Dust collection filtering structure of handheld dust collector

Abstract

The utility model relates to the field of dust collectors, in particular to a dust collection filter structure of a handheld dust collector, which is fixedly mounted on the handheld dust collector and comprises a shell, a dust collection pipe is fixedly communicated with the middle of the top of the shell, a filter box is detachably mounted on the inner side of the shell through a clamping component, and a filter screen is fixed in the filter box. The dust collector has the beneficial effects that the dust collector has double filtering functions, so that the dust filtering effect is improved, the filtering box can be conveniently and quickly disassembled and assembled, so that the filtering net is conveniently cleaned, the dust collector is convenient and fast to use, and the dust collector is suitable for popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaners, specifically to a dust collection and filtration structure for a handheld vacuum cleaner. Background Technology

[0002] A handheld vacuum cleaner is a portable cleaning device mainly used for cleaning small spaces and hard-to-reach areas. It uses an electric fan to generate suction and negative pressure to suck in dust, which is then filtered through a dust bag and discharged, thus achieving the cleaning function.

[0003] While handheld vacuum cleaners on the market can perform vacuuming and cleaning functions, their dust filter structure is inconvenient to disassemble and assemble, making it difficult to clean the internal filter in a convenient way, and further improvements are needed.

[0004] Therefore, it is necessary to invent a dust filtration structure for a handheld vacuum cleaner. Utility Model Content

[0005] Therefore, this utility model provides a dust filtration structure for a handheld vacuum cleaner to solve the problem mentioned in the background art that although the handheld vacuum cleaners on the market can achieve the function of dust cleaning, their dust filtration structure is inconvenient to disassemble and assemble, thus making it difficult to clean the internal filter screen in a convenient way.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust collection and filtration structure for a handheld vacuum cleaner, fixedly installed on the handheld vacuum cleaner, including a shell, a suction tube fixedly connected to the middle of the top of the shell, a filter box detachably installed on the inner side of the shell through a snap-fit ​​component, a filter screen fixed inside the filter box, a suction component fixed on the top of the shell, and a secondary filtration component fixed on the suction component.

[0007] Preferably, the snap-fit ​​assembly includes a slot, which is formed on the top of the inner wall of the housing, and a first through hole is vertically formed at the middle of the top of the inner wall of the slot.

[0008] Preferably, a second through hole is provided at the middle of the top of the filter box, and the top of the filter box is inserted into the slot, with the first through hole and the second through hole corresponding to each other vertically.

[0009] Preferably, the snap-fit ​​assembly further includes a tray, a connecting pipe fixed at the center of the tray, the connecting pipe communicating with the inside of the filter screen, a connecting hose fixedly connected to the bottom end of the connecting pipe, the bottom end of the connecting hose being fixedly connected to the top end of the suction pipe, and the bottom end of the filter box abutting against the top of the tray.

[0010] Preferably, mounting grooves are symmetrically provided on both sides of the bottom of the inner wall of the outer shell, a return spring is vertically fixed to the bottom of the inner wall of each mounting groove, a baffle is fixed at the opening of each mounting groove, a slider is slidably connected in each mounting groove, the bottom of the slider is fixed to the top of the return spring, and a guide rod is vertically fixed to the center of the top of the slider.

[0011] Preferably, each of the baffles has a limiting hole at its center, the top of the guide rod vertically penetrates the limiting hole, and the surface of the guide rod is in contact with the wall of the limiting hole. The top of the guide rod is fixed to the bottom of the support plate.

[0012] Preferably, the suction assembly includes a box body, the bottom end of which is fixed to the top end of the outer shell, the first through hole is connected to the inside of the box body, and a fan is fixed inside the box body.

[0013] Preferably, the secondary filtration component includes an air outlet, and a dust filter is fixed inside the air outlet.

[0014] The beneficial effects of this utility model are: by using the outer shell, suction pipe, snap-fit ​​component, filter box, filter screen, suction component and secondary filtration component together, it can have a dual filtration function, thereby improving the dust filtration effect. It can also easily and quickly disassemble and assemble the filter box, thereby facilitating the cleaning of the filter screen. It is convenient to use and suitable for widespread application. Attached Figure Description

[0015] Figure 1 A structural cross-sectional view provided for this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A in the image;

[0017] Figure 3 for Figure 2 Enlarged view of the structure at point B in the image;

[0018] Figure 4 The structural front view provided for this utility model;

[0019] Figure 5 This is a structural diagram of the filter box when it is disassembled according to the present invention.

