CN218458022U

CN218458022U - Dust cup mechanism and dust suction device

Info

Publication number: CN218458022U
Application number: CN202222517053.3U
Authority: CN
Inventors: 刘海平; 王峰
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-02-10
Anticipated expiration: 2032-09-22

Abstract

The utility model belongs to the technical field of cleaning device, a dirt cup mechanism and dust extraction is disclosed. The dust cup mechanism is used for a dust collection device, the dust collection device comprises a main body, a dust collection port is arranged at the front end of the main body, and the dust cup mechanism comprises a dust cup, a separation assembly and an anti-backflow plate; the separation component is arranged in the dust cup and comprises a cyclone cover, the cyclone cover is arranged at the rear end of the dust cup, a front-side dust containing cavity is formed between the front side of the cyclone cover and the inner wall of the dust cup, and an inlet and a dust throwing port are formed in the cyclone cover; the anti-return plate is connected with the front end face of the cyclone cover, and the anti-return plate extends towards the front side. Through setting up anti-return plate, can block when the dust absorption mouth sets up upwards to be located the dust that the front side held the dirt intracavity, avoid the dust to fall under the action of gravity and get into in the cyclone cover to guarantee separable set's dirt gas separation effect.

Description

Dust cup mechanism and dust suction device

Technical Field

The utility model relates to a cleaning device technical field especially relates to a dirt cup mechanism and dust extraction.

Background

In the existing dust suction device, a cyclone separation mechanism is adopted to realize dust-air separation, and separated dust is stored in a dust cup. However, the dust cup is not provided with a backflow prevention structure, so that when the dust suction opening of the dust suction device is arranged upwards, the risk that dust in the dust cup does not flow back to the cyclone separation mechanism exists, and the dust-air separation effect is affected.

Therefore, a dust cup mechanism and a dust suction device are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dirt cup mechanism and dust extraction can solve the dust absorption mouth problem in dust backward flow to whirlwind separating mechanism when up.

To achieve the purpose, the utility model adopts the following technical proposal:

dirt cup mechanism for dust extraction, dust extraction includes the main part, the front end of main part is provided with the dust absorption mouth, dirt cup mechanism includes:

a dust cup;

the separation component is arranged in the dust cup and comprises a cyclone cover, the cyclone cover is arranged at the rear end of the dust cup, a front-side dust containing cavity is formed between the front side of the cyclone cover and the inner wall of the dust cup, and an inlet and a dust throwing port are formed in the cyclone cover;

the anti-backflow plate is connected with the front end face of the cyclone cover and extends towards the front side.

As an alternative to the above-described dirt cup mechanism, the backflow prevention plate is disposed around a circumference of the cyclone cover.

As an alternative of the above-mentioned dirt cup mechanism, at least part of the circumferential side wall of the cyclone cover and the inner wall of the dirt cup are arranged at an interval, so that a rear-side dirt containing cavity is formed between at least part of the circumferential side wall of the cyclone cover and the inner wall of the dirt cup, and the inlet and the dirt throwing port are both located on the circumferential side wall of the cyclone cover.

As an alternative to the above-mentioned dirt cup mechanism, the dust slinger is located at the front end of the cyclone cover.

As an alternative to the above-described dirt cup mechanism, the inlet is disposed at a rear end of the cyclone housing.

As an alternative of the above-mentioned dirt cup mechanism, the dust suction device includes a dust suction portion, the dirt cup mechanism is disposed below the dust suction portion, the cyclone cover is connected to an inner wall of one side of the dirt cup away from the dust suction portion, and a dimension of the backflow prevention plate in the front-rear direction gradually increases in a direction away from the dust suction portion.

As an alternative of the dust cup mechanism, the inlet and the dust throwing port are arranged in a staggered mode along the front-back direction.

As an alternative of the above dust cup mechanism, the rear end of the dust cup is provided with a dust cup outlet, the dust cup outlet is communicated with the separation assembly, and the dust cup outlet is internally provided with a filter member.

Dust extraction includes:

the dust collector comprises a main body, wherein a dust collection channel is arranged in the main body, and a dust collection port communicated with the dust collection channel is arranged at the front end of the main body;

a fan assembly disposed within the body;

according to the dust cup mechanism, the dust cup mechanism is arranged on the main body, and the dust cup is respectively communicated with the dust absorption channel and the fan assembly.

