Airflow guide assembly and dust collection equipment

Abstract

The utility model provides an airflow guiding assembly and dust collection equipment, the airflow guiding assembly is located in a second filtering part, and a fluid outlet of the airflow guiding assembly faces a filtering area of the second filtering part. Wherein the air flow guiding assembly is composed of a plurality of guiding parts, each guiding part comprises a pipe body part, a fluid inlet and a fluid outlet, the fluid inlet and the fluid outlet are located at the two ends of the pipe body part respectively, the fluid inlet faces the upstream area of the pipe body part, and the fluid outlet faces the downstream area of the pipe body part and faces the position of the filtering area in the second filtering part. According to the utility model, the fluid outlet of the guiding component is arranged to face the filtering area of the second filtering component, so that the guiding path of airflow in the second filtering component can be shortened, and the second filtering component can quickly complete airflow filtering operation.

Description

Technical Field

[0001] The utility model relates to the field of dust collection equipment, in particular to an airflow guide component and dust collection equipment. Background Art

[0002] At present, in the existing vacuum cleaners, an airflow guide assembly is usually used to guide the airflow filtered by the first filter assembly to the inside of the second filter component, and then the airflow entering the inner area thereof is filtered for a second time by the second filter component. However, since the fluid outlet of the existing airflow guide assembly is not oriented toward the position of the filter area in the second filter component, the airflow guide assembly cannot directly guide the airflow to the position of the filter area in the second filter component, which not only prolongs the transmission path of the airflow inside the second filter component, but also causes the second filter component to be unable to quickly complete the filtering operation of the airflow. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides an airflow guide component and a dust collection device which can shorten the guiding path of the airflow inside the second filter component so that the second filter component can quickly complete the airflow filtering operation.

[0004] To achieve the above objectives, in a first aspect, the utility model provides an airflow guide assembly, which is located inside a second filter component, and a fluid outlet of the airflow guide assembly faces a filter area of ​​the second filter component.

[0005] In one of the embodiments, the airflow guide assembly is composed of a plurality of guide components;

[0006] The guide component includes a tube body, and a fluid inlet and a fluid outlet respectively located at both ends of the tube body, the fluid inlet is toward the upstream area of ​​the tube body, and the fluid outlet is toward the downstream area of ​​the tube body and faces the position of the filter area in the second filter component.

[0007] In one embodiment, the tube body portion includes a longitudinal tube body and a curved tube body connected thereto, the fluid inlet is located at the end of the longitudinal tube body, and the fluid outlet is located at the top of the curved tube body and faces the filter area in the second filter component.

[0008] In a second aspect, the utility model provides a dust collection device, comprising the above-mentioned airflow guide assembly.

[0009] In one embodiment, the vacuuming device further includes a dust cup body, a front shell, a first filter assembly, an airflow guiding assembly, a rear shell, a motor and an airflow channel, the first filter assembly and a portion of the airflow guiding assembly are located inside the dust cup body, the other portion of the airflow guiding assembly, the airflow guiding assembly and the second filter component are located inside the front shell, the motor is located inside the rear shell, and the airflow guiding assembly, the airflow guiding assembly, the second filter component and the motor are sequentially located in the downstream area of ​​the first filter assembly.

[0010] In one embodiment, the first filter assembly is suspended inside the dust cup body and away from the bottom of the dust cup body;

[0011] The first filter assembly includes a filter screen cover, a support structure, an air guide cover, a centrifugal filter component and a cone portion, the filter screen cover is sleeved on the outside of the support structure, the air guide cover and the centrifugal filter component are both located inside the support structure, and the air guide cover is located in the upstream area of ​​the centrifugal filter component, and the cone portion is located inside the air guide cover and connected to the air guide cover.

[0012] In one embodiment, the airflow guiding assembly includes a transmission shaft, and a transmission component and an airflow guiding component sequentially sleeved thereon;

[0013] The transmission component is sleeved on the outer side of the upper part of the transmission shaft and is located inside the front housing, and the airflow guide component and the centrifugal filter component are both sleeved on the outer side of the lower part of the transmission shaft and are located inside the dust cup body;

[0014] The transmission component, the transmission shaft, the airflow guide component and the centrifugal filter component rotate along the direction of the axis A under the drive of the inhaled airflow.

