CN105266719B - A kind of multi-stage cyclone vacuum cleaner dust cup structure - Google Patents

Abstract

The invention discloses a dust cup structure of a multi-stage tornado vacuum cleaner, which comprises a first-stage dust tank and an ash storage box. A cover plate is arranged at the bottom of the ash storage box. The other end of the rotating arm is fixed on the rotating shaft, and the entire L-shaped rotating arm can rotate around the rotating shaft. There is a pressing protrusion in the first-level dust cylinder. When the ash storage box is inserted into the first-level dust cylinder, the pressing protrusion Buckle the L-shaped arm so that the cover automatically covers the bottom of the ash storage box. When the ash storage box is pulled out, the pressing force acting on the L-shaped arm is released, and the cover is automatically opened to make the ash storage The dust in the ash box automatically falls into the ash storage space of the first-stage dust bin, which is convenient for the user to perform one-time ash dumping operation. At the same time, the ash storage box has a small structural volume and free movement, which can effectively reduce the occupied space of the fuselage and improve the dust collection efficiency.

Description

A multi-stage tornado vacuum cleaner dust cup structure

technical field

The invention belongs to the technical field of vacuum cleaner production, and in particular relates to a dust cup structure of a vacuum cleaner with multi-stage tornadoes.

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 dust into the dust collection device, and discharging the filtered air out of the fan at a very high speed.

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. At present, there is a dust cup of a multi-stage tornado vacuum cleaner, which adopts a two-stage separated body, generally including two-stage dust-air separation structure, the first-stage structure is used to filter large-scale dirt in the air, and the second-stage structure is used to separate and collect small Dust particles and other sundries, the traditional secondary dust and gas separation structure generally forms a secondary cyclone through the cooperation of the fuselage filter cover plate and the cyclone body with several cyclone ports.

Among them, there is a traditional multi-stage tornado vacuum cleaner dust cup. The secondary dust cup is usually connected with the bottom plate of the dust cup to form a sealed chamber. As shown in Figure 1, the structure greatly occupies the dust storage space of the entire dust cup and reduces the dust cup. The effective volume is especially true for dust cups with small overall volume, such as dust cups of hand-held vacuum cleaners. At the same time, such a structure requires more parts, and the molds and assembly processes involved are relatively more and more complicated. , It is easy to affect the overall performance of the whole machine.

There is another dust cup of multi-stage tornado vacuum cleaner. Although the secondary dust cylinder is not connected with the bottom plate of the dust cup to form a sealed chamber, however, when cleaning the dust, the secondary dust cylinder needs to be taken out first, and then poured out of the secondary dust cylinder. dust, this way of pouring ash is cumbersome and complicated.

Therefore, the industry needs a kind of dust cup structure of novel multistage tornado vacuum cleaner badly, solves the problem of pouring ash.

Contents of the invention

In view of this, the present invention provides a dust cup structure of a multi-stage tornado vacuum cleaner, which includes a first-stage dust tank and an ash storage box, the bottom of the ash storage box is provided with a cover plate, and the cover plate is arranged on the end of an L-shaped rotating arm , when the ash storage box extends into the first-level dust bin, the cover plate automatically covers the bottom of the ash storage box, when the ash storage box is pulled out, the cover plate is automatically opened, and the dust falls into the first-level dust bin, thus, it is convenient The user's ashes.

According to the purpose of the present invention, a multi-stage tornado vacuum cleaner dust cup structure is proposed, including a first-stage dust tank and an ash storage box, the bottom of the ash storage box is provided with a cover plate, and the cover plate is arranged on the end of an L-shaped pivot arm. The other end of the L-shaped rotating arm is fixed on the rotating shaft, and the entire L-shaped rotating arm can rotate around the rotating shaft. There is a pressing protrusion in the first-stage dust container, and the ash storage box extends into the first-stage dust container. , the pressing protrusion buckles the L-shaped arm so that the cover plate covers the bottom of the ash storage box. When the ash storage box is pulled out, the pressing force acting on the L-shaped arm is released, and the cover plate is Open.

