Gas-liquid separator and cleaning equipment

Abstract

The present invention discloses a gas-liquid separator, comprising a housing with a first cavity formed therein; a dust canister assembly, comprising a dust canister disposed in the first cavity, with a second cavity formed therein; and a transfer channel for connecting the first cavity and the second cavity; an air inlet channel and an air outlet channel are constructed on the housing; in a working state, a fluid enters the first cavity through the air inlet channel for gas-liquid separation, the fluid after gas-liquid separation enters the dust canister assembly through the transfer channel for dust-gas separation, the fluid after dust-gas separation flows to the air outlet channel and is discharged from the gas-liquid separator; wherein, at least part of the fluid undergoing gas-liquid separation needs to bypass the outer wall of the dust canister before entering the transfer channel. Based on the above arrangement, the sucked fluid can obtain a better separation effect, resulting in a clean and dry airflow discharged from the gas-liquid separation device.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-liquid separation, and in particular to a gas-liquid separator and cleaning equipment. Background Art

[0002] With technological advancements, researchers have designed multifunctional wet / dry vacuum cleaners, suitable for a variety of applications, including dry vacuuming and wastewater recovery, and widely popular with users. However, existing technologies often suffer from a low gas-water separation rate in the gas-liquid separators of multifunctional vacuum cleaners, resulting in residual moisture in the fluid discharged from the separators. This can lead to contamination of components in the rear of the air duct with wastewater, even leading to motor short circuits and other adverse consequences. Therefore, improvements to existing gas-liquid separators are necessary to address these issues. Summary of the Invention

[0003] In view of the shortcomings of the above technologies, the present invention provides a gas-liquid separator, which effectively solves the problem of low water-gas separation rate.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A gas-liquid separator, characterized in that it comprises: an outer shell, comprising a lower shell and an upper shell, a first cavity being formed inside the outer shell; a dust canister assembly, comprising a dust canister arranged in the first cavity, a second cavity being formed inside the dust canister; and a transfer channel for connecting the first cavity and the second cavity; an air inlet channel and an air outlet channel are constructed on the outer shell; in a working state, the fluid enters the first cavity through the air inlet channel for gas-liquid separation, and the fluid after gas-liquid separation enters the dust canister assembly through the transfer channel for dust-gas separation, and the fluid after dust-gas separation flows to the air outlet channel and is discharged from the gas-liquid separator; wherein, at least part of the fluid undergoing gas-liquid separation needs to bypass the outer wall of the dust canister before entering the transfer channel.

[0006] Preferably, the inlet end of the transfer channel and the dust cylinder assembly are basically arranged along the length direction of the gas-liquid separator, and the outlet end of the air inlet channel is arranged in a direction away from the inlet end of the transfer channel.

[0007] Preferably, it is characterized in that the dust cup assembly is basically arranged on the left side of the inlet end of the transfer channel, and the outlet end of the air inlet channel is located at the rear side of the dust cup assembly and is basically arranged toward the left side.

[0008] Preferably, the upper shell can be opened relative to the lower shell; a quick-release assembly is arranged between the lower shell and the upper shell.

[0009] Preferably, the transfer channel and the air outlet channel are arranged on the upper shell, and the air inlet channel, the first cavity and the second cavity are arranged on the lower shell.

[0010] Preferably, a baffle is provided in the first cavity, and the baffle is arranged at the lower part of the inlet end of the transfer channel.

[0011] Preferably, the baffle has a first end close to the dust cup assembly and a second end away from the dust cup assembly, and the second end is configured to be higher than the first end.

[0012] Preferably, the inlet end of the transfer channel has an air outlet cross section, and the ratio of the maximum length to the maximum width of the air outlet cross section is not greater than 5.

[0013] Preferably, the gas-liquid separator provides suction through a motor, and the motor has a motor air inlet; the cross-sectional area of the air outlet at the inlet end of the transfer channel is 1.5-2 times the area of the motor air inlet.

[0014] Preferably, there is a first distance between the inlet end of the transfer channel and the baffle, and the first distance is 12-20 mm.

[0015] Preferably, a max line is provided on the housing, the max line has a second distance from the second end, a third distance from the bottom of the first cavity, and a fourth distance from the first end to the bottom of the first cavity.

[0016] Preferably, the first spacing is 1 / 3-1 / 2 times the second spacing.

[0017] Preferably, the fourth spacing is more than twice the third spacing.

[0018] Preferably, there is a fifth distance between the first end and the inlet end of the transfer channel in the horizontal direction, and the fifth distance is not less than 50 mm.

[0019] Preferably, the baffle is fixed on the upper shell or in the lower shell.

[0020] Preferably, the baffle is fixed in the lower shell, and extension plates are provided at the junctions between the first end and both sides of the inner wall of the lower shell.

[0021] Preferably, the dust cup assembly further comprises a dust and gas separation component provided in the dust cup; the dust and gas separation component is detachably inserted into the upper shell.

