Dust extraction system and dry road sweeper

Abstract

The application discloses a dust removal system and a dry road sweeper, and relates to the dust removal field. The dust removal system comprises a dust removal device, a suction device and a self-cleaning device. The dust removal device is provided with a separation cavity, an air inlet, a filter outlet and a self-cleaning opening. The outlet of the suction device is connected with the air inlet, and the self-cleaning device is configured to cooperate with the self-cleaning opening to clean the dust removal device. The self-cleaning device can selectively connect the dust removal device and the suction device to realize the self-cleaning of the dust removal system or the switching of the dust removal mode. According to the dust removal system and the dry road sweeper, dust can be cleaned and maintained by using the suction mode, and the dust raising is low. Meanwhile, the road sweeper can be cleaned and maintained at any time and any place by using the road sweeper as a power source and the self-cleaning device, and the suction performance is better.

Description

Technical Field

[0001] This invention relates to the field of environmental sanitation and cleaning technology, and in particular to a dust removal system and a dry sweeper. Background Technology

[0002] Small dry sweepers utilize negative pressure created by a blower to draw garbage into the suction nozzle. The garbage is then transported to a garbage bin or can through a suction pipe connected to the nozzle. Dust generated is filtered through a filter cloth or cartridge in the dust collection box before being discharged outside the vehicle. To prevent long-term clogging of the filter cloth or cartridge and ensure effective cleaning, existing dry dust collection systems typically incorporate a vibration mechanism to tap the filter cloth and remove garbage and dust, ensuring proper equipment operation. However, vibration or tapping is not a thorough cleaning method. After operation, manual tapping with a wooden stick or air blowing is still required, resulting in high labor intensity and significant dust generation during cleaning and maintenance.

[0003] Meanwhile, dry sweepers use less water but generate more dust during operation, resulting in a significant amount of dust on the machine's surface. Cleaning this dust, especially on electric sweepers where electrical components cannot be cleaned with water, requires external air-blowing devices, leading to cumbersome and costly maintenance. Furthermore, air-blowing cleaning necessitates stopping the machine at a designated location equipped with such devices, making real-time dust removal impossible. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, one objective of this invention is to provide a dust removal system with a self-cleaning interface and a self-cleaning device, which can complete the self-cleaning of the dust removal system anytime and anywhere, which is convenient and quick, reduces dust and labor intensity during cleaning, and has a better cleaning effect.

[0006] According to an embodiment of the present invention, a dust removal system includes a dust removal device, a suction device, and a self-cleaning device. The dust removal device has a separation chamber and an air inlet, a filter outlet, and a self-cleaning opening communicating with the separation chamber. The outlet of the suction device is connected to the air inlet. The self-cleaning device is configured to cooperate with the self-cleaning opening for self-cleaning of the dust removal device. The self-cleaning device can selectively connect the dust removal device and the suction device to realize the switching between self-cleaning and dust removal modes of the dust removal system.

[0007] According to the dust removal system of the present invention, by providing a self-cleaning opening in the dust removal device and selectively engaging the self-cleaning opening with the self-cleaning device, when it is necessary to clean the garbage and dust adhering to the filter element in the dust removal device, the garbage and dust in the separation chamber can be cleaned more accurately and quickly through the self-cleaning inlet using the self-cleaning device. This eliminates the need for an external air blowing device or stopping at a designated location with an air blowing device for cleaning and maintenance, allowing for real-time dust removal. Furthermore, by selectively connecting the outlet of the suction device to the external space of the separation chamber, most of the garbage can be directly discharged from the outlet of the suction device.

[0008] In addition, the dust removal system according to the above embodiments of the present invention may also have the following additional technical features:

[0009] Optionally, the dust removal device further includes an air inlet chamber and a self-cleaning outlet, wherein the air inlet chamber is connected to the air inlet and the self-cleaning outlet respectively, and the self-cleaning outlet is used to connect to the external space of the separation chamber.

[0010] Optionally, the dust removal device includes a dust collection box and a valve, wherein the dust collection box is configured to form an air inlet chamber and a separation chamber; the valve is connected to the dust collection box and configured to open and close the air inlet chamber, and when the valve closes the air inlet chamber, the air inlet and the self-cleaning outlet are located on the same side of the valve.

[0011] Optionally, the self-cleaning outlet is located on the dust collection box, and the dust collection device further includes a cover for opening and closing the self-cleaning outlet.

[0012] Optionally, the filter outlet is located on the dust collection box, and the dust collection device further includes a filter for filtering the airflow delivered from the filter outlet.

[0013] Optionally, the self-cleaning opening is located on the dust collection box, and the dust collection device further includes a door for opening and closing the self-cleaning opening.

[0014] Optionally, the dust collector has a trash can interface, and both the air inlet chamber and the separation chamber are connected to the trash can interface.

[0015] Optionally, the self-cleaning device further includes a self-cleaning straw, one end of which is detachably inserted through the self-cleaning opening and connected to the separation chamber, and the other end of which is detachably connected to the inlet of the suction device.

