CN115224859B - Anti-backflow dust collector motor and working method thereof - Google Patents
Anti-backflow dust collector motor and working method thereof Download PDFInfo
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- CN115224859B CN115224859B CN202110427726.3A CN202110427726A CN115224859B CN 115224859 B CN115224859 B CN 115224859B CN 202110427726 A CN202110427726 A CN 202110427726A CN 115224859 B CN115224859 B CN 115224859B
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- locking
- air inlet
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- plug
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of motors, in particular to a backflow-preventing dust collector motor and a working method thereof, comprising the following steps: the motor comprises a housing suitable for accommodating a motor body and a housing fixed at the bottom of the housing, wherein the housing is suitable for accommodating an impeller, and the impeller is linked with the motor body; an air inlet is formed in one side end face of the shell, and an air inlet fan is arranged in the air inlet; the other side end face of the shell is provided with a plurality of air outlets suitable for discharging dust, and a unidirectional air tap is arranged on the shell at the air outlets; the one-way air tap is reversely buckled at the air outlet in a funnel shape, wherein when the motor body works, the one-way air tap bulges to open the air outlet; when the motor body is suspended, the one-way air tap is closed to block the air outlet. According to the backflow-preventing dust collector motor provided by the invention, when the motor body is suspended, the one-way air nozzle is in a closed state, so that the one-way air nozzle can block the air outlet, dust can not flow back into the shell, and the service life of the motor body is ensured.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a backflow-preventing dust collector motor and a working method thereof.
Background
The working principle of the dust collector is that the dust collector motor rotates at a high speed, air is sucked from the suction inlet, a certain vacuum is generated in the dust box, specifically, the dust collector motor is clamped into the dust collector, the air inlet of the dust collector motor is aligned with the suction inlet of the dust collector, dust in the sucked air can penetrate out from the back of the dust collector motor, and the specific dust collector motor structure is as follows: the dust collector comprises a hood and a shell, wherein the hood is used for accommodating a motor body, the shell is used for accommodating an impeller, an air inlet is formed in the shell and is positioned on one side end face of the shell away from the hood, the impeller is driven to rotate through the motor body, so that negative air pressure is formed inside the shell to enable the air inlet to have suction, the shell and the hood are installed to the air inlet to be aligned with the suction inlet of the dust collector when installed, an air inlet fan can be installed in the air inlet for improving the suction, the air inlet fan and the impeller are coaxially arranged, the air inlet fan and the impeller are linked, namely, the air inlet fan is controlled to rotate by the motor body, a baffle is arranged at the joint of the air inlet fan and the shell in the hood, so that dust is prevented from entering the hood to abrade the motor body, and the following problems exist: the inhaled dust can be discharged from the back of the shell, and the dust can be prevented from flowing back into the shell due to the operation of the motor body, but when the motor body stops operating, the dust can flow back into the shell, so that the re-rotation load of the motor body is larger.
In order to solve the above problems, it is necessary to design a vacuum cleaner motor that prevents backflow.
Disclosure of Invention
The invention aims to provide a backflow-preventing dust collector motor.
In order to solve the above technical problems, the present invention provides a backflow-preventing motor of a vacuum cleaner, comprising: the motor comprises a hood suitable for accommodating a motor body and a casing fixed at the bottom of the hood, wherein the casing is suitable for accommodating an impeller, and the impeller is linked with the motor body; an air inlet is formed in one side end face of the shell, and an air inlet fan is arranged in the air inlet; a plurality of air outlets suitable for discharging dust are formed in the end face of the other side of the shell, and a one-way air tap is arranged on the shell and positioned at the air outlets; the one-way air tap is reversely buckled at the air outlet in a funnel shape, and when the motor body works, the one-way air tap bulges to open the air outlet; when the motor body is suspended, the one-way air tap is closed to block the air outlet.
Further, the one-way air tap comprises an air tap body reversely buckled at the air outlet and a plug fixed at the top of the air tap body; the outer side wall and the inner side wall of the air tap body are spherical surfaces, and an air cavity is formed in the air tap body; an air outlet channel is formed in the plug, and the air outlet channel is communicated with the air cavity; when the motor body works, the air outlet channel is opened to enable air to pass through; when the motor body is suspended, the plug is closed.
Further, two opposite side walls of the air outlet channel are respectively provided with a male plug and a female plug; the plug male head is matched with the plug female head; the male plug and the female plug are positioned at the opening of the air outlet channel, and when the motor body works, the male plug and the female plug are separated so that air passes through; when the motor body pauses, the plug male connector is attached to the plug female connector, so that the plug is closed.
Further, the opposite side walls of the male plug and the female plug are respectively provided with a plurality of ventilation grooves, the bottoms of the male plug and the female plug are respectively provided with a plurality of hook parts, and the hook parts are positioned between two adjacent ventilation grooves; wherein the wire passing through the air outlet can be hung on the hook part.
