Cleaning equipment and driving device

Abstract

The present disclosure relates to a cleaning device and a driving device. The cleaning device of the present disclosure includes: a body, a cleaning device and a driving device. The cleaning device rotates relative to the body and has an inner cavity to clean the working surface; the driving device has a heat dissipation duct and extends into the inner cavity of the cleaning device; the driving device is provided with a through hole connecting the heat dissipation duct and the inner cavity, and a sealing mechanism for sealing the through hole; when the driving device and the cleaning device are assembled together, the cleaning device is constructed to push the sealing mechanism to move to a first position to open the through hole; when the cleaning device is removed from the driving device, the cleaning device is constructed to push the sealing mechanism to move to a second position to close the through hole. In the cleaning device of the present disclosure, when the cleaning device is removed from the driving device, the through hole is sealed by the sealing mechanism, so that impurities such as external water vapor will not enter the interior of the driving device through the through hole.

Description

Technical Field

[0001] The present invention relates to the field of cleaning technology, and in particular to a cleaning device and a driving device. Background Art

[0002] With the development of social productivity, people's living standards have also been improved. Under the premise of ensuring the material basis, people began to use a variety of tools to reduce labor and improve the quality of life, and household cleaning equipment came into being.

[0003] Currently, the motor of most floor scrubbers on the market is located outside the roller brush, with the drum motor's torque transmitted to the brush via a transmission. This installation structure is complex and takes up a lot of space. To address this issue, a built-in motor installation method can be adopted, where the motor is inserted into the inner cavity of the roller brush, thus saving installation space. While placing the motor inside the drum saves installation space, when the user replaces the drum, the motor leaks out, and moisture from the outside enters the motor, affecting its performance and lifespan. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a cleaning device and a driving device.

[0005] According to a first aspect of the present invention, there is provided a cleaning device comprising:

[0006] body;

[0007] A cleaning device configured to rotate relative to the machine body to clean the work surface; the cleaning device having an inner cavity;

[0008] A driving device having a heat dissipation duct and configured to extend into the inner cavity of the cleaning device; the driving device is provided with a through hole communicating the heat dissipation duct and the inner cavity, and a sealing mechanism for sealing the through hole;

[0009] When the driving device and the cleaning device are assembled together, the cleaning device is configured to push the sealing mechanism to move to a first position to open the through hole; when the cleaning device is removed from the driving device, the cleaning device is configured to push the sealing mechanism to move to a second position to close the through hole.

[0010] In one embodiment of the present disclosure, the driving device is a motor assembly, including a motor housing and a motor cover mounted on the outside of the motor housing; the through hole is arranged on the motor cover; the sealing mechanism includes a moving part arranged between the motor cover and the motor housing, and a pushing part radially extending from the moving part to the outside of the motor cover, and the cleaning device is constructed to push the pushing part to drive the moving part to move between a first position and a second position.

[0011] In one embodiment of the present disclosure, a through hole is provided on the moving part; the moving part is constructed to move to a first position so that the through hole is at least partially aligned with the through hole to open the through hole; or to move to a second position so that the through hole is completely staggered with the through hole to close the through hole.

[0012] In one embodiment of the present disclosure, there are multiple through holes arranged in a circumferential direction around the motor cover; the moving part is cylindrical and sleeved between the motor cover and the motor housing; there are multiple through holes correspondingly arranged, and the multiple through holes are arranged in a circumferential direction around the moving part.

[0013] In one embodiment of the present disclosure, a through hole is provided on the side wall of the motor cover, and the pushing portion is constructed to extend radially outward from the moving portion and pass through the through hole; in the direction from the first position to the second position, the through hole has a size for the pushing portion to be displaced.

[0014] In one embodiment of the present disclosure, the moving portion is configured to always seal the through hole during movement.

[0015] In one embodiment of the present disclosure, the pushing portion is configured to form a rubber encapsulation structure on the outer side of the motor cover so as to always seal the through hole during the movement.

[0016] In one embodiment of the present disclosure, the size of the through hole decreases in the direction from the first position to the second position; or, the through hole forms a constriction opening at a position corresponding to the position between the first position and the second position.

[0017] In one embodiment of the present disclosure, the outer diameter of the motor cover end gradually decreases from the first position to the second position; and the moving part is constructed to have a shape that matches the motor cover end.

[0018] In one embodiment of the present disclosure, a plurality of the pushing parts are provided, which are arranged in a circumferential direction around the moving part and are configured to be interference fit with the circumferential inner wall of the cleaning device.

