CN2684749Y - Electric suction cleaner - Google Patents

Abstract

The electric vacuum cleaner of the utility model comprises: an electric blower fan (6) for generating dust-absorbing airflow; a plurality of centrifugal separation units (7) for separating dust from the dust-absorbing airflow; 7) The suction port (9) on the upstream side of the suction. The dust suction air flow flowing in from the suction port (9) flows into the plurality of centrifugal separation units respectively after being divided. By arranging a plurality of centrifugal separation units (7), the dust collection performance will be improved, and at the same time, compared with the case where only one large centrifugal separation unit with the same dust collection performance is provided, the body of the electric vacuum cleaner can be miniaturized.

Description

electric vacuum cleaner

technical field

The utility model relates to a general household electric vacuum cleaner, and more specifically relates to the improvement of its convenience in use.

technical background

Existing electric vacuum cleaners of this kind are generally as shown in Figures 18 and 19 .

In the accompanying drawings, reference number 1 is the main body of the electric vacuum cleaner, which is provided with an electric fan (not shown) for attracting dust inside, and communicates with the suction head 2 for inhaling dust; 3 is a dust collecting part, The upper part is a centrifugal separation unit 3a for separating the inhaled dust and dust suction airflow, and the lower part is a dust storage unit 3b for storing the dust separated from the centrifugal separation unit 3a. In addition, the dust collecting member 3 can be freely attached/detached in the main body 1 .

When the above-mentioned electric vacuum cleaner is working, the dust sucked from the suction head 2 together with the dust suction airflow is separated from the dust suction airflow in the centrifugal separation unit 3a. Dust is directly stored in the dust storage unit 3b for storing dust, and the dust suction airflow is sucked into the electric fan from the dust collecting part 3 after passing through the filter 3c.

In addition, both the centrifugal separation unit 3a and the dust storage unit 3b are cylindrical in shape with the central axis in the longitudinal direction approximately in the vertical direction (for example, refer to Japanese Patent Laid-Open No. 5-176871).

However, in the configuration of the above-mentioned conventional electric vacuum cleaner, there are the following disadvantages. That is, if want to improve dust collecting performance, be used for separating the centrifugal separation unit 3a of dust and dust suction airflow and the size of the dust storage unit 3b of accumulating dust just needs to increase, but like this, the dust collector main body will also increase in size.

Utility model content

The utility model aims to solve the above problems, and its purpose is to provide a dust-collecting device that can reduce the size of the dust-collecting part including the centrifugal separation unit and the dust storage unit without reducing the dust-collecting performance, and can improve the convenience of use. electric vacuum cleaner.

In order to achieve the above-mentioned purpose, the electric vacuum cleaner of the present utility model includes: an electric fan for generating dust-absorbing airflow; a plurality of centrifugal separation units for separating dust from the dust-absorbing airflow; and a suction upstream of the centrifugal separation unit Side suction port. Since the dust suction airflow flowing into the suction port flows into a plurality of centrifugal separation units after being split, the centrifugal separation units must be roughly shaped into a cylinder or a cone for centrifugal dust collection. If only one centrifugal separation unit is provided, the size of the centrifugal separation unit must be increased to improve the dust collection performance, and thus the main body of the vacuum cleaner will also be enlarged. However, in the above structure of the present utility model, since a plurality of centrifugal separation units are provided, the degree of freedom of configuration can be increased, and the body of the electric vacuum cleaner can be miniaturized without reducing the dust collection performance.

Description of drawings

Fig. 1 is a side sectional view of the vacuum cleaner main body of the electric vacuum cleaner in the first embodiment of the present utility model,

Figure 2 is a side sectional view of the main body of the vacuum cleaner,

Figure 3 is a side view of the dust collecting part of the main body of the vacuum cleaner,

Figure 4 is a front view of the dust collection component,

Fig. 5 is a top sectional view of the dust collecting part,

Fig. 6 is a rear view appearance view of the dust collecting part (when holding the handle),

Fig. 7 is a side sectional view of the dust collecting part,

Figure 8 shows a side cross-sectional view of another example of a dust collection component,

Figure 9 is a side view of the dust collection component,

Fig. 10 is a side sectional view of the dust collecting part (when the cover is opened),

Fig. 11 is a partial structural sectional view of the main body of the vacuum cleaner of the electric vacuum cleaner in the second embodiment of the present invention,

Fig. 12 shows a partial structural sectional view of the dust collecting part in the main body of the electric vacuum cleaner,

Fig. 13 is a partial structural sectional view of the main body of the electric vacuum cleaner,

Fig. 14 is a partial structural sectional view of the dust collecting part,

Fig. 15 is a partial structural sectional view of the dust collection component,

Fig. 16 shows a partial structural sectional view of another dust collection component,

Fig. 17 is a partial structural sectional view of the dust collection component,

Fig. 18 is an appearance diagram of an existing electric vacuum cleaner,

Fig. 19 is a side sectional view of a dust collecting unit in a conventional electric vacuum cleaner.