Further, the air outlet consists of an arc-shaped waist-shaped groove and a notch positioned at the outer side of the waist-shaped groove; the notch forms a straight edge and an arc edge, and the arc edge is concentric with the shell.
Further, a locking part is coaxially arranged at the opening of the air inlet, and the locking part can axially slide along the air inlet; the surface of the air inlet fan is provided with a pushing part, and the pushing part can slide along the radial direction of the air inlet fan; the locking part can be inserted into the pushing part; the air inlet fan comprises an air inlet shaft coaxially arranged with the motor body, a plurality of air inlet fan blades fixed on the air inlet shaft and an air inlet sleeve sleeved in the air inlet; the inner side wall of the air inlet sleeve is provided with an annular cutter propping groove, and the outer side edge of the air inlet fan blade is propped against the inner side wall of the cutter propping groove; after the wire materials wound on the air inlet fan blades are pushed into the cutter supporting groove by the pushing part, the air inlet fan blades can cut off the wire materials.
Further, a sliding groove extending axially is formed in the upper surface of the air inlet fan blade, and the width of the sliding groove gradually increases from the air inlet shaft to the air inlet sleeve; the pushing part comprises a pushing block which is connected in the sliding groove in a sliding way and a pushing spring which is fixed on the inner side wall of the sliding groove; the pushing spring is positioned at one side close to the air inlet shaft; a locking groove is formed in the top of the pushing block, and the locking groove is matched with the locking part; after the locking part releases the pushing block, the pushing block can push the wire material and stretch the pushing spring; after the pushing spring is rebounded and pulled back to the pushing block, the locking part can be inserted into the locking groove.
Further, a release groove is formed at the end part of the air inlet shaft; the locking part comprises a locking spring, a locking disc body and a plurality of locking rods, wherein one end of the locking spring is fixed in the escape groove, the locking disc body is fixed at the other end of the locking spring, and the locking rods are fixed at the bottom of the locking disc body; the diameter of the locking disc body is larger than that of the air inlet shaft; the upper end face of the locking disc body protrudes out of the upper end face of the air inlet sleeve; the locking rod can be inserted into the locking groove after the locking disc body is pressed until the upper end face of the locking disc body is flush with the upper end face of the air inlet sleeve; after the locking disc body is loosened, the locking spring rebounds to drive the locking rod to be separated from the locking groove.
Further, a release groove is formed at the end part of the air inlet shaft; the locking part comprises a locking spring, a locking disc body and a plurality of locking rods, wherein one end of the locking spring is fixed in the escape groove, the locking disc body is fixed at the other end of the locking spring, and the locking rods are fixed at the bottom of the locking disc body; the diameter of the locking disc body is larger than that of the air inlet shaft; the upper end face of the locking disc body protrudes out of the upper end face of the air inlet sleeve; the upper end surface of the pushing block is provided with a guide surface, the guide surface is obliquely arranged, and the thickness of the pushing block is gradually reduced from the air inlet to the cutter supporting groove; the locking rod can be inserted into the locking groove after the locking disc body is pressed until the upper end face of the locking disc body is flush with the upper end face of the air inlet sleeve; after the locking disc body is loosened, the locking spring rebounds to drive the locking rod to be separated from the locking groove.
The invention provides a working method of a backflow-preventing dust collector motor, which comprises the following steps: when the hood and the shell are removed, the locking spring rebounds to push the upper end surface of the locking disc body to protrude out of the upper end surface of the air inlet sleeve, and then the locking rod is separated from the locking groove; the motor body rotates to drive the air inlet shaft to rotate so as to enable the air inlet fan blade to rotate, and then the pushing block pushes the wire material wound on the air inlet fan blade to the cutter supporting groove; pre-cutting off the wire material by a push knife, and cutting off the wire material by a knife tip; the sucked dust and wire materials are discharged through the air outlet channel; suspending the motor body, and pulling back the pushing block through the rebound of the pushing spring; the hood and the shell are installed, and slide along the guide surface through the locking rod and are inserted into the locking groove; the male plug and the female plug are attached to each other to block the air outlet; dust collection work is carried out through rotation of the motor body.
The invention has the beneficial effects that the end face of the other side of the shell is provided with the plurality of air outlets suitable for discharging dust, namely the air inlets are opposite to the air outlets, meanwhile, the shell is provided with the one-way air tap which is positioned at the position of the air outlets and extends towards the direction far away from the air inlets, the one-way air tap is reversely buckled at the air outlets in a funnel shape, the air in the shell can be discharged outwards only from the inside of the shell, and particularly, when the motor body works, the one-way air tap is bulged from inside to outside, so that the one-way air tap can be ventilated outwards, namely the air outlets are opened, and sucked dust and air can sequentially pass through the air outlets and the one-way air tap to be discharged; when the motor body pauses, the one-way air tap is in a closed state, and then the one-way air tap can block the air outlet, and then dust can not flow back into the casing, so that the service life of the motor body is guaranteed.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a first perspective view of a preferred embodiment of an anti-reflux vacuum cleaner motor of the present invention;
FIG. 2 is a schematic view of a preferred embodiment of a one-way air cap of the present invention;
FIG. 3 is a schematic view of the structure of the preferred embodiment of the air outlet of the present invention;
FIG. 4 is a second perspective view of a preferred embodiment of an anti-reflux vacuum cleaner motor of the present invention;
fig. 5 is a perspective view of a preferred embodiment of an inlet fan of the present invention;
FIG. 6 is an enlarged partial view of portion A of FIG. 5;
FIG. 7 is a perspective view of a preferred embodiment of an air intake fan blade of the present invention;
FIG. 8 is a schematic view of the construction of a preferred embodiment of the inventive take-up assembly;
fig. 9 is a schematic structural view of a preferred embodiment of the locking portion of the present invention.
