Vacuum cleaner

Abstract

The invention discloses a vacuum cleaner, the separation structure of the vacuum cleaner comprises a separation shell and a separation assembly arranged in the separation shell, the separation shell is provided with a fan shell, a fan is arranged in the fan shell, an air outlet for exhaust is arranged on the fan shell, a filter is arranged between the separation shell and the fan shell, the separation assembly comprises a separation cylinder arranged in the separation shell, a filter and a baffle for blocking separated dirt and leaving the dirt at the bottom of the separation shell; the separation cylinder is a hollow cylinder, the lower end of the separation cylinder corresponds to the bottom of the separation shell, and the upper end of the separation cylinder corresponds to the filter; the filter is an annular filter, and the filter is sleeved on the separation cylinder; a separation cavity is formed in the separation shell, the bottom of the cavity is used to store separated dirt, and the connection port on the separation shell and the other end of the conveying pipe corresponds to the filter; the baffle is located below the filter and is inclined toward the bottom surface of the separation shell. It has a simple structure and good dust collection effect.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, in particular to a handheld vacuum cleaner. Background Art

[0002] Handheld vacuum cleaners are light in weight, are not restricted by power cords, are easy to use, and are increasingly popular with consumers. The dirty air separation structure and the dust cup of current handheld vacuum cleaners are integrated together, and the two are arranged together in a separation housing; the vacuum cleaner first separates the dirty air through a filter, and then separates the dust through a separation cylinder arranged in the filter.

[0003] After using the existing vacuum cleaner for a period of time, the dirt separated, such as hair and lint, is easily entangled on the filter net, reducing the dust collection effect; and the existing separation cylinder has a complex structure, occupies a large space, is not convenient for installation, is not conducive to the arrangement of other components, and has high cost. Summary of the invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a vacuum cleaner with a simple structure and good dust collection effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The vacuum cleaner comprises a cleaning head, a conveying pipe and a separation structure, wherein the cleaning head is arranged at one end of the conveying pipe, and the separation structure is arranged at the other end of the conveying pipe; the separation structure comprises a separation shell and a separation component arranged in the separation shell, the separation shell is provided with a fan shell, a fan is arranged in the fan shell, an air outlet for exhaust is arranged on the fan shell, and a filter is arranged between the separation shell and the fan shell, and the separation component comprises a separation cylinder, a filter screen and a baffle plate for blocking separated dirt and allowing the dirt to be retained at the bottom of the separation shell; the separation cylinder is a hollow cylinder, the lower end of the separation cylinder corresponds to the bottom of the separation shell, and the upper end of the separation cylinder corresponds to the filter plate; the filter screen is an annular filter screen, and the filter screen is sleeved on the separation cylinder; a separation cavity is formed in the separation shell, the bottom of the cavity is used to store separated dirt, and the connection port on the separation shell that is connected to the other end of the conveying pipe corresponds to the filter screen; the baffle plate is located below the filter screen and is inclined toward the bottom surface of the separation shell.

[0007] Furthermore, a protruding annular plate is provided on the outer edge of the separation cylinder, the filter screen is located above the annular plate, and the baffle is located below the annular plate.

[0008] The blocking piece comprises a mounting sleeve and a group of sheet bodies arranged on the outer edge of the mounting sleeve. The mounting sleeve is arranged on the separation cylinder, and the group of sheet bodies are arranged at intervals.

[0009] The annular plate is provided with a rubber ring which is inclined toward the bottom of the separation shell, and a gap is provided between the outer edge of the rubber ring and the inner wall of the separation shell.

[0010] The annular plate is provided with an annular groove, and the inner edge of the rubber ring is arranged in the annular groove.

[0011] A group of air holes is arranged on the baffle.

[0012] The group of sheets is a group of arc-shaped sheets arranged along the circumferential direction.

[0013] The group of sheets are spiral sheets arranged along the circumferential direction.

[0014] The rubber ring is a ring-shaped inclined plate structure.

[0015] A group of air holes are arranged at the edge of the sheet body.