[0016] Optionally, the self-cleaning device further includes a cleaning nozzle and an operating rod. The cleaning nozzle is connected to one end of the self-cleaning straw and is adapted to penetrate the separation chamber to clean the internal space of the separation chamber. The operating rod is connected to the cleaning nozzle or the self-cleaning straw and is used to drive the cleaning nozzle. The length of the operating rod is fixed or adjustable.

[0017] Optionally, the suction port of the cleaning nozzle is an inclined plane that is tilted relative to the axis of the cleaning nozzle.

[0018] Optionally, the dust removal system further includes a dust-removing mechanism for cleaning the filter device located at the filter outlet.

[0019] Optionally, the dust removal system further includes the three-way device comprising a valve body and a reversing assembly. The valve body has a first interface, a second interface, and a third interface. The first interface is used to connect to the inlet of the suction device, the second interface is used to connect to the dust suction port, and the third interface is used to connect to the self-cleaning opening. The reversing assembly is connected to the valve body and is used to selectively connect the first interface to the second interface or the third interface.

[0020] Optionally, the reversing assembly includes a valve cover and a baffle, the valve cover being detachably sealed to the third interface; the baffle being movably disposed within the valve body to connect or disconnect the first interface and the second interface.

[0021] Optionally, the first interface and the second interface are opposite to each other, and the baffle is configured to be movable along the opening direction of the third interface.

[0022] Optionally, a locking member is provided on the side of the baffle facing the third interface. The locking member is releasably connected to the valve body to lock the baffle in a position where the first interface and the second interface are connected.

[0023] According to an embodiment of the present invention, the dry sweeper includes a body, a garbage bin, and a dust removal system as described above. The dust removal system is installed on the body, and the garbage bin is opposite to the dust removal device of the dust removal system.

[0024] According to the dry sweeper in the embodiments of the present invention, by applying the aforementioned dust removal system, the sweeper itself can be used as a power source for cleaning and maintenance, which is more economical and convenient; the dust and garbage of the filter device and the whole machine are cleaned and maintained by using a suction device to pick up the dust and garbage, resulting in less dust and less labor intensity. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the working principle of the self-cleaning dust removal system in some embodiments of the present invention.

[0026] Figure 2 This is a schematic diagram illustrating the working principle of the dust collection system in some embodiments of the present invention.

[0027] Figure 3 This is a schematic diagram of the structure of the dust removal device of the dust removal system in some embodiments of the present invention.

[0028] Figure 4 This is a schematic diagram of the self-cleaning operation of the dust removal system in some embodiments of the present invention.

[0029] Figure 5 This is a schematic diagram illustrating the working principle of the self-cleaning dust removal system in some embodiments of the present invention.

[0030] Figure 6 This is a cross-sectional view of the dust removal device of the dust removal system in some embodiments of the present invention.

[0031] Figure 7 This is a schematic diagram illustrating the working principle of the self-cleaning dust removal system in some embodiments of the present invention.

[0032] Figure 8 This is a schematic diagram of the self-cleaning suction tube assembly of the dust removal system in some embodiments of the present invention.

[0033] Figure 9 This is a schematic diagram of the three-way device of the dust removal system in some embodiments of the present invention.

[0034] Figure 10 This is a cross-sectional view of the three-way device of the dust removal system in some embodiments of the present invention.

[0035] Figure 11 This is a cross-sectional view of the three-way device of the dust removal system in some embodiments of the present invention.

[0036] Figure 12 This is a cross-sectional view of the three-way device of the dust removal system in some embodiments of the present invention.

[0037] Figure 13 This is a cross-sectional view of the three-way device of the dust removal system in some embodiments of the present invention.

[0038] Figure 14 This is a schematic diagram showing the connection between the dust removal device and the garbage bin of a dry sweeper in some embodiments of the present invention.

[0039] Reference numerals: Dust removal system 100, dust removal device 110, separation chamber 111, air inlet 112, filter outlet 113, self-cleaning opening 114, suction device 120, suction port 121, air inlet chamber 115, self-cleaning outlet 116, dust collection box 117, valve 118, cover plate 119, filter device 130, door 131, trash can interface 132, self-cleaning suction pipe 122, cleaning nozzle 123, operating lever 124, three-way device 140, valve body 133, replacement The components include: component 134, first interface 135a, second interface 135b, third interface 135c, valve cover 136, baffle 137, locking element 138, main suction pipe 125, back-blowing pipe 126, dust-vibrating mechanism 150, trash can 160, motor 151, bearing with seat 152, tilting plate 153, first connecting flange 154, second connecting flange 155, first clamp 156, second clamp 157, first suction pipe 158, second suction pipe 159, and self-cleaning device 170. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0044] This application provides a dust removal system 100 and a dry sweeper, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0045] The embodiments of the present invention are described in detail below. Please refer to [link / reference]. Figures 1 to 2 According to the dust removal system 100 of the present invention, a dust removal device 110, a suction device 120, and a self-cleaning device 170 are included. The dust removal device 110 and the suction device 120 are connected. The suction device 120 is used to suck up garbage and particulate matter from the ground or work surface into the dust removal device 110. The dust removal device 110 is used to filter and clean the dust-laden airflow drawn by the suction device 120. After filtration by the dust removal device 110, the garbage and particulate matter are trapped in the dust removal device 110, and the airflow is discharged through the filter outlet 113. In addition, during the filtration process, particulate matter accumulates in the dust removal device 110, affecting the filtration effect of the dust removal device 110. The self-cleaning device 170 is used for self-cleaning of the dust removal device 110. The self-cleaning device 170 can selectively connect the dust removal device 110 and the suction device 120 to realize the switching between self-cleaning and dust removal modes of the dust removal system 100.

