CN214595707U - Dust collector and dust collector air duct structure - Google Patents

Abstract

The utility model discloses a dust catcher and dust catcher wind channel structure. The air duct structure of the dust collector comprises a main machine of the dust collector and a dust cup assembly, wherein an air inlet guide device is arranged between an air suction inlet of a motor of the dust collector and a lower bracket and comprises a sealing rubber gasket and a guide bracket; the sealing rubber gasket comprises a sealing body and an air inlet through hole; the diversion bracket comprises a circular diversion body and a diversion through hole which is arranged in the middle of the diversion body and is matched with the air inlet through hole, and the lower side surface of the diversion body is a diversion inclined plane so that the diversion through hole is gradually enlarged from top to bottom along the diversion inclined plane; the lower support is provided with an air inlet groove matched with the lower tail end of the diversion through hole, the lower support compresses the sealing rubber mat on the lower side surface of the dust collector host through the diversion support, and an air suction inlet of the dust collector motor is communicated with the air inlet groove of the lower support through the air inlet through hole and the diversion through hole in sequence to form an air inlet channel. The utility model has the advantages of large suction force, good dust absorption effect, low dust absorption noise and the like.

Description

Dust collector and dust collector air duct structure

Technical Field

The utility model belongs to the technical field of clean electrical apparatus technique and specifically relates to a dust catcher and dust catcher wind channel structure is related to.

Background

This section merely provides background information related to the present application so as to enable those skilled in the art to more fully and accurately understand the present application, which is not necessarily prior art.

The noise of the dust collector is always a problem which is difficult to solve in the industry and is one of the pain points which are very concerned by consumers. The dust collector filters and separates dust and air in the dust cup through the inside of the dust collector and then discharges the air out of the dust collector through the air outlet. The main sources of noise in a vacuum cleaner are classified into two types, one is noise generated due to vibration of a motor, and the other is flow noise due to a rapid air flow generated when air is rapidly sucked and discharged.

In a conventional noise reduction solution, on the one hand, a multilayer motor cover is used for sound insulation. On the other hand, the tortuous wind channel increases the tortuous and reflection of sound wave and uses sound absorbing material to absorb sound wave, etc., though certain noise reduction effect has been played, but manufacturing cost is high, and the process is complicated, attracts material etc. moreover to belong to hindering nature sound absorption principle, possesses certain sound absorption effect to the high frequency channel noise, but to the low frequency channel noise, noise reduction effect is not obvious. In addition, because the airflow is blocked in the inner space of the motor dust collector and cannot be quickly dispersed and smoothly discharged out of the dust collector, the air inlet is not smooth easily, the suction force of the dust collector is influenced, the temperature of the inner machine body of the dust collector is also easily increased, and the dust collector is unstable in work and even the service life of the dust collector is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a dust catcher and dust catcher wind channel structure makes the air current smooth and easy that flow in the dust catcher through setting up air inlet guiding device to be favorable to improving the dust absorption ability of dust catcher.

The utility model provides a dust collector air duct structure, which comprises a dust collector main machine and a dust cup component, wherein the dust collector main machine comprises a dust collector motor with an air suction inlet and an air outlet and a lower bracket which is detachably, hermetically and connected with the dust cup component; an air inlet flow guide device is arranged between the air suction inlet and the lower bracket and comprises a sealing rubber cushion and a flow guide bracket; the sealing rubber gasket comprises a sealing body and an air inlet through hole which is arranged on the sealing body and matched with the air suction opening; the diversion bracket comprises a circular diversion body and a diversion through hole which is arranged in the middle of the diversion body and is matched with the air inlet through hole, and the lower side surface of the diversion body is a diversion inclined plane so that the diversion through hole is gradually enlarged from top to bottom along the diversion inclined plane; the lower support is provided with an air inlet groove matched with the lower tail end of the diversion through hole, the lower support compresses the sealing rubber mat on the lower side surface of the dust collector host through the diversion support, and an air suction inlet of the dust collector motor is communicated with the air inlet groove of the lower support through the air inlet through hole and the diversion through hole in sequence to form an air inlet channel.

In a preferred embodiment, the guide body is provided with a first support ring and a second support ring which are arranged at the inner ring and the outer ring in a protruding manner, the first support ring is supported at the junction of the air inlet through hole and the sealing body, and the second support ring is supported at the lower side surface of the sealing body.

