CN110897548A

CN110897548A - Handheld dust collection equipment

Info

Publication number: CN110897548A
Application number: CN201911103770.8A
Authority: CN
Inventors: 林有余; 刘楷; 汪洋; 裴勇
Original assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Current assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-03-24
Anticipated expiration: 2039-11-13
Also published as: CN110897548B

Abstract

The invention discloses handheld dust collection equipment, which comprises an equipment body for separating dust, wherein a dirty air inlet of the equipment body is provided with a dust collection pipe I, the end part of the dust collection pipe I is rotatably and hermetically provided with a dust collection pipe II, and the dust collection pipe II can rotate relative to the dust collection pipe I and is maintained at any angle position in a rotation range; the insides of the dust suction pipe I and the dust suction pipe II are communicated; the equipment body is provided with a handle. The invention has the following beneficial effects: the use requirements of different dust absorption occasions are met through the dust absorption pipe assembly capable of rotating within a certain angle range, so that the equipment body can be kept in a vertical state, and blockage is avoided. Furthermore, the handle can also be adjusted in a certain angle range in a rotating way, so that the posture adjustment range of the dust collection equipment is expanded, and the use requirements of more complex dust collection occasions are better met.

Description

Handheld dust collection equipment

Technical Field

The invention belongs to the technical field of dust removing equipment, and particularly relates to handheld dust collecting equipment.

Background

Along with the increasing requirements of people on living environment and household sanitation, dust removal becomes an important cleaning task for daily cleaning, and the dust collection equipment has the advantages of simplicity in operation, high working efficiency, low labor intensity and the like, is taken into thousands of households as a household cleaning appliance and is deeply loved by people.

The hand-held dust collecting equipment has the advantages of small volume and simple operation, is more suitable for cleaning different corners in a household room and gradually becomes the mainstream of the market, the hand-held dust collecting equipment in the current market generally has a cyclone separation dust collecting device, the motor is used for driving a blade to rotate at high speed, vacuum negative pressure is generated in a sealed shell so as to separate dust in a dust cup, air filtered by the dust cup is discharged at a high speed, better separation of impurities such as dust and the like from the air is realized, the air containing the impurities enters the cyclone separation dust cup along the tangential direction, the airflow makes rotary motion from top to bottom, in the rotary process, the vacuum degree is higher and higher, the large particles and the heavier impurities begin to sink under the action of gravity and centrifugal force, the large particles and the heavier impurities are separated and collected at the bottom of the dust cup, and the finer impurities enter an internal secondary separation channel after being filtered along with the upper airflow, the fine dust is separated again with the flow of the air flow and falls down to the bottom of the inner dirt cup, while the clean air is filtered again and discharged to the atmosphere.

From the principle of the cyclone dust collector we know that the dust separating effect is most obvious when the cyclone dust collector is in vertical position and the dust cup is at the bottom, in the practical use process, we find that the cyclone separation dust collecting device of the dust collecting equipment can change along with the position of the handheld dust collecting equipment due to the fact that the handheld dust collecting equipment needs to clean dust at different positions, the cyclone separation dust collecting device is often inclined, even the cyclone separation dust collecting device is in an upside-down position with a dust cup upwards, when the bottom of the dust cup is turned from bottom to top, the collected dust in the dust cup slides to the separation channel again under the action of gravity, which not only causes secondary pollution, but also can cause the blockage of the filter screen due to the accumulation of a large amount of dust on the periphery of the filter screen, easily causes the burning of the motor and the like, therefore, in order to achieve a good separation effect, the cyclone dust collector should be prevented from inclining as much as possible during use.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a handheld dust collection device, which meets the use requirements in special occasions by changing the angle of a dust collection pipe and ensures that a cyclone separation dust collection device is in a vertical state as much as possible.

