CN212489737U - Extension pipe assembly and handheld dust collecting equipment - Google Patents

Abstract

The utility model discloses an extension pipe component and a handheld dust collection device, which comprises a long and narrow tubular component with an airflow channel and a brush component, wherein the tubular component comprises a rear connecting part butted with an inlet of a dust collector, a middle area and a front mouth part; when the toothbrush is not used, the brush assembly can be retreated from the position of the front mouth part, which is a second state, and the brush assembly is in an idle state; the brush assembly can change the using state of the tubular component in a mode of moving up and down, and a user can quickly and conveniently move the brush assembly to meet the requirement of the user.

Description

Extension pipe assembly and handheld dust collecting equipment

Technical Field

The utility model relates to a dust catcher technical field especially relates to a hand-held type cleaning device's accessory specifically is the extension pipe assembly of configuration in the west entry of dust catcher to adapt to different dust absorption modes and handle different environment, the dust absorption on object surface.

Background

The hand-held vacuum cleaner is used for household cleaning due to the advantages of small volume, light total weight and convenient carrying and use.

The handheld dust collector mainly comprises a host and a dust collecting cup, when the handheld dust collector works, negative pressure is generated inside the dust collecting cup through a dust collecting motor in the host to generate suction force, so that air containing dust or foreign matters is sucked in through a suction nozzle, the dust, the foreign matters and the air are separated through an air filtering device extending into the dust collecting cup, the processed air is discharged through an air outlet, and the dust and the foreign matters are concentrated in the dust collecting cup.

The hand-held cleaning equipment with the publication number of CN104172986A comprises a dust cylinder, a filtering device and a separating device, wherein the dust cylinder is arranged below the separating device, and the filtering device is arranged above the separating device.

There is a charging device of a hand-held dust collector, which comprises a base and a dust collector side wall supporting part fixed on the base, and a power line is also arranged on the base.

Although the existing handheld dust collector is small and exquisite and light, the length is short, the handheld dust collector is inconvenient to bend over, and meanwhile, the problem that garbage and dust are firmly adsorbed on the surface of an object and are not easy to be sucked by the handheld dust collector exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an extension tube subassembly for disposing at the dust catcher sunction inlet is provided, because of dispose rubbish and the dust that the brush can clear up and adsorb on the object surface, cleaned by hand-held type dust collecting equipment easily.

The utility model provides a technical scheme that above-mentioned technical problem provided does: an extension tube assembly for disposition at a suction inlet of a vacuum cleaner, the extension tube assembly comprising an elongate tubular member having an airflow path and a brush assembly, the tubular member comprising a rear attachment portion for engaging an inlet of the vacuum cleaner, a central region and a forward mouth portion, the brush assembly being movably disposed in association with the tubular member, the brush assembly being disposed in the forward mouth portion in a first condition to provide for dust removal during suction; in the second state, the brush assembly is retracted from the forward mouth position.

The utility model discloses further preferred technical scheme does: the brush assembly comprises a connecting body arranged on the tubular part and a brush arranged at the front end of the connecting body.

The utility model discloses further preferred technical scheme does: the coupling body is a shaft connecting frame with the end part being connected to the middle area in a shaft connection mode, and the shaft connecting frame is rotatably connected to the middle area.

The utility model discloses further preferred technical scheme does: the connecting body is a sleeve sleeved in the middle area, and the sleeve can perform amplitude limiting movement in the middle area.

The utility model discloses further preferred technical scheme does: the inner wall of the sleeve is provided with a clamping piece, and the middle area is provided with a first positioning part and a second positioning part; when the clamping piece is matched with the first positioning part, the brush assembly is in a first state, and when the clamping piece is matched with the second positioning part, the brush assembly is in a second state.

The utility model discloses further preferred technical scheme does: and a rib-groove matching structure is arranged between the first positioning part or the second positioning part and the clamping piece.

The utility model discloses further preferred technical scheme does: the outer surface of the sleeve is provided with a button for controlling the action of the clamping piece so as to realize the separation or the matching between the clamping piece and the positioning part.

The utility model discloses further preferred technical scheme does: the outer surface of the tubular component is provided with a first limiting rib and a second limiting rib which limit the excessive movement of the sleeve; and the airflow channel of the tubular component is of a flat structure.

The utility model discloses further preferred technical scheme does: the front end face of the sleeve in the first state is flush with the front end face of the front nozzle part and is an inclined face, and the brush is assembled on the front end face of the sleeve.

Another preferred subject of the present invention is: the handheld dust suction equipment comprises the extension pipe assembly and the handheld dust collector.

