A smart toilet seat gearbox structure

Abstract

This utility model discloses a gearbox structure for an intelligent toilet seat, including a gearbox body, a drive gear set structure, and a control circuit board. The seat cover has an output shaft. The drive gear set structure includes a drive motor, a transmission gear set, a transmission gear ring, an adjusting gear, and a control gear set. The adjusting gear includes a gear shaft and a transmission gear post fixed to the top of the gear shaft. A disc is fixed to the middle of the gear shaft, and the bottom surface of the disc has an arc-shaped protrusion. A spring and a positioning snap ring are provided at the lower part of the gear shaft. The top surface of the transmission gear ring has an arc-shaped groove. When the arc-shaped protrusion engages with the arc-shaped groove, the transmission gear post and the transmission gear ring rotate synchronously. When the arc-shaped protrusion disengages from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely. This utility model has a reasonable structural design. When the output shaft is jammed or encounters an obstacle, the transmission gear ring rotates freely, preventing damage to the drive motor and improving the smoothness and service life of the drive motor.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent toilet structure technology, specifically relating to an intelligent toilet seat gearbox structure. Background Technology

[0002] Existing smart toilet seats typically have structural components for controlling their opening and closing. These components are primarily driven by a gearbox to ensure smooth operation. The drive motor controls the flipping of the toilet seat via a transmission mechanism. However, in practical applications, the toilet seat may jam or encounter obstacles during flipping, causing the drive motor to fail to transmit power through the transmission mechanism. Over time, this can damage the drive motor, affecting the opening and closing of the toilet seat. Chinese patent application CN202111621708.5 discloses a toilet seat gearbox and a toilet. The gearbox includes a housing, a drive unit, a transmission unit, an output unit, and a protection unit. The drive unit includes a drive component, the output unit includes an output shaft, the transmission unit includes an end-transmission component, and the protection unit has multiple friction plates that press against each other and can rotate relative to each other. The end-transmission component can form a transmission with the output shaft through the friction plates pressing against each other in the protection unit.

[0003] While it can meet general usage needs, its structure still has significant limitations. For example, it cannot effectively solve the problem of jamming or stopping during the opening or closing of the toilet seat, thus making it difficult to achieve the ideal control effect, affecting the stability and reliability of use, and limiting its applicability. Utility Model Content

[0004] The purpose of this utility model is to provide a smart toilet seat gearbox structure that is reasonably designed and operates smoothly and reliably.

[0005] The technical solution to achieve the purpose of this utility model is an intelligent toilet seat gearbox structure, including a hollow gearbox body and an end cover and a face cover fixed on the gearbox body. The gearbox body is provided with a drive gear set structure and a control circuit board. The face cover is provided with an output shaft. The drive gear set structure includes a drive motor, a transmission gear set, a transmission gear ring, an adjusting gear, and a control gear set.

[0006] A drive gear is fixed on the main shaft of the drive motor, and the drive gear is driven by a transmission gear set and a transmission gear ring.

[0007] The adjusting gear includes a gear shaft and a transmission gear column fixed to the top of the gear shaft. A disc is fixed in the middle of the gear shaft. An arc-shaped protrusion is integrally formed on the bottom surface of the disc. A spring and a positioning snap ring are provided at the lower part of the gear shaft.

[0008] The top surface of the transmission gear ring is provided with an arc-shaped groove;

[0009] The lower part of the gear shaft passes through the transmission gear ring and is positioned by a positioning snap ring, and the disc is attached to the top surface of the transmission gear ring, with the spring piece located between the bottom surface of the transmission gear ring and the positioning snap ring.

[0010] The transmission gear column meshes with the control gear set, and the output shaft is connected to the control gear set;

[0011] When the arc-shaped protrusion is inserted into the arc-shaped groove, the transmission gear column and the transmission gear ring rotate synchronously. When the arc-shaped protrusion disengages from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely.

[0012] A further preferred embodiment is that the spring sheet includes an annular metal sheet, and an upwardly arched arc-shaped elastic portion is integrally stamped on the annular metal sheet.

[0013] A further preferred embodiment is that the control gear set includes an internal gear cylinder, a first annular plate, a plurality of first intermediate gears, a first circular plate, a second annular plate, a central gear, a plurality of second intermediate gears, and a circular shaft seat;

[0014] The first intermediate gear is connected between the first annular plate and the first circular plate via a shaft, and the transmission gear column passes through the center of the first annular plate and meshes with the inner side of the first intermediate gear;

[0015] The second annular plate is located on the top surface of the first circular plate, and the central gear is fixed on the top surface of the first circular plate and passes through the second annular plate.