As an alternative of the above dust suction device, the main body includes a hand-held portion and a dust suction portion, the dust suction portion extends forward from a front side of the hand-held portion, the dust suction passage is disposed in the dust suction portion, the fan assembly is disposed in the hand-held portion, and the dirt cup mechanism is disposed below the dust suction portion.

As an alternative of the above dust suction device, a handle is formed at a lower end of the hand-held portion, and the fan assembly is disposed at an upper end of the hand-held portion.

The utility model has the advantages that:

the utility model provides an among the dirt cup mechanism, through setting up the anti-return board, can block when the dust absorption mouth sets up and be located the dust that the front side held the dirt intracavity, avoid the dust to fall under the action of gravity and get into in the whirlwind cover to guarantee separation assembly's dirt gas separation effect.

The utility model provides a dust extraction adopts above-mentioned dirt cup mechanism, and the dirt gas separation is effectual, and clean effect is stable.

Drawings

FIG. 1 is a sectional view of a dust suction device provided by the present invention;

fig. 2 is a sectional view of a part of the structure of the dust cup mechanism provided by the present invention;

FIG. 3 is a cross-sectional view of the dust suction device provided by the present invention, with the front end of the dust suction part facing downward;

FIG. 4 is a sectional view of the dust suction device provided by the present invention with the front end of the dust suction part facing upward;

fig. 5 is a sectional view of the dust suction device according to the present invention, when the front end of the dust suction unit is directed upward for sucking dust.

In the figure:

10. a main body; 11. a hand-held portion; 12. a dust suction part; 121. a dust collection channel; 20. a dust cup mechanism; 21. a dust cup; 22. a separation assembly; 221. a cyclone cover; 2211. a dust throwing port; 2212. an inlet; 222. a cyclone cone; 23. an anti-backflow plate; 24. a cyclone chamber; 251. a front side dust holding cavity; 252. the rear side dust containing cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1, the present embodiment provides a dust suction apparatus including a main body 10, a fan assembly, and a dust cup mechanism 20. A dust suction passage 121 is provided in the main body 10, and one end of the dust suction passage 121 is aligned with a surface to be cleaned and the other end thereof is communicated with a dust cup inlet of the dust cup mechanism 20. The fan assembly is disposed in the main body 10 and is in communication with the dirt cup outlet of the dirt cup mechanism 20.

When the dust suction apparatus is used, an operator can move the dust suction apparatus by holding the main body 10 so that one end port of the dust suction passage 121 faces and moves along the surface to be cleaned. The fan assembly can produce the adsorption affinity to make near the air current of treating clean surface carry impurity such as dust and get into dust absorption passageway 121, carry out dirt gas separation back through dirt cup mechanism 20, the clear gas passes through the fan assembly and discharges, and the impurity of separating is saved in dirt cup mechanism 20, in order to realize cleanly.

For the convenience of the operator, the main body 10 includes a hand-held portion 11 and a dust suction portion 12, and the dust suction portion 12 extends from one end of the hand-held portion 11. When a user holds the handheld portion 11, the dust suction portion 12 extends towards the direction facing the user, the dust suction channel 121 is disposed in the dust suction portion 12, and the dust suction channel 121 penetrates through an end face of the dust suction portion 12, which is far away from the handheld portion 11, so as to be conveniently aligned to a surface to be cleaned. For convenience of description, the dust suction part 12 is extended in the front-rear direction, the end of the dust suction part 12 not connected to the handle part 11 is the front end, and the handle part 11 is located at the rear end of the dust suction part 12.

Specifically, the handle portion 11 is provided in a handle shape, which is convenient for an operator to hold. The hand-held part 11 is generally columnar, a hand-clasping hole is formed in the hand-held part 11, and when a user grasps the hand-held part 11, fingers can penetrate through the hand-clasping hole.

Specifically, the dust cup mechanism 20 includes a dust cup 21 and a separating assembly 22 disposed in the dust cup 21, an inlet and an outlet of the dust cup are both disposed on the dust cup 21, the separating assembly 22 is used for separating impurities in fluid entering the dust cup 21, so that the impurities are accumulated in the dust cup 21, and the filtered gas enters the fan assembly through the separating assembly 22 and the outlet of the dust cup, so as to be discharged through the fan assembly.

In order to facilitate the air filtered by the separation assembly 22 to enter the fan assembly, the separation assembly 22 is disposed at the rear end of the dirt cup 21 to facilitate the cooperation with the fan assembly. Alternatively, the separation assembly 22 may be a cyclone separator, which separates the solid particles having a large inertial centrifugal force from the gas by the rotational motion of the fluid, which is thrown to the outside. The cyclone separator has the characteristics of simple structure, high operation elasticity, higher efficiency, convenience in management and maintenance, low price and the like.

