CN210989974U - Air inlet blocking piece, dust cup assembly and dust collector - Google Patents

Abstract

The utility model relates to a separation blade, dirt cup subassembly and dust catcher admits air belongs to cleaning equipment technical field, has solved the problem that solves current separation blade and reduce dust collection efficiency. The air inlet baffle comprises an annular part and a plurality of baffle parts; the baffle part is connected with the annular part, and the joint of the baffle part and the annular part can be bent along the airflow direction and can be restored and bent along the airflow reverse direction; all the stopper portions can cover the inner circle of the annular portion. The air inlet baffle is composed of a plurality of independent baffle parts, and under the action of negative pressure suction, the baffle parts can be respectively bent towards the pipeline direction of the air inlet pipeline behind the air inlet baffle, so that the air inlet baffle can form a fluid air inlet to the maximum extent, dust-containing gas can conveniently pass through the air inlet baffle, and the dust collection efficiency can be improved; in addition, the spherical structure in the air inlet baffle sheet faces the air inlet pipeline, so that the baffle sheet can be bent relative to the annular part, and the dust blocking effect can be better achieved.

Description

Air inlet blocking piece, dust cup assembly and dust collector

Technical Field

The utility model relates to a cleaning equipment technical field especially relates to a separation blade, dirt cup subassembly and dust catcher admits air.

Background

In a conventional dust cup of a vacuum cleaner, dust in the dust cup is generally prevented from flowing backward into a suction pipe by a stopper which is located at the rear side of the suction pipe and covers the rear end surface of the suction pipe. However, since the conventional baffle adopts a complete sheet body, the self weight of the baffle is large, and when the negative pressure suction force is small, the diameter of the fluid inlet is too small, thereby reducing the dust collection efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention provides an air inlet baffle, a dust cup assembly and a dust collector, which are used to solve the problem that the existing baffle reduces the dust collection efficiency.

The purpose of the utility model is mainly realized through the following technical scheme:

the technical scheme of the utility model provides an air inlet baffle, which comprises an annular part and a plurality of baffle parts; the baffle part is connected with the annular part, and the joint of the baffle part and the annular part can be bent along the airflow direction and can be restored and bent along the airflow reverse direction;

all the stopper portions can cover the inner circle of the annular portion.

In the technical scheme of the utility model, the baffle part comprises a baffle and a connecting part, and the baffle is connected with the inner edge of the annular part through the connecting part; at least one of the baffle sheet and the connecting part is an elastic component.

The utility model discloses among the technical scheme, separation blade and connecting portion structure as an organic whole are equipped with the gap between two adjacent separation blades.

The utility model discloses among the technical scheme, all separation blades form spherical crown shell structure, and the side of admitting air of the separation blade that admits air is spherical crown shell structure's interior concave surface, and the play gas side of the separation blade that admits air is spherical crown shell structure's outer convex surface.

The utility model discloses among the technical scheme, be equipped with through-hole portion between the connecting portion of two adjacent separation blades.

In the technical proposal of the utility model, 4 baffle plates are provided; the projection of the baffle plate on the plane of the annular part is 1/4 circles.

In the technical scheme of the utility model, the dust cup component comprises a cup body, an air inlet pipeline and an air inlet baffle plate; the air inlet baffle plate is the air inlet baffle plate in the technical scheme of the utility model;

the air inlet baffle is arranged at the air inlet of the air inlet pipeline or between the air inlet and the air outlet of the air inlet pipeline; the air outlet of the air inlet pipeline is communicated with the inside of the cup body.

In the technical scheme of the utility model, the dust cup component also comprises a front end part of the dust cup, and the front end part of the dust cup is arranged at the upstream of the cup body in the airflow direction;

the front end part of the dust cup is provided with an air inlet port which axially penetrates through the front end part of the dust cup;

the annular part of the air inlet baffle plate is clamped between the rear end surface of the air inlet port and the air inlet of the air inlet pipeline.

In the technical scheme of the utility model, at least one of the front end part of the dust cup and the air inlet pipeline is provided with a fixed bulge structure; the fixed bulge structure is matched with the through hole part in an inserting way.