[0020] In the diagram: 1. Outer shell; 2. Suction pipe; 3. Filter box; 4. Filter screen; 5. Slot; 6. First through hole; 7. Second through hole; 8. Support plate; 9. Connecting pipe; 10. Connecting hose; 11. Mounting slot; 12. Return spring; 13. Baffle; 14. Slider; 15. Guide rod; 16. Limiting hole; 17. Box body; 18. Exhaust fan; 19. Air outlet; 20. Dust filter. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Please refer to the appendix. Figures 1-5 The present invention provides a dust filtration structure for a handheld vacuum cleaner, which is fixedly installed on the handheld vacuum cleaner. It includes a shell 1, a suction tube 2 fixedly connected to the middle of the top of the shell 1, a filter box 3 detachably installed on the inner side of the shell 1 through a snap-fit ​​component, a filter screen 4 fixed inside the filter box 3 for filtering and dust removal, a suction component fixed on the top of the shell 1, and a secondary filtration component fixed on the suction component.

[0023] The snap-fit ​​assembly includes a slot 5, which is located on the top of the inner wall of the outer shell 1. A first through hole 6 is vertically opened in the middle of the top of the inner wall of the slot 5, and a second through hole 7 is opened in the middle of the top of the filter box 3. The top of the filter box 3 is inserted into the slot 5, and the first through hole 6 and the second through hole 7 are vertically connected.

[0024] The snap-fit ​​assembly also includes a tray 8, with a connecting pipe 9 fixed at its center. The connecting pipe 9 is connected to the inside of the filter screen 4, and a connecting hose 10 is fixedly connected to the bottom end of the connecting pipe 9. The bottom end of the connecting hose 10 is fixedly connected to the top end of the suction pipe 2. Thus, under the connection between the connecting pipe 9 and the connecting hose 10, dust sucked in by the suction pipe 2 can enter the filter screen 4 and be filtered and removed by the filter screen 4. The bottom end of the filter box 3 abuts against the top of the tray 8. Installation grooves 11 are symmetrically provided on both sides of the bottom of the inner wall of the outer casing 1. A return spring 12 is vertically fixed to the bottom of the inner wall of each installation groove 11. A baffle 13 is fixed to the opening of each installation groove 11, and a slider 1 is slidably connected within each installation groove 11. 4. The bottom of the slider 14 is fixed to the top of the return spring 12. A guide rod 15 is vertically fixed to the center of the top of the slider 14. Limiting holes 16 are opened in the center of each baffle 13. The top of the guide rod 15 vertically passes through the limiting hole 16, and the surface of the guide rod 15 is in contact with the wall of the limiting hole 16. The top of the guide rod 15 is fixed to the bottom of the support plate 8. Specifically, under the elastic action of the return spring 12, the support plate 8 can be pressed upward to squeeze the filter box 3, so that the top of the filter box 3 is inserted into the slot 5 opened at the top of the inner wall of the outer shell 1, thus realizing the installation and fixation of the filter box 3. When it is necessary to disassemble the filter box 3, the user only needs to pull down the filter box 3, that is, press down the support plate 8, so that the top of the filter box 3 moves out of the slot (e.g., Figure 5 As shown in the figure, the filter box 3 can be easily and quickly disassembled and assembled, thus facilitating the cleaning of the filter screen 4 and making it convenient to use;

[0025] The suction assembly includes a box body 17, the bottom of which is fixed to the top of the outer shell 1. The first through hole 6 is connected to the inside of the box body 17. A suction fan 18 is fixed inside the box body 17. Under the action of the first through hole 6 and the second through hole 7, the gas filtered and dust-removed by the filter screen 4 in the filter box 3 can re-enter the box body 17. Specifically, when the suction fan 18 is running, it can generate suction force, thereby sucking the dust in through the suction pipe 2.

