An electric mop with multi-stage deceleration function

Abstract

This utility model discloses an electric mop with multi-stage deceleration function, belonging to the field of electric mop technology. It includes a mop handle, with a deceleration mechanism located at the bottom of the lower inner cavity of the mop handle. A mop head is detachably mounted on the output end of the deceleration mechanism. This utility model incorporates a primary planetary deceleration mechanism and a secondary planetary deceleration mechanism into an existing electric mop, and sets a high-low speed conversion assembly between the two deceleration mechanisms, consisting of an outer one-way bearing, an inner one-way bearing, and a bearing sleeve. When the motor rotates forward, the inner one-way bearing is locked, and the outer one-way bearing rotates freely. The secondary planetary deceleration mechanism performs high-speed, low-torque motion under the constraint of the bearing sleeve to achieve the spin-drying function. When the motor rotates in reverse, the outer one-way bearing is locked, the inner one-way bearing rotates freely, and the secondary planetary deceleration mechanism intervenes to achieve multi-stage deceleration, outputting a low-speed, high-torque cleaning function.

Description

Technical Field

[0001] This utility model relates to the field of electric mop technology, and in particular to an electric mop with multi-stage deceleration function. Background Technology

[0002] An electric mop is a household cleaning product equipped with an electric motor, typically used for mopping floors. It works by using the high-speed rotational force generated by the motor to drive the brush head for cleaning. Compared to traditional mops, electric mops eliminate the need for manual effort, making floor cleaning much easier.

[0003] One type of electric mop controls the speed and torque of a high-power motor by adjusting the frequency and voltage of a control circuit board during spin-drying and washing. The motor is usually located inside the mop bucket. The high-power motor drives the mop head to rotate in the water source and filter cartridge through different speeds to achieve washing and spin-drying. This method places high demands on the motor and control circuit board. After long-term use, it will increase the failure rate of the motor and circuit. Moreover, if the sealing of the water bucket is reduced, it will lead to the risk of damage to the motor and circuit, which will not be conducive to the stable use of the electric mop.

[0004] Another type of electric mop uses a motor mounted on the mop to drive the mop head to swing and mop the floor. This type of electric mop is mostly manually held in a bucket of water to wring dry and wash, which is time-consuming and laborious.

[0005] To address the aforementioned issues, an electric mop with multi-stage deceleration function is proposed. Utility Model Content

[0006] The main purpose of this utility model is to provide an electric mop with multi-stage deceleration function, which solves the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved by adopting the following technical solution:

[0008] An electric mop with multi-stage deceleration function includes a mop handle, a deceleration mechanism is provided at the bottom of the lower inner cavity of the mop handle, and a mop head is detachably installed on the output end of the deceleration mechanism;

[0009] The reduction mechanism includes a drive motor fixedly installed on the inner wall of the lower rod. The drive motor has a motor shaft formed on it. A primary planetary reduction mechanism fixed in the inner wall of the lower rod is fitted to the end of the motor shaft. A high-low speed conversion assembly is provided at the bottom of the primary planetary reduction mechanism. A secondary planetary reduction mechanism is provided at the bottom of the high-low speed conversion assembly.

[0010] Furthermore, the primary planetary reduction mechanism includes a sun gear formed on the motor shaft, planetary gears meshing around the sun gear, an internal gear ring fixed to the inner wall of the lower rod and guided around the planetary gears, and a planet carrier fixedly installed at the bottom of the planetary gears.

[0011] Furthermore, the planetary carrier output shaft is fixedly connected to the bottom of the planetary carrier and is rotatably mounted to the bottom of the internal gear ring.

[0012] Furthermore, the high-low speed conversion assembly includes an outer one-way bearing fixed to the inner wall of the lower rod, a bearing sleeve fixed in the inner ring of the outer one-way bearing, an inner one-way bearing embedded in the inner wall of the bearing sleeve, and the planetary carrier output shaft passing through and fixed to the inner ring of the inner one-way bearing.

[0013] Furthermore, the bearing sleeve has a T-shaped column structure, the bottom of the bearing sleeve is separated from the bottom of the outer one-way bearing and is rotatably installed, the bottom of the bearing sleeve is separated from the inner wall of the lower rod and is rotatably installed, and a boss is provided on the bottom wall of the bearing sleeve.

[0014] Furthermore, the secondary planetary reduction mechanism includes a sun gear, planetary gears, an internal gear ring, and a planet carrier with the same structure as the primary planetary reduction mechanism. The sun gear is fixed to the bottom of the output shaft of the planet carrier, and a power output shaft is fixedly connected to the bottom of the planet carrier. The top of the internal gear ring of the secondary planetary reduction mechanism is fixedly connected to the boss by screws. The secondary planetary reduction mechanism is rotatably mounted to the inner wall of the lower rod, and the power output shaft is rotatably mounted to the bottom wall of the mop handle.