In the technical scheme of the utility model, the air inlet pipe comprises a first pipeline and a second pipeline, and the second pipeline is communicated with the inside of the cup body; the annular part of the air inlet baffle plate is clamped between the rear end face of the first pipeline and the front end face of the second pipeline.

The utility model discloses among the technical scheme, at least one of the preceding terminal surface of the rear end face of first pipeline and second pipeline is equipped with fixed protruding structure, fixed protruding structure with the cooperation of pegging graft of through-hole portion.

The utility model discloses among the technical scheme, the inside dust collecting space that is equipped with of cup is equipped with a plurality of dust blocking pieces on the inner wall in dust collecting space.

The technical scheme of the utility model provides a dust catcher, the dust catcher includes the utility model discloses above-mentioned technical scheme's dirt cup subassembly.

The utility model discloses technical scheme can realize one of following effect at least:

1. the utility model adopts a plurality of independent baffle plates to shield the air inlet channel, and under the action of negative pressure suction, a plurality of baffle plates can be respectively bent towards the pipeline direction of the air inlet pipeline behind the baffle plates, so that the air inlet baffle plates can form a fluid air inlet to the maximum extent, dust-containing gas can conveniently pass through, and the dust collection efficiency can be improved;

2. the utility model discloses a separation blade adopts spherical surface structure, and the separation blade of being convenient for can buckle for cyclic annular portion to play the dust blocking effect that can be better, can also further make the separation blade laminating air inlet pipe way after buckling, further increase the air output, thereby further improve dust collection efficiency.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a schematic structural view of a dirt cup assembly of embodiment 3;

FIG. 2 is a schematic view of the dust cup assembly of example 3 with the cyclone cone cover plate pressed;

FIG. 3 is a schematic view of the dirt cup assembly of example 3 with the cyclone cone cover plate slid down;

FIG. 4 is a schematic view of the construction of the secondary cyclone unit of the dirt cup assembly of embodiment 3;

FIG. 5 is a schematic vertical sectional view of the secondary cyclone unit of the dirt cup assembly of example 3;

FIG. 6 is a schematic structural view of an air inlet baffle of embodiment 1;

fig. 7 is a schematic perspective view of an air intake flap according to embodiment 1;

FIG. 8 is a schematic structural view of a dirt cup assembly of embodiment 3;

figure 9 is an exploded view of the dirt cup assembly of example 3;

FIG. 10 is a cross-sectional view of the dirt cup assembly of embodiment 3;

figure 11 is an enlarged partial view of the inlet baffle of the dirt cup assembly of embodiment 3.

Reference numerals:

1-cup body; 101-dust blocking sheet; 2-a primary cyclone unit; 201-a screen cylinder; 202-an air guide structure; 203-cyclone cone cover plate; 204-a sleeve; 205-a chute; 206-ash throwing port; 3-a secondary cyclone unit; 30-air inlet cone; 31-cyclone cone; 301-cyclone cone; 302-a grid; 303-circular baffle plate; 304-a vent-tube; 4-an air inlet pipeline; 401-a first conduit; 402-a second conduit; 403-a slider; 5-a filter pad; 6-air inlet blocking piece; 601-baffle plate; 602-a connecting portion; 603-a ring portion; 604-a via portion; 605-a gap; 7-the front end of the dust cup; 701 — intake port.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

Example 1

The existing dust cup of the dust collector adopts a whole piece of flaky baffle 601 to prevent dust in the dust cup from flowing backwards, and during dust collection, the baffle 601 is difficult to be completely opened, so that the air inflow is reduced, and the dust collection effect is influenced; in addition, the baffle plate 601 is arranged at the connection position of the air inlet pipe and the cyclone space of the dust cup, and the opened baffle plate 601 can influence the air flow in the dust cup, so that the formation of the cyclone or the flow of the cyclone is influenced, and the dust collection effect can be reduced; the whole sheet-like baffle 601 is usually made of square rubber, and is difficult to prevent dust from flowing backwards due to aging and deformation after long-term use. The embodiment of the utility model is provided with four rotatable baffle plates 601, so that the dust collector can be tightly attached to the inner wall of the air inlet pipeline 4, the influence on the ventilation volume is avoided as much as possible, and the smooth flow of the air flow is ensured; in addition, the baffle plate 601 is arranged at the air inlet of the air inlet pipeline 4, so that the influence of the baffle plate 601 on the cyclone can be avoided, and the dust removal effect is improved; even if the elasticity of the baffle 601 with the spherical shape is lowered due to aging, the baffle 601 with the spherical shape can not be obviously deformed, and dust can be prevented from flowing backwards.

