Primary self-cleaning device

Abstract

The utility model relates to the field of cleaning and dust removal, in particular to a primary self-cleaning device which comprises a fixing frame body, a dust collection raking assembly, a transmission module, a central dust collection header pipe and a dust removal module. The dust collection raking assembly comprises a plurality of dust collection rakes; a plurality of dust outlets are formed in the bottom of the dust collection rake; the dust removal module is provided with a dust collection motor; the dust collection rake is arranged on the transmission module; a dust outlet short pipe communicated with the dust removal module is arranged on a back plate of the dust collection rake; the transmission module is fixedly mounted on the frame body; in the cleaning mode, dust attached to the primary filter screen enters the central dust collection header pipe through the dust outlets of the dust collection scrabbles and then enters the dust removal module. According to the device, full-automatic dead-corner-free cleaning of the primary filter is achieved, limitation of traditional plane cleaning is broken through, the dust collecting effect is enhanced, the self-cleaning efficiency is improved, and therefore the requirement for manual maintenance is reduced, and the effect of continuously and stably cleaning air of a ventilation system is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning and dust removal, specifically to a primary self-cleaning device. Background Technology

[0002] In ventilation systems of public places, the primary and secondary filters and electrostatic precipitator filters in the air purification process face serious dust accumulation problems after prolonged operation. Over time, a large amount of dust accumulates on the dust collection surfaces of these filters, and this dust is difficult to clean effectively using conventional methods. This severely impacts the efficiency of the entire ventilation system, reducing ventilation efficiency while increasing energy consumption. More worryingly, the decreased dust removal effectiveness may also lead to air quality deterioration and the risk of secondary pollution.

[0003] Furthermore, traditional manual cleaning methods are not only labor-intensive and time-consuming, but also costly and demanding. In some projects, the filter design does not even allow for effective cleaning and maintenance, or the filter is easily damaged during cleaning. This not only increases the difficulty of maintenance but also seriously affects the normal operation and lifespan of the ventilation system.

[0004] The existence of these problems highlights the significant challenges faced by ventilation systems in public places in their maintenance and operation, and urgently requires more efficient, economical, and environmentally friendly solutions. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a primary self-cleaning device, comprising a fixed frame, a vacuum cleaner assembly, a transmission module, a central dust collection manifold, and a dust removal module.

[0006] The vacuum cleaner assembly includes several vacuum cleaners;

[0007] The bottom of the vacuum cleaner is provided with several dust outlets;

[0008] The dust removal module is equipped with a dust collection motor;

[0009] The vacuum cleaner brush is mounted on the transmission module;

[0010] The back panel of the vacuum cleaner is provided with a short dust outlet pipe that connects to the central dust collection manifold (4);

[0011] The transmission module is fixedly installed on the frame;

[0012] In cleaning mode, dust adhering to the pre-filter enters the dust removal module through the dust outlet of the vacuum cleaner.

[0013] Dust adhering to the primary filter is swept off by a vacuum cleaner and then sucked in by the dust removal module, thus achieving automatic dust removal.

[0014] In some embodiments, the vacuum cleaner brush is provided with a first dust-sweeping brush, a second dust-sweeping brush, an upper dust-sweeping brush, and a lower dust-sweeping brush;

[0015] The first dust-sweeping brush and the second dust-sweeping brush are respectively arranged on the left and right sides of the vacuum cleaner.

[0016] The upper and lower dust-sweeping brushes are respectively installed on the upper and lower sides of the vacuum cleaner.

[0017] The first dust-sweeping brush, the second dust-sweeping brush, the upper dust-sweeping brush, and the lower dust-sweeping brush together form a semi-enclosed cleaning space, which is a dust collection chamber.

[0018] When the dust brush sweeps across the primary filter, the dust and dirt swept off will fall into the dust collection chamber due to the dust collection chamber, preventing them from being swept directly to the ground. This allows the dust removal module to suck up the dust and dirt in time, thereby achieving a cleaning effect.

[0019] Preferably, the dust collection trough of the dust collector adopts a variable cross-section structure that is "smaller at the top and larger at the bottom" or "smaller at both ends and larger in the middle." The interface of the central dust collection manifold is located in the area with the largest cross-sectional area of ​​the dust collection trough. This design is based on fluid mechanics principles. By increasing the cross-sectional area in the middle of the dust collection trough, the local resistance when the airflow passes through is reduced, so that the suction force forms a negative pressure concentration effect in the central area where dust accumulates, thereby improving the dust collection efficiency. At the same time, the structure of narrowing at both ends of the dust collection trough can guide the airflow to converge towards the center and avoid the dispersion of suction force.