[0016] There is a gap between adjacent sheets in the group of sheets along the axial direction of the separation cylinder.

[0017] A cover body is provided at the upper end of the separation cylinder, and a portion of the cover body is provided with an extension portion toward the bottom of the separation shell, the extension portion is located between the filter screen and the inner wall of the separation shell, the extension portion is arranged corresponding to the connecting port of the separation shell, and an oblique groove opening is provided on the outer edge of the extension portion for forming a rotating airflow between the filter screen and the inner wall of the separation shell.

[0018] An annular groove is arranged on the end surface of the cover body, and the filter sheet is arranged in the annular groove.

[0019] The separation cylinder is a hollow cylindrical structure, and a group of circumferential air inlets for forming a rotating airflow in the separation cylinder are circumferentially arranged on the outer edge of the separation cylinder portion located in the filter screen.

[0020] There is a gap between the circumferential air inlet on the outer edge of the separation cylinder and the inner wall of the filter screen.

[0021] The circumferential air inlet on the outer edge of the separation cylinder is an arc-shaped air inlet.

[0022] A channel is formed inside the separation cylinder, and the lower part of the channel is a cone cylinder structure.

[0023] A channel is formed inside the separation cylinder, and the channel is larger at the top and smaller at the bottom.

[0024] The lower end of the separation cylinder is arranged corresponding to the bottom of the separation shell, and an opening is arranged on the outer edge of the lower end of the separation cylinder.

[0025] The circumferential air inlet on the outer edge of the separation cylinder is an opening arranged tangentially along the outer edge of the separation cylinder.

[0026] There is a gap between the outer edge of the inner conical cylinder structure of the separation cylinder and the inner wall of the separation cylinder, and an upward convex tip is provided at the bottom end of the conical cylinder structure.

[0027] The bottom of the separation shell is an openable cup bottom cover, and the cup bottom cover is provided with an annular protrusion matched with the lower end of the separation cylinder.

[0028] The openings on the outer edge of the lower end of the separation cylinder are arranged in a group along the circumference of the separation cylinder.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] The vacuum cleaner has a reasonable structural design. A group of circumferential air inlets are arranged on the circumferential direction on the outer edge of the separation cylinder in the filter screen. The dust airflow entering the separation cylinder forms a rotating airflow and separates the dust through the cone cylinder. The separation cylinder is a hollow cylindrical structure as a whole, which has a simple structure, occupies a small space, is easy to arrange and install, and has a low cost. The baffle plate and the rubber ring are used to prevent the dirt from being entangled on the outer edge of the filter screen, and the dirt separated from the filter screen is reduced to prevent the dirt from clogging the filter screen, thereby ensuring that the vacuum cleaner still has a good dust collection effect after being used for a period of time. The vacuum cleaner can achieve five-level separation, thereby improving the dust collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following is a brief description of the contents and symbols in the drawings of this specification:

[0032] Figure 1 It is a schematic diagram of a vacuum cleaner of the present invention.

[0033] Figure 2 Schematic diagram of the separation structure of the present invention Figure 1 .

[0034] Figure 3 Schematic diagram of the separation structure of the present invention Figure 2 .

[0035] Figure 4 For along Figure 3 AA section diagram.

[0036] Figure 5 It is a schematic diagram of the separation dust cup of the present invention.

[0037] Figure 6 This is a schematic diagram of the interior of the dust cup separation device of the present invention.

[0038] Figure 7 It is a schematic diagram of the baffle structure of the present invention.

[0039] Figure 8 This is a schematic diagram of the separation dust cup of the present invention without a baffle.

[0040] Fig. 9 It is a schematic diagram of the structure of the filter screen and the separation cylinder of the present invention.

[0041] Fig.10 Schematic diagram of the separation cylinder of the present invention Figure 1.

[0042] Fig.11 Schematic diagram of the separation cylinder of the present invention Figure 2 .

[0043] Fig.12 Schematic diagram of the separation cylinder of the present invention Figure 3 .

