The present disclosure relates to the field of cleaning tool technologies, and in particular to a cleaning device.
Current cleaning devices, such as floor scrubbers, are capable of cleaning a floor by spraying water onto the floor, and also drawing waste water into a waste water tank for storage to thereby complete the cleaning process.
A series of concepts in a simplified form are introduced in this section, and will be described in further detail in the detailed description section. This section of the present disclosure is not indented to define key features and necessary technical features of the technical solution as claimed, much less to attempt to determine the protection scope of the technical solution as claimed.
An embodiment of the present disclosure provides a cleaning device. The cleaning device includes a device body and a fluid discharging assembly, wherein the device body includes a first chamber, a second chamber, a fluid delivery pipeline, and a control mechanism; the first chamber is configured to accommodate a medium to be treated, the second chamber is configured to accommodate a cleaning fluid, the fluid delivery pipeline is disposed outside the first chamber and the second chamber, and the control mechanism is configured to control the fluid delivery pipeline to be connected to the first chamber or the second chamber; and the fluid discharging assembly includes a first filter assembly and a fluid discharging pipe, wherein the first filter assembly is provided within the first chamber and disposed above a chamber bottom of the first chamber, one end of the fluid discharging pipe is communicated with the first filter assembly, and the other end of the fluid discharging pipe is communicated with the fluid delivery pipeline.
Optionally, the cleaning device further includes: a second filter assembly provided outside the first chamber and communicated with the fluid discharging pipe.
Optionally, the first filter assembly has a greater filter fineness than the second filter assembly.
Optionally, the first chamber is provided with a connection pipe that passes through the first chamber; and the fluid discharging pipe includes a first pipeline and a second pipeline, wherein the first pipeline is disposed within the first chamber and configured to communicate the first filter assembly and the connection pipe, and the second pipeline is disposed outside the first chamber and configured to communicate the connection pipe and the fluid delivery pipeline.
Optionally, the first pipeline is detachably connected to the connection pipe; and/or the first pipeline is detachably connected to the first filter assembly; and/or the second pipeline is detachably connected to the connection pipe; and/or the second pipeline is detachably connected to the second filter assembly.
Optionally, the first chamber and the second chamber are of a one-piece structure or a split structure.
Optionally, the first filter assembly is detachably connected to the first chamber.
Optionally, the first filter assembly includes a filter body and a mounting rack, wherein the filter body is provided with a filtering hole, a fluid discharging port, and a filtering channel configured to communicate the filtering hole and the fluid discharging port, and the fluid discharging port is communicated with the fluid discharging pipe; and the mounting rack is configured to connect the filter body to the first chamber and disposed above the chamber bottom of the first chamber.
Optionally, the filter body includes: a first plate and a second plate that are disposed opposite to each other, and a filtering mesh disposed between the first plate and the second plate and enclosed to form the filtering channel, wherein the filtering mesh is provided with a plurality of filtering holes, and the fluid discharging port is formed in the second plate.
Optionally, the mounting rack is connected to the second plate; and the first plate is provided with a limiting portion matching the first chamber.
The following accompanying drawings of the present disclosure are taken herein as a part of the embodiments of the present disclosure for the purpose of understanding technical solutions involved in the present disclosure. The accompanying drawings illustrate embodiments of the present disclosure and descriptions thereof for explaining the principles of the technical solutions involved in the present disclosure.
In the accompanying drawings:
In the following description, a large number of specific details are given to provide a more thorough understanding of technical solutions of the present disclosure. However, it may be apparent to those skilled in the art that technical solutions provided by the present disclosure can be implemented without one or more of these details.
It shall be noted that the terms used herein are merely intended to describe specific embodiments and are not intended to limit exemplary embodiments according to the present disclosure. As used herein, the singular form is also intended to include the plural form, unless the context clearly indicates otherwise. It shall also be understood that the terms “comprising” and/or “including” as used in this specification may indicate the presence of the features, integers, steps, operations, components and/or assemblies, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, assemblies and/or combinations thereof.
Exemplary embodiments of the present disclosure will be described herein in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and shall not be construed as being limited to the embodiments set forth herein. It shall be understood that these embodiments are provided to make the technical solutions involved in the present disclosure complete and to fully communicate the ideas of these exemplary embodiments to those of ordinary skill in the art.