Compared with the prior art, the utility model has the advantages that the suction inlet of the hand-held dust collector is detachably equipped with an extension pipe component to extend the length of the suction inlet part of the dust collector, so that a user can conveniently perform dust collection treatment on an area to be cleaned under the state of keeping a certain distance; the brush component on the extension pipe component can be movably connected and configured on the tubular component, and when the extension pipe component is in the first state, the brush component is positioned at the front mouth part to clean dust during dust collection; when the toothbrush is not used, the brush assembly can be retreated from the position of the front mouth part, which is a second state, and the brush assembly is in an idle state; the brush assembly can change the using state of the tubular component in a mode of moving up and down, and a user can quickly and conveniently move the brush assembly to meet the requirement of the user.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of a hand-held dust-collecting apparatus;

FIG. 2 is a schematic view of a charging base and an extension tube assembly;

fig. 3 is a schematic view of the overall structure of the charging base;

fig. 4 is a front view of the charging base of the present invention;

FIG. 5 is a schematic view of the overall structure of the hand-held cleaner;

FIG. 6 is a schematic view of the extension tube assembly in a first state;

FIG. 7 is a schematic view of the extension tube assembly in a second state;

FIG. 8 is a schematic structural view of the tubular member and the brush assembly;

FIG. 9 is a schematic view of a tubular member of the present invention;

FIG. 10 is a schematic view of a brush assembly according to the present invention;

fig. 11 is an enlarged view of a portion a in fig. 2 according to the present invention;

fig. 12 is an enlarged view of the portion B in fig. 8 according to the present invention;

fig. 13 is an enlarged view of the point C in fig. 8 according to the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

As shown in fig. 1 to 4 and 11, the handheld vacuum cleaner 400 includes a charging base 100 and a handheld vacuum cleaner 300.

The charging base 100 comprises a base 10, an inclined supporting part 20 for supporting the handheld dust collector 300 and a first accommodating groove 31 for inserting the front end of the handheld dust collector 300, wherein the inclined supporting part 20 is formed by upwards extending a circle of side wall F of the first accommodating groove 31, charging components 40 for charging the handheld dust collector 300 are respectively arranged on the inclined supporting part 20, each charging component 40 comprises a charging contact piece which is positioned on the supporting inner surface 21 of the inclined supporting part 20 and is in contact with the handheld dust collector 300, a charging core which is arranged in the inclined supporting part 20 and a charging jack 41 which is arranged on the outer surface of the inclined supporting part 20 and is connected with an external power supply, the charging jack 41 is electrically connected with the charging core, and the charging core is electrically connected with the charging contact piece.

After the front end of the handheld dust collector 300 is inserted into the first accommodating groove 31 of the charging base 100, the charging connector on the handheld dust collector 300 is just electrically connected with the charging contact piece on the inner surface 21 of the inclined supporting part 20, so as to charge the handheld dust collector 300 according to the user requirement; and because the charging jack 41 of the charging assembly 40 is arranged on the outer surface of the inclined support part 20, the position of the charging jack 41 is in an open state, the charging operation of the handheld vacuum cleaner 300 by the charging base 100 is not limited by the space arrangement, and the effect of optimizing the charging structure of the charging base 100 is finally achieved.

Preferably, the base 10 of the present embodiment is further provided with a second receiving groove 32 for inserting a dust suction accessory Q, and the dust suction accessory Q is spaced at a rear position of the inclined support portion 20. Further, the number of the second receiving grooves 32 may be 2 to 3, and the second receiving grooves may be uniformly spaced at the rear side of the inclined support portion 20.

In actual design, a projection 22 is formed projecting rearward on the rear surface of the inclined support portion 20, and the projection 22 has an inner cavity therein for accommodating the charging core. At this time, as shown in fig. 2 and 10, the charging socket 41 opens on the side surface 23 of the inclined support portion 20. And the charging cartridge and the charging jack 41 may be opened on different planes, so that when the dust suction accessory Q is inserted into the second receiving groove 32 located at the rear side of the charging cartridge, the charging jack 41 is not blocked, and is still in an open state, and the hand-held cleaner 300 can be charged as required.

The charging contact and the charging jack 41 are uniformly disposed at a position above the inclined support portion 20, and the charging contact is adjacent to and close to the charging jack 41.

The charging contact is a spring contact K2. When the hand-held cleaner 300 is rested on the support inner surface 21 of the inclined support portion 20, the charging connector K1 on the hand-held cleaner 300 is just pressed against the leaf spring type contact K2, thereby achieving the electrical connection of the hand-held cleaner with the charging base 100.

The charging base 100 is further provided with a power cord with a power adapter, and the power cord comprises a charging plug which is butted with the charging jack 41.

A plurality of vertical ribs 32f which are distributed annularly and increase the close contact force are arranged in the second accommodating groove 32. So that the dust-collecting accessory Q can be inserted into the second receiving groove 32 more stably.