[0019] In one embodiment of the present disclosure, a groove is provided on the inner wall of the cleaning device, and the groove is configured to accommodate the pushing portion when the pushing portion moves to the first position.

[0020] In one embodiment of the present disclosure, the cleaning device is a cleaning roller, and the rotation axis of the cleaning roller is parallel to the working surface; the inner cavity passes through the first and second opposite ends of the cleaning roller; the driving device extends from the first end of the cleaning roller into the inner cavity of the cleaning roller and is transmission-connected to the cleaning roller; the second end of the cleaning roller is rotatably connected to the machine body.

[0021] In one embodiment of the present disclosure, the external air flow is configured to enter the heat dissipation duct from the connection end between the drive device and the body, and enter the inner cavity of the cleaning roller through the heat dissipation duct; or, the external air flow is configured to enter the inner cavity from the second end of the cleaning roller, flow through the heat dissipation duct and then flow out.

[0022] In one embodiment of the present disclosure, a coupling is provided at the output end of the driving device, and a transmission seat is provided in the inner cavity of the cleaning roller; the coupling is constructed to be in pluggable transmission connection with the transmission seat.

[0023] According to a second aspect of the present invention, there is further provided a driving device having a heat dissipation duct configured to extend into an inner cavity of a cleaning device; the driving device is provided with a through hole connecting the heat dissipation duct and the inner cavity, and a sealing mechanism for sealing the through hole;

[0024] When the driving device and the cleaning device are assembled together, the cleaning device is configured to push the sealing mechanism to move to a first position to open the through hole; when the cleaning device is removed from the driving device, the cleaning device is configured to push the sealing mechanism to move to a second position to close the through hole.

[0025] The cleaning device disclosed herein incorporates a sealing mechanism within the drive unit. When the cleaning unit and the drive unit are assembled, a through hole in the drive unit can be opened to connect the cooling duct within the drive unit with the inner cavity of the cleaning unit, thereby facilitating heat dissipation from the drive unit. When the cleaning unit is removed from the drive unit, the through hole can be sealed by the sealing mechanism to prevent external impurities such as moisture from entering the interior of the drive unit through the through hole.

[0026] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0028] Figure 1 It is a schematic structural diagram of the cleaning device disclosed herein;

[0029] Figure 2 is another structural schematic diagram of the cleaning device disclosed herein;

[0030] Figure 3 is a cross-sectional view of the cleaning apparatus disclosed herein;

[0031] Figure 4 This is a schematic diagram of the structure of the cleaning device disclosed herein with the cleaning roller removed;

[0032] Figure 5 is a cross-sectional schematic diagram of an embodiment of the cleaning device disclosed herein;

[0033] Figure 6 yes Figure 5 A partial enlarged view of the middle sealing mechanism;

[0034] Figure 7 is a cross-sectional schematic diagram of another embodiment of the cleaning device disclosed herein;

[0035] Figure 8 yes Figure 7 A partial enlarged view of the middle sealing mechanism;

[0036] Figure 9 This is a schematic diagram of the structure of the hole in one embodiment of the cleaning device disclosed herein;

[0037] Figure 10 It is a structural schematic diagram of the through-hole in another embodiment of the cleaning device disclosed herein.

[0038] Reference numerals:

[0039] 1. Machine body, 2. Cleaning roller, 21. Inner cavity, 22. Groove, 3. Motor assembly, 31. Motor housing, 32. Motor cover, 321. Through hole, 33. Through hole, 34. Coupling, 35. Transmission seat, 36. Output shaft, 4. Sealing mechanism, 41. Moving part, 411. Through hole, 42. Pushing part, 5. Cooling air duct. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0042] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] The cleaning device disclosed herein may be a cleaning device familiar to those skilled in the art, such as a sweeping robot, a scrubber robot, or a handheld scrubber, and includes a body, a cleaning device for cleaning a work surface, and a drive device that is transmission-connected to the cleaning device and drives the cleaning device. The cleaning device has an inner cavity, and one end of the drive device may be fixedly connected to the body, while the other end extends into the inner cavity of the cleaning device and is transmission-connected to the cleaning device, thereby driving the cleaning device.

[0046] The drive unit is also provided with a heat dissipation duct and a through-hole. The heat dissipation duct communicates with the inner cavity of the cleaning device through the through-hole. The heat dissipation duct draws in external airflow to dissipate heat from within the drive unit. Furthermore, to prevent moisture and other impurities from entering the drive unit through the through-hole after the cleaning device is removed from the drive unit, potentially damaging the drive unit, the drive unit is also provided with a sealing mechanism for sealing the through-hole.

