CN204698456U - A kind of hand held cleaner with spiral secondary spout travel fatigue gas separation structure - Google Patents

Abstract

The utility model discloses a kind of hand held cleaner, vacuum cleaner body inside is provided with spiral secondary spout travel fatigue gas separation structure and an one-level dirt cylinder, spiral secondary spout travel fatigue gas separation structure comprises one cyclonic cylinder, secondary rotary air duct, is arranged at the spiral dirt air separation of secondary rotary air duct upper end, and whirlwind cover.One cyclonic cylinder is implemented one-level dirt gas with whirlwind cover to the elementary dirt gas entering spiral secondary spout travel fatigue gas separation structure and is separated, and the secondary dirt gas after separation enters secondary rotary air duct and carries out the separation of secondary dirt gas.This dust catcher amount of parts is few, and assembling procedure is simple, and the combination property of complete machine is high.Spiral secondary spout travel fatigue gas separation structure small volume, can effectively reduce fuselage space simultaneously, realizes maximum storage ash volume.

Description

A hand-held vacuum cleaner with a spiral-type secondary tornado dust-gas separation structure

technical field

The utility model belongs to the technical field of vacuum cleaner production and particularly relates to a hand-held vacuum cleaner with a spiral-type secondary tornado dust-gas separation structure.

Background technique

As a daily necessities, vacuum cleaners are widely used in indoor and outdoor cleaning. The vacuum cleaner is a cleaning appliance that uses the motor to drive the blades to rotate at high speed, and generates air negative pressure in the sealed housing, thereby sucking the dust into the dust collection device, and discharging the filtered air out of the fan at a very high speed. The vacuum cleaner is based on its function The classification includes dry vacuum cleaners and wet and dry vacuum cleaners. Dry vacuum cleaners generally include dust bag type and fuselage type. Vacuum cleaners are classified according to shape and can be divided into horizontal, vertical, and handheld vacuum cleaners. Surfaces, sofas, windowsills, desktops, electrical appliances and other items.

The dust-gas separation mode of the dust collection part of the existing handheld vacuum cleaner mostly adopts the first-stage centrifugal separation mode or the dust bag filter mode, and the filtration efficiency of these two separation modes is low and easy to be blocked.

The existing two-level separation fuselage generally includes a two-level dust-air separation structure. The first-level structure is used to filter large-scale dirt in the air, and the second-level structure is used to separate and collect small dust particles and other sundries. Traditional The second-stage dust and gas separation structure of the current airframe generally forms a second-stage cyclone through the cooperation of the fuselage filter cover plate and the cyclone body provided with several cyclone ports. This structure requires more parts, and the molds and assembly processes involved are also relatively Many and complex, the sealing of each link is difficult to control, and air leakage and dust leakage are prone to occur, which affects the overall performance of the whole machine.

Chinese patent document CN200520102558.7 discloses an integrated vacuum cleaner body with double separation. , such a design requires a large number of parts, and the secondary dust tank is placed in the first-level dust tank, occupying the space of the first-level dust tank, excessively occupying the dust collection volume of the fuselage, and the ash storage space is limited. The effect is greatly affected, and the secondary air return area is small, resulting in low air volume of the whole machine. At the same time, this type of secondary dust-gas separation body structure requires a relatively high and large body volume, and its shape is not suitable for portable handheld vacuum cleaners, and the scope of use is limited. In addition, due to the high flexibility of the handheld vacuum cleaner, the position can be changed at any time during work, and the dust in the existing fuselage structure is easy to flow back.

In view of the above problems, it is necessary to propose a new type of handheld vacuum cleaner with a spiral two-stage tornado dust-gas separation structure, which can reduce the number of structural parts, simplify the assembly process, improve the overall performance of the whole machine, and effectively reduce the secondary separation structure. The occupied space of the fuselage realizes the largest ash storage volume, improves the dust collection efficiency, and effectively prevents the dust from flowing back.

