Household dust collector with dust blowing function

Abstract

The utility model discloses a household dust collector with a dust blowing function. The household dust collector comprises a shell, a filter unit is fixedly arranged at the bottom of the shell, a control unit used for air suction and air exhaust is arranged in the shell, an air inlet unit is detachably and replaceably arranged on the side portion of the filter unit, and an air outlet unit is detachably arranged on the top of the shell. The dust collection and blowing device is reasonable in structural design, the dust collection function at the air inlet end and the dust blowing function at the air outlet end can be achieved when the dust collection and blowing device is used by adopting the mode that the shell is detachably and replaceably connected with the dust collection and blowing device and cooperating with the motor with the air suction and exhaust functions in the cavity, and the dust collection and blowing device is simple in structure and convenient to use through two-layer filtration. According to the dust collector, more efficient dust and particle separation can be provided, blockage of the filter screen is reduced, the service life of the dust collector is prolonged, durability of suction force is kept, the filtering efficiency is improved, dust entering the motor is reduced, the air inlet unit and the air outlet unit are detachable and replaceable, the practicability of the dust collector is improved, and the dust collector is worthy of popularization. And joints of the air inlet and the air outlet are convenient to clean.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a household vacuum cleaner with a dust blowing function. Background Art

[0002] With the development of the times and the improvement of living standards, vacuum cleaners, especially household vacuum cleaners, have become widely used. A vacuum cleaner is an appliance that uses an electric motor (dust collector motor) to create negative air pressure within a sealed housing to suck in dust and debris. The main function of current vacuum cleaners is to collect dust and debris from floors, carpets, and other areas in the home.

[0003] Existing household vacuum cleaners have relatively simple functions, generally only having a vacuuming function, and it is difficult to take into account both the vacuuming and blowing functions at the same time. However, in actual application scenarios, in order to achieve the purpose of dust removal, multiple functions must be possessed. For example, when using a vacuum cleaner commonly used for household dust removal, the suction nozzle is not directed at the dusty area and sucked violently. Instead, a tool is needed to scrape or blow away the dirt before the vacuum cleaner can be used to suck it up. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a household vacuum cleaner with a dust blowing function in view of the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a household vacuum cleaner with a dust blowing function, comprising a shell, a filter unit fixedly provided at the bottom of the shell, a control unit for suction and exhaust air provided inside the shell, a detachable and replaceable air inlet unit provided on the side of the filter unit, and a detachable air outlet unit provided on the top of the shell.

[0006] Preferably, the shell includes a left shell and a right shell, and a left handle and a right handle are respectively integrally formed on the left shell and the right shell.

[0007] Preferably, the filter unit includes a primary filter element and a secondary filter element, the secondary filter element is arranged inside the primary filter element, the primary filter element is fixedly arranged at the bottom of the shell, and the secondary filter element is detachably arranged at the bottom of the shell.

[0008] Preferably, the first-level filter element includes a dust cup, a waste opening for removing dust is provided at the bottom of the dust cup, a dust cup bottom cover for opening and closing the waste opening is rotatably provided on the waste opening, and the dust cup bottom cover is rotatably provided on the bottom of the dust cup through a rotating shaft.

[0009] Preferably, the secondary filter element includes a HEPA filter, the top of the HEPA filter is detachably connected to the bottom of the shell through a HEPA bottom, a HEPA cover is provided at the bottom of the HEPA filter, a primary filter space is formed between the HEPA filter and the primary filter element, and the inside of the HEPA filter is a secondary filter space.

[0010] Preferably, the control unit includes an AC motor and a DC motor, the DC motor is arranged inside the AC motor, the bottom of the control unit is fixed to the bottom of the shell, and an air duct for circulating air is formed between the control unit and the inner wall of the shell.

[0011] Preferably, the air inlet unit includes a main suction head detachably arranged on the side of the dust filter cup, a detachable and replaceable nozzle connector is provided on the outside of the main suction head, an air inlet cooperating with the air inlet unit is provided on the side of the dust filter cup, and an air inlet part is clamped on the air inlet.

