CN211130856U

CN211130856U - Vacuum cleaner with a vacuum cleaner head

Info

Publication number: CN211130856U
Application number: CN201922139863.8U
Authority: CN
Inventors: 黄建; 王新华
Original assignee: SUZHOU PREMIER ELECTRICAL APPLIANCE CO Ltd
Current assignee: SUZHOU PREMIER ELECTRICAL APPLIANCE CO Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-31
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a vacuum cleaner, which comprises a dust collecting part, a tank with a dust inlet, a dust collecting container and a high-efficiency filter which are arranged in the tank, wherein the dust collecting container comprises a dust collecting bag made of a breathable material, the high-efficiency filter is cylindrical and is sleeved outside the dust collecting bag, an exhaust space is arranged between the high-efficiency filter and the inner wall surface of the tank, and the dust inlet, the dust collecting bag, the high-efficiency filter and the exhaust space are communicated in sequence; the base part comprises a shell body which is adjacent to the lower part of the tank, and an exhaust port which is communicated with the outside is arranged on the shell body; a vacuum electric fan for introducing a dust-containing air flow into the dust bag from the dust inlet and guiding air entering the exhaust space to the exhaust port; and the air pressure alarm unit comprises an air pressure detection element and an alarm, wherein the air pressure detection element is arranged on the tank and used for detecting the pressure of the exhaust space, and the alarm is used for sending an alarm signal to the outside and can decide whether to send the alarm signal or not based on the detection result of the air pressure detection element.

Description

Vacuum cleaner with a vacuum cleaner head

Technical Field

The utility model relates to a cleaning device technical field, in particular to vacuum cleaner.

Background

Traditional knapsack formula vacuum cleaner includes dust catcher host computer and knapsack device usually, and the dust catcher host computer includes the casing, sets up dirt bag and dust hood (filter promptly) in the casing, suction motor, is provided with air intake and air outlet on the casing, and the dirt bag sets up in the air intake outside, and dust hood and suction motor set up in air outlet department, and air intake, dirt bag, dust hood, air outlet and suction motor air current intercommunication in proper order. Because the dust hood is arranged at the air outlet, the effective filtering area of the dust hood is only the sectional area of the air outlet, the filtering area is small, the filtering efficiency is low, and a user needs to frequently replace the filter to maintain a good cleaning effect; in addition, the dust blocking cover and the dust bag are arranged in a split mode, and the dust blocking cover and the dust bag respectively occupy certain space inside the shell, so that the dust bag is small in dust collecting volume, the replacement frequency of the dust bag is relatively high, and the dust bag is inconvenient to use by a user.

In addition, after the dust sucked by the vacuum cleaner reaches a certain amount, the air flow is reduced, the dust collection efficiency is reduced, an operator cannot feel the change of the effect immediately and continues dust collection operation, the dust collection efficiency of the vacuum cleaner is reduced within the same working time, the operator needs to increase the dust collection time to meet the requirement of the environment cleaning standard, and a large amount of labor cost is increased by repeating the dust collection operation. Especially, the labor cost of a nuclear environment workplace with high dust-free requirements or high risk is higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, an object of the present invention is to provide a vacuum cleaner with higher dust collection efficiency.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a vacuum cleaner comprising:

the dust collecting part comprises a tank with a dust inlet, a dust collecting container and a filter are arranged in the tank, the dust collecting container comprises a dust collecting bag made of air-permeable materials, and an exhaust space is formed between the filter and the inner wall surface of the tank; the dust inlet, the dust collecting bag, the filter and the exhaust space are communicated in sequence;

a base portion including a housing adjacent below the canister, the housing having an exhaust port therein communicating with the exterior;

a vacuum electric fan for introducing a dust-laden air stream into said bag from said dust inlet and for directing air entering said exhaust space to said exhaust port;

and the air pressure alarm unit comprises an air pressure detection element and an alarm, wherein the air pressure detection element is arranged on the tank and used for detecting the pressure of the exhaust space, and the alarm is used for sending an alarm signal to the outside and can decide whether to send the alarm signal to the outside or not based on the detection result of the air pressure detection element.

