CN113668438B

CN113668438B - Air blowing and sucking conversion device and air blowing and sucking machine

Info

Publication number: CN113668438B
Application number: CN202110863889.6A
Authority: CN
Inventors: 金银刚; 陈洁
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-01-06
Anticipated expiration: 2041-07-29
Also published as: CN113668438A

Abstract

The invention discloses a blowing and sucking conversion device and a corresponding blowing and sucking machine, wherein the blowing and sucking conversion device comprises a main shell, a motor and a fan which are arranged in the main shell, and a conversion frame, wherein the conversion frame comprises a first channel, a second channel and a third channel; the main casing body includes an air intake and an air outlet, the conversion frame is connected with the main casing body, can carry out axial motion under the condition of not breaking the connection between conversion frame and the main casing body, blow the mode and induced draft the mode switch from this, wherein: in the blowing mode, the air inlet is communicated with the first channel, and the air outlet is communicated with the second channel; and in the air suction mode, the air inlet is communicated with the second channel, and the air outlet is communicated with the third channel. The invention realizes the conversion of the blowing and sucking functions in a translation mode, has simple structure, is easy to operate and has no use difficulty.

Description

Air blowing and sucking conversion device and air blowing and sucking machine

Technical Field

The invention relates to the technical field of cleaning tools, in particular to a blowing and sucking conversion device and a blowing and sucking fan.

Background

When sweeping dust, sweeps, leaves and other garbage, a fan structure with a blowing and sucking function is generally adopted for cleaning, the fan generally comprises a main shell, a blowing and sucking accessory detachably connected to the main shell, a motor positioned in the main shell, a fan driven by the motor, a handle connected to the main shell and the like, the blowing and sucking accessory generally comprises an air blowing pipe and an air suction pipe connected with an air duct, and the blowing and sucking machine needs to have blowing and sucking functions at the same time; the other scheme is to realize blowing and sucking conversion by rotating a motor assembly to switch an air port, and the scheme has the defects of complicated structure and high cost.

Patent document 1 discloses a blow-and-suction device including a housing including a first fitting portion provided with a first opening, a second fitting portion provided with a second opening, and a third fitting portion provided with a third opening; a motor disposed within the housing; a fan driven to rotate by the motor to generate an airflow entering the housing from the first opening; the blowing and sucking device also comprises a single-cavity air pipe which can be selectively connected with the first matching part or the second matching part in a matching way; in the suction mode, the single-cavity air pipe is positioned at a first position matched and connected with the first matching and connecting part, and airflow enters the shell from the single-cavity air pipe through the first opening and is blown out of the shell through the third opening after passing through the fan; in the blowing mode, the single-cavity air pipe is located at a second position matched and connected with the second matching and connecting part, air flow enters the shell from the first opening, enters the single-cavity air pipe from the second opening after passing through the fan, and is switched between the blowing mode and the suction mode by switching connection between the single-cavity air pipe and different matching and connecting parts on the shell.

Patent document 2 discloses a blowing and suction fan, which includes a casing composed of left and right fan housings, an air duct, an air impeller and a motor, wherein the casing is internally provided with an air inlet and an air exhaust passage which are communicated with each other, the air impeller is arranged in the air exhaust passage, a driving shaft of the motor is inserted into the casing and connected with the air impeller, a conversion joint assembly is arranged between the air duct and the casing, the conversion joint assembly is provided with an "L" -shaped wall air duct and a working air duct, the casing is provided with an air inlet and an air outlet, and the air inlet and the air outlet are switched by rotating the air duct.

Both realize the switching of pressure-vaccum mode through being connected between the tuber pipe of single channel and the host computer and switch, and the tuber pipe of single channel switches the structure, and when using, it is not very convenient to switch the operation, and operating personnel is difficult to switch, uses to have the difficulty.

Patent document 1: CN201721087515.5.

Patent document 2: CN202851398U.

