Cleaning device

Abstract

The utility model relates to a cleaning device. According to the cleaning equipment provided by the invention, in the first state, the valve part closes the air supply channel to prevent external air from entering the shell through the air supply channel, and the filter filters dirt carried in the working airflow so as to leave the dirt in the dust collection chamber. And in the second state, the impact part falls from the first position to a second position below to impact the valve part, and the valve part is driven to open the air supply channel, so that supplied air flow enters the shell through the air supply channel, and dirt accumulated on the filter is removed. Due to the fact that impact force formed by falling of the impact piece can provide driving force, the valve piece is driven to be switched to the second state from the first state, namely, the state of closing the air supply channel is switched to the state of opening the air supply channel, and an operator can easily open the air supply channel.

Description

Technical Field

[0001] This disclosure relates to the field of cleaning technology, and in particular, to a cleaning device. Background Technology

[0002] The suction source and filter are the core components of a cleaning device, working together to achieve the cleaning function. When the cleaning device is operating, the suction source generates negative pressure to create a suction airflow. This airflow carries dust and other contaminants from the surface to be cleaned into the dust collection chamber of the cleaning device, and then flows through the filter back to the suction source. As the suction airflow passes through the filter, the contaminants carried in it are intercepted and retained in the dust collection chamber. The cleaned airflow is then discharged outside the cleaning device after passing through the suction source.

[0003] After prolonged use, cleaning equipment accumulates dirt on its filters, eventually causing blockages and reducing the equipment's efficiency and cleaning effectiveness. To address this, some cleaning devices incorporate a self-cleaning component that switches between a first and a second state. In the first state, the filter performs its filtration function. In the second state, a self-cleaning airflow reverses direction, removing accumulated dirt from the filter.

[0004] However, since the suction source creates a vacuum at least partially inside the housing, the inside of the cleaning device is under negative pressure, which makes the process of switching from the first state to the second state quite difficult. Utility Model Content

[0005] In view of this, the present disclosure provides a cleaning device designed to reduce the difficulty of switching a self-cleaning component from a first state to a second state.

[0006] The cleaning device provided in this disclosure is switchable between a first state and a second state. The cleaning device includes a housing, a suction source, a filter, and a self-cleaning assembly. The housing has an air inlet, an exhaust outlet, a make-up air inlet, and a dust collection chamber. The suction source is used to generate a vacuum, at least partially, within the housing to form a working airflow that flows in from the air inlet, through the dust collection chamber, and out from the exhaust outlet. The filter is used in the first state to filter contaminants carried in the working airflow, retaining the contaminants in the dust collection chamber. A make-up air passage is provided between the filter and the make-up air inlet. The self-cleaning assembly is used in the second state to open the make-up air passage, forming a self-cleaning airflow that flows from the make-up air inlet through the filter into the dust collection chamber, cleaning the filter. The self-cleaning assembly includes a valve and an impact member. The valve is configured to close the make-up air passage in the first state and open the make-up air passage in the second state. The impact member is configured to drive the valve to switch from the first state to the second state by impacting the valve from a first position to a lower second position.

[0007] Because the suction source creates a vacuum at least partially inside the shell, the air pressure inside the shell is lower than the air pressure outside. The air pressure on both sides of the shell acts on the shell, forming a suction force from the high-pressure area outside to the low-pressure area inside.

[0008] During the transition from the first state to the second state, the valve is hindered by suction when opening the air supply channel. According to the self-cleaning assembly provided in this disclosure, the impact force generated after the impactor falls acts on the valve, enabling the valve to overcome the suction resistance and open the air supply channel, allowing external gas to enter the housing through the air supply channel and remove the dirt accumulated on the filter.

[0009] According to the cleaning device provided in this disclosure, the valve can be driven by the impact force generated by the falling impactor to switch from a first state to a second state, that is, from a state of closed air supply channel to a state of open air supply channel. Since the impactor can provide driving force for the valve, the operator can open the air supply channel relatively easily.

[0010] In one possible implementation, the housing includes a valve seat for supporting the valve element, and an air supply port is formed in the valve seat. The valve element includes a pivot point and valve element mating portions and air supply port mating portions located at both ends of the pivot point. The pivot point is fixed to the valve seat, and the valve element mating portions and air supply port mating portions are pivotable about the pivot point. The end of the impact member near the valve element is configured as an impact member mating portion. In a first state, the air supply port mating portion closes the air supply passage; in a second state, the impact member mating portion falls and impacts the valve element mating portion, causing the air supply port mating portion to flip, thereby opening the air supply passage.

[0011] The impacting part descends and impacts the valve assembly, changing the valve's state. This causes the valve assembly at one end of the pivot point to flip downwards, while the air inlet assembly at the other end flips upwards, thus opening the air supply channel. In this way, the impact force exerted by the impacting part on the valve assembly is converted into a flipping torque, driving the air inlet assembly to flip.