Specifically, as shown in fig. 6 and 7, the embodiment of the present invention provides an air inlet baffle, the air inlet baffle 6 includes an annular portion and a plurality of baffle portions, and the annular portion 603 serves as a carrier of the baffle portions and is fixedly connected to other components, so as to implement installation of the whole air inlet baffle 6. The baffle part is connected with the annular part, the joint of the baffle part and the annular part can be bent along the airflow direction and can be restored and bent along the airflow reverse direction, and all the baffle parts can cover the inner circle of the annular part. When the airflow passes through the annular part, the baffle plate part is bent along with the airflow, and the center of the annular part is almost completely opened, so that the smooth airflow is ensured; when no air current flows, the blocking piece portion is bent again, the blocking piece portion blocks the inner ring of the annular portion, and dust can be prevented from flowing backwards.

Considering that the connection part of the blocking piece part and the annular part can be bent along the airflow direction and can be restored to be bent along the airflow direction, in the embodiment of the present invention, the blocking piece part includes a blocking piece 601 and a connecting part 602, and the blocking piece 601 is connected with the inner edge of the annular part through the connecting part 602; at least one of the stopper 601 and the connecting portion 602 is an elastic member, which can ensure that the stopper is bent and can also ensure that the stopper is bent again. The elastic member is not limited, and may be a polymer material such as rubber, for example.

In order to make the separation blade 601 can buckle smoothly, can not interfere between separation blade 601 and the separation blade 601, the embodiment of the utility model provides an, separation blade 601 and connecting portion 602 structure as an organic whole are equipped with gap 605 between two adjacent separation blades 601, because separation blade 601 does not directly link to each other with cyclic annular portion to it is regional to reserve gap 605 between two adjacent separation blades 601, separation blade 601 can buckle smoothly for cyclic annular portion.

In order to make the separation blade 601 bend along the airflow direction more easily and make airflow channel open as far as possible, in the embodiment of the utility model, all separation blades 601 form spherical crown shell structure: the air inlet side of the air inlet baffle 6 is an inner concave surface of the spherical crown shell structure, when air flow flows, the baffle 601 is pushed from the inner side of the spherical crown shell structure, and the baffle 601 can be easily bent and opened; the gas outlet side of the air inlet baffle plate 6 is an outer convex surface of a spherical crown shell structure, when dust flows backwards in the opposite direction of air flow, the baffle plate 601 is pushed from the outer side of the spherical crown shell structure, a gap 605 between the baffle plates 601 is compressed, the dust can be prevented from passing through the air inlet baffle plate 6, and as the outer side of the spherical surface can bear larger thrust, even if the dust is more, the baffle plate 601 can not be bent reversely to be opened, and the dust blocking effect can be better played.

Consider that the embodiment of the present invention needs to be installed in the ventilation pipeline, and the ventilation pipeline is usually a round pipe, and when the number of the blocking piece parts is small, the connecting part 602 is arc-shaped, and can affect the bending of the blocking piece 601. In order to solve the above problem, the embodiment of the utility model provides an in, be equipped with through-hole portion 604 between the connecting portion 602 of two adjacent fender portions, through-hole portion 604 can shorten the length of connecting portion 602, shorten to certain extent just can regard as the straightway approximately when the arc length, and make the separation blade 601 buckle more easily, through the test, the central angle that connecting portion 602 corresponds should not be higher than 45, the rear end face of separation blade 601 can more press close to the pipe wall that is located the inlet line 4 of its rear end, make inlet blade 6 can be furthest's a fluid air inlet of formation. The through hole part 604 is used for installing and positioning the air inlet baffle 6, a fixing protrusion structure matched with the through hole part 604 is arranged on the vent pipeline, and the fixing protrusion structure is inserted into the through hole part 604 during installation, so that circumferential fixing of the air inlet baffle 6 can be realized. Illustratively, the through hole portion 604 is an arc-shaped straight hole whose circumferential direction is parallel to the circumferential direction of the intake baffle 6, and the corresponding fixing protrusion structure is an arc-shaped boss.