[0022] Preferably, the dust and gas separator includes a cyclone cone and a filter element arranged at the outlet end of the cyclone cone; the cyclone cone includes an outer cylinder and an inner cylinder arranged in the outer cylinder, and a plurality of dust and gas channels are arranged between the outer cylinder and the inner cylinder.

[0023] Preferably, the dust and gas passage is arranged in a spiral shape and tilted downward.

[0024] Preferably, an inverted cone is provided on the inner cylinder; a plurality of through holes communicating with the inner cylinder are provided on the inverted cone; and the filter is provided in the inner cylinder and at the upper portion of the inverted cone.

[0025] Preferably, a skirt is extended along the circumference of the lower portion of the inner cylinder, and the skirt at least partially covers the inverted cone in the vertical direction.

[0026] Preferably, the longitudinal section of the lower end portion of the skirt is configured to be pointed.

[0027] Preferably, a support column is fixed to the lower part of the cyclone cone; an abutment column is provided in the dust cylinder to support the support column; and at least one of the support column and the abutment column is in the shape of a sleeve.

[0028] Preferably, the filter element includes a first ring body for supporting and connecting in the inner cylinder, a cylindrical filter screen fixed on the first ring body, and a partition plate fixed inside the cylindrical filter screen.

[0029] Preferably, the outer edge of the partition is connected to the inner side of the cylindrical filter screen, or extends to the outer side of the cylindrical filter screen.

[0030] Preferably, the partition is configured to be in the shape of a flat plate, a plate with a depression in the middle, or a plate with a convexity in the middle.

[0031] Preferably, a plurality of reinforcing ribs are provided on the first ring body, and at least one of the cylindrical filter screen and the partition is connected to the reinforcing ribs.

[0032] Preferably, a first ring is provided at the lower portion of the reinforcing rib for supporting and connecting the lower end of the cylindrical filter screen.

[0033] Preferably, a plurality of limiting grooves are provided on the inner cylinder or the inverted cone cylinder, and a limiting block that can be matched and plugged into the limiting grooves is provided on the first ring body.

[0034] Preferably, the limit block includes a first limit block that can abut against one end of the limit groove and a second limit block that can abut against the other end of the limit groove; wherein a gap is provided between the first limit block and the second limit block; a notch is provided on the limit groove, and the notch and the gap are connected.

[0035] Preferably, a support is fixed to the lower part of the cyclone cone, and the support is fixed to the inverted cone through a connecting rib; the notch corresponds to the position of the connecting rib.

[0036] A cleaning device comprises the gas-liquid separator as described above.

[0037] Preferably, the cleaning device further comprises a floor brush and a body, the gas-liquid separator is arranged on the floor brush, and one end of the body is pivotally connected to the floor brush.

[0038] Preferably, a mounting cavity is formed on the floor brush, and the gas-liquid separator is detachably placed in the mounting cavity; a locking structure for locking / unlocking the gas-liquid separator is provided on the floor brush.

[0039] Compared with the prior art, the present invention has the following advantages: the gas-liquid separator provided by the present invention not only lengthens the path of the fluid in the first cavity, but also generates centrifugal force in the fluid as it passes around the outer wall of the dust bin; thereby, the garbage entrained in the airflow can more fully collide with other obstructive components such as the inner wall of the shell and the outer wall of the dust bin and fall off; based on the above reasons, the sucked fluid can achieve a better separation effect, resulting in a clean and dry airflow discharged from the gas-liquid separation device. In addition, by arranging the dust bin assembly in the first cavity, the internal space layout of the gas-liquid separator is optimized, so that the gas-liquid separator can achieve the same separation effect as the prior art with a smaller volume, making it more compact and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0041] Figure 1 is a schematic diagram of a partial structure of a vacuum cleaner in one embodiment;

[0042] Figure 2 This is a schematic diagram of the gas-liquid separator being removed from the vacuum cleaner;

[0043] Figure 3 is a bottom view schematic diagram of a gas-liquid separator in one embodiment;

[0044] Figure 4 This is a schematic longitudinal section of a gas-liquid separator in one embodiment;

[0045] Figure 5 A schematic longitudinal section of a gas-liquid separator in another plane in one embodiment;

[0046] Figure 6 Schematic diagram of the internal structure of a gas-liquid separator in one embodiment;

[0047] Figure 7 is a schematic cross-sectional view of a gas-liquid separator in one embodiment;

[0048] Figure 8 This is a schematic diagram of the structure of a dust and gas separation element in one embodiment;

[0049] Figure 9 This is a second structural diagram of a dust and gas separation element in one embodiment;

[0050] Figure 10A schematic longitudinal section of a dust and gas separation element in one embodiment, shown below a plane;

[0051] Figure 11 FIG1 is a schematic diagram of a cyclone cone and a filter element in a disassembled state according to an embodiment;

[0052] Figure 12 This is a second schematic diagram of the cyclone cone and the filter element in a disassembled state according to an embodiment;

[0053] Figure 13-16 Schematic diagram of longitudinal sections of filter elements in different embodiments. DETAILED DESCRIPTION

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0055] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0056] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0057] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0058] like Figure 3-Figure 7 As shown, the present invention provides a gas-liquid separator, comprising:

