Overload protection clutch disc, overload protection clutch assembly and electric flip driver

Abstract

The utility model discloses an overload protection clutch disc, an overload protection clutch assembly and an electric flip driver, the overload protection clutch disc comprises a rotation sleeve, the outer circumference of the rotation sleeve is provided with an elastic deformation part, the elastic deformation part at least comprises two deformation bodies with intervals, and the outer surface of each deformation body is provided with a tooth joint part. The overload protection clutch assembly comprises a power input gear, an inner gear ring is arranged on the power input gear, a rotary sleeve of a clutch disc is provided with a power output gear, and a tooth joint part of the clutch disc is meshed with the inner gear ring of the power input gear. The device further comprises an electric flip driver, a shell, a driving motor, a speed reducer, an output shaft and an overload protection clutch assembly. In order to improve the protection capability of the electrically-driven flip driver when the load is too large, ensure the stable operation of the electrically-driven flip driver in a humid environment and prolong the service life of the electrically-driven flip driver, a mechanical overload protection device which is small in friction, low in noise, stable in operation and long in service life needs to be designed urgently.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric flip cover drivers, and in particular relates to an overload protection clutch plate, an overload protection clutch component and an electric flip cover driver. Background Art

[0002] With continued economic growth and significant improvements in people's living standards, consumers are increasingly demanding bathroom appliances and even household appliances of all kinds. Intelligent and automated products are becoming a new favorite in the market. Driven by this trend, the intelligence and automation levels of products such as smart toilets, smart dishwashers, smart sinks, and smart washing machines are constantly improving. The automatic lid function is a key feature of these smart products, providing users with an unprecedented convenient experience.

[0003] Numerous electric flip-top actuators equipped with actuated cover plates are now available on the market. These actuators primarily consist of a motor, a reduction mechanism, and an actuator. The actuator is connected to the cover plate and, driven by the motor, increases torque through the reduction mechanism, thereby enabling the flipping and closing of the cover. However, in practice, when the device is overloaded—that is, when the rotational force of the driven part exceeds a certain limit—the DC motor is prone to stalling, causing a sharp increase in internal torque, which can lead to driver failure and render it inoperable, severely impacting the user experience and product reliability.

[0004] To address this issue, existing technologies often use electronic components for overload protection, such as thermal relays. However, since these products typically operate in a water environment, electronic components are easily damaged by moisture, thus seriously challenging their stability and durability in practical applications.

[0005] In summary, to overcome the shortcomings of the existing technology, improve the protection capabilities of the electric flip cover actuator against excessive loads, and simultaneously ensure stable operation in humid environments and extend its service life, it is urgently necessary to design a mechanical overload protection device with low friction, low noise, stable operation, and long service life. This application proposes an innovative technical solution based on this urgent need. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides an overload protection clutch plate, an overload protection clutch assembly and an electric flip cover driver.

[0007] The utility model is implemented as follows: an overload protection clutch plate is characterized in that it includes a rotating sleeve, the outer circumference of the rotating sleeve is provided with an elastic deformation portion, the elastic deformation portion includes at least two deformation bodies, adjacent deformation bodies are provided with a gap, and the outer surface of the deformation body is provided with a toothed portion.

[0008] Further preferably, the deformation body is a fan-shaped structure, and there are 2-7 deformation bodies.

[0009] Further preferably, the deformation body of the fan-shaped structure has an arc transition at the corner.

[0010] The utility model also discloses an overload protection clutch assembly, including a power input gear, characterized in that: an inner ring gear is provided on the power input gear, and the rotating sleeve of the clutch plate is coaxially mounted with a power output gear that rotates together with the clutch plate. The clutch plate adopts the above-mentioned overload protection clutch plate, and the tooth connection portion of the clutch plate is engaged with the inner ring gear of the power input gear.

[0011] Further preferably, the rotary sleeve and the power output gear are integrally provided.

[0012] Further preferably, the rotary sleeve is detachably connected to the power output gear.

[0013] Further preferably, a mounting hole is provided at the center of the rotating sleeve, at least one torsion surface for driving the rotating sleeve to rotate is provided in the mounting hole, and a torsion portion having the same cross-sectional shape as the mounting hole is provided on the power output gear on the overload protection component side.