In order to solve the problems of the prior art, the invention discloses a handheld dust collection device which comprises a device body for separating dust, wherein a dirty air inlet of the device body is provided with a dust collection pipe I, the end part of the dust collection pipe I is rotatably and hermetically provided with a dust collection pipe II, and the dust collection pipe II can rotate relative to the dust collection pipe I and is maintained at any angle position in a rotation range; the insides of the dust suction pipe I and the dust suction pipe II are communicated; the equipment body is provided with a handle.

Furthermore, the end part of the dust suction pipe II is pivoted with the end part of the dust suction pipe I through a transition joint, and the interior of the transition joint is communicated with the interiors of the dust suction pipe I and the dust suction pipe II; the pivot center line of the transition joint is perpendicular to the central axis of the dust suction pipe I.

Further, the central axis of the dust suction pipe I is parallel or vertical to the central axis of a dust cup in the equipment body.

Further, the dust suction pipe I is rotatably mounted on the dirty air inlet of the apparatus body with its central axis as an axis.

Further, the device body is provided with an extension part extending along the direction parallel to the axis I of the dust suction pipe I, the handle is rotatably connected with the extension part of the device body, and the handle can rotate relative to the device body and is maintained at a specific angle position in a rotating range.

Further, the handle rotates in the range of 0-90 degrees by taking the axis II of the extension part of the equipment body as a reference.

Furthermore, the tail end of the handle is detachably provided with a battery pack, and a battery for supplying power to the equipment body is arranged in the battery pack.

Furthermore, a switch trigger for controlling the starting and stopping of the equipment body is arranged on the handle.

Furthermore, the dust suction pipe II rotates in the range of 0-60 degrees by taking the axis I of the dust suction pipe I as a reference.

Furthermore, the cyclone separation dust collecting device in the equipment body comprises a dust cup and a revolving body I arranged in the dust cup, an interlayer between the revolving body I and the dust cup is used for forming a cyclone channel I, the area, close to the cup bottom, in the dust cup is used for forming a dust collecting area I, a plurality of movable blocking pieces are arranged in the cyclone channel I along the periphery of the revolving body I, one end of each movable blocking piece is pivotally fixed on the outer peripheral surface of the revolving body I, and the other end of each movable blocking piece can be lapped on the inner peripheral surface of the dust cup after the dust cup inclines for a certain angle and is used for preventing large-particle dust in the dust collecting area I from sliding to the cyclone channel I.

The invention has the following beneficial effects: the use requirements of different dust absorption occasions are met through the dust absorption pipe assembly capable of rotating within a certain angle range, so that the equipment body can be kept in a vertical state, and blockage is avoided. Furthermore, the handle can also be adjusted in a certain angle range in a rotating way, so that the posture adjustment range of the dust collection equipment is expanded, and the use requirements of more complex dust collection occasions are better met.

Drawings

FIG. 1 is a front view of the structure of a dust suction apparatus according to the present invention;

FIG. 2 is a sectional view showing the structure of the dust collecting apparatus shown in FIG. 1;

FIG. 3 is a schematic view of the installation of a battery pack in the dust extraction apparatus of FIG. 1;

FIG. 4 is a sectional view showing the construction of a cyclone dust collecting apparatus in the dust collecting device of FIG. 1;

FIG. 5 is a cross-sectional view of the structure taken along line A-A of FIG. 4;

FIG. 6 is a sectional view showing the construction of the dust collecting apparatus in the initial state according to the present invention;

FIG. 7 is a sectional view showing the construction of the dust collecting apparatus in a suck-up state according to the present invention;

FIG. 8 is a sectional view showing the construction of the dust sucking apparatus in the lower starting state of the present invention.