In a preferred embodiment, the guide bracket is fixed on the lower bracket; the bottom face of water conservancy diversion body is equipped with the spacing groove, encircles the protruding spacing ring that is equipped with of air inlet groove on the lower carriage, and the spacing ring is inserted and is established in the spacing groove.

In a preferred embodiment, the cleaner main body further comprises an air guide casing consisting of a lower casing and an upper casing fixed at the top end of the lower casing; the lower housing is provided with a fan accommodating groove with a downward opening, and an air outlet corresponding to the air suction opening is arranged on the lower housing.

In a preferred embodiment, the lower side surface of the upper casing is provided with a machine body groove, and the upper casing is provided with an air outlet flow guide device.

In a preferred embodiment, the air outlet guide device includes: a clearance gap is arranged at the position of the machine body groove corresponding to the air outlet and is communicated with the air outlet; two sides of the clearance gap are respectively provided with an air deflector.

In a preferred embodiment, a wind deflector is arranged above the clearance gap.

In a preferred embodiment, the dirt cup assembly includes a dirt cup, a filter disposed within the dirt cup, and a connecting tube, the dirt cup having a mounting hole in a bottom portion thereof and a mounting tube extending from the mounting hole toward an interior of the dirt cup, an upper end of the connecting tube being in mounting connection with the mounting tube via a removable mounting structure.

In a preferred embodiment, the connecting tube includes an upper tube body coupled to the mounting cylinder and a lower tube body coupled to a lower end of the upper tube body, and the detachable coupling structure includes: the second fixing groove is arranged between the inner side wall of the top of the mounting cylinder and the cylinder opening of the mounting cylinder, and the second buckling position is arranged in the second fixing groove; the first elastic buckle and the second elastic buckle are arranged at the top of the upper pipe body; when the upper pipe body is installed in the installation cylinder, the second elastic buckle is buckled in the second fixing groove, the first elastic buckle is buckled and connected with the second buckle position, and the outer side wall of the upper pipe body is attached to the inner side wall of the installation cylinder; and, be equipped with direction lateral wall and sealed lateral wall downwards in proper order at the inside wall of installation section of thick bamboo from the second fixed slot, direction lateral wall from sealed lateral wall to the second fixed slot extension in-process is set up as big-end-up's toper gradually towards the center convergence of installation section of thick bamboo.

The utility model also discloses a dust collector, which comprises the dust collector air duct structure and the shell; the main machine of the dust collector is positioned in the shell, and the dust cup component is exposed out of the shell.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a dust collector air channel structure, through increasing the air inlet guiding device, the guiding support separates the inlet scoop of dust collector motor and the inlet scoop of lower carriage, has extended the length of inlet channel between inlet scoop and the inlet scoop of dust collector motor objectively, make the air current length between inlet scoop of dust collector motor and dirt cup subassembly longer, hold the space of air current bigger, make admit air more smooth and easy thus increase the intake; meanwhile, the diversion support is provided with a diversion inclined plane, so that the diversion through holes are gradually enlarged from top to bottom along the diversion inclined plane, the diversion through holes with the sizes larger than that of the air suction openings are adopted, the air suction area of the air suction opening of the dust collector motor to the dust cup assembly is increased, the air inlet amount is increased, the air flow is guided to the air suction opening through the diversion inclined plane, and the air inlet can be further smooth. Therefore, the utility model discloses an increase air inlet guiding device and can promote the smooth and easy degree that the interior air current of inlet channel flows, the intake of increase dust catcher motor is favorable to improving the suction of dust catcher and improving the dust absorption ability of dust catcher.

Furthermore, the utility model discloses an increase air inlet guiding device, not only can utilize self elasticity of sealed cushion to reduce the vibration that the dust catcher motor produced in order to reduce the noise that the dust catcher in the use produced, sealed cushion has also ensured simultaneously that the inlet channel sealing performance between the inlet scoop of lower carriage to the inlet scoop of dust catcher motor is reliable to the suction that has promoted the dust catcher makes the dust removal effect of dust catcher more excellent. Therefore, the dust collector with the air duct structure of the dust collector has the main advantages of large suction force, good dust collection effect and low dust collection noise.

Drawings

Fig. 1 is a perspective view of a vacuum cleaner.