An optional embodiment of the present disclosure provides a cleaning device. As shown in
The fluid delivery pipeline is configured to deliver the fluid flowing out of the first chamber 111 and/or the second chamber 114. That is, the cleaning fluid within the first chamber 111 may be delivered separately to the surface to be cleaned via the fluid delivery pipeline; or the cleaning fluid within the second chamber 114 may be separately delivered to the surface to be cleaned via the fluid delivery pipeline; or the cleaning fluid within the first chamber 111 and the cleaning fluid within the second chamber 114 may be simultaneously delivered to the surface to be cleaned via the fluid delivery pipeline, such that the needs under different cleaning capacities, different cleaning degrees and different water discharge amounts can be satisfied, thereby enlarging an application scope of the product.
Specifically, the cleaning device further includes a cleaning portion which may, for example, be a disk brush or other structure that meets requirements. One end of the fluid delivery pipeline away from the first chamber 111 and the second chamber 114 is communicated with the disk brush. As a result, in a case where the control mechanism connects the fluid delivery pipeline to the first chamber 111, the medium to be treated within the first chamber 111 is delivered to the surface to be cleaned via the fluid delivery pipeline and the disk brush; and in a case where the control mechanism connects the fluid delivery pipeline to the second chamber 114, the cleaning fluid within the second chamber 114 is delivered to the surface to be cleaned via the fluid delivery pipeline and the disk brush, thereby wet-cleaning the surface to be cleaned.
It may be understood that, in some embodiments, the control mechanism may also control the fluid delivery pipeline to be simultaneously connected to the first chamber 111 and the second chamber 114, such that the medium to be treated within the first chamber 111 is delivered to the surface to be cleaned via the fluid delivery pipeline and the disk brush. Meanwhile, the cleaning fluid within the second chamber 114 is delivered to the surface to be cleaned via the fluid delivery pipeline and the disk brush, thereby increasing a fluid discharge amount from the disk brush and improving the cleaning efficiency.
It may be understood that the cleaning fluid outputted from the fluid delivery pipeline, after acting on the surface to be cleaned, can be collected into the first chamber 111 That is, the medium to be treated as collected in the first chamber 111 may include the original dirty fluid and solid impurities of the surface to be cleaned, or may also be the dirty fluid in the first chamber 111 and/or the second chamber 114, which is outputted by the fluid delivery pipeline to a designated location after the cleaning is completed.
The cleaning device includes a handheld cleaning device or a self-moving cleaning device. Specifically, the handheld cleaning device may be a handheld floor scrubber, a handheld floor polishing robot, or other cleaning devices that meet the requirements. The self-moving cleaning device is a device that autonomously walks in a specific area and can complete cleaning operations without manual operations. The self-moving cleaning device includes, but is not limited to, an automatic floor scrubber, an automatic integrated mop-sweeper, and the like. It may be understood that cleaning objects of the cleaning device include tiles, floors, concrete floors, glass surfaces, and other surface objects which have flat surfaces and can be cleaned with water.
In some possible embodiments provided by the present disclosure, as shown in
That is, according to the cleaning device provided by the embodiments of the present disclosure, the dirty fluid from the medium to be treated in the first chamber 111 is filtered using the first filter assembly 130. The filtered cleaning fluid is outputted from the interior of the first chamber 111 to the exterior of the first chamber 111 via the fluid discharging pipe 140, and is delivered via the fluid delivery pipeline to the surface to be cleaned and/or a wet cleaning portion for use, such that the dirty fluid in the medium to be treated can be reused after the filtering treatment, thereby increasing a utilization rate of water resources and reducing the waste of water resources, greatly saving water resources and energy and thus being suitable for popularization and application.
Meanwhile, the cleaning fluid that is filtered and then reused in the first chamber 111 is directly delivered to the surface to be cleaned and/or the wet cleaning portion via the fluid delivery pipeline. That is, the filtered cleaning fluid does not flow back to the second chamber 114, which can reduce the possibility that the filtered cleaning fluid contaminates the cleaning fluid within the second chamber 114, and is further conducive to ensuring that the cleaning fluid within the second chamber 114 has a higher cleaning degree, thereby improving a cleaning effect. In addition, the fluid delivery pipeline is connected to the fluid discharging pipe 140 after leading out of the second chamber 114 and then extends to the surface to be cleaned and/or the wet cleaning portion. As a result, the cleaning fluid having a high cleaning degree within the second chamber 114 may flow through the portion of the fluid delivery pipeline that leads out of the second chamber 114 and then connects to the fluid discharging pipe 140. Thus, a failure rate of the fluid delivery pipeline in this portion is low, which can thereby improve the maintenance efficiency.