Reference numerals:

1 dust collecting cup; 2 a rotator I; 3 a revolving body II; 4 a dirty air inlet; 5 cleaning the air outlet; 6, a dust suction pipe I; 7, a dust suction pipe II; 8, filtering a screen; 9 a filter body; 10, a top cover; 11 a bottom cover; 12 an equipment body; 13 large particle dust; 14 an elastomeric seal I; 15 fine dust; 16 elastic sealing element II; 17 a secondary separation inlet; 18 a secondary separation outlet; 19 an axis of rotation I; 20 a transition joint; 21 fan blades; 22 a motor; 23 axis of rotation II; 24 a locking button; 25 a microswitch; 26 a switch trigger; 27 a battery; 28 cyclone separating dust collector; 29 a handle; 30 air outlet; 31 a battery pack; 32 outer turns; 33 an inner turning part; 34 enclosing a baffle; 100 cyclonic separation channels I; 200 separation channel II; 300 a dust collecting area I; 400 dust collecting area II; 500 isolation regions; the direction indicated by the arrow in the figure is the air flow equivalent direction; a is a rotating included angle between the dust suction pipe II and the dust suction pipe I; b, the rotating included angle between the handle and the shell.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 3, a hand-held dust suction device comprises a device body 12 for separating dust, a dust suction pipe I6 is arranged at a dirty air inlet 4 of the device body 12, and a dust suction pipe II7 is rotatably and hermetically arranged at the end part of a dust suction pipe I6; the dust suction pipe II7 can rotate relative to the dust suction pipe I6 and is maintained at any angle position in the rotation range; the dust suction pipe I6 is communicated with the inside of the dust suction pipe II 7; the device body 12 is provided with a handle 29.

The interior of the transition joint 20 is communicated with the interior of the dust suction pipe I6 and the interior of the dust suction pipe II 7; the pivot centerline of the transition joint 20 is perpendicular to the central axis of the suction tube I6. Specifically, the end of the suction pipe II7 is pivotally connected to the end of the suction pipe I6 by a transition joint 20. The end part of the dust suction pipe II7 and the transition joint 20 are both cylindrical structures and are mutually nested to form an annular interlayer, the end part of the dust suction pipe I6 is a cylindrical structure matched with the annular interlayer, so that the dust suction pipe II7 is rotatably arranged in the annular interlayer, and the dust suction pipe II7 is fixed at a certain angle by utilizing the pretightening force generated during assembly.

In one embodiment, the central axis of the suction tube I6 is parallel or perpendicular to the central axis of the dirt cup within the appliance body 12.

In one embodiment, the suction pipe I6 is rotatably mounted on the dirty air inlet 4 of the main body 12 about its central axis, and the suction pipe I6 can be maintained at any angular position within the range of rotation when rotated relative to the main body 12. The rotating plane of the dust collection pipe II7 can be changed by rotating the dust collection pipe I6, so that the posture variety of the dust collection pipe is expanded to meet the use requirements of more occasions.

In one embodiment, the apparatus body 12 has an extension portion extending in a direction parallel to the axis of the dust suction pipe I6, and the handle 29 is rotatably connected to the extension portion of the apparatus body 12 and is maintained at a specific angular position within a rotation range by the lock knob 24. The connection mode and the locking principle of the handle 29 and the device body 12 are described in detail in the chinese patent publication with the application number "201910468872.3", and thus are not described in detail.

In one embodiment, as shown in fig. 6, 7 and 8, the handle 29 can rotate at a certain angle b on both sides of the axis II23, with the axis II23 of the extension portion of the device body 12 in the initial state as a reference, wherein b is in the range of 0 ° to 90 °, and preferably 45 °. Similarly, the dust suction pipe II7 can rotate at a certain angle a on both sides of the axis I19 with reference to the axis I19 of the dust suction pipe I6 in the initial state, the value of a ranges from 0 ° to 60 °, and a is preferably 45 °. As shown in figure 6, the cup mouth of the dust collecting cup in the whole dust collecting equipment is vertically upward, the cup bottom is vertically downward to form a straight state, and the state is also an initial state, and the dust collecting equipment is suitable for dust collection and cleaning in a horizontal position. As shown in figure 7, the dust suction pipe II7 is tilted upwards and the handle 19 is rotated downwards, which is suitable for cleaning at a high position, and the dust cup 1 can still keep the original vertical state. As shown in figure 8, the dust suction pipe II7 rotates downwards and the handle 19 tilts upwards, which is suitable for cleaning in a low position, and the dust cup 1 can still keep the original vertical state.