[0012] In one possible implementation, the valve mating portion extends upward from the upper surface of the valve, and the impact mating portion is opposite to the valve mating portion in the vertical direction. The outer periphery of the impact mating portion gradually contracts inward as it moves downward.

[0013] According to the cleaning apparatus provided in this disclosure, the valve fitting portion is configured to extend upward from the upper surface of the valve, which enhances the structural strength of the portion of the valve located at the impact point, thereby reducing the damage to the valve caused by the impact fitting portion. Furthermore, this implementation does not require a large lower surface dimension of the impact fitting portion. Since the portion of the impact member furthest from the valve does not contact the valve fitting portion, its size can be increased to increase the weight of the impact member, enabling the impact fitting portion to generate a greater impact force upon impact.

[0014] In one possible implementation, the valve seat has a pressure relief port, which is located at opposite ends of the pivot point along with the air supply port. The cleaning device also includes a pressure relief plate configured to close the pressure relief port in a first state and open it in a second state.

[0015] In the first state, the valve closes the air supply channel and the pressure relief plate closes the pressure relief port. At this time, the working airflow only flows between the inlet and outlet, allowing the cleaning operation to proceed smoothly. In the second state, the pressure relief plate opens the pressure relief port, allowing gas from outside the housing to enter the housing, reducing the pressure difference between the inside and outside of the housing. This reduces the suction force that the valve needs to overcome to open the air supply channel, making it easier for the operator to open the air supply channel.

[0016] In one possible implementation, the valve is located above the valve seat, and the pressure relief plate is located below the valve seat. The pressure relief plate is connected to the valve via a connector so that the pressure relief plate and the valve can rotate synchronously around a pivot point.

[0017] Since the pressure relief plate is located below the valve seat, and the pressure relief port is formed on the valve seat, the pressure relief plate needs to flip downwards to open the pressure relief port. The direction of the downward flipping movement of the pressure relief plate is the same as the direction of the suction force acting on the housing, so this process is not hindered by the suction force. Furthermore, since the pressure relief plate is connected to the valve, when the valve is impacted and flips, the pressure relief plate also flips, allowing the air supply port and the pressure relief port to open simultaneously. The gas entering the housing through the pressure relief port increases the internal air pressure, reducing the suction force that the valve needs to overcome to open the air supply channel. Therefore, this implementation effectively reduces the number of components and simplifies the process of opening the air supply channel by operating the valve.

[0018] In one possible implementation, the cleaning device further includes a guide with a guide groove, through which the impactor is slidably connected. The impactor and / or the guide can be driven to slide relative to the guide to a first position.

[0019] After being driven, the impactor slides to a first position, and then, under the influence of gravity, falls from the first position to a second position to impact the valve. After the impact, the impactor can be driven again, sliding back to the first position for another impact. According to the cleaning device provided in this disclosure, the impactor can reciprocate between the first and second positions, achieving multiple impacts on the valve.

[0020] In one possible implementation, the self-cleaning component further includes a retainer with a release groove and a locking groove. The locking groove is connected to the release groove and located on one side of the release groove in its width direction, which is perpendicular to the vertical direction. The impact member has a protrusion. A guide groove has a first edge that moves downward toward the locking groove in the width direction of the release groove. In the initial position, the protrusion is located in the space formed by the release groove and the first edge. As the guide member is driven downward, the protrusion is pressed by the first edge, causing the impact member to move from the initial position to the locked position, whereby the protrusion is locked in the locking groove.

[0021] According to the self-cleaning assembly of the cleaning device provided in this disclosure, before the impact member falls, the guide member is driven to move downward, causing the first edge to press against the protrusion and guide the impact member to the locking position. The guide member is then driven to continue moving downward until the guide protrusion moves from the locking groove to the release groove. At this point, the impact member is no longer obstructed by the first edge in its falling direction, allowing it to fall freely and achieve a large acceleration. In other words, the cooperation between the guide member and the fixing member can temporarily lock the impact member at a certain height, and release the impact member when the first edge no longer obstructs its fall in the release groove, thus generating a large impact force to ensure that the valve member can be flipped downward after the impact force acts on it.

[0022] In one possible implementation, the guide groove also has a second edge located above the first edge, which moves downward toward the locking groove in the width direction of the release groove. As the guide is driven downward, the protrusion is pressed by the second edge, causing the impact member to move from the locked position to a first position where the protrusion is located in the guide groove.

[0023] In this way, as the guide is driven to move downward, the second edge can guide the protrusion from the locking groove to the release groove, allowing the impact member to fall freely.

[0024] In one possible implementation, the guide groove includes a vertical groove and a spiral groove. The spiral groove spirals upward around the outer periphery of the guide member, and both the upper and lower ends of the spiral groove are connected to the vertical groove. The impact member has a protrusion. The spiral groove is used to guide the protrusion to climb upward so that the impact member reaches a first position. The vertical groove is used to guide the impact member to move from the first position to a second position.