[0015] Furthermore, the power output shaft passes through the shaft hole at the bottom of the lower rod and is connected to a mop head via a thread.

[0016] Furthermore, the top of the drive motor is connected to a lithium battery fixed in the lower rod via a wire, and the top of the lithium battery is connected to a control circuit board fixed in the upper rod of the mop handle via a wire. The control circuit board has a gear switch embedded in the outer wall of the upper rod and a start switch embedded in the top of the upper rod.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] This invention incorporates a primary planetary reduction mechanism and a secondary planetary reduction mechanism into an existing electric mop. A high-low speed conversion assembly, consisting of an outer one-way bearing, an inner one-way bearing, and a bearing sleeve, is installed between the two reduction mechanisms. When the motor rotates forward, the inner one-way bearing locks, while the outer one-way bearing rotates freely. The secondary planetary reduction mechanism, limited by the bearing sleeve, performs high-speed, low-torque spin-drying. When the motor rotates in reverse, the outer one-way bearing locks, while the inner one-way bearing rotates freely. The secondary planetary reduction mechanism intervenes and achieves multi-stage reduction, outputting a low-speed, high-torque cleaning function. This approach reduces the drawbacks of traditional electric mops that rely on high-precision circuit boards and motors for spin-drying and cleaning. It allows ordinary motors to be compactly installed within the mop handle, improving user convenience and reducing the production and maintenance costs of electric mops, thus promoting their widespread adoption. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of a preferred embodiment of an electric mop with multi-stage deceleration function according to the present invention;

[0020] Figure 2 This is an exploded view of a preferred embodiment of an electric mop with multi-stage deceleration function according to the present invention;

[0021] Figure 3 This is a front view of an exploded view of the deceleration mechanism components in a preferred embodiment of an electric mop with multi-stage deceleration function according to the present invention;

[0022] Figure 4 This is a bottom view of an exploded view of the deceleration mechanism components in a preferred embodiment of an electric mop with multi-stage deceleration function according to the present invention;

[0023] Figure 5 This is a partial cross-sectional view showing the connection relationship between the deceleration mechanism and the inner wall of the mop handle in a preferred embodiment of an electric mop with multi-stage deceleration function according to the present invention.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Mop handle; 2. Mop head; 3. Gear switch; 4. Reduction mechanism; 401. Drive motor; 402. Motor shaft; 403. Primary planetary reduction mechanism; 403a. Sun gear; 403b. Planetary gear; 403c. Planetary carrier; 403d. Internal gear ring; 404. Planetary carrier output shaft; 405. High / low speed conversion assembly; 405a. External one-way bearing; 405b. Internal one-way bearing; 405c. Bearing sleeve; 406. Secondary planetary reduction mechanism; 407. Power output shaft; 5. Control circuit board; 6. Lithium battery; 7. Start switch. Detailed Implementation

[0026] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0027] like Figures 1-5 As shown, this embodiment provides an electric mop with multi-stage deceleration function, including a mop handle 1. A deceleration mechanism 4 is provided at the bottom of the lower inner cavity of the mop handle 1. A mop head 2 is detachably installed on the output end of the deceleration mechanism 4. The deceleration mechanism 4 includes a drive motor 401 fixedly installed on the inner wall of the lower handle. A motor shaft 402 is formed on the drive motor 401. A primary planetary deceleration mechanism 403 fixed in the inner wall of the lower handle is installed at the end of the motor shaft 402. A high-low speed conversion assembly 405 is provided at the bottom of the primary planetary deceleration mechanism 403. A secondary planetary deceleration mechanism 406 is provided at the bottom of the high-low speed conversion assembly 405.

[0028] In the above structure, the drive motor 401 is a common motor, and the primary planetary reduction mechanism 403 and the secondary planetary reduction mechanism 406 are configured in several stages.

[0029] The primary planetary reduction mechanism 403 includes a sun gear 403a formed on the motor shaft 402, a planetary gear 403b meshing around the sun gear 403a, an inner gear ring 403d fixed to the inner wall of the lower rod and guided around the planetary gear 403b, and a planet carrier 403c fixedly installed at the bottom of the planetary gear 403b.

[0030] The planetary carrier 403c is fixedly connected to the bottom of the planetary carrier output shaft 404, which is rotatably mounted to the bottom of the internal gear ring 403d. The planetary carrier output shaft 404 is used to output the speed after being reduced by the primary planetary reduction mechanism 403. The primary planetary reduction mechanism 403 is a necessary reduction mechanism 4 when the motor outputs.