In the figure:
a hood 1;
the air conditioner comprises a shell 2, an air inlet 21, an air outlet 22, a waist-shaped groove 221, a notch 222, a straight edge 2221 and an arc edge 2222;
the air inlet fan 3, the air inlet shaft 31, the escape groove 311, the air inlet fan blade 32, the knife tip 321, the sliding groove 322, the air inlet sleeve 33 and the knife abutting groove 331;
a locking part 4, a locking spring 41, a locking disk 42 and a locking lever 43;
the pushing part 5, the pushing block 51, the locking groove 511, the guide surface 512, the guide block 52, the propping assembly 53, the propping spring 531, the propping block 532, the pushing spring 54, the pushing knife 55 and the cutting edge 551;
the one-way air tap 6, the air tap body 61, the air cavity 611, the plug 62, the air outlet passage 621, the plug male connector 63, the plug female connector 64, the ventilation groove 65 and the hook 66.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
Example 1
As shown in fig. 1 to 9, the working principle of the vacuum cleaner is that the motor of the vacuum cleaner rotates at a high speed, and sucks air from the suction inlet to generate a certain vacuum in the dust box, specifically, the motor of the vacuum cleaner is clamped into the vacuum cleaner, so that the air inlet 21 of the motor of the vacuum cleaner is aligned with the suction inlet of the vacuum cleaner, and dust in the sucked air can pass out from the back of the motor of the vacuum cleaner, and the specific motor structure of the vacuum cleaner is as follows: the dust collector comprises a hood 1 and a housing 2, wherein the hood 1 is used for accommodating a motor body, the housing 2 is used for accommodating an impeller, an air inlet 21 is formed in the housing 2 and is positioned on one side end face of the housing 2 far away from the hood 1, the impeller is driven to rotate by the motor body, so that negative air pressure is formed in the housing 2 to enable the air inlet 21 to have suction, the housing 2 and the housing 1 are mounted to the air inlet 21 aiming at the suction inlet of the dust collector when mounted, in order to improve the suction, an air inlet fan 3 can be mounted in the air inlet 21, the air inlet fan 3 and the impeller are coaxially arranged, the air inlet fan 3 and the impeller are linked, namely the air inlet fan 3 is controlled to rotate by the motor body, a baffle is arranged at the joint of the housing 1 and the housing 2, so that dust is prevented from entering the housing 1 to abrade the motor body, and the following problems are solved: the sucked dust is discharged from the back of the casing 2, and the dust is prevented from flowing back into the casing 2 due to the operation of the motor body, but when the motor body stops operating, the dust flows back into the casing 2, so that the re-rotation load of the motor body is larger, and in order to solve the above problems, the following scheme is required.
A plurality of air outlets 22 suitable for discharging dust are formed in the end face of the other side of the casing 2, namely an air inlet 21 and the air outlet 22 are arranged oppositely, meanwhile, a one-way air tap 6 is arranged on the casing 2, the one-way air tap 6 is positioned at the position of the air outlet 22, the one-way air tap 6 extends in the direction away from the air inlet 21, the one-way air tap 6 is reversely buckled at the air outlet 22 in a funnel shape, the one-way air tap 6 enables air in the casing 2 to be discharged outwards only from the inside of the casing 2, and particularly, when the motor body works, the one-way air tap 6 is bulged from inside to outside so that the one-way air tap 6 can be ventilated outwards, namely the air outlet 22 is opened, and sucked dust and air can sequentially pass through the air outlet 22 and the one-way air tap 6 to be discharged; when the motor body is in a pause state, the one-way air nozzle 6 is in a closed state, and then the one-way air nozzle 6 can block the air outlet 22, so that dust cannot flow back into the machine shell 2, and the service life of the motor body is guaranteed.
Optionally, the unidirectional air tap 6 includes an air tap body 61 reversely buckled at the air outlet 22, and a plug 62 fixed at the top of the air tap body 61, and air and dust discharged from the air outlet 22 can be sequentially discharged out of the casing 2 through the air tap body 61 and the plug 62, specifically, the outer side wall and the inner side wall of the air tap body 61 are spherical, so that an air cavity 611 is formed inside the air tap body 61; an air outlet channel 621 is formed in the plug 62, the air outlet channel 621 is communicated with the air cavity 611, and air discharged from the air outlet 22 sequentially passes through the air cavity 611 and the air outlet channel 621 to be discharged out of the casing 2; when the motor body works, the air outlet passage 621 is in an open state so as to allow air to pass through; when the motor body is suspended, the plug 62 is closed to block the air outlet 22, so that dust outside the casing 2 cannot enter the casing 2.