[0059] The housing 1 is provided with an air inlet channel 41 and an air outlet channel 43, and a first cavity is formed inside the housing 1 and is in fluid communication with the air inlet channel 41;

[0060] A dust container assembly disposed in the first cavity, which is in fluid communication with the air outlet channel 43, the dust container assembly comprising a dust container 101 disposed in the first cavity, with a second cavity formed inside the dust container 101; and

[0061] The transfer channel 42 is used to achieve fluid communication between the first cavity and the dust cylinder assembly, that is, to connect the first cavity and the second cavity;

[0062] In the working state, the fluid enters the first cavity through the air inlet channel 41 for gas-liquid separation, and the fluid after gas-liquid separation enters the dust cylinder assembly through the transfer channel 42 for dust-gas separation. The fluid after dust-gas separation flows to the air outlet channel 43 and is discharged from the gas-liquid separator.

[0063] Among them, at least a portion of the fluid that enters the first cavity through the air inlet channel 41 for gas-liquid separation enters the transfer channel 42 after bypassing the dust cylinder component.

[0064] The above-mentioned fluid in this application can be a clean airflow or an airflow entrained with pollutants; the pollutants are at least one of dust, solid pollutants (such as cigarette butts, paper scraps, rice grains, etc.), and dirty liquids (such as orange juice, dirty water, egg liquid, etc.).

[0065] It is understandable that the second cavity 1010 is not directly connected to the first cavity; when the fluid flows in the first cavity, part or all of the fluid needs to bypass the outer surface of the dust cylinder assembly (the outer wall of the dust cylinder 101) before flowing into the transfer channel 42.

[0066] Specifically, the outer peripheral surface at least includes a portion of the outer peripheral surface that is wound in a clockwise direction or a portion of the outer peripheral surface that is wound in a counterclockwise direction.

[0067] Based on the above arrangement, the fluid's travel path in the first cavity is lengthened, that is, the fluid trajectory from the outlet end of the air inlet channel to the inlet end 421 of the transfer channel is lengthened; in this way, the dirt entrained in the airflow can also more fully collide with other obstructive components such as the inner wall of the outer shell and the outer wall of the dust bin to dissipate kinetic energy, thereby falling and being stored at the bottom of the first cavity; in addition, the fluid will generate centrifugal force when passing by the outer wall of the dust bin, which is more conducive to falling after collision.

[0068] As an embodiment of the present invention, the dust cup assembly and the inlet end 421 of the transfer channel are basically arranged along the length direction of the gas-liquid separator; it can be understood that the dust cup assembly is arranged in the first cavity, and along the length direction of the gas-liquid separator, the inlet end 421 of the transfer channel is arranged on one side or the other side of the dust cup assembly.

[0069] The outlet of the air inlet channel is positioned away from the inlet 421 of the transfer channel. That is, the outlet of the air inlet channel is not oriented toward the inlet 421 of the transfer channel. It is understood that the airflow exiting through the outlet of the air inlet channel has an outlet direction (the initial flow direction of the airflow upon exiting), while the airflow entering through the inlet of the transfer channel has an inlet direction (the direction of the airflow upon entering the transfer channel). The space formed by the outlet of the air inlet channel along the outlet direction does not intersect with the space formed by the inlet of the transfer channel along the inlet direction. This allows the fluid to flow toward the inlet 421 of the transfer channel at a moderate rate, thereby reducing the probability of pollutants being directly drawn into the inlet of the transfer channel.

[0070] refer to Figure 4-Figure 6 In a preferred embodiment, the outlet of the air inlet channel is substantially away from the inlet of the transfer channel. With the left-right direction defined as the length of the gas-liquid separator, the dust cup assembly is substantially located to the left of the transfer channel inlet 421, while the outlet of the air inlet channel is located in front of or behind the dust cup assembly and substantially toward the left. This structure maximizes the fluid's path around the dust cup assembly, thereby improving the separation efficiency of the gas-liquid separator.

[0071] Furthermore, the transfer channel inlet end 421 can be basically arranged downward in the vertical direction, or can be basically arranged toward the right side.

[0072] As a preferred embodiment of this invention, all the fluids entering the first cavity bypass the outer peripheral surface of the dust cylinder assembly away from the inlet end 421 of the transfer channel, so that the travel path of all the fluids is lengthened and the collision and falling effect of the dirt is better.

[0073] In the present application, the housing 1 includes a lower housing 11 and an upper housing 12. The upper housing 12 can be opened relative to the lower housing 11 to facilitate handling of pollutants stored in the first cavity. A quick-release assembly is disposed between the lower housing 11 and the upper housing 12 to facilitate rapid opening and closing of the upper housing 12 by the user. Specifically, the quick-release assembly can be selected from a locking structure, a snap-on structure, a magnetic structure, or the like, which are well known to those skilled in the art. A combination of two or more can also be selected, and the quick-release assembly can also be used in combination with a pivoting structure. This application does not impose any further limitations on this.

[0074] refer to Figure 6 As a preferred embodiment, the quick-release assembly of the present application includes a snap structure 132 and a pivot structure 131 .