[0025] When the impactor is driven to rotate, it is guided upward by the spiral groove, allowing it to gain significant gravitational potential energy in the first position. Subsequently, guided by the vertical groove, the impactor falls freely, converting its gravitational potential energy into kinetic energy. This allows it to reach a greater velocity in the second position, thereby generating a significant impact force on the valve and driving it to flip.

[0026] In one possible implementation, when the impactor is in the initial position, the protrusion is located in the middle of the vertical groove and connected to the lower end of the spiral groove; when the impactor is in the first position, the protrusion is located at the top of the vertical groove and connected to the upper end of the spiral groove; and when the impactor is in the second position, the protrusion is located at the bottom end of the vertical groove.

[0027] When the impactor is driven to rotate, it can climb upwards from the lower end of the spiral groove, reaching the upper end of the spiral groove and connecting with the top of the vertical groove. Then, guided by the vertical groove, it falls freely to the bottom of the vertical groove. After impact, the impactor can return to its initial position, be guided again by the spiral groove to the first position, and then fall to the second position to complete the next impact. According to the cleaning device provided in this disclosure, the impactor can reciprocate between the first and second positions, achieving multiple impacts on the valve. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below.

[0029] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0030] It should also be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0031] It should also be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0032] Figure 1 This is a schematic diagram of the structure of a cleaning device provided in one embodiment of the present disclosure.

[0033] Figure 2 yes Figure 1 A cross-sectional view of the cleaning equipment.

[0034] Figure 3 yes Figure 1 A cross-sectional view of the cleaning equipment in another direction.

[0035] Figure 4A and Figure 4B yes Figure 3 A schematic diagram of the structure of the self-cleaning component of the cleaning equipment.

[0036] Figure 5 yes Figure 3 A schematic diagram of the structure of the self-cleaning component of the cleaning equipment.

[0037] Figure 6 yes Figure 3 A schematic diagram of the self-cleaning component of the cleaning equipment from another perspective.

[0038] Figure 7 yes Figure 3 A schematic diagram of the valve components.

[0039] Figure 8A and Figure 8B yes Figure 3 A partial structural diagram of the self-cleaning component of the cleaning equipment.

[0040] Figure 9 yes Figure 3 A partial structural diagram of the self-cleaning component of the cleaning equipment.

[0041] Figures 10A to 10D yes Figure 3 A schematic diagram of the structure of the self-cleaning component of the cleaning equipment.

[0042] Figure 11A and Figure 11B This is a cross-sectional view of the self-cleaning component of the cleaning device provided in a variation of this disclosure.

[0043] Figure 12 yes Figure 11A An exploded view of a portion of the self-cleaning component.

[0044] Figures 13A to 13D yes Figure 11A A schematic diagram of a portion of the self-cleaning component. Detailed Implementation

[0045] The embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that there are many ways to implement this disclosure, and it should not be construed as being limited to the embodiments set forth herein. The embodiments set forth herein are only for a more thorough and clear understanding of this disclosure.

[0046] This disclosure provides a cleaning device 100. For ease of understanding, the overall structure of the cleaning device 100 will be illustrated below. It should be understood that the structure of the cleaning device 100 is not limited to the following description. For example, one or more elements introduced below may be omitted or replaced, and their layout relationships may be changed.

[0047] refer to Figure 1The cleaning device 100 may include a body 200, a tube 300, and a suction head 400. The proximal end of the tube 300 is connected to the body 200, and the distal end of the tube 300 is connected to the suction head 400. Using the tube 300 and the suction head 400, the operator can apply the suction airflow generated within the body 200 to locations farther away or to hard-to-reach corners.

[0048] refer to Figure 1 and Figure 2 The body 200 may include a head 201 and a dust bin 202. The head 201 is mounted on the dust bin 202 and covers the top of the dust bin 202 to form a generally closed dust collection chamber 203 with the dust bin 202. The housing of the head 201 and the housing of the dust bin 202 may be collectively referred to as the housing of the cleaning equipment 100.

[0049] The housing 10 of the cleaning equipment 100 is provided with an air inlet 11, an exhaust outlet 12, and a replenishment air outlet 13. The air inlet 11 can be located on the dust bin 202 and communicate with the dust collection chamber 203. The end of the pipe 300 can be connected to the air inlet 11. The exhaust outlet 12 and the replenishment air outlet 13 can be located on the machine head 201.

[0050] refer to Figure 2 The cleaning device 100 provided in this disclosure includes a suction source 20, a filter 30, and a self-cleaning assembly 40. The suction source 20 is used to generate a vacuum, at least partially, within the housing 10, to form a working airflow that draws in air from the air inlet 11, flows through the dust collection chamber 203, and exits from the exhaust port 12. The flow path of the working airflow is... Figure 2 The arrow indicates the location. Filter 30 is used to filter contaminants carried in the working airflow in the first state, so as to retain the contaminants in the dust collection chamber 203. An air supply channel is provided between filter 30 and air supply port 13. Figure 3 The self-cleaning component 40 is used to open the air supply channel in the second state to form a self-cleaning airflow from the air supply port 13 through the filter into the dust collection chamber 203. Since the direction of the self-cleaning airflow entering the dust collection chamber 203 through the filter 30 is opposite to the direction of the working airflow through the filter 30, it can clean the dirt accumulated on the filter 30.