In order to close the plug 62, two opposite side walls of the air outlet channel 621 are respectively provided with a male plug 63 and a female plug 64; the plug male connector 63 is matched with the plug female connector 64; the male plug 63 and the female plug 64 are positioned at the opening of the air outlet channel 621, and when the motor body works, the male plug 63 is separated from the female plug 64 so as to allow air to pass through; when the motor body is suspended, the plug male connector 63 is attached to the plug female connector 64, so that the plug 62 is closed.
It should be noted that, after the dust collector is not used for a long time, the male plug 63 and the female plug 64 are easy to adhere together, so that when the dust collector is used next time, the male plug 63 cannot be separated from the female plug 64, and dust and air in the suction casing 2 cannot be discharged.
The dust and the wire materials enter the shell 2, and a plurality of hook parts 66 can be arranged at the bottoms of the male plug 63 and the female plug 64, and the hook parts 66 are positioned between two adjacent ventilation grooves 65; the wire passing through the air outlet can be hung on the hook 66, and when the wire is cleaned, the wire is fished out only after the male plug 63 and the female plug 64 are unfolded, so that the situation that the wire is scattered and wound is avoided.
Optionally, the air outlet 22 is formed by an arc-shaped waist-shaped slot 221 and a notch 222 located outside the waist-shaped slot 221; the notch 222 forms a straight edge 2221 and an arc edge, the arc edge 2222 is concentric with the casing 2, air and dust in the casing 2 are easier to discharge out of the casing 2 through the arrangement of the notch 222, and the arc edge 2222 is close to the outer side wall of the casing 2 through the arrangement of the arc edge 2222, so that dust which rotates to the inner side wall of the casing 2 through the impeller is easier to discharge out of the air outlet 22.
It should be noted that the wire material sucked into the air is wound on the air inlet fan 3, so that the load of the motor body driving the air inlet fan 3 is large, and the motor body is easy to damage; meanwhile, dust sucked into the air can adhere to the air inlet fan 3, and the load on the motor body is large. In order to solve the above problems, the following scheme is required.
The air inlet fan 3 is coaxially provided with a locking part 4, the locking part 4 is positioned at the opening of the air inlet 21, the locking part 4 can axially slide along the air inlet fan 3, the axial sliding of the locking part 4 is realized through the installation of the shell 2 and the hood 1, the locking part 4 is pushed by the inner frame of the dust collector to slide in the installation process, and the locking part 4 is reset in the disassembly process; a pushing part 5 is arranged on the surface of the air inlet fan 3, and the pushing part 5 can slide along the radial direction of the air inlet fan 3; the locking part 4 can be inserted into the pushing part 5, specifically, in the disassembling process, the locking part 4 resets and simultaneously loosens the pushing part 5, so that the pushing part 5 slides along the surface of the air inlet fan 3 under the action of centrifugal force while the air inlet fan 3 rotates, dust on the surface of the air inlet fan 3 can be scraped in the sliding process of the pushing part 5, meanwhile, wires wound on the surface of the air inlet fan 3 can be loosened and pushed to the outer side of the air inlet fan 3, and the wires are cut off and chopped by the air inlet fan 3 and then discharged; in the installation, the pushing part 5 can be restored to initial position, when installing casing 2 and aircraft bonnet 1 this moment, locking part 4 can be along air inlet fan 3 axial slip and insert pushing part 5, thereby pushing part 5 can not slide when motor body drive impeller and air inlet fan 3 pivoted, pushing part 5 is locked in the dust absorption working process promptly, the effect of dust absorption when having realized the installation through such a mode, clear effect when dismantling, and it is quick convenient to switch between two modes, motor body's load has been reduced, in order to guarantee motor body's life.
In this embodiment, the thread may be hair, or may be a strip-shaped object such as a paper strip, and in a general use process, hair is often used, and meanwhile, after a plurality of strands of hair are wound, the toughness is higher, and the hair is more difficult to cut.
