CN1208019C - Cyclone dust collection device for vacuum cleaners - Google Patents

Abstract

The utility model relates to a cyclone dust collecting device of a vacuum cleaner, which can conveniently remove impurities from a grill assembly. The device has a cyclone main body which is connected to the suction port of the vacuum cleaner and has an air inflow port and an air outflow port. The main body is used to form a cyclone on the air containing impurities sucked from the air inflow port. A removable dust container is attached to the cyclone body. In the dust container, a grill assembly having a plurality of longitudinal slots is provided on the air outlet of the main body of the cyclone. The grille assembly prevents the reverse flow of impurities and has an impurity removal element or sweeper movably mounted on the periphery of the grille body to remove dust collected on the grille. Movement of the sweeper is controlled using an external knob through a rack and pinion connection.

Description

Cyclone dust collection device for vacuum cleaners

technical field

The present invention relates to a cyclone dust collecting device for a vacuum cleaner, and more particularly to a cyclone dust collecting device for a vacuum cleaner having a dust removing device for easily cleaning impurities from a grill assembly.

Background technique

Generally speaking, the cyclone dust collection device of the vacuum cleaner separates and collects the impurities in the impurity-containing gas entering the vacuum cleaner from the suction port by generating an air vortex and utilizing the centrifugal force of the generated air vortex.

US Patent No. 6,195,835 (Application No. 09/388,532) issued to the same applicant on March 6, 2001 discloses a vacuum cleaner with such a cyclone dust collecting device.

Fig. 1 schematically illustrates the structure of a vacuum cleaner with a cyclone dust collecting device in US Patent No. 6,195,835. As shown in FIG. 1 , the cyclone dust collection device includes a cyclone main body 20 , a dust container 30 and a grill assembly 40 .

The cyclone main body 20 includes: a first connecting pipe 21 connected to the suction inlet extension pipe 1a; a second connecting pipe 22 connected to the main body extension pipe 1b of the vacuum cleaner; an air inlet 23 connected to the first connecting pipe 21; The air outlet 24 connected with the two connecting pipes 22 . In the cyclone main body 20, the gas containing impurities is sucked through the air inflow port 23, and forms a vortex.

The dust container 30 is detachably connected to the cyclone main body 20 and receives impurities separated from the air by the centrifugal force generated by the vortex of the cyclone main body 20 .

The grill assembly 40 is disposed on the air outlet 24 of the cyclone main body 20 to prevent the collected impurities from flowing back through the air outlet 24 . The grill assembly 40 includes a grill main body 41, a plurality of fine holes 42 formed on the periphery of the grill main body 41, thereby forming a passage to the air outlet 24, and a conical impurity reverse flow made at the lower end of the grill main body 41. Blocking plate 43 .

In the conventional vacuum cleaner with the cyclone dust collection device of the above structure, the air containing impurities is sucked into the cyclone through the first connecting pipe 21 and the air inlet 23 along the oblique direction due to the suction force generated at the suction port 2 of the vacuum cleaner. Main body 20 in. The sucked air flows toward the lower part of the cyclone main body 20 to form a vortex (indicated by a solid arrow in FIG. 1 ). In this process, impurities are separated from the air by the centrifugal force of the vortex air and contained in the dust container 30 .

When the air flow hits the bottom of the dust container 30 , the air flows in the opposite direction, that is, to the upper part of the cyclone main body 20 . Then the air flows through the fine holes 42 of the grill assembly 40, the air outlet 24 and the second connecting pipe 22, and flows into the cleaner main body 1 (indicated by a dotted arrow in FIG. 1). Some of the impurities floating in the upwardly moving air flow hit the impurity backflow barrier 43 and are thereby reflected back into the vortex. In addition, other impurities that are still suspended in the upwardly moving airflow after hitting the impurity counterflow blocking plate 43 are filtered by the pores 42 of the grille assembly 40 when the air flows through the pores 42, and the filtered impurities fall into the airflow. in the vortex.

Those impurities that have not been removed after passing through the fine holes 42 are discharged through the fine holes 42 and the air outlet 24, but are filtered by the filter paper 4 of the main body of the vacuum cleaner 1, and the clean air is discharged to the vacuum through the motor chamber (not shown) The exterior of the vacuum cleaner.