[0012] Preferably, the side of the air inlet member away from the air inlet unit is the air inlet, and a dust shield for opening and closing the air inlet is rotatably provided on the air inlet, and the dust shield is rotatably provided on the air inlet member through a torsion spring provided on the air inlet member.

[0013] Preferably, the air outlet unit includes an upper cover snap-fitted to the top of the shell and a decorative piece snap-fitted to the upper cover. An inwardly inclined air outlet surface is provided in the middle of the upper cover around the outer edge of the decorative piece. Air outlets are evenly arranged in a ring on the air outlet surface. A first wind gathering area for increasing wind force is formed between the air outlet and the bottom surface of the decorative piece.

[0014] Preferably, a detachable and replaceable dust-blowing nozzle is provided on the top of the upper cover, and a decorative part is arranged inside the dust-blowing nozzle; the dust-blowing nozzle includes an integrally formed first wind-collecting part and a second wind-collecting part, and the first wind-collecting part is arranged close to the shell; the outer walls of the first wind-collecting part and the second wind-collecting part are inclined inward from bottom to top, and the inner diameter of any cross-section of the first wind-collecting part is larger than the inner diameter of any cross-section of the second wind-collecting part; the first wind-collecting part is provided with a second wind-collecting area for increasing wind force, and the second wind-collecting part is provided with a third wind-collecting area for increasing wind force; a brush for cleaning is provided on the top of the second wind-collecting part.

[0015] Compared with the existing technology, the advantages of the present invention are: the present invention adopts a detachable and replaceable dust suction and dust blowing connection method on the shell, and cooperates with the motor with suction and exhaust functions in the cavity, so that when in use, the functions of dust suction at the air inlet end and dust blowing at the air outlet end can be realized, and the structure is simple. Through two layers of filtration, it can provide more efficient dust and particle separation, reduce the clogging of the filter, thereby extending the service life of the vacuum cleaner and maintaining the durability of suction, improving the filtration efficiency, reducing the dust entering the motor, and the air inlet unit and the air outlet unit are both detachable and replaceable, which improves the practicality of the vacuum cleaner and facilitates the cleaning of the joints of the air inlet and outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the air inlet unit of the utility model;

[0019] Figure 4 This is a schematic diagram of the decomposition structure of the filter unit of the utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the air outlet unit of the utility model;

[0021] Figure 6 This is a schematic diagram of the exploded structure of the control unit of the utility model;

[0022] Figure 7 This is a structural diagram of the nozzle connector of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the blowpipe of the utility model.

[0024] Figure numerals: 1, left shell; 2, right shell; 3, left handle; 4, right handle; 5, dust cup; 6, waste opening; 7, dust cup bottom cover; 8, rotating shaft; 9, HEPA filter; 10, HEPA bottom; 11, HEPA cover; 12, primary filter space; 13, secondary filter space; 14, AC motor; 15, DC motor; 16, air duct; 17, main machine nozzle; 18, vacuum nozzle connector; 19, dust collection Nozzle connector; 20. Air inlet; 21. Air inlet piece; 22. Dust shield; 23. Torsion spring; 24. Upper cover; 25. Decorative piece; 26. Air outlet surface; 27. Air outlet; 28. First air gathering area; 29. ​​Dust blowing nozzle; 30. First air gathering piece; 31. Second air gathering piece; 32. Second air gathering area; 33. Third air gathering area; 34. Brush; 35. Blowing tube; 36. Connecting part; 37. Stretching part; 38. Air outlet part. DETAILED DESCRIPTION

[0025] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0026] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] Moreover, some of the above-mentioned terms may be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For ordinary technicians in this field, the specific meanings of these terms in this utility model can be understood according to the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal connections between two devices, elements, or components. The connection methods discussed herein are prior art and are common knowledge to those skilled in the art without modification. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] like Figures 1 to 8 As shown, the utility model provides a household vacuum cleaner with a dust blowing function, comprising a shell; specifically, a filter unit is fixedly provided at the bottom of the shell, a control unit for suction and exhaust is provided inside the shell, an air inlet unit is detachably and replaceably provided on the side of the filter unit, and an air outlet unit is detachably provided on the top of the shell.