[0046] Specifically, the dust removal device 110 has a separation chamber 111 and an air inlet 112, a filter outlet 113, and a self-cleaning opening 114 communicating with the separation chamber 111. Please refer to [link / reference needed]. Figure 3 The outlet of the suction device 120 is connected to the air inlet 112 of the separation chamber 111. The air inlet 112 serves as the channel for airflow entry. The dust-laden airflow drawn in enters the separation chamber 111 through the outlet of the suction device 120 and the air inlet 112. The separation chamber 111 is mainly used to separate and filter the drawn airflow. After filtration within the separation chamber 111, the airflow flows out from the filter outlet 113, while dust particles remain and accumulate in the separation chamber 111 of the dust removal device 110. Furthermore, the outlet of the suction device 120 is configured to selectively connect to either the internal or external space of the separation chamber 111. When the outlet of the suction device 120 connects to the internal space of the separation chamber 111, the suction device 120 guides the drawn airflow into the separation chamber 111. Please refer to [link to relevant documentation]. Figure 2 When the outlet of the suction device 120 is connected to the external space of the separation chamber 111, the suction device 120 discharges the sucked-in airflow outside the separation chamber 111. Please refer to [link to relevant documentation]. Figures 5 to 7 The inlet of the suction device 120 is configured to selectively connect to either the self-cleaning opening 114 or the suction port 121. The self-cleaning opening 114 cooperates with the self-cleaning device 170 for self-cleaning of the dust removal device 110. For example, the self-cleaning device 170 extends into the self-cleaning opening 114 or the self-cleaning device 170 is connected to the self-cleaning opening 114, etc. Please refer to [link to relevant documentation]. Figure 4 The suction port 121 is used for suction of the working surface. In dust removal mode, the inlet of the suction device 120 is connected to the suction port 121, and the outlet is connected to the internal space of the separation chamber 111. In self-cleaning mode, the inlet of the suction device 120 is connected to the self-cleaning device 170, and the outlet is connected to the external space of the separation chamber 111. When the dust removal system 100 needs to perform self-cleaning, the self-cleaning device 170 is connected to the dust removal device 110 and the suction device 120. The particles accumulated in the dust removal device 110 can be sucked up through the self-cleaning opening 114 under the suction action of the suction device 120 and discharged outside the dust removal system 100. After self-cleaning is completed, the self-cleaning device 170 is removed or the channel between the self-cleaning device 170 and the dust removal device 110 and the suction device 120 is closed, and the dust removal system 100 can enter the dust removal mode.

[0047] According to the dust removal system 100 of the present invention, by providing a self-cleaning device 170 and a self-cleaning opening 114 in the dust removal device 110, and selectively connecting the self-cleaning opening 114 to the inlet of the suction device 120 through the self-cleaning device 170, when it is necessary to clean the garbage and dust adhering to the filter element in the dust removal device 110, the self-cleaning device 170 can be extended into the separation chamber 111 through the self-cleaning opening 114 to clean the garbage and dust more accurately and quickly, without the need for an external air blowing device or stopping at a designated location with an air blowing device for cleaning and maintenance, and dust can be cleaned in real time. In addition, by selectively connecting the outlet of the suction device 120 to the external space of the separation chamber 111, most of the garbage can be directly discharged from the outlet of the suction device 120, improving the working efficiency of the dust removal system 100.

[0048] In some embodiments, please refer to Figure 6 and Figure 7 The dust removal device 110 also has an air inlet chamber 115 and a self-cleaning outlet 116. The air inlet chamber 115 is connected to the air inlet 112 and the self-cleaning outlet 116 respectively. Airflow can enter the air inlet chamber 115 from the air inlet 112 and flow out from the self-cleaning outlet 116. The self-cleaning outlet 116 is used to connect to the external space of the separation chamber 111. The outlet of the suction device 120 is connected to the external space of the separation chamber 111 through the air inlet chamber 115 and the self-cleaning outlet 116. Specifically, the dust removal system 100 may be provided with a dust suction port 121, which is used for dust suction of the working surface. The suction device 120 generates negative pressure by rotating the fan, and draws airflow containing dust and debris from the suction port 121 or the self-cleaning opening 114. After entering the suction device 120, the airflow passes through the air inlet 112 of the dust removal device 110 from the outlet of the suction device 120 and enters the air inlet chamber 115. One end of the air inlet chamber 115 is provided with a self-cleaning outlet 116. Airflow that does not enter the separation chamber 111 is discharged to the outside of the separation chamber 111 through the self-cleaning outlet 116.