In the cyclone dust collecting device of the above-mentioned vacuum cleaner, when the air containing impurities is discharged through the fine holes 42 of the grill assembly 40, some impurities may be adsorbed on the grill assembly 40. As time goes by, more and more impurities are adsorbed on the grid assembly 40 , which will eventually block the pores 42 . As a result, problems such as a drop in suction power or overloading of the motor can occur. The pores 42 of the grid assembly 40 must therefore be frequently cleaned of impurities. For the above-mentioned conventional cyclone dust collecting device, in order to remove the impurities from the grill assembly 40, the user must disassemble the dust container 30 from the main body 20 of the vacuum cleaner, and remove the impurities by hand or with a brush. Therefore, the cleaning process of the grill assembly 40 is very complicated. Also, since the grill assembly 40 is exposed during cleaning, impurities are likely to float into the air and contaminate the surrounding area.

Contents of the invention

The present invention solves the above-mentioned problems in the prior art. It is therefore an object of the present invention to provide a cyclone dust collection device in a vacuum cleaner in which impurities can be easily removed from the grill assembly and removed from the grill assembly using the dust container still in the installed position The impurities are collected in the dust container, thus keeping the surrounding area clean.

According to the cyclone dust collecting device of the vacuum cleaner of the present invention, the above object can be achieved. The cyclone dust collecting device of the vacuum cleaner includes: a cyclone main body, and the cyclone main body includes: a first connecting pipe, and the first connecting pipe is connected to An extension pipe at the suction port of the vacuum cleaner, a second connecting pipe connected to the extension pipe at the main body of the vacuum cleaner, an air inlet connected to the first connecting pipe, and an air inlet connected to the second connecting pipe. Outlet, the main body of the cyclone is used to make the air containing impurities sucked from the air inlet to form a cyclone; the dust container, the dust container is detachably installed on the main body of the cyclone, and is used to accommodate the dust separated from the air by the cyclone. Impurities coming out; a grill assembly comprising a grill main body and disposed at the air outlet of the cyclone main body, and having a plurality of longitudinal slots formed on the outer periphery of the grill main body and There is a certain distance from each other, so as to form a channel to the air outlet, and the grill assembly is used to prevent the impurities collected in the dust container from flowing backward through the air outlet of the cyclone main body; the impurity removal element, the impurity removal element can be along the The outer periphery of the grid body moves so as to move up and down, thereby removing the impurities attached to and around each longitudinal slot of the grid assembly; the rack, one end of the rack is connected with the impurity removal element, and is connected from the connecting end Extending upward; the pinion, which is provided in the cyclone main body, and has a tooth portion meshed with the tooth portion of the rack; and the knob, which is connected to the pinion through a shaft, and is located outside the cyclone main body , wherein the plurality of longitudinal slits includes at least two opposing slits, the two opposing slits serve as guides for the impurity removing element when the impurity removing element moves up and down, the impurity removing element has a cylindrical shape A main body having ribs inserted into at least two opposite slots, and a brush element connected to the inner circumference of the cylindrical main body.

Preferably, the grid assembly includes a conical impurity backflow blocking plate, and the impurity backflow blocking plate is integrally formed with the lower end of the grid main body.

Description of drawings

In conjunction with the accompanying drawings, the above and other objects and characteristics of the present invention can be better understood through the following detailed description of the embodiments, wherein:

Fig. 1 is a sectional view of a conventional vacuum cleaner cyclone dust collection device;

2 is an exploded perspective view of a cyclone dust collection device for a vacuum cleaner according to a preferred embodiment of the present invention;

Fig. 3 is a cross-sectional view of the assembled impurity removing part of the cyclone dust collecting device of the vacuum cleaner shown in Fig. 2 .

Detailed ways

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

2 is an exploded perspective view of a cyclone dust collection device of a vacuum cleaner according to a preferred embodiment of the present invention, and FIG. 3 is a cross-sectional view of an assembled impurity removal part or a grille cleaner part of the cyclone dust collection device of the vacuum cleaner shown in FIG. 2 .

As shown in FIGS. 2 and 3 , the cyclone dust collection device of the vacuum cleaner according to the preferred embodiment of the present invention includes a cyclone body 100 , a dust container 200 , a grill assembly 300 and an impurity removal part 400 .

