CN212213637U

CN212213637U - Vacuum cleaner

Info

Publication number: CN212213637U
Application number: CN201922115509.1U
Authority: CN
Inventors: 陈智青
Original assignee: Ningbo Qihang Technology Co ltd
Current assignee: Zhejiang Qixiang Technology Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-12-25
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a vacuum cleaner, a dust absorption pipeline; the dust cup assembly is arranged above the dust absorption pipeline, and an air inlet of the dust cup assembly is communicated with an upper port of the dust absorption pipeline; the negative pressure device is arranged above the dust cup assembly, and an air induction port of the negative pressure device is communicated with the upper end of the dust cup assembly; and the air inlet of the negative pressure device and the air inlet of the dust cup assembly are both positioned on the axial extension line of the upper port of the dust collection pipeline. Its advantage lies in, the utility model discloses with induced air mouth and air intake setting on the axial extension line of port on the dust absorption pipeline, make negative pressure device can directly produce suction to air intake and dust absorption pipeline, suction decay is less strong, suction efficiency is higher, clean effect is better.

Description

Vacuum cleaner

Technical Field

The utility model relates to a cleaning device field especially relates to a vacuum cleaner.

Background

The common dust collector in the current market generally comprises a motor, a machine shell, a dust collection box, a filter, a suction head and the like, and if the common dust collector has a water filtering function, the common dust collector also comprises a water cup, and the common dust collector is large in overall weight and heavy in size after the components are integrated. In addition, most dust collectors need an external power supply when working, and the power cord is exposed outside, which also affects the beauty and the use convenience. Therefore, the handheld dust collector enters the market and is widely favored. The hand-held cleaner has a low suction power and a poor cleaning effect due to a structural problem, wherein wind attenuation due to the structure is an important reason.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a vacuum cleaner, which shortens the air flow path and improves the suction power by setting the positions of a negative pressure device and a dust suction pipeline.

The purpose of the utility model is realized by adopting the following technical scheme:

a vacuum cleaner is provided, which comprises a vacuum chamber,

a dust collection pipeline;

the dust cup assembly is arranged above the dust absorption pipeline, and an air inlet of the dust cup assembly is communicated with an upper port of the dust absorption pipeline;

the negative pressure device is arranged above the dust cup assembly, and an air induction port of the negative pressure device is communicated with the upper end of the dust cup assembly; and the air inlet of the negative pressure device and the air inlet of the dust cup assembly are both positioned on the axial extension line of the upper port of the dust collection pipeline.

Preferably, the dust cup assembly further comprises an arc-shaped air deflector arranged at the top end of the dust cup assembly, the arc-shaped air deflector protrudes towards the direction of the negative pressure device, an air hole is formed in the arc-shaped air deflector, and the air hole is communicated with an air induction port of the negative pressure device.

Preferably, an air inducing pipe is connected to an air inducing port of the negative pressure device, and the air inducing pipe is communicated with the air hole.

Preferably, the diameter of the air guiding pipe is larger than or equal to that of the air hole, the air hole is completely covered, a sealing groove matched with the air guiding pipe is formed in one surface, facing the air guiding pipe, of the arc-shaped air deflector, and the sealing groove is arranged around the air hole.

Preferably, the arc-shaped air deflector is obliquely arranged, a vertical distance difference is formed between the top and the bottom, and the included angle degree is 10-20 degrees.

Preferably, the vacuum cleaner further comprises a machine body assembly, the machine body assembly comprises a machine body shell and an inner shell, the inner shell is located in the machine body shell and fixedly connected with the machine body shell, the inner shell is used for installing a negative pressure device, and the dust cup assembly and the dust suction pipeline are located in the machine body shell.

Preferably, the negative pressure device comprises a fan motor, the vacuum cleaner further comprises a motor cover, the motor cover is tightly attached to the fan motor, and the motor cover is fixedly connected with the inner shell.

Preferably, the motor cover includes a fixing cover for fixing the fan motor and a flow guide cover disposed above the fixing cover, the flow guide cover being located at a rear side of the fan motor for guiding an air flow passing through the fan.