Fig. 2 is a schematic view of the assembly structure of the main body and the casing of the vacuum cleaner.

Fig. 3 is an exploded view of the main body of the cleaner.

Fig. 4A and 4B are schematic structural views of the upper and lower sides of the lower casing, respectively.

Fig. 5A and 5B are schematic structural views of the upper and lower sides of the upper casing, respectively.

Fig. 6 is a schematic view of a half-section structure of the sealing rubber gasket.

Fig. 7A and 7B are schematic perspective and internal structures of the guide bracket, respectively.

Fig. 8 is a structural schematic view of the lower bracket.

Fig. 9 is a schematic view of the internal structure of the cleaner.

Fig. 10 is an enlarged view of a portion a of fig. 9.

Fig. 11 is an enlarged view of a portion B of fig. 9.

Figure 12 is a schematic view of a half-section of a dirt cup.

Fig. 13 is a schematic view of the structure of the connection pipe.

Detailed Description

To further clarify the technical solutions and effects adopted by the present application to achieve the intended purpose, the following detailed description is given with reference to the accompanying drawings and preferred embodiments according to the present application. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 3, the present invention discloses a vacuum cleaner, which comprises a housing 100 having an exhaust grill 101, a main vacuum cleaner 200 disposed in the housing 100, and a dust cup assembly 300 exposed from the housing 100 and detachably and hermetically connected to the main vacuum cleaner 200.

The utility model also discloses a dust catcher wind channel structure, including dust catcher host computer 200 and dirt cup subassembly 300.

As further illustrated in connection with fig. 2-10. The vacuum cleaner main body 200 includes a vacuum cleaner motor 3 having an air suction opening 322 and an air discharge opening (specifically, the vacuum cleaner motor 3 includes a motor 31 and a fan 32 connected to the lower end of the motor 31, the air suction opening 322 is disposed on the lower side surface of the fan 32, and the air discharge opening is disposed on the upper side surface of the fan 32), a lower bracket 6 detachably connected to the dust cup assembly 300 in a sealing manner, and an air inlet guide device disposed between the air suction opening 322 and the lower bracket 6, and the air inlet guide device guides the air flow flowing from the dust cup assembly 300 to the air suction opening 322 of the vacuum cleaner main body 200 to make the air flow more smooth.

Wherein, the air intake guiding device comprises a sealing rubber mat 4 and a guiding bracket 5; the sealing rubber gasket 4 comprises a sealing body and an air inlet through hole 40 which is arranged on the sealing body and is matched with the air suction opening 322; the diversion bracket 5 comprises a circular diversion body 51 and a diversion through hole 501 which is arranged in the middle of the diversion body 51 and is matched with the air inlet through hole 40, and the lower side surface of the diversion body 51 is a diversion inclined surface 515, so that the diversion through hole 501 gradually enlarges from top to bottom along the diversion inclined surface 515; the lower bracket 6 is provided with an air inlet groove 60 matched with the lower tail end of the diversion through hole 501, the diversion bracket 5 is supported by the lower bracket 6 so that the diversion body 51 presses the sealing rubber gasket 4 on the lower side surface of the dust collector main body 200, and the air suction inlet 322 of the dust collector motor 3 is communicated with the air inlet groove 60 of the lower bracket 6 through the air inlet through hole 40 and the diversion through hole 501 in sequence to form an air inlet channel.

The utility model discloses a dust collector air channel structure, through increasing the air inlet guiding device, the inlet scoop 322 of dust collector motor 3 is separated with the inlet chute 60 of lower carriage 6 by the water conservancy diversion support 5, has extended the length of inlet channel between inlet chute 60 of lower carriage 6 to the inlet scoop 322 of dust collector motor 3 objectively, make the air current length between inlet scoop 322 of dust collector motor 3 and dirt cup subassembly 300 longer, the space of holding the air current bigger, make admit air more smooth and easy thus increase the intake; meanwhile, the diversion bracket 5 is provided with the diversion inclined plane 515 so that the diversion through hole 501 gradually becomes larger along the top-down space of the diversion inclined plane 515, the diversion through hole 501 with a size larger than that of the air suction opening 322 is adopted, the air suction area of the air suction opening 322 of the dust collector motor 3 to the dust cup assembly 300 is increased, the air inlet amount is increased, and the air flow is guided to the air suction opening 322 through the diversion inclined plane 515, so that the air inlet can be further smooth. Therefore, the utility model discloses an increase air inlet guiding device and can promote the smooth and easy degree that the interior air current of inlet channel flows, increase dust catcher motor 3's intake is favorable to improving the suction of dust catcher and improving the dust absorption ability of dust catcher.