In the above technical solution, preferably, the air pressure detecting element includes an air pressure inductive switch, and the air pressure inductive switch and the alarm are connected in series in an alarm circuit.

In the above technical solution, preferably, the alarm includes a warning light and/or a buzzer disposed on the housing.

In the above technical solution, preferably, a hole communicating with the exhaust space is formed in a wall of the tank, and the air pressure detecting element is assembled at the hole.

In the above technical solution, preferably, the filter is cylindrical and is fitted around the outside of the dust bag.

In the above technical solution, preferably, the filter includes a cylindrical filter element surrounding in a pleated and folded manner to form a circle, and a support member fixed to an outer side and/or an inner side of the cylindrical filter element.

In the above technical solution, preferably, the support member includes a pair of cylindrical support nets, and the cylindrical filter element is sandwiched between the pair of support nets in a pleated form.

In the above technical solution, preferably, the filter further has a bottom cover fixed to the bottom of the support net, and the filter forms a cylindrical structure with an open upper portion and a sealed lower portion.

In the above technical solution, preferably, the tank includes a tank body and a tank cover installed on the top of the tank body in an openable manner, and the dust inlet is disposed on the tank cover.

In the above technical solution, preferably, the upper edges of the dust collecting container and the filter are clamped and fixed between the cover and the tank body.

The utility model discloses an add atmospheric pressure alarm unit, the staff can be as required, set for dust catcher work efficiency index (for example air flow 20L/S), after inhaling certain dust, the dust catcher air flow drops to 20L/S, dust collection efficiency is less than the lower limit index that the staff required, the atmospheric pressure detecting element of dust catcher can start work, the alarm comes outwards alarm signal based on atmospheric pressure detecting element 'S testing result, thereby indicate the staff, need in time change dirt bag or filter, in order to guarantee the operation under the high-efficient dust collection efficiency state of dust catcher, thereby guarantee operating personnel' S work efficiency, it is extravagant to reduce the unnecessary manual work.

Drawings

FIG. 1 is a perspective view of the vacuum cleaner (without the backpack system and the rechargeable battery pack);

FIG. 2 is a schematic cross-sectional view of the interior of the canister of the vacuum cleaner of the present invention;

FIG. 3 is a schematic view of the cover, the paper dust bag, the dust distribution bag and the high efficiency filter of the vacuum cleaner of the present invention;

FIG. 4 is a schematic front view of the high efficiency filter of the present invention;

FIG. 5 is a schematic cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a schematic view of the dust collecting container and the high efficiency filter according to the present invention;

FIG. 7 is an enlarged partial schematic view at B shown in FIG. 1;

fig. 8 is a schematic diagram of a circuit structure of the air pressure alarm unit of the present invention;

wherein: 1. a dust collecting part; 11. a tank; 111. a tank body; 112. a can lid; 12. a dust inlet; 13. an air inlet; 14. a dust collection container; 15. a vacuum electric fan; 16. a dust collection bag; 161. a paper dust bag; 162. a dust distribution bag; 17. a high efficiency filter; 171. a support net; 172. a bottom cover; 18. a motor base; 19. a plug; 20. a sealing gasket; 21. an air pressure alarm unit; 211. an air pressure detecting element; 212. an alarm.

Detailed Description

To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description is made with reference to the accompanying drawings.

The backpack type vacuum cleaner comprises a cleaner main body and a backpack system. The carrying system is fixedly connected with the main body of the vacuum cleaner, the general structure of the carrying system is a connecting structure comprising a back strap, a shoulder strap and the like, so that a user can carry the main body of the vacuum cleaner on the back, and the power supply system of the vacuum cleaner can be powered by a battery or connected with an external power supply. This section is a knowledge and structure known in the art and will not be described further herein.