Consider the utility model discloses in the embodiment, leave gap 605 between the separation blade 601, but if the too much area of gap 605 of separation blade 601 number can increase, and then increased the risk of flowing backward in city, and if the number of separation blade 601 is too little, the length overlength of connecting portion 602 just can't ignore the influence that curved connecting portion 602 buckled to separation blade 601. In the embodiment of the utility model, the number of the baffle plate parts is 4; the projection of the baffle 601 on the plane of the annular part is 1/4 circles, and the gaps 605 between 4 baffles 601 form a cross-shaped structure, which is more convenient for the baffles to bend towards the pipe wall of the air inlet pipeline 4.

Example 2

The embodiment of the utility model provides a dust cup component, which comprises a cup body, an air inlet pipeline 4 and an air inlet baffle 6; the air inlet baffle 6 is the air inlet baffle 6 in the embodiment 1; between the air inlet and the air outlet of the air inlet pipeline 4; the air outlet of the air inlet pipeline 4 is communicated with the inside of the cup body. The embodiment of the utility model provides a do not have the separation blade 6 that will admit air and set up in the gas outlet department of air inlet pipeline 4, can avoid influencing the production and the flow of the interior whirlwind air current of cup to the separation blade 601 of buckling in the cup when the air current flows, further improve the suction capacity of dust catcher. The baffle part is bent towards the pipe wall direction of the air inlet pipeline 4 under the use of negative pressure suction force, and fluid enters the cup body through the air inlet pipeline 4 and is filtered through the cyclone filtering component.

In order to axially fix the air inlet baffle 6, in the embodiment of the utility model, the air inlet pipe comprises a first pipeline and a second pipeline, and the second pipeline is communicated with the inside of the cup body; the annular portion of the intake baffle 6 is interposed between the rear end surface of the first pipe and the front end surface of the second pipe.

In order to carry out circumference fixedly to the air inlet separation blade 6, in the embodiment of the present invention, at least one of the rear end face of the first pipeline and the front end face of the second pipeline is provided with a fixing protrusion structure, the fixing protrusion structure is in plugging fit with the through hole portion 604, exemplarily, the front end face of the second pipeline is provided with the fixing protrusion structure.

During operation of the vacuum cleaner, dirt and dust may be expelled from the dirt cup assembly with the airflow or clog the filter assembly at the dirt cup assembly air outlet. The embodiment of the utility model provides an in, the inside dust collecting space that is equipped with of cup is equipped with a plurality of dust blocking sheet 101 on the inner wall in dust collecting space. The dust blocking sheet 101 prevents particles of dust, etc. placed in the dust collecting space from flowing toward the cyclone filter assembly area by the negative pressure suction force, so that they are placed in the first dust collecting space.

Example 3

The embodiment of the utility model provides a concrete structure to dirt cup subassembly is injectd.

As shown in FIG. 1, the dirt cup assembly includes: cup 1, primary cyclone unit 2, second grade cyclone unit 3 and air inlet pipeline 4. Cup 1's main part is cylindrical, and air inlet pipeline 4 sets up the bottom surface at cup 1, and air inlet pipeline 4 penetrates cup 1 inside and passes one-level whirlwind unit 2, and air inlet pipeline 4 is through getting rid of grey mouth 206 and cup 1's inside intercommunication. The primary ash storage chamber I is arranged below the primary cyclone unit 2, and illustratively, the bottom surface of the primary cyclone unit 2, the air inlet pipeline 4 and the cup body 1 form the primary ash storage chamber I; the secondary cyclone unit 3 is arranged inside the primary cyclone unit 2; the secondary ash storage chamber II is arranged below the secondary cyclone unit 3, and exemplarily, the secondary cyclone unit 3, the air inlet pipeline 4 and the primary cyclone unit 2 form the secondary ash storage chamber II; the first-level ash storage chamber I is positioned below the second-level ash storage chamber II.