Furthermore, the utility model discloses an increase air inlet guiding device, not only can utilize self elasticity of sealed cushion 4 to reduce the vibration that dust catcher motor 3 produced in order to reduce the noise that the dust catcher in the use produced, sealed cushion 4 has also ensured simultaneously that the inlet chute 60 of lower carriage 6 is reliable to the inlet channel sealing performance between inlet scoop 322 of dust catcher motor 3 to the suction that has promoted the dust catcher makes the dust removal effect of dust catcher more excellent. Therefore, the dust collector with the air duct structure of the dust collector has the main advantages of large suction force, good dust collection effect and low dust collection noise.

As shown in fig. 6, fig. 7A, fig. 7B and fig. 10, the baffle body 51 has a first support ring 511 protruding upward at the inner circular ring; the air inlet through hole 40 of the sealing rubber gasket 4 is arranged by extending downwards from the sealing body, and an inverted L-shaped sealing end part 42 is formed at the junction of the air inlet through hole 40 and the sealing body; the first support ring 511 is supported on the sealing end 42 of the sealing rubber cushion 4, so that the air inlet through hole 40 is connected with the air suction opening 322 of the dust collector motor 3 in a sealing manner, the air inlet channel is sealed at the first stage through the sealing rubber cushion 4, and the flow guide through hole 501 is communicated with the air suction opening 322 of the dust collector motor 3 through the air inlet through hole 40. The outer ring of the diversion body 51 is provided with a second support ring 512 protruding upwards, the second support ring 512 is supported on the lower side surface of the sealing body, so that the sealing body is pressed on the lower side surface of the fan 32, and a second-stage sealing is formed on the air inlet channel through the sealing rubber mat 4. The peripheral side edge of the sealing body of the sealing rubber gasket 4 extends upwards to form a sealing flange 41, and the sealing flange 41 is pressed between the side wall of the lower housing 2 and the fan 32 by adopting a side surface to seal, so that a third-stage seal is formed on the air inlet channel through the sealing rubber gasket 4. Therefore, the three-stage sealing is adopted for the air inlet channel to ensure the sealing reliability, so that the sucked air flow cannot leak, the smooth flow of the air flow can be ensured, and the dust collector is ensured to have stable and reliable suction force to ensure the dust collection effect.

See, in particular, fig. 7B and 8. A fixing part 52 is arranged on the outer side surface of the flow guide body 51, and a fixing hole 521 is arranged on the fixing part 52; the lower bracket 6 is provided with a bracket fixing post 61, and a screw passes through the fixing hole 521 to be screwed on the bracket fixing post 61 so as to fix the guide bracket 5 on the lower bracket 6, so that the guide bracket 5 is prevented from moving, and the guide bracket 5 is ensured to stably and reliably support the sealing rubber pad 4. In order to further improve the structural firmness of the guide support 5 fixed on the lower support 6, the bottom end surface of the guide body 51 is provided with a limiting groove 513, a limiting ring 68 is convexly arranged on the lower support 6 around the air inlet groove 60, and the limiting ring 68 is inserted into the limiting groove 513 to realize clamping limiting, so that the guide support 5 cannot move relative to the lower support 6.

As shown in particular in fig. 8. Two grooves with different sizes are symmetrically distributed on the side surface of the lower bracket 6 as lower limiting grooves 66, so that the main machine of the dust collector can be conveniently positioned when being arranged in the shell of the dust collector. At the side of lower carriage 6, the equipartition has 3 dirt cup fixed blocks 65 of the same size, and the dirt cup subassembly 300 of being convenient for passes through dirt cup fixed block 65 detachable installation to the below at lower carriage 6, makes the suction that dust catcher motor 3 produced filter the inspiratory air current through dirt cup subassembly 300 earlier and realizes the dirt air separation in order to realize that the dust absorption is clean.