Detailed ways

The electric vacuum cleaner in the first embodiment of the present utility model will be described below with reference to FIGS. 1-10 .

In FIGS. 1 to 10 , 4 is the main body of the vacuum cleaner, and 5 is a dust collecting component. The dust collecting unit 5 includes a centrifugal separation unit 7 and a dust storage unit 8 . The centrifugal separation unit 7 communicates with the electric fan 6 that generates the dust-absorbing airflow and the suction head (not shown) that attracts the dust, and is arranged on the upper part of the body to separate the dust from the inhaled dust-absorbing airflow in a centrifugal manner. . The dust storage unit 8 is arranged at the lower part of the machine body for storing the dust separated from the centrifugal separation unit 7 . In the dust collecting member 5 , the central axis in the vertical direction of the centrifugal separation unit 7 is inclined at 30° with respect to the central axis in the vertical direction of the dust storage unit 8 .

In addition, reference numeral 9 is used to make the suction air flow containing dust inhaled from the suction head flow into the suction port in the dust collecting part 5, and 10 is the suction port that will be sucked from the suction port 9 at the entrance of the centrifugal separation unit 7. 1. The dust-suction airflow containing dust is roughly evenly distributed to the distribution ports in the plurality of centrifugal separation units 7 . In addition, 11 is a handle portion for carrying the dust collection unit 5; 12 is a device for covering the opening 13 provided on the upper part of the dust collection unit 5 and being provided with the dust contained in the dust suction airflow sucked into the inside to remove the dust. The dust collecting part cover of the filter unit 14 of filtering; It can be easily operated while holding the handle portion 11 .

In addition, 16 is a pre-filter, and such a pre-filter is arranged between the dust collecting part 5 and the dust collecting part cover 12, and is approximately on the central axis of the vertical direction of the centrifugal separation unit 7, and is roughly cylindrical. , used to store coarse dust. 17 is a protection component located at the bottom of the pre-filter 16, which is roughly disc-shaped.

In addition, 18 is a discharge port provided on the outer peripheral wall of the dust storage unit 8 for discharging dust; 19 is a discharge port cover covering the discharge port 18 . The discharge port cover 19 is mounted on a rotating shaft 20 near the discharge port 18 in a freely rotatable manner, and a fixing member 21 is provided near the rotating shaft 20 to fix the discharge port cover 19 when rotating.

The operation and action of the above vacuum cleaner will be described below.

As shown in Figures 1 and 2, when the electric vacuum cleaner is working, the dust-absorbing airflow sucked by the electric fan 6 passes through the air inlet 9, and is passed through the shunt port on the upstream side of the air suction of the centrifugal separation unit 7. 10 divides the flow substantially equally, and is attracted substantially in a tangential direction to the inner surface of the centrifugal separation unit 7 in this state.

The dust suction airflow containing sucked dust rotates around the inner peripheral wall surface of the centrifugal separation unit 7 , falls downward under the action of its own mass, and accumulates in the dust storage unit 8 arranged below the centrifugal separation unit 7 . Afterwards, the swirling airflow in the centrifugal separation unit 7 rises again after being reflected on the bottom surface of the dust storage unit 8, and the dust that has been stored for a while will also be rolled up again. But under the action of the disk-shaped protection part 17 that is located at the pre-filter 16 bottom, opens downwards and the external dimension is larger than the external dimension of the pre-filter 16, the dust will bounce back again, and it will be stored again. accumulated in the dust storage unit 8. Dust accumulates in the dust accumulating unit 8 by repeating such operations.

After the centrifugal separation unit 7 separates the coarse dust, the dust-absorbing airflow containing the fine dust passes through the pre-filter 16, and then passes through the filter unit 14 arranged inside the dust collecting component cover 12 to filter out the fine dust to clean the dust. The state sucks in the electric blower 6, discharges in the atmosphere again.

In addition, when pouring out the dust accumulated in the dust storage unit 8, the first method is to take the dust collecting part 5 out of the main body, grasp the handle part 11, and press the handle part 11 while holding the handle part 11. The operating part 15 inside it releases the fixing between the dust collecting part 5 and the dust collecting part cover 12, and the dust collecting part cover 12 on the dust collecting part 5 is opened. Then, the dust inside is poured out from the upper opening 13 of the dust collecting member 5 .

The 2nd kind of method is, after the dust collecting part 5 is taken out from the main body, open the outlet cover 19 that is located at the bottom of the dust collecting part 5, and the dust inside the dust storage unit 8 is poured out from the outlet 18.