[0047] In the cleaning equipment disclosed herein, during the assembly process of the cleaning device and the driving device, the cleaning device will push the sealing mechanism to move to the first position to open the through hole and connect the heat dissipation duct with the inner cavity of the cleaning device; during the disassembly process of the cleaning device from the driving device, the cleaning device will push the sealing mechanism to move to the second position to seal the through hole to prevent external impurities such as water vapor from entering the interior of the driving device through the through hole.

[0048] The cleaning device disclosed herein incorporates a sealing mechanism within the drive unit. When the cleaning unit and the drive unit are assembled, a through-hole in the drive unit can be opened to connect the cooling duct within the drive unit with the inner cavity of the cleaning unit, thereby facilitating heat dissipation from the drive unit. When the cleaning unit is removed from the drive unit, the through-hole can be sealed by the sealing mechanism, preventing impurities such as moisture from entering the interior of the drive unit through the through-hole, potentially damaging the drive unit and reducing its service life.

[0049] For ease of understanding, please refer to the attached Figures 1 to 10 , the specific structure and working principle of the present disclosure are explained in detail with reference to the embodiments.

[0050] Example 1

[0051] See also Figure 1 and Figure 2 The cleaning device disclosed in the present invention includes a body 1, which is used to carry various components in the cleaning device, such as batteries, dust boxes, sewage tanks and other components well known to those skilled in the art. The specific structure and function of the cleaning device are determined by the present invention, and the present invention does not limit it here. A cleaning device is provided on the body 1, and the cleaning device is used to clean the work surface. The cleaning device is provided with an inner cavity 21, and a driving device for driving the cleaning device to move is connected in a transmission manner in the inner cavity 21. One end of the driving device is connected to the body 1, and the other end extends into the inner cavity 21 of the cleaning device. The driving device is directly in contact with the cleaning device for transmission connection, and there is no need to set up an additional transmission component for connection. The transmission connection method can be a transmission connection method known to those skilled in the art, such as card connection, bevel gear connection, etc., which will not be described in detail here.

[0052] The drive device is provided with a heat dissipation duct 5 and a through hole 33. Through the through hole 33, the heat dissipation duct 5 communicates with the inner cavity 21 of the cleaning device. When the drive device is operating, the heat dissipation duct 5 utilizes the principle of negative pressure to draw air from the outside to dissipate heat from the internal structure of the drive device. When the drive device is separated from the cleaning device, the through hole 33 is exposed to the external environment. Impurities such as moisture in the external environment can enter the drive device through the through hole 33, causing damage to the drive device.

[0053] To solve the above problems, see Figure 8 The driving device is also provided with a sealing mechanism 4, which can seal the through hole 33 on the driving device after the cleaning device is separated from the driving device to prevent external impurities such as water vapor from entering the interior of the driving device. When the cleaning device and the driving device are assembled together, see Figure 7 and Figure 8, the cleaning device will drive the sealing mechanism 4 to move to the first position, at which time the sealing mechanism 4 opens the through hole 33, so that the heat dissipation duct 5 can absorb the external air flow to dissipate heat for the driving device. Figure 5 and Figure 6 During the separation process, the cleaning device drives the sealing mechanism 4 to move to the second position, and the sealing mechanism 4 seals the through hole 33 to prevent external impurities such as water vapor from entering the driving device through the through hole 33.

[0054] In one embodiment of the present disclosure, Figure 1 、 Figure 2 、 Figure 3 As shown, the cleaning device can be a cylindrical cleaning roller 2, and the rotation axis of the cleaning roller 2 is parallel to the working surface. The inner cavity 21 of the cleaning roller 2 runs through its opposite first end and second end. Cleaning cotton, bristles or other components for cleaning can be provided on the outer surface of the cleaning roller 2. The driving device can be a motor assembly 3, one end of the motor assembly 3 is connected to the body 1, and the other end extends into the inner cavity 21 of the cleaning roller 2 through the first end of the cleaning roller 2, and is connected to the cleaning roller 2 by transmission, so that the motor assembly 3 can provide support for the cleaning roller 2. The second end of the cleaning roller 2 is rotatably connected to the body 1, so that the body 1 can provide support for the second end of the cleaning roller 2. Through the rotation of the output end of the motor assembly 3, the cleaning roller 2 can be driven to rotate relative to the body 1 to complete the cleaning of the working surface.