For example, if the fluid discharging pipe 140 is communicated with the first chamber 111 and the second chamber 114, the fluid delivery pipeline is communicated with the second chamber 114 and extends to the surface to be cleaned and/or the wet cleaning portion. With such configuration, if the filtered cleaning fluid inside the first chamber 111 has a low cleaning degree, the fluid discharging pipe 140 configured to communicate the first chamber 111 and the second chamber 114 may be clogged. Meanwhile, since the cleaning fluid in the first chamber 111 flows into the second chamber 114, the cleaning degree of the cleaning fluid in the second chamber 114 may be reduced. Accordingly, the fluid delivery pipeline which is communicated with the second chamber and extends to the surface to be cleaned and/or the wet cleaning portion may become clogged, and a maintenance worker may need to check the pipeline sequentially if the clogging occurs, resulting in low maintenance efficiency.
However, according to embodiments provided by the present disclosure, the first chamber 111 is communicated with the fluid delivery pipeline via the fluid discharging pipe 140. Thus, if the filtered cleaning fluid inside the first chamber 111 has a low cleaning degree, what may be clogged is merely the fluid discharging pipe 140 configured to communicate the first chamber 111 and the fluid delivery pipeline, and a pipeline from a connection location between the fluid delivery pipeline and the fluid discharging pipe 140 to a designated location (e.g., the surface to be cleaned and/or the wet cleaning portion). That is, the portion of the fluid delivery pipeline that is led out of the second chamber 114 and then connected to the fluid discharging pipe 140 will not be clogged, which is thereby conductive to improving the maintenance efficiency and reducing the maintenance cost.
The first filter assembly 130 is disposed above the chamber bottom of the first chamber 111. Since the medium to be treated as accommodated in the first chamber 111 includes dirty fluid and solid impurities. Some solid impurities may be deposited in the chamber bottom of the first chamber 111, i.e., the dirty fluid in the chamber bottom is rather turbid. Thus, by configuring the first filter assembly 130 to be disposed above the chamber bottom of the first chamber 111, the possibility that the turbid dirty fluid in the chamber bottom is filtered by the first filter assembly 130 can be reduced, and the failure rate of the first filter assembly 130 can be accordingly reduced, which is conducive to prolonging the service life of the first filter assembly 130 and improving the reliability of the cleaning device.
It may be understood that a distance between the first filter assembly 130 and the chamber bottom of the first chamber 111 may be determined based on a height of the first chamber 111, a usage scenario of the cleaning device, or other means for meeting the requirements. For example, as shown in
It may be understood that the distance d from the first filter assembly 130 to the chamber bottom of the first chamber 111 may also be a fixed value. The d may, for example, be 30 mm, 50 mm, 80 mm, 100 mm, or any other value that satisfies the requirements, which is not specifically limited in the present disclosure.
Further, one end of the fluid discharging pipe 140 is communicated with the first filter assembly 130, and the other end of the fluid discharging pipe 140 is disposed outside the first chamber 111. That is, the dirty fluid in the first chamber 111 may be firstly filtered by the first filter assembly 130 before flowing into the fluid discharging pipe 140, i.e., the fluid flowing through the fluid discharging pipe 140 is the filtered cleaning fluid. Thus, the possibility that the fluid discharging pipe 140 is clogged by the unfiltered dirty fluid flowing into the fluid discharging pipe 140 can be reduced, which in turn improves the smoothness and reliability in outputting the fluid in the first chamber 111 to the fluid delivery pipeline, thereby improving the operation reliability of the fluid discharging assembly 120.
Further, the first filter assembly 130 is detachably connected to the first chamber 111, which facilitates the removal and installation of the first filter assembly 130 and the first chamber 111, and enables the first filter assembly 130 to be removed from the first chamber 111 for cleaning, maintenance or replacement. Thus, the operation is simple and the usage is easy, which is conducive to reducing the maintenance cost and suitable for popularization and application.