[0044] Fig.13 For along Fig.12 Schematic diagram of the BB cross-section.

[0045] Fig.14 It is a schematic diagram of the interior of the lower end of the separation cylinder of the present invention.

[0046] Fig.15 It is a schematic diagram of the cooperation between the separation cylinder and the baffle of the present invention.

[0047] In the figure:

[0048] 1. Separation structure, 2. Delivery pipe, 3. Fan housing, 301. Air outlet, 4. Separation housing, 401. Dirty air inlet, 5. Cup bottom cover, 501. Annular protrusion, 6. Fan, 7. Filter, 8. Separation cylinder, 801. Annular plate, 802. End plate, 803. Circumferential air inlet, 9. Filter screen, 10. Baffle, 1001. Mounting sleeve, 1002. Sheet body, 1003. Air hole, 11. Rubber ring, 12. Cover body. DETAILED DESCRIPTION

[0049] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0050] like Figures 1 to 15 As shown, the handheld vacuum cleaner comprises a cleaning head, a delivery pipe 2 and a separation structure 1. The cleaning head is arranged at one end of the delivery pipe, and the separation structure 1 is arranged at the other end of the delivery pipe. A handheld handle is provided corresponding to the separation structure.

[0051] The separation structure 1 includes a separation shell 4 and a separation component arranged in the separation shell. The separation shell is a cylindrical structure. A fan shell 3 is provided on the separation shell. A fan is provided in the fan shell. An air outlet 301 for exhaust is provided on the fan shell. A filter 7 is provided between the separation shell and the fan shell. The filter 7 prevents dust from entering the fan shell, and forms a dust suction negative pressure through air extraction by the fan. The filter 7 is preferably a disc-shaped HEPA.

[0052] The delivery pipe 2 is used to deliver the sucked dirty air to the separation component for separation of dirt and air. The separation structure forms a dust cup, and the separated dirt is stored at the bottom of the dust cup. When the dirt reaches a certain amount, the bottom cover 5 of the dust cup is opened to pour out the dirt.

[0053] The separation assembly includes a separation cylinder 8, a filter screen 9 and a blocking piece 10 arranged in a separation shell 4 for blocking the separated dirt and allowing the dirt to remain at the bottom of the separation shell; a cup bottom cover 5 is provided at the bottom of the separation shell, one side of the cup bottom cover is arranged on one side of the separation shell through a rotating shaft, and the other side of the cup bottom cover is arranged on the other side of the separation shell through a snap structure, so that the cup bottom cover can be opened conveniently to pour out the dirt.

[0054] The separation cylinder 8 is a circular hollow cylinder, the lower end of the separation cylinder corresponds to the bottom of the separation shell, and the upper end of the separation cylinder corresponds to the filter plate; the filter screen is an annular filter screen, and the filter screen 9 is sleeved on the separation cylinder; a separation cavity is formed in the separation shell, and the bottom of the cavity is used to store separated stolen goods, and the connection port on the separation shell that is connected to the other end of the conveying pipe corresponds to the filter screen; the baffle 10 is located below the filter screen and is inclined toward the bottom surface of the separation shell.

[0055] A separation cavity is formed in the separation shell 4, and the bottom is used to store separated dirt, and a dirty air inlet 401 is provided on the side of the separation shell; the separation cylinder is arranged in the separation shell, and the separation cylinder is a hollow cylinder. The lower end of the separation cylinder corresponds to the bottom of the separation shell, the upper end of the separation cylinder corresponds to the filter plate arranged on the separation shell, and the lower end of the separation cylinder corresponds to the cup bottom cover. An opening is provided on the outer edge of the lower end of the separation cylinder, and the separated dust is stored at the bottom of the separation shell through the opening. The openings on the outer edge of the lower end of the separation cylinder are a group arranged along the circumference of the separation cylinder.

[0056] The filter screen 9 is an annular filter screen, which is a metal filter screen. The filter screen is evenly distributed with a group of filter holes, and the aperture of the holes is preferably controlled at 0.3-0.6mm.