The cyclone body 100 is divided into an upper body 110 and a lower body 120 , and the two parts are connected to each other by a plurality of screws 130 . The lower body 120 has a first connection pipe 121 connected to the extension pipe 1a at the suction port of the cleaner; and an air inflow port 122 connected to the first connection pipe 121 . The upper body 110 has a second connecting pipe 111 connected to the extension pipe 1b at the main body of the vacuum cleaner; and an air outlet 112 connected to the second connecting pipe 111 . The upper body 110 is also formed with a through hole 113 at one side. The air containing impurities sucked through the suction port of the vacuum cleaner is sucked into the cyclone main body 100 along the oblique direction through the first connecting pipe 121 and the air inflow port 122 . As a result, a vortex is generated in the cyclone main body 100 and the dust container 200, and a centrifugal force is generated, thereby separating impurities from the air.

The dust container 200 is detachably connected to the cyclone main body 100, and cooperates with the cyclone main body 100 to generate a cyclone. The dust container 200 can also accommodate impurities separated from the air.

The grill assembly 300 is disposed on the air outlet 112 of the cyclone main body 100 to prevent impurities in the dust container 200 from flowing back to the air outlet 112 . This grill assembly 300 includes a grill main body 310, a plurality of longitudinal slots 320, which are arranged on the outer periphery of the grill main body 310 to form passages to the air outlet 112, and formed at the lower end of the grill main body 310. A conical impurity backflow blocking plate 330 . The upper edge of the grill body 310 is supported by the lower body 120 and the upper body 110 of the cyclone body 100 , so the grill assembly 300 is installed on the air outlet 112 of the cyclone body 100 . A plurality of longitudinal slots 320 are formed along the longitudinal direction of the grill body 310 at predetermined intervals from each other. At least two opposing longitudinal slots 320 are formed so that these slots 320 can serve as guides for the dust removing elements when they move up and down as will be described below.

The foreign matter backflow blocking plate 330 blocks foreign matter in the air moving upward in the dust container 200 before the foreign matter reaches the grill main body 310 . Thus the impurities fall.

The foreign matter removal part 400 may remove foreign matter attached on and around the slot 320 of the grill assembly 300 and includes a foreign matter removal member or sweeper 410 , a rack 420 , a pinion 430 and a knob 440 .

The impurity removing member 410 may move along the outer circumference of the grill main body 310 of the grill assembly 300 in the longitudinal direction. The impurity removing element 410 comprises a cylindrical main body 411, a brush 412 and ribs 413 connected to the inner circumference of the cylindrical main body 411, and the ribs 413 are arranged along the inside of the cylindrical main body 411, and the number is the same as that of the grid main body 310. The guides have the same number of longitudinal slots 320 . Here, the number of the ribs 413 may be four as shown in FIG. 2 or FIG. 3 , with a certain distance from each other. Although the present embodiment illustrates using four slots 320 as guides, the number of slots 320 may vary, for example, 2 to 3.

The rack 420 extends upwards, and one end thereof is fixed on the rib 413 of the impurity removing element 410 . Therefore, when the rack 420 is pulled, the foreign matter removing member 410 can move up or down. The rack 420 has a tooth portion 421 on one side thereof.

The pinion gear 430 is disposed at a certain position inside the upper body 110 of the cyclone body 100 . The pinion gear 430 has a tooth portion and meshes with the tooth portion 421 of the rack gear 420 . Therefore, when the pinion 430 is rotated, the rack 420 can move up and down, and as a result, the foreign matter removing member 410 can move up and down.

Knob 440 is connected to pinion 430 by shaft 441 . The shaft 441 protrudes outward from the upper body 110 through the through hole 113 formed at one side of the upper body 110 . The protruding end of the shaft 441 is connected with the knob 440 . Therefore, when the knob 440 is rotated, the pinion 430 is rotated together.

According to a preferred embodiment of the present invention, a guide 340 may be formed inside the grid body 310 to guide the movement of the rack 420 . Preferably, a seal 114 can be used to seal the through hole 113 of the cyclone body 100 .

Next, the operation of the cyclone dust collecting device of the vacuum cleaner having the above structure according to the present invention will be explained.