[0014] Further preferably, the mounting hole is a D-shaped hole, a square hole, a diamond-shaped hole or an oblong hole.

[0015] Further preferably, a spline groove is provided at the center of the rotary sleeve, and a spline that cooperates with the spline groove is provided at the end of the power output gear.

[0016] The utility model also discloses an electric flip cover driver, a housing, a driving motor, a speed reducing device and an output shaft, which is characterized in that it also comprises the above-mentioned overload protection clutch component.

[0017] The advantages and technical effects of the present invention are as follows: The clutch plate, clutch assembly, and electric flip cover drive using the clutch assembly disclosed in the present invention demonstrate significant technical effects. The clutch plate can effectively absorb and disperse load energy when overloaded by designing an elastic deformation portion, thereby protecting the motor and other components from damage, and at the same time improving the stability and durability of the clutch plate. The clutch assembly further leverages the advantages of the clutch plate, and its unique overload protection design significantly improves the reliability and safety of the clutch assembly, making torque transmission more stable and preventing slipping or falling off. After adopting the clutch assembly, the technical effect of the electric flip cover drive has also been significantly improved. It can quickly cut off power transmission when overloaded, protect the drive motor and reduction device, extend the service life, and at the same time improve operational stability and safety, and reduce the risk of failure. In addition, the design of the clutch assembly also makes drive maintenance more convenient, reducing maintenance costs and complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the overload protection clutch plate of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the overload protection clutch assembly in Example 1 of the present utility model;

[0020] Figure 3 yes Figure 3 Middle AA section view;

[0021] Figure 4 1. It is a schematic diagram of the three-dimensional structure of the overload protection clutch assembly;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the overload protection clutch and the power output gear in Example 1;

[0023] Figure 6 This is a schematic diagram of the D-shaped hole structure of the mounting hole of the slewing sleeve of the overload protection clutch assembly;

[0024] Figure 7 This is a schematic diagram of the structure of the final stage input pinion that matches the D-shaped hole;

[0025] Figure 8 This is a schematic diagram of a square hole structure in which the mounting hole of the slewing sleeve of the overload protection clutch assembly is provided;

[0026] Figure 9 This is a schematic diagram of the structure of the final stage input pinion that fits with the square hole;

[0027] Figure 10 This is a schematic diagram of the structure of a diamond-shaped hole for the mounting hole of the slewing sleeve of the overload protection clutch assembly;

[0028] Figure 11 This is a schematic diagram of the structure of the final stage input pinion that matches the diamond hole;

[0029] Figure 12 This is a schematic diagram of the structure in which the mounting hole of the rotary sleeve of the overload protection clutch assembly is an oblong hole;

[0030] Figure 13 This is a schematic diagram of the structure of the final stage input pinion that matches the oblong hole;

[0031] Figure 14 This is a schematic diagram of the structure of a spline groove provided in the mounting hole of the rotary sleeve of the overload protection clutch assembly;

[0032] Figure 15 This is a schematic diagram of the structure of the final stage input pinion gear that cooperates with the spline groove;

[0033] Figure 16 It is a schematic diagram of the internal structure of the electric flip drive.

[0034] In the figure, 1, rotating sleeve; 1-1, mounting hole; 1-2, torsional surface; 1-3, spline groove; 2, elastic deformation part; 2-1, tooth connection part; 3, power input gear; 3-1, inner ring gear; 4, power output gear; 4-1, torsional part; 4-2, spline; 5, housing; 6, drive motor; 7, reduction gear; 8, output shaft. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] See also Figure 1 An overload protection clutch plate comprises a rotating sleeve 1 with an elastically deformable portion 2 formed on its outer circumference. This design allows the sleeve to deform when subjected to excessive load, thereby absorbing or dissipating some of the load energy and providing overload protection. The elastically deformable portion provides the clutch plate with a certain degree of buffering and adaptive capabilities under abnormal load conditions, preventing direct damage to the motor or other components.