As shown in Figures 1 to 3, since the centrifugal separation unit 7 in the dust collection unit 5 is inclined at an angle of 30° relative to the dust storage unit 8, it is up and down with the centrifugal separation unit 7 and the dust storage unit 8. The overall height can be compressed compared to the case where the direction is arranged in series. The utility model can be utilized in upright type vacuum cleaners and recumbent type vacuum cleaners. In addition, although the inclination angle is 30° in this embodiment, in fact, as long as the inclination angle is between 5° and 85°, the above effects can be achieved.

In addition, since the centrifugal separation unit 7 is in an inclined state as shown in FIGS. The problem of not being able to effectively send the dust separated from the dust suction airflow into the dust storage unit 8 when it is arranged in a horizontal direction can also be solved.

In addition, the dust accumulated in the dust storage unit 8 will be blown up again under the action of the centrifugal airflow in the centrifugal separation unit 7, so that the dust will not easily adhere to the filter unit 16 in the centrifugal separation unit 7 , so as to prevent the decline of suction power.

In addition, since the centrifugal force generated in the centrifugal separation unit 7 does not have a large difference between the upper part and the lower part of the centrifugal separation unit 7, it is possible to alleviate the reduction of the suction force.

In addition, because the centrifugal separation unit 7 is inclined, the shape of the dust storage unit 8 can be freely set without restriction, and can be set as large as possible, so that the dust collection capacity of the dust collection member 5 is increased, thereby reducing the amount of garbage dumped. The frequency, improve the convenience of use.

By making the shape of the dust collection parts 5 thinner as shown in Figures 4 and 5, and being arranged side by side on the horizontal direction, the overall shape of the dust collection parts 5 can be made into the kind of cross section shown in Figure 4 roughly It can be configured into a rectangle with rounded corners; multiple dust collection components of the same or different sizes can also be configured, and the design range can be expanded. At the same time, the setting can be completed in the case of only a small space.

In order to perform centrifugal dust collection, the shape of the centrifugal separation unit 7 must be substantially cylindrical or conical. And when only one centrifugal separation unit is provided, the size of the centrifugal separation unit must be increased to improve the dust collection performance, but in this way, the main body of the vacuum cleaner will also become larger. In the present utility model, by arranging a plurality of centrifugal separation units 7, the degree of freedom of structural configuration is increased, and the miniaturization of the machine body can be realized without reducing the dust collection performance.

In addition, as shown in Figure 5, the dust suction airflow entering from the suction port 9 is roughly evenly divided into multiple streams, so the dust sucked from the suction head can also be roughly evenly divided into each dust collecting part 5. , so that the amount of garbage accumulated in each dust collecting component 5 is basically the same. Therefore, it is possible to prevent the problem of being unable to grasp the timing of dust removal due to the difference in the accumulation amount in each dust collecting member 5 .

In addition, since the handle portion 11 for carrying the dust collecting part 5 is provided on the dust collecting part 5, the transportation of the dust collecting part 5 will become very easy, and it can prevent dirty hands when taking out the garbage, and the degree of ease of use can be improved. improve.

In addition, since the opening 13 is set on the upper part of the dust collecting part 5, the opening part 13 is provided with a dust collecting part cover 12 covering it, and the inside of the dust collecting part cover 12 is provided with a suction airflow to absorb the suction. The filter unit 14 of filtering, so the fine dust in the suction airflow separated from the centrifugal separation unit 7 will accumulate near the filter unit 14. In this way, problems such as performance degradation and safety performance degradation caused by fine dust adhering to the electric fan 6 can be improved. At the same time, the dust accumulated in the dust collecting part 5 can be easily poured out from the opening 13 after the dust collecting part cover 12 is opened, and the usability can be improved.

In addition, by setting the operation member 15 for fixing or unfixing between the dust collecting member cover 12 and the dust collecting member 5 near the handle portion 11 of the dust collecting member 5, it is held as shown in FIG. In the state of the handle portion 11, the operation member 15 can be manipulated smoothly to open the dust storage unit cover 12. In this way, it is not necessary to perform actions such as changing hands when pouring dust, and the convenience of use can be improved.

In addition, when opening the dust-collecting part cover 12, since the direction of manipulating the operating part 15 is also the direction of grasping the handle part 11, the dust-collecting part 5 can be firmly grasped, and problems such as falling of the dust-collecting part 5 can also be prevented. Before it happens.

As shown in Figures 2 and 7, for those dusts that are not separated in the centrifugal separation unit 7 and allowed to enter the inside of the dust collection component cover 12 and will adhere to the filter unit 14 to reduce its performance, the front Filter 16 stores it. Thus, the phenomenon that dust adheres to the filter 14 and degrades its performance can be suppressed. In addition, by making the shape of the pre-filter 16 approximately cylindrical, the area of the pre-filter 16 can be enlarged, and the performance degradation caused by the accumulation of dust in the pre-filter 16 can also be suppressed.

