through the internal teeth.

[0011] The utility model also discloses a speed reduction mechanism with the speed reduction mechanism anti-overload component.

[0012] The utility model also discloses an intelligent toilet lid driving device using the deceleration mechanism.

[0013] By adopting the above technical solution, since one side of the gasket is provided with several connecting platforms, which are adapted to the limiting grooves, and the other side is provided with several limiting bosses; the outer side of the outer teeth is provided with a second gear, and the inner cavity of the outer teeth is provided with several limiting slots, which are adapted to the limiting slots, the driving motor is prevented from being locked and continuously outputting, causing a short circuit or even damage to the driving motor, thereby improving the user experience and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0016] Figure 3 This is a schematic diagram of the structure of the internal teeth of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the external teeth of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the shrapnel of the utility model;

[0019] Figure 6 It is a structural diagram of the reducer;

[0020] Figure 7 This is the structural explosion diagram of the reducer.

[0021] In the figure, 1-anti-overload assembly, 2-external teeth, 3-internal teeth, 4-spring, 5-limiting groove, 6-first gear, 7-connecting platform, 8-limiting boss, 9-second gear, 10-limiting slot, 11-center shaft, 12-planetary reduction mechanism, 13-cover, 14-drive motor, 15-reduction box, 16-planetary reducer, 17-mounting seat, 18-speed regulating gear, 19-first speed regulating gear, 20-second speed regulating gear, 21-gear ring seat, 22-potentiometer assembly, 23-end cover. DETAILED DESCRIPTION

[0022] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0023] like Figure 1-7 As shown, an anti-overload component of a speed reduction mechanism, the anti-overload component 1 includes an outer tooth 2, an inner tooth 3 and a spring piece 4, the spring piece 4 is arranged between the outer tooth 2 and the inner tooth 3, one end of the inner tooth 3 is provided with a limiting groove 5, and the other end thereof is provided with a first gear 6; one side of the spring piece 4 is provided with a plurality of connecting platforms 7, the connecting platforms 7 are adapted to the limiting groove 5, and the other side thereof is provided with a plurality of limiting protrusions 8; the outer side of the outer tooth 2 is provided with a second gear 9, and the inner cavity of the outer tooth 2 is provided with a plurality of limiting slots 10. In a normal state, the limiting slots 10 and the limiting protrusions The platforms 8 are adapted to transmit torque. The smaller the required torque protection force, the smaller the fit between the two. The limit boss 8 is slightly deformed, and the limit boss 8 is out of the limit slot 10, and vice versa. When overloaded, the limit boss 8 is repeatedly out of the limit slot 10 under the action of torque, unloading the load and achieving slippage, thereby playing an overload protection role to prevent the drive motor from burning due to overload. It also runs noiselessly, can achieve square and two-way protection, save resources, and reduce costs.

[0024] In addition, the spring piece 4 adopts a corrugated gasket to prevent the drive motor from burning due to overload.

[0025] Furthermore, the outer teeth 2 and the inner teeth 3 are arranged concentrically, which makes installation convenient and simple.

[0026] In addition, the inner cavity of the outer tooth 2 is provided with a wear-resistant layer, which is an alloy coating, thereby improving the wear resistance of the outer tooth 2 and increasing the service life of the equipment.

[0027] Furthermore, the depth of the limiting slot 10 is no more than 1 mm. In this embodiment, the depth of the slot is 0.8 mm, which transmits the torque of the driving motor and can also achieve the effect of slipping and unloading the load when overloaded.

[0028] In addition, a central shaft 11 is provided at the center of the first gear 6 , and the central shaft 11 passes through the inner teeth 3 .

[0029] The utility model also discloses a reduction mechanism with the above-mentioned reduction mechanism overload prevention component. In this embodiment, a planetary reduction mechanism 12 is preferably used. The planetary reduction mechanism 12 includes a drive motor 14 provided with a cover 13, a reduction box 15 connected to the drive motor 14, and a planetary reducer 16. The inner cavity of the reduction box 15 is provided with a mounting seat 17. The anti-overload component 1 and the speed regulating gear 18 are arranged on the mounting seat 17. A central shaft 11 is respectively provided between the anti-overload component 1 and the speed regulating gear 18 and the mounting seat.

[0030] The speed regulating gear 18 includes a primary speed regulating gear 19 and a secondary speed regulating gear 20. The primary speed regulating gear 19, the anti-overload component 1 and the secondary speed regulating gear 20 are installed in the reduction gear 15 in sequence. A ring gear seat 21 is provided at one end of the reduction gear 15, and the planetary reducer 16 is arranged in the inner cavity of the ring gear seat 21. One end of the planetary reducer 16 is connected to the secondary speed regulating gear 20, and the other end is connected to the potentiometer assembly 22; the potentiometer assembly 22 is arranged on the end cover 23, and the end cover 23 is arranged on one side of the ring gear seat 21. Seals are respectively provided between the end cover 23, the ring gear seat 21, the reduction gear 15 and the drive motor 14; stable operation at an instantaneous constant transmission ratio is achieved, while increasing the output torque, making the entire operation process smooth, and at the same time preventing the output shaft of the planetary reducer 16 from locking, causing the drive motor 14 to continuously output and cause short circuit or failure.

[0031] The present utility model also discloses an intelligent toilet lid driving device using the above-mentioned deceleration mechanism. In this embodiment, the power output shaft of the above-mentioned deceleration mechanism is connected to the executed part, for example, the executed part is a movable cover of a dishwasher, an intelligent toilet, or a washing machine.

[0032] The above-mentioned overload protection mechanism completely adopts a mechanical overload protection structure, which is reliable and has a long service life. Compared with overload protection devices such as electric clutch, it will not fail due to the external use environment; therefore, the overload protection mechanism of this structure is not restricted by the installation environment during actual use, which expands the application field and place of this mechanical overload protection device; the utility model can effectively provide overload protection, prevent the motor from burning due to overload, and at the same time reduce the probability of fire caused by motor burning, greatly improving the safety of product use; the electric flip-top drive using this structure is relatively small in size, has a large output torque, a compact structure, low friction, low noise, stable operation and a long service life; it avoids burning electronic components, generating market complaints, reducing the increase in maintenance service costs, and improving the smart home usage experience.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A speed reduction mechanism overload prevention component, characterized in that: The anti-overload component includes external teeth, internal teeth and a spring sheet, the spring sheet is arranged between the external teeth and the internal teeth, one end of the internal teeth is provided with a limiting groove, and the other end thereof is provided with a first gear; one side of the spring sheet is provided with a plurality of connecting platforms, which are adapted to the limiting grooves, and the other side thereof is provided with a plurality of limiting bosses; the outer side of the external teeth is provided with a second gear, and the inner cavity of the external teeth is provided with a plurality of limiting slots, which are adapted to the limiting bosses.

2. The speed reduction mechanism anti-overload assembly according to claim 1, characterized in that: The spring piece adopts a corrugated gasket.

3. The speed reduction mechanism overload prevention assembly according to claim 1, characterized in that: The outer teeth are arranged concentrically with the inner teeth.

4. The speed reduction mechanism overload prevention assembly according to claim 3, characterized in that: The inner cavity of the outer tooth is provided with a wear-resistant layer, and the wear-resistant layer is an alloy coating.

5. The speed reduction mechanism overload prevention assembly according to claim 1, characterized in that: The depth of the limiting slot is no more than 1 mm.

6. The speed reduction mechanism overload prevention assembly according to claim 1, characterized in that: A central shaft is provided at the center of the first gear, and the central shaft passes through the inner teeth.

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