A large suction canister vacuum cleaner

Abstract

The application discloses a large-suction barrel type dust collector, which comprises a dust collecting barrel and a dust collecting pipe; a lifting ring is arranged in the dust collecting barrel, and a filter membrane assembly which can be rolled up and unfolded is arranged on the lifting ring; the filter membrane assembly comprises a winding shaft and a filter membrane which is wound on the winding shaft; the filter membrane is provided with a driving rod; a rotating plate which is connected with one end of the driving rod is rotatably arranged at the center of the lifting ring; and the rotating plate is connected with a driving motor; the filter membrane can be rolled up and unfolded; the filter membrane is rolled up during normal dust collection, so that dust can smoothly fall into the bottom of the dust collecting barrel; after back blowing and dust cleaning, the filter membrane is unfolded along the lifting ring by the rotating plate and the driving rod, covers the whole cross section of the dust collecting barrel, and is then pressed down by the lifting push rod together with the unfolded filter membrane, so that floating dust is forced to be compressed and adsorbed under the filter membrane, rapid forced settlement of the dust is realized, and the invalid waiting time after dust cleaning is greatly shortened or even eliminated.

Description

Technical Field

[0001] This invention relates to the field of vacuum cleaner technology, and in particular to a high-suction canister vacuum cleaner. Background Technology

[0002] Industrial vacuum cleaners, as common cleaning equipment, are widely used in workshops, factories, and other places. Their working principle typically involves a fan creating negative pressure within the dust collection bin, drawing in dust-laden air for filtration. The filtered clean air is then discharged, while dust is trapped on the filter surface or falls to the bottom of the bin. Over time, dust gradually clogs the filter surface and internal pores, leading to a decrease in suction power and filtration efficiency.

[0003] To address the problem of filter clogging, existing technologies have proposed vacuum cleaners with a reverse airflow cleaning function. For example, Chinese patent CN220898615U discloses an automatic dust-cleaning vacuum cleaner with a reverse airflow cleaning mechanism. This mechanism mainly involves creating a reverse airflow port on the cover above the dust collection bin, which connects to the inner cavity of the filter element via a flow pipe with a sealing component. When filter cleaning is required, a moving component drives the sealing component to block the normal dust collection outlet, allowing high-pressure airflow to flow backward through the reverse airflow port and the cleaning inlet into the filter element, blowing off the dust adhering to the filter element. This method achieves automatic dust removal of the filter element without disassembling it.

[0004] However, while the existing back-blowing cleaning method can effectively clean the filter element, it also brings new technical problems. When the high-pressure airflow blows back from the inside of the filter element to the outside, it sprays a large amount of dust into the dust collection bin instantly, causing a large amount of floating dust to be generated inside the dust collection bin. This floating dust is difficult to settle to the bottom of the dust collection bin naturally in a short time. If the vacuum cleaner is started immediately for normal vacuuming, the dust that is still in a floating state is easily re-adsorbed by the strong negative pressure airflow onto the surface of the freshly cleaned filter element, resulting in a significant reduction in the cleaning effect and even secondary blockage. This forces the vacuum cleaner to stop after back-blowing cleaning and wait for a long time for the dust to settle, which seriously affects the continuity of industrial production and cleaning efficiency. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a high-suction canister vacuum cleaner to solve the problem that floating dust settles slowly after backflushing and cleaning, affecting continuous operation.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-suction canister vacuum cleaner, comprising a dust collection bin and a suction pipe; The dust collection bin is equipped with a lifting ring, on which a filter membrane assembly that can be rolled up and unfolded is mounted; The filter membrane assembly includes a roller and a filter membrane wound on the roller. One end of the filter membrane is wound on the roller, and the other end is provided with a drive rod. The center of the lifting ring is provided with a rotating plate connected to one end of the drive rod. The rotating plate is connected to a drive motor. The lifting ring is located below the suction pipe, and the filter membrane is rolled up so that dust and impurities can fall into the dust collection bin when the suction pipe is in the suction state. After the filter membrane is spread out along the lifting ring by the drive rod, the floating dust in the dust collection bucket below is isolated, and then the floating dust is quickly settled by the descent of the lifting ring.

[0007] In the above scheme, preferably, the lifting ring includes a support sleeve located at the center and several support strips extending from the outer wall of the support sleeve toward the lifting ring, and the filter membrane assembly is located above any of the support strips.

[0008] In the above scheme, preferably, the rotating plate is provided with a rotating sleeve that cooperates with the support sleeve, the rotating sleeve passes through the support sleeve and is provided with a transmission gear, and the drive motor is provided with a drive gear that meshes with the transmission gear.

[0009] In the above scheme, preferably, the bottom of the dust collection bin is provided with a lifting push rod, one end of which is fixed to the bottom of the dust collection bin, and the push rod end is fixedly connected to the lifting ring.