[0075] In one embodiment of the present application, the transfer channel 42 and the air outlet channel 43 are arranged on the upper shell 12 , and the air inlet channel 41 , the first cavity, and the second cavity are arranged on the lower shell 11 .

[0076] When using a gas-liquid separator to clean dirt, the dirt that falls into the first cavity will inevitably shake. In order to prevent the dirt after shaking from being directly sucked away by the transfer channel inlet end 421, a baffle 111 is provided in the first cavity, and the baffle 111 is arranged at the lower part of the transfer channel inlet end 421.

[0077] refer to Figure 5 By setting the above-mentioned baffle 111, the first cavity can be understood as being decomposed into a first sub-cavity 1021, a second sub-cavity 1022 and a third sub-cavity 1023; wherein, the first sub-cavity 1021 is located on the left side of the baffle 111, the dust cylinder assembly is arranged in the first sub-cavity 1021, and the second sub-cavity 1022 and the third sub-cavity 1023 are respectively located on the upper side and the lower side of the baffle 111.

[0078] Under suction, the fluid enters the first sub-chamber 1021 from the air inlet channel 41 and moves along the airflow direction. During this process, some of the contaminants contained in the fluid may be dispersed into the first sub-chamber 1021, the second sub-chamber 1022, and the third sub-chamber 1023 due to the combined effects of gravity, collision, and other forces. However, it is obvious that the contaminants in the third sub-chamber 1023 are relatively less. Due to the presence of baffle 111, the suction force at the transfer channel inlet end 421 has a smaller effect on the contaminants in the first sub-chamber 1021 and the second sub-chamber 1022, thereby improving the separation efficiency of airflow, solids, and liquids.

[0079] The baffle 111 has a first end close to the dust bin assembly and a second end away from the dust bin assembly, and the second end is configured to be higher than the first end, that is, the baffle 111 is tilted downward toward the dust bin assembly; in this way, when the dirt is in the third sub-chamber 1023, it may be introduced into the first sub-chamber 1021 or the second sub-chamber 1022 under the action of gravity, which not only facilitates the centralized collection of dirt, but also prevents garbage from being stored in the third sub-chamber, which has an adverse effect on the air path.

[0080] In specific application scenarios, the cross-section of the vent at the transfer channel inlet end 421 can be a regular shape such as circular, elliptical, rectangular, or irregular; however, in order to alleviate the concentration of suction and avoid a water pumping effect, the vent cross-section at the transfer channel inlet end 421 should be avoided as much as possible from being slit-shaped. Specifically, the ratio of the maximum length to the maximum width of the vent cross-section is not greater than 5; wherein the directions of the maximum length and the maximum width are perpendicular. For example, when the vent cross-section is rectangular, the length of the long side is defined as the maximum length, and the length of the short side is defined as the maximum width; when the vent cross-section is irregular, the position of the longest vent cross-section length is defined as the maximum length, and then the maximum width is searched in a direction perpendicular to the direction of the maximum length.

[0081] Furthermore, the gas-liquid separator provides suction through a motor, and the above-mentioned motor has a motor air inlet; the air outlet cross-sectional area of the transfer channel inlet end 421 is 1.5-2 times the area of the motor air inlet; this can limit and alleviate the suction at the transfer channel inlet end 421, which is conducive to water vapor separation.

[0082] In a specific application scenario, when the baffle 111 is close to the transfer channel inlet end 421, a pumping effect is easily formed, making it easier for pollutants to be sucked in from the transfer channel inlet end 421; when the baffle 111 is far from the transfer channel inlet end 421, the third sub-chamber 1023 is too large, and pollutants are easily moved into this space, thereby increasing the risk of pollutants flowing out from the transfer channel inlet end 421.

[0083] A first distance d is defined between the transfer channel entrance 421 and the baffle 111. This first distance d represents the minimum distance between the transfer channel entrance 421 and the baffle 111. The first distance d is 12-20 mm, preferably 15 mm. Based on this range, the distance between the baffle 111 and the transfer channel entrance 421 is optimized.

[0084] As an embodiment of the present invention, a max line 1024 is provided on the housing 1 for displaying the maximum volume of pollutants contained in the first cavity; the max line has a second distance c from the second end and a third distance b from the bottom of the first cavity; and the first end has a fourth distance a from the bottom of the first cavity.

[0085] The third spacing b is related to the preset design; for example, when the maximum volume of the pollutants contained in the preset first cavity is 1000 ml and the cross-sectional area of the first cavity is 400 cm 2 When , the height of the max line from the bottom of the first cavity is 2.5 cm.

[0086] Furthermore, the first spacing d is 1 / 3-1 / 2 times the second spacing c, which prevents the liquid from being too close to the baffle at the max line position and affecting the separation effect, and also prevents the liquid from being too far from the baffle at the max line position and wasting internal space.

[0087] Furthermore, the fourth spacing a is more than twice the third spacing b. By combining the above dimensions, the downward tilt angle of the baffle 111 can be limited to obtain a better separation effect.