The structure of the specific air intake fan 3 is as follows, the air intake fan 3 includes an air intake shaft 31 coaxially arranged with the motor body, the air intake shaft 31 is fixed with the rotating shaft of the impeller, thus realizing the rotation of the motor body driving the air intake shaft 31, a plurality of air intake fan blades 32 are fixed on the air intake shaft 31, the invention solves the problem that dust adheres or wire material is wound on the air intake fan blades 32, the pushing part 5 is also arranged on the surface of the air intake fan blades 32, an air intake sleeve 33 is sleeved in the air intake 21, an annular cutter abutting groove 331 is arranged on the inner side wall of the air intake sleeve 33, the position of the cutter abutting groove 331 corresponds to the position of the air intake fan blades 32, the outer side edge of the air intake fan blades 32 abuts against the inner side wall of the cutter abutting groove 331, the air intake fan blades 32 are in line contact with the inner side wall of the cutter abutting groove 331, the contact area between the air intake fan blades 32 and the cutter abutting groove 331 is increased, thereby improving the cutting effect between the air intake fan blades 32 and the cutter abutting groove 331; after the wire wound around the air inlet fan blade 32 is pushed into the cutter supporting groove 331 by the pushing portion 5, the air inlet fan blade 32 can cut off the wire.
In order to facilitate air suction, the air inlet fan blade 32 may be designed as a gull wing shape, and it should be noted that, although the air inlet fan blade 32 is designed as a gull wing shape structure in the prior art, the air inlet fan blade 32 may also be designed as a structure with thick middle and thin two sides, but only the wire is broken by friction, so that cutting of the wire is difficult to achieve, in order to solve the above problem, a scheme may be adopted in which the outer side edge of the air inlet fan blade 32 has a knife tip 321, the knife tip 321 abuts against the inner side wall of the knife abutting groove 331, the broken wire is changed into cutting of the wire by abutting the knife tip 321 against the knife abutting groove 331, so as to facilitate cutting of the wire, the knife tip 321 is arc-shaped, and the contact length between the knife tip 321 and the inner side wall of the knife abutting groove 331 is larger, and the cutting effect of the knife tip 321 on the wire is better, and the knife tip 321 and the knife abutting groove 331 are coaxially arranged, so as to ensure cutting stability of the knife tip 321 on the wire; specifically, after the wire is pushed into the cutter supporting groove 331, the wire is cut by the rotating cutter point 321.
In order to push the wire, an axially extending sliding groove 322 is formed on the upper surface of the air inlet fan blade 32, and the width of the sliding groove 322 gradually increases from the air inlet shaft 31 to the air inlet sleeve 33, so that the sliding groove 322 extends from the air inlet shaft 31 to the air inlet sleeve 33, and the pushing part 5 slides along the sliding groove 322 from the air inlet shaft 31 to the air inlet sleeve 33 to push the wire.
The specific pushing part 5 has the structure as follows, the pushing part 5 comprises a pushing block 51 slidingly connected in the sliding groove 322, specifically, a guiding block 52 is arranged at the bottom of the pushing block 51, the guiding block 52 is inserted in the sliding groove 322, in the rotating process of the air inlet fan blade 32, the guiding block 52 slides from the air inlet shaft 31 to the air inlet sleeve 33 under the action of centrifugal force, the guiding block 52 slides along the sliding groove 322 to realize the sliding of the pushing block 51, meanwhile, the width of the pushing block 51 is larger than that of the guiding block 52, the pushing block 51 is erected on the surface of the air inlet fan blade 32, dust on the surface of the air inlet fan blade 32 can be scraped in the sliding process of the pushing block 51, and the surface of the air inlet fan blade 32 is a curved surface, so that the bottom surface of the pushing block 51 is attached to the air inlet fan blade 32, namely, the bottom of the pushing block 51 can be designed to be flexible, and the pushing block 51 can keep in contact with the upper surface of the air inlet fan blade 32, so that the scraping effect on the air inlet fan blade 32 is better.
Since the sliding groove 322 is formed in a shape that one end of the sliding groove 322 close to the air inlet sleeve 33 is wide and one end of the sliding groove 322 close to the air inlet shaft 31 is narrow, in order to ensure that the guide block 52 can slide in the sliding groove 322, a scheme is required to be designed that the sliding groove 322 is formed in an inverted T shape, namely the sliding groove 322 is formed by a structure with a thin upper part and a thick lower part; two propping assemblies 53 are arranged at the bottom mirror image of the pushing block 51, the two propping assemblies 53 are respectively positioned at two sides of the guide block 52, the propping assemblies 53 extend oppositely, and the propping assemblies 53 prop against the inner side wall of the sliding groove 322; the propping assembly 53 comprises a propping spring 531, one end of which is fixedly connected with the guide block 52 at the bottom of the pushing block 51, a propping block 532 is fixed at the other end of the propping spring 531, the propping block 532 is propped against the side wall of the wide part in the sliding groove 322, the guide block 52 can be clamped in the sliding groove 322 through the resilience force of the propping spring 531, the propping spring 531 is in a stretching state in the sliding process of the pushing block 51 from the air inlet shaft 31 to the knife propping groove 331, at the moment, the friction force between the pushing block 51 and the sliding groove 322 is small, and the wire is easier to push the wire, so that the wire is cut; when the pushing block 51 is pulled back from the cutter abutting groove 331 to the air inlet shaft 31, the jacking spring 531 is continuously compressed, the friction force between the jacking block 532 and the sliding groove 322 is continuously increased, and further the sliding stability of the pushing block 51 is improved, at the moment, the locking effect of the locking part 4 on the pushing block 51 is better, and the condition that the pushing block 51 is accidentally fired during dust collection work is avoided.