The first receiving groove 31 includes a deeper first recess 31a into which a suction nozzle of the hand-held cleaner is inserted and a shallower second recess 31b into which a front end of a dust box of the hand-held cleaner is inserted, and the first recess 31a and the second recess 31b have a stepped structure. Of course, the inner structure of the first receiving groove 31 may be designed according to the front structure of the handheld vacuum cleaner, so that the front end of the handheld vacuum cleaner can be inserted into the first receiving groove 31 in a matching manner.

As shown in fig. 1 and 5, an extension pipe assembly 200 is detachably mounted at a suction inlet 301 of a front end of the hand-held cleaner 300, and the extension pipe assembly 200 is placed in the second receiving groove 32 when not in use.

The handheld dust collector 300 comprises a dust collector main body 303, an air suction component and a dust cup, wherein the air suction component and the dust cup are arranged inside the dust collector main body 303, the dust cup is assembled at the front end of the dust collector main body 303, an air inlet and an air outlet are formed in the dust collector main body 303, the air inlet is also called a suction inlet 301, and dust and debris are sucked into the dust cup along with air flow. A grip portion 302 for a user to hold is installed at a rear portion of the cleaner body 303, and the grip portion 302 is aligned with a central axis of the cleaner body 303, so that the hand-held cleaner 300 can be more easily held.

Further, the extension pipe assembly 200 may be provided with 1-3, and the length, the sectional shape, etc. of the extension pipe assembly 200 may be changed according to the cleaning region. Correspondingly, 1 to 3 second receiving grooves 32 may be provided. When the extension pipe assembly 200 is used to extend the length of the suction port, the extension pipe assembly 200 is removed from the second receiving groove 32, and is mounted to the suction port 301 at the front end of the cleaner body, and is removed and received when not in use.

As shown in fig. 6 to 10, 12 and 13, the dust suction accessory Q, that is, the extension pipe assembly 200, which will be described in detail below, of the present embodiment is adapted to be disposed at a suction port 301 of a dust collector, the extension pipe assembly 200 includes an elongated tubular member 50 having an airflow passage, the tubular member 50 includes a rear connecting portion 53 for interfacing with the suction inlet of the dust collector, a middle region 52 and a front mouth portion 51, the brush assembly 60 is movably coupled to the tubular member 50, and in a first state, the brush assembly 60 is located at the front mouth portion 51 to provide dust cleaning during dust suction; in the second state, the brush assembly 60 is retracted from the forward mouth portion 51.

The suction inlet 301 of the hand-held cleaner 300 is detachably provided with an extension pipe assembly 200 to extend the length of the suction inlet part of the cleaner, so that a user can conveniently perform dust collection treatment on an area to be cleaned under the state of keeping a certain distance; the brush assembly 60 of the extension pipe assembly 200 is movably coupled to the tubular member 50, and in the first state, the brush assembly 60 is located at the front mouth 51 of the tubular member 50 for cleaning dust during dust collection; when not in use, the brush assembly 60 can be retracted from the forward mouth portion 51 position, which is a second condition in which the brush assembly 60 is in an idle condition; the brush assembly 60 can be changed in use state by moving up and down the tubular member 50, and the user can move the brush assembly 60 quickly and conveniently to meet his or her own user's needs.

The brush assembly 60 includes a coupling body 61 provided on the tubular member 50 and a brush 62 disposed at a front end of the coupling body 61.

In practice, the coupling body 61 may be a shaft bracket with ends pivotally connected to the central region 52, the shaft bracket being rotatably connected to the central region 52. The coupling frame is of a U-like structure, and correspondingly, a U-like groove for accommodating the coupling frame is formed in the middle area 52. When the shaft connecting frame needs to be stored, the shaft connecting frame can be rotated upwards so that the U-shaped shaft connecting frame is embedded into the U-shaped groove. When it is desired to use, the shaft bracket is turned downward and is snap-fitted to the front mouth 51 in the form of a snap-fit assembly to sweep dust.

However, it is more preferable that the coupling body 61 in the present embodiment is a sleeve 61b sleeved on the middle region, and the sleeve 61b can perform a limited movement in the middle region 52.

The inner wall of the sleeve 61b is provided with a clamping piece 03, and the middle area 52 is provided with a first positioning part 01 and a second positioning part 02; when the clip member 03 is engaged with the first positioning portion 01, the brush assembly 60 is in the first state, and the brush assembly 60 is located in the front nozzle portion 51 to provide dust cleaning during dust collection; when the clip member 03 is engaged with the second positioning portion 02, the brush assembly 60 is in the second state, and the brush assembly 60 is retracted from the front mouth portion 51 and is in an idle state.