[0016] The second intermediate gear is connected between the second annular plate and the circular shaft seat via a shaft, and the inner side of the second intermediate gear meshes with the central gear;

[0017] The bottom edges of the first annular plate, the second annular plate, and the circular shaft seat are all located inside the internal gear cylinder, and the outer sides of the first intermediate gear and the second intermediate gear are meshed with the inner tooth groove of the internal gear cylinder.

[0018] The output shaft is fixed to the center of the top surface of the circular shaft seat.

[0019] A further preferred embodiment is that two limiting blocks are fixed to the side of the circular shaft seat, and the two limiting blocks are located at both ends of the diameter of the circular shaft seat;

[0020] The circular shaft seat is provided with an external gear groove on its side, and the external gear groove is located on one side of the line connecting the two limiting blocks.

[0021] A stop protrusion is fixed to the top of the internal gear cylinder;

[0022] When the internal gear cylinder rotates, the abutting protrusion abuts against one of the limiting blocks and drives the circular shaft seat to rotate 180 degrees.

[0023] A further preferred embodiment is that a resistance regulator is fixed on the control circuit board, and a gear body is connected to the resistance regulator, the gear body meshing with an external gear groove;

[0024] The circular shaft seat rotates and drives the gear body on the resistor regulator to rotate through the external gear groove, and the resistor regulator transmits the adjustment signal to the control circuit board.

[0025] A further preferred embodiment is that the control circuit board has welding holes, and the terminal pins of the drive motor are welded and fixed to the control circuit board.

[0026] A further preferred embodiment is that at least two sealing gaskets are provided on the outer wall of the output shaft;

[0027] The output shaft passes through the panel, and the sealing gasket is located at the connection between the output shaft and the panel to achieve a sealed connection.

[0028] A further preferred embodiment is that the transmission gear set includes at least two double gears;

[0029] The transmission gear ring meshes with the small gear in the double gear at one end, and the drive gear meshes with the large gear in the double gear at the other end.

[0030] This utility model has positive effects: its structure is reasonably designed, and its adjusting gear includes a gear shaft and a transmission gear column fixed to the top of the gear shaft. A disc is fixed in the middle of the gear shaft, and the bottom surface of the disc is integrally formed with an arc-shaped protrusion. A spring and a positioning snap ring are provided at the lower part of the gear shaft. When the arc-shaped protrusion is inserted into the arc-shaped groove, the transmission gear column and the transmission gear ring rotate synchronously. When the arc-shaped protrusion is disengaged from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely. Therefore, when the toilet seat at the output shaft end is stuck or encounters an obstacle, the arc-shaped protrusion will disengage from the arc-shaped groove under the action of resistance, thereby allowing the transmission gear ring to rotate freely. At this time, the drive motor can rotate normally without causing damage to the drive motor. This is beneficial to improving the stability and service life of the drive motor and has strong applicability.

[0031] Furthermore, a resistance regulator is fixed on its control circuit board, and a gear body is connected to the resistance regulator. The gear body meshes with the external gear groove, so that when the internal gear cylinder rotates, it can drive the resistance regulator to move and achieve resistance adjustment. The corresponding resistance adjustment makes it easier for the control circuit board to determine the rotation position of the output shaft, thereby improving the control effectiveness and reliability.

[0032] Furthermore, at least two sealing gaskets are provided on the outer wall of the output shaft, which can improve the sealing and waterproof performance of the overall structure and extend its service life;

[0033] Furthermore, the control circuit board is equipped with soldering holes, and the terminal pins of the drive motor are soldered and fixed to the control circuit board. The leads of the drive motor are directly soldered and fixed to the control circuit board, which can improve the stability of use, prevent loosening or damage to the wires, and ensure the reliability of use. Attached Figure Description

[0034] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the internal structure of the present invention when the gearbox body and face cover are removed;

[0037] Figure 3 This is a schematic diagram of the exploded structure of the control gear set in this utility model when it is not disassembled;

[0038] Figure 4 This is a schematic diagram of the completely disassembled structure in this utility model;

[0039] Figure 5 This is a schematic diagram of the specific structure of the spring clip in this utility model.