Utility model content

In view of this, the utility model provides a hand-held vacuum cleaner with a spiral two-stage tornado dust-gas separation structure. The body of the hand-held vacuum cleaner is equipped with a spiral two-stage tornado dust-gas separation structure, and the shape fits the hand-held vacuum cleaner , the number of parts is small, the assembly process is simple, the overall performance of the whole machine is improved, and at the same time, the space occupied by the secondary separation structure is effectively reduced, the largest ash storage volume is achieved, the dust collection efficiency is improved, and dust backflow is effectively prevented.

According to a hand-held vacuum cleaner proposed according to the purpose of the utility model, an accommodating space is provided inside the fuselage. The space on the opposite side of the secondary tornado dust-gas separation structure constitutes the first-stage dust cylinder, and the space on the same side as the spiral secondary tornado dust-gas separation structure constitutes the primary cyclone cylinder of the spiral secondary tornado dust-gas separation structure.

Preferably, the spiral-type secondary tornado dust-gas separation structure includes a primary cyclone, a secondary cyclone disposed inside the primary cyclone, and a spiral dust-gas separation device disposed at the upper end of the secondary cyclone , and a cyclone cover arranged between the primary cyclone tube and the secondary cyclone tube, a gap is provided between the secondary cyclone tube and the inner wall of the cyclone cover, and the gap is used to form a primary dust-gas separation The final secondary dust-gas separation air duct, the primary cyclone tube and cyclone hood implement primary dust-gas separation for the primary dust gas entering the secondary dust-gas separation device, and the secondary dust gas after separation enters the secondary Cyclone for secondary dust and gas separation.

Preferably, the handheld vacuum cleaner includes an air inlet of the fuselage, and the first-stage cyclone includes a first-stage ash rejection port, and dust enters the first-stage cyclone through the air inlet of the fuselage to realize the first-stage dust and gas separation. Under the action of the first-level ash throwing port, it enters the first-level dust tank.

Preferably, a secondary dust collection device is provided below the secondary cyclone, the bottom of the secondary cyclone constitutes the top of the secondary dust collection device, and a side wall of the secondary cyclone near the bottom is provided There is a secondary ash throwing port.

Preferably, the secondary dust collecting device includes a dust inlet main body and a dust channel, the dust channel extends to the bottom of the main machine to abut against the primary dust cylinder, and the dust inlet main body is sealed or integrally formed with the dust channel.

Preferably, the main part of the dust inlet or the dust channel or both are at least partly sided by the inner side of the fuselage, or form an independent secondary dust collection space.

Preferably, the center of the bottom of the secondary cyclone is designed to protrude downwards to prevent dust from flowing backwards.

Preferably, a dust-shielding cylinder is arranged inside the secondary cyclone, and a gap is provided between the dust-shielding cylinder and the secondary cyclone, and the gap is used to form a secondary dust-gas separation air duct, and the inner side wall of the dust-shielding cylinder It is used to constrain the dust to rotate in the dust shield to generate centrifugal force to resist the suction of negative pressure.

Preferably, after the first-stage dust-air separation of the dust-bearing air is carried out by the cyclone hood, at least a part is guided to the spiral dust-air separation device through the secondary dust-air separation air duct, and is guided by the spiral dust-air separation device. Then, the inner wall of the secondary cyclone forms an airflow that rotates toward the bottom of the cylinder. The dust in the airflow is driven by centrifugal force to the bottom of the cylinder and is collected in the secondary dust collection space. The air in the rotating airflow is drawn out by negative pressure. At the air outlet of the spiral two-stage tornado dust-gas separation structure, the second-stage dust-gas separation is realized.

Preferably, the upper end of the air outlet of the fuselage further includes a filter device 230, the filter device may be a filter cotton, and the fine concentration dust gas passes through the air outlet of the fuselage for final filtration through the filter cotton.

Preferably, the spiral dust and gas separation device includes a spiral wind impeller for generating a secondary cyclone, the spiral wind impeller is provided with a number of blades inclined downward, and the blades can restrict the flow direction of the dust gas to be inclined downward dive.

Preferably, the spiral dust-gas separation device further includes an inner ring arranged on the inner ring of the spiral wind impeller, and a plurality of guiding guides are arranged on the side wall of the inner ring corresponding to the air outlet of the spiral wind impeller. Cutting surface, the guiding cutting surface constrains the dust flow to the outer ring of the spiral wind impeller and starts to form a rotating state.