[0049] In some embodiments, please refer to Figures 3 to 6The dust removal device 110 includes a dust collection box 117 and a valve 118. The dust collection box 117 is the main structure housing the various components of the dust removal device 110, and it contains an air inlet chamber 115 and a separation chamber 111. The air inlet chamber 115 receives airflow, and air containing dust and debris is introduced into the air inlet chamber 115 through the air inlet 112. The air inlet chamber 115 guides the air to the separation chamber 111 for further processing. The separation chamber 111 separates particulate matter, and the separation effect can be achieved by a special structure or filter material inside the dust removal device 110. The valve 118 is connected to the dust collection box 117 and is configured to open and close the air inlet chamber 115. When the valve 118 closes the air inlet chamber 115, the air inlet 112 and the self-cleaning outlet 116 are located on the same side of the valve 118. When the air inlet chamber 115 is opened, the airflow in the air inlet chamber 115 can enter the dust collection box 117, be filtered by the filter device 130 in the dust collection box 117, and then flow out from the filter outlet 113. When the air inlet chamber 115 is closed, the air inlet 112 and the self-cleaning outlet 116 are located on the same side of the valve 118, and airflow can occur between the air inlet 112 and the self-cleaning outlet 116. The airflow in the air inlet chamber 115 flows out of the dust collection box 117 through the self-cleaning outlet 116.

[0050] In some embodiments, please refer to Figure 3 The self-cleaning outlet 116 is located on the dust collection box 117, and the dust collection device 110 also includes a cover plate 119 for opening and closing the self-cleaning outlet 116. The cover plate 119 can be installed on the self-cleaning outlet 116 by hand-tightening screws. When the cover plate 119 is installed, the self-cleaning outlet 116 is in the closed state, and the airflow in the air inlet chamber 115 cannot be discharged through the self-cleaning outlet 116. When the cover plate 119 is removed, the self-cleaning outlet 116 is in the open state, and the airflow in the air inlet chamber 115 can be discharged from the dust collection box 117 through the self-cleaning outlet 116. By setting the cover plate 119 to control the opening and closing of the self-cleaning outlet 116, the operating mode of the dust collection device 110 can be flexibly adjusted as needed to achieve control of airflow emission.

[0051] In some embodiments, please refer to Figure 6 The filter outlet 113 is located on the dust collection box 117, and the dust collection device 110 also includes a filter device 130 for filtering the airflow delivered from the filter outlet 113. Specifically, the dust collection box 117 is equipped with a filter device 130 for filtering the airflow, and the dust collection box 117 has a filter outlet 113 at the top for the filtered airflow to pass through. After the airflow carrying dust, garbage, or other particulate matter enters the dust collection box 117, it is first filtered by the filter device 130, which traps the dust, garbage, and particulate matter on the filter device 130. The filtered airflow then flows out from the filter outlet 113. By setting the filter device 130 to filter the airflow delivered from the filter outlet 113, the content of particulate matter and pollutants in the exhaust airflow can be effectively reduced.

[0052] In some embodiments, please refer to Figure 4 The self-cleaning opening 114 is located on the dust collection box 117, and the dust collection device 110 also includes a door 131 for opening and closing the self-cleaning opening 114. Specifically, the self-cleaning opening 114 can be located on the rear side of the dust collection box 117, and the self-cleaning opening 114 is provided with an openable and closable door 131. The opening and closing of the self-cleaning opening 114 is achieved by opening and closing the door 131. When the door 131 is open, the self-cleaning opening 114 is in the open state, at which time the suction device 120 can be inserted into the self-cleaning opening 114 to vacuum and clean the dust and debris in the dust collection box 117; when the door 131 is closed, the self-cleaning opening 114 is in the closed state, which facilitates the airflow to flow through the filter device 130 and out from the filter outlet 113. By setting the door 131 to control the opening and closing of the self-cleaning opening 114, the operation mode of the dust collection device 110 can be flexibly adjusted as needed to complete self-cleaning or vacuuming dust removal operations.

[0053] In some embodiments, please refer to Figure 4 The dust collector 117 has a trash can interface 132, and the air inlet chamber 115 and the separation chamber 111 are both connected to the trash can interface 132. The trash can interface 132 can connect the dust collector 110 and the trash can 160, and is used to collect the garbage and larger particles separated by gravity in the air inlet chamber 115. The air inlet chamber 115 and the separation chamber 111 are connected to the trash can interface 132. After the airflow mixed with garbage is drawn into the air inlet chamber 115, it enters the trash can 160 through the trash can interface 132. Some garbage and particles fall into the trash can 160 under the action of gravity, and the remaining airflow enters the separation chamber 111 through the trash can interface 132 for separation and filtration. The setting of the trash can interface 132 can effectively perform preliminary separation of the airflow mixed with garbage, reduce the workload of the filter device 130 in the separation chamber 111 for processing and cleaning, and also facilitate the centralized collection of separated garbage in the trash can 160, which can improve the efficiency and convenience of the cleaning and processing process.