[0010] In the above scheme, preferably, one end of the roller is rotatably mounted on the support sleeve, and the other end is rotatably mounted on the outer wall of the lifting ring; the outer edge of the lifting ring is provided with a guide groove, one end of the drive rod is connected to the rotating plate, and the other end is guided and slidably mounted in the guide groove.

[0011] In the above scheme, preferably, a spiral spring is provided between one or both ends of the reel and the lifting ring or support sleeve connected thereto.

[0012] In the above scheme, preferably, the dust collection bin is provided with an air inlet, and the suction pipe is connected to the air inlet through a flexible pipe. When the filter membrane is in the unfolded state, the airflow is blown into the lower part of the filter membrane through the suction pipe by the back-blowing of the filter. At the same time, a pressure difference is formed above the filter membrane due to the back-blowing of the gas, so that the filter membrane shakes through the pressure difference during the descent of the filter membrane.

[0013] In the above scheme, preferably, the lifting ring is provided with a dust suction hood that matches the axial position of the roll, and the dust suction hood is provided with a suction port that matches the air inlet, so that the dust on the membrane surface can be suctioned and removed through the normal dust suction state of the dust suction pipe when the filter membrane is rolled up.

[0014] In the above scheme, preferably, the filter membrane is a mesh porous membrane.

[0015] In the above scheme, preferably, the air inlet is equipped with an electrically controlled valve.

[0016] The beneficial effects of this invention are as follows: By setting a retractable filter membrane, the filter membrane is retracted during normal vacuuming, ensuring that dust falls smoothly into the bottom of the dust collection bin; after backflushing, the filter membrane is spread out along the lifting ring by the rotating plate and drive rod, covering the entire cross-section of the dust collection bin, and then the lifting ring and the spread filter membrane are pressed down by the lifting push rod, forcibly compressing and adsorbing the floating dust under the filter membrane, realizing rapid forced settling of dust, greatly shortening or even eliminating the ineffective waiting time after dust cleaning, and effectively ensuring the continuous and efficient operation of the vacuum cleaner. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a three-dimensional view of the structure of the filter membrane assembly and the lifting ring of the present invention.

[0021] Figure 5 This is a three-dimensional view of the structure of the filter membrane assembly and the rotating plate of the present invention.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating plate of the present invention. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: See also Figures 1-6 .

[0024] A high-suction canister vacuum cleaner includes a dust collection bin 1 and a suction pipe 2. A filter element for filtering dust-laden airflow is located at the upper part of the dust collection bin 1. The suction pipe 2 is located on the lower side wall of the filter element, and a power airflow inlet for suction and backflushing is located at the top. This is prior art as described in the background patent documents and will not be elaborated further here. An air inlet 104 is provided on the side wall. The suction pipe 2 is connected to a flexible tube, which connects to a vacuum hood to adsorb impurities on the ground. After the vacuum hood is disassembled and cleaned, the end of the flexible tube can be connected to the air inlet 104 to introduce the dust-laden airflow below the filter element into the dust collection bin 1.

[0025] A lifting ring 101 is provided inside the dust collection bin 1, and a filter membrane assembly 3 is provided on the lifting ring 101. The lifting ring 101 is located between the suction pipe 2 and the bottom of the dust collection bin 1, specifically in the area below the filter element and above the bottom of the dust collection bin 1. Figure 2 As shown.

[0026] The filter membrane assembly 3 includes a roller 301, a filter membrane 302, a drive rod 303, a rotating plate 304, and a drive motor 305. The roller 301 is rotatably mounted on the lifting ring 101 above the radially arranged support bar 32 via a bearing seat. The filter membrane 302 is a mesh porous membrane, which can be made of fiber material. The mesh size can be adjusted according to requirements. One end of the membrane is wound and fixed on the roller 301, and the other end is fixedly connected to the drive rod 303. The drive rod 303 is arranged radially and its extension line passes through the center of the lifting ring 101.

[0027] A support sleeve 31 is fixed at the center of the lifting ring 101. The outer wall of the support sleeve 31 is connected to the inner ring wall of the lifting ring 101 by several radially distributed support bars 32. The space between adjacent support bars 32 is formed for impurities and particles to pass through the suction pipe 2. A rotating sleeve 33 is provided at the center of the rotating plate 304. The rotating sleeve 33 is rotatably fitted inside the support sleeve 31. The lower end of the rotating sleeve 33 extends out of the support sleeve 31 and is fixed with a transmission gear 34. The drive motor 305 is installed on the lower end face of one support bar 32 of the lifting ring 101. A drive gear 35 that meshes with the transmission gear 34 is provided on its output shaft. A fixed arm extends from a position on the circumference of the rotating plate 304. The fixed arm is fixedly connected to one end of the drive rod 303 near the center of the lifting ring 101. The other end of the drive rod 303 is slidably disposed in the guide groove 103 opened inward from the outer edge of the lifting ring 101. Figure 4 As shown, a rolling bearing is provided at one end of the drive rod 303 located in the guide groove 103, and the guide groove 103 is preferably an annular groove extending in the circumferential direction.