Preferably, the overall air inlet area of the spiral wind impeller is smaller than the air outlet area of the spiral two-stage tornado dust and gas separation structure, so that the centrifugal force generated by the rotation is sufficient to resist the suction of negative pressure.

Compared with the prior art, the advantages of the handheld vacuum cleaner disclosed by the utility model are:

The spiral two-stage tornado dust and gas separation structure is adopted. Compared with the previous dust collection mode, it can improve the filtration efficiency, reduce the structural parts, simplify the assembly process, and improve the overall performance of the whole machine.

The dust-gas separation structure has a small volume, which can effectively reduce the fuselage space occupied by the separation structure, realize the largest ash storage volume, and improve the dust collection efficiency.

The spiral two-stage tornado dust and gas separation structure and the shape of the dust cylinder are designed to fit the shape of the hand-held vacuum cleaner, and are suitable for the hand-held vacuum cleaner.

The center of the bottom of the secondary cyclone is designed to protrude downward, so that the dust is not easy to flow back.

The secondary dust collection device extends directly to the bottom of the fuselage, and some of them use the inner side of the fuselage as the side, which saves materials and facilitates dust dumping.

A filtering device is also included on the upper end of the air outlet of the fuselage to prevent dust from pouring out from the air outlet to achieve final filtration.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a cross-sectional view of the internal structure of the fuselage.

Figure 2 is the overall appearance of the fuselage

Figure 3 is a diagram of the internal structure of the fuselage.

Figure 4 is a schematic diagram of the secondary cyclone and the secondary dust collection device.

Figure 5 is a diagram of the airflow direction of the fuselage.

Figure 6 is a perspective view of the appearance and interior of the cyclone hood

Fig. 7 is a schematic structural diagram of a spiral dust-gas separation device.

Fig. 8 is a schematic diagram of the airflow direction of the spiral dust-gas separation device.

Figure 9 is an exploded view of the fuselage.

Reference signs and component parts involved in the accompanying drawings:

100, the fuselage; 110, the first-level dust bin; 111, the first-level ash throwing port; 120, the air inlet of the fuselage; 130, the air outlet of the fuselage; 140, the clapboard; 150, the opening;

210, primary cyclone; 211, cyclone cover; 212, secondary cyclone; 213, primary air inlet duct; 214, secondary dust collection device; 215, dust shielding cylinder; 216, secondary dust and gas separation wind Road; 217, secondary ash throwing port; 220, spiral dust and gas separation device; 221, spiral wind impeller; 222, inner ring; 223, guiding section; 224, windshield; Groove; 232, ash inlet main body; 233, dust channel.

Detailed ways

The traditional two-stage dust-gas separation structure requires many parts, and the molds and assembly processes involved are relatively many and complicated. The sealing of each link is difficult to control, and it is prone to air leakage and dust leakage, which affects the overall performance of the whole machine. performance. In addition, the previous two-stage dust-gas separation type fuselage structure is axial layout, which makes the ratio of the filter structure to the space of the fuselage larger, and takes up too much dust collection volume of the fuselage, and the ash storage space is limited. , and this type of secondary dust-gas separation body structure requires a relatively high and large body volume, and its shape is not suitable for portable hand-held vacuum cleaners, and the scope of use is limited.

Aiming at the deficiencies in the prior art, the utility model provides a hand-held vacuum cleaner with a spiral two-stage tornado dust-gas separation structure, so as to reduce the number of structural parts, simplify the assembly process, improve the overall performance of the whole machine, and effectively Reduce the space occupied by the secondary separation structure, achieve the largest ash storage volume, and improve the dust collection efficiency, especially the spiral secondary tornado dust and gas separation structure and the shape of the dust cylinder are designed to fit the shape of a hand-held vacuum cleaner, suitable for hand-held type vacuum cleaner.