[0088] In addition, the first end and the transfer channel inlet end 421 have a fifth spacing e in the horizontal direction, and the fifth spacing e is not less than 50 mm. Based on this, while ensuring the separation rate, it can effectively resolve the adverse effects caused by shaking and can also properly guide the direction of the fluid.

[0089] As an embodiment of the present invention, the baffle 111 can be fixed on the upper shell 12; in view of the inclined direction of the baffle 111, such a configuration can facilitate cleaning of the second sub-chamber 1022 and the baffle 111 when the upper shell 12 is opened.

[0090] refer to Figure 6 In another embodiment, the baffle 111 can also be fixed in the lower shell 11. In this way, the load when opening the upper shell 12 is lighter, and the dirt adhered to the baffle 111 will not be flipped into the transfer channel inlet end 421.

[0091] Furthermore, the baffle 111 can be fixed by UV welding, gluing, etc.; in the embodiment in which the baffle 111 is fixed on the lower shell 11, extension plates 1111 are provided at the joints between the first end and the inner wall of the lower shell 11 on both sides; when the dirty liquid in the first cavity shakes, it is easy to move upward along the inner wall of the lower shell 11. By providing the extension plate 1111, the movement amplitude of the dirty liquid can be effectively reduced, thereby preventing the dirty liquid from falling on the top of the baffle 111 and affecting the separation rate.

[0092] Reference Figure 7 , the fluid enters the dust cylinder assembly through the transfer channel outlet end 422; in the present application, the dust cylinder assembly includes a dust cylinder 101 arranged in the first cavity and a dust and gas separation component 5 arranged in the dust cylinder 101; wherein, the outer peripheral surface of the above-mentioned dust cylinder assembly is the outer wall surface of the dust cylinder 101, and the second cavity 1010 is the internal space of the dust cylinder 101.

[0093] In order to facilitate cleaning of the dust and gas separation element 5 , the dust and gas separation element 5 is detachably inserted into the upper shell 12 .

[0094] Further, refer to Figure 8 and Figure 9The dust and gas separation element 5 includes a cyclone cone 51 and a filter element 52 arranged at the outlet end of the cyclone cone 51; the cyclone cone 51 includes an outer cylinder 511 and an inner cylinder 512 arranged in the outer cylinder 511, and a plurality of dust and gas channels 510 are arranged between the outer cylinder 511 and the inner cylinder 512; the fluid moving at the outlet end 422 of the transfer channel directly enters the dust and gas channel 510.

[0095] Specifically, the dust and gas passage 510 is arranged in a spiral downward inclination, so that when the fluid is discharged from the dust and gas passage 510, it can move downward and be thrown outward due to centrifugal force, thereby colliding with the inner wall of the dust cylinder 101. The kinetic energy of dust and small droplets is reduced after being impacted, so they fall and are stored in the second cavity 1010. The airflow separated from the dust and small droplets then flows through the inner cylinder 512 to the air outlet passage 43.

[0096] In one embodiment, in order to prevent the airflow from entering the inner cylinder 512 too quickly and affecting the separation rate, an inverted cone 513 is provided on the inner cylinder 512; a plurality of through holes 5130 communicating with the inner cylinder 512 are opened on the inverted cone 513; the filter element 52 is provided in the inner cylinder 512 and at the upper part of the inverted cone 513.

[0097] Reference Figure 9 and Figure 10 To prevent airflow from entering through-hole 5130 too quickly, a skirt 5121 extends circumferentially from the lower portion of inner cylinder 512; skirt 5121 at least partially vertically covers inverted cone 513. The skirt can be completely closed circumferentially or intermittent (composed of multiple small, spaced-apart skirts), both of which can prevent pollutants from flowing into inverted cone 513.

[0098] The longitudinal section of the lower end portion 5122 of the skirt 5121 is set to be a pointed angle; based on this structure, after the water vapor attached to the outer wall of the inner tube 512 condenses into water droplets, it is more conducive to dripping from the lower end portion 5122 of the skirt into the dust bin 101 instead of sliding to the inner side of the skirt.

[0099] The dust and gas separator 5 is easy to sink when it is inserted into the upper shell 12. To solve this problem, refer to Figure 5 、 Figure 9 and Figure 10 A support 514 is fixed to the lower part of the cyclone cone 51, which can be supported in the dust cylinder 101 to support the dust and gas separator 5 from the bottom.

[0100] Specifically, the pillars 514 can be fixed to the outer cylinder 511, the inner cylinder 512, the skirt 5121, or the inverted cone 513 via connecting ribs (not shown). The spaces between adjacent connecting ribs can be considered as through holes 5130. Furthermore, a support column 1011 can be provided in the dust cylinder 101 to support the pillars 514. The support column 1011 and the pillars 514 can both be solid and directly support each other, or at least one of them can be configured as a sleeve to support each other in a plug-in manner.

[0101] When closing the upper shell 12, in order to enable the anti-pillar 1011 to limit the position of the pillar 514 in the horizontal direction, in this embodiment, the anti-pillar 1011 is preferably set to a sleeve shape, and the pillar 514 can be inserted therein; in order to enable the pillar 514 to be easily inserted into the anti-pillar 1011 when the upper shell 12 is flipped and closed, the lower end of the pillar 514 is provided with a chamfer or rounded corner.

