CN107419684B - Blowing and sucking machine - Google Patents
Blowing and sucking machine Download PDFInfo
- Publication number
- CN107419684B CN107419684B CN201710359028.8A CN201710359028A CN107419684B CN 107419684 B CN107419684 B CN 107419684B CN 201710359028 A CN201710359028 A CN 201710359028A CN 107419684 B CN107419684 B CN 107419684B
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- Prior art keywords
- blowing
- connecting pipe
- volute
- pipe
- rear end
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
- E01H2001/089—Suction-effect created through blowing, e.g. using the venturi effect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a blowing and sucking machine, which belongs to the technical field of garden machinery and comprises a main shell, a motor, an impeller, a blowing and sucking part and a collecting device, wherein a volute is arranged between the main shell and the blowing and sucking part; the blowing and adsorbing piece comprises a connector, the connector comprises a blowing connecting pipe, an air suction connecting pipe and a collecting connecting pipe, the rear end of the air suction connecting pipe is rotationally connected to the air suction hole, the rear end of the blowing connecting pipe is connected to the air suction hole when the blowing and sucking machine blows air, and the rear end of the collecting connecting pipe is connected to the air suction hole when the blowing and sucking machine sucks air. When the working modes of the blowing and sucking machine are converted, only the volute is required to be rotated to enable the air blowing hole to be connected with the air blowing connecting pipe or the collecting connecting pipe according to specific working requirements, the structure is simple, the adjustment is convenient, and the use requirements of the blowing and sucking machine in two different working modes can be well met.
Description
Technical Field
The invention relates to the technical field of garden machinery, in particular to a blowing and sucking machine.
Background
The blowing and sucking machine is a common outdoor garden cleaning tool and is mainly used for collecting and cleaning leaves, so that the blowing and sucking machine is also called a leaf blowing and sucking machine. The blowing and sucking machine mainly comprises a main shell, a blowing and sucking accessory detachably connected with the main shell, a motor positioned in the main shell, a fan driven by the motor and a handle connected with the main shell, wherein the blowing and sucking accessory generally comprises a blowing pipe and a sucking pipe which are connected with an air duct. The fan of the existing blowing and sucking machine generally adopts a centrifugal fan, when the blowing and sucking machine is in a blowing mode, the fan rotates at a high speed, and high-speed air flow blown out from an air blowing pipe blows and gathers leaves falling on the ground. When the blowing and sucking machine is in the air suction mode, the fan is reversed, and the formed air suction flow sucks leaves and dust on the ground into the collecting device through the air suction pipe, so that the leaf cleaning work is completed.
In the cleaning process of the existing blowing and sucking machine, leaves often block the suction port of the blowing and sucking machine, and the normal operation of the blowing and sucking machine is affected to a certain extent. In order to solve the problem, the leaves blocking the suction port need to be cleaned manually, and the cleaning is performed after the machine is stopped if necessary, so that the use is inconvenient and the working efficiency is affected. Some manufacturers have additionally provided on the blowing and sucking machine with a crushing device for crushing leaves, and the sucked leaves fall into the collecting device after being crushed by the crushing device.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides the blowing and sucking machine which is simple in structure and not easy to block during working.
In order to achieve the technical purpose, the blowing and sucking machine provided by the invention comprises a main shell, a motor arranged in the main shell, an impeller driven by the motor, a blowing and sucking part connected with the main shell and a collecting device connected with the blowing and sucking part, wherein a hollow volute is arranged between the main shell and the blowing and sucking part, the impeller is arranged in the volute and is in transmission connection with a power output shaft of the motor, the rear end of the volute is rotationally connected with the main shell, and the front end of the volute is provided with a communicated blowing hole and a communicated sucking hole in a staggered manner; the air-blowing adsorption piece comprises a connector arranged in front of the volute, the connector comprises an air-blowing connecting pipe, an air-sucking connecting pipe and a collecting connecting pipe, the rear end of the air-sucking connecting pipe is rotationally connected to the air-sucking hole, the rear end of the air-blowing connecting pipe is connected to the air-blowing hole when the air-blowing machine blows air, and the rear end of the collecting connecting pipe is connected to the air-blowing hole when the air-blowing machine sucks air.