Disclosure of Invention

The invention mainly aims to provide a blowing and sucking air conversion device which does not affect the blowing and sucking performance, has a simple structure, is easy to operate and can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a blowing and sucking conversion device comprises a main shell and a conversion frame, wherein the conversion frame comprises a first channel, a second channel and a third channel; the main casing body includes an air intake and an air outlet, the conversion frame is connected with the main casing body, can carry out axial motion under the condition of not breaking the connection between conversion frame and the main casing body, blow the mode and induced draft the mode switch from this, wherein: in the blowing mode, the air inlet is communicated with the first channel, and the air outlet is communicated with the second channel; and in the air suction mode, the air inlet is communicated with the second channel, and the air outlet is communicated with the third channel.

In several embodiments, the main casing part includes first casing part and second casing part that the axial is linked together, be provided with the first chamber that holds in the first casing part, it holds the chamber to be provided with the second in the second casing part, the first chamber that holds is used for setting up the fan, the second holds the chamber and is used for setting up the motor.

In several embodiments, the air inlet and the air outlet are both disposed on the first housing portion, the air inlet is in communication with the second accommodating cavity and is disposed coaxially, and the air outlet is in communication with the second accommodating cavity and is disposed radially.

In several embodiments, the first passage includes a first air opening and a second air opening, which are axially disposed, and the first passage is sleeved outside the first housing portion through one end of the second air opening and can axially move along the first housing portion.

In several embodiments, the second channel includes a third air opening and a fourth air opening, one end of the third air opening is detachably connected with the air pipe, one end of the fourth air opening is connected and communicated with the first channel, and the second channel is arranged on one side close to the first air opening.

In several embodiments, the third channel includes a fifth tuyere and a sixth tuyere which are axially arranged, one end of the fifth tuyere is detachably connected with a dust bag, one end of the sixth tuyere is connected and communicated with the first channel, and the third channel is arranged at one side close to the second tuyere.

In some embodiments, a sealing member is disposed on the first channel, and the sealing member is configured to open and close the first air opening.

In several embodiments, the sealing assembly includes a sealing cover and a plug-in unit disposed on the sealing cover, wherein a socket is disposed at one end of the first tuyere, and the plug-in unit is disposed in the socket and can rotate along the socket.

In several embodiments, the sealing cover is provided with a buckle body, one end of the first air opening is provided with a buckle seat, and the buckle body is matched with the buckle seat so as to fix the sealing cover on the first air opening.

In several embodiments, at least one sliding rail body is arranged on the outer wall of the first shell part along the axis of the first shell part, at least one sliding groove body is arranged on the inner wall of the first channel along the axis of the first channel, and the sliding rail body is inserted into the sliding groove body and can move along the sliding groove body; the outer wall of the first shell portion is provided with a cover plate and a limiting body, one end of the cover plate is connected with the limiting body, a gap exists between the cover plate and the first shell portion, one side of the first channel is provided with a notch, the notch extends to the second air port, the first channel is inserted and arranged between the cover plate and the first shell portion along the notch, and the notch can move along the limiting body.

Meanwhile, the invention also provides a blowing and sucking fan with the blowing and sucking conversion device.

Compared with the prior art, the invention has the following beneficial effects:

(1) The blowing and sucking functions are converted in an axial translation mode, the structure is simple, the operation is easy, the operation is very easy, and the difficulty is avoided;

(2) The air inlet and outlet modes of the air duct are unchanged, namely the positive and negative rotation of the motor is not required to be changed, and the blowing and sucking performance is not influenced;

(3) After the air pipe and the dust bag are installed, when the blowing and sucking functions are changed, the air pipe and the dust bag do not need to be replaced and disassembled, and the use is more convenient and faster.

Drawings

Fig. 1 is a schematic structural diagram of an overall blowing-sucking air conversion device according to an embodiment of the present invention;

fig. 2 is a schematic view of a separated state of a main housing and a transfer frame according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a further exploded view of FIG. 2;

FIG. 4 is a schematic structural view of a main housing portion according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a portion of a switching rack according to an embodiment of the present invention;

FIG. 6 is a cross-sectional schematic view of the transition frame of FIG. 5;

FIG. 7 is a schematic structural view of a seal assembly according to an embodiment of the present invention;

FIG. 8 is a schematic view of a structure in a blowing mode according to an embodiment of the present invention;

fig. 9 is a schematic structural view in an air suction mode according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.

Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of the present invention.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting and/or limiting of the invention.

For example, the terms "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "relative", "front-back-left-right" and the like indicate relative or absolute arrangements, and indicate not only such arrangements in a strict sense but also a state of being relatively displaced with a tolerance or an angle or a distance to the extent that the same function can be obtained.

As shown in fig. 1 to 9, the blowing and sucking conversion device provided in this embodiment mainly includes a main housing 100, a motor 11 disposed in the main housing 100, a fan 12, and a conversion frame 200, where the motor 11 and the fan 12 adopt a conventional structure in the field, and the motor drives an axial fan to rotate and then draw air, where the main housing 100 is composed of two half housings 1000 that are symmetrical and detachably connected, and when assembling, the motor and the fan are first installed in one of the half housings 1000, and then the other half housing 1000 is fastened, so as to implement installation between the main housing and the motor, and between the main housing and the fan.

The blowing and sucking fan is formed by the structure and used correspondingly.

The main housing 100 includes an air inlet 101 and an air outlet 102, the converting frame 200 is connected to the main housing 100, and the converting frame 200 and the main housing 100 can move axially without disconnecting from each other, so as to switch between an air blowing mode and an air suction mode.

Specifically, the main housing 100 includes a first housing portion 110 and a second housing portion 120 that are axially communicated, a first accommodating cavity 111 is provided in the first housing portion 110, and a second accommodating cavity 121 is provided in the second housing portion 120, so that the first accommodating cavity and the second accommodating cavity are coaxially arranged, and the diameter of the inner wall of the first accommodating cavity is larger than that of the inner wall of the second accommodating cavity, and thus, the first accommodating cavity 110 is used for setting the axial flow fan 12, and the second accommodating cavity 120 is used for setting the axial flow motor 11.

Here, the air inlet 101 and the air outlet 102 are both disposed on the first housing portion 110, the air inlet 101 is communicated with the second accommodating cavity 121 and disposed coaxially, the air outlet 102 is communicated with the second accommodating cavity 121 and disposed radially, and the air outlet 102 is selectively located right below the second accommodating cavity 121, and may be inclined to both sides to be adapted to the converting rack.

Here, the first passage 210 includes a first air opening 211 and a second air opening 212 which are axially arranged, the first passage 210 is a hollow tubular structure, and one end of the first passage 210, through the second air opening 212, is sleeved outside the first housing portion 110 and can axially move along the first housing portion 110.

Specifically, at least one sliding rail body 1010 is arranged on the outer wall of the first housing portion 110 along the axis of the first housing portion, two sliding rail bodies 1010 are generally arranged, the two sliding rail bodies are oppositely arranged on two sides of the outer wall of the first housing portion 110, at least one sliding groove body 1020 is arranged on the inner wall of the first channel 210 along the axis of the first channel, the two sliding groove bodies 1020 are corresponding to the sliding rail bodies 1010, the sliding groove bodies 1020 are groove structures on the inner wall of the first channel, and the sliding rail bodies 1010 are inserted into the sliding groove bodies 1020 and can move along the sliding groove bodies 1020, so that the axial movement process between the conversion frame and the main housing is achieved.

Meanwhile, a cover plate 1030 and a limiting body 1040 are arranged on the outer wall of the first housing part 110, one end of the cover plate 1030 is connected with the limiting body 1040, a gap exists between the cover plate 1030 and the first housing part 110, one side of the first channel 210 is provided with a cut 2010, the cut 2010 extends to the second air port 212, the first channel 210 is inserted between the cover plate 1030 and the first housing part 110 along the cut 2010, the cut 2010 can move along the limiting body 1040, the limiting body 1040 is matched with the cut to play a role in limiting the movement range of the conversion frame, when the tail end of the cut is clamped on the limiting body 1040, the conversion frame cannot continue to move towards one end of the main housing part, the limiting body 1040 is composed of a handle structure, the limiting body 1040 can be used as a handle in a hand-held mode, the limiting effect is achieved as a structure of the limiting body, meanwhile, the cover plate 1030 extends to the outer end of the first housing part 110 (namely extends to one side of the conversion frame after assembly), the cover plate plays a certain guiding and protecting role, and the first channel in the conversion frame can be conveniently sleeved, the conversion frame and the movement between the main housing part and the main housing part can be prevented from falling smoothly.