[0031] The high-low speed conversion assembly 405 includes an outer one-way bearing 405a fixed to the inner wall of the lower rod, a bearing sleeve 405c fixed in the inner ring of the outer one-way bearing 405a, an inner one-way bearing 405b embedded in the inner wall of the bearing sleeve 405c, and a planetary carrier output shaft 404 passing through and fixed to the inner ring of the inner one-way bearing 405b.

[0032] In the above structure, the inner one-way bearing 405b rotates in reverse and is locked in forward, while the outer one-way bearing 405a rotates in forward and is locked in reverse.

[0033] The bearing sleeve 405c has a T-shaped column structure. The bottom of the bearing sleeve 405c is separated from the bottom of the outer one-way bearing 405a and is rotatably installed. The bottom of the bearing sleeve 405c is separated from the inner wall of the lower rod and is rotatably installed. A boss is provided on the bottom wall of the bearing sleeve 405c.

[0034] In the above structure, the bearing sleeve 405c rotates with the inner ring of the outer one-way bearing 405a and is locked in place.

[0035] The secondary planetary reduction mechanism 406 includes a sun gear 403a, planet gear 403b, internal gear ring 403d, and planet carrier 403c, which have the same structure as the primary planetary reduction mechanism 403. The sun gear 403a is fixed to the bottom of the planet carrier output shaft 404. The bottom of the planet carrier 403c is fixedly connected to the power output shaft 407. The top of the internal gear ring 403d of the secondary planetary reduction mechanism 406 is fixedly connected to the boss by screws. The secondary planetary reduction mechanism 406 is rotatably mounted to the inner wall of the lower rod, and the power output shaft 407 is rotatably mounted to the bottom wall of the mop handle 1.

[0036] In the above structure, the bearing sleeve 405c and the secondary planetary reduction mechanism 406 are fixedly connected. When the outer one-way bearing 405a rotates, the bearing sleeve 405c and the secondary planetary reduction mechanism 406 rotate together at high speed. At this time, only the primary planetary reduction mechanism 403 is engaged. When the outer one-way bearing 405a is locked, the bearing sleeve 405c and the secondary planetary reduction mechanism 406 are locked together and their rotation is stopped. At this time, the secondary planetary reduction mechanism 406 is engaged to achieve multi-stage reduction.

[0037] The power output shaft 407 passes through the shaft hole at the bottom of the lower rod and is connected to the mop head 2 by a thread.

[0038] The top of the drive motor 401 is connected to a lithium battery 6 fixed in the lower rod via a wire. The top of the lithium battery 6 is connected to a control circuit board 5 fixed in the upper rod of the mop handle 1 via a wire. The control circuit board 5 has a gear switch 3 embedded in the outer wall of the upper rod and a start switch 7 embedded in the top of the upper rod.

[0039] In the above structure, the control circuit board 5 is equipped with a voice broadcast function. When the mop is operated by the gear switch 3, the working mode can be played.

[0040] The working principle of this device is as follows:

[0041] When using this device, start switch 7 starts the device to power on, and gear switch 3 has three modes: 1st gear for forward rotation, 2nd gear for reverse rotation, and 3rd gear for automatic mode.

[0042] In forward rotation mode, the control circuit board 5 starts the drive motor 401 to drive the motor shaft 402 and the sun gear 403a to rotate forward. The planetary gear 403b in the primary planetary reduction mechanism 403 rotates around the inner gear ring 403d, driving the planet carrier 403c to drive the planet carrier output shaft 404 to rotate. The planet carrier output shaft 404 is locked by the inner one-way bearing 405b in the high and low speed rotation assembly. The inner one-way bearing 405b reacts to the bearing sleeve 405c to rotate in the inner ring of the outer one-way bearing 405a. The bearing sleeve 405c drives the secondary planetary reduction mechanism 406 at the bottom to rotate along the inner wall of the mop handle 1. At the same time, the secondary planetary reduction mechanism 406 drives the bottom power output shaft 407 to rotate, transmitting power to the mop head 2 to achieve a high-speed rotation of 1100 rpm. The mop head 2 can be spun dry in the filter screen inside the external cleaning box.

[0043] In reverse mode, the planetary carrier output shaft 404 rotates freely in the one-way bearing 405b. At this time, the outer one-way bearing 405a is locked. The inner ring locks the bearing sleeve 405c, and the bearing sleeve 405c locks the inner gear ring 403d in the secondary planetary reduction mechanism 406. The sun gear 403a at the end of the planetary carrier output shaft 404 drives the planet gear 403b in the secondary planetary reduction mechanism 406 to rotate, thereby realizing the intervention of the secondary planetary reduction mechanism 406 to reduce speed. The power output shaft 407 rotates at a low speed of 100 rpm with high torsion, which can clean the mop head 2 in the water source in the external cleaning bucket.