In one embodiment, as shown in FIG. 3, the handle 29 is removably provided at its distal end with a battery pack 31, the battery pack 31 having a battery 27 disposed therein for powering the device body 12. As an electric tool, the dust collection equipment of the invention necessarily comprises a switch trigger 26, as shown in FIG. 2, the switch trigger 26 is arranged on a handle 29, a microswitch 25 is arranged inside the handle 29, and the on-off control of the dust collection equipment is realized by operating the switch trigger 26 to trigger the on-off of the microswitch 25.

In one embodiment, the apparatus body 12 further comprises a cyclone dust collecting device, a fan 21 and a motor 22, wherein the fan 21 is driven by the motor 22 to generate negative pressure suction. A microswitch 25 is arranged in a control circuit of the motor 22, and start and stop control is carried out through a trigger 26. An air outlet 30 is arranged on the device body 12. The dirty air passes through the dust suction pipe II7, the transition joint 20, the dust suction pipe I6 and the cyclone separation dust collection device in sequence and then is discharged from the air outlet 30.

As shown in fig. 4, the cyclone dust collecting apparatus 12 comprises a dirt cup 1 having a dirty air inlet 4 and a clean air outlet 5; a revolving body I2 is arranged in an air flow path from a dirty air inlet 4 to a clean air outlet 5 in the dust cup 1, an interlayer between the revolving body I2 and the dust cup 1 is used for forming a cyclone channel I100, the revolving body I2 is provided with a filter screen 8 for filtering air flowing from the cyclone channel I100 to the inside of the revolving body I2, and the area in the cyclone channel I100, which is close to the cup bottom of the dust cup 1, is used for forming a dust collection area I300. The fan blade generates negative pressure suction force to suck the dirty air into the dust collecting cup 1 from the dirty air inlet 4, and then forms a downward spiral motion along the circumferential direction of the revolving body I2, in the process, large-particle dust 13 in the dirty air falls down in the dust collecting area I300 below under the blockage of the filter screen 8, and the rest dust passes through the filter screen 8 together with the air to be separated for the second time. It can be seen that when the dust cup 1 is tipped or turned upside down, the large particles 13 in the dust collecting region I300 will slide to the cyclone passage I100, thereby interfering with the separation process at the filter screen 8 and further blocking the mesh of the filter screen 8. Therefore, a plurality of movable blocking pieces 6 are arranged in the cyclone passage I100 along the periphery of the revolving body I2, one end of each movable blocking piece 6 is pivotally fixed on the periphery of the revolving body I2 through a pivot 7, and the other end of each movable blocking piece 6 can be lapped on the inner periphery of the dust collection cup 1 after the dust collection cup 1 inclines for a certain angle and is used for preventing large-particle dust 13 in the dust collection area I300 from sliding to the cyclone passage I100.

When the vacuum cyclone separation dust collecting device 12 is toppled or inverted, the movable end of a part of the movable baffle 6 which is lower in the gravity direction rotates around the pivot 7 under the action of gravity and is lapped on the inner circumferential surface of the dust collecting cup 1, so that large-particle dust 13 in the dust collecting area I300 is prevented from sliding to the cyclone channel I100, the interference on the separation process of the filter screen 8 is avoided, and the reliability of the dust collecting equipment is improved. It should be noted that the movable ends of the remaining movable blocking pieces 6 also rotate around the pivot 7 under the action of gravity and overlap the outer peripheral surface of the rotator I2, so that the space between the cyclone passage I100 and the dust collection area I300 is not blocked, but the large dust particles 13 are also gathered towards the bottom under the action of gravity, and therefore do not enter the cyclone passage I100 through the area communicated with the upper part.

Similarly, when the vacuum cyclone dust collector 12 is restored, the movable end of the movable blocking piece 6 hangs down relative to the pivot end under the action of gravity and is away from the inner circumferential surface of the dust cup 1, so that the large dust particles 13 in the cyclone passage I100 can slide to the dust collecting region I300.