Preferably, a cover plate sealing ring is provided on the interface between the ash storage box and the cover plate.

Preferably, the rotating shaft is fixedly arranged at one end of the ash storage box.

Preferably, it also includes a spiral-type secondary tornado dust-gas separation structure, the spiral-type secondary tornado dust-gas separation structure includes a primary cyclone, a secondary cyclone disposed inside the primary cyclone, and a secondary cyclone disposed inside the primary cyclone. The spiral dust and gas separation device at the upper end of the first-stage cyclone, and the cyclone cover arranged between the first-stage cyclone and the second-stage cyclone, the second-stage cyclone is arranged above the ash storage box, and the second-stage The bottom of the cyclone constitutes the top of the ash storage box, and there is a gap between the secondary cyclone and the inner wall of the cyclone cover, which is used to form a secondary dust-gas separation wind after the primary dust-gas separation. The first-stage cyclone and the cyclone cover implement a first-stage dust-gas separation for the primary dust gas entering the dust cup structure of the multi-stage tornado vacuum cleaner, and the secondary dust gas after separation enters the secondary cyclone tube for secondary dust-gas separation. separate.

Preferably, it also includes an air inlet of the fuselage, and the first-stage cyclone includes a first-stage ash rejection port, and the dust enters the first-stage cyclone through the air inlet of the fuselage to realize the first-stage dust and gas separation. The first-level ash throwing port enters the first-level dust bin.

Preferably, after the air with dust is subjected to the first-stage dust-air separation 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 Under the guidance, the inner wall of the secondary cyclone forms an airflow that rotates toward the bottom of the cylinder, and the dust in the airflow is driven by centrifugal force to the bottom of the cylinder and is collected in the ash storage box, and the air in the rotating airflow is drawn out by negative pressure At the air outlet of the two-stage tornado dust-gas separation structure, the second-stage dust-gas separation is realized.

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 two-stage tornado dust-gas separation structure, the second-stage dust-gas separation is realized.

Preferably, the secondary cyclone is conical.

Preferably, the upper end of the air outlet of the secondary tornado dust and gas separation structure further includes a filtering device.

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.

Compared with the prior art, the advantages of the dust cup structure of the multi-stage tornado vacuum cleaner disclosed by the present invention are:

There is a cover plate at the bottom of the ash storage box. After the multi-stage tornado vacuum cleaner structure is put into the dust cup, the bottom cover of the ash storage box of the secondary cyclone will automatically close. After the multi-stage tornado vacuum cleaner structure is taken out of the dust cup, the ash storage of the secondary cyclone The bottom cover of the box will be opened automatically, so that the dust in the ash storage box will automatically fall into the ash storage space of the first-level dust bin, which is convenient for the user to perform a one-time ash dumping operation.

The ash storage box has a small structural volume, does not need to be connected with the bottom plate of the dust cup to form a sealed chamber, and can move freely, which can effectively reduce the occupied space of the fuselage, realize a large ash storage volume, and improve dust collection efficiency.

The multi-stage tornado structure and the shape of the dust cylinder are designed to fit the shape of the hand-held vacuum cleaner, which is suitable for the hand-held vacuum cleaner.

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 drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural diagram of the dust cup of the vacuum cleaner in the prior art

Fig. 2 is the structural representation of multi-stage tornado vacuum cleaner dust cup in the present invention

Fig. 3 is the structural representation when the cover plate of the ash storage box is opened in the present invention

Fig. 4 is the structure diagram when the cover plate of the ash storage box is closed in the present invention

Reference signs and component parts involved in the accompanying drawings:

1. First-level dust tank; 2. Ash storage box; 3. Cover plate; 4. L-shaped rotating arm; 5. Rotary shaft; 6. Press protrusion; 7. Cover plate sealing ring;

10. First-level cyclone; 11. Second-level cyclone; 12. Cyclone cover; 13. First-level ash throwing port; 14. Spiral dust and gas separation device; 15. Filtration device.

detailed description

In the traditional multi-stage tornado vacuum cleaner dust cup, the secondary dust cylinder is usually connected with the bottom plate of the dust cup to form a sealed chamber, which greatly occupies the dust storage space of the entire dust cup and reduces the effective volume of the dust cup. Another multi-stage tornado vacuum cleaner dust The cup and the secondary dust container are not connected with the bottom plate of the dust cup to form a sealed chamber. However, when cleaning the dust, the secondary dust container needs to be taken out first, and then the dust in the secondary dust container must be poured out. The dust removal method is complicated and complicated.