[0015] In one embodiment, the airflow channel includes a first channel for guiding the airflow to the inside of the dust cup body along a guide path W, a second channel for guiding the airflow to the outside of the first filter component along a guide path X, a third channel for guiding the airflow to the inside of the second filter component along a guide path Y, and a fourth channel for guiding the airflow to the outside of the rear shell along a guide path Z;

[0016] Wherein, the first channel, the second channel, the third channel and the fourth channel are connected in sequence.

[0017] In one embodiment, the first channel is located inside the suction pipe, the second channel is located inside the dust cup body, the third channel is formed by the first filter component, the airflow guide component and the airflow guide component, and the fourth channel is formed by the second filter component, the motor and the rear shell.

[0018] In one embodiment, the motor is located in the downstream area of ​​the second filter component and is arranged inside the rear housing, and the airflow is guided to the outside of the rear housing along the guide path Z;

[0019] The motor generates a continuous inhaled airflow along the direction of axis B, which in turn passes through the second filter component and the airflow guide assembly, and then drives the airflow guide assembly to rotate along the direction of axis A.

[0020] Compared with the prior art, the utility model has one of the following advantages:

[0021] The fluid outlet of the guide component is arranged to face the filtering area of ​​the second filtering component, so that the guiding path of the airflow inside the second filtering component can be shortened, so that the second filtering component can quickly complete the airflow filtering operation;

[0022] When the bottom end of the dust cup body rotates toward the area above it, at least a portion of the first blocking portion and at least a portion of the second blocking portion will follow the rotation of the dust cup body to contact each other, thereby closing at least a portion of the reserved gap. Since the particles such as hair and liquid in the first dust storage area are located below the closed area, the particles such as hair and liquid in the first dust storage area can be prevented from overflowing to the outside of the first dust storage area.

[0023] By adding a barrier component in the upper area of ​​the first dust storage area, when the filtered liquid in the dust-containing fluid contacts the barrier component, the barrier component will form a buffering effect on the filtered liquid, reduce the falling speed of most of the liquid, and prevent the filtered liquid from splashing when entering the first dust storage area;

[0024] Since the airflow channel only includes two filter components with simple structures, the airflow channel has the characteristics of compact structure, and the fluid can flow more smoothly inside the vacuum cleaner, while ensuring the filtering effect, the suction force of the inhaled airflow will not be reduced;

[0025] The airflow guide assembly and the motor adopt a split structure, and a part of the airflow guide assembly is located inside the dust cup body, closer to the air inlet end of the suction pipe, so that the hair and other particles on the cleaning surface can be quickly guided to the inside of the vacuum cleaner;

[0026] The centrifugal filter component is used to replace the existing cyclone cone, which can shorten the length of the airflow channel and simplify the structure of the airflow channel; in addition, the centrifugal filter component is located in the downstream area of ​​the filter screen cover, and when the fluid filtered by the filter screen cover contacts and collides with the bottom end surface of the centrifugal filter component, the particles and / or liquid in the fluid can be separated from the airflow and fall into the interior of the second dust storage area, thereby completing the filtering operation of the particles and / or liquid;

[0027] By adding interconnected liquid guide holes on the outer wall surface of the second dust storage area and the outer bracket, the liquid in the second dust storage area can be guided to the inside of the first dust storage area, avoiding the liquid from being retained in the second dust storage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of the utility model;

[0029] Figure 2 for Figure 1 Internal structure diagram;

[0030] Figure 3 for Figure 1 Schematic diagram of the air duct guiding path;

[0031] Figure 4 for Figure 1 Schematic diagram of the axis;

[0032] Figure 5 for Figure 1 The local structure diagram a;

[0033] Figure 6 for Figure 1 Partial structure diagram b;

[0034] Figure 7 for Figure 1 The local structure diagram c;

[0035] Figure 8 for Figure 1 The local structure diagram d;

[0036] Fig. 9 for Figure 1 The local structure diagram e;

[0037] Fig.10 This is a structural diagram of the first filter component and the airflow guide component after integration.