As shown in fig. 1 to 2, the cleaner main body includes a dust collecting part 1, a base part 18, a vacuum fan 15, and an air pressure alarm unit 21.

The dust collecting part 1 includes a can 11, and the can 11 includes a can body 111 having an open upper portion, and a can cover 112 covering the can body 111. The connecting structure of the tank body 111 and the tank cover 112 is a lock catch type, specifically, a hook is installed on the tank body 111, a circumferential clamping groove is arranged on the outer edge of the tank cover 112, and when the connecting structure is used, the tank cover 112 is fixed on the upper portion of the tank body 111 by the hook being clamped into the clamping groove. The cover 112 is provided with a dust inlet 12, a short air inlet pipe extending downwards is arranged on the dust inlet 12, and the tank 111 is hollow.

The base portion 18 comprises a housing adjacent the underside of the tank and provided with an exhaust port communicating with the outside. The housing is provided integrally with the tank 11.

The vacuum blower 15 is used to introduce a dust-laden air stream into the bag from the dust inlet and to direct air entering the exhaust space to the exhaust port. The vacuum electric fan is arranged on the base part 18 or in the tank 111, and the air inlet 13 of the vacuum electric fan 15 is arranged on the same axis with the dust inlet 12. The base part 18 is provided with a plug 19 which is electrically connected with the vacuum electric fan 15, and the plug 19 can be electrically connected with household commercial power through a power line such as a power strip. In order to facilitate the user's mobile dust-collecting operation, a rechargeable battery pack electrically connected to the vacuum fan 15 may be provided on the base part 18 or on the backpack system instead of the above-mentioned plug 19. The vacuum electric blower 15 includes an impeller assembly and a motor driving the impeller assembly to rotate to generate negative pressure, the motor is disposed in the housing, and the impeller assembly is disposed in the tank 11. Of course, the impeller assembly may be disposed entirely within the housing or may extend partially into the tank.

The air pressure alarm unit 21 includes an air pressure detecting element 211 provided on the tank 11 and detecting the pressure of the exhaust space and an alarm 212 for emitting an alarm signal to the outside, and the alarm 212 can decide whether to emit the alarm signal to the outside based on the detection result of the air pressure detecting element 211.

As shown in fig. 3 to 6, the canister 11 is internally provided with a dust collection container 14 and a high efficiency filter 17.

The dust collecting container 14 comprises a dust collecting bag 16 made of air permeable material, the high-efficiency filter 17 is cylindrical and is sleeved outside the dust collecting bag 16, and an exhaust space is arranged between the high-efficiency filter 17 and the inner wall surface of the tank 11; the dust inlet 12, the dust collecting bag 16, the high-efficiency filter 17 and the exhaust space are communicated in sequence. Specifically, the dust bag 16 is a double-layer dust bag structure; the inner dust bag is a disposable paper dust bag 161 which is easy to replace, and the outer dust bag is a reusable dust bag 162 which is cleaned. The paper dust bag 161 is typically a disposable paper bag made of a single layer of non-woven fabric that is collected with dust and discarded. The dust distribution bag 162 is a dust cloth bag which is composed of a double-layer non-woven fabric surface layer and core cotton clamped in the double-layer non-woven fabric surface layer, and the filtering effect is better. The paper dust bag 161 is sleeved on the inner side of the dust distribution bag 162, the upper end part of the paper dust bag is provided with a mounting plate which radially extends towards the outer side, the upper edges of the second filter 162 and the high-efficiency filter are both fixedly provided with a frame, and a sealing gasket 20 is arranged between the frame and the tank body of the high-efficiency filter and between the frame of the high-efficiency filter and the mounting plate of the paper dust bag. This kind of nested structure of high efficiency filter and dirt bag, space utilization is higher, can install fast and dismantle, can improve the collection dirt volume of dirt bag to a certain extent, and the user need not frequently to change the dust bag, can satisfy user's daily use, increases the convenience that the user used. When the user is installing dust collecting container 14, install high efficiency filter, cloth dirt bag, paper dust bag on the jar body in proper order, then cover lid 112, make the air inlet nozzle stub of lid stretch into in the opening of paper dust bag, the air inlet nozzle stub, advance annex such as dirt mouth 12 and dust absorption scrubbing brush and link to each other, with locking between the lid and the jar body, make the mounting panel of paper dust bag, cloth dirt bag and high efficiency filter's frame compressed tightly to be fixed between the lid and the jar body.