[0051] Since the suction source 20 generates a vacuum at least partially within the housing 10, the air pressure inside the housing 10 is lower than the external air pressure when the suction source 20 is operating. This causes the air pressure on both sides of the housing 10 to act on the housing 10, forming a suction force from the external high-pressure area to the internal low-pressure area. Since the valve 41 is located on the housing 10, the state of the valve 41 is affected by the suction force.

[0052] Specifically, refer to Figure 4AIn the first state, the direction of the suction force is the same as the direction in which valve 41 closes the air supply channel. This helps valve 41 close the air supply channel, preventing external gas from entering through it. At this time, filter 30 can perform its filtering function smoothly. (Reference) Figure 4B In the second state, the direction of the suction force is opposite to the direction in which the valve 41 opens the air supply channel, which causes the valve 41 to be hindered by the suction force when opening the air supply channel.

[0053] To overcome the resistance encountered when opening the air supply channel, refer to Figure 3 The self-cleaning assembly 40 includes a valve 41 and an impact member 42. Combined Figure 4A and Figure 4B Valve 41 is configured to close the air supply port 13 (i.e., close the air supply channel) in a first state and open the air supply port 13 (i.e., open the air supply channel) in a second state. Impact member 42 is configured to drive valve 41 from the first state to the second state by impacting valve 41 from the first position to the lower second position. In other words, the impact force generated by impact member 42 after its fall acts on valve 41, enabling valve 41 to overcome the resistance of suction force, thereby opening the air supply channel and allowing external gas to enter the housing 10 through the air supply channel to remove accumulated dirt from filter 30.

[0054] According to the cleaning device 100 provided in this disclosure, the valve 41 can be driven by the impact force generated by the falling impact member 42 to switch from a first state to a second state, that is, from a state of closed air supply channel to a state of open air supply channel. Since the impact member 42 can provide driving force for the valve 41, the operator can open the air supply channel relatively easily.

[0055] refer to Figures 5 to 7 The housing 10 may include a valve seat 14 for supporting the valve member 41, and an air inlet 13 is formed in the valve seat 14. The valve member 41 includes a pivot point 411 and air inlet mating portions 412 and valve member mating portions 413 located at both ends of the pivot point 411. The pivot point 411 is fixed to the valve seat 14, and the air inlet mating portions 412 and valve member mating portions 413 are capable of pivoting around the pivot point 411.

[0056] Combination Figure 4A and Figure 4B The end of the impact member 42 near the valve member 41 is configured as an impact member mating part 421. In the first state, the air supply port mating part 412 closes the air supply channel. In the second state, the impact member mating part 421 falls and impacts the valve member mating part 413, causing the air supply port mating part 412 to flip over, thereby opening the air supply channel.

[0057] In other words, the impacting part 421 falls and impacts the valve part 413 of the valve part 41, changing the state of the valve part 41. This causes the valve part 413 at one end of the pivot point 411 to flip downwards, and the air inlet part 412 at the other end of the pivot point 411 to flip upwards, thereby opening the air inlet channel. According to the self-cleaning assembly 40 provided in this disclosure, the impact force of the impacting part 421 acting on the valve part 413 can be converted into a flipping torque, thereby driving the air inlet part 412 to flip.

[0058] Further, refer to Figure 7 The distance from the valve fitting part 413 to the pivot point 411 can be greater than the distance from the air inlet fitting part 412 to the pivot point 411. In this way, the impact force of the impact fitting part 421 acting on the valve fitting part 413 can generate a larger torque. At the same time, since the distance from the air inlet fitting part 412 to the pivot point 411 is smaller, this torque can generate a larger force on the air inlet fitting part 412 when it is driven to rotate, so as to overcome the resistance of the suction force.

[0059] refer to Figure 4A and Figure 7 The valve fitting portion 413 extends upward from the upper surface of the valve member 41, and the impact fitting portion 421 is opposite to the valve fitting portion 413 in the vertical direction. According to the cleaning device 100 provided in this disclosure, by configuring the valve fitting portion 413 to extend upward from the upper surface of the valve member 41, the structural strength of the portion of the valve member 41 located at the impact position can be enhanced, thereby reducing the damage to the valve member 41 caused by the impact fitting portion 421.

[0060] Furthermore, the outer periphery of the impact member mating portion 421 can gradually shrink inward as it descends. This implementation does not require the lower surface of the impact member mating portion 421 to have a large dimension. For the portion of the impact member mating portion 421 that is far from the valve member 41, this portion does not contact the valve member mating portion 413. Therefore, the weight of the impact member mating portion 421 can be increased by increasing the size of this portion, so that the impact member mating portion 421 can generate a greater impact force after falling.