Preferably, the drainage cover is of a bundle opening structure, and the inner diameter of the upper end of the drainage cover is smaller than that of the lower end of the drainage cover; the outer wall of the drainage cover is provided with a fixing block, and the drainage cover is fixedly connected with the inner shell through the fixing block.

Preferably, the outer wall of the fixed cover is provided with a plurality of convex columns which are tightly attached to the inner wall of the inner shell.

Preferably, the inner casing comprises a first subsection and a second subsection, the sections of the first subsection and the second subsection are both semicircular, the first subsection and the second subsection are combined into a complete cylinder shape, and the first subsection and the second subsection are fixedly connected through screws and fix the fan motor and the motor cover in the middle.

Preferably, the cleaning head assembly is provided with a dust suction port, a lower port of the dust suction pipeline is communicated with the dust suction port, and the dust suction pipeline penetrates through the cleaning head assembly and then extends into the machine body shell.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model connects the air inlet of the dust cup component with the dust absorption pipeline, and after the air flow enters the dust cup component, the air flow passes through the negative pressure device; the air inlet of the negative pressure device and the air inlet of the dust cup assembly are arranged on the axial extension line of the upper port of the dust absorption pipeline, so that the negative pressure device can directly generate suction to the upper ports of the air inlet and the dust absorption pipeline, the suction attenuation is weak, the suction efficiency is higher, and the cleaning effect is better.

Drawings

Fig. 1 is a schematic structural view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the body assembly and dirt cup assembly of the vacuum cleaner shown in FIG. 1;

fig. 3 is an exploded view of the inner housing and the vacuum unit of the vacuum cleaner shown in fig. 1.

In the figure: 1. a cleaning head assembly; 11. a dust collection pipeline; 2. a body assembly; 21. a fan motor; 22. an arc-shaped air deflector; 221. a sealing groove; 222. a slot; 223. a concave surface; 23. air holes; 24. an inner shell; 241. a circular hole; 242. a plug-in; 243. chamfering; 244. mounting a screw; 245. a first section; 246. a second subsection; 247. fixing a column; 25. a battery pack; 26. a motor cover; 261. an induced draft pipe; 262. a fixed cover; 263. a drainage cover; 264. a convex column; 265. a fixed block; 27. a placement chamber; 271. an opening; 272. a side wall; 3. a dirt cup assembly; 31. an air inlet; 32. a filter; 4. a handle assembly; 5. a connecting assembly; 51. a first steering member; 52. a second steering member; 53. a sleeve; 531. a bevel; 532. a partition plate; 54. a seal ring; 541. an inner extension portion; 542. a vertical portion; 543. an extension portion; 544. an annular protrusion.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1 to 3, the vacuum cleaner with a direct flow duct according to the embodiment of the present invention will be clarified in the following description, wherein the air hole 23 is disposed on the central extension line of the air inlet 31, so that the negative pressure device can directly generate suction force to the air inlet 31, the suction power is larger, and the cleaning effect is better.

As shown in fig. 1 to 3, the vacuum cleaner of the present embodiment includes a suction pipe;

Communicating an air inlet of the dust cup assembly with the dust absorption pipeline, and enabling the airflow to pass through a negative pressure device after entering the dust cup assembly; the air inlet of the negative pressure device and the air inlet of the dust cup assembly are arranged on the axial extension line of the upper port of the dust absorption pipeline, so that the negative pressure device can directly generate suction to the upper ports of the air inlet and the dust absorption pipeline, the suction attenuation is weak, the suction efficiency is higher, and the cleaning effect is better.