[0040] Reference numerals: 1. Gearbox body; 2. End cover; 3. Face cover; 4. Drive gear set structure; 5. Control circuit board; 6. Output shaft; 7. Drive motor; 8. Transmission gear set; 9. Transmission gear ring; 10. Sealing gasket; 11. Adjusting gear; 111. Gear shaft; 112. Transmission gear column; 113. Disc; 114. Arc-shaped protrusion; 115. Spring; 116. Positioning snap ring; 12. Control gear set; 121. Inner gear cylinder; 122. First annular plate; 123. First intermediate gear; 124. Second annular plate; 125. Second intermediate gear; 126. Circular shaft seat; 127. Drive gear; 13. Arc-shaped groove; 14. Limiting block; 15. Outer gear groove; 16. Abutment protrusion; 17. Resistance regulator; 18. Gear body; 19. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example

[0043] See Figures 1 to 5 As shown, a smart toilet seat gearbox structure includes a hollow gearbox body 1 and an end cover 2 and a face cover 3 fixed on the gearbox body. The gearbox body is provided with a drive gear set structure 4 and a control circuit board 5. The face cover is provided with an output shaft 6. In this embodiment, the control circuit board is a conventional structure of the prior art, mainly used for drive control and adjustment of the drive motor. The gearbox body, end cover, face cover and output shaft are all conventional structures of the prior art, and are simply applied, so they are not described in detail.

[0044] In this embodiment, the drive gear set structure includes a drive motor 7, a transmission gear set 8, a transmission gear ring 9, an adjusting gear 11, and a control gear set 12; the drive motor is a conventional drive motor, and the transmission gear set includes at least two double gears.

[0045] Furthermore, a drive gear 13 is fixed on the main shaft of the drive motor, and the drive gear is driven by a transmission gear set and a transmission gear ring; that is, the drive gear meshes with the transmission gear set, and the transmission gear set meshes with the transmission gear ring.

[0046] The adjusting gear includes a gear shaft 111 and a transmission gear column 112 fixed to the top of the gear shaft. A disc 113 is fixed in the middle of the gear shaft, and an arc-shaped protrusion 114 is integrally formed on the bottom surface of the disc. A spring piece 115 and a positioning snap ring 116 are provided at the lower part of the gear shaft. It can connect and transmit with the transmission gear ring or disengage it to allow the transmission gear ring to rotate freely through the adjusting gear. The positioning snap ring is a conventional structure in the prior art, mainly used to position the gear shaft. At the same time, an arc-shaped groove 14 is provided on the top surface of the transmission gear ring. The number and height of the arc-shaped groove and the arc-shaped protrusion can be processed and set as needed. The main purpose is that under the elastic force of the spring piece, the arc-shaped protrusion engages or disengages with the arc-shaped groove, so as to achieve rotation together or free rotation separately.

[0047] During assembly, the lower part of the gear shaft passes through the transmission gear ring and is positioned by a positioning snap ring, and the disc is attached to the top surface of the transmission gear ring. The spring is located between the bottom surface of the transmission gear ring and the positioning snap ring. Furthermore, the transmission gear column meshes with the control gear set, and the output shaft is connected to the control gear set.

[0048] When the arc-shaped protrusion is inserted into the arc-shaped groove during use, the transmission gear column and the transmission gear ring rotate synchronously. When the arc-shaped protrusion disengages from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely.

[0049] In this embodiment, the spring sheet includes an annular metal sheet, and an upwardly arched arc-shaped elastic part is integrally stamped on the annular metal sheet. The annular metal sheet is a stainless steel sheet with a thickness of 3-10mm, and the height of the arc-shaped elastic part can be set as needed to ensure sufficient height for easy separation of the arc-shaped protrusion and the arc-shaped groove.

[0050] In this embodiment, the control gear set includes an internal gear cylinder 121, a first annular plate 122, a plurality of first intermediate gears 123, a first circular plate 124, a second annular plate 125, a central gear, a plurality of second intermediate gears 126, and a circular shaft seat 127; the central gear is located at the center of the plurality of second intermediate gears, which is not shown in the figure, but does not affect the understanding and implementation by those skilled in the art.