[0061] It is understood that there are various ways to achieve the inward contraction of the outer periphery of the impact member mating portion 421 as it moves downward, and this disclosure does not impose any particular limitation on this. As an example, the outer periphery of the impact member mating portion 421 can gradually contract inward as it moves downward. Of course, in some other embodiments, the outer periphery of the impact member mating portion 421 can also maintain the same outward radial extension downward after contracting inward.

[0062] refer to Figure 5 and Figure 6The valve seat 14 may also be provided with a pressure relief port 15. The pressure relief port 15 and the air supply port 13 are located at opposite ends of the pivot point 411. The cleaning device 100 also includes a pressure relief plate 43, which is configured to close the pressure relief port 15 in a first state and open the pressure relief port 15 in a second state.

[0063] refer to Figure 4A In the first state, valve 41 closes the air supply channel and pressure relief plate 43 closes pressure relief port 15. At this time, the working airflow only flows between air inlet 11 and exhaust port 12, allowing the cleaning operation to proceed smoothly. (Reference) Figure 4B In the second state, the pressure relief plate 43 opens the pressure relief port 15, and the gas outside the housing 10 can enter the housing 10 through the pressure relief port 15, reducing the pressure difference between the inside and outside of the housing 10. As a result, the suction force that the valve 41 needs to overcome when opening the air supply channel is reduced, and the operator can open the air supply channel more easily.

[0064] refer to Figures 5 to 7 The valve 41 is located above the valve seat 14, and the pressure relief plate 43 is located below the valve seat 14. The pressure relief plate 43 is connected to the valve 41 via a connector 431, allowing the pressure relief plate 43 and the valve 41 to rotate synchronously around the pivot point 411. Since the pressure relief plate 43 is below the valve seat 14, and the pressure relief port 15 is formed on the valve seat 14, the pressure relief plate 43 needs to rotate downwards when the pressure relief port 15 is opened. The direction of movement of the pressure relief plate 43 when rotating downwards is the same as the direction of the suction force acting on the housing 10, so this process is not hindered by the suction force. Furthermore, since the pressure relief plate 43 is connected to the valve 41, when the valve 41 is impacted and rotates, the pressure relief plate 43 also rotates accordingly, allowing the air supply port 13 and the pressure relief port 15 to open simultaneously. The gas entering the housing 10 through the pressure relief port 15 can increase the air pressure inside the housing 10, reducing the suction force that the valve 41 needs to overcome to open the air supply channel. Therefore, this implementation method can effectively reduce the number of components and reduce the difficulty of opening the air supply channel by operating valve 41. As one possible implementation method, valve 41, connector 431 and pressure relief plate 43 can be integrated into a single structure. Among them, pressure relief plate 43 can use a rubber plug to ensure airtightness when pressure relief port 15 is closed.

[0065] refer to Figure 2 A filtration channel is provided between the filter 30 and the suction source 20. In the first state, the filter 30 can filter out dirt carried in the working airflow, so the working airflow will not contaminate the suction source 20 after entering the filtration channel through the filter 30. In the second state, after the gas outside the housing 10 enters the air supply channel through the air supply port 13, some of it may enter the filtration channel. As a result, the airflow flowing backward through the filter 30 will be reduced, thereby weakening the self-cleaning effect.

[0066] To resolve the aforementioned issue, the cleaning device 100 needs to shut down the filter channel in the second state. (Reference) Figure 6 and Figure 7 The self-cleaning component 40 may include a baffle 50, which is located between the filter 30 and the suction source 20. The valve 41 is provided with a transmission part 46, and the baffle 50 is linked with the transmission part 46. In the first state, the filter channel is opened, and in the second state, the filter channel is closed. The gas supplied through the air inlet 13 can be used to impact the filter 30, resulting in a better self-cleaning effect.

[0067] As one possible implementation, refer to Figure 8A and Figure 8B The baffle 50 includes a baffle base 51, which extends to form a connecting portion 52 on the side near the filter 30. A baffle through hole 53 is provided on the baffle base 51. One end of the transmission portion 46 has a connecting hole 461 for receiving the connecting portion 52. The other end of the transmission portion 46 is connected to the air supply port mating portion 412. The self-cleaning assembly 40 also includes a partition 16, located on the side of the baffle base 51 opposite to the filter 30, and has a partition through hole 161. As one possible implementation, the partition 16 is fixedly installed on the valve seat 14, and the two can be integrated into a single structure.

[0068] refer to Figure 8A In the first state, the baffle through-hole 53 is at least partially aligned with the partition through-hole 161, allowing the working airflow to pass sequentially through the baffle 50 and the partition 16 after entering the filter channel. (Reference) Figure 8B In the second state, the transmission part 46 moves upward around the pivot point 411, driving the connecting part 52 to move towards the side closer to the transmission part 46. After the connecting part 52 moves, the positional relationship between the baffle 50 and the partition 16 changes, causing the base of the baffle 51 to block the through hole 161 of the partition.

[0069] refer to Figure 9 The cleaning device 100 may further include a guide 44, which has a guide groove 441, through which the impact member 42 is slidably connected to the guide 44. The guide 44 can be driven so that the impact member 42 can slide relative to the guide 44 to a first position.