[0055] When the cleaning device of the present invention starts working, the motor assembly 3 drives the cleaning roller 2 to rotate and clean the working surface. The external airflow enters the heat dissipation duct 5 in the motor assembly 3 through the connection end between the motor assembly 3 and the body 1 to dissipate heat from the inside of the motor assembly 3. The airflow after heat dissipation enters the inner cavity 21 of the cleaning roller 2 through the through hole 33 on the motor assembly 3. Since the airflow after heat dissipation carries a certain amount of heat, it can dry out some of the water vapor that enters the inner cavity 21 of the cleaning roller 2 during the cleaning process, and then flows out to the outside world from the end where the cleaning roller 2 is connected to the body 1, that is, the second end of the cleaning roller 2. Of course, the external airflow can also enter the inner cavity 21 of the cleaning roller 2 through the second end of the cleaning roller 2, and then enter the internal heat dissipation of the motor assembly 3 through the through hole 33 on the motor assembly 3, and finally flow out to the outside world from the connection end between the motor assembly 3 and the body 1. The present invention does not impose any restrictions on this.

[0056] In one embodiment of the present disclosure, see Figure 5 and Figure 6The motor assembly 3 includes a motor housing 31 and a motor cover 32 disposed outside the motor housing 31. Of course, those skilled in the art will appreciate that the motor assembly 3 also includes a stator and a rotor disposed within the motor housing 31, which will not be further described here. The motor housing 31 is generally configured to have a shape that is compatible with the inner cavity 21 of the cleaning roller 2, such as a cylindrical shape. The motor cover 32 is similar in shape to the motor housing 31 and is also cylindrical overall.

[0057] A portion of the heat dissipation duct 5 is located between the motor housing 31 and the motor cover 32. A through hole 33 is provided on the motor cover 32 to connect the heat dissipation duct 5 with the inner cavity 21 of the cleaning roller 2. A sealing mechanism 4 is provided between the motor housing 31 and the motor cover 32 and includes a moving portion 41 and a pushing portion 42. The moving portion 41 is located between the motor housing 31 and the motor cover 32 and corresponds to the position of the through hole 33. The pushing portion 42 is connected to the moving portion 41 and is configured to extend radially outward from the moving portion 41 to the outside of the motor cover 32. When the cleaning roller 2 is assembled or disassembled from the motor assembly 3, the cleaning roller 2 pushes the pushing portion 42 on the sealing mechanism 4, causing the moving portion 41 to move between the first position and the second position to open or seal the through hole 33.

[0058] In the embodiment of the present disclosure, the direction from the first position to the second position is the disassembly direction of the cleaning roller 2, and the direction from the second position to the first position is the installation direction of the cleaning roller 2. Figure 5 From the perspective of FIG, the first position is located to the left of the second position, that is, the sealing mechanism 4 can move rightward from the first position to the second position, and leftward from the second position to the first position. When the user holds the cleaning roller 2 and moves it to the left to install the cleaning roller 2, the inner wall of the cleaning roller 2 and the pushing portion 42 have an interference fit, so that the pushing portion 42 can be pressed to move leftward to the first position to open the through hole 33. When the user holds the cleaning roller 2 and moves it to the right to remove the cleaning roller 2, the inner wall of the cleaning roller 2 and the pushing portion 42 have an interference fit, so that the pushing portion 42 can be pressed to move leftward to the second position, thereby sealing the through hole 33.

[0059] In a specific embodiment of the present disclosure, see Figure 7 and Figure 8A through hole 411 is provided on the moving part 41. When the cleaning roller 2 and the motor assembly 3 are assembled together, the through hole 411 is at least partially aligned with the through hole 33 on the motor cover 32 to open the through hole 33 and connect the heat dissipation duct 5 with the inner cavity 21 of the cleaning roller 2. In other embodiments of the present disclosure, the shapes of the through hole 33 and the through hole 411 can also be consistent. When the cleaning roller 2 and the motor assembly 3 are assembled together, they are completely aligned. When the cleaning roller 2 is removed from the motor assembly 3, the cleaning roller 2 pushes the pushing part 42 on the sealing mechanism 4, driving the moving part 41 to move to the second position. At this time, the through hole 411 is completely staggered with the through hole 33 on the motor cover 32. The through hole 33 is sealed by the moving part 41 to prevent external impurities such as water vapor from entering the interior of the motor assembly 3 and causing damage to the motor assembly 3.