[0020] In some embodiments, the vacuum cleaner brush further includes a first spring assembly;

[0021] The first spring assembly is disposed at the root of the first and second dust-sweeping brushes, and the dust-sweeping brushes extend and retract through the first spring assembly.

[0022] It is precisely because of the elasticity of the spring that the first and second dust-sweeping brushes can adapt to the irregularities of various filter screen surfaces (flat, W-shaped, or wavy), ensuring that the dust-sweeping brushes can form a tight fit with various filter screen surfaces, achieving thorough dust removal, while also preventing the dust mist from flying out of the vacuum cleaner, reducing the air leakage rate, and further improving the cleaning quality of the primary filter screen.

[0023] In some embodiments, the vacuum cleaner squeegee further includes a dust collection tank;

[0024] In this process, the first dust sweeping brush and the second dust sweeping brush are respectively provided with a first spring assembly at their root and then placed into the dust collection groove. The first dust sweeping brush and the second dust sweeping brush swing left and right in the dust collection groove.

[0025] By incorporating a left-right oscillating structure, the dust-sweeping brush can make wider contact with the surface to be cleaned, increasing the contact area. Especially for surfaces with uneven or irregular shapes, the oscillation ensures that the dust-sweeping brush can elastically extend and retract along the grooves and protrusions of the wave-shaped filter at an oscillation angle of 25-55 degrees, reducing cleaning dead corners. The synergistic effect of this spring assembly, adapted to the W-shaped structure, such as the "W-shaped wave-shaped" filter dust collection structure, makes better contact with the surface to be cleaned, effectively removing dust and dirt attached to the primary filter.

[0026] In some embodiments, a second spring assembly is also provided in the dust collection tank for the dust sweeping brush to automatically rebound after swinging left and right.

[0027] The second spring assembly enables the dust-sweeping brush to automatically rebound after swinging left and right, eliminating the need for manual adjustment of the brush position, reducing cleaning dead spots caused by changes in the brush angle, and improving cleaning efficiency.

[0028] In some embodiments, the first and second dust-sweeping brushes swing within the dust-collecting trough at an angle ranging from 25 degrees to 55 degrees.

[0029] In some embodiments, the dust removal module is equipped with a suction pipe, and the central dust collection manifold is fixedly connected to the suction pipe. Dust enters the dust removal module after passing through the central dust collection manifold.

[0030] In some embodiments, the transmission module further includes a belt assembly and a transmission connecting plate;

[0031] The transmission connecting plate is perpendicular to the belt assembly, and the transmission connecting plate is fixedly mounted on the belt assembly and can move horizontally left and right with the belt assembly.

[0032] The transmission module enables the vacuum cleaner to move back and forth for cleaning, thus improving the cleaning effect.

[0033] In some embodiments, the central dust collection manifold is provided with several dust suction hooks;

[0034] The central dust collection main pipe is also provided with several dust removal connection ports, and the dust outlet short pipe is connected to the dust removal connection ports.

[0035] The central dust collection manifold is fixedly mounted on the transmission connection plate;

[0036] The vacuum cleaner clips fix the vacuum cleaner to the central dust collection pipe, and the number of vacuum cleaner clips is set according to the number of vacuum cleaners set;

[0037] Since the size of the pre-filter is different, the number of vacuum squeegees can be increased or decreased as needed. By changing the length of the central dust collection pipe and matching the installation of the vacuum squeegees, the area covered by the pre-filter can be effectively cleaned.

[0038] The central dust collection manifold is a hollow pipe. When the equipment is in operation, the dust sucked in by multiple dust suction hoods is collected in the central dust collection manifold before entering the dust removal module.

[0039] In some implementations, the dust removal module also includes a control screen for local control of the device's start and stop.

[0040] Beneficial effects

[0041] This invention is applicable to flat, corrugated, and plate filters, and can improve the initial self-cleaning capability of air conditioning units. The adaptive dust-collecting brush assembly structure uses four brushes with spring-loaded components to relatively enclose the dust-collecting space within the dust collection chamber. The spring components allow the brushes to adapt to the surface shape of flat, corrugated, and plate filters, preventing dust from escaping from the dust collection chamber. Simultaneously, the dust-collecting groove connecting to the dust collection chamber adopts a variable cross-section structure, either "smaller at the top and larger at the bottom" or "smaller at both ends and larger in the middle." The interface of the central dust collection manifold is located in the area with the largest cross-sectional area of ​​the dust-collecting groove, creating negative pressure in the central area where dust accumulates, improving dust removal efficiency after self-cleaning. Furthermore, depending on the application environment, the height of the central dust collection manifold can be adjusted, and the number of dust-collecting brushes can be increased to accommodate different filter sizes, ensuring true flexibility. Attached Figure Description