Preferably, the volute comprises a hollow volute body, wherein a cylindrical shell which extends forwards and is hollow is arranged at the front end of the volute body, and an inner cavity of the cylindrical shell forms a blowing hole and is communicated with an inner cavity of the volute body.
Preferably, the front end of the volute body is provided with an annular table which extends forwards and is staggered with the cylindrical shell, and the inner cavity of the annular table forms an air suction hole and is communicated with the inner cavity of the volute body.
Preferably, the rear end of the air suction connecting pipe is rotationally arranged in the annular table, a plurality of vent holes are formed in the side wall of the rear end of the air suction connecting pipe, a concave gap is formed in the annular table, the vent holes are positioned in the concave gap and exposed out of the annular table when the blowing and sucking machine blows air, and the vent holes are staggered with the concave gap and covered by the annular table when the blowing and sucking machine sucks air.
Preferably, the rear end of the volute body is provided with a connecting table extending backwards, the connecting table is provided with a connecting hole for the front end of the main casing body to be inserted into and communicated with the inner cavity of the volute body, the axis of the connecting hole coincides with the axis of the air suction hole, and the volute is rotationally connected with the main casing body through the matching of the connecting hole and the front end of the main casing body.
Preferably, an annular groove communicated with the connecting hole is formed in the inner wall of the connecting table, an annular protrusion matched with the annular groove is formed in the outer wall of the front end of the main shell, and the annular protrusion is arranged in the annular groove; or, an annular bulge protruding towards the center is arranged on the inner wall of the connecting table, an annular groove matched with the annular bulge is formed in the outer wall of the front end of the main shell, and the annular bulge is arranged in the annular groove.
Preferably, the rear end of the blowing connecting pipe and the rear end of the collecting connecting pipe are movably provided with a clamping ring matched with the cylindrical shell for fixing the volute, and a locking mechanism is arranged between the clamping ring and the cylindrical shell.
Preferably, the locking mechanism comprises a locking button and a locking groove which are matched with each other, the locking button is arranged on the outer wall of the front end of the cylindrical shell, the locking groove is arranged at the rear end of the clamping ring and is L-shaped, and the locking groove comprises an embedded groove extending along the axial direction of the clamping ring and a locking groove extending along the circumferential direction of the clamping ring.
Preferably, the front end of the collecting connecting pipe is provided with a connecting ring for connecting the collecting device, a plurality of L-shaped connecting grooves are formed in the circumferential direction of the rear end of the connecting ring at intervals, a plurality of locking pins matched with the connecting grooves are arranged on the outer wall of the front end of the collecting connecting pipe at intervals, and the connecting ring is fixed at the front end of the collecting connecting pipe through the matching of the connecting grooves and the locking pins.
Preferably, the main shell is provided with a handle, and the handle is provided with a clamping arm for fixing the joint; the blowing and absorbing accessory further comprises a blowing pipe connected to the blowing connecting pipe and an air suction pipe connected to the air suction connecting pipe.
After the technical scheme is adopted, the blowing and sucking machine provided by the invention has the following advantages:
1. according to the blowing and sucking machine provided by the invention, a hollow volute is additionally arranged between the main shell and the blowing and sucking piece, the rear end of the volute is rotationally connected with the main shell, and the front end of the volute is provided with staggered and communicated blowing holes and suction holes. When the blowing and sucking machine blows, the rear end of the blowing connecting pipe is connected with the blowing hole, and the motor drives the impeller to rotate to form blowing air which flows through the blowing hole and the blowing connecting pipe and is blown out. When the blowing and sucking machine sucks air, the rear end of the collecting connecting pipe is connected to the air blowing hole, the motor drives the impeller to rotate to form air sucking airflow, the air sucking airflow drives leaves or dust to flow into the collecting device directly after passing through the air sucking hole and the air blowing hole, the leaves or dust cannot block the air sucking hole, and the working efficiency can be effectively improved without stopping the machine to clean.
