Intelligent closestool planetary reducing mechanism and intelligent closestool

Abstract

The utility model provides an intelligent closestool planetary speed reducing mechanism and an intelligent closestool, the intelligent closestool planetary speed reducing mechanism comprises a gear set provided with a plurality of stages of planet wheels and a gear box, the plurality of stages of planet wheels are installed in the gear box, and inner teeth are arranged in the gear box and matched with the planet wheels at all stages; at least one interlayer is arranged in the gear box and located between every two adjacent stages of planet gears so as to prevent the two adjacent stages of planet gears from moving in the axial direction and squeezing each other. The interlayer is arranged in the gearbox middle shell, so that two adjacent stages of planetary gears can be separated, and the planetary gear trains cannot extrude each other when moving in the axial direction in the transmission process; the injection molding deformation of the middle shell of the gearbox can be improved, the meshing precision is improved, and the transmission efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of bathroom technology, and in particular to a planetary deceleration mechanism for an intelligent toilet and an intelligent toilet. Background Technology

[0002] With social development, smart toilets are becoming increasingly popular; among them, the automatic lid-opening function is gradually becoming a standard feature of smart toilets. Existing smart toilets use a planetary gear structure gearbox, where all levels of planetary gears are stacked together. During transmission, the planetary gears at each level will squeeze each other; especially in the high-speed transmission, when squeezed, the transmission efficiency will be greatly affected, resulting in a smaller transmission output torque and causing abnormal lid-opening function. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a planetary deceleration mechanism for an intelligent toilet and an intelligent toilet.

[0004] This utility model is implemented using the following method: a smart toilet planetary reduction mechanism, including a gear set with several stages of planetary gears and a gearbox, wherein the several stages of planetary gears are installed in the gearbox, and the gearbox has internal teeth that cooperate with each stage of the planetary gears; the gearbox has at least one partition, which is located between two adjacent stages of planetary gears to prevent the adjacent stages of planetary gears from moving and squeezing each other in the axial direction.

[0005] Preferably, the partition is provided along the inner circumferential surface of the gearbox to divide the space inside the gearbox into upper and lower regions along the axial direction, and the partition is also provided with through holes for the planetary gears to pass through.

[0006] Preferably, the gear set has three stages of planetary gears: a first-stage planetary gear, a second-stage planetary gear, and a third-stage planetary gear; the first-stage planetary gear is in drive engagement with the second-stage planetary gear, and the second-stage planetary gear is in drive engagement with the third-stage planetary gear; the first-stage, second-stage, and third-stage planetary gears are all located in the gearbox; a partition is provided between the first-stage and second-stage planetary gears; and / or, a partition is provided between the second-stage and third-stage planetary gears.

[0007] Preferably, the planet carrier of the third-stage planetary gear is provided with a second axial limiting step, which is matched with the end face of the gearbox away from the first-stage planetary gear.

[0008] Preferably, the gear set is connected to an output shaft; the output shaft extends out of the gearbox.

[0009] Preferably, the last stage planetary gear of the gear set is provided with a flat hole or a flat portion, and one end of the output shaft is provided with a flat portion or a flat hole. The flat portion is inserted into the flat hole, and the flat portion and the flat hole are interference-fitted.

[0010] Preferably, the outer peripheral surface of the output shaft is provided with a first axial limiting step, which is matched with the end face of the flat hole for limiting.

[0011] Preferably, the gearbox includes a front shell, a middle shell, and a rear shell, the front shell and the rear shell being detachably and fixedly installed at both ends of the middle shell, and the gear set and the partition being disposed inside the middle shell.

[0012] Preferably, the gearbox further includes a motor cavity in which a motor is installed. The motor engages with the first-stage planetary gear of the gear set by sequentially driving several stages of external gears.

[0013] A smart toilet includes a smart toilet seat, the smart toilet seat being provided with a planetary deceleration mechanism as described above.

[0014] The beneficial effects of this utility model are as follows: This utility model provides an intelligent toilet planetary reduction mechanism. Compared with the prior art, this utility model has at least the following technical effects: 1. By setting a partition inside the gearbox, two adjacent stages of planetary gears in each stage of the gear set can be separated, so that the planetary gears will not squeeze each other when moving axially during the transmission process; it can improve the injection molding deformation of the gearbox housing, improve the meshing accuracy, and help improve the transmission efficiency. 2. By dividing the space inside the gearbox into upper and lower parts axially through the partition, two adjacent stages of planetary gears installed in the gearbox housing are separated, reducing mutual squeezing and ensuring transmission efficiency. 3. A second axial limiting step is provided on the outer periphery of the planet carrier of the third-stage planetary gear. Its outer diameter is larger than the inner diameter of the inner hole, which can limit the axial movement of the third-stage planetary gear, further avoiding mutual squeezing of the planetary gear transmission and helping to improve the transmission efficiency. 4. The gear set is connected to an output shaft. The last stage planetary gear of the gear set is provided with a flat hole or a flat part. One end of the output shaft is provided with a flat part or a flat hole. The flat part is inserted into the flat hole. The flat part and the flat hole are interference-fitted to facilitate the fixing of planetary gears of different materials to the output shaft.