When the vacuum cleaner is running, the air containing impurities is sucked into the cyclone main body 100 along the oblique direction through the first connecting pipe 121 and the air inlet 122 by virtue of the strong suction generated at the suction inlet. The sucked air turns into a cyclone while moving toward the lower part of the dust container 200 . During this process, impurities are separated from the air and accommodated in the dust container 200 by the centrifugal force of the cyclone.

Then, with the airflow reflected upward from the bottom of the dust container 200 , the air containing impurities is discharged toward the cleaner body through the respective longitudinal slots 320 of the grill assembly 300 , the air outlet 112 and the second connecting pipe 111 . During this process, some impurities in the upwardly moving airflow suspended in the dust container 200 hit the impurity reverse flow blocking plate 330 and are reflected back into the cyclone. Some impurities with larger particles still exist after passing through the impurity backflow blocking plate 330 , they are filtered by the longitudinal slots 320 and reflected back into the cyclone, and the air is discharged through the longitudinal slots 320 of the grill assembly 300 .

During the above process, as described above, impurities adhere to and around the respective longitudinal slots 320 of the grill assembly 300 and accumulate on the slots 320 . In this case, when the user turns the knob 440 provided outside the cyclone body 100 in the direction indicated by the arrow in FIG. 3 , the pinion 430 rotates and the rack 420 moves upward. Accordingly, the impurity removing member 410 rises along the outer periphery of the grid body 310 to a position shown by a dotted line in FIG. 3 . When the impurity removal member 410 is raised, the impurities on each longitudinal slot 320 are removed. When the knob 440 is reversely rotated, the pinion 430 is also reversely rotated, so that the rack 420 moves downward. Accordingly, the impurity removing member 410 moves down along the outer periphery of the grid body 310 to the position shown by the solid line in FIG. 3 . When the impurity removing member 410 descends, the impurities are also removed. The removed impurities are accommodated in the dust container 200 .

Using the cyclone dust collection device for vacuum cleaner according to the present invention, impurities on and around the longitudinal slot 320 can be easily removed, and the dust container 200 remains in place.

According to the above-mentioned present invention, since the user can easily remove impurities on the longitudinal slot 320 of the grill assembly 300, and the dust container 200 is still in the original installation position, the vacuum cleaner is not only easy to use, but also more environmentally friendly. Because no impurities will float out during the process of removing impurities from the grill assembly 300 .

Although the present invention has been described in detail by the above embodiments, for those of ordinary skill in the art, it can be understood that within the scope of the invention without departing from the spirit of the present invention and the scope of the invention defined by the claims, modifications to the embodiments and Change is okay.

Claims (2)

1. A cyclone dust collecting device for a vacuum cleaner, comprising: Cyclone main body, the cyclone main body includes: a first connecting pipe connected to an extension pipe at the suction inlet of the vacuum cleaner, a second connecting pipe connected to the extension pipe at the main body of the vacuum cleaner, an air inflow port connected to the first connecting pipe, and an air outflow port connected to the second connecting pipe, The main body of the cyclone is used to make the air containing impurities sucked from the air inlet to form a cyclone; a dust container, which is detachably mounted on the main body of the cyclone and used to contain impurities separated from the air by the cyclone; A grill assembly, the grill assembly includes a grill main body and is arranged at the air outlet of the cyclone main body, and has a plurality of longitudinal slots, and the slots are made on the outer periphery of the grill main body with a certain distance from each other spacing, so as to form a channel to the air outlet, the grille assembly is used to prevent the impurities collected in the dust container from flowing backward through the air outlet of the cyclone main body; an impurity removal element movable along the outer periphery of the grate main body so as to move up and down, thereby removing the impurity adhering to and around each longitudinal slot of the grate assembly; a rack, one end of which is connected to the impurity removal element and extends upward from the connecting end; a pinion disposed in the cyclone body and having a tooth portion meshing with a tooth portion of the rack; a knob connected to the pinion through a shaft and located outside the main body of the cyclone, Wherein the plurality of longitudinal slots includes at least two opposite slots, and when the foreign matter removal member moves up and down, the two opposite slots serve as guides for the foreign matter removal member, and the foreign matter removal member has a cylindrical shape A main body having ribs inserted into at least two opposing slots, and a brush element attached to the inner circumference of the cylindrical main body. 2 . The cyclone dust collecting device according to claim 1 , wherein the grill assembly includes a conical impurity backflow blocking plate, which is integrally formed with the lower end of the grill main body. 3 .