In addition, the spiral case rotates to be connected in the main casing, and when converting the operating mode of blowing and sucking machine, only need rotate the spiral case make the gas vent according to specific work needs with blow take over be connected or with collect take over be connected can, simple structure, be convenient for adjust, can be simultaneously fine satisfy the operation requirement under two different operating modes of blowing and sucking machine.
2. The volute comprises a volute main body and a cylindrical shell, the structure of the volute is simple, and the structural requirement of the blowing and sucking machine can be well met. The cylindrical shell extends forwards from the front end of the volute body, so that the use requirement of blowing and the installation requirement of matching with the blowing connecting pipe and the collecting connecting pipe can be met simultaneously, and the cylindrical shell can be connected with the blowing connecting pipe or the collecting connecting pipe respectively in two working modes.
3. The front end of the volute body is provided with an annular table, the rear end of the air suction connecting pipe is rotationally arranged in the annular table, the matching structure between the volute and the air suction connecting pipe is simple, the volute can rotate around the air suction connecting pipe, and the volute can be conveniently rotated when the working mode of the blowing and sucking machine is adjusted.
The side wall of the rear end of the air suction connecting pipe is provided with a vent hole, and the annular table is provided with a notch. When the blowing and sucking machine blows, the vent hole is positioned in the concave gap, and the vent hole is exposed out of the annular table. The reverse airflow formed after the blowing airflow hits the ground can be directly discharged through the ventilation opening, so that wind pressure is avoided at two ends of the air suction pipe, and further, blockage caused by the fact that leaves or dust enter the volute along the air suction pipe under the action of wind pressure is avoided, and the impeller can work normally when blowing. When the blowing and sucking machine sucks air, the vent holes are completely staggered with the concave gaps, the vent holes are covered by the annular table, no gap exists between the air suction pipe and the volute, the strength of the sucked air flow can be effectively improved, and then the efficiency of the sucking work is improved.
4. The rear end of spiral case main part sets up the connection platform, sets up on the connection bench with main casing front end complex connecting hole, and the spiral case passes through the connecting hole and rotates to be connected in main casing, and connection structure between spiral case and the main casing is simple, and is convenient for make the spiral case rotate for main casing according to the work needs and adjust.
5. The annular groove and the annular bulge which are matched with each other are arranged between the connecting table and the front end of the main casing, the annular bulge is arranged in the annular groove, the annular bulge and the annular groove are matched to limit the connection between the volute and the main casing, the volute can be prevented from being separated from the main casing, and the stability of rotational connection between the volute and the main casing is effectively improved.
6. The rear end of the blowing connecting pipe and the rear end of the collecting connecting pipe are both provided with the snap ring matched with the cylindrical shell, a locking mechanism is arranged between the snap ring and the cylindrical shell, the connection stability between the blowing connecting pipe and the cylindrical shell or between the collecting connecting pipe and the cylindrical shell can be effectively improved through the snap ring, the blowing connecting pipe is prevented from being separated from the cylindrical shell when the blowing and sucking machine blows and is prevented from being separated from the cylindrical shell when the blowing and sucking machine sucks air and is used for working, and the overall stability of the blowing and sucking machine is effectively improved.
7. The locking mechanism comprises a locking button and a locking groove which are matched with each other, the locking groove is L-shaped, the locking mechanism is simple in structure and can well meet the use requirement, and the clamping ring can conveniently lock or loosen the cylindrical shell through the locking mechanism, so that the locking mechanism is convenient to adjust.
8. The front end of the collecting connecting pipe is provided with a connecting ring used for connecting the collecting device, the connecting ring is arranged on the collecting connecting pipe through a connecting groove and a lock pin which are matched with each other, and the collecting connecting pipe is simple in connecting structure and convenient to assemble and disassemble.
9. The handle is arranged on the main shell, the clamping arm for fixing the joint is arranged on the handle, the fixing structure between the joint and the handle is simple, and the installation requirement of the joint can be well met.
Drawings
FIG. 1 is a schematic view of a blower in an air suction mode according to an embodiment of the present invention;
FIG. 2 is a schematic view of a blower in a blowing mode according to an embodiment of the present invention;
FIG. 3 is a schematic view of a main housing, volute and fitting of a blower according to an embodiment of the invention;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a schematic view of a volute in a blower according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a volute in a blower in an axial direction according to an embodiment of the present invention;
FIG. 7 is a schematic view of a snap ring in a blower according to an embodiment of the present invention;
fig. 8 is a schematic view of a connecting ring in a blower according to an embodiment of the invention.