[0038] The main reference numerals are as follows:

[0039] 1-suction pipe; 2-front shell; 3-dust cup body;

[0040] 31-first filter assembly; 310-filter screen cover; 311-upper ring plate; 3110-protrusion; 312-bracket; 3120-outer bracket; 31201-liquid guide hole b; 31202-buckle; 3121-annular connecting plate; 3122-bottom shell of the second dust storage area; 31221-annular plate; 31222-first bottom plate; 31223-annular bottom plate; 312231 -liquid guide hole a; 3123-middle area; 313-air guide cover; 3131-first annular wall; 31311-air guide strip hole; 3132-second annular wall; 3133-third annular wall; 314-cone portion; 315-centrifugal filter component; 3151-centrifugal baffle; 3152-centrifugal dust filter channel; 3153-top wall; 3154-bottom wall; 3155-fluid guide portion;

[0041] 32-airflow guide assembly; 321-transmission shaft; 322-transmission component; 323-airflow guide component; 324-orifice plate; 325-impeller cavity; 3251-cavity ring plate; 3252-partition plate; 326-fastener a; 327-fastener b;

[0042] 33-second filter component; 34-guide component; 35-first dust storage area; 36-second dust storage area;

[0043] 37-first blocking portion; 371-assembly portion; 372-inclined portion; 373-lower end portion; 374-reserved gap;

[0044] 38-second blocking portion; 39-annular protrusion;

[0045] 4-rear housing; 41-motor; 42-exhaust hole;

[0046] 5-Handle;

[0047] 6-power supply assembly; 61-release mechanism; 610-operating unit. DETAILED DESCRIPTION

[0048] like Figures 1 to 10 As shown, the utility model provides a handheld vacuum cleaner, comprising a front end portion, a rear end portion and an air flow channel.

[0049] The front end portion includes a suction pipe 1, a front shell 2, a dust cup body 3, a first filter component 31, a second filter component 33, an airflow guide component 32 and an airflow guide component.

[0050] The rear end portion includes a rear shell 4 , a motor 41 , a handle 5 and a power supply assembly 6 .

[0051] The airflow channel includes a first channel that guides the airflow into the dust cup body 3 along the guide path W, a second channel that guides the airflow to the position of the filter cover 310 along the guide path X, a third channel that guides the airflow into the second filter component 33 along the guide path Y, and a fourth channel that guides the airflow to the outside of the rear shell 4 along the guide path Z.

[0052] Among them, the first channel, the second channel, the third channel and the fourth channel are connected in sequence.

[0053] In this embodiment, the first channel is located inside the suction pipe 1, the second channel is located inside the dust cup body 3, the third channel is composed of the first filter component 31, the airflow guide component 32 and the airflow guide component, and the fourth channel is composed of the second filter component 33, the motor 41 and the rear shell 4.

[0054] The hair and other particles on the external cleaning surface are guided into the first channel inside the suction pipe 1 under the action of the suction airflow, and are transported in the first channel along the direction of the guide path W. The hair and other particles are mixed with the suction airflow in the first channel to form a dust-laden airflow.

[0055] Under the action of the suction airflow, the dust-laden airflow is guided from the first channel to the inside of the dust cup body 3. In the dust cup body 3. Under the action of the suction airflow, the dust-laden airflow is guided in the second channel along the direction of the guide path X to the position of the first filter assembly 31.

[0056] The dust-laden airflow leaves the second channel under the action of the suction airflow to enter the third channel, and passes through the first filter assembly 31, the airflow guide assembly 32 and the interior of the airflow guide assembly in sequence along the direction of the guide path Y.

[0057] The dust-laden airflow leaves the third channel under the action of the suction airflow to enter the fourth channel, and is guided to the outside of the dust collection device along the direction of the guide path Z, passing through the second filter component 33, the motor 41, the rear shell 4 and the exhaust hole 42 in sequence.

[0058] In this embodiment, the end of the suction pipe 1 is connected to the interior of the dust cup body 3, and the front shell 2 is detachably snapped onto the top of the dust cup body 3. The first filter assembly 31 is located inside the dust cup body 3, the second filter component 33 is detachably arranged inside the front shell 2, a part of the airflow guide assembly 32 is located inside the front shell 2, and the other part is located inside the dust cup body 3. The first filter assembly 31 is suspended inside the dust cup body 3 and away from the bottom of the dust cup body 3. The area between the bottom end surface of the first filter assembly 31 and the bottom of the dust cup body 3 forms a first dust storage area 35.

[0059] The first filter assembly 31 includes a filter screen cover 310 , a support structure, an air guide cover 313 , a centrifugal filter component 315 and a cone portion 314 .

[0060] The support structure includes an upper ring plate 311 and a support portion 312 detachably connected thereto. A plurality of protrusions 3110 and a plurality of slots (not shown in the figure) are provided on the outer wall surface of the upper ring plate 311 at equal intervals along its circumferential direction, wherein the plurality of protrusions 3110 are close to the top end of the upper ring plate 311, and the plurality of slots (not shown in the figure) are close to the bottom end of the upper ring plate 311.