As shown in fig. 2, 3, 4A, 4B, 5A and 5B, the cleaner main body 200 further includes an air guide casing composed of a lower casing 2 and an upper casing 1 fixed on the top end of the lower casing 2, the air guide casing is disposed above the cleaner motor 3, and the lower bracket 6 is disposed below the cleaner motor 3, and is fixedly connected with the air guide casing through the lower bracket 6 to assemble the cleaner air duct into a whole.

The lower housing 2 has a fan-accommodating groove with a downward opening, a circular groove 25 is arranged in the middle of the fan-accommodating groove, and an air outlet 29 corresponding to the air suction opening 322 of the dust collector motor 3 is arranged on the lower housing 2, and the air outlet is fan-shaped and is arranged right opposite to the exhaust grid 101 of the casing 100. The circumferential direction distributes has the backup pad 27 of a plurality of L shapes in the fan holding tank, and the backup pad 27 has the support terminal surface 271 that the lower arch set up, by each support terminal surface 271 with the fan 32 contact with let dust catcher motor 3 can be more firm fix between air guide casing and lower carriage 6, prevent that dust catcher motor 3 can take place to beat and produce great noise.

The lower side surface of the upper housing 1 is provided with a machine body groove 11 for accommodating the motor 32, and the machine body groove 11 is annular in the center of the upper housing 1, so that the motor 32 part of the dust collector motor 3 can be conveniently placed. Go up housing 1 and lower housing 2 fixed linking to each other, the last end of motor 31 is passed the back from circular slot 25 and is restricted in organism groove 11, and fan 32 holds in the fan holding tank of lower housing 2.

And, an air outlet guide device is provided on the upper casing 1 to improve the smoothness of the air flow from the air outlet 29 to the exhaust grill 101 of the casing 100 to ensure the dust collecting ability of the cleaner motor 3. Particularly, the air-out guiding device includes: a clearance gap 12 is arranged at the position of the machine body groove 11 corresponding to the air outlet 29, and the clearance gap 12 is communicated with the air outlet 29; two sides of the clearance gap 12 are respectively provided with a wind deflector 15, and the wind deflectors 15 are arc-shaped plates, and the airflow discharged from the air outlet 29 is guided to the exhaust grid 101 of the casing 100 through the wind deflectors 15 so as to ensure the smooth exhaust of the dust collector motor 3.

Moreover, air-out guiding device still includes: the wind deflector 16 is arranged above the clearance gap 12, the wind deflector 16 is a flat plate, the air flow discharged from the air outlet 29 can be prevented from flowing upwards, and the air flow discharged from the air outlet 29 can rapidly flow to the exhaust grid 101 of the machine shell 100 through the combined action of the wind deflector 16 and the two wind deflectors 15.

A plurality of upper fixing columns 13 are arranged on the upper housing 1, a plurality of lower fixing columns 28 are correspondingly arranged on the lower housing 2, and screws penetrate through the upper fixing columns 13 and the lower fixing columns 28 to fix the upper housing 1, the lower housing 2 and the motor together. At least 2 fixing rings 23 are arranged on the lower housing 2, transverse fixing columns 63 are respectively arranged on the lower support 6 corresponding to each fixing ring 23, and screws penetrate through the fixing rings 23 to be screwed with the transverse fixing columns 63 so that the lower support 6 is fixedly connected with the lower housing 2. Furthermore, a plurality of inner buckles 22 are arranged on the inner side surface of the lower housing 2, fixing buckles 62 are respectively arranged on the periphery of the lower bracket 6 corresponding to the inner buckles 22 in an upward protruding manner, the lower bracket 6 is buckled and connected with the inner buckles 22 through the fixing buckles 62, and the lower bracket 6 and the lower housing 2 are connected in a fixed manner in an auxiliary manner. Moreover, the lower end of the lower housing 2 is provided with a positioning groove 24, the side wall of the lower bracket 6 is provided with a positioning block 67 protruding upwards, when the positioning block 67 is aligned and inserted into the positioning groove 24 in the process of assembling the lower housing 2 and the lower bracket 6, each fixing ring 23 is aligned with one transverse fixing column 63, and each fixing buckle 62 is aligned with one inner buckle 22, so that the motor assembly is conveniently positioned and assembled.