[0051] During assembly, the first intermediate gear is connected between the first annular plate and the first circular plate via a shaft. The transmission gear column passes through the center of the first annular plate and meshes with the inner side of the first intermediate gear. Simultaneously, the second annular plate is located on the top surface of the first circular plate, and the central gear is fixed on the top surface of the first circular plate, passing through the second annular plate. The second intermediate gear is connected between the second annular plate and the circular shaft seat via a shaft, and the inner side of the second intermediate gear meshes with the central gear. The bottom edges of the first annular plate, the second annular plate, and the circular shaft seat are all located inside the inner gear cylinder, and the outer sides of the first and second intermediate gears mesh with the inner tooth grooves of the inner gear cylinder. The output shaft is fixed to the center of the top surface of the circular shaft seat.

[0052] In use, the first intermediate gear drives the inner gear cylinder to rotate, and the rotation of the inner gear cylinder, in turn, causes the central gear to rotate via the second intermediate gear.

[0053] Furthermore, in practical applications, two limiting blocks 15 are fixed on the side of the circular shaft seat, and the two limiting blocks are located at both ends of the diameter of the circular shaft seat;

[0054] The circular shaft seat has an external gear groove 16 on its side, located on one side of the line connecting the two limit stops. A stop protrusion 17 is fixed to the top of the internal gear cylinder. When the internal gear cylinder rotates, the stop protrusion abuts against one of the limit stops, causing the circular shaft seat to rotate 180 degrees. A resistance regulator 18 is fixed on the control circuit board, and a gear body 19 is connected to the resistance regulator, meshing with the external gear groove. The rotation of the circular shaft seat drives the gear body on the resistance regulator to rotate via the external gear groove, and the resistance regulator transmits an adjustment signal to the control circuit board. The resistance regulator is only used in a simple application and is not described in detail. Through the above structure, the opening angle of the output shaft can be controlled by the resistance regulator. Different resistance adjustments are achieved by varying the rotation angle of the gear body, and a transmission signal is sent to the control circuit board. This helps determine the opening degree of the output shaft and the toilet seat sensor. It also effectively controls the drive motor's operation when the output shaft jams or encounters obstruction.

[0055] In this embodiment, the control circuit board is provided with soldering holes, and the terminal pins of the drive motor are soldered and fixed to the control circuit board. Soldering and fixing the terminal pins of the drive motor to the control circuit board not only ensures the stability and reliability of the connection, but also avoids damage to the wires when using them.

[0056] Furthermore, at least two sealing gaskets 10 are provided on the outer wall of the output shaft; the output shaft passes through the panel, and the sealing gaskets are located at the connection between the output shaft and the panel to achieve a sealed connection. This can improve the sealing and waterproof performance of the connection.

[0057] In this embodiment, the transmission gear ring meshes with the pinion of a double gear at one end, and the drive gear meshes with the large gear of a double gear at the other end. The double gear is a conventional structure in the prior art, where a large gear and a pinion are stacked as a single unit. The large gear connects to the output end, and the pinion also connects to the output end, thus ensuring the effectiveness and reliability of the transmission.

[0058] This utility model has positive effects: its structure is reasonably designed, and its adjusting gear includes a gear shaft and a transmission gear column fixed to the top of the gear shaft. A disc is fixed in the middle of the gear shaft, and the bottom surface of the disc is integrally formed with an arc-shaped protrusion. A spring and a positioning snap ring are provided at the lower part of the gear shaft. When the arc-shaped protrusion is inserted into the arc-shaped groove, the transmission gear column and the transmission gear ring rotate synchronously. When the arc-shaped protrusion is disengaged from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely. Therefore, when the toilet seat at the output shaft end is stuck or encounters an obstacle, the arc-shaped protrusion will disengage from the arc-shaped groove under the action of resistance, thereby allowing the transmission gear ring to rotate freely. At this time, the drive motor can rotate normally without causing damage to the drive motor. This is beneficial to improving the stability and service life of the drive motor and has strong applicability.

[0059] Furthermore, a resistance regulator is fixed on its control circuit board, and a gear body is connected to the resistance regulator. The gear body meshes with the external gear groove, so that when the internal gear cylinder rotates, it can drive the resistance regulator to move and achieve resistance adjustment. The corresponding resistance adjustment makes it easier for the control circuit board to determine the rotation position of the output shaft, thereby improving the control effectiveness and reliability.

[0060] Furthermore, at least two sealing gaskets are provided on the outer wall of the output shaft, which can improve the sealing and waterproof performance of the overall structure and extend its service life;

[0061] Furthermore, the control circuit board is equipped with soldering holes, and the terminal pins of the drive motor are soldered and fixed to the control circuit board. The leads of the drive motor are directly soldered and fixed to the control circuit board, which can improve the stability of use, prevent loosening or damage to the wires, and ensure the reliability of use.