The high efficiency filter 17 is wrapped around the periphery of the dust distribution bag 162, in this embodiment, the paper dust bag, the dust distribution bag and the high efficiency filter are all cylindrical, the high efficiency filter 17 has a first vertical center line extending in the vertical direction, the dust collection bag 16 has a second vertical center line extending in the vertical direction, and the first vertical center line coincides with the second vertical center line. The effective filtering area of the high-efficiency filter 17 can be obviously increased, and the filtering efficiency and the cleaning effect are improved. The high efficiency filter 17 includes a cylindrical filter element surrounded in a pleated manner to form a circle, and a support member fixed to the inside of the cylindrical filter element. Specifically, the high-efficiency filter 17 is a cylindrical structure with an open upper part and a sealed lower part, the support member includes a pair of cylindrical support nets 171, the support nets 171 are metal pull nets connected end to form a cylindrical support structure, a bottom cover 172 is fixed to the lower part of the support nets, and the cylindrical filter element is sandwiched between the pair of support nets 171 in a corrugated form. The gap between a pair of supporting nets is used for placing the high-efficiency filter element (HEPA) folded in a corrugated shape, and the filter element folded in the corrugated shape can increase the filter area to the maximum extent and disperse dust. In order to prevent sharp burrs or bulges from being formed at the joint of the metal pull net to scrape the high-efficiency filter element or scratch fingers, the support net is sealed and fixed at the joint by adopting a smooth plastic splicing strip. Of course, in other embodiments, the supporting member may be disposed outside the cylindrical filter element, or both the inner side and the outer side may be disposed with the supporting member, so as to increase the supporting strength of the mounting structure.

The during operation, the dusty air current gets into the dust catcher main engine body inside through entering dirt mouth 12 under vacuum electric fan 15's suction effect, pass through paper dust bag 161 in proper order, cloth dust bag 162 back, most dust particulate matter is all collected in paper dust bag 161, part fine dust is collected by cloth dust bag 162, a small amount of more tiny dust is collected by high efficiency filter 17, clean air after filtering at last is gone into wind gap 13 from the motor and is passed through the motor room, the air exit discharges to dust catcher main engine body 1 outside, paper dust bag 161 can be abandoned after being full of the dust as disposable article collection, the cloth dust bag can regularly wash or change, and the utility model provides a high efficiency filter, owing to showing increase effective area of contact, consequently, the change cycle is longer, can permanent use.

In order to better play the filtering action, improve high efficiency filter's filter effect the utility model discloses a in the middle of other embodiments, still can design high efficiency filter into multilayer filtration, perhaps can also set high efficiency filter's bottom to the filtration the same with its periphery lateral wall, also can set up the high efficiency filter core of fold on high efficiency filter's the bottom promptly.

It should be noted that the dust filtering structure in the vacuum cleaner, that is, the structure formed by the paper dust bag, the dust distribution bag and the high efficiency filter sleeved outside the dust distribution bag, can also be applied to a common cleaner, such as a handheld cleaner or a horizontal cleaner.