In the figure, 1-main housing, 11-handle, 12-main switch, 13-trigger, 14-flywheel, 15-clamping arm, 16-air inlet, 21-motor, 22-impeller, 3-volute, 31-volute body, 32-cylindrical housing, 321-air blowing hole, 33-annular table, 331-air suction hole, 332-notch, 34-connection table, 341-connection hole, 342-annular groove, 35-lock knob, 4-connector, 41-air blowing connection pipe, 42-air suction connection pipe, 421-vent, 43-collection connection pipe, 44-lock pin, 51-air blowing pipe, 52-air suction pipe, 6-collection device, 61-collection bag, 7-snap ring, 71-lock groove, 711-embedding groove, 712-lock groove, 8-connection ring, 81-connection groove, 82-connection part.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the invention.
Example 1
As shown in fig. 1, 2, 3 and 4, the blower provided in the first embodiment of the present invention includes a main housing 1, a motor 21 disposed in the main housing, an impeller 22 driven by the motor, a volute 3 rotatably connected to the main housing, a blower connected to the main housing and matched with the volute, a collecting device 6 connected to the blower, and a power output shaft connected to the motor 21 by the impeller 22.
As shown in fig. 5 and 6, the volute 3 comprises a cylindrical and hollow volute body 31, a cylindrical shell 32 which is offset from the center of the volute body and extends forwards in the axial direction is arranged on the front end surface of the volute body, and a gas blowing hole 321 is formed in the inner cavity of the cylindrical shell 32 and is communicated with the inner cavity of the volute body.
An annular table 33 extending forwards in the axial direction is arranged on the front end face of the volute body 31, an inner cavity of the annular table forms an air suction hole 331 and is communicated with the inner cavity of the volute body, and the air suction hole 331 and the air blowing hole 321 are staggered. In this embodiment, the axis of the air intake 331 coincides with the axis of the volute body 31, and the axis of the air blowing hole 321 is offset from the axis of the volute body.
The rear end of the volute body 31 is provided with a connecting table 34 extending backwards along the axial direction, the connecting table is provided with a connecting hole 341 for inserting the front end of the main casing 1, the axis of the connecting hole coincides with the axis of the air suction hole 331, and the volute 3 is rotatably connected to the main casing through the cooperation of the connecting hole 341 and the front end of the main casing 1.
In order to keep the rotational connection between the scroll casing 3 and the main casing 1 stable, an annular groove 342 communicated with the connecting hole 341 is formed in the inner wall of the connecting table 34, an annular protrusion matched with the annular groove is formed in the outer wall of the front end of the main casing 1, and the annular protrusion is arranged in the annular groove. The annular bulge and the annular groove are matched to limit the connection between the volute and the main shell, so that the volute is prevented from being separated from the main shell, and the stability between the volute and the main shell is improved.
Alternatively, the setting positions of the annular groove and the annular protrusion can be interchanged, that is, the inner wall of the connecting table 34 is provided with the annular protrusion protruding towards the center, the outer wall of the front end of the main shell 1 is provided with the annular groove matched with the annular protrusion, and the annular protrusion is arranged in the annular groove.
The blowing and adsorbing part comprises a joint 4, a blowing pipe 51 and an air suction pipe 52, and the blowing pipe and the air suction pipe are axially parallel and fixed together. The joint 4 comprises an air blowing connecting pipe 41, an air suction connecting pipe 42 and a collecting connecting pipe 43 which are connected together and axially parallel to each other, wherein the rear end of an air blowing pipe 51 is fixedly connected to the front end of the air blowing connecting pipe 41, and the rear end of an air suction pipe 52 is fixedly connected to the front end of the air suction connecting pipe 42. In this embodiment, the axes of the air blowing connection pipe 41, the air suction connection pipe 42 and the collecting connection pipe 43 are located on the same plane, the air blowing connection pipe is arranged above the air suction connection pipe, and the collecting connection pipe is arranged below the air suction connection pipe. In order to allow the cylindrical housing 32 to be connected to the air blowing connection pipe 41 and the collecting connection pipe 43, respectively, when the scroll 3 rotates, the vertical distance between the axis of the rear end of the air blowing connection pipe and the axis of the air suction connection pipe 42 is equal to the vertical distance between the axis of the collecting connection pipe 43 and the axis of the air suction connection pipe 42, and is equal to the vertical distance between the axis of the cylindrical housing 32 and the axis of the annular table.