[0054] In some embodiments, please refer to Figure 4 and Figure 1The self-cleaning device 170 also includes a self-cleaning suction tube 122. One end of the self-cleaning suction tube 122 is detachably inserted through the self-cleaning opening 114 and connected to the separation chamber 111. The other end of the self-cleaning suction tube 122 is detachably connected to the inlet of the suction device 120. Specifically, under the suction action of the suction device 120, the self-cleaning suction tube 122 can transport the garbage and particles in the separation chamber 111 to the inlet of the suction device 120. One end of the self-cleaning suction tube 122 is inserted through the self-cleaning opening 114, allowing it to connect to the separation chamber 111 and directly suck up the garbage and particles remaining in the separation chamber 111. The other end of the self-cleaning suction tube 122 is connected to the inlet of the suction device 120, allowing the suction device 120 to effectively drive airflow and extract particles and pollutants from the self-cleaning suction tube 122 and transport them to the dust collection box 117. By connecting the self-cleaning straw 122 to the self-cleaning opening 114 and the suction device 120, contaminants in the separation chamber 111 can be easily cleaned and collected, reducing the residue and accumulation of garbage and particulate matter in the separation chamber 111.

[0055] In some embodiments, please refer to Figure 8 The self-cleaning device 170 also includes a cleaning nozzle 123 and an operating rod 124. The cleaning nozzle 123 is connected to one end of the self-cleaning suction tube 122 and is adapted to penetrate into the separation chamber 111 to clean the internal space of the separation chamber 111. The cleaning nozzle 123 is used to directly suck up the debris and particles adhering to the separation chamber 111. The operating rod 124 is connected to the cleaning nozzle 123 or the self-cleaning suction tube 122. The operating rod 124 can be connected to the cleaning nozzle 123 or the self-cleaning suction tube 122 and is used to drive the cleaning nozzle 123. The length of the operating rod 124 is fixed or adjustable. For example, a dividing pin can be provided on the operating rod 124 to adjust the length of the operating rod 124 for convenient self-cleaning operation. By connecting the cleaning nozzle 123 and the operating rod 124, the operator can flexibly clean various parts of the separation chamber 111 and maintain the dust removal system 100 in good working condition.

[0056] Preferably, such as Figure 8 As shown, the suction nozzle 123 has an inlet that is angled relative to its axis. This angled inlet alters the direction and speed of airflow, increasing suction power and cleaning efficiency. Debris and particles adhering to the separation chamber 111 are guided by the angled surface as they enter the cleaning nozzle 123, making them easier to suck into the suction nozzle. Furthermore, the angled design prevents excessive clogging of the suction nozzle during suction, improving cleaning efficiency.

[0057] In some embodiments, the dust removal system 100 may further include a dust-removing mechanism 150, which is used to clean the filter device 130 located at the filter outlet 113. Specifically, the dust-removing mechanism 150 may clean the filter device 130 by tapping it, or by using a vibration device or other means to shake or wash off the particles on the filter device 130. By performing dust-removing cleaning, clogging of the filter device 130 can be avoided, thereby maintaining the stable filtration effect of the dust removal system 100.

[0058] In some embodiments, please refer to Figure 9 The dust removal system 100 also includes a three-way device 140, which is used to control the flow direction of airflow in the pipeline system to achieve different operating modes. The three-way device 140 includes a valve body 133 and a reversing assembly 134. The valve body 133 generally forms the structural outline of the three-way device 140 and is used to support and accommodate the reversing assembly 134. The valve body 133 has three channels for controlling the flow direction of airflow. The reversing assembly 134 is used to change the flow direction of airflow within the three-way device 140. The valve body 133 has three channels corresponding to three interfaces: a first interface 135a, a second interface 135b, and a third interface 135c. The first interface 135a is used to connect to the inlet of the suction device 120, the second interface 135b is used to connect to the dust suction port 121, and the third interface 135c is used to connect to the self-cleaning opening 114. The reversing component 134 is connected to the valve body 133 and is used to selectively connect the first interface 135a to the second interface 135b or the third interface 135c. When the reversing component 134 connects the first interface 135a to the second interface 135b, the inlet of the suction device 120 is connected to the dust suction port 121, thereby cleaning dust and contaminants on the working surface. When the reversing component 134 connects the first interface 135a to the third interface 135c, the inlet of the suction device 120 is connected to the self-cleaning opening 114, which enables cleaning and drainage of the separation chamber 111 and the filter device 130. The design of valve body 133 allows three-way device 140 to switch the working mode of suction device 120 as needed.