[0037] The elastic deformable portion includes at least two deformable bodies. The design of multiple deformable bodies increases the overall deformability and load distribution of the elastic deformable portion. When a deformable body is subjected to a heavy load, the other deformable bodies provide additional support and cushioning, distributing the load more evenly across the entire elastic deformable portion, thereby improving the overall stability and durability of the clutch plate. Spacers are provided between adjacent deformable bodies. This spacing allows the deformable bodies to deform independently, allowing each deformable body to deform more freely according to the load conditions without being restricted by adjacent deformable bodies. This helps improve the clutch plate's adaptability and response speed to complex load conditions. The outer surface of each deformable body is provided with a toothed portion 2-1. The toothed portion increases the contact area and friction between the deformable body and external components, making the clutch plate more stable and reliable when transmitting torque. The toothed portion also provides a certain anti-slip effect, preventing the clutch plate from slipping or falling off when overloaded, thereby improving the safety and reliability of the clutch plate.

[0038] Further preferably, the deformable body is a fan-shaped structure, with 2-7 deformable bodies provided. In this embodiment, four deformable bodies are provided. Within this range, the clutch plate can maintain sufficient deformability and load distribution without the structural complexity and increased manufacturing costs caused by too many deformable bodies. This helps achieve a balance between performance and cost-effectiveness of the clutch plate.

[0039] Furthermore, the fan-shaped structure features arc transitions at the corners of the deformable body. This arc transition reduces stress concentration at the corners, making the clutch plate less susceptible to cracking or breaking when subjected to load. This helps improve the overall strength and durability of the clutch plate, extending its service life.

[0040] Please refer to the figure. The utility model also discloses an overload protection clutch assembly, including a power input gear 3, on which an inner ring gear 3-1 is provided. The rotating sleeve of the clutch plate is coaxially mounted with a power output gear 4 that rotates together with the clutch plate. The clutch plate adopts the above-mentioned overload protection clutch plate, and the tooth connection portion of the clutch plate is engaged with the inner ring gear of the power input gear.

[0041] The clutch assembly using the above-mentioned clutch plate has significant advantages: First, its unique overload protection design enables the clutch assembly to deform through the elastic deformation part of the clutch plate when the load is too large, effectively absorbing and dispersing the load energy, thereby avoiding damage to the motor or other components, and greatly improving the reliability and durability of the clutch assembly. Secondly, the tooth connection part on the clutch plate meshes with the inner ring of the power input gear, increasing the contact area and friction, making the torque transmission more stable and reliable, while preventing the occurrence of slipping or falling off, further improving the safety and stability of the clutch assembly. Finally, the clutch assembly has a simple and compact structure, is easy to manufacture and install, and has good economy and practicality. It can meet the use needs of various intelligent and automated bathroom appliances and household appliances, and provide users with a more convenient and safe use experience.

[0042] Further preferably, the rotary sleeve and the power output gear are integrally provided.

[0043] Further preferably, the rotary sleeve is detachably connected to the power output gear.

[0044] Further preferably, a mounting hole 1-1 is provided at the center of the rotating sleeve, and at least one torsion surface 1-2 for driving the rotating sleeve to rotate is provided in the mounting hole, and a torsion portion 4-1 having the same cross-sectional shape as the mounting hole is provided on the power output gear on the overload protection component side.

[0045] Further preferably, the mounting hole is a D-shaped hole (see Figure 6 and Figure 7 ), square hole (see Figure 8 and Figure 9 ), diamond holes (see Figure 10 and Figure 11 ) or oblong holes (see Figure 12 and Figure 13 ), it can also be a rectangle or a triangle.

[0046] For further optimization, please refer to Figure 14 and Figure 15 A spline groove 1-3 is provided at the center of the rotating sleeve, and a spline 4-2 is provided at the end of the power output gear 4 to cooperate with the spline groove.

[0047] The integrated setting or detachable connection between the slewing sleeve and the power output gear has its own characteristics in terms of technical effects. The specific analysis is as follows:

[0048] 1. The integrated arrangement of the slewing sleeve and the power output gear has the following technical effects:

[0049] Compact structure: The integrated setting makes the overall structure more compact, reduces the connectors and assembly space between components, helps to reduce the size and weight of the equipment and improve space utilization.

[0050] Transmission efficiency: Due to the reduction of clearance and friction between components, transmission efficiency may be improved, reducing energy loss.

[0051] Reliability: The integrated structure can better ensure the matching accuracy and strength between components in design and manufacturing, thereby improving the overall reliability and service life of the equipment.