In the embodiment of the utility model, air containing dust enters the dust cup component of the embodiment of the utility model from the air inlet pipeline 4, enters the primary dust storage chamber I through the dust throwing port 206, forms cyclone in the primary dust storage chamber I through the primary cyclone unit 2 and carries out primary cyclone dust removal; large-particle dust or foreign matters separated from air in the primary cyclone dust removal process are directly stored in a primary dust storage chamber I; the air dedusted by the primary cyclone enters the primary cyclone unit 2, forms cyclone in the secondary ash storage chamber II through the secondary cyclone unit 3, and is subjected to secondary cyclone dedusting; in the secondary cyclone dust removal process, small particle dust or foreign matters separated from air are directly stored in a secondary dust storage chamber II; the air dedusted by the secondary cyclone enters the primary cyclone unit 2 and is discharged from the air outlet of the dust cup.

Consider that one-level ash storage room I and second grade ash storage room II are relatively independent, and it is relatively troublesome when clearing up the dust in one-level ash storage room I and the second grade ash storage room II, as shown in fig. 2, fig. 3, the embodiment of the utility model provides an in, the bottom surface of one-level whirlwind unit 2 is cone portion apron 203, is equipped with sliding structure between cone portion apron 203 and the air inlet pipeline 4, and cone portion apron 203 can be through the lateral wall separation of slip with one-level whirlwind unit 2. When needs clearance dust, only need take out one-level whirlwind unit 2 from the dirt cup, owing to receive the effect of gravity cone portion apron 203 and pass through sliding structure lapse for one-level ash storage room I and second grade ash storage room II intercommunication, all dusts can all fall into the bottom of cup 1 promptly, directly topple over the dust and can accomplish the clearance to dirt cup subassembly, and is simple and convenient.

In order to prevent the cone cover plate 203 from sliding down due to gravity and separating from the side wall of the primary cyclone unit 2 when the embodiment of the present invention is used, in the embodiment of the present invention, the air inlet pipeline 4 includes a first pipeline 401 and a second pipeline 402; the first pipeline 401 is a straight pipe, one end of the straight pipe is fixedly connected with an air inlet on the bottom surface of the cup body 1, and the other end of the straight pipe abuts against one end of the second pipeline 402; the second pipeline 402 is a bent pipeline and is positioned in the primary cyclone unit 2; one end of the second pipeline 402 is fixedly connected with the ash throwing port 206 on the side wall of the primary cyclone unit 2, and the other end of the second pipeline is abutted against one end of the first pipeline 401; the air inlet pipeline 4 is communicated with the inside of the cup body 1 through an ash throwing port 206; the axis of the ash slinger 206 is perpendicular to the axis of the cup 1. When one-level whirlwind unit 2 is installed in cup 1, one-level whirlwind unit 2 can compress tightly second pipeline 402 downwards, makes second pipeline 402 support cone portion apron 203, compresses tightly cone portion apron 203 and one-level whirlwind unit 2's lateral wall, guarantees that the air in the one-level ash storage chamber I can only get into one-level whirlwind unit 2 through the whirlwind structure of one-level whirlwind unit 2, guarantees the efficiency of one-level whirlwind dust removal.

As shown in fig. 2 and 3, in the embodiment of the present invention, the cone cover plate 203 is provided with a sleeve 204, and the sleeve 204 is sleeved outside the first pipeline 401; the sliding structure comprises a sliding groove 205 and a sliding block 403; the slide groove 205 is provided on the sleeve 204 in the vertical direction, and the slider 403 is provided outside the sleeve 204. Set up sliding construction between cone portion cover plate 203's sleeve 204 and first pipeline 401, can do not go to occupy the space of one-level ash storage room I as far as possible, because sliding construction sets up on first pipeline 401's outer wall, can not influence the whirlwind rotation in the one-level ash storage room I yet.

In order to prevent the cone cover plate 203 from falling off from the primary cyclone unit 2 when sliding downwards, in the embodiment of the present invention, the top end of the sliding groove 205 is provided with a limiting structure for preventing the sliding block 403 from slipping, and the limiting structure may be, for example, a non-grooved portion of the stopper, the baffle, or the sleeve 204.