[0028] One or both ends of the roller 301 may also be equipped with a spiral spring. The inner end of the spiral spring is fixed to the roller 301, and the outer end is fixed to the lifting ring 101 or the support sleeve 31. When the drive rod 303 drives the filter membrane 302 from the winding state to the unfolding state, the spiral spring is tightened and stores energy. When winding is required, the drive motor 305 reverses, or after the drive motor 305 is unlocked, the restoring force of the spiral spring drives the roller 301 to rotate automatically and rewind the filter membrane 302.

[0029] A lifting push rod 102, preferably an electric push rod or a cylinder, is fixedly installed at the bottom of the dust collection bin 1. The push rod end of the lifting push rod 102 extends upward and is connected to the fixed seat at the center of the lifting ring 101. Figure 2As shown. Through the extension and retraction of the lifting push rod 102, the lifting ring 101 can be driven to rise or fall vertically within the dust collection bin 1. Preferably, a sliding groove or guide rod can be provided on the outer wall of the lifting ring 101, and a guide block or guide hole that cooperates with the sliding groove or guide rod can be provided on the inner wall of the dust collection bin 1 to realize the vertical guiding sliding of the lifting ring 101.

[0030] To facilitate cleaning of the filter membrane 302 surface, a dust suction hood 105 is fixedly installed on the lifting ring 101 corresponding to the axial position of the roll 301. The dust suction hood 105 is elongated and covers the filter membrane 302 and the roll 301 in the winding state. A suction port 106 is opened on the dust collection bin 1 facing the wall of the dust collection bin 1. When the lifting ring 101 descends to the air inlet 104 position, the suction port 106 connects with the air inlet 104. Then, the negative pressure environment inside the dust collection bin 1 can be directly utilized to suction and remove dust from the surface of the filter membrane 302 during the winding process, thus keeping the filter membrane 302 clean. Preferably, when the roll 301 and the filter membrane 302 are in the winding state... Figure 4 As shown, the filter membrane 302 is in a counterclockwise winding state with the roller 301. Therefore, when the filter membrane 302 is being wound up, the side facing the bottom of the dust collection bin 1 is directly facing the opening of the dust collection hood 105 as it passes through the roller 301, thereby directly cleaning and sucking the working surface of the filter membrane 302.

[0031] The air inlet 104 is preferably equipped with an electrically controlled valve to control the on / off state of the air passage in different working modes.

[0032] The working process of this invention is as follows: Normal vacuuming state: The drive rod 303 is positioned near the roller 301, and most of the filter membrane 302 is wound onto the roller 301, with only a very small portion or none obstructing the internal cross-section of the dust collection bin 1. At this time, the dust-laden airflow drawn in by the suction pipe 2 is filtered within the dust collection bin 1, and the filtered dust and impurities smoothly pass through the lifting ring 101 under gravity and fall to the bottom of the dust collection bin 1, without affecting normal dust collection.

[0033] Forced settling state after reverse blowing cleaning: After the filter element completes reverse blowing cleaning, a large amount of floating dust fills the dust collection bin 1. At this time, the suction pipe 2 is connected to the air inlet 104 through the flexible pipe. At the same time, the electronic control valve is opened, and the drive motor 305 is started. Through the meshing of the drive gear 35 and the transmission gear 34, the rotating sleeve 33 and the rotating plate 304 are rotated. The rotating plate 304 drives the drive rod 303 to move circumferentially along the guide groove 103. The drive rod 303 pulls the filter membrane 302 out from the roller 301 and gradually spreads it out along the plane of the lifting ring 101 until the filter membrane 302 covers the entire cross-section of the dust collection bin 1, dividing the internal space of the dust collection bin 1 into upper and lower areas. The floating dust is isolated in the area below the filter membrane 302. Subsequently, the lifting push rod 102 is activated and retracts downward, causing the lifting ring 101 and the unfolded filter membrane 302 to move downward as a whole, forcibly compressing the volume of the space below the filter membrane 302, so that the floating dust is compressed and adsorbed on the lower surface of the filter membrane 302 and the bottom of the dust collection bucket 1 in a very short time, achieving rapid forced settling.