[0061] The bracket portion 312 includes an outer bracket 3120 , a second dust storage area bottom shell 3122 and an annular connecting plate 3121 . The outer bracket 3120 surrounds the outer side of the second dust storage area bottom shell 3122 , and both are connected to the annular connecting plate 3121 .

[0062] Among them, a plurality of clips 31202 are provided at equal intervals at the top end of the outer bracket 3120 along its circumferential direction. After the plurality of clips 31202 are engaged with a plurality of slots (not shown in the figure) on the upper ring plate 311, the assembly of the upper ring plate 311 and the bracket part 312 is completed.

[0063] In addition, liquid guide holes b31201 are provided at equal intervals along the circumferential direction of the outer bracket 3120. Since the outer bracket 3120 surrounds the outer side of the second dust storage area bottom shell 3122, an intermediate area 3123 is formed between the outer bracket 3120 and the second dust storage area bottom shell 3122.

[0064] The top of the second dust storage area bottom shell 3122 is an open structure, including an annular plate 31221 and a bottom plate connected to the bottom thereof.

[0065] A plurality of liquid guide holes a312231 are also provided on the wall surface of the annular plate 31221 at equal intervals along its circumferential direction.

[0066] The bottom plate is roughly in a conical structure, including a horizontal first bottom plate 31222 and an inclined annular bottom plate 31223 , wherein the top end of the annular bottom plate 31223 is connected to the edge of the first bottom plate 31222 .

[0067] The air guide cover 313 is disposed inside the outer bracket 3120, and the top end thereof is connected to the bottom end of the upper ring plate 311. The air guide cover 313 and the upper ring plate 311 may be in an integrated structure.

[0068] In this embodiment, the air guide cover 313 includes an inclined first annular wall surface 3131, a cylindrical second annular wall surface 3132, and a horizontal third annular wall surface 3133. The second annular wall surface 3132 is connected to the first annular wall surface 3131, and the third annular wall surface 3133 surrounds the outer side of the first annular wall surface 3131 and is connected to the first annular wall surface 3131.

[0069] A plurality of air guide holes 31311 are provided on the first annular wall surface 3131 along its circumferential direction, and the plurality of air guide holes 31311 are all facing the bottom end surface of the centrifugal filter component 315 .

[0070] The cone portion 314 is invertedly disposed inside the second annular wall surface 3132 and connected to the second annular wall surface 3132 .

[0071] In this embodiment, when the bracket portion 312 is buckled with the upper ring plate 311, the third annular wall surface 3133 abuts against the top of the annular plate 31221, thereby forming the second dust storage area 36. The second annular wall surface 3132 is also located inside the second dust storage area 36 and close to the first bottom plate 31222.

[0072] In addition, when the bracket portion 312 is engaged with the upper ring plate 311, the first annular wall 3131 is located above the filter screen cover 310, and several through holes (not shown in the figure) in the filter screen cover 310 are connected to the several air guide holes 31311 on the first annular wall 3131 through the middle area 3123.

[0073] When the dust-laden air flow passes through the suction pipe 1 and enters the interior of the dust cup body 3, the filter cover 310 can block large particles such as hair in the dust-laden air flow (i.e., dust-laden gas) to separate the large particles such as hair from the air flow. The large particles such as hair separated from the air flow fall into the first dust storage area 35 below the bracket portion 312.

[0074] The airflow that has been filtered once is transmitted to the position of the air guide cover 313 through the multiple through holes on the filter cover 310 and the middle area 3123, and is transmitted to its downstream position through the multiple air guide through holes 31311 on the air guide cover 313.

[0075] The centrifugal filter component 315 is located inside the upper ring plate 311 and above the air guide cover 313 .

[0076] The centrifugal filter component 315 includes a top wall 3153, a bottom wall 3154, a plurality of centrifugal baffles located between the top wall 3153 and the bottom wall 3154, a plurality of centrifugal dust filter channels 3152 formed by the plurality of centrifugal baffles 3151, a plurality of fluid inlets located on the side wall surface of the centrifugal filter component 315, and a fluid outlet located at the top end of the top wall 3153, each centrifugal dust filter channel 3152 is connected to one of the fluid inlets, and the plurality of centrifugal dust filter channels 3152 are also connected to the fluid outlet.

[0077] In addition, the edge of the top wall 3153 is located on the outside of the bottom wall 3154 and close to the inner wall surface of the upper ring plate 311 to form a fluid guide portion 3155 to guide a portion of the fluid into the centrifugal dust filter channel 3152.