In consideration of the fact that the embodiment of the present invention adopts twice cyclone dust removal, in order to make full use of the space inside the dust cup assembly as much as possible, as shown in fig. 4 and 5, in the embodiment of the present invention, the cyclone structure of the primary cyclone unit 2 is arranged below the dust-throwing port 206; the bottom surface of the primary cyclone unit 2, the air inlet pipeline 4 and the cup body 1 form a primary ash storage chamber I; the secondary cyclone unit 3 is arranged inside the primary cyclone unit 2; the secondary cyclone unit 3, the air inlet pipeline 4 and the primary cyclone unit 2 form a secondary ash storage chamber II; the first-level ash storage chamber I is positioned below the second-level ash storage chamber II. The structure setting about one-level ash storage room I and second grade ash storage room II adopt can make full use of the inside circumference space of dirt cup for the rotation of air is more smooth, and the suction of production is bigger, can obviously improve dust absorption, the dust removal effect of dust catcher.

In order to further utilize the space inside the dust cup assembly, as shown in fig. 2 and 3, in the embodiment of the present invention, the portion of the sidewall of the primary cyclone unit 2 below the dust-throwing port 206 is the filter screen cylinder 201; the air flow entering the cup 1 through the ash slinger 206 enters the primary cyclone unit 2 through the screen cylinder 201. The primary cyclone unit 2 is internally provided with a wind guide structure 202 for guiding the airflow entering the primary cyclone unit 2 to the secondary cyclone unit 3; the air guide structure 202 is fixedly connected with the filter screen cylinder 201. The embodiment of the utility model provides an increased the proportion of filter screen as far as possible, can guarantee great air current route flow, and then make the dust catcher possess great suction force.

Since the dust slinger 206 causes the upper half of the primary cyclone unit 2 to be a non-revolving body, if a filter is also provided, the rotation of air is adversely affected. For the same reason, as shown in fig. 5, in the embodiment of the present invention, a plurality of cyclone structures of the secondary cyclone unit 3 are provided and are circumferentially arranged around the axis of the cup body 1; the airflow guided to the secondary cyclone unit 3 flows to the air outlet of the cup body 1 through the secondary cyclone unit 3; the bent portion of the second duct 402 passes between some two adjacent secondary cyclone units 3. The non-revolving region in the primary cyclone separation unit can be fully utilized.

For the dust cup with two-time cyclone separation, the second-time cyclone separation is usually used for separating fine dust in air, but the fine dust is easy to enter the secondary cyclone unit 3 from the secondary dust storage chamber II due to light weight and block the filter pad 5 at the air outlet of the dust cup, and finally the airflow is not smooth. In the embodiment of the utility model provides an in, second grade whirlwind unit includes the whirlwind structure that comprises whirlwind cone 31 and air inlet cone 30, and air inlet cone 30 is equipped with cone 301, and cone 301 is equipped with lattice structure 302. The grid structure 302 can ensure smooth airflow, can effectively block dust, and prevents the dust from entering the cone part 301 from the second-stage dust storage chamber II.

In order to further prevent dust in the secondary dust storage chamber II from entering the cone portion 301, in the embodiment of the present invention, the cone portion 301 comprises a conical wall surface and a circular baffle 303 disposed at the bottom of the conical wall surface, and the grid structure 302 is disposed on the conical wall surface and/or the circular baffle 303. The circular baffle 303 at the lower end of the cone 301 can effectively block dust from entering the cone 301 from the secondary dust storage chamber II through the lower end of the cone 301.

In order to ensure that the secondary cyclone unit 3 generates the cyclone smoothly and has a relatively large airflow, in the embodiment of the present invention, the grid structure 302 is an air inlet groove disposed on the conical wall surface of the cone portion 301 along the direction from the upper end to the lower end of the cone portion 301; the air inlet grooves are arranged in a plurality of numbers, so that the secondary cyclone unit 3 can have larger airflow flow to improve the suction force of the dust collector; the air inlet grooves are circumferentially and uniformly arranged on the conical wall surface of the cone part 301, so that the secondary cyclone unit 3 can generate stable cyclone, and the cyclone dust removal effect is improved.