Specifically, the first filter assembly 130 may be detachably connected to the first chamber 111 via a connector such as a bolt, or the first filter assembly 130 may be detachably connected to the first chamber 111 by a connection structure such as a snap hook, a clamping slot, or the like.
In an example provided by the present disclosure, the cleaning device further includes a cleaning fluid supply system. The cleaning fluid supply system is provided on the device body 110, and includes the aforesaid fluid delivery pipeline. The fluid delivery pipeline is communicated with the fluid discharging pipe 140 disposed outside the first chamber 111, such that the filtered cleaning fluid is delivered to a designated location via the fluid discharging pipe 140 and the fluid delivery pipeline, Thus, the reuse of the filtered dirty fluid and the recycling of water resources can both be realized, which greatly increases the utilization rate of water resources, and saves water resources.
Further, the cleaning fluid supply system further includes a nozzle for providing the cleaning fluid to the surface to be cleaned. Alternatively, the cleaning device further includes a wet cleaning portion. The cleaning fluid supply system further includes a nozzle for providing the cleaning fluid to the wet cleaning portion; or the cleaning fluid supply system is capable of providing the cleaning fluid to both the surface to be cleaned and the wet cleaning portion via the nozzle. The fluid delivery pipeline is communicated with the nozzle. In this way, the dirty fluid in the first chamber 111 is delivered to the fluid delivery pipeline via the fluid discharging pipe 140 after being filtered by the first filter assembly 130 and then sprayed by the fluid delivery pipeline and the nozzle to the surface to be cleaned and/or the wet cleaning portion. Thus, the dirty fluid can be reused after being cleaned with the filter treatment, and the recycling of water resources can be realized, which greatly increases the utilization rate of water resources, reduces the use cost, reduces the possibility that the dirty fluid in the first chamber 111 contaminates the cleaning fluid in the second chamber after being filtered by the first filter assembly 130, and is thereby suitable for popularization and application.
It may be understood that a pump or other necessary components may also be provided on the fluid delivery pipeline, such that the filtered cleaning fluid can be delivered to the nozzle in sufficient quantity and in a timely manner via the fluid discharging pipe 140 and the fluid delivery pipeline, thereby improving the cleaning efficiency and ensuring a good cleaning effect.
It may be understood that since the fluid delivery pipeline is communicated with the second chamber 114 and further communicated with the first chamber 111 via the fluid discharging pipe, when a fluid level in the first chamber 111 meets a preset height in actual use, the fluid delivery pipeline can be enabled to preferentially output the filtered cleaning fluid in the first chamber 111 via the fluid discharging pipe, so as to increase the utilization rate of water resources. In addition, when the cleaning fluid filtered by the first filter assembly 130 in the first chamber 111 is unable to meet a demand amount of the surface to be cleaned and/or the wet cleaning portion, the fluid delivery pipeline replenishes the cleaning fluid contained in the second chamber to the fluid delivery pipeline to ensure that a supply amount of the cleaning fluid meets a cleaning demand, and to ensure good cleaning efficiency and cleaning effect. It may be understood that, in some possible embodiments, in order to reduce the size of the cleaning device, settings of the fresh water tank may be simplified, i.e., the fluid delivery pipeline is only communicated with the fluid discharging pipe 140.
Specifically, a fluid level detection device may be provided in the first chamber 111 to detect whether the fluid level in the first chamber 111 reaches a predetermined height. The predetermined height may be equal to a distance between the first filter assembly 130 and the chamber bottom of the first chamber 111, or the predetermined height may be other values that satisfy the requirements, which is not specifically limited in the present disclosure.
In some possible embodiments provided by the present disclosure, as shown in
In the aforesaid embodiments, the first filter assembly 130 has a greater filter fineness than the second filter assembly 150, which is conducive to reducing the possibility that the cleaning fluid filtered by the first filter assembly 130 causes the second filter assembly 150 to fail due to a low cleaning degree. That is, the first filter assembly 130 plays a certain protective role for the second filter assembly 150, which thereby prolongs the service life of the second filter assembly 150, reduces a failure rate of the cleaning device, and improves the reliability of the cleaning device.