[0015] Compared with the prior art, the present invention provides an intelligent toilet with at least the following technical advantages: by using the aforementioned gearbox housing with partitions, the mutual compression of planetary gears during transmission is avoided, thereby greatly improving transmission efficiency. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of a planetary deceleration mechanism for an intelligent toilet according to this utility model.

[0017] Figure 2 This is a cross-sectional exploded view of a planetary deceleration mechanism for an intelligent toilet according to this utility model.

[0018] Figure 3 This is an exploded view of the output shaft and the planet carrier of the three-stage planetary gears of this utility model.

[0019] Figure 4 This is a schematic diagram of the middle shell of the gearbox of this utility model.

[0020] Figure 5 This is a schematic diagram of the external structure of a planetary deceleration mechanism for an intelligent toilet according to this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of a planetary deceleration mechanism for a smart toilet mounted on a smart toilet seat, according to this utility model.

[0022] Explanation of reference numerals: 1. Front shell; 2. Middle shell; 21. Partition; 22. Motor cavity; 23. Through hole; 3. Rear shell; 4. First-stage planetary gear; 5. Second-stage planetary gear; 6. Third-stage planetary gear; 61. Planetary carrier; 62. Flat hole; 63. Second axial limiting step; 7. Output shaft; 71. Flat part; 72. First axial limiting step; 8. Motor; 9. First-stage external gear; 10. Second-stage external gear; 11. Smart toilet seat. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Please see Figures 1 to 6 A planetary reduction mechanism for an intelligent toilet includes a gear set with several stages of planetary gears and a gearbox. The several stages of planetary gears are installed in the gearbox, which has internal teeth that mesh with each stage of the planetary gears. At least one partition 21 is provided within the gearbox, located between adjacent stages of planetary gears to prevent axial movement and mutual compression between adjacent stages of planetary gears. By providing a partition 21 along the axial direction within the gearbox, two stages of the planetary gears can be separated, preventing mutual compression during axial movement of the planetary gear system. This improves the injection molding deformation of the gearbox, enhances meshing accuracy, and contributes to increased transmission efficiency.

[0025] Please see Figures 1 to 6Preferably, the partition 21 is provided along the inner circumferential surface of the gearbox to divide the space inside the gearbox into upper and lower regions axially. The partition 21 is also provided with through holes 23 for the planetary gears to pass through. By dividing the inner hole of the gearbox housing 2 into upper and lower parts through the partition 21, two adjacent planetary gears installed in the gearbox housing 2 are separated, reducing mutual compression and ensuring transmission efficiency.

[0026] Please see Figures 1 to 6 Preferably, the gear set has three stages of planetary gears: a first-stage planetary gear 4, a second-stage planetary gear 5, and a third-stage planetary gear 6. The first-stage planetary gear 4 is in transmission engagement with the second-stage planetary gear 5, and the second-stage planetary gear 5 is in transmission engagement with the third-stage planetary gear 6. The first-stage planetary gear 4, the second-stage planetary gear 5, and the third-stage planetary gear 6 are all located in the gearbox. A partition 21 is provided between the first-stage planetary gear 4 and the second-stage planetary gear 5. And / or, a partition 21 is provided between the second-stage planetary gear 5 and the third-stage planetary gear 6. Specifically, in this embodiment, a partition 21 is provided between the first-stage planetary gear 4 and the second-stage planetary gear 5.

[0027] Please see Figure 3 , Figure 4 Preferably, the planet carrier 61 of the third-stage planetary gear 6 is provided with a second axial limiting step 63, which is matched with the end face of the gearbox away from the first-stage planetary gear 4. The second axial limiting step 63, with its outer diameter larger than the inner diameter of the gearbox's inner bore, restricts the axial movement of the third-stage planetary gear 6, further preventing mutual compression of the planetary gear system and improving transmission efficiency. Alternatively, the second axial limiting step 63 can be omitted, allowing the outer diameter of the planet carrier 61 to be larger than the inner diameter of the gearbox's inner shell 2, thus achieving the same axial limiting effect.

[0028] Please see Figures 1 to 5 Preferably, the gear set is connected to an output shaft 7; the output shaft 7 extends out of the gearbox.

[0029] Please see Figures 1 to 4Preferably, the last-stage planetary gear of the gear set has a flattened hole 62 or a flattened portion 71, and one end of the output shaft 7 has a flattened portion 71 or a flattened hole 61. The flattened portion 71 is inserted into the flattened hole 62, and the flattened portion 71 and the flattened hole 62 are press-fitted together. The outer circumferential surface of the output shaft 7 has a first axial limiting step 72, which limits the end face of the flattened hole 62. The output shaft 7 is mounted on the output end of the planet carrier 61 of the third-stage planetary gear 6 with a flattened hole 62, and the first axial limiting step 72 is provided on the output shaft 7, which helps to quickly align and install the output shaft 7 with the planet carrier 61 of the third-stage planetary gear 6. Preferably, the output shaft 7 is made of metal, such as stainless steel, and the planet carrier 61 is manufactured using metal metallurgy processes.