[0031] The housing includes a left housing 1 and a right housing 2. Specifically, a left handle 3 and a right handle 4 are integrally formed on the left housing 1 and the right housing 2, respectively. In the prior art, the housing and handle are usually designed as separate parts. The integrated design of the present invention improves the strength and stability of the vacuum cleaner.

[0032] The filter unit includes a primary filter element and a secondary filter element; specifically, the secondary filter element is arranged inside the primary filter element, the primary filter element is fixedly arranged at the bottom of the shell, and the secondary filter element is detachably arranged at the bottom of the shell.

[0033] The primary filter element includes a dust cup 5, and a waste opening 6 for removing dust is provided at the bottom of the dust cup 5. Specifically, a dust cup bottom cover 7 for opening and closing the waste opening 6 is rotatably provided on the waste opening 6. The dust cup bottom cover 7 is rotatably provided at the bottom of the dust cup 5 via a rotating shaft 8. The top of the dust cup 5 is fixedly connected to the bottom of the housing by screws, and the user removes the waste dust filtered in the dust cup 5 by rotating the dust cup bottom cover 7. In the prior art, the dust cup 5 is usually detachably mounted on the bottom of the housing. The user needs to remove the dust cup 5 from the bottom of the housing in order to pour out the waste dust in the dust cup 5. This will cause the dust cup 5 to shake and loosen over time. After loosening, waste dust will leak out from the gap between the dust cup 5 and the housing, reducing the dust collection efficiency.

[0034] The secondary filter element includes a HEPA filter 9, the top of which is detachably connected to the bottom of the shell through a HEPA bottom 10, and a HEPA cover 11 is provided at the bottom of the HEPA filter 9; specifically, a primary filter space 12 is formed between the HEPA filter 9 and the primary filter element, and a secondary filter space 13 is formed inside the HEPA filter 9.

[0035] The control unit includes an AC motor 14 and a DC motor 15, and the DC motor 15 is arranged inside the AC motor 14; specifically, the bottom of the control unit is fixed to the bottom of the shell, and an air duct 16 for circulating air is formed between the control unit and the inner wall of the shell.

[0036] The power of the control unit of the utility model is greater than 600W. The motor power of the vehicle-mounted vacuum cleaner with dust blowing function in the prior art is within 100W. The high-power motor improves the suction force of the dust and improves the efficiency of dust collection and blowing.

[0037] The air inlet unit includes a main suction head 17 that is detachably arranged on the side of the dust filter cup 5, and a detachable and replaceable nozzle connector is provided on the outside of the main suction head 17; specifically, an air inlet 20 that cooperates with the air inlet unit is provided on the side of the dust filter cup 5, and an air inlet part 21 is clamped on the air inlet 20.

[0038] like Figure 7 As shown, the nozzle connector includes a vacuum nozzle connector 18 for sucking the vacuum bag and a dust suction nozzle connector 19 for vacuuming; specifically, the dust suction nozzle connector 19 includes an electric dust suction connector and a manual dust suction connector. The figure shows a manual dust suction connector. If the user needs to replace the electric dust suction connector that matches the vacuum cleaner of the present invention, the main suction head 17 needs to be replaced at the same time.

[0039] The side of the air inlet member 21 away from the air inlet unit is the air inlet 20. A dust shield 22 for opening and closing the air inlet 20 is rotatably provided on the air inlet 20. Specifically, the dust shield 22 is rotatably provided on the air inlet member 21 via a torsion spring 23 provided on the air inlet member 21. When not in use, the dust shield 22 blocks the air inlet 20 under the action of its own gravity, keeping the air inlet 20 closed and ensuring that the interior of the filter unit remains clean and dry when not in use. When in use, the control unit operates, generating negative pressure inside the housing and the filter unit. When air enters the filter unit from the air inlet 20, the air pushes the dust shield 22 toward the filter unit, and the dust shield 22 rotates around the torsion spring 23 under the action of the wind pressure from the air inlet 20.