Further, the first filter assembly 130 and the second filter assembly 150 may be of the same filter structure, or the first filter assembly 130 and the second filter assembly 150 may be of different filter structures. For example, if both the first filter assembly 130 and the second filter assembly 150 include a filtering mesh, the filtering mesh of the first filter assembly 130 has a smaller mesh size than the filtering mesh of the second filter assembly 150, i.e., the filtering mesh of the first filter assembly 130 is denser than the filtering mesh 138 of the second filter assembly, such that the first filter assembly 130 has a greater filter fineness than the second filter assembly 150. The filtering mesh is a physical filter, which has a simple structure and low cost, and is suitable for popularization and application.
In some possible embodiments provided by the present disclosure, as shown in
The fluid discharging pipe 140 includes a first pipeline 141 and a second pipeline 142. The first pipeline 141 is disposed within the first chamber 111 and configured to communicate the first filter assembly 130 and the connection pipe 160, and the second pipeline 142 is disposed outside the first chamber 111 and configured to communicate the connection pipe 160 and the fluid delivery pipeline, such that the first pipeline 141 and the second pipeline 142 are connected to the connection pipe 160 on the first chamber 111 respectively. Further, the connection pipe 160 is sealingly connected to the first chamber 111, or the first chamber 111 is pre-buried with the connection pipe 160, which can thereby improve the sealing performance of the connection between the fluid delivery pipe 140 and the first chamber 111, reduce the probability of poor sealing performance of the first chamber 111 as caused by the fluid delivery pipe 140 passing through the first chamber 111, and improve the sealing performance of the first chamber 111. It may be understood that the second pipeline 142 disposed outside the first chamber 111 is provided with the second filter assembly 150.
In the above embodiments, the first pipeline 141 is detachably connected to the connection pipe 160, which facilitates the removal and installation of the first pipeline 141 and the connection pipe 160, enables the first pipeline 141 to be removed from the connection pipe 160 for maintenance, and is thereby easy to operate.
The first pipeline 141 is detachably connected to the first filter assembly 130, which facilitates the removal and installation of the first pipeline 141 and the first filter assembly 130, enables the first pipeline 141 to be removed from the first filter assembly 130 for maintenance or the first filter assembly 130 to be removed from the first pipeline 141 for maintenance, and is thereby easy to operate.
By configuring the first pipeline 141 to be detachably connected to both the connection pipe 160 and the first filter assembly 130 at the same time, the first pipeline 141 can be removed from the first filter assembly 130 and the connection pipe 160 for maintenance and replacement, which is easy to operate, is conducive to reducing the cost of replacing parts, and is suitable for popularization and application.
The second pipeline 142 is detachably connected to the connection pipe 160, which facilitates the removal and installation of the second pipeline 142 and the connection pipe 160, enables the second pipeline 142 to be removed from the connection pipe 160 for maintenance, and is thereby easy to operate.
The second pipeline 142 is detachably connected to the second filter assembly 150, which facilitates the removal and installation of the second pipeline 142 and the second filter assembly 150, enables the second pipeline 142 to be removed from the second filter assembly 150 for maintenance or the second filter assembly 150 to be removed from the second pipeline 142 for maintenance, and is thereby easy to operate.
By configuring the second pipeline 142 to be detachably connected with both the connection pipe 160 and the second filter assembly 150 at the same time, the second pipeline 142 can be removed from the second filter assembly 150 and the connection pipe 160 for maintenance and replacement, which is easy to operate, is conducive to reducing the cost of replacing parts, and is suitable for popularization and application.
In some possible embodiments provided by the present disclosure, the first chamber 111 and the second chamber 114 are of a one-piece structure or a split structure, and the different structures of the first chamber 111 and the second chamber 114 can meet the needs of the cleaning device in different structures, which enlarges the application scope of the product.
On one hand, the first chamber 111 and the second chamber 114 are of a one-piece structure, and the device body 110 may be configured as a cavity with a certain thickness, which is formed with the first chamber 111 and the second chamber 114. For example, the cavity may be integrally molded with a material such as plastic to improve the elasticity, toughness, corrosion resistance, and collision prevention performance of the device body 110, and to reduce the weight of the device body 110. A peripheral wall of the cavity may be formed in advance with a plurality of slots, depressions, clamping positions, or the like for mounting the fluid discharging pipe 140, the second filter assembly 150, the fluid delivery pipeline, a traveling mechanism, and a battery component, and the like. Meanwhile, integrating the device body 110 with the first chamber 111 and the second chamber 114 also eliminates the need for additional fabrication of other members such as a housing, which can simplify the production process. In a case where the floor scrubber is used for cleaning a large-scale place, the size of the device body 110 can be increased to increase the volumes of the first chamber 111 and the second chamber 114, such that the capacity to accommodate the medium to be treated and the cleaning fluid can be increased, and the cleaning power can be increased.