A rib-groove matching structure is arranged between the first positioning part 01 or the second positioning part 02 and the clamping piece 03. Specifically, the positioning part comprises two limiting blocks t with certain length which are fixed on the surface of the sleeve 61b up and down, and a limiting groove h is formed between the two limiting blocks t which are basically in a parallel state; the clamping piece 03 comprises a positioning rib c, and the limiting groove h and the positioning rib c are matched with each other, so that the positioning part and the clamping piece 03 are mutually limited stably.

The outer surface of the sleeve 61b is provided with a button 04 for controlling the action of the clamping piece 03, so that the separation or the matching between the clamping piece 03 and the positioning part is realized. Specifically, the button 04 is pressed downward so that the positioning rib c on the card member 03 is lifted upward and removed from the limiting groove h, and when the external force applied to the button 04 is removed, the button 04 has a certain restoring force to return to the original state; of course, a through hole for limiting the up and down movement of the button 04 is opened at a position corresponding to the mounting position of the button 04 of the sleeve 61 b.

In practical implementation, button holes 05 corresponding to the buttons 04 on the sleeve 61b are formed in corresponding positions beside the first positioning portion 01 and the second positioning portion 02 of the tubular member 60, so that downward pressing of the buttons 04 can be thorough, the lifting distance of the positioning rib c on the clamping piece 03 is sufficient, friction between the positioning rib c and the limiting block t is avoided when the sleeve 61b slides up and down, and the sleeve 61b further moves up and down smoothly.

The outer surface of the tubular member 50 is provided with first and second stopper ribs a and b that restrict excessive movement of the sleeve 61 b. When the sleeve 61b is in the first state, the first limiting rib a and the casing of the sleeve 61b are mutually clamped, so as to prevent the sleeve 61b from moving outwards and separating from the tubular part 50; and the integral brush assembly 60 is positioned at the front nozzle part 51 for cleaning dust at the same time; when the sleeve 61b is in the second state, the second limiting rib b and the casing of the sleeve 61b are mutually clamped to prevent the sleeve 61b from moving inward too much to be separated from the tubular member 51, and the brush assembly 60 is in an idle state.

Preferably, the airflow channel of the tubular member 50 in the present embodiment is a flat structure, so that the airflow is more turbulent and the dust collection effect is improved.

In practical use, the front end face f2 of the sleeve 61b in the first state is flush with and inclined with respect to the front end face f1 of the front nozzle 51, so as to more completely and thoroughly contact the surface to be cleaned, thereby more completely absorbing dust, debris and other impurities. At this time, it is preferable that the brush 62 of the brush assembly 60 is fitted on the front end surface f2 of the sleeve 61 b.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

It is right above the utility model provides an extension pipe assembly and hand-held type dust catcher for disposing at the dust catcher sunction inlet have carried out detailed introduction, and it is right to have used specific individual example in this paper the utility model discloses a principle and implementation mode have been elucidated, and the description of above embodiment is only used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. An extension tube assembly for disposition at a suction inlet of a vacuum cleaner, the extension tube assembly comprising an elongate tubular member having an airflow path and a brush assembly, the tubular member comprising a rear attachment portion for engaging an inlet of the vacuum cleaner, a central region and a forward mouth portion, the brush assembly being movably disposed in association with the tubular member, the brush assembly being disposed in the forward mouth portion in a first condition to provide for dust removal during suction; in the second state, the brush assembly is retracted from the forward mouth position.

2. The extension pipe assembly of claim 1, wherein the brush assembly includes a coupling body provided to the tubular member and a brush disposed at a front end of the coupling body.

3. The extension tube assembly of claim 2, wherein said coupling body is a pivot bracket having ends pivotally connected to said central region, said pivot bracket being pivotally connected to said central region.

4. The extension tube assembly of claim 2, wherein said coupling body is a sleeve disposed about said central region, said sleeve being capable of limited movement about said central region.

5. The extension tube assembly of claim 4, wherein the inner wall of said sleeve is provided with a detent, said middle region being provided with a first detent and a second detent; when the clamping piece is matched with the first positioning part, the brush assembly is in a first state, and when the clamping piece is matched with the second positioning part, the brush assembly is in a second state.

6. The extension tube assembly of claim 5, wherein the first or second detent and the catch are a rib and groove engagement.

7. The extension tube assembly of claim 5, wherein the outer surface of the sleeve is provided with a button for controlling the action of the latching member to separate or engage the latching member from the positioning portion.

8. The extension pipe assembly of claim 1, wherein the outer surface of the tubular member is provided with first and second limiting ribs for limiting excessive movement of the sleeve; and the airflow channel of the tubular component is of a flat structure.

9. The extension pipe assembly of claim 4, wherein the front end surface of the sleeve in the first state is flush with and inclined with respect to the front end surface of the front mouth portion, and the brush is fitted to the front end surface of the sleeve.

10. A hand held vacuum cleaner comprising an extension tube assembly as claimed in any one of claims 1 to 9 and a hand held vacuum cleaner.

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