The rear end of the suction connection pipe 42 is rotatably arranged in the annular table 33, a plurality of ventilation holes 421 are formed in the side wall of the rear end of the suction connection pipe, and a notch 332 is formed in the annular table. When the blowing and sucking machine blows, the vent hole 421 is positioned in the notch 332, and the vent hole is exposed out of the annular table 33. When the blower sucks air, the vent 421 is completely staggered from the notch 332 and the vent is covered by the annular land 33.
In order to realize the fixed connection between the blowing connecting pipe 41 or the collecting connecting pipe 43 and the cylindrical shell 32, the rear end of the blowing connecting pipe and the rear end of the collecting connecting pipe are movably provided with a clamping ring 7 matched with the front end of the cylindrical shell, and a locking mechanism is arranged between the clamping ring and the cylindrical shell. The snap ring can be offset by a short distance relative to the axial direction of the blow connection pipe or the collection connection pipe, and can also rotate at a certain angle relative to the circumferential direction of the blow connection pipe or the collection connection pipe.
As shown in fig. 7, in this embodiment, the locking mechanism includes a lock button 35 and a lock groove 71 that are mutually matched, and two lock buttons and lock grooves are respectively provided, however, three, four or more lock buttons and lock grooves may be respectively provided, so long as the requirement of fixing connection is satisfied. The lock knob 35 is provided on the outer wall of the front end of the cylindrical housing 32, and the lock groove 71 is provided at the rear end of the snap ring 7. The locking groove 71 has an L-shape, and includes an insertion groove 711 extending in the axial direction of the snap ring 7 and a locking groove 712 extending in the circumferential direction of the snap ring. The embedded groove is formed by local expansion of the clamping ring, and the embedded groove is formed by local material taking and processing of the clamping ring.
In the locking process, the lock knob 35 is inserted from the insertion groove 711, and then the snap ring 7 is rotated to lock the lock knob into the locking groove 712. When the snap ring 7 is released, the lock button 35 is separated from the locking groove, and then the snap ring moves axially to separate the lock button from the embedding groove. The clamping ring can conveniently lock or unlock the cylindrical shell through the locking mechanism, and is convenient to adjust.
The collecting device 6 comprises a collecting bag 61 provided with an interface, the front end of the collecting nipple 43 being provided with a connecting ring 8 for connecting the collecting bag. As shown in fig. 8, a plurality of L-shaped connecting grooves 81 are provided at intervals in the circumferential direction of the rear end of the connecting ring 8, and a connecting portion 82 is provided at the front end of the connecting ring to be engaged with the mouthpiece of the collecting bag 61. The outer wall of the front end of the collecting connecting pipe 43 is provided with a plurality of locking pins 44 matched with the connecting grooves 81, and the connecting ring 8 is fixed at the front end of the collecting connecting pipe through the matching of the connecting grooves 81 and the locking pins 44. In this embodiment, two connecting grooves 81 and two locking pins 44 are provided. The connecting ring is arranged on the collecting connecting pipe through the connecting groove and the lock pin which are matched with each other, the connecting structure is simple, and the dismounting is convenient.
As shown in fig. 3 and 4, the rear end of the main casing 1 is provided with an air inlet hole 16, the main casing 1 is provided with a handle 11, a main switch 12 is arranged in the handle, and a trigger 13 for triggering the main switch is movably arranged on the handle. The handle is also internally provided with a control board electrically connected with the main switch, and the control board is provided with a speed regulating wheel 14 for regulating the rotating speed of the motor 21.