[0070] After being driven, the impact member 42 slides to the first position, and then, under the influence of gravity, it falls from the first position to the second position to impact the valve member 41. After the impact, the impact member 42 can be driven again to slide to the first position for the next impact. According to the self-cleaning assembly 40 provided in this disclosure, the impact member 42 can reciprocate between the first and second positions to achieve multiple impacts on the valve member 41.

[0071] It is understood that there are various ways to drive the guide component, and this disclosure does not impose any particular restrictions on it. For example, it can be driven by a power source such as a motor or solenoid valve, or it can be driven by manual pressing.

[0072] Continue to refer to Figure 9 The self-cleaning assembly 40 may further include a retainer 45, which has a release groove 451 and a locking groove 452. The locking groove 452 is connected to the release groove 451 and located on one side of the release groove 451 in the width direction. The impact member 42 has a protrusion 422. The guide groove 441 has a first edge 4411, which moves downward toward the locking groove 452 in the width direction of the release groove 451.

[0073] Combination Figure 10A When the impact member 42 is in its initial position, the protrusion 422 is located in the space formed by the release groove 451 and the first edge 4411; combined Figure 10B As the guide 44 is driven to move downward, the protrusion 422 is pressed by the first edge 4411, causing the impact member 42 to move from the initial position to the locked position, and the protrusion 422 is locked in the locking groove 452.

[0074] According to the self-cleaning assembly 40 of the cleaning device 100 provided in this disclosure, before the impact member 42 falls, the guide member 44 is driven to move downward, causing the first edge 4411 to press against the protrusion 422, guiding the impact member 42 to move to the locking position. Subsequently, the guide member 44 is driven to continue moving downward until the guide protrusion 422 moves from the locking groove 452 to the release groove 451, at which point the impact member 42 is no longer obstructed by the first edge 4411 in its falling direction (see reference). Figure 10C and Figure 10D At this point, the impact member 42 can fall freely and obtain a large acceleration. That is to say, the cooperation of the guide member 44 and the fixing member 45 can temporarily lock the impact member 42 at a certain height, and release the impact member 42 when the first edge 4411 no longer obstructs the fall of the impact member 42 in the release groove 451, so that it generates a large impact force to ensure that the impact force can cause the valve member 41 to flip downward after acting on the valve member 41.

[0075] It should be noted that in the accompanying drawings of this disclosure, arrows Z+ and Z- can be used to indicate the upper and lower sides in the up-down direction, respectively; arrows X+ and X- can be used to indicate the opposite sides in the width direction of the release groove 451, and the width direction of the release groove 451 is perpendicular to the up-down direction.

[0076] Continue to refer to Figure 9The guide groove 441 also has a second edge 4412 located above the first edge 4411, which, in the width direction of the release groove 451, approaches the locking groove 452 downwards. (Reference) Figure 10C As the guide 44 is driven to move downward, the protrusion 422 is pressed by the second edge 4412, causing the impact member mating part 421 to move from the locked position to the first position where the protrusion 422 is located in the guide groove 441.

[0077] In this way, as the guide 44 moves downward, the second edge 4412 can guide the protrusion 422 from the locking groove 452 to the release groove 451, allowing the impact member mating part 421 to fall freely.

[0078] Continue to refer to Figure 9 The guide groove 441 may further include a transition edge 4413 extending in the vertical direction, the transition edge 4413 connecting the first edge 4411 and the second edge 4412. When located between the first edge 4411 and the transition edge 4413, the protrusion 422 is guided from the release groove 451 to the locking groove 452; when located between the second edge 4412 and the transition edge 4413, the protrusion 422 is guided from the locking groove 452 to the release groove 451.

[0079] Continue to refer to Figure 9 The self-cleaning assembly 40 also includes an energy-storing elastic element 47. When the impact member 42 is in the first position, the energy-storing elastic element 47 elastically deforms to apply a biasing force toward the second position to the impact member 42. According to the self-cleaning assembly 40 provided in this disclosure, when the impact member 42 is in the first position, it can acquire gravitational potential energy and elastic potential energy. In this way, after the impact member 42 falls from the first position to the second position and impacts the valve member 41, the potential energy is converted into kinetic energy, thereby generating a large impact force on the valve member 41 and driving it to overturn.

[0080] It is understood that the self-cleaning assembly 40 may also include multiple reset elements (not shown in the figure). For example, the self-cleaning assembly 40 may also include valve reset elements and guide reset elements.

[0081] As an example, the valve reset member can be a spring. The valve reset member can be installed on the side of the valve mating portion 413 away from the impact member mating portion 421, so that when the impact member mating portion 421 impacts the valve mating portion 413, the valve reset member deforms to apply an upward biasing force to the valve mating portion 413, and the biasing force can drive the valve mating portion 413 to flip upward and return to its position in the first state.

[0082] As an example, the guide reset member can be a spring. After the impact of the impactor 42 ends, the guide reset member deforms to apply an upward biasing force to the guide 44, which can drive the guide 44 back to its initial position.