[0057] A cover body 12 is provided at the upper end of the separation cylinder 8, and the cover body is sleeved on the upper end of the separation cylinder. The cover body is located in the inner cavity of the separation shell, and the cover body is provided with a portion of an extension toward the bottom of the separation shell. The extension portion is arranged corresponding to the dirty air inlet of the separation shell, and a circumferential arc structure is formed between the extension portion and the inner wall of the separation shell, so as to form a rotating airflow between the filter screen and the inside of the separation shell, thereby separating dirt and dust.

[0058] The extension part is located between the filter screen and the inner wall of the separation shell, and the extension part is arranged corresponding to the connecting port of the separation shell. An oblique groove for forming a rotating airflow between the filter screen and the inner wall of the separation shell is provided on the outer edge of the extension part; an annular groove is provided on the end face of the cover body, and the filter plate is arranged in the annular groove, and the structure is compact.

[0059] A protruding annular plate is provided on the outer edge of the separation cylinder 8, the filter screen is located above the annular plate, and the baffle is located below the annular plate, which is convenient for setting the filter screen.

[0060] The annular plate is provided with a rubber ring 11 inclined toward the bottom of the separation shell, and there is a gap between the outer edge of the rubber ring and the inner wall of the separation shell. Preferably, the rubber ring is an annular inclined plate structure to prevent the dirt from being entangled on the filter net from above; the annular plate is provided with an annular groove, and the inner edge of the rubber ring is arranged in the annular groove.

[0061] The baffle 10 is an inclined piece inclined toward the bottom surface of the separation shell. Preferably, the baffle comprises a mounting sleeve 1001 and a group of sheets 1002 arranged on the outer edge of the mounting sleeve, the mounting sleeve 1001 is sleeved on the separation cylinder, a group of sheets are arranged at intervals, and there is a gap between adjacent sheets in a group of sheets along the axial direction of the separation cylinder.

[0062] A group of sheets is a group of arc-shaped sheets arranged along the circumferential direction; preferably, a group of sheets is a group of spiral sheets arranged along the circumferential direction, and a group of air holes 1003 are provided at the edge of the arc-shaped sheets; there is a gap between the upper and lower opposite ends of adjacent sheets, which is convenient for rotating the separated stolen goods to the bottom of the separation shell.

[0063] The dirty airflow sucked into the separation component of the vacuum cleaner rotates in the separation shell to separate the dirty matter to the bottom of the dust cup, and the baffle is used to prevent the dirty matter from being entangled on the outer edge of the filter, thereby reducing the chance of the separated dirty matter clogging the filter, ensuring that the vacuum cleaner still has a good dust collection effect after being used for a period of time; the structure is simple and the manufacturing cost is low.

[0064] The lower end of the separation cylinder corresponds to the bottom of the separation shell, the upper end of the separation cylinder corresponds to the filter plate 7 arranged on the separation shell, the filter screen corresponds to the dirty air inlet, the separation cylinder is a hollow cylindrical structure, and a group of circumferential air inlets 803 for forming a rotating airflow in the separation cylinder are circumferentially arranged on the outer edge of the separation cylinder part located in the filter screen.

[0065] There is a gap between the circumferential air inlet on the outer edge of the separation cylinder 4 and the inner wall of the filter screen. The circumferential air inlet on the outer edge of the separation cylinder is an opening arranged tangentially along the outer edge of the separation cylinder; further, the circumferential air inlet opening is an arc-shaped air inlet, which can improve the cyclone separation effect.

[0066] A channel is formed inside the separation cylinder 8, and the lower part of the channel is a conical structure; a channel is formed inside the separation cylinder, and the channel is larger at the top and smaller at the bottom; there is a gap between the outer edge of the conical structure inside the separation cylinder and the inner wall of the separation cylinder, and an upward convex tip is provided at the bottom end of the conical structure to improve the separation effect.

[0067] A protruding annular plate 801 is provided on the outer edge of the separation cylinder 8, and the lower end of the filter screen is arranged on the annular plate; an annular end plate 802 is provided on the upper end of the separation cylinder, and the upper end of the filter screen is sleeved on the outer edge of the annular end plate, and the upper end of the filter screen is limitedly supported by the annular end.