Aiming at the deficiencies in the prior art, the present invention provides a dust cup structure of a multi-stage tornado vacuum cleaner. The ash storage box is a secondary dust cylinder, and a cover plate is arranged at the bottom of the ash storage box. After the dust storage box is put into the dust cup, the ash storage The cover of the box will be closed automatically. After the ash storage box is taken out from the dust cup, the cover of the ash storage box will be opened automatically, so that the dust in the ash storage box will automatically fall into the ash storage space of the first-level dust bin, which is convenient for the user to clean. One-time ash dumping operation.

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

Please refer to Fig. 2 to Fig. 4 together, a multi-stage tornado vacuum cleaner dust cup structure, including a first-stage dust tank 1 and ash storage box 2, the bottom of the ash storage box 2 is provided with a cover plate 3, and the cover plate 3 is set on a L On the end of the type pivot arm 4, a side end of the ash storage box is also fixedly provided with a rotating shaft 5, and the other end of the L-shaped pivoting arm 4 away from the cover plate 3 is fixed on the rotating shaft, and the whole L-shaped pivoting arm can be Rotating around the rotation axis 5, a pressing protrusion 6 is provided in the first-stage dust cylinder 1. The pressing protrusion 6 can be arranged on the end side of the L-shaped rotating arm, and the pressing protrusion 6 can be inserted into the ash storage box 2. When the first-stage dust bin 1 is assembled, it just buckles the L-shaped arm 4, and makes the L-shaped arm 4 rotate until the cover plate 3 covers the bottom of the ash storage box 2. At this time, the ash storage box 2 and the first-stage The dust cylinder 1 forms a partition. When the ash storage box 2 is to be taken out to clean the dust cup, the pressing force acting on the L-shaped pivot arm 4 is released, and the cover plate 3 is opened under the action of gravity at the same time, so that the dust in the ash storage box 2 It automatically falls into the first-stage dust bin 1, so that it is convenient for the user to perform a one-time ash dumping operation.

In addition, a cover plate sealing ring 7 is also provided on the joint surface of the ash storage box 2 and the cover plate 3 to strengthen the sealing performance between the ash storage box 2 and the cover plate 3 and prevent dust from leaking out.

In the vacuum cleaner of the present invention, a spiral-type secondary tornado dust-gas separation structure is also included. The spiral-type secondary tornado dust-gas separation structure includes a primary cyclone 10, a secondary cyclone 11 arranged inside the primary cyclone 10, And the cyclone cover 12 that is arranged between the primary cyclone tube 10 and the secondary cyclone tube 11, there is a gap between the secondary cyclone tube 11 and the inner wall of the cyclone cover 12, and the gap is used to form the primary dust-gas separation. The secondary dust and gas separation air duct, the primary cyclone 10 includes a primary ash throwing port 13 . The dust air enters the primary cyclone 10 through the air inlet, and the primary cyclone 10 and the cyclone cover 12 perform primary dust-gas separation on the primary dust gas entering the primary cyclone 10. The dust is separated by the primary cyclone under the action of centrifugal force. The dust-throwing port 13 enters the first-level dust tank 1, and the low-concentration dust gas after the first-level separation is sucked into the second-level dust-gas separation air duct by the mesh screen of the cyclone cover 12. A secondary cyclone is generated under the constraint of the cylinder 11.