[0083] It should be understood that there are various ways to implement the cleaning equipment disclosed herein, and it should not be construed as being limited to the embodiments described above. The following, in conjunction with... Figure 11A and Figure 11B , Figure 12 as well as Figures 13A to 13D The following are illustrative examples of variations of this disclosure. It should be noted that the foregoing embodiments and the following variations share some common elements. In the following variations, these elements will use the same reference numerals as in the foregoing embodiments to omit repeated descriptions.

[0084] refer to Figure 11A and Figure 11B The self-cleaning component 40a of the cleaning device 100a includes a guide 44a and a drive device 48. The drive device 48 is used to drive the impact member 42a to rotate relative to the guide 44a so that the impact member 42a can slide relative to the guide 44a to a first position.

[0085] It is understood that in some other embodiments, the drive device 48 can also be used to drive the guide 44a to rotate relative to the impact member 42a. Of course, the drive device 48 can also be implemented in other forms; for example, the drive device 48 can be used to drive the impact member 42a to move linearly.

[0086] refer to Figure 12 The guide member 44a may be provided with a guide groove 441a, which may include a vertical groove 4414 and a spiral groove 4415. The spiral groove 4415 spirals upward around the outer periphery of the guide member 44, and the upper and lower ends of the spiral groove 4415 are connected to the vertical groove 4414.

[0087] The following is combined Figure 13A As for Figure 13D This section describes the process by which the guide groove 441a guides the impact component 42a.

[0088] refer to Figures 13A to 13C When the impact member 42a is driven to rotate, it can be guided upward by the helical groove 4415 until it reaches the first position. (Reference) Figure 13C and Figure 13D The impact member 42a, guided by the vertical groove 4414, can fall freely from the first position to the second position.

[0089] According to the self-cleaning assembly 40a provided in this disclosure, the impact member 42a is first guided to climb upward to a first position, gaining a large gravitational potential energy, and then guided to fall from the first position to a lower second position, converting the gravitational potential energy into kinetic energy. In this way, when the impact member 42a reaches the second position, it can obtain a large velocity, thereby generating a large impact force on the valve member 41 and driving it to flip.

[0090] refer to Figure 13A When the impact member 42a is in its initial position, the protrusion 422 is located in the middle of the vertical groove 4414 and is connected to the lower end of the spiral groove 4415. (Reference) Figure 13C When the impact member 42a is in the first position, the protrusion 422 is located at the top of the vertical groove 4414 and connects with the upper end of the spiral groove 4415. (Reference) Figure 13D When the impact member 42a is in the second position, the protrusion 422 is located at the bottom end of the vertical groove 4414.

[0091] In this way, when the impact member 42a is driven to rotate, it can climb upwards from the lower end of the spiral groove 4415, reach the upper end of the spiral groove 4415 and connect with the top of the vertical groove 4414, and then fall freely under the guidance of the vertical groove 4414 to the bottom end of the vertical groove 4414. After impact, the impact member 42a returns to its initial position, is guided again by the spiral groove 4415 to the first position, and then falls to the second position to complete the next impact. According to the self-cleaning assembly 40a provided in this disclosure, the impact member 42 can reciprocate between the first and second positions, achieving multiple impacts on the valve member 41.

[0092] It is understood that there are multiple ways to drive the impact member 42a from the second position back to the initial position, and this disclosure does not impose any particular limitation on this. For example, the self-cleaning assembly 40a may also include an impact member reset member, which may be a spring. When the impact member 42a is in the second position, the impact member reset member deforms to apply an upward biasing force to the impact member 42a, and the biasing force can drive the impact member 42a back to the initial position.

[0093] Continue to refer to Figures 11A to 11B and Figure 12 The drive device 48 includes a drive component 481 and a transmission component 482, with the transmission component 482 connecting the drive component 481 and the impact component 42a.

[0094] There are many ways to connect the drive component 481 and the impact component 42a. As an example, refer to... Figure 12The transmission component 482 includes an upwardly protruding mounting end 4821 and a downwardly extending cross-shaped rib 4822. The mounting end 4821 has a downwardly recessed irregular groove 4823, and the mounting end 4821 is connected to the driving component 481 through the irregular groove 4823. The impact component 42a has a downwardly recessed cross groove 423, which mates with the cross-shaped rib 4822 to connect the transmission component 482 and the impact component 42a. One end of the transmission component 482 is connected to the driving component 481 through the irregular groove 4823, and the other end is connected to the impact component 42a through the mate of the cross-shaped rib 4822 and the cross groove 423. This enhances the connection strength between the driving component 481 and the impact component 42a, ensuring the anti-rotation connection between the driving component 481 and the transmission component 482, as well as the anti-rotation connection between the transmission component 482 and the impact component 42a.

[0095] It is understandable that the shape of the irregular groove 4823 can be realized in many ways. For example, the irregular groove 4823 can be one of the following: arc-shaped groove, straight groove, hexagonal groove, square groove, etc., as long as its shape is not circular.