[0059] In some embodiments, please refer to Figure 9The reversing assembly 134 includes a valve cover 136 and a baffle 137. The valve cover 136 can be opened to seal the third port 135c. When the valve cover 136 seals the third port 135c, it prevents airflow from the three-way device 140 from flowing out of the third port 135c, and external airflow cannot enter the three-way device 140 through the third port 135c. This ensures that airflow can only be drawn in from the second port 135b connected to the suction port 121 and flow out from the first port 135a connected to the inlet of the suction device 120. When the valve cover 136 is open, the third port 135c of the three-way device 140 is connected to the first port 135a, and the aforementioned self-cleaning suction tube 122 can be connected to the third port 135c to complete the self-cleaning of the separation chamber 111. The baffle 137 is movably disposed within the valve body 133 to connect or separate the first port 135a and the second port 135b. For details, please refer to [link to relevant documentation]. Figures 10 to 13 The movable baffle 137 can move left and right inside the valve body 133. The left end in the figure is the end furthest from the third port 135c, and the right end is the end closest to the third port 135c. For example... Figure 10 and Figure 11 As shown, when the baffle 137 is at the rightmost end of the three-way device 140, the first port 135a and the second port 135b are connected, and the airflow drawn in from the second port 135b can flow to the first port 135a through the valve body 133. Figure 12 and Figure 13 As shown, when the baffle 137 is at the leftmost end of the three-way device 140, the baffle 137 closes the channel from the second port 135b to the first port 135a, and the airflow can only enter from the third port 135c and flow to the first port 135a. By controlling the state of the valve cover 136 and the baffle 137, the flexibility and controllability of the dust removal system 100 are enhanced, and the user can adjust the reversing component 134 to achieve the desired flow direction connection.

[0060] In some embodiments, please refer to Figures 10 to 13The first port 135a and the second port 135b are opposite each other, and the baffle 137 is configured to be movable along the opening direction of the third port 135c. Specifically, the first port 135a and the second port 135b are located at opposite ends of the valve body 133, and they can be connected or isolated by moving the baffle 137. The baffle 137 can move freely along the opening direction of the third port 135c to control the flow direction of the airflow in the three-way device 140. When the baffle 137 moves away from the opening direction of the third port 135c and is completely aligned with the first port 135a and the second port 135b, the baffle 137 separates the first port 135a and the second port 135b, so that the airflow can only enter from the third port 135c; while when the baffle 137 moves towards the opening direction of the third port 135c and is adjacent to the opening of the third port 135c, the first port 135a and the second port 135b are connected, and the airflow can enter from the second port 135b and flow to the first port 135a.

[0061] In some embodiments, please refer to Figures 10 to 13 A locking member 138 is provided on the side of the baffle 137 facing the third interface 135c. The locking member 138 is releasably connected to the valve body 133 to lock the baffle 137 in a position that allows the first interface 135a and the second interface 135b to be connected. For details, please refer to... Figure 10 and Figure 11 When the locking element 138 is connected to the valve body 133, it can fix the baffle 137 to the valve body 133, preventing the baffle 137 from accidentally moving or changing position due to external environmental interference, ensuring its normal operation in a specific position. The presence of the locking element 138 enhances the stability of the baffle 137 within the three-way device 140. When it is necessary to change the position of the baffle 137, the user can release the connection between the locking element 138 and the valve body 133. By releasing the locking element 138, the baffle 137 can move freely, providing convenience and reliability in operation.

[0062] According to an embodiment of the present invention, the dry sweeper includes a body, a garbage bin 160, and a dust removal system 100 as described above. The dust removal system 100 is mounted on the body, and a dust removal device 110 is opposite to the garbage bin 160. The body is the main structural part of the dry sweeper and may include a chassis, an electrical system, a hydraulic system, etc. The dust removal system 100 is mounted on the body and has a dust removal mode and a self-cleaning mode. In the dust removal mode, the dust removal system 100 can effectively treat the dust generated during the sweeping process; in the self-cleaning mode, the blower of the dry sweeper's suction device 120 can be used as power, and the dust removal device 110 and the suction device 120 are connected through the self-cleaning device 170 to achieve cleaning and maintenance of the dry sweeper itself. The trash can 160 is used to collect and store larger trash and particulate matter sucked up by the dry sweeper from the suction port 121. The dust removal device 110 can be selectively connected to the inlet of the trash can 160. Dust and fine particles can enter the dust removal device 110 for filtration and collection. This layout can effectively distinguish and process different types of trash, making the sweeping process more efficient and convenient.

[0063] According to the dry sweeper of the present invention, by applying the aforementioned dust removal system 100, the sweeper itself can be used as a power source for cleaning and maintenance, which is more economical and convenient; the self-cleaning device 170 uses suction to clean and maintain the dust and garbage of the dust removal system 100 and the whole machine, resulting in low dust and less labor intensity.

[0064] The following describes some specific embodiments of the dry sweeper of the present invention with reference to the accompanying drawings.