More specifically, the air inlet 31 of the dirt cup assembly 3 is associated with the attachment structure of the cleaning head assembly 1, and the dirt cup assembly 3 is mounted flush on the body assembly 2 and needs to be connected to the cleaning head assembly 1 through the body assembly 2. More specifically, a connecting assembly 5 is arranged between the machine body assembly 2 and the cleaning head assembly 1, the connecting assembly 5 comprises a steering assembly sleeved on the dust suction pipeline 11, the steering assembly comprises a first steering piece 51 and a second steering piece 52, the first steering piece 51 is connected with the cleaning head assembly 1, the second steering piece 52 is connected with the machine body assembly 2, in order to realize the sealing connection with the dust suction pipeline 11, a sleeve 53 is arranged in the second steering piece 52, the sleeve 53 is a hard pipe, the tail end of the dust suction pipeline 11 is sleeved on the sleeve 53, the pipe diameter of the sleeve 53 is larger than that of the dust suction pipeline 11, the tail end of the inner wall of the sleeve 53 is an inclined plane 531 inclined outwards, and the inclined plane 531 is in smooth transition with the inner wall; a partition 532 is arranged between the sleeve 53 and the outer wall of the second steering component 52, the top surface of the tail end of the dust suction pipeline 11 is abutted against the partition 532, preferably, a sealant can be coated between the sleeve 53 and the dust suction pipeline 11 to further enhance the sealing property, and at this time, the linear sleeve 53 is only required to be in sealing communication with the machine body component 2 and the dust cup component 3.

As shown in fig. 2, since the air inlet 31 of the dust cup assembly 3 is concentrically arranged with the sleeve 53, the air hole 23 of the arc-shaped air deflector 22 is also equivalently arranged on the central extension line of the sleeve 53, and a direct-current air duct is adopted, so that the whole air flow path is shortened, the wind attenuation is reduced, the power of the fan motor 21 is fully utilized, and the dust collection efficiency is improved.

The dust cup assembly 3 is located in the machine body assembly 2 and at the lower part of the machine body shell, therefore, the airflow entering the sleeve 53 can directly enter the dust cup assembly 3 for gas-dust separation, in order to ensure the sealing in this process, the present embodiment performs a sealing process on the air inlet 31 at the bottom of the dust cup assembly 3 and the machine body assembly 2, and more specifically, a sealing ring 54 is disposed between the sleeve 53 and the air inlet 31, the sealing ring 54 is sleeved on the sleeve 53 and includes an inner extending portion 541 covering the top end of the sleeve 53, a vertical portion 542 sleeved on the outer wall of the sleeve 53, and an outer extending portion 543 protruding outward from the outer side of the vertical portion 542, the outer extending portion 543 abuts against the inner wall at the top end of the inserting groove, the upper surface of the inner extending portion 541 is higher than the upper surface of the air inlet 31, when the dirt cup assembly 3 is aligned with the sealing ring 54, the upper surface of the inward extension 541 is squeezed, and the sealing ring 54 is deformed appropriately, enhancing the sealing of the dirt cup assembly 3 with the sealing ring 54; preferably, the upper surface of the inward extending portion 541 is provided with two concentrically arranged annular protrusions 544, further enhancing the sealing property. Meanwhile, the inner diameter of the inner extension 541 is consistent with the inner diameter of the sleeve 53, so that the air flow is not interfered in the flowing process.

Preferably, in order to ensure that the suction opening of the negative pressure device is collinear with the central line of the air inlet 31, the housing assembly 2 of this embodiment further includes an inner housing 24 and a battery pack 25, the inner housing 24 is located in the housing and used for mounting the blower motor 21 and the battery pack 25, a motor cover 26 of the blower motor 21 is arranged in the inner housing 24, an air guiding pipe 261 is arranged at the lower end of the motor cover 26, a round hole 241 is arranged at the center of a lower bottom plate of the inner housing 24, the air guiding pipe 261 penetrates through the round hole 241, the lower surface of the air guiding pipe 261 is tightly abutted to the arc-shaped air guiding plate 22 and is communicated with the air hole 23, the diameter of the air guiding pipe; one surface of the arc-shaped air deflector, which faces the air guiding pipe 261, is provided with a sealing groove 221 matched with the air guiding pipe 261, and the sealing groove 221 is arranged around the air hole 23. While the air guiding pipe 261 is ensured to be communicated with the air hole 23 of the arc-shaped air guiding pipe in a sealing mode, the center line of the air guiding pipe 261 and the center line of the sleeve 53 are collinear, and the whole air flow path is shortened.