In this embodiment, as shown in fig. 1 and fig. 2, the separation assembly 22 includes a cyclone cover 221 and a cyclone cone 222 disposed in the cyclone cover 221. The cyclone cover 221 has an opening facing rearward and covers the inner wall of the dust cup 21 at the rear side thereof, so that a cyclone chamber 24 is defined between the cyclone cover 221 and the dust cup 21. A front dust containing cavity 251 is formed between the front side of the cyclone cover 221 and the inner wall of the dust cup 21. The cyclone cover 221 is provided with an inlet 2212 and a dust throwing port 2211. The fluid in the dirt cup 21 enters the cyclone cover 221 through the inlet 2212 and rotates, and the dirt in the fluid is thrown out through the dirt throwing port 2211 by centrifugal force to be collected in the front dirt holding cavity 251. The dust separated gas is exhausted through the fan assembly via the cyclone cone 222.

When the dust suction device is used, the front end of the dust suction part 12 is generally directed downward to clean dust at a low height, and at this time, the separated dust is collected at the front end of the dust cup 21. When the operator adjusts the posture of the dust suction apparatus and the front end of the dust suction part 12 is directed upward, the dust accumulated at the front end of the dust cup 21 falls down by gravity and easily enters the cyclone cover 221 again through the dust ejection port 2211, which may easily cause the separation assembly 22 to be clogged, thereby affecting the dust-air separation effect.

In order to solve the above problem, in the present embodiment, as shown in fig. 2 and 3, the dirt cup mechanism 20 further includes a backflow preventing plate 23 disposed in the dirt cup 21, and the backflow preventing plate 23 is connected to the front end surface of the cyclone cover 221. The backflow preventing plate 23 can prevent dust from falling when the front end of the dust suction portion 12 is disposed upward, so as to retain at least part of the dust in the front dust containing chamber 251 and prevent the dust from entering the cyclone cover 221 again, thereby ensuring the dust-air separation effect of the separation assembly 22.

When the front end of the dust suction part 12 is disposed downward, as shown in fig. 3, foreign substances such as dust (indicated by crosses in fig. 3) are accumulated in the front dust chamber 251 after the fluid is separated by the separation unit 22. When the operator adjusts the posture of the dust suction device to set the front end of the dust suction part 12 upward, as shown in fig. 4, at least some of the impurities in the front dust containing chamber 251 can be intercepted by the anti-backflow plate 23 in the front dust containing chamber 251 to prevent the dust from entering the cyclone cover 221 again, so as to ensure the separation effect of the separation assembly 22

When the front end of the dust suction part 12 is disposed upward, the dust thrown out through the dust throwing port 2211 is difficult to overcome the gravity and enter the front dust containing cavity 251, for this reason, at least part of the circumferential side wall of the cyclone cover 221 is disposed at an interval from the inner wall of the dust cup 21, so that the rear dust containing cavity 252 is formed between at least part of the circumferential side wall of the cyclone cover 221 and the inner wall of the dust cup 21, and thus when the front end of the dust suction part 12 is disposed upward, the dust thrown out through the dust throwing port 2211 can be accumulated in the rear dust containing cavity 252 under the action of gravity, as shown in fig. 5.

When the dust suction apparatus finishes dust suction with the front end of the dust suction part 12 facing upward and then faces the front end of the dust suction part 12 facing downward, the dust in the rear dust containing chamber 252 can enter the front dust containing chamber 251 under the guiding action of the cyclone cover 221 and the backflow preventing plate 23.

In this embodiment, the anti-backflow plate 23 is disposed around the circumferential direction of the cyclone cover 221, so as to better block dust in the front dust containing cavity 251 and better achieve an anti-backflow effect.

In order to reduce the cost, the anti-backflow plate 23 and the inner wall of the dust cup 21 are matched to form a cylindrical structure with a closed circumferential direction, and the dust blocking effect is favorably improved.

In other embodiments, the backflow preventing plates 23 are continuously arranged along the circumferential direction of the cyclone cover 221, and the backflow preventing plates 23 are connected end to end along the circumferential direction of the cyclone cover 221 to form a circumferentially closed cylindrical structure.

In some embodiments, the anti-backflow plates 23 may be disposed at intervals around the circumference of the cyclone cover 221, and may also serve as dust barriers.