[0078] When the airflow after the primary filtration is transmitted to the position of the centrifugal filter component, a part of the airflow will first contact and collide with the bottom end surface of the centrifugal filter component. After the airflow contacts and collides with the bottom end surface of the centrifugal filter component, the small particles of dust in the airflow are separated from the airflow after the contact and collision, and the separated small particles of dust then pass through the air guide cover 313 and the cone part 314 located in the air guide cover 313 and fall into the second dust storage area 36.

[0079] If another part of the airflow that has been filtered once does not contact the bottom end surface of the centrifugal filter component 315 , it will enter the interior of the centrifugal filter component 315 through the gap between the centrifugal filter component 315 and the upper ring plate 311 .

[0080] When the airflow enters the centrifugal dust filter channel 3152 connected to the centrifugal dust filter channel 3152 through the fluid inlet, the airflow contacts and collides with the centrifugal baffle 3151 in the centrifugal dust filter channel 3152, so that the small dust particles in the airflow are separated from the airflow after the contact and collision, and are then guided out to the outside of the centrifugal filter component through the fluid inlet under the action of centrifugal force. The separated small dust particles then pass through the air guide cover 313 and the cone part 314 located in the air guide cover 313 and fall into the second dust storage area 36, ​​and the airflow after secondary filtration is guided out through the fluid outlet connected to the other end of the centrifugal dust filter channel 3152, so as to be transmitted to the downstream area of ​​the centrifugal filter component through the airflow guide assembly 32.

[0081] In this embodiment, the centrifugal filter component 315 is a centrifugal impeller, and the bottom end surface of the centrifugal impeller faces the air guide cover 313 .

[0082] The airflow guiding assembly 32 mainly includes a transmission shaft 321 , and a transmission component 322 , a perforated plate 324 and an airflow guiding component 323 which are sequentially sleeved thereon.

[0083] The orifice plate 324 is disposed in the area between the front housing 2 and the dust cup body 3, and divides the transmission shaft 321 into an upper part and a lower part, wherein the upper part of the transmission shaft 321 is located inside the front housing 2, and the lower part of the transmission shaft 321 is located inside the dust cup body 3. The transmission component 322 is sleeved on the outer side of the upper part of the transmission shaft 321 to be located inside the front housing 2, and the airflow guide component 323 is sleeved on the outer side of the lower part of the transmission shaft 321 to be located inside the dust cup body 3.

[0084] In this embodiment, the transmission component 322 is a transmission impeller, and the airflow guiding component 323 is a fan blade.

[0085] The centrifugal filter component is also sleeved on the outer side of the lower part of the transmission shaft 321 and is located below the fan blades. A reserved gap (not shown in the figure) is set between the centrifugal filter component and the fan blades to ensure that the two will not contact each other during rotation to avoid the two from affecting each other.

[0086] In addition, a fastener b327 is also installed at the end of the lower part of the transmission shaft 321 to prevent the fan blades and the centrifugal filter component from being separated from the lower part of the transmission shaft 321.

[0087] An impeller cavity 325 is provided inside the front housing 2 , which is formed by assembling a cavity ring plate 3251 , a partition plate 3252 and a hole plate 324 .

[0088] The transmission impeller is located inside the impeller cavity 325. After the upper portion of the transmission shaft 321 passes through the impeller cavity 325 and the interior of the partition plate 3252 in sequence, the top end of the upper portion is placed above the partition plate 3252 through a fastener a326.

[0089] A plurality of through holes are formed on the orifice plate 324. When the airflow passes through the orifice plate 324, the plurality of through holes can block the previously unseparated particles such as hair in the airflow, preventing them from entering the impeller cavity 325 and entangled with the transmission impeller, thereby affecting the rotation of the transmission impeller.

[0090] The airflow guide component 32 rotates along the direction of the axis A under the drive of the inhaled airflow, thereby generating a guided airflow, so that particulate matter such as hair on the external surface to be cleaned can be guided into the interior of the dust cup body 3 under the action of the guided airflow, so as to be filtered for the first time through the first filter component 31.

[0091] The second filter component 33 is located above the impeller cavity 325 and is detachably connected to the top end surface of the partition plate 3252 .

[0092] A plurality of guide components 34 are further provided on the top of the partition plate 3252 , and the plurality of guide components 34 are covered by the second filter component 33 inside the partition plate 3252 .