[0096] It is understood that the driver 481 can be implemented in various ways, and this disclosure does not impose any particular restrictions on it. For example, the driver 481 can be a stepper motor, a servo motor, etc.

[0097] It should be understood that the term "comprising" and its variations as used in this disclosure are open-ended, meaning "including but not limited to". The term "according to" means "at least in part according to". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least another embodiment".

[0098] It should be understood that although terms such as “first” or “second” may be used in this disclosure to describe various elements (such as a first edge and a second edge), these elements are not defined by these terms, which are only used to distinguish one element from another.

[0099] The scope of protection of this disclosure is not limited to the above embodiments. Any variations or substitutions that can be conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A cleaning device, switchable between a first state and a second state, comprising: The casing is equipped with an air inlet, an exhaust outlet, a make-up air inlet, and a dust collection chamber; A suction source is used to generate a vacuum, at least partially, within the housing, to form a working airflow that flows in from the air inlet, through the dust collection chamber, and out from the exhaust port; A filter, used in a first state to filter contaminants carried in the working airflow, so as to retain the contaminants in the dust collection chamber, wherein an air supply channel is provided between the filter and the air supply port; and The self-cleaning component is used to open the air supply channel in the second state to form a self-cleaning airflow from the air supply port through the filter into the dust collection chamber to clean the filter; Its features are: The self-cleaning component includes: The valve is configured to close the air supply passage in a first state and open the air supply passage in a second state; and An impact element is configured to drive the valve to switch from the first state to the second state by impacting the valve from a first position to a second position below it.

2. The cleaning equipment according to claim 1, characterized in that, The housing includes a valve seat for supporting the valve, and the air inlet is formed in the valve seat; The valve includes a pivot point and valve fitting parts and air inlet fitting parts located at both ends of the pivot point. The pivot point is fixed to the valve seat, and the valve fitting parts and the air inlet fitting parts can pivot around the pivot point. The end of the impact member near the valve member is configured as an impact member mating part. In the first state, the air supply port mating part closes the air supply channel. In the second state, the impact member mating part falls and impacts the valve member mating part, causing the air supply port mating part to flip over, thereby opening the air supply channel.

3. The cleaning equipment according to claim 2, characterized in that, The valve fitting portion extends upward from the upper surface of the valve; The impact component mating part and the valve component mating part are opposite each other in the vertical direction, and the outer periphery of the impact component mating part contracts inward as it moves downward.

4. The cleaning equipment according to claim 2, characterized in that, The valve seat is provided with a pressure relief port, and the pressure relief port and the air supply port are located at opposite ends of the pivot point; The cleaning device also includes a pressure relief plate configured to close the pressure relief port in a first state and open the pressure relief port in a second state.

5. The cleaning equipment according to claim 4, characterized in that, The valve is located above the valve seat, and the pressure relief plate is located below the valve seat; The pressure relief plate is connected to the valve via a connector, so that the pressure relief plate and the valve can rotate synchronously around the pivot point.

6. The cleaning equipment according to any one of claims 1 to 5, characterized in that, The cleaning equipment also includes a guide member, which has a guide groove, and the impact member is slidably connected to the guide member through the guide groove; The impact member and / or the guide member can be driven to slide relative to the guide member to the first position.

7. The cleaning equipment according to claim 6, characterized in that, The self-cleaning component also includes a fixing member, which has a release groove and a locking groove. The locking groove is connected to the release groove and located on one side of the width direction of the release groove. The width direction of the release groove is perpendicular to the vertical direction. The impact member has a protrusion, and the guide groove has a first edge. In the width direction of the release groove, the first edge moves downward toward the locking groove. When the impact member is in the initial position, the protrusion is located in the space formed by the release groove and the first edge. As the guide is driven downward, the protrusion is pressed by the first edge, causing the impact member to move from the initial position to the locking position, whereby the protrusion is locked in the locking groove.

8. The cleaning equipment according to claim 7, characterized in that, The guide groove also has a second edge located above the first edge, and in the width direction of the release groove, the second edge moves downward toward the locking groove; As the guide is driven downward, the protrusion is pressed by the second edge, causing the impact member to move from the locked position to the first position where the protrusion is located in the guide groove.

9. The cleaning equipment according to claim 6, characterized in that, The guide groove includes a vertical groove and a spiral groove. The spiral groove spirals upward around the outer periphery of the guide member, and the upper and lower ends of the spiral groove are connected to the vertical groove. The impact member has a protrusion. The spiral groove is used to guide the protrusion to climb upward so that the impact member reaches the first position. The vertical groove is used to guide the impact member to move from the first position to the second position.

10. The cleaning equipment according to claim 9, characterized in that, When the impact member is in the initial position, the protrusion is located in the middle of the vertical groove and is connected to the lower end of the spiral groove. When the impact member is in the first position, the protrusion is located at the top of the vertical groove and is connected to the upper end of the spiral groove. When the impact member is in the second position, the protrusion is located at the bottom end of the vertical groove.

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