[0068] The lower end of the separation cylinder 8 is arranged corresponding to the bottom of the separation shell 4, and an opening is arranged on the outer edge of the lower end of the separation cylinder, and the separated dust is stored in the bottom of the separation shell through the opening; or no opening is arranged on the outer edge of the lower end of the separation cylinder, and the separated dust is stored in the bottom of the separation cylinder; the bottom of the separation shell is an openable cup bottom cover, and the cup bottom cover is provided with an annular protrusion 501 matching the lower end of the separation cylinder, which has reliable positioning and can seal the end of the separation cylinder, and the separated dust is stored in the lower end of the separation cylinder. After the cup bottom cover is opened, the large dirt between the lower end of the separation cylinder and the separation shell can be poured out, and the dust at the lower end of the separation cylinder can also be poured out, and the separation effect is good.

[0069] A group of circumferential air inlets are provided on the circumferential edge of the separation cylinder located in the filter screen. The dust airflow entering the separation cylinder forms a rotating airflow and separates the dust through the cone cylinder. The separation cylinder is a hollow cylindrical structure as a whole, with a simple structure, small space occupation, easy layout and installation, and low cost.

[0070] The vacuum cleaner of the present invention forms five-stage separation, thereby improving the dust collection effect; the first stage is to form a cyclonic airflow between the dirty air inlet and the inner wall of the separation shell for separation; the second stage separation stores hair and large stolen goods to the bottom of the separation shell through the baffle; the third stage is to separate by filtering through the filter; the fourth stage is to separate the dust entering the separation cylinder by forming a cyclone in the separation cylinder; the fifth stage separation is to purify through the filter plate at the upper end of the separation cylinder.

[0071] Compared with the traditional three-stage separation, it greatly improves the dust collection and purification effects; and it has a simple structure, is easy to arrange and install, and has low cost.

[0072] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0073] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vacuum cleaner, comprising a cleaning head, a delivery pipe and a separation structure, wherein the cleaning head is arranged at one end of the delivery pipe, and the separation structure is arranged at the other end of the delivery pipe; the separation structure comprises a separation shell and a separation assembly arranged in the separation shell, a fan shell is arranged on the separation shell, a fan is arranged in the fan shell, an air outlet for exhaust is arranged on the fan shell, and a filter is arranged between the separation shell and the fan shell, characterized in that: The separation assembly comprises a separation cylinder, a filter screen and a baffle plate for blocking separated dirt and leaving the dirt at the bottom of the separation shell; the separation cylinder is a hollow cylinder, the lower end of the separation cylinder corresponds to the bottom of the separation shell, and the upper end of the separation cylinder corresponds to the filter plate; the filter screen is an annular filter screen, and the filter screen is sleeved on the separation cylinder; a separation cavity is formed in the separation shell, the bottom of the cavity is used to store the separated dirt, and the connection port on the separation shell that is connected to the other end of the delivery pipe corresponds to the filter screen; the baffle plate is located below the filter screen and is inclined toward the bottom surface of the separation shell; A protruding annular plate is provided on the outer edge of the separation cylinder, the filter screen is located above the annular plate, and the baffle is located below the annular plate; a rubber ring is provided on the annular plate and is inclined toward the bottom of the separation shell, and there is a gap between the outer edge of the rubber ring and the inner wall of the separation shell; an annular groove is provided on the annular plate, and the inner edge of the rubber ring is arranged in the annular groove; the rubber ring is an annular inclined plate structure; The baffle comprises a mounting sleeve and a group of sheets arranged on the outer edge of the mounting sleeve, the mounting sleeve is arranged on the separation cylinder, and a group of sheets are arranged at intervals; the group of sheets is a group of arc sheets arranged along the circumferential direction; a group of air holes are arranged at the edge of the sheet; the group of sheets is a group of spiral sheets arranged along the circumferential direction.

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