[0060] In one embodiment of the present disclosure, a plurality of through holes 33 are provided on the motor cover 32, which are arranged in a circumferential direction around the motor cover 32. By providing a plurality of through holes 33, the circulation speed of the external air flow can be accelerated, thereby improving the efficiency of heat dissipation. In order to open and seal the multiple through holes 33 on the motor cover 32, in this embodiment, the shape of the moving part 41 is also cylindrical, and a plurality of through holes 411 are also provided thereon. The multiple through holes 411 are arranged around the moving part 41, and are consistent in number with the through holes 33 on the motor cover 32, and the positions correspond to each other. When the cleaning roller 2 and the motor assembly 3 are assembled together, the multiple through holes 33 and the multiple through holes 411 can be at least partially aligned, so that the heat dissipation duct 5 is connected to the inner cavity 21 of the cleaning roller 2 to dissipate heat from the motor assembly 3.

[0061] In order to enable the pushing portion 42 to extend from the motor cover 32, in one embodiment of the present disclosure, see Figure 4 A through-hole 321 is provided on the surface of the motor cover 32. The through-hole 321 extends from a first position toward a second position. The length of the extension can be the same as the distance from the first position to the second position, or it can be greater than the distance between the first position and the second position. The pushing portion 42 on the sealing mechanism 4 extends radially outward from the moving portion 41 and passes through the through-hole 321 to the outside of the motor cover 32. The through-hole 321 restricts the direction and distance of the pushing portion 42 under the push of the cleaning roller 2. Therefore, the sealing mechanism 4 can only move within the through-hole 321 under the push of the cleaning roller 2.

[0062] In one embodiment of the present disclosure, when the pushing portion 42 moves in the through hole 321, since the moving portion 41 is always located between the motor cover 32 and the motor housing 31, the through hole 321 can be sealed by the moving portion 41 to prevent external impurities such as water vapor from entering the interior of the motor assembly 3 through the through hole 321 after the cleaning roller 2 is removed from the motor assembly 3.

[0063] In one embodiment of the present disclosure, the outer side of the push portion 42 can be provided with a rubber coating structure, which always seals the through hole 321 and the push portion 42 together. In addition, the rubber coating structure does not affect the movement of the push portion 42. This is because the rubber coating structure has good deformation ability. When the cleaning roller 2 and the motor assembly 3 are assembled or disassembled, the cleaning roller 2 can squeeze the rubber coating structure in the process of driving the push portion 42 to move, causing a certain deformation.

[0064] In another embodiment of the present disclosure, a plurality of pushers 42 are provided. Figure 4 There are four pushers 42 arranged around the moving part 42. There are also four through-holes 321 on the motor cover 32, one corresponding to each of the pushers 42. Providing multiple pushers 42 allows the cleaning roller 2 to push the multiple pushers 42 when assembling or disassembling the cleaning roller 2 and the motor assembly 3, so that the thrust exerted on the moving part 41 is more uniform.

[0065] In order to ensure the stability of the push part 42 in the through hole 321, the push part 42 will not move in the through hole 321 due to the shaking of the cleaning equipment during operation, causing the through hole 33 to be sealed and the motor assembly 3 to be unable to dissipate heat, or after the cleaning roller 2 is removed from the motor assembly 3, the push part 42 will move in the through hole 321, causing the through hole 33 to be opened, and impurities such as external water vapor will enter the interior of the motor assembly 3, causing damage to the motor assembly 3. In one embodiment of the present disclosure, the through hole 321 can form a beam opening at a position between the first position and the second position. Figure 10 The size of the middle portion of the through hole 321 is smaller than the sizes of the opposite ends of the through hole 321, so that the through hole 321 forms a "gourd"-shaped structure.

[0066] When the pushing portion 42 is in the first position, the pushing portion 42 can be stuck in the first position through the tie mouth, and will not easily cross the area of ​​the tie mouth and move in the direction of the second position. When the user needs to remove the cleaning roller 2 from the motor assembly 3, the cleaning roller 2 is pulled with a greater force, so that the cleaning roller 2 generates a greater force on the pushing portion 42, thereby overcoming the obstruction of the tie mouth on the pushing portion 42, and moving the pushing portion 42 from the first position to the second position, thereby sealing the through hole 33 on the motor cover 32. In addition, the pushing portion 42 in the second position will also be blocked in the second position by the tie mouth, so that the pushing portion 42 will not easily move from the second position to the first position and open the through hole 33. Only when the user assembles the cleaning roller 2, will it move from the first position to the second position and open the through hole 33 under the drive of the cleaning roller 2.