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] Figure 1 This is a schematic diagram of the structure of this utility model;

[0044] Figure 2 This is a schematic diagram of the vacuum cleaner squeegee structure of this utility model;

[0045] Figure 3 This is an exploded view of the vacuum cleaner structure of this utility model. Figure 1 ;

[0046] Figure 4 Explosion diagram of the vacuum cleaner squeegee structure of this utility model Figure 2 ;

[0047] Figure 5 This is a partial structural diagram of the present invention. Figure 1 ;

[0048] Figure 6 This is a partial structural diagram of the present invention. Figure 2 ;

[0049] Figure 7 This is a schematic diagram of the dust removal module structure of this utility model.

[0050] Figure label:

[0051] 1. Fixed frame; 2. Dust suction brush assembly; 210. Dust suction brush; 211. Dust outlet; 212. Dust outlet short pipe; 221. First dust sweeping brush; 222. Second dust sweeping brush; 223. Upper dust sweeping brush; 224. Lower dust sweeping brush; 230. Dust collection chamber; 241. First spring assembly; 242. Second spring assembly; 250. Dust collection trough; 3. Transmission module; 310. Belt assembly; 320. Transmission connecting plate; 4. Central dust collection main pipe; 410. Dust suction brush buckle; 420. Dust removal connection port; 5. Dust removal module; 510. Suction pipe; 520. Suction motor; 530. Control panel. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0053] In the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0054] In the description of this utility model, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0055] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0056] like Figures 1-7The primary self-cleaning device shown includes a fixed frame 1, a dust suction assembly 2, a transmission module 3, a central dust collection pipe 4, and a dust removal module 5.

[0057] The vacuum cleaner assembly 2 includes a plurality of vacuum cleaners 210;

[0058] The bottom of the vacuum cleaner 210 is provided with several dust outlets 211;

[0059] Preferably, the number of dust outlets 211 is 1;

[0060] The dust removal module 5 is equipped with a dust suction motor 520; a dust suction squeegee 210 is mounted on the transmission module 3; the back plate of the dust suction squeegee 210 is equipped with a dust outlet short pipe 212 that connects to the dust removal module 5; the transmission module 3 is fixedly mounted on the frame 1 and is mounted on the windward side of the filter screen.

[0061] In cleaning mode, dust adhering to the primary filter enters the dust removal module 5 through the dust outlet 211 of the vacuum cleaner 210.

[0062] like Figures 2-4 As shown, in some embodiments, the vacuum cleaner 210 is provided with a first dust-sweeping brush 221, a second dust-sweeping brush 222, an upper dust-sweeping brush 223, and a lower dust-sweeping brush 224; the first dust-sweeping brush 221 and the second dust-sweeping brush 222 are respectively arranged on the left and right sides of the vacuum cleaner 210; the upper dust-sweeping brush 223 and the lower dust-sweeping brush 224 are respectively arranged on the upper and lower sides of the vacuum cleaner 210; the first dust-sweeping brush 221, the second dust-sweeping brush 222, the upper dust-sweeping brush 223, and the lower dust-sweeping brush 224 together form a semi-enclosed vertical semi-circular arc-shaped cleaning space, which is the dust collection chamber 230.

[0063] In some embodiments, the vacuum cleaner brush 210 further includes a first spring assembly 241; the first spring assembly 241 is disposed at the root of the first dust-sweeping brush 221 and the second dust-sweeping brush 222, and the dust-sweeping brushes extend and retract through the first spring assembly 241.

[0064] Because the vacuum cleaner brush 210 is equipped with an elastic device, it can automatically adjust according to the different unevenness of the filter screen surface, which improves the fit between the vacuum cleaner brush 210 and the filter screen surface and ensures that the gap between the vacuum cleaner brush and the filter screen remains tight, thereby improving the vacuuming efficiency and cleaning effect. At the same time, the length of the dust brush can be replaced and adjusted as needed.

[0065] In some embodiments, the vacuum cleaner 210 further includes a dust collection groove 250; the first dust brush 221 and the second dust brush 222 are respectively provided with a first spring assembly 241 at their roots and then placed in the dust collection groove 250, and the first dust brush 221 and the second dust brush 222 swing left and right in the dust collection groove 250.