[0102] In one embodiment of the present application, the airflow flowing into the through hole 5130 can be filtered again by the filter element 52 in the inner cylinder 512 and then flow out of the inner cylinder 512 .

[0103] In the prior art, the filter element is usually a single-stage filter, and its filtering effect is poor. To improve this problem, the filter element 52 of the present application includes a first ring body 521 for supporting and connecting to the inner cylinder 512, a cylindrical filter screen 525 fixed on the first ring body 521, and a partition 522 fixed inside the cylindrical filter screen 525. Figure 13 As can be understood, the partition 522 divides the interior of the cylindrical filter 525 into a first filter chamber 531 and a second filter chamber 532. After entering the through-hole 5130, the airflow first enters the first filter chamber 531 and undergoes primary filtration through the filter mesh surrounding the first filter chamber 531. After primary filtration, the airflow bypasses the partition 522 and undergoes secondary filtration through the filter mesh surrounding the second filter chamber 532 before entering the second filter chamber 532. This achieves dual-stage filtration and improves the filtration effect. Furthermore, the partition 522 also blocks dust and small droplets, facilitating their downward flow, thereby further improving the separation efficiency.

[0104] In specific application scenarios, such as Figure 13-15 As shown, the outer edge of the partition 522 can be connected to the inner side of the cylindrical filter 525 by abutting against it, and the two can be fixed together by conventional means such as gluing, interference fit or UV welding.

[0105] like Figure 16As shown, the outer edge of the partition 522 can also extend to the outside of the cylindrical filter 525, that is, the partition 522 has a flange 5221 extending outside the cylindrical filter 525; under the obstruction of the flange 5221, the airflow after the first stage of filtration can be prevented from entering the second filter chamber 532 too quickly, allowing dust and small droplets and other pollutants intercepted by the partition 522 to have sufficient time to fall downward. Specifically, the flange 5221 can be provided by integrally forming the partition 522, the flange 5221, and the cylindrical filter 525, or by providing the cylindrical filter 525 with two parts, each of which is fixedly connected to the partition 522. Other technical means known to those skilled in the art can also be used, and are not further limited in this application.

[0106] As an embodiment of the present application, the partition 522 can be configured as a flat plate (refer to Figure 13 ), can be set to a plate shape with a concave middle (spherical shape, inverted cone shape, multiple flat plates with the tips facing downwards, etc., refer to Figure 14 ), it can also be set to a plate shape with a convex middle (such as an upper spherical shape, a positive cone shape, a combination of multiple flat plates with the tips facing upwards, etc., refer to Figure 15 );

[0107] When the partition 522 is in the shape of a plate with a depression in the middle, it can guide the airflow after the first level of filtration upward to reduce the operating noise of the gas-liquid separator; when the partition 522 is in the shape of a plate with a convexity in the middle, it can guide the airflow after the first level of filtration downward, which can not only buffer the flow rate of the airflow flowing to the second filter chamber 532, but also help dirt such as dust and small droplets to fall downward.

[0108] In order to strengthen the connection strength between the cylindrical filter screen 525, the partition plate 522 and the first ring body 521, a plurality of reinforcing ribs 523 are provided on the first ring body 521, and at least one of the cylindrical filter screen 525 and the partition plate 522 is connected to the above-mentioned reinforcing ribs 523; further, a second ring body 524 can be provided at the lower part of the reinforcing rib 523 to support the lower end of the cylindrical filter screen 525.

[0109] In a specific application scenario, the filter element 52 may rotate relative to the cyclone cone 51 along its circumference. To solve this problem, refer to Figure 11 and Figure 12 , a plurality of limiting grooves 5131 are provided on the inner cylinder 512 or the inverted cone cylinder 513 , and a limiting block 5241 that can be matched and plugged into the limiting groove 5131 is provided on the second ring body 524 .

[0110] Furthermore, to ensure that dust, small droplets, and other pollutants intercepted by the filter element 52 can flow smoothly out of the through-hole 5130 and into the dust canister 101, the stopper 5241 of the present application includes a first stopper 5242 capable of abutting one end of the stopper groove 5131 and a second stopper 5243 capable of abutting the other end of the stopper groove 5131. A gap 5244 is provided between the first stopper 5242 and the second stopper 5243. Furthermore, a notch 5132 is provided in the stopper groove 5131, which is in communication with the gap 5244. Consequently, dust, small droplets, and other pollutants flowing from the inner cylinder 512 and the cylindrical filter screen 525 can pass through the gap 5244 and the notch 5132 and flow out of the through-hole 5130.

[0111] Furthermore, the notch 5132 corresponds to the position of the connecting rib (i.e., one end of the connecting rib is connected to the notch); in this way, the dirt flowing out of the notch 5132 can directly adhere to the connecting rib and flow downward along the length direction of the connecting rib, so that the airflow entering the through hole 5130 can affect the downward movement of the dirt as little as possible, and it is also beneficial for the dirt to continuously flow into the second cavity 1010 along the support 514 and the support column 1011.