In order not to have too much dust to pour into second grade whirlwind unit 3 even the dirt cup subassembly is invertd yet, the embodiment of the utility model provides an in, air inlet cone 30 still is equipped with columniform ventilation pipe 304, the top of ventilation pipe 304 and cup 1's gas outlet intercommunication, the bottom of ventilation pipe 304 links firmly with the top of cone portion 301. Even if the dust cup assembly is inverted, dust can fall to the corresponding area outside the ventilation pipe 304 and cannot enter the air inlet groove, so that the dust in the secondary dust storage chamber II is further prevented from rising to enter the secondary cyclone unit 3, and the filter pad 5 is further prevented from being blocked or filled with the dust.

Considering cyclone's efficiency can be less than 100% usually, the embodiment of the utility model provides an in, the gas outlet is equipped with the filter pad 5 that can cover whole gas outlet, and all air through second grade cyclone are all carried out further dust through filter pad 5 and are filtered, can make the utility model discloses the dust storage efficiency of dirt cup subassembly is close 100%.

As shown in fig. 3 and 4, in the embodiment of the present invention, the filter pad 5 is disposed in the top cover of the cup body 1, the primary cyclone unit 2 is compressed in the cup body 1 through the top cover, the top cover is provided with a handle, and the top cover can be lifted by lifting the handle.

For the convenience of the utility model discloses an installation of dirt cup subassembly, as shown in fig. 5, in the embodiment of the utility model, the top surface of cup 1 is the acute angle with the contained angle of cup 1's axis, and the top surface of slope can play the effect of adjusting well when installing dirt cup subassembly on the dust catcher.

As shown in fig. 8, 9, 10 and 11, the dirt cup assembly further includes an air inlet baffle 6, and the air inlet baffle 6 is the air inlet baffle 6 in embodiment 1; the air inlet baffle 6 is arranged at the air inlet of the air inlet pipeline 4; the air outlet of the air inlet pipeline 4 is communicated with the inside of the cup body. The embodiment of the utility model provides a do not have the separation blade 6 that will admit air and set up in the gas outlet department of air inlet pipeline 4, can avoid influencing the production and the flow of the interior whirlwind air current of cup to the separation blade 601 of buckling in the cup when the air current flows, further improve the suction capacity of dust catcher.

In order to facilitate the installation of the dust cup assembly, the dust cup assembly of the embodiment of the utility model further comprises a dust cup front end part 7, the dust cup front end part 7 is arranged at the upstream of the cup body in the airflow direction, namely at the air inlet of the air inlet pipeline 4, and in order to facilitate the installation of the dust cup front end part 7, the air inlet of the air inlet pipeline 4 is flush with the bottom surface of the cup body; the front end part 7 of the dust cup is provided with an air inlet port 701 which axially penetrates through the front end part 7 of the dust cup, so that air flow enters the cup body through the air inlet port 701 and the air inlet pipeline 4 in sequence; the annular portion of the air inlet baffle 6 is clamped between the rear end face of the air inlet port 701 and the air inlet of the air inlet pipeline 4, so that the air inlet baffle 6 is axially fixed.

In order to circumferentially fix the air inlet baffle 6, in the embodiment of the present invention, at least one of the front end portion 7 of the dust cup and the air inlet pipeline 4 is provided with a fixing protrusion structure; the fixing protrusion is inserted into the through hole 604. Illustratively, the air inlet of the air inlet pipeline 4 is provided with a fixed convex structure.

During operation of the vacuum cleaner, dirt and dust may be expelled from the dirt cup assembly with the airflow or clog the filter assembly at the dirt cup assembly air outlet. The embodiment of the utility model provides an in, the inside collection dirt space of cup, one-level ash storage chamber I promptly is equipped with a plurality of dust blocking sheets 101 on the inner wall, can prevent through dust blocking sheets 101 to arrange particulate matters such as dust in one-level ash storage chamber I in under the effect of negative pressure suction to whirlwind filtering component's regional flow, makes it arranged one-level ash storage chamber I in.

In the clearance the utility model discloses during the dirt cup subassembly, directly take off the top cap, one-level whirlwind unit 2 is pulled down along with top cap one-way, and cone portion apron 203 slips down simultaneously, and one-level ash storage room I and second grade ash storage room II intercommunication directly clear up the dust, whole process is simple and convenient.