[0066] In some embodiments, a second spring assembly 242 is also provided in the dust collection trough 250 for the dust sweeping brush to automatically rebound after swinging left and right.

[0067] In some embodiments, the first dust-sweeping brush 221 and the second dust-sweeping brush 222 swing within the dust collection trough 250 at an angle ranging from 25 degrees to 55 degrees.

[0068] Optionally, the lower dust brush 224 can be longer than the upper dust brush 223, thereby better preventing dust falling into the dust collection chamber 230 from overflowing and improving the dust collection effect. Preferably, the swing angle is 40 degrees, which can ensure that the dust brush can form a tight fit with the filter screen surface.

[0069] In some embodiments, the dust removal module 5 further includes a suction pipe 510; the central dust collection manifold 4 is fixedly connected to the suction pipe 510, and dust enters the dust removal module 5 after passing through the central dust collection manifold 4 and the suction pipe 510.

[0070] In some embodiments, the transmission module 3 further includes a belt assembly 310 and a transmission connecting plate 320; the transmission connecting plate 320 is perpendicular to the belt assembly 310 and is fixedly mounted on the belt assembly 310 and can move horizontally left and right with the belt assembly 310.

[0071] Preferably, limiters are provided at both ends of the transmission connecting plate 320 to facilitate control of the dust removal range.

[0072] In some embodiments, the central dust collection manifold 4 is provided with a plurality of dust suction hooks 410; the central dust collection manifold 4 is also provided with a plurality of dust removal connection ports 420, the dust outlet short pipe 212 is connected to the dust removal connection port 420, and the central dust collection manifold 4 is fixedly mounted on the transmission connection plate 320; the dust suction hooks 410 fix the dust suction hooks 210 to the central dust collection manifold 4, and a corresponding number of dust suction hooks 410 are provided according to the number of dust suction hooks 210 provided;

[0073] When the vacuum cleaner brush 210 is damaged or malfunctions, it is not necessary to replace the entire cleaning component; only the damaged or malfunctioning individual vacuum cleaner brush 210 needs to be disassembled and replaced.

[0074] Meanwhile, the central dust collection manifold 4 connects multiple suction nozzles 210 together and connects them to the dust removal module 5, enabling centralized and unified management.

[0075] In cleaning mode, the dust attached to the primary filter is swept away by the dust brush of the dust scraper assembly 2, collected in the dust collection chamber 230, and then enters the suction pipe 510 of the dust removal module 5 through the dust outlet 211, the dust outlet short pipe 212, and the central dust collection main pipe 4 of the dust scraper assembly 2 in sequence, and is finally sucked into the dust removal module 5 by the dust removal motor 520.

[0076] In some embodiments, the dust removal module 5 also includes a control panel 530 for locally controlling the start and stop of the device;

[0077] Optionally, the transmission module 3 and the dust removal module 5 can also be connected to a control cabinet; the control cabinet controls the opening or closing of the transmission module 3 and the dust removal module 5.

[0078] Typically, the size of the ventilation cross section determines the size of the primary filter. Based on cleaning needs, the area of ​​the primary filter can be divided into M (rows) * N (columns) to create a cleaning map. The number of vacuum cleaner squeegees 210 corresponds to the number of rows, and each vacuum cleaner squeegee 210 corresponds to one filter cross section, which is M in total. These are arranged from top to bottom on the central dust collection pipe 4. Driven by the transmission module 3, the cleaning area can cover the entire primary filter.

[0079] The dust removal module 5 uses a high-pressure turbine fan with a working voltage of 220V and a dust removal power of 1-3KW. The dust removal pressure is 10-13KP. The outer casing of the dust removal module 5 can also be equipped with a sealing strip to improve the sealing effect, and universal wheels can be installed to achieve the effect of mobility.

[0080] In addition to remotely controlling the start and stop of the entire equipment, the control cabinet can also be equipped with detection sensors on the vacuum cleaner 210. These sensors can be connected to the control cabinet via passive dry contact switch signal feedback mode to realize operation status, fault alarm, cleaning and maintenance alarm, and manual / automatic feedback. Alternatively, fault and cleaning alarms can be fed back via RS485 and CAN interfaces using digital signals, further improving the automation effect of cleaning.

[0081] The control system inside the control cabinet has safety switches, fault alarms, and timed cleaning functions. It is also equipped with an RS485 communication interface, which can be used to add air quality sensing and monitoring functions (such as PM2.5, differential pressure, etc.) according to customer requirements, and display the current operating status of the equipment and the air quality status in real time.