[0112] like Figure 1 and Figure 2 As shown, the present invention also provides a cleaning device, including the gas-liquid separator in the above embodiment; wherein, the cleaning device can be a floor scrubber, a vacuum cleaner, a sweeping robot, etc.

[0113] Taking the cleaning equipment as a vacuum cleaner as an example, it also includes a floor brush 2 and a body 3; wherein, the gas-liquid separator is arranged on the floor brush 2, one end of the body 3 is pivotally connected to the floor brush 2, and the floor brush 2 has an air intake channel 21 and an exhaust channel 22; one end of the air intake channel 21 is used to suck in dirt on the surface to be cleaned, and the other end is used to connect with the air intake channel 41, one end of the exhaust channel 22 is used to connect with the air outlet channel 43, and the other end is connected to the body channel 30 fluid in the body 3.

[0114] Furthermore, the floor brush 2 is formed with a mounting cavity 20, into which the gas-liquid separator is removably placed, thereby facilitating the removal of pollutants stored in the gas-liquid separator. Furthermore, the floor brush 2 may be provided with a locking structure to lock / unlock the gas-liquid separator, thereby ensuring airtightness and installation stability between the gas-liquid separator and the floor brush 2. Specifically, the locking structure may be at least one of a locking structure, a snap-fit structure, a magnetic structure, and the like, known to those skilled in the art.

[0115] In the present application, the vacuum cleaner also includes a motor, which can provide suction when powered on, so that the fluid flows through the floor brush, the gas-liquid separator, and the body.

[0116] In a specific application scenario, the motor can be directly fixed on the body 3, or integrated into a portable vacuum cleaner (small handheld), and suction to the fluid is provided by configuring the portable vacuum cleaner and the body to be fluidically connected.

[0117] Note that the basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, which are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications are intended to fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A gas-liquid separator, characterized in that: include: A housing (1) comprising a lower housing (11) and an upper housing (12), wherein a first cavity is formed inside the housing (1); A dust cylinder assembly, comprising a dust cylinder (101) arranged in the first cavity, a second cavity being formed inside the dust cylinder (101); and A transfer channel (42) for connecting the first cavity and the second cavity; The housing (1) is provided with an air inlet channel (41) and an air outlet channel (43); in a working state, the fluid enters the first cavity through the air inlet channel (41) for gas-liquid separation, the fluid after gas-liquid separation enters the dust cylinder assembly through the transfer channel (42) for dust-gas separation, and the fluid after dust-gas separation flows to the air outlet channel (43) and is discharged from the gas-liquid separator; Wherein, at least part of the fluid undergoing gas-liquid separation needs to bypass the outer wall of the dust cylinder (101) before entering the transfer channel (42); The inlet end (421) of the transfer channel (42) and the dust cylinder assembly are basically arranged along the length direction of the gas-liquid separator, and the outlet end of the air inlet channel is arranged in a direction away from the inlet end (421) of the transfer channel (42); The transfer channel (42) and the air outlet channel (43) are arranged on the upper shell (12), and the air inlet channel (41), the first cavity, and the second cavity are arranged on the lower shell (11); A baffle (111) is provided in the first cavity, and the baffle (111) is arranged at the lower portion of the inlet end (421) of the transfer channel (42); The baffle (111) has a first end close to the dust cylinder assembly and a second end away from the dust cylinder assembly, and the second end is configured to be higher than the first end.

2. The gas-liquid separator according to claim 1, characterized in that The dust cylinder assembly is basically arranged on the left side of the inlet end (421) of the transfer channel (42), and the outlet end of the air inlet channel is located at the rear side of the dust cylinder assembly and is basically arranged towards the left side.

3. The gas-liquid separator according to claim 1, characterized in that The upper shell (12) can be opened relative to the lower shell (11); A quick-release assembly is arranged between the lower shell (11) and the upper shell (12).

4. The gas-liquid separator according to claim 1, characterized in that The inlet end (421) of the transfer channel (42) has an air outlet cross section, and the ratio of the maximum length to the maximum width of the air outlet cross section is not greater than 5.

5. The gas-liquid separator according to claim 4, characterized in that The gas-liquid separator provides suction through a motor, and the motor has a motor air inlet; the air inlet cross-sectional area of the inlet end (421) of the transfer channel (42) is 1.5-2 times the area of the motor air inlet.

6. The gas-liquid separator according to claim 4 or 5, characterized in that: There is a first distance between the inlet end (421) of the transfer channel (42) and the baffle (111), and the first distance is 12-20 mm.

7. The gas-liquid separator according to claim 6, characterized in that A max line (1024) is provided on the housing (1), the max line has a second distance from the second end and a third distance from the bottom of the first cavity, and the first end has a fourth distance from the bottom of the first cavity.

8. The gas-liquid separator according to claim 7, characterized in that The first spacing is 1 / 3 to 1 / 2 times the second spacing.