As shown in fig. 1, 7-8, the alarm 212 includes a warning light and a buzzer disposed on the housing, a hole communicated with the exhaust space is formed on the wall of the tank 11, an air pressure detecting element 211 is mounted at the hole, the air pressure detecting element 211 includes an air pressure sensing switch, the air pressure sensing switch and the alarm 212 are connected in series in an alarm circuit, by adding an air pressure alarm unit, a worker can set a working efficiency index of the dust collector (such as an air flow rate of 20L/S) according to needs, when certain dust is sucked, the air flow rate of the dust collector is reduced to 20L/S, the dust collection efficiency is lower than a lower limit index required by the worker, the air pressure detecting element of the dust collector starts working, and the alarm gives an alarm signal outwards based on a detection result of the air pressure detecting element, thereby prompting the worker, and replacing a bag or a filter in time to ensure the operation in a high-efficiency state of the dust collector, thereby ensuring the working efficiency of the operator and reducing unnecessary labor waste.

It should be noted that the dust filtering structure and the air pressure warning unit of the dust collecting part in the above embodiments are not limited to the backpack type vacuum cleaner, and may be applied to other embodiments, for example, vacuum cleaners based on the negative pressure suction principle, such as an upright type vacuum cleaner and a canister type vacuum cleaner.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A vacuum cleaner, comprising:

the dust collecting part (1) comprises a tank (11) with a dust inlet (12), a dust collecting container (14) and a filter (17) are arranged in the tank (11), the dust collecting container (14) comprises a dust collecting bag (16) made of air-permeable materials, and an exhaust space is arranged between the filter (17) and the inner wall surface of the tank (11); the dust inlet (12), the dust collecting bag (16), the filter (17) and the exhaust space are communicated in sequence;

a base portion (18) comprising a housing abutting below the tank (11), the housing being provided with an exhaust port communicating with the outside;

a vacuum electric fan (15) for introducing a dust-laden air flow from said dust inlet (12) into said dust bag (16) and for directing air entering said exhaust space to said exhaust port;

and an air pressure alarm unit (21) including an air pressure detecting element (211) provided on the tank (11) and detecting the pressure of the exhaust space and an alarm (212) for emitting an alarm signal to the outside, the alarm (212) being capable of deciding whether to emit the alarm signal to the outside based on a detection result of the air pressure detecting element (211).

2. A vacuum cleaner according to claim 1, wherein: the air pressure detection element (211) comprises an air pressure inductive switch, and the air pressure inductive switch and the alarm (212) are connected in series in an alarm circuit.

3. A vacuum cleaner according to claim 2, wherein: the alarm (212) comprises a warning lamp and/or a buzzer which are arranged on the shell.

4. A vacuum cleaner according to claim 3, wherein: the wall of the tank (11) is provided with a hole communicated with the exhaust space, and the air pressure detection element (211) is assembled at the hole.

5. A vacuum cleaner according to claim 1, wherein: the filter (17) is cylindrical and is sleeved outside the dust collection bag (16).

6. A vacuum cleaner according to claim 1, wherein: the filter (17) comprises a cylindrical filter core and a supporting component, wherein the cylindrical filter core is surrounded by the cylindrical filter core in a fold folding mode, and the supporting component is fixed on the outer side and/or the inner side of the cylindrical filter core.

7. A vacuum cleaner according to claim 6, wherein: the supporting component comprises a pair of cylindrical supporting nets (171), and the cylindrical filter core is clamped between the pair of supporting nets (171) in a corrugated shape.

8. A vacuum cleaner according to claim 7, wherein: the filter (17) is also provided with a bottom cover (172) fixed at the bottom of the supporting net (171), and the filter (17) forms a cylindrical structure with an upper opening and a lower sealing part.

9. A vacuum cleaner according to claim 1, wherein: the tank (11) comprises a tank body (111) and a tank cover (112) which can be opened and installed at the top of the tank body (111), and the dust inlet (12) is arranged on the tank cover (112).

10. A vacuum cleaner according to claim 9, wherein: the upper edges of the dust collecting container (14) and the filter (17) are clamped and fixed between the tank cover (112) and the tank body (111).