The lower part of the front end of the handle 11 is provided with a clamping arm 15 for clamping the joint 4, in this embodiment, the main housing is composed of a left half shell and a right half shell, each half shell is provided with a clamping arm, and the two clamping arms are matched to clamp the middle rear part of the blowing connecting pipe 41. The clamping arms 15 comprise arc-shaped clamping parts and fixing parts arranged at the tail ends of the clamping parts, the middle rear parts of the blowing connecting pipes are clamped by the arc-shaped parts, and the fixing parts of the two clamping arms are fixed through fasteners.
As shown in fig. 1, when the blower sucks air, the rear end of the collecting nipple 43 is connected to the cylindrical case 32, and at this time, the ventilation hole 421 is completely covered by the annular table 33. The trigger 13 is pressed down to switch on the main switch 12, the motor 21 is electrified to drive the impeller 22 to rotate to form an air suction flow, fallen leaves or dust enter the volute 3 along the air suction pipe 42 under the action of the air suction flow, and then flow into the collecting bag 61 along the air blowing hole 321 on the cylindrical shell 32.
When the blowing and sucking machine blows, the snap ring at the rear end of the collecting connecting pipe 43 is rotated to loosen the cylindrical shell 32, then the volute 3 is rotated to enable the cylindrical shell to correspond to the blowing connecting pipe 41, the cylindrical shell is locked through the snap ring at the rear end of the blowing connecting pipe, and at the moment, the vent hole 421 is exposed out of the annular table 33. The trigger 13 is pressed down, the main switch is connected, the motor is electrified to drive the impeller to reversely rotate to form blowing air flow, and the blowing air flow is blown to the ground after passing through the cylindrical shell 32, the blowing connecting pipe 41 and the blowing pipe 51, so that the purpose of blowing and gathering leaves or dust on the ground is realized. The reverse air flow formed after the air blowing air flow hits the ground can be directly discharged through the ventilation opening 421, so that wind pressure is avoided at two ends of the air suction pipe, and further, the situation that leaves or dust enter the volute along the air suction pipe to cause blockage under the action of wind pressure is avoided, and the impeller can work normally during air blowing is ensured.
The blowing and sucking machine that this embodiment provided, the air current of breathing in drives leaf or dust and directly flows to collection device after the hole of breathing in, gas vent, and leaf or dust can not block up the hole of breathing in, need not to shut down in the course of the work and clear up, can effectively improve work efficiency. The spiral case rotates and connects in the main casing, when converting the operating mode of blowing and sucking machine, only need rotate the spiral case make the gas vent according to specific work needs with blow take over be connected or with collect take over be connected can, simple structure, be convenient for adjust, can be simultaneously fine satisfy the operation requirement under two kinds of different operating modes of blowing and sucking machine.
In addition to the above preferred embodiments, the present invention has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the invention, which shall fall within the scope of the invention as defined in the appended claims.
Claims (10)
1. The blowing and sucking machine comprises a main shell, a motor, an impeller driven by the motor, a blowing and sucking part connected with the main shell and a collecting device connected with the blowing and sucking part, and is characterized in that a hollow volute is arranged between the main shell and the blowing and sucking part, the impeller is arranged in the volute and is in transmission connection with a power output shaft of the motor, the rear end of the volute is rotationally connected with the main shell, and the front end of the volute is provided with communicated blowing holes and sucking holes in a staggered manner; the blowing and adsorbing piece comprises a connector arranged in front of the volute, the connector comprises a blowing connecting pipe, an air suction connecting pipe and a collecting connecting pipe, and the rear end of the air suction connecting pipe is rotationally connected with the air suction hole;
rotating the volute to enable the air blowing hole to be connected with the air blowing connecting pipe or connected with the collecting connecting pipe;
the rear end of the blowing connecting pipe is connected with a blowing hole when the blowing and sucking machine blows, the motor drives the impeller to reversely rotate to form blowing air flow, and the blowing air flow is blown out through the blowing connecting pipe;
the rear end of the collecting connecting pipe is connected with a gas blowing hole when the blowing and sucking machine sucks gas, the motor drives the impeller to rotate forward to form suction gas flow, and the suction gas flow flows into the volute along the suction connecting pipe and is discharged through the gas blowing hole;
the main shell is provided with a handle, a main switch is arranged in the handle, a trigger for triggering the main switch is movably arranged on the handle, a control board electrically connected with the main switch is further arranged in the handle, and a speed regulating wheel for regulating the rotating speed of the motor is arranged on the control board.