[0065] The small dry sweeper mainly consists of a chassis, a dust removal system 100, an electrical system, a hydraulic system, a garbage bin 160, and a welded casing. The dust removal system 100 includes a dust removal device 110, a suction device 120, and a self-cleaning device 170. Its pneumatic conveying working principle is as follows: after pressing the one-button start, the dry sweeper begins to work. After the garbage is gathered by the sweeping mechanism, please refer to... Figure 2The rotation of the fan in the suction device 120 creates negative pressure at the suction port 121, drawing garbage through the main suction pipe 125. At this time, the baffle 137 and locking element 138 in the three-way device 140 are fixed in place, and the airflow channel between the second interface 135b and the first interface 135a is open, allowing airflow to enter the fan through the three-way device 140. The garbage in the airflow is broken up by the fan blades, with heavier garbage falling into the garbage bin 160. At this time, the valve 118 is open, allowing dust and debris to enter the dust removal system 100. After being filtered by the filter device 130 within the dust removal system 100, the gas is discharged from the filter outlet 113. Dust and debris accumulate within the dust removal system 100. When the filtration performance of the dust removal system 100 deteriorates, some airflow can enter the suction port 121 through the backflush pipe 126, reducing the load on the dust removal system 100. (Please refer to...) Figure 1 The dust removal system 100's filter device 130 can be cleaned by the vibration of the dust removal mechanism 150 combined with the self-cleaning suction pipe 122 of the self-cleaning device 170, so as to ensure the sweeper's suction effect.

[0066] Cleaning of filter device 130: Valve 118 is located at the air inlet of dust collector 110 and its function is to switch the airflow direction. Please refer to... Figure 6 Valve 118 can be composed of motor 151, bearing 152, and tilting plate 153; bearing 152 is fixed on both sides of dust removal device 110, and motor 151 is connected to one end of tilting plate 153. Motor 151 is fixed on the side of dust removal device 110, and motor 151 can drive tilting plate 153 to rotate around bearing when it is working; please refer to Figure 5 When the tilting plate 153 rotates to the closed position, the airflow from the fan into the trash can 160 is blocked, and the airflow can only exit from the self-cleaning outlet 116 on the side of the dust removal device 110. Please refer to... Figure 8 The self-cleaning device 170 may include a cleaning nozzle 123, an operating lever 124, a first connecting flange 154, a second connecting flange 155, a first clamp 156, a second clamp 157, a first suction tube 158, and a second suction tube 159. The first connecting flange 154 and the second suction tube 159 are connected and fixed together by the second clamp 157. One end of the first suction tube 158 is connected and fixed to the second connecting flange 155 by the first clamp 156, and the other end is connected and fixed to the operating lever 124 by the first clamp 156. The cleaning nozzle 123 is welded to the operating lever 124. The cleaning nozzle 123 in the self-cleaning device 170 is designed with an angled surface for easy garbage collection. The operating lever 124 is designed with an indexing pin for adjusting its length for convenient operation. Please refer to [link to relevant documentation]. Figure 3 and Figure 6The dust removal device 110 may include a dust collection box 117, a filter bag, a self-cleaning outlet 116, a cover plate 119, etc. The self-cleaning outlet 116 is located on the side of the dust collection box 117, and the cover plate 119 is installed on the self-cleaning outlet 116 by a Torx screw; the filter bag is installed inside the dust collection box 117.

[0067] After the operation is completed, press the one-button start button again to stop the dry sweeper. Start the motor 151 and rotate the tilting plate 153 to the closed position. Open the valve cover 136 of the three-way device 140, loosen the connection between the Torx screw and the threaded plate, and push the baffle 137 to move along the track, blocking the air duct of the main suction pipe 125. Airflow can only enter from the third interface 135c end. Figure 12 As shown. Remove the cover plate 119 of the dust removal device 110, connect the self-cleaning device 170, and connect the first connecting flange 154 and the second connecting flange 155 to the self-cleaning outlet 116 and the third interface 135c of the tee device 140 respectively, and fix them by hand-tightening the Torx screws; after assembly, as shown. Figure 1 As shown; start the fan, hold the operating lever 124 of the self-cleaning device 170, open the rear door of the dust collection box 117, and suck up the residual garbage on the filter bags after it has been cleaned by the dust removal mechanism 150. Figure 4 As shown; at the same time, the handheld control lever 124 can be used to vacuum and clean the remaining parts of the dry sweeper.

[0068] During the self-cleaning process of the self-cleaning device 170, the airflow direction is as follows: Figure 1 As shown, the garbage enters the first suction pipe 158 through the cleaning nozzle 123, passes through the three-way device 140 and the fan, and reaches the dust removal device 110. Most of the garbage flows out from the self-cleaning outlet 116 of the dust removal device 110, flows into the second suction pipe 159, and is finally discharged into the garbage bin 160 or a designated area. The garbage bin 160 can be removed from the dry sweeper. After cleaning is completed, the fan is turned off, the valve 118 is started, and the motor 151 opens the tilting plate 153. Figure 14 As shown, some of the residual garbage in the dust removal device 110 is poured into the garbage can 160.