[0067] In another embodiment of the present disclosure, the shape of the through hole 321 can be not only the shape of the constriction in the above embodiment, but also Figure 9 , it can also be a shape in which the width of the through-hole 321 gradually decreases in the direction from the first position to the second position. When the cleaning roller 2 and the motor assembly 3 are assembled together, the pushing portion 42 is located in the first position, and the width of the through-hole 321 at the first position is larger, and the width of the through-hole 321 at the second position is smaller. When the user removes the cleaning roller 2 from the motor assembly 3, the pushing portion 42 moves from the first position to the second position, and the width of the through-hole 321 gradually decreases. After the pushing portion 42 moves to the second position, the pushing portion 42 can be interference-fitted with the through-hole 321, so that the pushing portion 42 can be stuck in the through-hole 321, preventing the pushing portion 42 from being subjected to external force and moving in the direction of the first position, so that the through-hole 33 is opened.

[0068] In one embodiment of the present disclosure, in order to further improve the stability of the sealing mechanism 4 when it is in the second position, it will not easily move toward the first position, causing the through hole 33 to be opened. Figure 4 and Figure 6 The outer diameter of the motor cover 32 gradually decreases from the first position to the second position, and the whole is tapered. The contact portion of the moving portion 41 and the motor cover 32 is adapted to the motor cover 32. The outer diameter of the moving portion 41 gradually decreases from the first position to the second position, and the whole is tapered.

[0069] When the cleaning roller 2 is removed from the motor assembly 3, the cleaning roller 2 pushes the sealing mechanism 4 to move from the first position to the second position. During the movement, since the outer diameters of the motor cover 32 and the moving part 41 gradually decrease, when the moving part 41 moves from the first position to the second position, an interference fit is gradually formed between the motor cover 32 and the moving part 41, so that the moving part 41 is eventually stuck in the motor cover 32, thereby improving the stability of the moving part 41 when it is in the second position and preventing the pushing part 42 from moving from the first position to the second position when subjected to a small external force, thereby opening the through hole 33, allowing external water vapor and other impurities to enter the interior of the motor assembly 3 through the through hole 33, causing damage to the motor assembly 3.

[0070] In the above embodiment, the through hole 321 is configured to have a gradually decreasing width in the direction from the first position to the second position, or the motor cover 32 and the moving portion 41 are configured to have a gradually decreasing outer diameter in the direction from the first position to the second position, so as to ensure the stability of the pushing portion 42 when it is in the second position. In another embodiment of the present disclosure, a groove 22 is provided on the inner wall of the cleaning roller 2, and when the pushing portion 42 is in the first position, the pushing portion 42 is accommodated in the groove 22. By providing the groove 22, the stability of the pushing portion 42 when it is in the first position can be ensured, so that the pushing portion 42 will not shake when the cleaning device is working, thereby closing the through hole 33 and affecting the heat dissipation of the motor assembly 3.

[0071] In one embodiment of the present invention, Figure 3 and Figure 5 As shown, the motor assembly 3 also includes a coupling 34 provided at the drive end. The motor assembly 3 is connected to the cleaning roller 2 through the coupling 34, thereby driving the cleaning roller 2 to rotate. The transmission connection method includes but is not limited to bolt fixing, bonding, plug-in fitting, snap connection, etc., which are not limited in this disclosure. To facilitate the installation and removal of the cleaning roller 2, a transmission seat 35 is provided in the cleaning roller 2 to cooperate with the coupling 34. The transmission seat 35 is located in the inner cavity 21 of the cleaning roller 2 and is fixedly connected to the cleaning roller 2. The motor assembly 3 can drive the transmission seat 35 to rotate through the coupling 34, thereby driving the cleaning roller 2 to rotate synchronously.

[0072] In a specific embodiment of the present disclosure, see Figure 5 The coupling 34 is fixedly connected to the output shaft 36 in the motor assembly 3. The coupling 34 can be a truncated cone structure or other shapes known to those skilled in the art. The coupling 34 and the output shaft 36 can be fixedly connected together by bolts or other forms known to those skilled in the art, so that the rotation of the output shaft 36 can drive the coupling 34 to rotate. Figure 2 A transmission cavity is provided in the transmission seat 35 , and the shape of the transmission cavity is adapted to the shape of the coupling 34 , and the coupling 34 and the transmission seat 35 can be fitted together in a plug-in manner.

[0073] During installation, the cleaning roller 2 can be moved toward the motor assembly 3 by hand, so that the motor assembly 3 is inserted into the inner cavity 21 of the cleaning roller 2. The cleaning roller 2 pushes the sealing mechanism to open the through hole 33, and the coupling 34 is inserted into the transmission cavity in the transmission seat 35, so that the transmission cavity and the coupling 34 are in transmission engagement. When disassembly is required, the cleaning roller 2 can be separated from the motor assembly 3 by simply pulling it away from the motor assembly 3. During the pulling process, the cleaning roller 2 pushes the sealing mechanism 4 to seal the through hole 33.