[0040] The air outlet unit comprises an upper cover 24 snap-fitted to the top of the housing and a decorative member 25 snap-fitted to the upper cover 24. An inwardly inclined air outlet surface 26 is provided in the middle of the upper cover 24, surrounding the outer edge of the decorative member 25. Specifically, air outlets 27 are evenly arranged in a circular pattern on the air outlet surface 26, forming a first air gathering area 28 for increasing wind force between the air outlets 27 and the bottom surface of the decorative member 25. Due to the oblique arrangement of the air outlets 27, air is discharged at an angle, ranging from 30° to 60°. This first air gathering area 28 achieves the effect of annularly gathering air and increasing wind force.

[0041] A detachable and replaceable dust blowing nozzle 29 is provided on the top of the upper cover 24, and the decorative part 25 is arranged in the dust blowing nozzle 29; the dust blowing nozzle 29 includes an integrally formed first wind gathering piece 30 and a second wind gathering piece 31, and the first wind gathering piece 30 is arranged close to the shell; specifically, the outer walls of the first wind gathering piece 30 and the second wind gathering piece 31 are both inclined inward and contracted from bottom to top, and the inner diameter of any cross section of the first wind gathering piece 30 is larger than the inner diameter of any cross section of the second wind gathering piece 31; the first wind gathering piece 30 is provided with a second wind gathering area 32 for increasing wind force, and the second wind gathering piece 31 is provided with a third wind gathering area 33 for increasing wind force; a brush 34 for cleaning is provided on the top of the second wind gathering piece 31.

[0042] The first wind gathering area 28, the second wind gathering area 32 and the third wind gathering area 33 all have the effect of gathering wind and increasing wind force, and the wind gathering effect and pressure reduction effect increase one by one. Therefore, the wind finally coming out of the second wind gathering part 31 has a strong wind force, achieving the effect of long-distance blowing and large wind volume.

[0043] like Figure 8 As shown, the dust blowing nozzle 29 can be replaced with a blow tube 35 for blowing air and drying the pet's hair. The blow tube 35 includes a connecting portion 36 connected to the upper cover 24, a stretching portion 37 and an air outlet portion 38 for discharging air. The stretching portion 37 is extendable and retractable and is arranged between the connecting portion 36 and the air outlet portion 38.

[0044] The working principle of the present invention is as follows: the control unit starts to work, negative pressure is generated inside the shell and the filter unit, air enters the air inlet unit into the air inlet member 21, the dust shield 22 provided on the air inlet member 21 is pushed open under the action of wind pressure, the dust shield 22 rotates toward the filter unit around the torsion spring 23, the wind enters the primary filter space 12 from the air inlet 20, and then enters the secondary filter space 13 through the HEPA filter 9. The air after two layers of filtration enters the air duct 16 in the shell, and then is discharged through the air outlet 27 of the upper cover 24. The wind is in the first wind gathering area 28. The first pressure collection and wind gathering is achieved, and the wind force increases. Then, the wind passes through the second wind gathering area 32 of the dust blowing nozzle 29. Since the outer wall of the first wind gathering component 30 is inwardly contracted and inclined from bottom to top, the wind is pressured and gathered for the second time in the second wind gathering area 32, and the wind force continues to increase. Then, the wind passes through the third wind gathering area 33 of the dust blowing nozzle 29. Similar to the second wind gathering area 32, the wind is pressured and gathered for the third time in the third wind gathering area 33, and the wind force and wind speed are increased to the maximum. Finally, the wind blown out by the brush 34 connected to the second wind gathering component 31 achieves the effect of long-distance blowing and large air volume.

[0045] The advantages of the present invention are: by adopting a detachable and replaceable dust suction and dust blowing connection method on the shell, and cooperating with the motor with suction and exhaust functions in the cavity, the functions of dust suction at the air inlet end and dust blowing at the air outlet end can be realized when in use, and the structure is simple. Through two layers of filtration, it can provide more efficient dust and particle separation, reduce the clogging of the filter, thereby extending the service life of the vacuum cleaner and maintaining the durability of suction, improving the filtration efficiency, reducing the dust entering the motor, and the air inlet unit and the air outlet unit are both detachable and replaceable, which improves the practicality of the vacuum cleaner and facilitates cleaning the joints of the air inlet 20 and the air outlet 27.