[0069] For dust cleaning of the entire dry sweeper, follow... Figure 7 The second connecting flange 155 of the self-cleaning device 170 is connected to the self-cleaning outlet 116 of the dust removal device 110, and secured by hand-tightening the star bolts; the airflow direction is as shown. Figure 7 Air can enter from the suction port 121 or the third port 135c of the three-way device 140. At this time, the cleaning nozzle 123 of the self-cleaning device 170 can perform the blowing function, which can blow air to clean the areas that were not cleaned or were inconvenient to clean in the above process.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] The above descriptions are merely specific embodiments of this application. It is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. The scope of protection of this application is not limited thereto. Any equivalent structural transformations or substitutions made based on the content of this application's specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dust removal system (100), characterized in that, include: A dust removal device (110) having a separation chamber (111) and an air inlet (112), a filter outlet (113) and a self-cleaning opening (114) communicating with the separation chamber (111); A suction device (120) is provided, the outlet of which is connected to the air inlet (112); A self-cleaning device (170) is configured to cooperate with the self-cleaning opening (114) for self-cleaning of the dust removal device (110); The self-cleaning device (170) can selectively connect the dust removal device (110) and the suction device (120) to switch between the self-cleaning and dust removal modes of the dust removal system (100). The dust removal device (110) also has an air inlet chamber (115) and a self-cleaning outlet (116). The air inlet chamber (115) is connected to the air inlet (112) and the self-cleaning outlet (116) respectively. The self-cleaning outlet (116) is used to connect to the external space of the separation chamber (111). The dust removal device (110) includes: A dust collector (117) having the air inlet chamber (115) and the separation chamber (111) constructed therein; A valve (118) is connected to the dust collector (117) and configured to open and close the air inlet (115), and when the valve (118) closes the air inlet (115), the air inlet (112) and the self-cleaning outlet (116) are located on the same side of the valve (118); The self-cleaning outlet (116) is located on the dust collection box (117), and the dust collection device (110) also includes a cover plate (119) for opening and closing the self-cleaning outlet (116); The filter outlet (113) is located on the dust collection box (117), and the dust collection device (110) further includes a filter device (130) for filtering the airflow sent from the filter outlet (113); The self-cleaning opening (114) is provided on the dust collection box (117), and the dust collection device (110) also includes a door (131) for opening and closing the self-cleaning opening (114); The self-cleaning device (170) also includes: A self-cleaning straw (122) is provided, one end of which is detachably inserted through the self-cleaning opening (114) and connected to the separation chamber (111), and the other end of which is detachably connected to the inlet of the suction device (120).

2. The dust removal system (100) according to claim 1, characterized in that, The dust collection box (117) has a trash can interface (132), and the air inlet chamber (115) and the separation chamber (111) are both connected to the trash can interface (132).

3. The dust removal system (100) according to claim 1, characterized in that, The self-cleaning device (170) also includes: A cleaning nozzle (123) is connected to one end of the self-cleaning straw (122) and is adapted to penetrate the separation chamber (111) to clean the interior space of the separation chamber (111); An operating lever (124) is connected to the cleaning nozzle (123) or the self-cleaning suction tube (122) and is used to drive the cleaning nozzle (123). The length of the operating lever (124) is fixed or adjustable.

4. The dust removal system (100) according to claim 3, characterized in that, The suction port of the cleaning nozzle (123) is an inclined plane that is tilted relative to the axis of the cleaning nozzle (123).

5. The dust removal system (100) according to claim 1, characterized in that, The dust removal system (100) further includes a dust-removing mechanism (150) for cleaning the filter device (130) located at the filter outlet (113).

6. The dust removal system (100) according to claim 1, characterized in that, The dust removal system (100) further includes a three-way device (140), the three-way device (140) comprising: The valve body (133) has a first interface (135a), a second interface (135b) and a third interface (135c). The first interface (135a) is used to connect to the inlet of the suction device (120), the second interface (135b) is used to connect to the dust suction port (121), and the third interface (135c) is used to connect to the self-cleaning opening (114). A reversing assembly (134) is connected to the valve body (133) for selectively connecting the first interface (135a) to the second interface (135b) or the third interface (135c).

7. The dust removal system (100) according to claim 6, characterized in that, The commutation assembly (134) includes: A valve cover (136) that can be opened to seal the third interface (135c); A baffle (137) is movably disposed within the valve body (133) to connect or separate the first interface (135a) and the second interface (135b).

8. The dust removal system (100) according to claim 7, characterized in that, The first interface (135a) and the second interface (135b) are opposite each other, and the baffle (137) is configured to be movable along the opening direction of the third interface (135c).

9. The dust removal system (100) according to claim 7, characterized in that, The baffle (137) has a locking member (138) on the side facing the third interface (135c). The locking member (138) is releasably connected to the valve body (133) to lock the baffle (137) in a position that connects the first interface (135a) and the second interface (135b).

10. A dry sweeper, characterized in that, include: Organism; The dust removal system (100) according to any one of claims 1-9 is installed on the machine body; A trash can (160) is positioned opposite the dust removal device (110) of the dust removal system (100).

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