On the other hand, the first chamber 111 and the second chamber 114 are of a split structure. For example, the first chamber 111 is a dirty fluid tank, the second chamber 114 is a fresh water tank, and the two chambers are respectively mounted on the device body 110. Specifically, the dirty fluid tank having the first chamber 111 may be detachably connected to the device body 110, such that the dirty fluid tank can be removed from the device body 110 for cleaning and maintenance. Similarly, the fresh water tank having the second chamber 114 can be detachably connected to the device body 110, such that the fresh water tank can be removed from the device body 110 for cleaning and maintenance, which is simple to operate and easy to use.
In some possible embodiments provided by the present disclosure, as shown in
Specifically, the cleaning device further includes a connector. For example, the connector may be a bolt, and the bolt connects the mounting rack 135 and the first chamber 111, which can realize the detachable connection between the first filter assembly 130 and the first chamber 111, facilitate the removal of the first filter assembly 130 from the first chamber 111 for maintenance, cleaning and replacement, and is thereby simple to operate.
In the aforesaid embodiments, as shown in
Specifically, the filter body 131 is of a cylindrical structure That is, the first plate 136 and the second plate 137 are two bottom surfaces of the cylinder, and the filtering mesh 138 is a side surface of the cylinder. In addition, a surface area of the filtering mesh 138 is larger than a sum of a surface area of the first plate 136 and a surface area of the second plate 137, such that the contact area between the filtering mesh 138 and the dirty fluid can be further increased, which is conducive to prolonging the service life of the filtering mesh 138 and improving the filter efficiency.
Further, the mounting rack 135 is connected to the second plate 137, such that the filter body 131 is connected to the first chamber 111, thereby realizing a detachable connection between the first filter assembly 130 and the first chamber 111. It may be understood that the mounting rack 135 is detachably connected to the second plate 137, which makes it possible to remove the filter body 131 from the mounting rack 135 for maintenance, cleaning and replacement, and is thereby easy to operate and conducive to reducing the cost for replacing parts.
Further, as shown in
Specifically, the limiting portion 139 is a protruding structure provided on the first plate 136, and the positioning portion 113 is a groove structure provided on the inner wall of the first chamber 111. The pre-positioning of the first filter assembly 130 and the first chamber 111 can be realized by matching the protruding structure and the groove structure. Then, by connecting a threaded hole in the first chamber 111 to a through hole in the mounting rack 135 through a bolt, the first filter assembly 130 can be reliably and accurately fixed on the first chamber 111, which is simple to operate, rapid to assemble, and thereby suitable for popularization and application.
The limiting portion 139 is a conical protrusion, and the positioning portion 113 is a circular groove. It may be understood that the limiting portion 139 and the positioning portion 113 may also be of other structures that satisfy the requirements, which is not specifically limited in the present disclosure.
The present disclosure has been illustrated by aforesaid embodiments, but it shall be understood that the aforesaid embodiments are merely exemplary and illustrative, and are not intended to limit the present disclosure to the scope of the embodiments as described. Further, it may be understood by those skilled in the art that the present disclosure is not limited to the aforesaid embodiments and that a greater variety of variations and modifications may be made in accordance with the teachings of the present disclosure, all of which fall within the protection scope as claimed by the present disclosure. The protection scope of the present disclosure is defined by the appended claims and their equivalent scope.
Number | Date | Country | Kind |
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202110939330.7 | Aug 2021 | CN | national |
This application is a U.S. National Stage filing under 35 U.S.C. § 371 of International Application No. PCT/CN2022/082325, filed on Mar. 22, 2022, which is based on and claims priority of the Chinese Patent Application No. 202110939330.7 filed on Aug. 16, 2021, and the disclosure of the Chinese patent application is hereby incorporated herein by reference in its entirety as part of this application.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2022/082325 | 3/22/2022 | WO |