The technical solutions of the present utility model will be clearly and completely described through specific embodiments below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 9 together, a hand-held vacuum cleaner. There is an accommodating space inside the fuselage. The space on the opposite side of the spiral two-stage tornado dust-gas separation structure constitutes the first-stage dust cylinder 110, and the space on the same side as the spiral two-stage tornado dust-gas separation structure constitutes the first stage of the spiral two-stage tornado dust-gas separation structure. Cyclone 210.

The spiral secondary tornado dust and gas separation structure includes a primary cyclone 210, a secondary cyclone 212 disposed inside the primary cyclone 210, and a secondary cyclone 212 disposed between the primary cyclone and the secondary cyclone Between the cyclone cover 211, there is a gap between the secondary cyclone tube and the inner wall of the cyclone cover, and the gap is used to form a secondary dust-gas separation air duct 216 after the primary dust-gas separation. The primary cyclone tube includes a Level 111 for throwing ashes. Dust air enters the first-stage cyclone through the air inlet, and the first-stage cyclone 210 and the cyclone cover 211 perform a first-stage dust-air separation on the primary dust gas entering the first-stage cyclone, and the dust is thrown by the first-stage dust under the action of centrifugal force. Port 111 enters the first-level dust cylinder 110, and the low-concentration dust gas after the first-level separation is sucked into the second-level dust-gas separation air duct 216 by the cyclone cover mesh screen, and passes through the spiral dust-gas separation device in the second-level cyclone. A secondary cyclone is generated under the constraint.

Wherein, the inner side of the upper end of the cyclone cover is provided with a spiral groove 231, so that the airflow rotates there to generate centrifugal force, which facilitates the airflow to spiral down into the spiral dust-gas separation device.

The spiral dust and gas separation device 220 is installed at the upper end of the secondary cyclone 212. After the air with dust is separated by the cyclone cover 211 for the first stage of dust and gas separation, at least a part of it is guided to the spiral through the secondary dust and gas separation air duct 216. Type dust and gas separation device 220, and under the guidance of the spiral dust and gas separation device, an airflow rotating to the bottom of the cylinder is formed on the inner wall of the secondary cyclone 212. Below the secondary cyclone 212, a secondary dust collection The device 214, the bottom of the secondary cyclone constitutes the top of the secondary dust collection device, and the secondary cyclone is sealed and connected with the secondary dust collection device, or integrally formed.

On the side wall of the secondary cyclone 212 near the bottom, a secondary ash throwing port 217 is provided, and at the same time, at the position close to the secondary ash throwing port 217, the center of the bottom of the secondary cyclone 212 protrudes downward. Therefore, when the air flows, the air pressure at the upper part of the secondary cyclone is greater than the air pressure at the lower part, and the dust also flows from top to bottom, preventing the dust from flowing back when the hand-held vacuum cleaner is used in changing postures. The dust in the secondary dust gas spins down to the bottom of the cylinder under the centrifugal force, and enters the space of the secondary dust collecting device 214 through the secondary dust throwing port 217, and the air in the rotating airflow is drawn out by negative pressure to realize the second stage. Secondary dust and gas separation.

The spiral dust and gas separation device 220 includes a spiral wind impeller 221 for generating a secondary cyclone. The spiral wind impeller 221 is provided with a number of downward-sloping blades, which can restrict the flow direction of dust and gas to swoop downward to form a spiral air flow.

The spiral dust and gas separation device 220 also includes an inner ring 222 arranged on the inner ring of the spiral wind impeller 221, and the inner ring 222 is provided with a number of guide cut surfaces 223 on the side wall corresponding to the air outlet of the spiral wind impeller 221, and the guide cut surfaces constrain The dust flows to the outer ring of the spiral wind impeller and begins to form a rotating state. Wherein, an outer ring is arranged on the outer ring circumference of the spiral wind impeller, and through the functions of the inner and outer rings, the airflow guidance is realized, and the structural strength and stability of the spiral wind impeller are improved. A windshield 224 extends downwards from the inner circular wall of the spiral wind impeller.