In the present embodiment, since the width of the sliding groove 322 gradually increases from the air inlet shaft 31 toward the cutter abutting groove 331, the two side walls of the sliding groove 322 are not parallel to each other, but inclined in a trapezoid shape, so that in order to achieve a good abutting effect between the abutting block 532 and the inner side wall of the sliding groove 322,
in order to realize automatic return to the initial position after the pushing block 51 pushes the wire, a pushing spring 54 is fixed on the inner side wall of the sliding groove 322, the pushing spring 54 is positioned at one side close to the air inlet shaft 31, the pushing spring 54 is fixedly connected with the pushing block 51, the pushing block 51 pushes the wire and stretches the pushing spring 54, after the wire is cut, the motor body is stopped to stop the rotation of the air inlet fan blade 32, and the pushing spring 54 rebounds to pull the pushing block 51 back to the initial position.
In order to realize locking of the pushing block 51, a locking groove 511 is formed at the top of the pushing block 51, and the locking groove 511 is adapted to the locking part 4; after the locking part 4 releases the pushing block 51, the pushing block 51 can slide while the air inlet fan blade 32 rotates, and after the pushing spring 54 pulls the pushing block 51 back to the initial position, the locking part 4 can be inserted into the locking groove 511, so as to lock the pushing block 51.
It should be noted that, the more the wire material wound on the air inlet fan blade 32, the greater the resistance of the wire material to the pushing block 51, when the resistance of the wire material to the pushing block 51 is greater than the centrifugal force of the air inlet fan blade 32 to the pushing block 51, the pushing block 51 cannot slide along the sliding groove 322, and the cleaning effect of the air inlet fan blade 32 cannot be achieved.
It should be noted that, due to the existence of the pushing block 51, there is a gap between the push knife 55 and the air inlet shaft 31, if the wire is wound between the gap, the pushing block 51 cannot push the wire in the area, in order to solve the above problem, it is necessary to design a scheme that the push knife 55 is obliquely arranged, and the specific push knife 55 is inclined towards the air inlet shaft 31, so that the wire wound on the push knife 55 also deviates towards the knife abutting groove 331 along the push knife 55, so that the push knife 55 pre-cuts the wire, and meanwhile, when the wire is wound on the air inlet fan blade 32, the wire can be blocked from deviating towards the air inlet shaft 31 due to the existence of the push knife 55.
In order to realize the locking of the pushing block 51, a pull-out groove 311 is formed at the end of the air inlet shaft 31, and the pull-out groove 311 is positioned at one side close to the suction inlet of the dust collector; the specific locking part 4 has the structure as follows, the locking part 4 comprises a locking spring 41 with one end fixed in the escape groove 311, a locking disc 42 fixed at the other end of the locking spring 41, the diameter of the locking disc 42 is larger than that of the air inlet shaft 31, a plurality of locking rods 43 are fixed at the bottom of the locking disc 42, each locking rod 43 surrounds the outer ring of the air inlet shaft 31, the locking rods 43 extend from top to bottom, and the locking rods 43 are matched with the locking grooves 511; when the locking spring 41 is not compressed, the upper end surface of the locking disc body 42 protrudes out of the upper end surface of the air inlet sleeve 33, and pressing the locking disc body 42 can compress the locking spring 41, but the locking disc body 42 can only be pressed until the upper end surface of the locking disc body 42 is flush with the upper end surface of the air inlet sleeve 33 at most; when the casing 2 and the hood 1 are installed, that is, when the air inlet 21 corresponds to the suction inlet of the dust collector, the locking disc 42 is extruded by the frame of the suction inlet of the dust collector, the locking disc 42 compresses the locking spring 41, and when the locking disc 42 is extruded until the upper end surface of the locking disc 42 is flush with the upper end surface of the air inlet sleeve 33, the locking rod 43 can be automatically inserted into the locking groove 511; when the shell 2 and the hood 1 are disassembled, the suction inlet of the dust collector releases the locking disc body 42, the locking spring 41 rebounds to push the locking disc body 42 to protrude out of the upper end surface of the air inlet sleeve 33, and the locking disc body 42 drives the locking rod 43 to be separated from the locking groove 511, so that the pushing block 51 is released.
It should be noted that, after long-time use, the restoring capability of the pushing spring 54 is reduced, when the pushing block 51 is pulled back by the pushing spring 54, the pushing block 51 may not return to the initial position, that is, the position of the locking rod 43 corresponding to the locking groove 511, that is, the locking rod 43 may only be inserted on the upper end surface of the pushing block 51 and not be inserted into the locking groove 511, and thus the locking effect on the pushing block 51 cannot be achieved, in order to solve the above-mentioned problem, it is necessary to design a scheme that a guiding surface 512 is provided on the upper end surface of the pushing block 51, and the guiding surface 512 is inclined, the pushing knife 55 is fixed on the guiding surface 512, the thickness of the pushing block 51 gradually decreases from the air inlet shaft 31 to the knife abutting groove 331, and when the locking disc 42 is pressed to lock the locking rod 43 to lock the pushing block 51, the bottom of the locking rod 43 is firstly contacted with the guiding surface 512, and the locking rod 43 can slide into the locking groove 511 along the guiding surface 512 to ensure that the locking rod 43 can lock the pushing block 51.