[0093] The guide component 34 includes a longitudinal tube body 341 and a curved tube body 342 connected thereto. The fluid inlet is located at the end of the longitudinal tube body 341 and faces the impeller chamber 325 . The fluid outlet is located at the top of the curved tube body 342 and faces the filter area in the second filter component 33 .

[0094] In this embodiment, a plurality of guide members 34 surround the outer side of the axis A and are arranged at equal intervals.

[0095] The end of the longitudinal tube body 341 is connected to the through hole opened on the partition plate 3252. Therefore, the airflow in the impeller cavity 325 can be guided to the interior of the guide component 34 through the through hole on the partition plate 3252 and the end of the longitudinal tube body 341, and then directly guided to the position of the filter area in the second filter component 33 through the fluid outlet of the curved tube body 342.

[0096] Since the fluid outlet of the bent tube body 342 faces the filtering area in the second filtering component 33 , the guiding path of the airflow inside the second filtering component 33 can be shortened.

[0097] In this embodiment, the second filter component 33 is made of Hepa filter.

[0098] When the airflow is guided by multiple guide components 34 to the inner area of ​​the filter Hepa and transmitted to the outside of the filter Hepa, the dust particles in the airflow are retained inside the filtering area of ​​the filter Hepa, so that the clean airflow is transmitted to the downstream area of ​​the filter Hepa, and is thereby guided to the rear side of the front end part.

[0099] The rear end portion includes a rear housing 4, a motor 41, a handle 5 and a power supply assembly 6. The handle 5 is located in the area between the rear housing 4 and the power supply assembly 6, and its top and end are connected to the rear housing 4 and the power supply assembly 6 respectively.

[0100] A release mechanism 61 is provided on the power supply assembly 6 , and the power supply assembly 6 can be connected to the handle 5 in a detachable manner through the release mechanism 61 .

[0101] Among them, the operating part 610 in the release mechanism 61 is located on the top end surface of the power supply component 6 and at the rear side of the handle 5. By pressing the operating part 610, the connection between the power supply component 6 and the handle 5 can be released, thereby separating the power supply component 6 from the handle 5.

[0102] The motor 41 is located in the motor cavity in the rear housing 4 and is located downstream of the second filter component 33. When the motor 41 is in operation, it continuously generates an inhaled airflow along the direction of the axis B. The inhaled airflow can guide the clean airflow separated by the second filter component 33 to the inside thereof, and then guide the clean airflow to the outside of the dust collection device through the exhaust end of the motor 41 and the exhaust holes 42 opened on the rear housing 4 in sequence, thereby completing the dust removal operation on the cleaning surface.

[0103] In addition, when the motor 41 is in operation, the continuous inhaled airflow generated along the direction of the axis B will sequentially pass through the second filter component 33, the plurality of guide components 34, and the through holes on the partition plate 3252 and enter the impeller cavity 325. When the continuous inhaled airflow contacts the plurality of blades in the transmission impeller, the transmission impeller will rotate along the axis A under the action of the continuous inhaled airflow. When the transmission impeller rotates along the axis A, the transmission impeller also drives the fan blades and the centrifugal filter component to rotate in the same direction along the axis A.

[0104] In this embodiment, the plurality of blades in the transmission impeller face toward its upper end surface, so as to facilitate contact with the continuous suction airflow generated by the motor 41 .

[0105] In this embodiment, the hair and other particles on the cleaning surface form a dust-containing airflow under the action of the guided airflow, and are guided to the outside of the dust collection device again through the suction pipe 1, the dust cup body 3, the filter screen 310, the middle area 3123, the air guide cover 313, the centrifugal filter component, the fan blades, the orifice plate 324, the impeller cavity 325, the guide component 34, the second filter component 33, the motor 41 and the exhaust hole 42. Among them, after the dust-containing airflow passes through the filter screen 310, the centrifugal filter component, the orifice plate 324 and the second filter component 33 in sequence, the hair and other particles in the dust-containing airflow are filtered out, and the hair and other particles are stored in the first dust storage area 35, the second dust storage area 36 and the second filter component 33 according to different types.

[0106] In addition, a blocking assembly is provided inside the dust cup body 3, which includes a matching second blocking portion 38 and a first blocking portion 37. The top end of the second blocking portion 38 is mounted on the bottom edge of the bracket portion 312, and the top end of the first blocking portion 37 is mounted on the inner wall surface of the dust cup body 3.