Again as shown in connection with fig. 2, 3, 5A and 5B. The cleaner main body 200 further comprises a battery assembly 7, wherein the battery assembly 7 specifically comprises an upper mounting bracket 71, a lower mounting bracket 72, a plurality of rechargeable batteries 73 limited between the upper mounting bracket 71 and the lower mounting bracket 72, and a circuit board 74 fixed on the top of the upper mounting bracket 71. The upper side of the upper housing 1 is provided with a battery accommodating groove 14 for accommodating the battery assembly 7, the top end of the machine body groove 11 is provided with a battery fixing post 19, and the battery assembly 7 is fixedly connected through the battery fixing post 19. Wherein, be equipped with baffle 17 respectively in the both sides of taking shelter from empty breach 12, separate gas outlet 29 and battery pack 7 through baffle 17, can let like this from gas outlet 29 exhaust hot-blast (the air current absorbs the heat that its work produced behind dust catcher motor 3 and thus become hot-blast) with battery holding tank 14 keeps apart, avoids hot-blast entering battery holding tank 14 in to influence battery pack 7's working property.

As further illustrated in connection with fig. 11-13. The dirt cup assembly 300 includes a dirt cup 91, a filter 92, a dust blocking sheet 94 and a connecting pipe 93, the filter 92 is disposed in the dirt cup 91; the bottom of the dust cup 91 is provided with a mounting hole and a mounting cylinder 910 extending from the mounting hole to the interior of the dust cup 91, and the dust blocking sheet 94 covers the top of the mounting cylinder 910; the upper end of the connection pipe 93 is fitted into the mounting cylinder 910 using a detachable fitting structure.

A first mounting groove 912 is arranged between the inner side wall of the top of the dust cup 91 and the cup mouth of the dust cup 91, and a first buckling position 911 is arranged at the cup mouth of the dust cup 91. The filter 3 is inserted into the dust cup 91 from the cup mouth of the dust cup 91, and the filter 92 is positioned in the dust cup 91 and limited in the first mounting groove 912; the filter 92 is rotated to enable the buckle part of the upper end of the filter 92 to be clamped into the first buckle position 911, so that the filter 92 is fixed in the first mounting groove 912, and the phenomenon that the filter 92 loosens relative to the dust cup 91 when the dust cup assembly is used, so that the sealing is poor and the dust collection efficiency is reduced is prevented.

The top of the mounting cylinder 910 is provided with two fixing rods 913, and the two fixing rods 913 are symmetrically disposed to fix the dust blocking sheet 94. Generally, the dust blocking plate 94 is fixed on the two fixing rods 913 to block the top of the installation cylinder 910.

The connecting pipe 93 is a pipe structure, and includes an upper pipe 941 connected to the mounting tube 910 and a lower pipe 940 connected to the lower end of the upper pipe 941, and the detachable structure is disposed between the upper pipe 941 and the mounting tube 910. The upper tube 941 is detachably connected to the mounting tube 910.

Specifically, the detachable fitting structure includes: a second mounting 914 is arranged between the inner side wall of the top of the mounting cylinder 910 and the cylinder opening of the mounting cylinder 910, and a second buckling position 915 is arranged in the second mounting 914; a first elastic buckle 942 and a second elastic buckle 943 are arranged at the top of the upper pipe body 941; when the upper pipe body 941 is inserted into the mounting barrel 910 from bottom to top, the second elastic fastener 943 is fastened into the second mounting 914 to limit the upper pipe body 941, and the first elastic fastener 942 is fastened with the second fastener 915 to fix the upper pipe body 941 and the mounting barrel 910, so that the upper pipe body 941 cannot move up and down or transversely rotate relative to the mounting barrel 910, and the reliability of the mounting structure between the connecting pipe 93 and the dust cup 91 is ensured.

The inner side wall of the mounting cylinder 910 is provided with a guide side wall 916 and a sealing side wall 917 in sequence from the second mounting 914 downwards, and the guide side wall 916 is gradually converged (or closed) towards the center of the mounting cylinder 910 in the extending process from the sealing side wall 917 to the second mounting 914, so that the inner diameter of the space surrounded by the sealing side wall 917 is a cone with a large lower part and a small upper part. This configuration is advantageous in that, when the upper pipe 941 is inserted into the installation cylinder 910 from the lower portion to the upper portion, during the upward movement of the first and second snaps 942 and 943 touching the guide sidewall 916 and along the guide sidewall 916, both first snap 942 and second snap 943 are compressed by guide sidewall 916, so that the first and second snap buttons 942 and 943 are elastically deformed toward the central axis of the upper pipe 941, so that the first elastic buckle 942 and the second elastic buckle 943 accumulate the restoring elastic force in the direction away from the central axis of the upper pipe 941, and as first snap 942 and second snap 943 continue to move upward into second mounting 914, the first elastic fastener 942 and the second elastic fastener 943 are respectively fastened with the second fastening position 915 and the second fastening portion 914 under the action of their restoring elastic force, so that the guiding sidewall 916 is provided to improve the reliability of the detachable structure.