[0074] See also Figure 4 and Figure 5 The transmission cavity and the coupling 34 can also be connected together by means of protrusions, grooves, etc. to avoid the problem of slipping between the transmission cavity and the coupling 34. In one embodiment of the present disclosure, Figure 2 As shown, a spiral protrusion structure can be provided on the coupling 34. After the spiral protrusion structure cooperates with the groove structure correspondingly provided on the inner wall of the transmission cavity, the transmission cavity and the coupling 34 can be transmission-coordinated to avoid slipping between the transmission cavity and the coupling 34 during operation of the cleaning roller 2, thereby ensuring the stability of the cleaning roller 2 during rotation.

[0075] Example 2

[0076] The present disclosure also provides a drive device for use with a cleaning device. The drive device includes a heat dissipation duct 5 extending into the cleaning device's inner cavity 21. The drive device also includes a through hole 33 connecting the heat dissipation duct 5 and the cleaning device's inner cavity 21, and a sealing mechanism 4 for sealing the through hole 33.

[0077] When the driving device and the cleaning device are assembled together, the cleaning device pushes the sealing mechanism 4 to the first position during the assembly process to open the through-hole 33, facilitating heat dissipation from the driving device through the heat dissipation duct 5 and the inner cavity 21 of the cleaning device. When the cleaning device is removed from the driving device, the cleaning device pushes the sealing mechanism 4 to the second position during the disassembly process to close the through-hole 33, preventing impurities such as moisture from entering the interior of the driving device through the through-hole 33, causing damage to the driving device and reducing the service life of the driving device.

[0078] The structure, connection relationship, positional relationship of each component in the driving device and the movement process of the sealing mechanism 4 during assembly and disassembly of the cleaning device are the same as those described in the first embodiment and will not be repeated here.

[0079] Application Scenario 1

[0080] When the cleaning device needs to be replaced with cleaning components such as cleaning cotton or bristles on the cleaning roller 2 after a long period of use, the user holds the cleaning roller 2 and gradually separates the cleaning roller 2 from the motor assembly 3. During the separation process, the cleaning roller 2 pushes the pushing portion 42 on the sealing mechanism 4, causing the pushing portion 42 to move from the first position to the second position in the through hole 321, thereby driving the moving portion 41 to move, so that the through hole 411 on the moving portion 41 is completely offset from the through hole 33 on the motor cover 32. This seals the through hole 33 on the motor cover 32, preventing impurities such as moisture from entering the interior of the motor assembly 3 through the through hole 33 and causing damage to the motor assembly 3.

[0081] Application Scenario 2

[0082] After the user completes the replacement, they reinstall the cleaning roller 2 onto the motor assembly 3. During installation, the user simply holds the cleaning roller 2 and moves it toward the motor assembly 3, gradually allowing the motor assembly 3 to gradually enter the inner cavity 21 of the cleaning roller 2. During this movement, the cleaning roller 2 pushes the pushing portion 42 on the sealing mechanism 4, causing the pushing portion 42 to move from the second position to the first position within the through-hole 321. This in turn drives the moving portion 41 to move, aligning the through-hole 411 on the moving portion 41 with the through-hole 33 on the motor cover 32. This opens the through-hole 33, facilitating heat dissipation from the motor assembly 3 through the heat dissipation duct 5 and the inner cavity 21 of the cleaning roller 2.

[0083] While various embodiments of the present invention have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A cleaning device, characterized in that: include: Body (1); A cleaning device, the cleaning device being configured to rotate relative to the machine body (1) to clean the working surface; The cleaning device has an inner cavity (21); A driving device, the driving device having a heat dissipation duct (5) and being configured to extend into the inner cavity (21) of the cleaning device; the driving device being provided with a through hole (33) communicating with the heat dissipation duct (5) and the inner cavity (21), and a sealing mechanism (4) for sealing the through hole (33); When the driving device and the cleaning device are assembled together, the cleaning device is configured to push the sealing mechanism (4) to move to a first position to open the through hole (33); when the cleaning device is removed from the driving device, the cleaning device is configured to push the sealing mechanism (4) to move to a second position to close the through hole (33); The driving device is a motor assembly (3), comprising a motor housing (31) and a motor cover (32) sleeved on the outside of the motor housing (31); the through hole (33) is provided on the motor cover (32); the sealing mechanism (4) comprises a moving portion (41) provided between the motor cover (32) and the motor housing (31), and a pushing portion (42) radially extending from the moving portion (41) to the outside of the motor cover (32), the pushing portion (42) being configured to be interference-fitted with a circumferential inner wall of the cleaning device; the cleaning device is configured to push the pushing portion (42) to drive the moving portion (41) to move between a first position and a second position.

