CN215820769U - Dust collector - Google Patents

Abstract

The utility model relates to a dust collector, which is provided with a dust suction cavity with a downward opening at the front side of the traveling direction of a floor brush, the top of a connecting piece is provided with a pipe orifice with an upward opening, different forces can be applied to a handheld part when the dust collector moves forward or backward, the connecting piece connected with the handheld part swings back and forth correspondingly while the floor brush moves forward or backward, as a wheel assembly is linked with the connecting piece, the wheel assembly correspondingly moves downward when the connecting piece swings forward, so that the bottom wall of the floor brush inclines downward from back to front, a first gap for the entry of sundries and dust is formed between the bottom wall of the floor brush and the ground to be cleaned, and the rear side of the dust collector is ensured to have enough space for the dust and sundries to be sucked into the dust suction cavity when the dust collector moves to all directions, once part of the sundries and dust are leaked, the dust can be sucked by operating the dust collector to retreat without reversing the direction.

Description

Dust collector

Technical Field

The utility model relates to the field of dust removing equipment, in particular to a dust collector.

Background

In the existing negative pressure cleaning equipment, such as a sweeping robot, a handheld dust collector and the like, the traveling direction of the equipment is defaulted to be the cleaning direction of the equipment, namely, cleaning suction openings of the cleaning equipment are all located on the front side of the traveling direction, so that the cleaning effect is good when the equipment moves forwards, and the dust removal effect is often poor when the equipment moves reversely. In the cleaning process, lost sundries and dust can appear in many times, so that the equipment is required to turn around and then walk along the original route once again, and the cleaning process is very inconvenient.

For this reason, chinese utility model patent No. cn201210342193.x discloses a "dust collector floor brush with double suction openings", which has a front suction opening and a rear suction opening in the front and rear of a base, respectively, and a flow guide hole in the downstream of an air inlet, and an air flow passage in the upstream of the flow guide hole is formed between an upper fan cover and a lower fan cover. Through the setting of two suction inlets in front and back, solved current scrubbing brush and retreated unable clean or clean the unsatisfactory problem of effect. This double suction port design still has certain drawbacks. On one hand, the rear suction port destroys the original structure of the whole air duct design, and the channel matched with the rear suction port occupies the air suction flux of the total air suction channel to influence the dust collection effect of the front suction port; on the other hand, the rear suction port is only moved backwards relative to the front suction port, the ground clearance of the whole machine is not changed, and dust and impurities which cannot be sucked in the process of advancing still cannot be sucked smoothly after retreating.

The chinese utility model with the patent number CN200580004495.4 discloses a "ground dust absorption mouth for dust collector" all is equipped with the shelves strip at the front end and the rear end of gyro wheel (4) in this scrubbing brush (1), and it advances or retreats, can make the shelves strip that corresponds shift up, and then makes the suction inlet down originally, forms the side seam at front side or rear side to be convenient for carry out the dust removal repeatedly of back-and-forth movement from the position that the side seam department was difficult for removing dust such as carpet. But the design of the dust suction port which is changed up and down has better dust suction effect on flexible surfaces such as carpets and the like, but the dust suction effect on sundries on the ground is not good, and the dust suction port still does not accord with the conventional dust removal environment.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a dust collector which can effectively remove dust at the rear of a shell when the dust collector retreats against the current situation of the prior art.

The second technical problem to be solved by the utility model is to provide a dust collector which can automatically realize the lifting or lowering of the rear part of the shell by means of the swinging of the connecting piece, aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: this dust catcher includes:

the front side of the ground brush in the advancing direction is provided with a dust suction cavity with a downward opening;

a connecting piece for connecting the hand-held part of the dust collector to the ground brush, wherein the top of the connecting piece is provided with a pipe orifice part with an upward opening and into which the bottom of the hand-held part is inserted;

the wheel assembly is arranged at the rear part of the floor brush and is provided with a supporting wheel which can rotate relative to the floor brush, and the rotating axis of the supporting wheel is vertical to the advancing direction of the floor brush;

the bottom of the connecting piece is constrained on the floor brush in a front-back swinging mode, the power input end of the wheel assembly is connected to the position, close to the bottom, of the connecting piece, and then moves up and down relative to the floor brush under the front-back swinging action of the bottom of the connecting piece.