[0046] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, described in this specification, unless otherwise inconsistent.

[0047] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, and bonding in the existing technology, which will not be described in detail here.

[0048] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scope based on the concept of the present invention. The content of this specification should not be understood as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A household vacuum cleaner with a dust blowing function, comprising a housing, characterized in that: The bottom of the housing is fixed with a filter unit, the housing is provided with a control unit for air suction and exhaust, the side of the filter unit is detachably and replaceably provided with an air inlet unit, and the top of the housing is detachably provided with an air outlet unit; The air outlet unit includes an upper cover snap-fitted to the top of the housing and a decorative piece snap-fitted to the upper cover. An inwardly inclined air outlet surface is provided in the middle of the upper cover around the outer edge of the decorative piece. Air outlets are evenly arranged in a circular pattern on the air outlet surface. A first air gathering area for increasing wind force is formed between the air outlets and the bottom surface of the decorative piece. The top of the upper cover is provided with a detachable and replaceable dust blowing nozzle, and the decorative part is arranged inside the dust blowing nozzle; the dust blowing nozzle includes an integrally formed first wind gathering piece and a second wind gathering piece, and the first wind gathering piece is arranged close to the shell; the outer walls of the first wind gathering piece and the second wind gathering piece are inclined inward from bottom to top, and the inner diameter of any cross section of the first wind gathering piece is larger than the inner diameter of any cross section of the second wind gathering piece; the first wind gathering piece is provided with a second wind gathering area for increasing wind force, and the second wind gathering piece is provided with a third wind gathering area for increasing wind force; the top of the second wind gathering piece is provided with a brush for cleaning.

2. A household vacuum cleaner with a dust blowing function according to claim 1, characterized in that: The shell comprises a left shell and a right shell, and a left handle and a right handle are respectively integrally formed on the left shell and the right shell.

3. A household vacuum cleaner with a dust blowing function according to claim 1, characterized in that: The filter unit includes a primary filter element and a secondary filter element. The secondary filter element is arranged inside the primary filter element. The primary filter element is fixedly arranged at the bottom of the shell, and the secondary filter element is detachably arranged at the bottom of the shell.

4. A household vacuum cleaner with a dust blowing function according to claim 3, characterized in that: The first-level filter element includes a dust cup, a waste opening for removing dust is provided at the bottom of the dust cup, a dust cup bottom cover is rotatably provided on the waste opening for opening and closing the waste opening, and the dust cup bottom cover is rotatably provided on the bottom of the dust cup through a rotating shaft.

5. The household vacuum cleaner with dust blowing function according to claim 3, characterized in that: The secondary filter element includes a HEPA filter, the top of the HEPA filter is detachably connected to the bottom of the shell through a HEPA bottom, a HEPA cover is provided at the bottom of the HEPA filter, a primary filter space is formed between the HEPA filter and the primary filter element, and the inside of the HEPA filter is a secondary filter space.

6. The household vacuum cleaner with dust blowing function according to claim 1, characterized in that: The control unit includes an AC motor and a DC motor. The DC motor is arranged inside the AC motor. The bottom of the control unit is fixed to the bottom of the shell. An air duct for circulating air is formed between the control unit and the inner wall of the shell.

7. The household vacuum cleaner with dust blowing function according to claim 4, characterized in that: The air inlet unit includes a main suction head that is detachably arranged on the side of the filter dust cup, a detachable and replaceable nozzle connector is provided on the outside of the main suction head, an air inlet that cooperates with the air inlet unit is provided on the side of the filter dust cup, and an air inlet piece is clamped on the air inlet.

8. The household vacuum cleaner with dust blowing function according to claim 7, characterized in that: The side of the air inlet member away from the air inlet unit is the air inlet. A dust shield for opening and closing the air inlet is rotatably provided on the air inlet. The dust shield is rotatably provided on the air inlet member through a torsion spring provided on the air inlet member.

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