[0062] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A smart toilet cover gear box structure, comprising a hollow gear box body and an end cover and a face cover fixed on the gear box body, a drive gear set structure and a control circuit board are arranged in the gear box body, an output shaft is arranged on the face cover, characterized in that: The drive gear set structure includes a drive motor, a transmission gear set, a transmission gear ring, an adjusting gear, and a control gear set; The drive gear of the drive motor is driven by a transmission gear set and a transmission gear ring. The adjusting gear includes a gear shaft with a transmission gear column at the top, a disc fixed in the middle of the gear shaft, an arc-shaped protrusion integrally formed on the bottom surface of the disc, and a spring and a positioning snap ring provided at the lower part of the gear shaft. The top surface of the transmission gear ring is provided with an arc-shaped groove; The lower part of the gear shaft passes through the transmission gear ring and is positioned by a positioning snap ring, and the disc is attached to the top surface of the transmission gear ring, with the spring piece located between the bottom surface of the transmission gear ring and the positioning snap ring. The transmission gear column meshes with the control gear set, and the output shaft is connected to the control gear set; When the arc-shaped protrusion is inserted into the arc-shaped groove, the transmission gear column and the transmission gear ring rotate synchronously. When the arc-shaped protrusion disengages from the arc-shaped groove and is on the top surface of the transmission gear ring, the transmission gear ring rotates freely.

2. The intelligent toilet seat gearbox structure according to claim 1, characterized in that: The spring sheet includes an annular metal sheet, and an upwardly arched arc-shaped elastic part is integrally stamped on the annular metal sheet.

3. The intelligent toilet seat gearbox structure according to claim 1, characterized in that: The control gear set includes an internal gear cylinder, a first annular plate, several first intermediate gears, a first circular plate, a second annular plate, a central gear, several second intermediate gears, and a circular shaft seat. The first intermediate gear is connected between the first annular plate and the first circular plate via a shaft, and the transmission gear column passes through the center of the first annular plate and meshes with the inner side of the first intermediate gear; The second annular plate is located on the top surface of the first circular plate, and the central gear is fixed on the top surface of the first circular plate and passes through the second annular plate. The second intermediate gear is connected between the second annular plate and the circular shaft seat via a shaft, and the inner side of the second intermediate gear meshes with the central gear; The bottom edges of the first annular plate, the second annular plate, and the circular shaft seat are all located inside the internal gear cylinder, and the outer sides of the first intermediate gear and the second intermediate gear are meshed with the inner tooth groove of the internal gear cylinder. The output shaft is fixed to the center of the top surface of the circular shaft seat.

4. The intelligent toilet seat gearbox structure according to claim 3, characterized in that: Two limiting blocks are fixed on the side of the circular shaft seat, and the two limiting blocks are located at both ends of the diameter of the circular shaft seat; The circular shaft seat is provided with an external gear groove on its side, and the external gear groove is located on one side of the line connecting the two limiting blocks. A stop protrusion is fixed to the top of the internal gear cylinder; When the internal gear cylinder rotates, the abutting protrusion abuts against one of the limiting blocks and drives the circular shaft seat to rotate 180 degrees.

5. The intelligent toilet seat gearbox structure according to claim 4, characterized in that: A resistor regulator is fixed on the control circuit board, and a gear body is connected to the resistor regulator. The gear body meshes with an external gear groove. The circular shaft seat rotates and drives the gear body on the resistor regulator to rotate through the external gear groove, and the resistor regulator transmits the adjustment signal to the control circuit board.

6. The intelligent toilet seat gearbox structure according to claim 1, characterized in that: The control circuit board is provided with soldering holes, and the terminal pins of the drive motor are soldered and fixed to the control circuit board.

7. The intelligent toilet seat gearbox structure according to claim 1, characterized in that: At least two sealing gaskets are provided on the outer wall of the output shaft; The output shaft passes through the panel, and the sealing gasket is located at the connection between the output shaft and the panel to achieve a sealed connection.

8. The intelligent toilet seat gearbox structure according to claim 1, characterized in that: The transmission gear set includes at least two double gears; The transmission gear ring meshes with the small gear in the double gear at one end, and the drive gear meshes with the large gear in the double gear at the other end.

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