[0030] Please see Figures 1 to 5 Preferably, the gearbox includes a front housing 1, a middle housing 2, and a rear housing 3. The front housing 1 and the rear housing 3 are detachably and fixedly installed at both ends of the middle housing 2, and the gear set and the partition 21 are disposed inside the middle housing. This facilitates installation and disassembly.

[0031] Please see Figures 1 to 5 Preferably, the planet carrier 61 of the third-stage planetary gear 6 of the gear set is fixedly connected to the output shaft 7, and the flat hole 62 is provided at the end of the planet carrier 61 of the third-stage planetary gear 6 away from the second-stage planetary gear 5. The output shaft 7 extends out of the front housing 1.

[0032] Please see Figures 1 to 5 Preferably, the gearbox housing 2 further includes a motor cavity 22, in which a motor 8 is installed. The motor 8 engages with the first-stage planetary gear of the gear set via a series of external gears (e.g., first-stage external gear 9, second-stage external gear 10). This provides a transmission function, driving the rotation of the planetary gears. The first-stage external gear 9 and second-stage external gear 10 are located between the gearbox rear housing 3 and the gearbox housing 2. The housing 2, front housing 1, and rear housing 3 are connected together by fasteners.

[0033] Please see Figure 6 A smart toilet includes a smart toilet seat 11, wherein the smart toilet seat 11 is equipped with a planetary reduction mechanism as described above. By employing the aforementioned gearbox with partitions 21, mutual compression between planetary gears during transmission is avoided, significantly improving transmission efficiency.

[0034] The working principle of this utility model is as follows:

[0035] Because a partition 21 is provided inside the gearbox housing 2, the first-stage planetary gear 4 is installed from the bottom of the housing 2, and the second-stage planetary gear 5 and the third-stage planetary gear 6 are installed sequentially from the top of the housing 2. Then, the first-stage external gear 9, the second-stage external gear 10, the output shaft 7, the motor 8, the front housing 1, and the rear housing 3 are assembled. Due to the presence of the partition 21 in the housing 2 and the second axial limiting step 63 on the planet carrier 61 of the corresponding third-stage planetary gear 6, the axial movement of the first-stage planetary gear 4, the second-stage planetary gear 5, and the third-stage planetary gear 6 is restricted, which can effectively prevent mutual compression between the planetary gear trains of each stage and help improve transmission efficiency.

[0036] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0039] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A planetary reduction mechanism for an intelligent toilet, comprising a gear set with several stages of planetary gears, and a gearbox, wherein the several stages of planetary gears are installed in the gearbox, characterized in that: The gearbox has internal teeth that mesh with the planetary gears of each stage; the gearbox has at least one partition between two adjacent planetary gears to prevent them from moving and squeezing each other in the axial direction.

2. The planetary deceleration mechanism for an intelligent toilet according to claim 1, characterized in that: The partition is provided along the inner circumferential surface of the gearbox to divide the space inside the gearbox into upper and lower regions along the axial direction. The partition is also provided with through holes for the planetary gears to pass through.

3. The intelligent toilet planetary reduction mechanism according to claim 2, characterized in that: The gear set has three stages of planetary gears: a first-stage planetary gear, a second-stage planetary gear, and a third-stage planetary gear. The first-stage planetary gear is in drive engagement with the second-stage planetary gear, and the second-stage planetary gear is in drive engagement with the third-stage planetary gear. The first-stage, second-stage, and third-stage planetary gears are all located in the gearbox. A partition is provided between the first-stage and second-stage planetary gears; and / or, a partition is provided between the second-stage and third-stage planetary gears.

4. The planetary deceleration mechanism for an intelligent toilet according to claim 3, characterized in that: The planet carrier of the third-stage planetary gear is provided with a second axial limiting step, which is matched with the end face of the gearbox away from the first-stage planetary gear.

5. The planetary deceleration mechanism for an intelligent toilet according to claim 1, characterized in that: The gear set is connected to an output shaft; the output shaft extends out of the gearbox.

6. The planetary deceleration mechanism for an intelligent toilet according to claim 5, characterized in that: The final planetary gear of the gear set is provided with a flat hole or a flat portion, and one end of the output shaft is provided with a flat portion or a flat hole. The flat portion is inserted into the flat hole, and the flat portion and the flat hole are interference-fitted.

7. The intelligent toilet planetary deceleration mechanism according to claim 6, characterized in that: The outer circumferential surface of the output shaft is provided with a first axial limiting step, which is matched with the end face limiting of the flat hole.

8. The planetary deceleration mechanism for an intelligent toilet according to claim 1, characterized in that: The gearbox includes a front shell, a middle shell, and a rear shell. The front shell and the rear shell are detachably fixed to both ends of the middle shell, and the gear set and the partition are disposed inside the middle shell.

9. The planetary deceleration mechanism for an intelligent toilet according to claim 1, characterized in that: The gearbox also has a motor cavity, in which a motor is installed. The motor drives several stages of external gears in sequence, thereby engaging with the first stage planetary gear of the gear set.

10. A smart toilet, including a smart toilet seat, characterized in that: The smart toilet seat is equipped with a planetary deceleration mechanism as described in any one of claims 1-9.

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