[0107] In this embodiment, the second blocking portion 38 and the first blocking portion 37 are both annular structures, and the first blocking portion 37 surrounds the outer side of the second blocking portion 38 .

[0108] The bottom ends of the first blocking portion 37 and the second blocking portion 38 are both free ends. The bottom end of the first blocking portion 37 is located below the bottom end of the second blocking portion 38 , and the bottom end of the second blocking portion 38 is located on the moving path of the bottom end of the first blocking portion 37 .

[0109] In this embodiment, the first blocking portion 37 includes a mounting portion 371 , an inclined portion 372 and a lower end portion 373 .

[0110] The lower end portion 373 is a free end.

[0111] The assembly portion 371 cooperates with the annular protrusion 39 provided on the inner wall surface of the dust cup body 3 to suspend the first blocking portion 37 inside the dust cup body 3. The liquid can be guided by the inclined portion 372 and the lower end portion 373 so that the liquid can be guided to the inside of the first dust storage area 35.

[0112] In addition, in this embodiment, the top end of the mounting portion 371 and the top end of the second blocking portion 38 are substantially in the same plane.

[0113] When the first blocking portion 37 is annularly arranged on the inner wall surface of the dust cup body 3 , it surrounds the outer side of the first filter assembly 31 and is located below the filter screen cover 310 .

[0114] When the dust-containing fluid (i.e., dust-containing liquid) is guided into the interior of the dust cup body 3 through the suction pipe 1 under the guidance of the airflow, most of the liquid in the dust-containing fluid and large particles such as hair separated from the filter screen cover 310 are respectively guided to the first dust storage area 35 located at the lower end of the dust cup body 3 through the blocking component, while a small part of the remaining liquid in the dust-containing fluid and small particles such as dust are guided to the downstream position of the filter screen cover 310 along with the airflow.

[0115] Before most of the liquid in the dust-containing fluid is guided into the first dust storage area 35, most of the liquid will first come into contact with the blocking component, thereby forming a buffering effect on most of the liquid, reducing the falling speed of most of the liquid, and preventing most of the liquid from splashing after being guided into the first dust storage area 35.

[0116] When a small portion of the remaining liquid and small particles such as dust come into contact with the centrifugal filter component through the guidance of the air guide cover 313, a small portion of the remaining liquid contacts and collides with the bottom end surface of the centrifugal filter component, and under the action of the collision, after passing through the air guide cover 313, it falls into the second dust storage area 36. After a small portion of the remaining liquid enters the second dust storage area 36, ​​it is guided to a position close to the annular plate 31221 through the annular bottom plate 31223 in the second dust storage area 36, ​​and is guided to the interior of the dust cup body 3 through the liquid guide hole a312231, the middle area 3123, the liquid guide hole b31201 and the filter screen cover 310 in turn, and then guided to the first dust storage area 35 through the blocking component, thereby completing the separation of liquid and gas.

[0117] When the bottom end face of the dust cup body 3 is facing downward, a reserved gap 374 is formed between the bottom end of the first blocking part 37 and the bottom end of the second blocking part 38, and the first dust storage area 35 forms an expanded cavity through the reserved gap 374. At this time, large particles such as hair separated from the dust-laden airflow, or large particles such as hair separated from the dust-laden fluid and most of the liquid pass through the reserved gap 374 to enter the interior of the first dust storage area 35.

[0118] When the bottom end of the dust cup body 3 rotates toward the area above it, at least a portion of the first blocking portion 37 and at least a portion of the second blocking portion 38 will follow the rotation of the dust cup body 3 and contact each other, thereby closing at least a portion of the reserved gap 374. Since the hair and other particles, and liquid in the first dust storage area 35 are located below the closed area, the hair and other particles, and liquid in the first dust storage area 35 can be prevented from overflowing to the outside of the first dust storage area 35.

[0119] The dust cup body 3 can be flipped forward, backward, left or right according to actual needs during the cleaning process, so that the bottom end surface of the dust cup body 3 can face the front position, the rear position, the left position or the right position. During the flipping process of the dust cup body 3, a part of the first blocking portion 37 and a part of the second blocking portion 38 will also contact with the flipping direction of the dust cup body 3 to close the reserved gap 374 at the corresponding position, thereby preventing particulate matter such as hair in the first dust storage area 35 and liquid from overflowing from the closed area.