In one embodiment, a revolving body II3 with inner and outer revolving parts 33, 32 is arranged in the revolving body I2, the tops of the inner and outer revolving parts 33, 32 are integrally connected, a sandwich layer between the two is used for forming a cyclone passage II200, and a dust collecting area II400 is arranged below the cyclone passage II 200. The bottom of the rotary body I2 is closed to form a dust collecting region II400 therein. It should be noted that, a sealing arrangement is required between corresponding parts between the revolving body I2 and the revolving body II3, so as to meet the purpose of cyclone separation, but the specific sealing form is a conventional means, and thus, is not described in detail. The bottom of the inner revolving part 33 is provided with a secondary separation outlet 18 for air flowing from the cyclone passage II200 to the inside of the inner revolving part 33, and the outer revolving part 32 of the revolving body II3 is provided with a secondary separation inlet 17 at a position close to the top of the revolving body II 3. The inside of the inner turning part 33 is connected to the clean air outlet 5. After entering the cyclone passage II200 through the secondary separation inlet 17, the air filtered by the filter screen 8 will continue to move toward the secondary separation outlet 18 under the action of negative pressure suction force, then enter the inner revolving part 33 through the secondary separation outlet 18, and finally be discharged through the clean air outlet 5.

It should be noted that in the axial direction of the dust cup 1, the secondary separation inlet 17 is near the top of the cup and the secondary separation outlet 18 is near the bottom of the cup, so that the cyclone passage II200 has a longer axial dimension, which helps to separate dust completely.

During the air entering the inner rotary part 33 from the secondary separation outlet 18, the fine dust 15 in the air falls down into the dust collection area II400 by gravity to complete the secondary separation. As in the previous case, when the vacuum cyclone dust collecting apparatus 12 is toppled or inverted, the fine dust 15 in the dust collecting region II400 will slide down into the cyclone passage II200 and further enter the inner revolving portion 33 through the secondary separation outlet 18, thereby interfering with the secondary separation process, even blocking the filter 9 at the clean air outlet 5, increasing the load of the suction impeller apparatus, and causing equipment failure and damage. For this purpose, a ring of baffle 34 is arranged between the cyclone passage II200 and the dust collecting area II400, and the baffle 34 is connected with the revolving body I2 and forms an isolation area 500 which can prevent the fine dust 15 in the dust collecting area II400 from sliding to enter the cyclone passage II200 when the posture of the vacuum cyclone dust collecting device 12 changes. As shown in fig. 6 and 7, when the vacuum cyclone dust collecting device 12 is toppled or inverted, the fine dusts 15 in the dust collecting region II400 slide down to the isolation region 500 along the inner peripheral surface of the bottom of the rotator I2 under the action of gravity, and cannot pass through the baffle 34 to enter the cyclone passage II200, so that the secondary separation effect is ensured, and the reliability of the device is improved. The enclosure 34 may be a tapered structure with a large top and a small bottom, or may be a revolving structure with a horizontal ring surface at the top and a vertical cylindrical surface at the bottom.

As shown in fig. 5, in one embodiment, the secondary separation inlet 17 extends in a direction deviating from the central axis thereof in the radial direction of the cyclone passage II200, thereby allowing air entering the cyclone passage II200 to flow in a tangential direction. Thus, the air inlet can generate spiral motion better, and the separation effect is guaranteed.

In one embodiment, the part of the revolution body I2 corresponding to the cyclone passage I100 is a conical structure, the diameter of the conical structure is reduced from top to bottom, and the filter screen 8 is arranged on the conical wall of the revolution body I2.