As shown in fig. 6, the second channel 220 includes a third tuyere 221 and a fourth tuyere 222, one end of the third tuyere 221 is detachably connected with the air pipe 300, one end of the fourth tuyere 222 is connected and communicated with the first channel 210, the second channel 220 is arranged at one side close to the first tuyere 211, the second channel 220 is obliquely arranged, the blowing and sucking angle is reasonable, the third channel 230 includes a fifth tuyere 231 and a sixth tuyere 232 which are axially arranged, one end of the fifth tuyere 231 is detachably connected with the dust collection bag 400, one end of the sixth tuyere 232 is connected and communicated with the first channel 210, and the third channel 230 is arranged at one side close to the second tuyere 212, that is, one end of the second channel is inserted into the connection position of the first channel and the third channel, so as to form a three-way effect.

The second channel 220 is connected with the air duct 300 by a quick-insertion type insertion structure, one end of the air duct is correspondingly sleeved on the extending surface of the second channel 200, and the third channel 230 is also connected with the dust bag 400, so that a pressing type elastic structure, a clamping structure or a threaded connection structure which is commonly used in the field can be adopted, and no further limitation is required.

Meanwhile, a sealing assembly is arranged on the first channel 210 and used for opening and closing the first air port 211, the sealing assembly comprises a sealing cover 510 and an insert 520 arranged on the outer end face of the sealing cover 510, the insert is elastic, a socket 530 is arranged at one end of the first air port 211, the insert 520 is arranged in the socket 530 and can rotate along the socket 530, two inserts are adopted, two ends of the two inserts are free ends, the insert is of a columnar structure, therefore, the socket is provided with two inserts, the insert is provided with insertion holes matched with the insert in shape, such as a cylinder shape, after the insert is inserted into the insertion holes, the insert can rotate in the insertion holes, the rotation of the sealing cover is driven, and therefore, the opening and closing effects of the sealing cover and the first air port are achieved.

In order to facilitate the fixing of the sealing cover when the sealing cover closes the first tuyere, a buckle 540 is arranged on the sealing cover 510, the buckle has certain elasticity, the buckle is selectively arranged at the opposite end of the plug-in unit, a buckle seat 550 is arranged at one end of the first tuyere 211, the buckle 540 is matched with the buckle seat 550 to fix the sealing cover 510 on the first tuyere 211, the fixing can be realized by buckling the buckle on the buckle seat, and the sealing cover can be separated from the first tuyere by lifting the buckle upwards.

Wherein:

as shown in fig. 8, in the blowing mode, the conversion frame is pushed to one side of the main housing until the conversion frame cannot be pushed to one side of the main housing continuously, at this time, the air inlet 101 aligns with the first channel 210 (the third channel is located below the second housing), and at the same time, the sealing cover is opened, so that the air inlet 101 is communicated with the first channel 210, at this time, the air outlet 102 is communicated with the second channel 220, the fan 12 moves, and the air enters the air inlet from the first channel, then enters the air outlet 102, then passes through the second channel 220, and is led out by the air duct 300 to realize a blowing effect.

As shown in fig. 9, when the blowing mode is switched to the suction mode, the switching frame is pushed away from the main housing, when one end of the second air inlet of the first channel is flush with the tail end of the first housing, the third channel is just below the air outlet, at this time, the sealing cover is closed, the fan 12 moves, and the air enters the second channel 220 and the air inlet 101 in sequence from the air pipe, then enters the air outlet 102 and is guided to the dust collection bag 400 from the third channel 230, so that the dust collection effect is achieved.

It should be noted that, a filter screen structure may be further disposed at the first air port of the first channel to filter the induced air.

The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All manner of description herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.

The present invention describes preferred embodiments, including the best mode known to the inventors for carrying out the invention. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications encompassed within the spirit and scope of the invention as defined by the claims. Moreover, any and all possible variations of the above-described elements are encompassed by the present invention unless otherwise indicated herein or otherwise clearly contradicted by context.