In addition, in order to reduce the noise of the fan motor 21, the motor cover 26 of the present embodiment is fixedly connected to the inner casing 24, and the motor cover 26 may be made of a sound-absorbing material. The motor cover 26 may also function to guide the air flow in addition to the noise reduction function, the motor cover 26 includes a fixing cover 262 for fixing the fan motor 21 and a flow guide cover 263 disposed above the fixing cover 262, the flow guide cover 263 is located at the rear side of the fan motor 21 to guide the air flow passing through the fan; the flow guide cover 263 is of a mouth-closing structure, and the inner diameter of the upper end of the flow guide cover 263 is smaller than that of the lower end of the flow guide cover 263, so that the flow velocity of the air flow exiting from the flow guide cover 263 is larger than that of the air flow entering the flow guide cover, the air flow is accelerated to flow, and the air flow is discharged from an air outlet at the top end of the body shell as.

The fixing structure of the motor cover 26 and the inner casing 24 is shown in fig. 3, the outer wall of the fixing cover 262 is provided with a plurality of protruding columns 264, which are tightly attached to the inner wall of the inner casing 24, preferably, the protruding columns 264 can be made of soft sound-absorbing material, so that the sealing connection between the blower part of the blower motor 21 and the inner casing 24 is ensured, and the noise of the blower motor 21 is reduced. The outer wall of the drainage cover 263 is provided with a fixing block 265, the drainage cover 263 is fixedly connected with the inner shell 24 through the fixing block 265, and the fixing block 265 is arranged on the outer wall of the minimum inner diameter position of the drainage cover 263, so that the installation space in the inner shell 24 can be saved.

The connection structure of the inner shell 24 and the machine body shell is as follows: a pre-positioning structure is arranged between the inner shell 24 and the arc-shaped air deflector 22 on the machine body shell, the pre-positioning structure comprises an insertion slot 222 arranged on one side of the arc-shaped air deflector 22 close to the side wall 272 of the placing cavity 27 and an insertion piece 242 arranged at the bottom end of the inner shell 24, the insertion piece 242 is provided with a barb 243, and the barb 243 abuts against the lower surface of the arc-shaped air deflector 22 after the insertion piece 242 is inserted into the insertion slot 222; then, the arc-shaped air deflector 22 is fixedly connected with the inner shell 24 through screws, a screw mounting position 244 is arranged between the arc-shaped air deflector 22 and the inner shell 24, and the screw mounting position 244 is located on one side, close to the placing groove, of the arc-shaped air deflector 22, and close to the opening 271, a wide mounting space is provided, and operation is facilitated. As shown in fig. 2, the placing chamber 27 of the present embodiment is used for placing the dust cup assembly 3, and in order to easily take the dust cup assembly 3, the length of the opening 271 of the placing chamber 27 is greater than the length of the sidewall 272, and the arc-shaped air deflector 22 is mainly used for guiding the air flow passing through the dust cup assembly 3 into the fan motor 21, and therefore is disposed above the dust cup assembly 3 at the top of the placing chamber 27; the air hole 23 in this embodiment is located at the center of the arc-shaped air deflector 22 and is concentrically arranged with the air suction opening of the fan motor 21.

The inner casing 24 mainly functions to mount the fan motor 21 and the battery pack 25, and for convenience of mounting, preferably, the inner casing 24 includes a first sub-portion 245 and a second sub-portion 246, the first sub-portion 245 and the second sub-portion 246 are both semicircular in cross section and combined into a complete cylinder, the first sub-portion 245 and the second sub-portion 246 are fixedly connected by screws, fixing posts 247 are provided on inner walls of the first sub-portion 245 and the second sub-portion 246 at positions corresponding to the fixing posts 265 of the drain cover 263, and one of the fixing posts 247 penetrates through the fixing post 265 and is fixedly connected with the other fixing post 247 by screws.

To further increase the suction power, the dirt cup assembly 3 of this embodiment further includes a filter 32, the filter 32 being disposed at the inner top of the cup body; the cup body is communicated with the negative pressure device, and the arc-shaped air deflector 22 is arranged between the cup body and the negative pressure device; the negative pressure device is arranged above the arc-shaped air deflector 22, and the arc-shaped air deflector 22 protrudes towards the negative pressure device by a certain radian.