[0120] When the bottom end surface of the dust cup body 3 is facing upward, the lower end portion 373 moves toward the bottom end position of the second blocking portion 38 and abuts against the bottom end of the second blocking portion 38 to close the reserved gap 374. The lower end portion 373, the second blocking portion 38 and the bottom end surface of the first filter assembly 31 facilitate forming the upper cover body of the first dust storage area 35, so that the first dust storage area 35 forms a closed cavity. At this time, large particles such as hair and liquid in the first dust storage area 35 will not be discharged from the gap between the first blocking portion 37 and the second blocking portion 38, which can prevent the liquid from overflowing from the inside of the first dust storage area 35 to the outside of the first dust storage area 35.

[0121] The above is only a preferred embodiment of the utility model, which is only illustrative and not restrictive of the invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the invention, but they will all fall within the scope of protection of the utility model.

Claims

1. An airflow guide assembly, characterized in that: The airflow guide component is located inside the second filter component, and a fluid outlet of the airflow guide component faces the filter area of ​​the second filter component.

2. The airflow guide assembly according to claim 1, characterized in that: The airflow guide assembly is composed of a plurality of guide components; The guide component includes a tube body, and a fluid inlet and a fluid outlet respectively located at both ends of the tube body, the fluid inlet is toward the upstream area of ​​the tube body, and the fluid outlet is toward the downstream area of ​​the tube body and faces the position of the filter area in the second filter component.

3. The airflow guide assembly according to claim 2, characterized in that: The tube body portion includes a longitudinal tube body and a curved tube body connected thereto, the fluid inlet is located at the end of the longitudinal tube body, and the fluid outlet is located at the top of the curved tube body and faces the filter area in the second filter component.

4. A vacuum cleaner, characterized in that: An airflow guide assembly comprising any one of claims 1 to 3.

5. The dust collection device according to claim 4, characterized in that: The dust suction device also includes a dust cup body, a front shell, a first filter assembly, an airflow guiding assembly, a rear shell, a motor and an airflow channel, the first filter assembly and a part of the airflow guiding assembly are located inside the dust cup body, the other part of the airflow guiding assembly, the airflow guiding assembly and the second filter component are located inside the front shell, the motor is located inside the rear shell, and the airflow guiding assembly, the airflow guiding assembly, the second filter component and the motor are located in the downstream area of ​​the first filter assembly in sequence.

6. The dust collection device according to claim 5, characterized in that: The first filter assembly is suspended inside the dust cup body and away from the bottom of the dust cup body; The first filter assembly includes a filter screen cover, a support structure, an air guide cover, a centrifugal filter component and a cone portion, the filter screen cover is sleeved on the outside of the support structure, the air guide cover and the centrifugal filter component are both located inside the support structure, and the air guide cover is located in the upstream area of ​​the centrifugal filter component, and the cone portion is located inside the air guide cover and connected to the air guide cover.

7. The dust collection device according to claim 6, characterized in that: The airflow guiding assembly comprises a transmission shaft, and a transmission component and an airflow guiding component sequentially sleeved thereon; The transmission component is sleeved on the outer side of the upper part of the transmission shaft and is located inside the front housing, and the airflow guide component and the centrifugal filter component are both sleeved on the outer side of the lower part of the transmission shaft and are located inside the dust cup body; The transmission component, the transmission shaft, the airflow guide component and the centrifugal filter component rotate along the direction of the axis A under the drive of the inhaled airflow.

8. The dust collection device according to claim 7, characterized in that: The airflow channel includes a first channel for guiding the airflow to the inside of the dust cup body along a guide path W, a second channel for guiding the airflow to the outside of the first filter component along a guide path X, a third channel for guiding the airflow to the inside of the second filter component along a guide path Y, and a fourth channel for guiding the airflow to the outside of the rear shell along a guide path Z; Wherein, the first channel, the second channel, the third channel and the fourth channel are connected in sequence.

9. The dust collection device according to claim 8, characterized in that: The first channel is located inside the suction pipe, the second channel is located inside the dust cup body, the third channel is formed by the first filter component, the airflow guide component and the airflow guide component, and the fourth channel is formed by the second filter component, the motor and the rear shell.

10. The dust collection device according to claim 9, characterized in that: The motor is located in the downstream area of ​​the second filter component and is arranged inside the rear housing, and the airflow is guided to the outside of the rear housing along the guide path Z; The motor generates a continuous inhaled airflow along the direction of axis B, which in turn passes through the second filter component and the airflow guide assembly, and then drives the airflow guide assembly to rotate along the direction of axis A.

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