A dust shielding cylinder 215 is arranged inside the secondary cyclone 212, and a gap is provided between the dust shielding cylinder and the secondary cyclone. The spiral rotation is realized in the air duct to generate centrifugal force so that the dust falls along the inner wall of the secondary cyclone. The inner wall of the dust-shielding cylinder is used to restrain the dust gas rotating in the dust-shielding cylinder to generate centrifugal force to resist the suction force of the negative pressure, so as to realize the effective separation of the dust-gas.

The secondary dust collecting device includes an ash inlet body part 232 and a dust channel 233, the ash inlet body part 232 and the dust channel 233 are sealed and connected by a sealing ring, and the dust channel 233 can be sided by the inside of the fuselage , and extend to the lower part of the fuselage to abut against the first-level dust cylinder. When cleaning the dust in the vacuum cleaner, all the dust falls in the first-level dust cylinder and the dust channel at this time, and the spiral-type second-level tornado dust-gas separation structure is drawn out and the inlet As for the ash main part, the ash inlet main part 232 is separated from the dust channel 233, and then the dust can be poured out.

The upper end of the air outlet of the fuselage also includes a filter device 230, which can be a filter cotton, and the dust with a small concentration passes through the air outlet of the fuselage and then passes through the filter cotton for final filtration again.

Among them, the secondary cyclone and the spiral dust-gas separation device can be integrally processed and formed. After forming, the spiral dust-gas separation device can be directly installed at the center of the secondary cyclone to complete the assembly. The specific forming method is not limited.

In addition, the spiral two-stage tornado dust-gas separation structure can also be directly processed and formed in one piece, and the specific forming and assembling methods are not limited.

The utility model relates to a hand-held vacuum cleaner. The fuselage 100 is provided with an accommodating space inside. A spiral type secondary tornado dust gas separation structure is provided in the accommodating space, and the accommodating space is located in the spiral type secondary tornado dust gas The space on the opposite side of the separation structure constitutes the primary dust cylinder 110, and the space on the same side as the spiral secondary tornado dust and gas separation structure constitutes the primary cyclone 210 of the spiral secondary tornado dust and gas separation structure. The two-stage tornado dust-gas separation structure comprises a primary cyclone 210, a secondary cyclone 212 arranged inside the primary cyclone 210, and a cyclone arranged between the primary cyclone and the secondary cyclone. Cover 211. The lower part of the fuselage is provided with an air inlet 120, and the upper side of the fuselage is provided with an air outlet 130. The dusty air is guided to the cyclone hood of the secondary dust-gas separation structure through the air inlet, and the dusty air is carried out by the cyclone hood 211 for the first time. After the primary dust and gas separation, at least part of it passes through the cyclone hood and then enters the secondary cyclone 212 for the second stage of dust and gas separation.

Wherein, the overall air inlet area of the spiral wind impeller 221 is smaller than the air outlet area of the fuselage, so that it can have a higher rotation speed to resist the suction of negative pressure under the same air volume.

A partition 140 is arranged inside the fuselage, and an opening 150 extends downward at the center of the partition, and the air after the secondary dust-gas separation is drawn out by negative pressure. The upper end of the cyclone hood is covered by setting a partition, so that the dust gas filtered by the cyclone hood will be guided into the spiral dust-gas separation device by the upper end of the secondary dust-gas separation air duct to realize the air intake guidance. Among them, the middle part of the partition is a downward-sloping arc structure, which is convenient for the movement and guidance of dust and gas.