2. The cleaning device according to claim 1, characterized in that A through hole (411) is provided on the moving portion (41); the moving portion (41) is configured to move to a first position so that the through hole (411) is at least partially aligned with the through hole (33) to open the through hole (33); or to move to a second position so that the through hole (411) is completely offset from the through hole (33) to close the through hole (33).

3. The cleaning device according to claim 2, characterized in that A plurality of through holes (33) are provided, and are arranged in a circumferential direction around the motor cover (32); the moving part (41) is cylindrical, and is sleeved between the motor cover (32) and the motor housing (31); a plurality of through holes (411) are correspondingly provided, and the plurality of through holes (411) are arranged in a circumferential direction around the moving part (41).

4. The cleaning device according to claim 1, characterized in that A through hole (321) is provided on the side wall of the motor cover (32), and the pushing portion (42) is configured to extend radially outward from the moving portion (41) and pass through the through hole (321); in the direction from the first position to the second position, the through hole (321) has a size for the pushing portion (42) to be displaced.

5. The cleaning device according to claim 4, characterized in that The moving portion (41) is configured to always seal the through hole (321) during the movement.

6. The cleaning device according to claim 4, characterized in that The pushing portion (42) is configured to form a rubber encapsulation structure on the outside of the motor cover (32) so as to always seal the through hole (321) during movement.

7. The cleaning device according to claim 4, characterized in that In the direction from the first position to the second position, the size of the through hole (321) decreases; or, the through hole (321) forms a bundle opening at a position corresponding to the position between the first position and the second position.

8. The cleaning device according to claim 1, characterized in that In the direction from the first position to the second position, the outer diameter of the end of the motor cover (32) gradually decreases; the moving part (41) is constructed to have a shape that matches the end of the motor cover (32).

9. The cleaning device according to claim 2, characterized in that The pushing parts (42) are provided in plurality and arranged in a circumferential direction around the moving part (41).

10. The cleaning device according to claim 9, characterized in that A groove (22) is provided on the inner wall of the cleaning device, and the groove (22) is configured to accommodate the pushing portion (42) when the pushing portion (42) moves to the first position.

11. The cleaning device according to claim 1, characterized in that The cleaning device is a cleaning roller (2), the rotation axis of the cleaning roller (2) is parallel to the working surface; the inner cavity (21) passes through the first end and the second end of the cleaning roller (2) which are opposite to each other; the driving device extends from the first end of the cleaning roller (2) into the inner cavity (21) of the cleaning roller (2) and is transmission-connected to the cleaning roller (2); the second end of the cleaning roller (2) is rotationally connected to the machine body (1).

12. The cleaning device according to claim 11, characterized in that The external air flow is configured to enter the heat dissipation duct (5) from the connection end between the driving device and the body (1), and enter the inner cavity (21) of the cleaning roller (2) through the heat dissipation duct (5); or, the external air flow is configured to enter the inner cavity (21) from the second end of the cleaning roller (2), flow through the heat dissipation duct (5), and then flow out.

13. The cleaning device according to claim 11, characterized in that A coupling (34) is provided at the output end of the driving device, and a transmission seat (35) is provided in the inner cavity (21) of the cleaning roller (2); the coupling (34) is configured to be in pluggable transmission connection with the transmission seat (35).

14. A driving device, characterized in that: The driving device has a heat dissipation duct (5) and is configured to extend into the inner cavity (21) of the cleaning device; the driving device is provided with a through hole (33) communicating with the heat dissipation duct (5) and the inner cavity (21), and a sealing mechanism (4) for sealing the through hole (33); When the driving device and the cleaning device are assembled together, the cleaning device is configured to push the sealing mechanism (4) to move to a first position to open the through hole (33); when the cleaning device is removed from the driving device, the cleaning device is configured to push the sealing mechanism (4) to move to a second position to close the through hole (33); The driving device is a motor assembly (3), comprising a motor housing (31) and a motor cover (32) sleeved on the outside of the motor housing (31); the through hole (33) is provided on the motor cover (32); the sealing mechanism (4) comprises a moving portion (41) provided between the motor cover (32) and the motor housing (31), and a pushing portion (42) radially extending from the moving portion (41) to the outside of the motor cover (32), wherein the pushing portion (42) is configured to be interference-fitted with the circumferential inner wall of the cleaning device; and the cleaning device is configured to push the pushing portion (42) to drive the moving portion (41) to move between a first position and a second position.

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