[0052] Maintenance costs: Although the integrated structure may require replacement of the entire assembly during repair, problems caused by loose or worn parts during routine maintenance may be reduced, thereby reducing maintenance costs to a certain extent.

[0053] 2. The detachable connection between the slewing sleeve and the power output gear has the following technical effects:

[0054] Repairability: Detachable connections allow for easy replacement of damaged components without replacing the entire assembly, reducing repair difficulty and cost.

[0055] Flexibility: As needed, power output gears of different specifications or performances can be replaced to adapt to different working requirements, thus improving the flexibility of the equipment.

[0056] Modular design: Detachable connections help achieve modular design of the equipment, allowing each component to be manufactured and tested independently, improving production efficiency and quality control.

[0057] Cost considerations: For certain high-value or easily damaged parts, the use of detachable connections can reduce procurement costs to a certain extent, because users only need to purchase the parts that need to be replaced rather than the entire assembly.

[0058] Summarize

[0059] Both an integrated design and a detachable connection between the slewing sleeve and the PTO gear have their advantages. The integrated design is suitable for applications requiring compactness, transmission efficiency, and reliability; the detachable connection is more suitable for applications requiring frequent maintenance and component replacement or for achieving modular design. In practical applications, the appropriate connection method should be selected based on specific needs and conditions.

[0060] See also Figure 16 The utility model also discloses an electric flip cover driver, comprising a housing 5, a drive motor 6, a reduction gear 7 and an output shaft 8, and also includes the above-mentioned overload protection clutch assembly.

[0061] The electric flap driver used in electric toilet flaps has significantly improved its technical performance thanks to the addition of an overload protection clutch assembly. This improvement allows the driver to quickly and effectively cut off power transmission when an overload occurs, thereby preventing damage to the drive motor and reduction gear due to prolonged overload, effectively extending the driver's service life. At the same time, the addition of the overload protection clutch assembly also improves the driver's operational stability and safety, reducing the risk of failure due to accidental overload. Furthermore, the design of this component makes the driver more convenient to maintain. When an overload occurs, only the clutch assembly needs to be replaced or repaired, greatly reducing maintenance costs and complexity.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An overload protection clutch plate, characterized by: It comprises a rotary sleeve, wherein the outer circumference of the rotary sleeve is provided with an elastic deformation portion, the elastic deformation portion comprises at least two deformation bodies, adjacent deformation bodies are spaced apart, and the outer surface of the deformation body is provided with a toothed portion.

2. The overload protection clutch plate according to claim 1, characterized in that: The deformation body is a fan-shaped structure, and 2-7 deformation bodies are provided along the circumferential direction.

3. The overload protection clutch plate according to claim 2, characterized in that: The deformed body of the fan-shaped structure has an arc transition at the corner.

4. An overload protection clutch assembly, comprising a power input gear, characterized in that: An inner gear ring is provided on the power input gear, and the rotating sleeve of the clutch plate is coaxially mounted with a power output gear that rotates with the clutch plate. The clutch plate adopts the overload protection clutch plate described in any one of claims 1 to 3 above, and the tooth connection portion of the clutch plate is engaged with the inner gear ring of the power input gear.

5. The overload protection clutch assembly according to claim 4, characterized in that: The rotary sleeve and the power output gear are arranged integrally.

6. The overload protection clutch assembly according to claim 4, characterized in that: The rotary sleeve is detachably connected to the power output gear.

7. The overload protection clutch assembly according to claim 4, characterized in that: A mounting hole is provided at the center of the rotary sleeve, and at least one torsion surface for driving the rotary sleeve to rotate is provided in the mounting hole. A torsion portion having the same cross-sectional shape as that of the mounting hole is provided on the power output gear on the overload protection component side.

8. The overload protection clutch assembly according to claim 7, characterized in that: The mounting hole is a D-shaped hole, a square hole, a diamond hole or an oblong hole.

9. The overload protection clutch assembly according to claim 6, characterized in that: A spline groove is provided at the center of the rotary sleeve, and a spline that matches the spline groove is provided at the end of the power output gear.

10. An electric flip cover driver, comprising a housing, a drive motor, a speed reducer, and an output shaft, characterized in that: It also includes an overload protection clutch assembly using any one of the above 4 to 9.

Images