In order to further realize the up-and-down movement of the connecting piece driving wheel component, preferably, the floor brush is provided with a shell, the rear part of the shell is hollow to form a mounting cavity, the connecting piece is arranged in two sides of the traveling direction of the floor brush, one wheel component is correspondingly arranged on each side, the wheel component comprises a wheel seat positioned in the mounting cavity and a mounting shaft connected to the wheel seat, the mounting shaft at least partially leaks out of the shell, and the supporting wheel is assembled on the mounting shaft.

In order to facilitate the swinging of the connecting piece, preferably, the bottom wall of the mounting cavity is provided with two guide ribs extending along the connecting piece, the two guide ribs are oppositely arranged on two sides of the swinging direction of the connecting piece, and correspondingly, the two sides of the swinging direction of the connecting piece are respectively provided with a guide part which extends laterally and is matched with the corresponding guide rib.

Specifically, the guide part is protruding to be located the boss of connecting piece outer wall face, set up opening breach portion up on the direction muscle, the boss holding is in the breach portion, just the length of breach portion on the connecting piece swing direction is greater than the diameter of boss.

In order to further solve the second technical problem, the utility model adopts the following technical scheme: the boss is further provided with a first transmission part, each first transmission part is provided with a second transmission part matched with the boss on the wheel seat corresponding to the boss, and the wheel seat and the supporting wheel are linked with the connecting piece through the matching of the first transmission part and the second transmission part.

Specifically, the connecting piece is the tube-shape basically, first transmission portion is for locating on the boss and the projection of lateral extension, second transmission portion is for offering on the lateral wall that the wheel seat corresponds and along the guide way of connecting piece swing direction extension, the projection with the guide way sliding fit.

In order to further ensure that the convex column is matched with the guide groove, preferably, the guide groove is obliquely arranged upwards from front to back, and the wheel seat and the support wheel are in a downward moving state under the condition that the connecting piece swings to the state that the convex column slides to the front end of the guide groove.

In order to further ensure that the ground brush can be smoothly switched when the ground brush moves forwards or backwards, each side of the two sides of the bottom of the ground brush is provided with a roller which is arranged close to the dust suction cavity, so that the bottom wall of the ground brush inclines downwards from front to back in a traveling state, and a second gap is formed between the dust suction cavity and the ground to be cleaned.

In order to ensure that the driving wheel has certain buffering and prevent the wheel component from moving up and down too suddenly, the wheel seat further comprises an elastic part, one end of the elastic part abuts against the bottom wall of the mounting cavity, the other end of the elastic part abuts against the wheel seat, and the elastic part is in an energy storage state and acts on the wheel seat when the wheel seat is in a downward moving state, so that the wheel seat always has a tendency of moving upwards to reset.

Specifically, the wheel seat is provided with holding cavities with downward openings on the front side and the rear side, the bottom of the shell is provided with positioning columns which extend upwards and are matched with the holding cavities at corresponding positions, and the elastic piece is a spring which is arranged in the holding cavities and two ends of the spring respectively abut against the top walls of the holding cavities and the upper ends of the positioning columns.

Compared with the prior art, the utility model has the advantages that: when the dust collector is used, different forces can be applied to the handheld part when the dust collector moves forwards or backwards, the connecting piece connected with the handheld part swings back and forth correspondingly relative to the ground brush, the wheel assembly is linked with the connecting piece, when the connecting piece swings forwards, the wheel assembly moves downwards correspondingly, the bottom wall of the ground brush inclines downwards from back to front, a first gap for enabling sundries and dust to enter is formed between the bottom wall of the ground brush and the ground to be cleaned, it is ensured that when the dust collector moves backwards, enough space is reserved on the rear side of the dust collector for enabling the dust and the sundries to be sucked into the dust suction cavity, and therefore when the dust collector moves to all directions, once part of the sundries and dust is leaked, dust collection can be achieved by operating the dust collector to retreat without re-turning the direction.