In the present embodiment, the concave surface 223 of the arc-shaped air deflector 22 is utilized to guide the air flow in the cup body to gather and then flow to the fan motor 21 from the air hole 23 in the middle, and one surface of the arc-shaped air deflector 22 facing the fan motor 21 is a convex surface, and the surface facing the cup body is not the concave surface 223.

Preferably, the airflow guiding effect is further improved, the arc-shaped air deflector 22 is obliquely arranged, the vertical distance difference is formed between the top and the bottom, and the included angle degree is 10-20 degrees, and preferably, the included angle degree between the top and the bottom of the arc-shaped air deflector 22 of the embodiment is 15 degrees. According to the position relationship on the drawings, the embodiment is described as that the side of the arc-shaped air deflector 22 close to the side wall 272 of the placing cavity 27 is the bottom, the side close to the opening 271 of the placing cavity 27 is the top, and the bottom is lower than the top, so that the distance difference is formed.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A vacuum cleaner is characterized in that,

a dust collection pipeline;

2. The vacuum cleaner of claim 1, wherein: the dust cup assembly is characterized by further comprising an arc-shaped air deflector arranged at the top end of the dust cup assembly, the arc-shaped air deflector protrudes towards the direction of the negative pressure device, an air hole is formed in the arc-shaped air deflector, and the air hole is communicated with an air induction port of the negative pressure device.

3. The vacuum cleaner of claim 2, wherein: and an air inducing pipe is connected to an air inducing port of the negative pressure device and is communicated with the air hole.

4. A vacuum cleaner according to claim 3, wherein: the pipe diameter of the air guiding pipe is larger than or equal to the diameter of the air hole, the air hole is completely covered, a sealing groove matched with the air guiding pipe is formed in one surface, facing the air guiding pipe, of the arc-shaped air deflector, and the sealing groove is arranged around the air hole.

5. The vacuum cleaner of claim 2, wherein: the arc-shaped air deflector is obliquely arranged, the vertical distance difference is formed between the top and the bottom, and the included angle degree is 10-20 degrees.

6. The vacuum cleaner of claim 1, wherein: the vacuum cleaner further comprises a machine body assembly, the machine body assembly comprises a machine body shell and an inner shell, the inner shell is located in the machine body shell and fixedly connected with the machine body shell, the inner shell is used for installing a negative pressure device, and the dust cup assembly and the dust absorption pipeline are located in the machine body shell.

7. The vacuum cleaner of claim 6, wherein: the negative pressure device comprises a fan motor, the vacuum cleaner further comprises a motor cover, the motor cover is tightly attached to the fan motor, and the motor cover is fixedly connected with the inner shell.

8. The vacuum cleaner of claim 7, wherein: the motor cover comprises a fixing cover for fixing the fan motor and a drainage cover arranged above the fixing cover, and the drainage cover is positioned on the rear side of the fan motor and used for guiding airflow passing through the fan.

9. The vacuum cleaner of claim 8, wherein: the drainage cover is of a mouth-restraining structure, and the inner diameter of the upper end of the drainage cover is smaller than that of the lower end of the drainage cover; the outer wall of the drainage cover is provided with a fixing block, and the drainage cover is fixedly connected with the inner shell through the fixing block.

10. The vacuum cleaner of claim 8, wherein: the outer wall of the fixed cover is provided with a plurality of convex columns which are tightly attached to the inner wall of the inner shell.

11. A vacuum cleaner according to any one of claims 7 to 10, wherein: the inner shell comprises a first subsection and a second subsection, the sections of the first subsection and the second subsection are semicircular, a complete cylinder is formed by combination, the first subsection and the second subsection are fixedly connected through screws, and the fan motor and the motor cover are fixed in the first subsection and the second subsection.

12. A vacuum cleaner according to any one of claims 6 to 10, wherein: the cleaning head assembly is provided with a dust suction port, the lower port of the dust suction pipeline is communicated with the dust suction port, and the dust suction pipeline penetrates through the cleaning head assembly and then extends into the machine body shell.