Optionally, the backflow prevention plate 23 may be detachably connected to the cyclone cover 221 to facilitate cleaning or replacement. For example, the backflow preventing plate 23 may be fixed to the cyclone cover 221 by screws, or the backflow preventing plate 23 may be engaged with the cyclone cover 221.

Further, the inlet 2212 and the dust ejection port 2211 are both located on the circumferential side wall of the cyclone cover 221. Because the dust suction channel 121 is communicated with the rear end of the dust cup 21, the inlet of the dust cup communicated with the dust suction channel 121 is opposite to the circumferential side wall of the cyclone cover 221, and the inlet 2212 is arranged on the circumferential side wall of the cyclone cover 221, so that the airflow carrying dust entering the dust cup 21 can directly enter the cyclone cover 221. The airflow entering the cyclone cover 221 flows in a rotating manner, and the flowing direction of the airflow approximately flows along the circumferential direction of the cyclone cover 221, so that dust is thrown out by the dust throwing port 2211 by centrifugal force and falls into the rear dust containing cavity 252; meanwhile, compared with the dust throwing port 2211 arranged at another position, the dust throwing port 2211 is located on the circumferential side wall of the cyclone cover 221, so that dust in the front dust containing cavity 251 can be more difficult to enter the cyclone cover 221 again from the dust throwing port 2211.

The dust cup 21 is located below the dust collection unit 12 with reference to the horizontal extension of the dust collection unit 12, and the cyclone cover 221 is located at the bottom of the dust cup 21. In this embodiment, the circumferential sidewall of the bottom of the cyclone cover 221 is connected to the inner wall of the bottom of the dirt cup 21, so that the circumferential sidewall of the top of the cyclone cover 221 and the circumferential sidewall of the top of the dirt cup 21 are disposed at intervals, and a rear-side dirt holding cavity 252 is formed therebetween.

Further, the circumferential side wall of the cyclone cover 221 is an arc-shaped plate which is not closed along the circumferential direction, so that the arc-shaped plate and the partial bottom circumferential side wall of the dust cup 21 are matched to enclose the cyclone chamber 24, which is beneficial to simplifying the inner structure of the dust cup 21 and reducing the cost.

Optionally, the dust ejection port 2211 is located at the front end of the cyclone cover 221, i.e. the dust ejection port 2211 is located at the end of the cyclone cover facing away from the handheld portion 11. In use, when the front end of the dust collecting part 12 faces downward, the distance between the dust throwing port 2211 and the front dust containing cavity 251 along the axial direction of the dust cup 21 is short, so that dust thrown out through the dust throwing port 2211 can conveniently enter the front dust containing cavity 251 under the action of gravity. When the front end of the dust suction portion 12 faces downward, the dust throwing port 2211 is away from the bottom surface of the rear dust containing cavity 252 by a certain distance, so that the depth of the rear dust containing cavity 252 can be ensured, and the dust containing amount of the rear dust containing cavity 252 is increased.

Alternatively, the inlet 2212 and the dust ejection port 2211 are arranged offset in the axial direction of the cyclone cover 221. This arrangement facilitates rotational movement of the fluid within the cyclone shroud 221, thereby improving the dust and gas separation effect.

It will be appreciated that when the front end of the dust suction portion 12 of the dust suction device is directed downward, as shown in fig. 3, dust will accumulate under gravity toward the front side below the front side dust containing chamber 251. In order to prevent the dust from overflowing from the end of the backflow-preventing plate 23 due to high dust accumulation, the dimension (hereinafter referred to as the first dimension) of the backflow-preventing plate 23 along the axial direction of the dust cup 21 gradually increases along the direction away from the dust collection portion 12, that is, the front end face a of the backflow-preventing plate 23 is inclined from the top to the bottom toward the front side, so that the dust accumulated at the bottom end of the front side dust containing cavity 251 can be blocked by the backflow-preventing plate 23 more, which is beneficial to preventing the impurities such as dust from passing through the backflow-preventing plate 23 and entering the cyclone cover 221 again. The axial direction of the dust cup 21 is the front-rear direction shown in fig. 3.

When the front end of the dust suction unit 12 of the dust suction device is directed upward, as shown in fig. 4, the dust in the front dust chamber 251 is accumulated downward toward the rear side of the front dust chamber 251 by gravity, and the front end surface a of the backflow preventing plate 23 is inclined, so that the backflow preventing plate 23 can intercept more dust.