[0044] In automatic mode, by pressing the gear switch 3 three times, the control circuit board 5 will complete the washing or spin-drying according to the set program, without the need for manual control.

[0045] By adopting the above structure, the drawbacks of traditional electric mops that rely on high-precision circuit boards and motors for spin-drying and washing are reduced. This allows ordinary motors to be compactly installed inside the mop handle, avoiding water leakage that could damage the circuit and motor. It also solves the problem of another type of mop that can only swing to mop the floor and requires manual washing and spin-drying, which is time-consuming and laborious. The device is convenient for users to carry and use, has a simple structure that is easy to maintain, and has low production costs, which is conducive to its widespread use.

[0046] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

[0047] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

Claims

1. An electric mop having a multi-stage reduction function, comprising a mop rod (1), characterized in that: The mop handle (1) has a deceleration mechanism (4) at the bottom of the lower inner cavity, and a mop head (2) is detachably installed on the output end of the deceleration mechanism (4). The deceleration mechanism (4) includes a drive motor (401) fixedly installed on the inner wall of the lower rod. A motor shaft (402) is formed on the drive motor (401). A primary planetary deceleration mechanism (403) fixed in the inner wall of the lower rod is installed at the end of the motor shaft (402). A high-low speed conversion assembly (405) is provided at the bottom of the primary planetary deceleration mechanism (403). A secondary planetary deceleration mechanism (406) is provided at the bottom of the high-low speed conversion assembly (405).

2. The electric mop with multi-stage speed reduction function according to claim 1, characterized in that: The primary planetary reduction mechanism (403) includes a sun gear (403a) formed on the motor shaft (402), a planetary gear (403b) meshing around the sun gear (403a), an inner gear ring (403d) fixed to the inner wall of the lower rod and guided around the planetary gear (403b), and a planet carrier (403c) fixedly installed at the bottom of the planetary gear (403b).

3. The electric mop with multi-stage speed reduction function according to claim 2, characterized in that: The planetary carrier (403c) has a fixedly connected output shaft (404) that is rotatably mounted to the bottom of the internal gear ring (403d).

4. The electric mop with multi-stage speed reduction function according to claim 3, characterized in that: The high-low speed conversion assembly (405) includes an outer one-way bearing (405a) fixed to the inner wall of the lower rod, a bearing sleeve (405c) fixed in the inner ring of the outer one-way bearing (405a), an inner one-way bearing (405b) embedded in the inner wall of the bearing sleeve (405c), and the planetary carrier output shaft (404) passing through and fixed to the inner ring of the inner one-way bearing (405b).

5. The electric mop with multi-stage speed reduction function according to claim 4, characterized in that: The bearing sleeve (405c) has a T-shaped column structure. The bottom of the bearing sleeve (405c) is separated from the bottom of the outer one-way bearing (405a) and is rotatably installed. The bottom of the bearing sleeve (405c) is separated from the inner wall of the lower rod and is rotatably installed. A boss is provided on the bottom wall of the bearing sleeve (405c).

6. The electric mop with multi-stage speed reduction function according to claim 5, characterized in that: The secondary planetary reduction mechanism (406) includes a sun gear (403a), planet gears (403b), an internal gear ring (403d), and a planet carrier (403c) with the same structure as the primary planetary reduction mechanism (403). The sun gear (403a) is fixed to the bottom of the planet carrier output shaft (404). The bottom of the planet carrier (403c) is fixedly connected to a power output shaft (407). The top of the internal gear ring (403d) of the secondary planetary reduction mechanism (406) is fixedly connected to the boss by screws. The secondary planetary reduction mechanism (406) is rotatably mounted to the inner wall of the lower rod. The power output shaft (407) is rotatably mounted to the bottom wall of the mop handle (1).

7. The electric mop with multi-stage speed reduction function according to claim 6, characterized in that: The power output shaft (407) passes through the shaft hole at the bottom of the lower rod and is connected to the mop head (2) by thread.

8. The electric mop with multi-stage speed reduction function according to claim 1, characterized in that: The top of the drive motor (401) is connected to a lithium battery (6) fixed in the lower rod via a wire. The top of the lithium battery (6) is connected to a control circuit board (5) fixed in the upper rod of the mop handle (1) via a wire. The control circuit board (5) has a gear switch (3) embedded in the outer wall of the upper rod and a start switch (7) embedded in the top of the upper rod.

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