When the upper pipe 941 is assembled inside the mounting tube 910, the sealing sidewall 917 is attached to the outer sidewall of the upper pipe 941 to form a sealing connection structure between the upper pipe 941 and the mounting tube 910, so as to prevent the dust collector from leaking air at the connection position between the upper pipe 941 and the mounting tube 910 due to the air sucked into the dust cup 91 from the connecting pipe 93. Preferably, the sealing sidewall 917 is a tapered structure with a larger lower portion and a smaller upper portion, the upper pipe body 941 also corresponds to the pipe body with the larger lower portion and the smaller upper portion, and when the upper pipe body 941 is assembled in the installation cylinder 910, a tapered inclined plane matching sealing structure is formed between the outer sidewall of the upper pipe body 941 and the sealing sidewall 917, so that the sealing effect between the two is better than the sealing performance when the two are matched by a vertical plane.

A positioning hole 919 with a downward opening is formed at the bottom end of the mounting tube 910, a positioning block 944 protruding out of the upper tube 941 is formed at the bottom of the upper tube 941, and when the positioning block 944 is inserted into the positioning hole 919, the first elastic buckle 942 is aligned with the second buckle 915 and is accurately buckled into the second buckle 915. Therefore, the positioning hole 919 is matched with the positioning block 944, so that the upper pipe body 941 can be accurately assembled on the mounting barrel 910, and the reliability of connection between the upper pipe body 941 and the mounting barrel 910 is improved.

A limiting groove 918 is formed between the bottom end of the mounting cylinder 910 and the mounting hole, and a positioning hole 919 is formed in the limiting groove 918; the bottom of the upper pipe 941 is provided with a limiting ring 945, and the positioning block 944 is protruded on the limiting ring 945. When the upper pipe 941 is fitted into the mounting cylinder 910 from the bottom up, the retainer ring 945 enters the retainer groove 918. Through the matching of the limiting groove 918 and the limiting ring 945, in order to prevent the upper pipe body 941 from being excessively inserted into the mounting cylinder 910, so that a detachable assembly structure between the upper pipe body 941 and the mounting cylinder 910 is damaged or cannot be accurately matched, the upper pipe body 941 is further conveniently and accurately assembled on the mounting cylinder 910 so as to improve the connection reliability of the upper pipe body 941 and the mounting cylinder 910; meanwhile, the sealing performance between the upper pipe body 941 and the mounting cylinder 910 can be further improved by the matching of the limiting groove 918 and the limiting ring 945, so that external air is prevented from entering the dust cup 91, and the dust collector is ensured to provide stable and reliable suction force.

Again as shown in fig. 2. The inner side wall of the casing 100 is provided with an installation boss 102 and a limit hole 105, the end surface of the installation boss 102 is provided with a screw hole 103, and the lower end surface of the casing 100 is provided with a limit ring groove 104. A mounting recess is correspondingly provided on the side surface of the upper case 1, and a mounting stud 18 is provided in the mounting recess. The cleaner main body 200 is inserted into the casing 100 from the lower end of the casing 100, so that the installation concave part is matched with the installation boss 102 to ensure that the cleaner main body 200 is accurately installed into the casing 100, at this time, the lower end of the lower bracket 6 is provided with a convex ring 64 which enters into a limit ring groove 104 of the casing 100 to be limited, the outer buckle 21 is buckled into a limit hole 105 of the casing 100, and then a screw penetrates through the installation stud 18 to be screwed with the screw hole 103, so that the installation of the cleaner main body 200 into the casing 100 is completed.