Drawings

FIG. 1 is a schematic view of the overall structure of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a schematic view of the engagement of the connecting member with the wheel assembly;

FIG. 4 is an exploded view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of the overall structure of the wheel seat;

FIG. 6 is a schematic structural view of the floor brush in the forward state in this embodiment;

FIG. 7 is a schematic structural view of the floor brush in the retracted state in this embodiment;

figure 8 is an overall schematic view of a vacuum cleaner in an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 8, which are one preferred embodiment of the present invention, in this embodiment, the cleaner includes a floor brush 1, a coupling member 2, and a wheel assembly 3. The front side of the ground brush 1 in the traveling direction is provided with a dust suction cavity 11 with a downward opening, namely the bottom of the dust suction cavity 11 is provided with a dust suction opening 111, the rear part of the ground brush 1 is also provided with an air outlet 113 which is in fluid communication with the dust suction opening 111, and the air outlet 113 is positioned at the downstream of the dust suction opening 111 along an airflow flow path, so that the dust suction opening 111, the dust suction cavity 11 and the air outlet 113 form a complete dust suction flow channel. Of course, in order to ensure that the vacuum cleaner covers a sufficient cleaning area, at least 2 suction chambers 11 are usually provided, and in this embodiment, 4 suction chambers 11 are taken as an example for illustration, the 4 suction chambers together form an upstream section of the suction flow channel, and a position adjacent to the air outlet 113 forms a downstream section of the suction flow channel, generally speaking, the upstream section and the downstream section of the suction flow channel are not necessarily in the same flow direction, and in practice, since the orientations of the suction opening 111 and the air outlet 113 in actual production are often opposite, for example, the suction opening 111 is usually disposed downward, so as to facilitate suction of dust on the surface such as a floor, a table, and the like, and the air outlet 113 is usually disposed upward or laterally, so as to facilitate air discharge. Therefore, in order to match the design of the dust suction port 111, the dust suction flow passage in the present embodiment is arranged substantially vertically or at a slight angle to the vertical at the upstream section; in order to adapt to the design of the air outlet 113, the dust chamber 11 is arranged substantially horizontally or at a slight angle to the horizontal in the downstream section.

Of course, in order to achieve the dust suction function, besides the operation of each component in the floor brush 1, other structures are also needed to be matched to achieve: the vacuum cleaner further comprises a fan 7 and a separation module 8 for separating a mixture of water and dust, the separation module 8 is located between the floor brush 1 and the fan 7 along the airflow path, the inlet end of the separation module 8 is in fluid communication with the outlet end of the floor brush 1, and the outlet end of the separation module 8 is in fluid communication with the inlet end of the fan 7.

In this embodiment, the above-mentioned brush head 14 is used for cleaning the object to be cleaned, and the brush head 14 is disposed at the dust suction opening 111 of the dust suction chamber 11. The brush head 14 may be a fixed brush or other movable brush head such as a rolling brush, and in this embodiment, a disc brush is used, the disc brush performs cleaning in a rotating manner, and a rotating axis of the disc brush extends vertically to ensure a maximum contact area with a surface to be cleaned, so as to improve the cleaning effect.

In this embodiment, the above-mentioned coupling member 2 is used to couple the hand-held portion of the cleaner to the floor brush 1, the top of the air outlet is provided with a pipe opening part 21 with an upward opening and for inserting the bottom of the hand-held part, the opening of the pipe opening part 21 is the air outlet 113, and the wheel assembly 3 is installed at the rear of the floor brush 1 and has a support wheel 31 capable of rotating with respect to the floor brush 1, the rotation axis of the supporting wheel 31 is vertical to the advancing direction of the floor brush 1, the bottom of the connecting piece 2 is restricted on the floor brush 1 in a back and forth swinging way, the power input end of the wheel component 3 is connected with the position of the connecting piece 2, which is close to the bottom, and then moves up and down relative to the floor brush 1 under the action of the front-back swing of the bottom of the connecting piece 2, and, in the state that the wheel component 3 is moved downwards, the bottom wall of the floor brush 1 is inclined downwards from back to front, so that a first gap 1a is formed between the bottom wall of the floor brush 1 and the floor to be cleaned, into which debris and dust can enter.