Description of the marks

Main housing 100

First housing part 110

Slide rail body 1010

Chute body 1020

Cover plate 1030

Spacing body 1040

First accommodation cavity 111

Second housing part 120

Second accommodation chamber 121

Half-shell 1000

Air inlet 101

Air outlet 102

Motor 11

Fan 12

Conversion rack 200

First channel 210

First tuyere 211

Second tuyere 212

Incision 2010

Second channel 220

Third tuyere 221

Fourth tuyere 222

Third channel 230

Fifth tuyere 231

Sixth tuyere 232

Air duct 300

Dust bag 400

Closed cover 510

Plug-in 520

Socket 530

Button body 540

A buckle seat 550.

Claims

1. A kind of air-blowing and air-sucking conversion equipment, including the main casing, characterized by, also include a conversion shelf, the said conversion shelf includes a first channel, a second channel and a third channel;

the main casing body includes an air intake and an air outlet, the conversion frame is connected with the main casing body, can carry out axial motion under the condition of not breaking the connection between conversion frame and the main casing body, can realize the switching between the mode of blowing and the mode of induced drafting from this, wherein:

in the blowing mode, the air inlet is communicated with the first channel, and the air outlet is communicated with the second channel;

and in the air suction mode, the air inlet is communicated with the second channel, and the air outlet is communicated with the third channel.

2. The air blowing and suction conversion device according to claim 1, wherein the main housing comprises a first housing part and a second housing part which are axially communicated, a first accommodating cavity is formed in the first housing part, a second accommodating cavity is formed in the second housing part, the first accommodating cavity is used for accommodating the fan, and the second accommodating cavity is used for accommodating the motor.

3. The air blowing and sucking conversion device according to claim 2, wherein the air inlet and the air outlet are both disposed on the first housing portion, the air inlet is communicated with the second accommodating cavity and coaxially disposed, and the air outlet is communicated with the second accommodating cavity and radially disposed.

4. The air-blowing and suction conversion device according to claim 3, wherein the first passage comprises a first air port and a second air port which are axially arranged, and one end of the first passage is sleeved outside the first housing part through the second air port and can axially move along the first housing part.

5. The air blowing and suction conversion device according to claim 4, wherein the second channel comprises a third air port and a fourth air port, one end of the third air port is detachably connected with an air pipe, one end of the fourth air port is connected and communicated with the first channel, and the second channel is arranged on one side close to the first air port.

6. The air-blowing and suction conversion device according to claim 5, wherein the third channel comprises a fifth tuyere and a sixth tuyere which are axially arranged, one end of the fifth tuyere is detachably connected with the dust collection bag, one end of the sixth tuyere is connected and communicated with the first channel, and the third channel is arranged at one side close to the second tuyere.

7. The air-blowing and air-sucking conversion device as claimed in claim 6, wherein a sealing member is disposed on the first passage, and the sealing member is configured to open and close the first air port.

8. The air-blowing and suction conversion device according to claim 7, wherein the sealing assembly comprises a sealing cover and an insert arranged on the sealing cover, the first air port is provided with a socket at one end, and the insert is arranged in the socket and can rotate along the socket.

9. The air blowing and suction switching device according to claim 8, wherein the sealing cover is provided with a buckle, one end of the first tuyere is provided with a buckle seat, and the buckle body is matched with the buckle seat to fix the sealing cover on the first tuyere.

10. The air blowing and sucking conversion device according to claim 4, wherein at least one sliding rail body is arranged on the outer wall of the first housing part along the axis direction of the first housing part, at least one sliding groove body is arranged on the inner wall of the first channel along the axis direction of the first channel, and the sliding rail body is inserted into the sliding groove body and can move along the sliding groove body; the outer wall of the first shell part is provided with a cover plate and a limiting body, one end of the cover plate is connected with the limiting body, a gap exists between the cover plate and the first shell part, one side of the first channel is provided with an incision, the incision extends to the second air port, the first channel is inserted and arranged between the cover plate and the first shell part along the incision, and the incision can move along the limiting body.

11. A blowing and sucking fan characterized by having the blowing and sucking fan converting device according to any one of claims 1 to 10.