2. The blower of claim 1, wherein the volute comprises a hollow volute body, a forward end of the volute body having a forwardly extending hollow cylindrical shell, and an interior cavity of the cylindrical shell forming a blow hole and communicating with an interior cavity of the volute body.
3. The blower according to claim 2, wherein the front end of the scroll body is provided with an annular table extending forward and staggered from the cylindrical shell, and an inner cavity of the annular table forms the suction hole and is communicated with the inner cavity of the scroll body.
4. A blowing and sucking machine as claimed in claim 3 wherein the rear end of the suction connection pipe is rotatably disposed in the annular table, a plurality of vent holes are formed in the side wall of the rear end of the suction connection pipe, a recess is formed in the annular table, the vent holes are located in the recess and exposed to the annular table when the blowing and sucking machine blows, and the vent holes are staggered from the recess and covered by the annular table when the blowing and sucking machine sucks air.
5. A blowing and sucking machine as claimed in claim 3 wherein the rear end of the main body is provided with a rearwardly extending connection table, the connection table is provided with a connection hole for the front end of the main housing to be inserted into and communicate with the inner cavity of the main body, the axis of the connection hole coincides with the axis of the suction hole, and the volute is rotatably connected to the main housing by the cooperation of the connection hole and the front end of the main housing.
6. The blowing and sucking machine of claim 5, wherein an annular groove communicated with the connecting hole is formed in the inner wall of the connecting table, an annular protrusion matched with the annular groove is formed in the outer wall of the front end of the main shell, and the annular protrusion is arranged in the annular groove; or, an annular bulge protruding towards the center is arranged on the inner wall of the connecting table, an annular groove matched with the annular bulge is formed in the outer wall of the front end of the main shell, and the annular bulge is arranged in the annular groove.
7. The blowing and sucking machine as claimed in any one of claims 2 to 6, wherein a snap ring for fixing the spiral case is movably provided at both the rear end of the blowing connection pipe and the rear end of the collecting connection pipe, and a locking mechanism is provided between the snap ring and the cylindrical case.
8. The blower of claim 7, wherein the locking mechanism includes a lock button and a lock groove that cooperate with each other, the lock button being provided on an outer wall of the front end of the cylindrical housing, the lock groove being provided at the rear end of the snap ring and being L-shaped, the lock groove including an insertion groove extending axially along the snap ring and a lock groove extending circumferentially along the snap ring.
9. The blowing and sucking machine as claimed in any one of claims 1 to 6, wherein a connecting ring for connecting the collecting device is provided at the front end of the collecting pipe, a plurality of L-shaped connecting grooves are provided at the rear end of the connecting ring at intervals in the circumferential direction, a plurality of locking pins matched with the connecting grooves are provided at intervals on the outer wall of the front end of the collecting pipe, and the connecting ring is fixed at the front end of the collecting pipe by the cooperation of the connecting grooves and the locking pins.
10. A blowing and sucking machine as claimed in any one of claims 1 to 6 wherein a gripping arm for securing a joint is provided on the handle; the blowing and absorbing accessory further comprises a blowing pipe connected to the blowing connecting pipe and an air suction pipe connected to the air suction connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359028.8A CN107419684B (en) | 2017-05-19 | 2017-05-19 | Blowing and sucking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359028.8A CN107419684B (en) | 2017-05-19 | 2017-05-19 | Blowing and sucking machine |
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| CN107419684A CN107419684A (en) | 2017-12-01 |
| CN107419684B true CN107419684B (en) | 2023-05-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110644402B (en) * | 2018-06-26 | 2022-01-04 | 南京德朔实业有限公司 | Blowing and sucking machine |
| CN115198684A (en) * | 2021-04-14 | 2022-10-18 | 创科无线普通合伙 | Blowing and sucking device |
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|---|---|
| CN107419684A (en) | 2017-12-01 |
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Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: 314100 No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
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