Specifically, in the present embodiment, the floor brush 1 has a housing 12, a mounting cavity 1c is formed in the rear of the housing 12, the connecting member 2 is disposed with one wheel assembly 3 on each side of the two sides of the traveling direction of the floor brush 1, the wheel assembly 3 includes a wheel seat 33 located in the mounting cavity 1c and a mounting shaft 32 connected to the wheel seat 33, the mounting shaft 32 at least partially leaks out of the housing 12, and the supporting wheel 31 is assembled on the mounting shaft 32; wherein the diapire of installation cavity 1c has the direction muscle 13 that extends along connecting piece 2, and direction muscle 13 has two, and the relative arrangement is in the both sides of connecting piece 2 swing direction, correspondingly, connecting piece 2 all is equipped with the side direction and extends, and with corresponding direction muscle 13 assorted guide part 22 in its both sides of swing direction. The guide portion 22 is a boss protruding from the outer wall surface of the connector 2, the guide rib 13 is provided with a notch portion 14 with an upward opening, the boss is accommodated in the notch portion 14, and the length of the notch portion 14 in the swing direction of the connector 2 is greater than the diameter of the boss.

In order to further ensure that the swing energy of the connecting piece 2 drives the wheel assembly 3 to move up and down, the bosses are further provided with first transmission parts 221, for each first transmission part 221, the wheel seat 33 corresponding to the boss is provided with a second transmission part 222 matched with the first transmission part 221, and the wheel seat 33 and the supporting wheel 31 are linked with the connecting piece 2 through the matching of the first transmission part 221 and the second transmission part 222. The connecting element 2 in this embodiment is substantially cylindrical, the first transmission part 221 is a convex pillar disposed on the boss and extending laterally, the second transmission part 222 is a guide groove disposed on the corresponding side wall of the wheel seat 33 and extending along the swinging direction of the connecting element 2, and the convex pillar is slidably matched with the guide groove. The guide grooves are obliquely arranged upwards from front to back, and the wheel seat 33 and the support wheel 31 are in a downward moving state under the state that the connecting piece 2 swings to the state that the convex columns slide to the front ends of the guide grooves.

The reciprocating of wheel subassembly 3 can not directly make the corresponding production state switching of dust catcher in this embodiment, but through locating the gyro wheel 4 of the both sides of scrubbing brush 1 bottom, two gyro wheels 4 all are close to the dust absorption chamber 11 and arrange to make scrubbing brush 1 under the state of advancing, its diapire from preceding back downward sloping, thereby form second clearance 1b between dust absorption chamber 11 and the ground of waiting to clean, the existence of gyro wheel 4 like this, the effect that is equivalent to the wane, when the convenient wheel subassembly 3 reciprocates, the switching of whole dust catcher clean state.

In this embodiment, in order to ensure a certain buffer of the driving wheel and prevent the wheel assembly from moving up and down too suddenly, the elastic member 5 is further included, one end of the elastic member 5 abuts against the bottom wall of the mounting cavity 1c, the other end abuts against the wheel seat 33, and in a state that the wheel seat 33 is moving down, the elastic member 5 is in an energy storage state and acts on the wheel seat 33, so that the wheel seat 33 always has a tendency of moving up and returning. Specifically, the wheel seat 33 is provided with an accommodating cavity 331 with a downward opening on both front and rear sides, the bottom of the housing 12 is provided with a positioning column 332 extending upward and matching with the accommodating cavity 331 at a corresponding position, and the elastic element 5 is a spring disposed in the accommodating cavity 331 and having two ends respectively abutting against the top wall of the accommodating cavity 331 and the upper end of the positioning column 332.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims (10)

1. A vacuum cleaner, comprising:

the floor brush (1) is provided with a dust suction cavity (11) with a downward opening at the front side of the traveling direction of the floor brush;

a connecting piece (2) for connecting the hand-held part of the dust collector to the floor brush (1), wherein the top of the connecting piece is provided with a pipe mouth part (21) with an upward opening and into which the bottom of the hand-held part is inserted;

the wheel assembly (3) is arranged at the rear part of the floor brush (1) and is provided with a supporting wheel (31) which can rotate relative to the floor brush (1), and the rotating axis of the supporting wheel (31) is vertical to the advancing direction of the floor brush (1);

the method is characterized in that: the bottom of the connecting piece (2) is constrained on the floor brush (1) in a front-back swinging mode, the power input end of the wheel assembly (3) is connected to the position, close to the bottom, of the connecting piece (2), and then moves up and down relative to the floor brush (1) under the front-back swinging action of the bottom of the connecting piece (2), and in addition, the bottom wall of the floor brush (1) inclines downwards from back to front under the condition that the wheel assembly (3) is in a downward moving state, so that a first gap (1a) for enabling sundries and dust to enter is formed between the bottom wall of the floor brush (1) and the ground to be cleaned.