When the cleaner is required to be used, the cleaning assembly 300 is mounted to the cleaner main body 200. Specifically, the first buckling position 911 arranged at the cup opening of the dust cup 91 is buckled and fixed with the dust cup fixing block 65 of the cleaner main body 200, so that the assembly is simple, and the operation and the use are convenient.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A dust collector air duct structure comprises a dust collector main machine and a dust cup assembly, wherein the dust collector main machine comprises a dust collector motor with an air suction opening and an air exhaust opening and a lower support which is detachably, hermetically and connected with the dust cup assembly; the air inlet guide device is arranged between the air suction inlet and the lower support and comprises a sealing rubber mat and a guide support;

the sealing rubber gasket comprises a sealing body and an air inlet through hole which is arranged on the sealing body and matched with the air suction opening;

the diversion bracket comprises a circular diversion body and a diversion through hole which is arranged in the middle of the diversion body and is matched with the air inlet through hole, and the lower side surface of the diversion body is a diversion inclined plane so that the diversion through hole is gradually enlarged from top to bottom along the diversion inclined plane;

the lower support is provided with an air inlet groove matched with the lower tail end of the diversion through hole, the lower support compresses the sealing rubber mat on the lower side surface of the dust collector host through the diversion support, and an air suction inlet of the dust collector motor is communicated with the air inlet groove of the lower support through the air inlet through hole and the diversion through hole in sequence to form an air inlet channel.

2. The air duct structure of vacuum cleaner as claimed in claim 1, wherein the deflector body has a first supporting ring and a second supporting ring protruding upward at the inner ring and the outer ring, respectively, the first supporting ring is supported at the interface of the air inlet through hole and the sealing body, and the second supporting ring is supported at the lower side of the sealing body.

3. The air duct structure of the dust collector as claimed in claim 1, wherein the guide bracket is fixed on the lower bracket; the bottom face of water conservancy diversion body is equipped with the spacing groove, encircles the protruding spacing ring that is equipped with of air inlet groove on the lower carriage, and the spacing ring is inserted and is established in the spacing groove.

4. The air duct structure of the vacuum cleaner as claimed in claim 1, wherein the main unit of the vacuum cleaner further comprises an air guide casing composed of a lower casing and an upper casing fixed to a top end of the lower casing; the lower housing is provided with a fan accommodating groove with a downward opening, and an air outlet corresponding to the air suction opening is arranged on the lower housing.

5. The air duct structure of vacuum cleaner as claimed in claim 4, wherein the lower side of the upper casing is provided with a machine body groove, and the upper casing is provided with an air outlet flow guiding device.

6. The air duct structure of the dust collector as claimed in claim 5, wherein the air outlet flow guiding device comprises: a clearance gap is arranged at the position of the machine body groove corresponding to the air outlet and is communicated with the air outlet; two sides of the clearance gap are respectively provided with an air deflector.

7. The air duct structure of vacuum cleaner as claimed in claim 6, wherein a wind shield is provided above the clearance gap.

8. The air duct structure according to any of claims 1 to 7, wherein the dirt cup assembly includes a dirt cup, a filter provided in the dirt cup, and a connecting pipe, the dirt cup has a mounting hole at a bottom thereof and a mounting cylinder extending from the mounting hole toward an inside of the dirt cup, and an upper end of the connecting pipe is mounted to the mounting cylinder by a detachable mounting structure.

9. The structure of air duct for vacuum cleaner as claimed in claim 8, wherein the connecting pipe includes an upper pipe body assembled with the mounting cylinder and a lower pipe body connected to a lower end of the upper pipe body, and the detachable assembly structure includes: the second fixing groove is arranged between the inner side wall of the top of the mounting cylinder and the cylinder opening of the mounting cylinder, and the second buckling position is arranged in the second fixing groove; the first elastic buckle and the second elastic buckle are arranged at the top of the upper pipe body; when the upper pipe body is installed in the installation cylinder, the second elastic buckle is buckled in the second fixing groove, the first elastic buckle is buckled and connected with the second buckle position, and the outer side wall of the upper pipe body is attached to the inner side wall of the installation cylinder; and, be equipped with direction lateral wall and sealed lateral wall downwards in proper order at the inside wall of installation section of thick bamboo from the second fixed slot, direction lateral wall from sealed lateral wall to the second fixed slot extension in-process is set up as big-end-up's toper gradually towards the center convergence of installation section of thick bamboo.

10. A vacuum cleaner comprising a vacuum cleaner ducting arrangement as claimed in any one of claims 1 to 9 and a housing; the main machine of the dust collector is positioned in the shell, and the dust cup component is exposed out of the shell.

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