As shown in fig. 4, in order to facilitate cleaning of dust in the dust collecting region I300 and the dust collecting region II400, the dust cup 1 is designed into a split structure, and in one embodiment, the dust cup 1 includes a cup body 22, a top cover 10 and a bottom cover 11, two ends of the cup body 22 are open, the top cover 10 is directly mounted on the top opening of the cup body 22, and the dust cup is mounted in a sealing manner by using a horizontal ring surface of the top cover to be attached to a horizontal ring surface of the top of the cup body 22. The edge of the bottom cover 11 is provided with a ring of annular grooves, the center of the annular groove is provided with a circular groove, an elastic sealing element I14 is arranged in the annular groove, an elastic sealing element II16 is arranged in the circular groove, after the bottom cover 11 is connected with the bottom of the cup body 22, the bottom edge of the cup body 22 is sealed by the elastic sealing element I14, and the edge of the bottom rotary part of the rotary body I2 is sealed by the elastic sealing element II 16. The dirty air inlet 4 is provided in the cup 22 and the clean air outlet 5 is provided in the lid 10.

In one embodiment, the top cover 10 is provided with a filter body 9 at the clean air outlet 5, and the bottom cover 11 is hermetically connected with the bottom of the rotator I2.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A hand-held suction device comprising a device body (12) for separating dust, characterized in that: a dirty air inlet (4) of the equipment body (12) is provided with a dust collection pipe I (6), the end part of the dust collection pipe I (6) is rotatably and hermetically provided with a dust collection pipe II (7), and the dust collection pipe II (7) can rotate relative to the dust collection pipe I (6) and is maintained at any angle position in a rotation range; the dust suction pipe I (6) is communicated with the dust suction pipe II (7); the equipment body (12) is provided with a handle (29).

2. A hand-held cleaner according to claim 1, wherein: the end part of the dust collection pipe II (7) is pivoted with the end part of the dust collection pipe I (6) through a transition joint (20), and the interior of the transition joint (20) is communicated with the interiors of the dust collection pipe I (6) and the dust collection pipe II (7); the pivot center line of the transition joint (20) is perpendicular to the central axis of the dust suction pipe I (6).

3. A hand-held cleaner according to claim 1, wherein: the central axis of the dust suction pipe I (6) is parallel to or vertical to the central axis of a dust cup in the equipment body (12).

4. A hand-held cleaner according to claim 1, wherein: the dust suction pipe I (6) is rotatably mounted on the dirty air inlet (4) of the apparatus body (12) with its central axis as an axis.

5. A hand-held cleaner according to claim 1, wherein: the equipment body (12) is provided with an extension part extending along the direction parallel to the axis I of the dust suction pipe I (6), the handle (29) is rotatably connected with the extension part of the equipment body (12), and the handle (29) can rotate relative to the equipment body (12) and is maintained at a specific angle position in a rotating range.

6. A hand-held cleaner according to claim 5, wherein: the handle (29) rotates within the range of 0-90 degrees by taking the axis II of the extension part of the equipment body (12) as a reference.

7. A hand-held cleaner according to claim 1, wherein: the tail end of the handle (29) is detachably provided with a battery pack (31), and a battery (27) for supplying power to the equipment body (12) is arranged in the battery pack (31).

8. A hand-held cleaner according to claim 1, wherein: and a switch trigger (26) for controlling the start and stop of the equipment body (12) is arranged on the handle (29).

9. A hand-held cleaner according to claim 1, wherein: the dust suction pipe II (7) rotates in the range of 0-60 degrees by taking the axis I of the dust suction pipe I (6) as a reference.

10. A hand-held cleaner according to any one of claims 1 to 9, wherein: the cyclone separation dust collecting device in the equipment body (1) comprises a dust collecting cup (1) and a revolving body I (2) arranged in the dust collecting cup (1), wherein an interlayer between the revolving body I (2) and the dust collecting cup (1) is used for forming a cyclone channel I (100), the area, close to the cup bottom, in the dust collecting cup (1) is used for forming a dust collecting area I (300), a plurality of movable blocking pieces (6) are arranged in the cyclone channel I (100) along the periphery of the revolving body I (2), one end of each movable blocking piece (6) is pivoted and fixed on the periphery of the revolving body I (2), the other end of each movable blocking piece can be lapped on the inner peripheral surface of the dust collecting cup (1) after the dust collecting cup (1) inclines for a certain angle, and is used for preventing large-particle dust (13) in the dust collecting area I (300) from sliding to the cyclone channel I (100).