Further, an included angle between the anti-backflow plate 23 and the front end face of the cyclone cover 221 can be an acute angle, which is beneficial to guiding dust thrown out by the dust throwing port 2211 to move into the front dust containing cavity 251 along one side surface of the anti-backflow plate 23 facing the dust suction portion 11, and the situation that the dust is difficult to enter the front dust containing cavity 251 due to the arrangement of the anti-backflow plate 23 is avoided.

Optionally, the anti-backflow plate 23 and the cyclone cover 221 are integrally formed, so as to facilitate processing and reduce the number of parts of the dust cup mechanism 20.

Optionally, the backflow prevention plate 23 and the cyclone cover 221 may be integrally formed with the dirt cup 21 to simplify the structure of the dirt cup mechanism 20 and reduce the cost.

In order to further improve the cleaning effect of the dust collector, the rear end of the dust cup 21 is provided with a dust cup outlet which is communicated with the separating assembly 22, and a filtering piece is arranged in the dust cup outlet and can filter the airflow passing through the cyclone cone 222 again so as to separate impurities such as dust and the like in the airflow.

Alternatively, the filter member may be a filter screen or a HEPA filter element as long as impurities can be filtered.

Optionally, the fan subassembly sets up in handheld portion 11, and fan subassembly weight is great, through setting up the fan subassembly in handheld portion 11, is favorable to the operator to hold more laborsaving. The dust cup mechanism 20 is arranged below the dust collection part 12 and located on the front side of the handheld part 11, the dust cup mechanism 20 is connected with the dust collection part 12 and the handheld part 11 respectively, on one hand, the stability of the dust cup mechanism 20 after being fixed can be guaranteed, on the other hand, the dust cup mechanism 20 can be conveniently communicated with the dust collection channel 121 and the fan assembly respectively, the structure is simplified beneficially, and the dust collection device is compact.

Furthermore, the front end of the dust cup mechanism 20 is located at the rear side of the front end of the dust collection part 12, that is, the front end of the dust collection part 12 extends forward relative to the dust cup mechanism 20, so that the front end of the dust collection device can be small in size, the dust collection part 12 can conveniently extend into a narrow space, and the cleaning effect of the dust collection device on narrow positions such as corners and the like is improved.

The overall appearance of the dust suction device in the embodiment is similar to that of a pistol, and the dust suction device is convenient to use.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Dirt cup mechanism for dust extraction, dust extraction includes the main part, the front end of main part is provided with the dust absorption mouth, its characterized in that, dirt cup mechanism includes:

a dust cup;

2. The dirt cup mechanism of claim 1, wherein the anti-drainback plate is disposed about a circumference of the cyclone housing.

3. The dirt cup mechanism of claim 1, wherein at least a portion of the peripheral sidewall of the cyclone housing is spaced from the dirt cup inner wall such that a rear dirt holding cavity is formed between the at least a portion of the peripheral sidewall of the cyclone housing and the dirt cup inner wall, and the inlet and the dirt slinger are both located on the peripheral sidewall of the cyclone housing.

4. The dirt cup mechanism of claim 3, wherein the dirt slinger is located at a forward end of the cyclone housing.

5. The dirt cup mechanism of claim 3, wherein the inlet is disposed at a rear end of the cyclone housing.

6. The dirt cup mechanism of claim 3, wherein the dust extraction device comprises a dust collection portion, the dirt cup mechanism is disposed below the dust collection portion, the cyclone cover is connected to an inner wall of the dirt cup on a side away from the dust collection portion, and a dimension of the anti-backflow plate in a front-to-back direction gradually increases in a direction away from the dust collection portion.

7. The dirt cup mechanism of claim 3, wherein said inlet and said dirt slinger are offset in a front-to-back direction.

8. The dirt cup mechanism of any one of claims 1-7, wherein a dirt cup outlet is provided at a rear end of the dirt cup, the dirt cup outlet being in communication with the separator assembly, the dirt cup outlet having a filter element disposed therein.

9. Dust extraction, its characterized in that includes:

a fan assembly disposed within the body;

the dirt cup mechanism of any of claims 1-8, disposed on the main body, the dirt cup in communication with the dust extraction channel and the fan assembly, respectively.

10. The vacuum cleaner of claim 9, wherein the main body includes a hand-held portion and a vacuum portion extending forwardly from the hand-held portion, the vacuum channel is disposed in the vacuum portion, the fan assembly is disposed in the hand-held portion, and the dirt cup mechanism is disposed below the vacuum portion.

11. The vacuum cleaner of claim 10, wherein the handle is formed at a lower end of the handle portion and the fan assembly is disposed at an upper end of the handle portion.