9. The gas-liquid separator according to claim 8, characterized in that The fourth spacing is more than twice the third spacing.

10. The gas-liquid separator according to claim 1, characterized in that There is a fifth distance between the first end and the inlet end (421) of the transfer channel (42) in the horizontal direction, and the fifth distance is not less than 50 mm.

11. The gas-liquid separator according to claim 1, characterized in that: The baffle (111) is fixed on the upper shell (12) or in the lower shell (11).

12. The gas-liquid separator according to claim 1, characterized in that The baffle (111) is fixed in the lower shell (11), and extension plates (1111) are provided at the junctions between the first end and both sides of the inner wall of the lower shell (11).

13. The gas-liquid separator according to claim 3, characterized in that The dust cylinder assembly further comprises a dust and gas separation component (5) arranged in the dust cylinder (101); The dust and gas separation component (5) is detachably inserted into the upper shell (12).

14. The gas-liquid separator according to claim 13, characterized in that The dust and gas separation element (5) comprises a cyclone cone (51) and a filter element (52) arranged at the outlet end of the cyclone cone (51); The cyclone cone (51) comprises an outer cylinder (511) and an inner cylinder (512) arranged in the outer cylinder (511), and a plurality of dust and gas channels (510) are arranged between the outer cylinder (511) and the inner cylinder (512).

15. The gas-liquid separator according to claim 14, characterized in that The dust and gas channel (510) is arranged in a spiral shape and tilted downward.

16. The gas-liquid separator according to claim 14, characterized in that An inverted cone (513) is provided on the inner cylinder (512); a plurality of through holes (5130) communicating with the inner cylinder (512) are provided on the inverted cone (513); The filter element (52) is arranged in the inner cylinder (512) and is arranged on the upper part of the inverted cone cylinder (513).

17. The gas-liquid separator according to claim 16, characterized in that A skirt (5121) extends from the lower portion of the inner cylinder (512) along its circumference, and the skirt (5121) at least partially covers the inverted cone cylinder (513) in the vertical direction.

18. The gas-liquid separator according to claim 17, characterized in that The longitudinal section of the lower end portion (5122) of the skirt (5121) is configured to be pointed.

19. The gas-liquid separator according to claim 14, characterized in that A support column (514) is fixed to the lower portion of the cyclone cone (51); a support column (1011) is provided in the dust cylinder (101) to support the support column (514); At least one of the support pillar (514) and the support pillar (1011) is in a sleeve shape.

20. The gas-liquid separator according to claim 16, wherein The filter element (52) comprises a first ring body (521) for supporting and connecting to the inner cylinder (512), a cylindrical filter screen (525) fixed on the first ring body (521), and a partition plate (522) fixed inside the cylindrical filter screen (525).

21. The gas-liquid separator according to claim 20, characterized in that The outer edge of the partition (522) is connected to the inner side of the cylindrical filter (525) or extends to the outer side of the cylindrical filter (525).

22. The gas-liquid separator according to claim 20, characterized in that The partition (522) is configured to be in the shape of a flat plate, a plate with a depression in the middle, or a plate with a convexity in the middle.

23. The gas-liquid separator according to claim 20, characterized in that A plurality of reinforcing ribs (523) are provided on the first ring body (521), and at least one of the cylindrical filter screen (525) and the partition plate (522) is connected to the reinforcing ribs (523).

24. The gas-liquid separator according to claim 23, characterized in that A second ring body (524) is provided at the lower portion of the reinforcing rib (523) for supporting and connecting the lower end of the cylindrical filter screen (525).

25. The gas-liquid separator according to claim 24, characterized in that A plurality of limiting grooves (5131) are provided on the inner cylinder (512) or the inverted cone cylinder (513), and a limiting block (5241) capable of matching and plugging with the limiting grooves (5131) is provided on the second ring body (524).

26. The gas-liquid separator according to claim 25, characterized in that The limiting block (5241) comprises a first limiting block (5242) capable of abutting against one end inside the limiting groove (5131) and a second limiting block (5243) capable of abutting against the other end inside the limiting groove (5131); Wherein, a gap (5244) is provided between the first limiting block (5242) and the second limiting block (5243); A notch (5132) is provided on the limiting groove (5131), and the notch (5132) is communicated with the gap (5244).

27. The gas-liquid separator according to claim 26, characterized in that A support (514) is fixed to the lower portion of the cyclone cone (51), and the support (514) is fixed to the inverted cone cylinder (513) via connecting ribs; The notch (5132) corresponds to the position of the connecting rib.

28. A cleaning device, characterized in that: Comprising the gas-liquid separator according to any one of claims 1-27.

29. The cleaning device according to claim 28, wherein It also includes a floor brush (2) and a body (3), the gas-liquid separator is arranged on the floor brush (2), and one end of the body (3) is pivotally connected to the floor brush (2).

30. The cleaning device according to claim 29, wherein The floor brush (2) is formed with a mounting cavity (20), and the gas-liquid separator is detachably placed in the mounting cavity (20); The floor brush (2) is provided with a locking structure for locking / unlocking the gas-liquid separator.

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