Example 4

The embodiment of the utility model provides a dust collector, dust cup subassembly of dust collector adopts the dirt cup subassembly in embodiment 2 or embodiment 3.

To sum up, the embodiment of the present invention provides an air inlet blocking piece, a dust cup assembly and a dust collector, the present invention adopts a plurality of independent blocking pieces 601 to block an air inlet channel, and under the action of negative pressure suction, a plurality of blocking pieces can be respectively bent towards the pipeline direction of the air inlet pipeline 4 behind the blocking pieces, so that the air inlet blocking piece 6 can form a fluid air inlet to the maximum extent, which is convenient for dust-containing gas to pass through, and can improve dust collection efficiency; the utility model discloses a separation blade 601 adopts spherical structure, and the separation blade 601 of being convenient for can buckle for cyclic annular portion to play the dust blocking effect that can be better, can also further make the separation blade 601 laminating air inlet pipe way 4 after buckling, further increase the air output, thereby further improve dust collection efficiency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (13)

1. An inlet baffle, characterized in that the inlet baffle (6) comprises an annular portion and a plurality of baffle portions; the baffle part is connected with the annular part and can be bent along the airflow direction and restored and bent along the airflow reverse direction;

all the stopper portions can cover the inner circle of the annular portion.

2. The intake flap of claim 1, characterized in that the flap portion comprises a flap (601) and a connecting portion (602), the flap (601) being connected to the inner edge of the ring-shaped portion by the connecting portion (602); the blocking piece (601) and/or the connecting part (602) are elastic components.

3. The intake baffle of claim 2, wherein the baffles (601) and the connecting portion (602) are of an integral structure, and a gap (605) is provided between two adjacent baffles (601).

4. The intake flap of claim 3, characterized in that all the flaps (601) form a spherical crown shell structure, the intake side of the intake flap (6) being the concave inner surface of the spherical crown shell structure and the outlet side of the intake flap (6) being the convex outer surface of the spherical crown shell structure.

5. The intake baffle of any one of claims 2 to 4, wherein a through-hole portion (604) is provided between the connecting portions (602) of two adjacent baffle portions.

6. The intake baffle of claim 5, wherein the baffle (601) is provided with 4; the projection of the baffle plate (601) on the plane of the annular part is 1/4 circles.

7. A dirt cup assembly, characterized in that the dirt cup assembly comprises a cup body, an air inlet pipe (4) and an air inlet baffle (6); the air inlet baffle (6) is the air inlet baffle of claim 5 or 6;

the air inlet baffle plate (6) is arranged at an air inlet of the air inlet pipeline (4) or between the air inlet and the air outlet of the air inlet pipeline (4); and the air outlet of the air inlet pipeline (4) is communicated with the inside of the cup body.

8. The dirt cup assembly of claim 7, further comprising a dirt cup front end (7), the dirt cup front end (7) being disposed upstream of the cup body in the airflow direction;

the front end part (7) of the dust cup is provided with an air inlet (701) which penetrates through the front end part (7) of the dust cup along the axial direction of the dust cup component;

the annular part of the air inlet baffle plate (6) is clamped between the rear end face of the air inlet port (701) and an air inlet of the air inlet pipeline (4).

9. The dirt cup assembly of claim 8, wherein the dirt cup front end (7) and/or the air inlet duct (4) is provided with a fixing projection arrangement; the fixed protruding structure is matched with the through hole part (604) in an inserting mode.

10. The dirt cup assembly of claim 7, wherein the air inlet conduit comprises a first conduit and a second conduit, the second conduit communicating with the interior of the cup body; and the annular part of the air inlet baffle plate (6) is clamped between the rear end surface of the first pipeline and the front end surface of the second pipeline.

11. The dirt cup assembly of claim 10, wherein the rear end surface of the first conduit and/or the front end surface of the second conduit is provided with a securing protrusion structure that is in plug-fit engagement with the through-hole portion (604).

12. The dirt cup assembly of claim 9 or 10, wherein a dirt collection space is provided within the cup body, and a plurality of dust flaps (101) are provided on an inner wall of the dirt collection space.

13. A vacuum cleaner, characterized in that it comprises a dirt cup assembly according to any one of claims 7 to 12.

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