[0026] The secondary filtration component includes an air outlet 19, inside which a dust filter 20 is fixed. Specifically, under the action of the dust filter 20, the gas entering the housing 17 can be filtered and dust removed again. That is, this utility model can have a dual filtration function, thereby improving the dust filtration effect.

[0027] The usage process of this utility model is as follows: When in use, the exhaust fan 18 is running. When the exhaust fan 18 is running, it can generate suction force, thereby sucking dust into the suction pipe 2. Under the connection of the connecting pipe 9 and the connecting hose 10, the dust sucked in by the suction pipe 2 can enter the filter screen 4, and be filtered and removed by the filter screen 4. Under the action of the first through hole 6 and the second through hole 7, the gas filtered and removed by the filter screen 4 in the filter box 3 can re-enter the box body 17. Under the action of the dust filter 20, the gas entering the box body 17 can be filtered and removed again. That is, this utility model can have a dual filtration function, thereby improving the dust filtration effect.

[0028] Furthermore, under the elastic action of the return spring 12, the support plate 8 can press the filter box 3 upward, thereby keeping the top of the filter box 3 inserted into the slot 5 opened at the top of the inner wall of the outer casing 1, thus achieving the installation and fixation of the filter box 3. When it is necessary to disassemble the filter box 3, the user only needs to pull down the filter box 3, that is, press down the support plate 8, so that the top of the filter box 3 moves out of the slot (e.g., Figure 5 As shown in the figure, the filter box 3 can be easily and quickly disassembled and assembled, thus facilitating the cleaning of the filter screen 4 and making it convenient to use.

[0029] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A dust collection and filtration structure for a handheld vacuum cleaner, fixedly installed on the handheld vacuum cleaner, comprising a housing (1), wherein a suction tube (2) is fixedly connected to the middle of the top of the housing (1), characterized in that: A filter box (3) is detachably installed on the inside of the outer shell (1) via a snap-fit ​​assembly. A filter screen (4) is fixed inside the filter box (3). A suction assembly is fixed on the top of the outer shell (1), and a secondary filter assembly is fixed on the suction assembly.

2. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 1, characterized in that: The snap-fit ​​assembly includes a slot (5), which is located on the top of the inner wall of the outer shell (1). A first through hole (6) is vertically provided at the middle of the top of the inner wall of the slot (5).

3. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 2, characterized in that: The filter box (3) has a second through hole (7) at the middle of the top. The top of the filter box (3) is inserted into the slot (5). The first through hole (6) and the second through hole (7) are connected vertically.

4. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 2, characterized in that: The snap-fit ​​assembly also includes a tray (8), a connecting pipe (9) is fixed at the center of the tray (8), the connecting pipe (9) is connected to the inside of the filter screen (4), the bottom end of the connecting pipe (9) is fixedly connected to a connecting hose (10), the bottom end of the connecting hose (10) is fixedly connected to the top end of the suction pipe (2), and the bottom end of the filter box (3) abuts against the top of the tray (8).

5. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 4, characterized in that: The inner wall of the outer shell (1) has symmetrically provided mounting grooves (11) on both sides. A return spring (12) is vertically fixed at the bottom of the inner wall of each mounting groove (11). A baffle (13) is fixed at the opening of each mounting groove (11). A slider (14) is slidably connected in each mounting groove (11). The bottom of the slider (14) is fixed to the top of the return spring (12). A guide rod (15) is vertically fixed at the center of the top of the slider (14).

6. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 5, characterized in that: Each of the baffles (13) has a limiting hole (16) in the center. The top of the guide rod (15) passes vertically through the limiting hole (16), and the surface of the guide rod (15) is in contact with the wall of the limiting hole (16). The top of the guide rod (15) is fixed to the bottom of the support plate (8).

7. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 2, characterized in that: The suction assembly includes a box (17), the bottom of which is fixed to the top of the outer shell (1), the first through hole (6) is connected to the inside of the box (17), and an exhaust fan (18) is fixed inside the box (17).

8. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 7, characterized in that: The secondary filtration assembly includes an air outlet (19), and a dust filter (20) is fixed inside the air outlet (19).

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