[0034] After settling, the lifting push rod 102 descends to its lowest position. At this point, the suction port 106 of the dust hood 105 is connected to the air inlet 104, initiating the vacuum cleaner's normal suction operation. The air inlet 104 connects to the suction pipe 2, enabling suction at the suction port 106. The drive motor 305 reverses direction, and the filter membrane 302, driven by the drive rod 303 and assisted by the spiral spring, is rewound onto the roller 301. During this rewinding process, the surface of the filter membrane 302 is cleaned by suction within the dust hood 105, preparing it for the next use. The vacuum cleaner can then immediately begin normal vacuuming operations without prolonged downtime.

[0035] In addition, when the filter membrane 302 is in the unfolded state, pulse backflushing can be performed on the filter element to allow some airflow to be blown into the area below the filter membrane 302 through the air inlet 104. At the same time, the filter element area above the filter membrane 302 forms an instantaneous positive pressure due to the backflushing, creating a pressure difference between the upper and lower sides of the filter membrane 302. Combined with the descent action of the lifting ring 101, the filter membrane 302 produces rhythmic shaking, further shaking off the dust adhering to the membrane surface, improving the settling efficiency and preventing membrane pore blockage.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-suction canister vacuum cleaner, characterized in that: Includes a dust collection bin (1) and a suction pipe (2); The dust collection bin (1) is provided with a lifting ring (101), and the lifting ring (101) is provided with a retractable and deployable filter membrane assembly (3). The filter membrane assembly (3) includes a roller (301) and a filter membrane (302) wound on the roller (301). One end of the filter membrane (302) is wound on the roller (301), and the other end is provided with a drive rod (303). The center of the lifting ring (101) is provided with a rotating plate (304) connected to one end of the drive rod (303). The rotating plate (304) is connected to the drive motor (305). The lifting ring (101) is located below the suction pipe (2). The filter membrane (302) is rolled up so that when the suction pipe (2) is in the suction state, dust and impurities can fall into the dust collection bin (1). After the filter membrane (302) is spread out along the lifting ring (101) by the drive rod (303) so that the floating dust in the dust collection bucket (1) below it is isolated, the floating dust is quickly settled by the descent of the lifting ring (101).

2. The high-suction canister vacuum cleaner according to claim 1, characterized in that: The lifting ring (101) includes a support sleeve (31) located at the center and several support strips (32) extending from the outer wall of the support sleeve (31) toward the lifting ring (101), and the filter membrane assembly (3) is located above any of the support strips (32).

3. A high-suction canister vacuum cleaner according to claim 2, characterized in that: The rotating plate (304) is provided with a rotating sleeve (33) that cooperates with the support sleeve (31). The rotating sleeve (33) passes through the support sleeve (31) and is provided with a transmission gear (34). The drive motor (305) is provided with a drive gear (35) that meshes with the transmission gear (34).

4. A high-suction canister vacuum cleaner according to claim 1, characterized in that: The bottom of the dust collection bin (1) is provided with a lifting push rod (102). One end of the lifting push rod (102) is fixed to the bottom of the dust collection bin (1), and the end of the push rod is fixedly connected to the lifting ring (101).

5. A high-suction canister vacuum cleaner according to claim 2, characterized in that: One end of the spool (301) is rotatably mounted on the support sleeve (31), and the other end is rotatably mounted on the outer wall of the lifting ring (101); the outer edge of the lifting ring (101) is provided with a guide groove (103), one end of the drive rod (303) is connected to the rotating plate (304), and the other end is guided and slidably mounted in the guide groove (103).

6. A high-suction canister vacuum cleaner according to claim 2, characterized in that: A spiral spring is provided between one or both ends of the spool (301) and the lifting ring (101) or support sleeve (31) connected thereto.

7. A high-suction canister vacuum cleaner according to claim 1, characterized in that: The dust collection bin (1) is provided with an air inlet (104). The suction pipe (2) is connected to the air inlet (104) through a flexible pipe. When the filter membrane (302) is in the unfolded state, the airflow is blown into the filter membrane (302) through the suction pipe (2) by back-blowing the filter. At the same time, a pressure difference is formed above the filter membrane (302) due to the back-blowing of the gas. Thus, the filter membrane (302) shakes during the descent of the filter membrane (302) through the pressure difference.

8. A high-suction canister vacuum cleaner according to claim 7, characterized in that: The lifting ring (101) is provided with a dust suction hood (105) that matches the axial position of the roller (301). The dust suction hood (105) is provided with a suction port (106) that matches the air inlet (104), so that when the filter membrane (302) is wound up, the dust on the membrane surface can be suctioned and removed through the normal dust suction state of the dust suction pipe (2).

9. A high-suction canister vacuum cleaner according to claim 1, characterized in that: The filter membrane (302) is a mesh porous membrane.

10. A high-suction canister vacuum cleaner according to claim 1, characterized in that: An electrically controlled valve is provided on the air inlet (104).

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