[0082] This device can be applied to ventilation systems in public places such as combined cabinet units, civil engineering air ducts, and fresh air cabinets.

[0083] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A primary self-cleaning device, comprising a fixed frame (1), a dust suction assembly (2), a transmission module (3), a central dust collection manifold (4), and a dust removal module (5), characterized in that, The vacuum cleaner assembly (2) includes a plurality of vacuum cleaners (210). The bottom of the vacuum cleaner (210) is provided with several dust outlets (211). The dust removal module (5) is equipped with a dust collection motor (520); A vacuum cleaner squeegee (210) is mounted on the transmission module (3); The back plate of the vacuum cleaner (210) is provided with a dust outlet short pipe (212) that connects to the central dust collection manifold (4). The transmission module (3) is fixedly installed on the frame (1); In cleaning mode, dust attached to the primary filter enters the dust removal module (5) through the dust outlet (211) of the dust suction squeegee (210).

2. The primary self-cleaning device according to claim 1, characterized in that, The vacuum cleaner (210) is equipped with a first dust-sweeping brush (221), a second dust-sweeping brush (222), an upper dust-sweeping brush (223), and a lower dust-sweeping brush (224). The first dust brush (221) and the second dust brush (222) are respectively arranged on the left and right sides of the vacuum cleaner (210); The upper dust brush (223) and the lower dust brush (224) are respectively arranged on the upper and lower sides of the vacuum cleaner (210); The first dust-sweeping brush (221), the second dust-sweeping brush (222), the upper dust-sweeping brush (223), and the lower dust-sweeping brush (224) together form a semi-enclosed cleaning space, which is the dust collection chamber (230).

3. The primary self-cleaning device according to claim 2, characterized in that, The vacuum cleaner (210) also includes a first spring assembly (241); The first spring assembly (241) is located at the root of the first dust sweeping brush (221) and the second dust sweeping brush (222). The dust sweeping brush is extended and retracted through the first spring assembly (241) so that the brush is in close contact with the surface of the filter screen to reduce air leakage.

4. The primary self-cleaning device according to claim 3, characterized in that, The vacuum cleaner (210) also includes a dust collection tank (250); After the first dust sweeping brush (221) and the second dust sweeping brush (222) are respectively provided with the first spring assembly (241) at the root, they are then placed in the dust collection groove (250). The first dust sweeping brush (221) and the second dust sweeping brush (222) swing left and right in the dust collection groove (250), so that the brush can elastically extend and retract along the groove and protrusion of the filter screen, and the swing angle is adapted to the W-shaped structure. The dust collection trough (250) adopts a variable cross-section structure with a smaller top and larger bottom or a smaller end and larger middle. The interface of the central dust collection main pipe (4) is located in the area with the largest area of ​​the dust collection trough (250).

5. A primary self-cleaning device according to claim 4, characterized in that, The dust collection trough (250) is also equipped with a second spring assembly (242) for the dust sweeping brush to automatically rebound after swinging left and right.

6. The primary self-cleaning device according to claim 5, characterized in that, The first dust brush (221) and the second dust brush (222) swing within the dust collection tank (250) at an angle ranging from 25 degrees to 55 degrees.

7. A primary self-cleaning device according to claim 6, characterized in that, The dust removal module (5) is equipped with a suction pipe (510), and the central dust collection pipe (4) is fixedly connected to the suction pipe (510). Dust enters the dust removal module (5) after passing through the central dust collection pipe (4).

8. A primary self-cleaning device according to any one of claims 1-7, characterized in that, The transmission module (3) also includes a belt assembly (310) and a transmission connecting plate (320). The transmission connecting plate (320) is perpendicular to the belt assembly (310), and the transmission connecting plate (320) is fixedly mounted on the belt assembly (310) and can move horizontally left and right with the belt assembly (310).

9. A primary self-cleaning device according to claim 8, characterized in that, The central dust collection manifold (4) is equipped with several dust suction hooks (410); The central dust collection main pipe (4) is also provided with several dust removal connection ports (420), and the dust discharge short pipe (212) is connected to the dust removal connection ports (420). The central dust collection manifold (4) is fixedly mounted on the transmission connecting plate (320); The vacuum cleaner clip (410) fixes the vacuum cleaner (210) to the central dust collection pipe (4), and sets a corresponding number of vacuum cleaner clips (410) according to the number of vacuum cleaners (210).

10. A primary self-cleaning device according to claim 9, characterized in that, The dust removal module (5) also includes a control panel (530) for local control of the start and stop of the device.

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