Wherein, the inner side of the upper end of the cyclone cover 12 is provided with a spiral groove, 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-air separation device 14 is installed at the upper end of the secondary cyclone 11. After the air with dust is separated by the cyclone cover 12 for the first-stage dust-air separation, at least part of it is guided to the spiral-type dust-air separation through the secondary dust-air separation duct. Dust and gas separation device 14, and under the guidance of the spiral dust and gas separation device 14, the inner wall of the secondary cyclone 11 forms an airflow rotating to the bottom of the cylinder, and the ash storage box 2 is arranged below the secondary cyclone 11, The bottom of the secondary cyclone 11 constitutes the top of the ash storage box 2, and the secondary cyclone 11 is sealed and connected with the ash storage box 2, or integrally formed.

A secondary ash-throwing port is provided on the side wall of the secondary cyclone 11 near the bottom, and the secondary cyclone 11 is in the shape of a cone with a wide top and a narrow bottom. When the air flows, the upper air pressure of the secondary cyclone 11 When the air pressure is greater than the lower part, the dust also flows from top to bottom, which prevents the backflow of dust when the handheld vacuum cleaner is used in changing postures. The dust in the secondary dust gas is driven by the centrifugal force to spin down to the bottom of the cylinder, and enters the space of the ash storage box 2 through the secondary ash throwing port.

The spiral dust and gas separation device 14 includes a spiral wind impeller for generating a secondary cyclone. The spiral wind impeller is provided with a number of downward-sloping blades, and the blades 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 14 also includes an inner ring arranged on the inner ring of the spiral wind impeller, and the side wall corresponding to the air outlet of the spiral wind impeller on the inner ring is provided with several guiding cut surfaces, which restrict the dust flow to the spiral wind. The outer ring of the impeller 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. Among them, the overall air inlet area of the spiral wind impeller 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.

In addition, a dust-shielding cylinder can be provided inside the secondary cyclone 11, and a gap is provided between the dust-shielding cylinder and the secondary cyclone. The spiral rotation is realized in the air separation 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. Among them, the secondary cyclone and the spiral dust-gas separation device can be processed into one structure. 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 molding method will not be specified. limit.

The upper end of the air outlet of the secondary tornado dust gas separation structure also includes a filter device 15, the filter device 15 can be a filter cotton, and the micro-concentration dust gas is finally filtered again by the filter cotton after the air outlet of the fuselage.

When the vacuum cleaner needs to work, the ash storage box 2 is inserted into the first-level dust tank 1, and all components are assembled in place. At this time, the L-shaped pivot arm 4 is rotated to the ash storage box 2 under the buckle of the pressing protrusion 6. At this time, the cover plate 3 is covered to form a seal with the ash storage box 2, the ash storage box 2 is isolated from the first-level dust cylinder 1, and the vacuum cleaner starts to work. When the vacuum cleaner is finished and the dust inside needs to be cleaned, pull out the The ash storage box 2, the pressing force acting on the L-shaped pivot arm 4 is released, and at the same time rotates downward under the action of gravity, the cover plate 3 is opened, and the dust in the ash storage box 2 automatically falls on a In the dust bin 1, the user can perform a one-time ash dumping operation.

The dust cup structure of the vacuum cleaner with multi-stage tornado in the present invention includes a first-stage dust tank 1 and an ash storage box 2, the bottom of the ash storage box 2 is provided with a cover plate 3, and the cover plate 3 is arranged on the side of an L-shaped rotating arm 4 On the end, the other end of the L-shaped rotating arm 4 is fixed on the rotating shaft 5, and the entire L-shaped rotating arm 4 can rotate around the rotating shaft 5, and a pressing protrusion 6 is provided in the first-stage dust cylinder 1 to store When the ash box 2 stretches into the first-stage dust tank 1, press the protrusion 6 against the L-shaped pivot arm 4, so that the cover plate 3 will automatically cover the bottom of the ash storage box 2 along with the L-shaped pivot arm 4, and when the ash storage box 2 is pulled out, the pressing force acting on the L-shaped rotating arm 4 is released, and the cover plate 3 is automatically opened, so that the dust in the ash storage box 2 automatically falls into the ash storage space of the first-stage dust tank 1, Thereby, it is convenient for the user to perform a one-time ash dumping operation. At the same time, the ash storage box 2 has a small structural volume and free movement, which can effectively reduce the occupied space of the fuselage and improve the dust collection efficiency.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. 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 the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a multi-stage cyclone vacuum cleaner dust cup structure, it is characterised in that include one-level dirt cup and ash storage box, Being provided with cover plate bottom ash storage box, cover plate is arranged on the end of a L-type pivoted arm, described L-type pivoted arm another One end is fixing on the rotary shaft, and whole L-type pivoted arm can rotate around described rotary shaft, is provided with in one-level dirt cup One pressing projection, when ash storage box stretches into one-level dirt cup, described pressing projection deducts L-type pivoted arm, makes lid Plate covers bottom ash storage box, when ash storage box is pulled out, acts on being released by pressure on L-type pivoted arm, Cover plate is opened.

2. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 1, it is characterised in that: described storage Ash bin arranges cover plate for sealing circle on the interface of cover plate.

3. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 1, it is characterised in that: described rotation Rotating shaft is fixedly installed on a side end of ash storage box.

4. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 1, it is characterised in that: also include Spiral two grades of tornado dust and gas isolating constructions, described spiral two grades of tornado dust and gas isolating constructions include one Level cyclone cylinder, it is arranged at two grades of cyclone cylinders within described one cyclonic cylinder, is arranged at two grades of cyclone cylinder upper ends Spiral dust and gas segregation apparatus, and be arranged at the whirlwind between described one cyclonic cylinder and two grades of cyclone cylinders Cover, described two grades of cyclone cylinders are arranged at the top of described ash storage box, and the bottom of two grades of cyclone cylinders constitutes described storage The top of ash bin, is provided with space between described two grades of cyclone cylinders and the inwall of described whirlwind cover, and this space is used for Forming two grades of dust and gas after one-level dust and gas separates and separate air channel, described one cyclonic cylinder and whirlwind cover are to entering institute The primary dust and gas stating multi-stage cyclone vacuum cleaner dust cup structure implements the separation of one-level dust and gas, two grades after separation Dust and gas enters two grades of cyclone cylinders and carries out two grades of dust and gas separation.

5. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 4, it is characterised in that: also include Fuselage air inlet, described one cyclonic cylinder includes that one-level gets rid of ash mouth, and dust is entered one-level rotation by fuselage air inlet In air duct, it is achieved one-level dust and gas separates, dust is got rid of ash mouth by one-level under the influence of centrifugal force and enters one-level dirt Cylinder.

6. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 4, it is characterised in that: with ash After the air of dirt is carried out first order dust and gas separation by whirlwind cover, at least some of by two grades of dust and gas separation wind Road guides to spiral dust and gas segregation apparatus, and under the guiding of described spiral dust and gas segregation apparatus, two Level cyclone cylinder inwall is formed to the air-flow rotated at the bottom of cylinder, and the dust in described air-flow is backspin under centrifugal force drives To at the bottom of cylinder and be collected in ash storage box, the air in swirling eddy is extracted out two grades of tornado dust and gas by negative pressure and is divided Away from the air outlet of structure, it is achieved second level dust and gas separates.

7. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 4, it is characterised in that: described two Level cyclone cylinder is tapered.

8. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 4, it is characterised in that: described two The upper end of the air outlet of level tornado dust and gas isolating construction also includes defecator.

9. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 4, it is characterised in that: described spiral shell Rotating dust and gas segregation apparatus includes the spiral wind impeller for producing two grades of whirlwind, and described spiral wind impeller is arranged Having some downward-sloping blades, described blade can retrain the flow direction of dust and gas and dive diagonally downward.

10. multi-stage cyclone vacuum cleaner dust cup structure as claimed in claim 9, it is characterised in that: described spiral shell Rotating dust and gas segregation apparatus also includes the interior annulus being arranged at described spiral wind impeller inner ring, described interior annulus with Being provided with some guiding tangent planes on the sidewall that the air outlet of described spiral wind impeller is corresponding, described guiding tangent plane is about Bundle dust and gas flows to the outer shroud of spiral wind impeller and initially forms rotation status.