Example two
Other parts are different from the first embodiment in that the second embodiment also provides a working method of the anti-backflow dust collector motor, wherein the structure of the anti-backflow dust collector motor is the same as that of the first embodiment, and the description is omitted here.
Further, when the hood 1 and the casing 2 are removed, the locking spring 41 resiliently pushes the upper end surface of the locking disc 42 to protrude from the upper end surface of the air inlet sleeve 33, and the locking rod 43 is disengaged from the locking groove 511; the motor body rotates to drive the air inlet shaft 31 to rotate so as to enable the air inlet fan blades 32 to rotate, and the pushing block 51 pushes the wire materials wound on the air inlet fan blades 32 to enter the cutter abutting groove 331; the push knife 55 is used for pre-cutting off the wire material, and then the knife tip 321 is used for cutting off the wire material; the sucked dust and wire are discharged through the air outlet passage 621; the motor body is suspended, and the pushing block 51 is elastically pulled back through the pushing spring 54; the hood 1 and the housing 2 are installed, slid along the guide surface 512 by the locking lever 43 and inserted into the locking groove 511; the male plug 63 is attached to the female plug 64 to block the air outlet 22; dust collection work is carried out through rotation of the motor body.
The above-described preferred embodiments according to the present invention are intended to suggest that, in view of the above description, various changes and modifications may be made by the worker in question without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A backflow-preventing cleaner motor, comprising:
a hood suitable for accommodating the motor body and a casing fixed at the bottom of the hood,
the shell is suitable for accommodating an impeller, and the impeller is linked with the motor body; and
an air inlet is formed in one side end face of the shell, and an air inlet fan is arranged in the air inlet;
a plurality of air outlets suitable for discharging dust are formed in the end face of the other side of the shell, and a one-way air tap is arranged on the shell and positioned at the air outlets;
the one-way air tap is in a funnel shape and reversely buckled at the air outlet, wherein
When the motor body works, the one-way air tap bulges to open the air outlet;
when the motor body is suspended, the one-way air tap is closed to block the air outlet;
the one-way air tap comprises an air tap body reversely buckled at the air outlet and a plug fixed at the top of the air tap body;
the outer side wall and the inner side wall of the air tap body are spherical surfaces, and an air cavity is formed in the air tap body;
an air outlet channel is formed in the plug, and the air outlet channel is communicated with the air cavity; wherein the method comprises the steps of
When the motor body works, the air outlet channel is opened to enable air to pass through;
when the motor body is suspended, the plug is closed.
2. A vacuum cleaner motor with backflow prevention as claimed in claim 1,
two opposite side walls of the air outlet channel are respectively provided with a male plug and a female plug;
the plug male head is matched with the plug female head;
the male plug and the female plug are positioned at the opening of the air outlet channel, wherein
When the motor body works, the plug male connector is separated from the plug female connector so that air passes through;
when the motor body pauses, the plug male connector is attached to the plug female connector, so that the plug is closed.
3. A vacuum cleaner motor with backflow prevention as claimed in claim 2,
the opposite side walls of the male plug and the female plug are respectively provided with a plurality of ventilation grooves, the bottoms of the male plug and the female plug are respectively provided with a plurality of hook parts, and the hook parts are positioned between two adjacent ventilation grooves; wherein the method comprises the steps of
The wire passing through the air outlet can be hung on the hook part.
4. A vacuum cleaner motor according to claim 3, wherein,
the air outlet consists of an arc-shaped waist-shaped groove and a notch positioned at the outer side of the waist-shaped groove;
the notch forms a straight edge and an arc edge, and the arc edge is concentric with the shell.
5. A vacuum cleaner motor with backflow prevention as claimed in claim 4,
the air inlet fan is positioned at the opening of the air inlet and is coaxially provided with a locking part, and the locking part can axially slide along the air inlet fan;
the surface of the air inlet fan is provided with a pushing part, and the pushing part can slide along the radial direction of the air inlet fan;
the locking part can be inserted into the pushing part;
the air inlet fan comprises an air inlet shaft coaxially arranged with the motor body, a plurality of air inlet fan blades fixed on the air inlet shaft and an air inlet sleeve sleeved in the air inlet; and
an annular cutter propping groove is formed in the inner side wall of the air inlet sleeve, and the outer side edge of the air inlet fan blade is propped against the inner side wall of the cutter propping groove; wherein the method comprises the steps of
After the wire materials wound on the air inlet fan blades are pushed into the cutter supporting groove by the pushing part, the air inlet fan blades can cut off the wire materials.