The utility model discloses a hand-held vacuum cleaner. The vacuum cleaner comprises a spiral-type secondary tornado dust-gas separation structure and a primary dust cylinder. The spiral-type secondary tornado dust-gas separation structure only includes a primary cyclone cylinder and a secondary cyclone cylinder. , Cyclone hood and spiral dust and gas separation device can realize the filtration and separation of dust and gas, which effectively reduces the number of structural parts, simplifies the assembly process, and facilitates the improvement of the overall performance of the whole machine. At the same time, the spiral secondary tornado dust and gas separation structure has a small volume, which can effectively reduce the space occupied by the secondary separation structure, achieve the largest ash storage volume, and improve dust collection efficiency, especially suitable for hand-held vacuum cleaners. In addition, the secondary dust collection device extends directly to the bottom of the fuselage, and at the same time uses the inner side of the fuselage as the side, saving materials and facilitating ash dumping.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A handheld vacuum cleaner, characterized in that: the fuselage of the handheld vacuum cleaner is provided with an accommodating space, the accommodating space is provided with a spiral-type secondary tornado dust-gas separation structure, and the accommodating space is located The space on the opposite side of the spiral two-stage tornado dust-gas separation structure constitutes a first-stage dust cylinder, and the space on the same side as the spiral two-stage tornado dust-gas separation structure constitutes a part of the spiral two-stage tornado dust-gas separation structure. level cyclone. 2. The hand-held vacuum cleaner according to claim 1, characterized in that: said spiral secondary tornado dust-gas separation structure comprises a primary cyclone, a secondary cyclone arranged inside said primary cyclone, and The spiral dust and gas separation device at the upper end of the secondary cyclone, and the cyclone cover arranged between the primary cyclone and the secondary cyclone, and the inner wall of the secondary cyclone and the cyclone cover There is a gap, which is used to form a secondary dust-gas separation air duct after the primary dust-gas separation, and the primary cyclone and cyclone hood implement the primary dust gas entering the spiral-type secondary tornado dust-gas separation structure. The primary dust and gas separation, the separated secondary dust and gas enter the secondary cyclone for secondary dust and gas separation. 3. The hand-held vacuum cleaner according to claim 2, characterized in that: the hand-held vacuum cleaner includes an air inlet of the fuselage, the first-stage cyclone includes a first-stage dust-removing port, and dust enters the first-stage through the air inlet of the fuselage. In the cyclone, the first-level dust and gas separation is realized, and the dust enters the first-level dust cylinder from the first-level ash throwing port under the action of centrifugal force. 4. The hand-held vacuum cleaner according to claim 2, characterized in that: a secondary dust collection device is provided below the secondary cyclone, and the bottom of the secondary cyclone constitutes the top of the secondary dust collection device, A secondary ash throwing port is provided on the side wall of the secondary cyclone close to the bottom. 5. The hand-held vacuum cleaner according to claim 4, characterized in that: the secondary dust collection device includes a dust inlet main body and a dust channel, the dust channel extends to the bottom of the main machine and abuts against the primary dust cylinder, and the dust inlet body The part is sealed and connected with the dust passage, and the dust passage takes the inside of the fuselage as the side, or forms an independent dust passage without leaning against the inside of the fuselage. 6. The handheld vacuum cleaner according to claim 4, characterized in that: the center of the bottom of the secondary cyclone is designed to protrude downward. 7. The hand-held vacuum cleaner according to claim 4, characterized in that: after the air with dust is subjected to the first-stage dust-air separation by the cyclone cover, at least part of it is guided to the spiral dust-air through the second-stage dust-air separation air duct. Under the guidance of the spiral dust and gas separation device, an airflow rotating to the bottom of the cylinder is formed on the inner wall of the secondary cyclone, and the dust in the airflow is driven by centrifugal force to the bottom of the cylinder and is collected in the secondary cyclone. In the dust collection space, the air in the swirling airflow is drawn out by the negative pressure from the air outlet of the spiral two-stage tornado dust-air separation structure to realize the second-stage dust-air separation. 8. The hand-held vacuum cleaner according to claim 7, characterized in that: the upper end of the air outlet of the fuselage also includes a filter device, and the filter device is a filter cotton, and the fine concentration dust gas passes through the air outlet and passes through the filter cotton. final filter. 9. The hand-held vacuum cleaner according to claim 2, characterized in that: the spiral dust and gas separation device includes a spiral wind impeller for generating a secondary cyclone, and the spiral wind impeller is provided with several downwardly inclined Slanted downward swooping vanes restrict the flow direction of the dust gas. 10. The hand-held vacuum cleaner according to claim 9, characterized in that: the spiral dust and gas separation device further comprises an inner ring arranged on the inner ring of the spiral wind impeller, and the inner ring is connected to the spiral The side wall corresponding to the air outlet of the wind impeller is provided with a number of guiding cut surfaces that restrict the dust flow to the outer ring of the spiral wind impeller and start to form a rotating state.