2. The vacuum cleaner of claim 1, wherein: the floor brush (1) is provided with a shell (12), a mounting cavity (1c) is formed in the hollow rear portion of the shell (12), the connecting piece (2) is arranged on two sides of the traveling direction of the floor brush (1) in a corresponding mode, each side of the connecting piece is provided with a wheel assembly (3), each wheel assembly (3) comprises a wheel seat (33) located in the mounting cavity (1c) and a mounting shaft (32) connected to the wheel seat (33), the mounting shaft (32) at least partially leaks out of the shell (12), and the supporting wheel (31) is assembled on the mounting shaft (32).

3. The vacuum cleaner of claim 2, wherein: the diapire of installation cavity (1c) has the edge direction muscle (13) that connecting piece (2) extend, direction muscle (13) have two, and the relative arrangement is in the both sides of connecting piece (2) swing direction, correspondingly, connecting piece (2) all are equipped with the side direction and extend and with corresponding direction muscle (13) assorted guide part (22) in its swing direction's both sides.

4. The vacuum cleaner of claim 3, wherein: guide part (22) are protruding locating the boss of connecting piece (2) outer wall face, seted up opening breach portion (14) up on direction muscle (13), the boss holding is in breach portion (14), just breach portion (14) are greater than in the ascending length of connecting piece (2) swing direction the diameter of boss.

5. The vacuum cleaner of claim 4, wherein: the boss is further provided with a first transmission part (221), for each first transmission part (221), a second transmission part (222) matched with the first transmission part is arranged on the wheel seat (33) corresponding to the boss, and the wheel seat (33) and the supporting wheel (31) are linked with the connecting piece (2) through the matching of the first transmission part (221) and the second transmission part (222).

6. The vacuum cleaner of claim 5, wherein: the connecting piece (2) is basically cylindrical, the first transmission part (221) is a convex column which is arranged on the boss and extends laterally, the second transmission part (222) is a guide groove which is arranged on the side wall corresponding to the wheel seat (33) and extends along the swinging direction of the connecting piece (2), and the convex column is matched with the guide groove in a sliding mode.

7. The vacuum cleaner of claim 6, wherein: the guide groove is obliquely arranged upwards from front to back, and the wheel seat (33) and the support wheel (31) are in a downward moving state under the condition that the connecting piece (2) swings to the state that the convex column slides to the front end of the guide groove.

8. A vacuum cleaner according to any one of claims 1 to 7, wherein: a roller (4) is arranged on each of two sides of the bottom of the floor brush (1), and the roller (4) is arranged adjacent to the dust suction cavity (11) so that the bottom wall of the floor brush (1) is inclined downwards from front to back in a traveling state, thereby forming a second gap (1b) between the dust suction cavity (11) and the floor to be cleaned.

9. A vacuum cleaner according to any one of claims 2 to 7, wherein: the wheel seat is characterized by further comprising an elastic piece (5), one end of the elastic piece (5) abuts against the bottom wall of the installation cavity (1c), the other end of the elastic piece (5) abuts against the wheel seat (33), and the elastic piece (5) is in an energy storage state and acts on the wheel seat (33) when the wheel seat (33) is in a downward moving state, so that the wheel seat (33) always has a tendency of moving upwards to reset.

10. The vacuum cleaner of claim 9, wherein: the wheel seat (33) is provided with accommodating cavities (331) with downward openings on the front side and the rear side, the bottom of the shell (12) is provided with positioning columns (332) which extend upwards and are matched with the accommodating cavities (331) at corresponding positions, and the elastic piece (5) is a spring which is arranged in the accommodating cavities (331) and two ends of which respectively abut against the top walls of the accommodating cavities (331) and the upper ends of the positioning columns (332).

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