6. A vacuum cleaner motor with backflow prevention as claimed in claim 5,
the upper surface of the air inlet fan blade is provided with an axially extending sliding groove, and the width of the sliding groove is gradually increased from the air inlet shaft to the air inlet sleeve;
the pushing part comprises a pushing block which is connected in the sliding groove in a sliding way and a pushing spring which is fixed on the inner side wall of the sliding groove;
the pushing spring is positioned at one side close to the air inlet shaft;
a locking groove is formed in the top of the pushing block, and the locking groove is matched with the locking part; wherein the method comprises the steps of
After the locking part releases the pushing block, the pushing block can push the wire material and stretch the pushing spring;
after the pushing spring is rebounded and pulled back to the pushing block, the locking part can be inserted into the locking groove.
7. A vacuum cleaner motor with backflow prevention as defined in claim 6,
the end part of the air inlet shaft is provided with a release groove;
the locking part comprises a locking spring, a locking disc body and a plurality of locking rods, wherein one end of the locking spring is fixed in the escape groove, the locking disc body is fixed at the other end of the locking spring, and the locking rods are fixed at the bottom of the locking disc body; and
the diameter of the locking disc body is larger than that of the air inlet shaft;
the upper end face of the locking disc body protrudes out of the upper end face of the air inlet sleeve; wherein the method comprises the steps of
After the locking disc body is pressed until the upper end face of the locking disc body is flush with the upper end face of the air inlet sleeve, the locking rod can be inserted into the locking groove;
after the locking disc body is loosened, the locking spring rebounds to drive the locking rod to be separated from the locking groove.
8. A vacuum cleaner motor with backflow prevention as claimed in claim 7,
the end part of the air inlet shaft is provided with a release groove;
the locking part comprises a locking spring, a locking disc body and a plurality of locking rods, wherein one end of the locking spring is fixed in the escape groove, the locking disc body is fixed at the other end of the locking spring, and the locking rods are fixed at the bottom of the locking disc body; and
the diameter of the locking disc body is larger than that of the air inlet shaft;
the upper end face of the locking disc body protrudes out of the upper end face of the air inlet sleeve;
the upper end surface of the pushing block is provided with a guide surface, the guide surface is obliquely arranged, and the thickness of the pushing block is gradually reduced from the air inlet to the cutter supporting groove; wherein the method comprises the steps of
After the locking disc body is pressed until the upper end face of the locking disc body is flush with the upper end face of the air inlet sleeve, the locking rod can be inserted into the locking groove;
after the locking disc body is loosened, the locking spring rebounds to drive the locking rod to be separated from the locking groove.
9. A method of operating an anti-reflux vacuum cleaner motor, comprising: a vacuum cleaner motor with backflow prevention as claimed in claim 8,
when the hood and the shell are removed, the locking spring rebounds to push the upper end surface of the locking disc body to protrude out of the upper end surface of the air inlet sleeve, and then the locking rod is separated from the locking groove;
the motor body rotates to drive the air inlet shaft to rotate so as to enable the air inlet fan blade to rotate, and then the pushing block pushes the wire material wound on the air inlet fan blade to the cutter supporting groove;
pre-cutting off the wire material by a push knife, and cutting off the wire material by a knife tip;
the sucked dust and wire materials are discharged through the air outlet channel;
suspending the motor body, and pulling back the pushing block through the rebound of the pushing spring;
the hood and the shell are installed, and slide along the guide surface through the locking rod and are inserted into the locking groove;
the male plug and the female plug are attached to each other to block the air outlet;
dust collection work is carried out through rotation of the motor body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110427726.3A CN115224859B (en) | 2021-04-21 | 2021-04-21 | Anti-backflow dust collector motor and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110427726.3A CN115224859B (en) | 2021-04-21 | 2021-04-21 | Anti-backflow dust collector motor and working method thereof |
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| CN115224859A CN115224859A (en) | 2022-10-21 |
| CN115224859B true CN115224859B (en) | 2023-09-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243960A (en) * | 2007-02-16 | 2008-08-20 | 金马达制造厂有限公司 | Motor device of dust collector |
| CN208417067U (en) * | 2018-04-23 | 2019-01-22 | 温州旭远电子科技有限公司 | Motor of dust collector |
| CN211152432U (en) * | 2019-12-05 | 2020-07-31 | 广州超科自动化科技有限公司 | Waste gas treatment switch board |
-
2021
- 2021-04-21 CN CN202110427726.3A patent/CN115224859B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243960A (en) * | 2007-02-16 | 2008-08-20 | 金马达制造厂有限公司 | Motor device of dust collector |
| CN208417067U (en) * | 2018-04-23 | 2019-01-22 | 温州旭远电子科技有限公司 | Motor of dust collector |
| CN211152432U (en) * | 2019-12-05 | 2020-07-31 | 广州超科自动化科技有限公司 | Waste gas treatment switch board |
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| CN115224859A (en) | 2022-10-21 |
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