In addition, as shown in Fig. 2, 7, the bottom of pre-filter 16 is provided with disc-shaped protective member 17, and the surface of this disc-shaped protective member 17 is substantially perpendicular to the center on the vertical direction of centrifugal separation unit 7. axis. After the swirling air flow in the centrifugal separation unit 7 is transported to the lower dust storage unit 8, the swirling air flow is reflected back on the bottom surface of the dust storage unit 8, thereby blowing the dust upward again. But at this time, since the protective member 17 will block the rising airflow in front of the centrifugal separation unit 7, and push the swirling airflow back to the lower part again, the dust will return to the inside of the centrifugal separation unit 7, so it is possible to prevent the occurrence of obstructions for new inhalation. The problem of dust separation.

In addition, another structure of the protection member 17 is shown in FIG. 8 . The lower part of the pre-filter 16 is provided with a disc-shaped protective member 17 whose surface is substantially perpendicular to the central axis of the centrifugal separation unit 7 in the vertical direction. After the swirling airflow in the centrifugal separation unit 7 sends the dust to the lower dust storage unit 8, the swirling airflow is reflected back on the bottom surface of the dust storage unit 8, thereby blowing the dust upward again. But at this time, because the protective member 17 will block the updraft in front of the centrifugal separation unit 7, and push the swirling airflow back to the lower part again. In the structure shown in FIG. 8 , the surface of the protective member 17 is approximately in the vertical direction with respect to the central axis of the vertical direction of the dust storage unit 8, and the swirling airflow rising along the dust storage unit 8 can pass through the substantially vertical direction. Therefore, the dust will return to the inside of the centrifugal separation unit 7, thereby hindering the separation of newly inhaled dust and other problems.

As shown in Figures 9 and 10, since the outer peripheral wall of the dust storage unit 8 is provided with a discharge port 18 for discharging dust, and is provided with a discharge port cover 19 covering the discharge port 18, as long as the discharge port cover is opened, 19. The dust can be easily poured out from the outlet 18 at the bottom of the dust collecting part 5, and the convenience of use can be improved.

In addition, by providing the discharge port 18 on the rear surface of the dust storage unit 8, even if the discharge port cover 19 is opened, the dust will not be dropped downward, and the user can discharge the dust at an appropriate amount and speed according to his will. Dust poured out. In this way, when the discharge port cover 19 is opened, the dust will immediately fall out, causing the surrounding dust to be scattered, and the convenience of use can be improved.

In addition, although the above-mentioned first embodiment is only a recumbent type electric vacuum cleaner in which the dust collecting parts 5 are arranged vertically, the same effect can be achieved if the utility model is applied to an upright type electric vacuum cleaner.

Next, the electric vacuum cleaner in the 2nd Example of this invention is described using FIGS. 11-17. Here, the same components as those in the above-mentioned first embodiment are given the same symbols, and their descriptions are omitted.

Figures 11 and 13 are partial structural sectional views of the main body of the electric vacuum cleaner in this embodiment, and Figures 12 and 14 to 17 are partial structural sectional views of dust collecting components installed in the main body of the vacuum cleaner.

In the above-mentioned first embodiment, the handle portion is provided on the rear portion of the dust collecting member 5 . In this embodiment, however, the handle portion is provided on the top of the dust collecting component 5 .

In Figures 11 to 17, reference numeral 4 is the main body of the vacuum cleaner which is provided with an electric blower 6 for attracting dust inside, and 5 is connected with a suction head (not shown in the figure) used for sucking dust. 4 is a dust collecting part that can be assembled and disassembled freely, and 30 is a handle part. A fastening component that keeps the dust collecting component 5 in the main body 4 of the vacuum cleaner.

In the non-rotating state of the handle part 30 , the handle protrusion 34 provided on the handle part 30 bears against the fastening part top surface 35 provided on the fastening part 33 to prevent the fastening part 33 from moving. At this time, the claw portion 36 provided on the fastening part 33 hooks the fastening part fixing part 37 provided on the main body 4 of the vacuum cleaner to keep the dust collecting part 5 and the main body 4 of the vacuum cleaner in a fixed state.

When the handle portion 30 rotates, the handle protrusion 34 will break away from the top surface 35 of the fastening part, and the fastening part 33 will rotate with the central axis 38 at the approximate center of the fastening part 33 as the axis. The claw portion 36 on the fastening part 33 will disengage from the fastening part fixing part 37 provided on the main body 4 of the vacuum cleaner, and the fixing between the dust collecting part 5 and the main body 4 of the vacuum cleaner will be released.

In addition, since the length of the fastening member 33 is set to be greater than the length between the central axis 38 and the claw portion 36, even in a state in which it is fixed, at least a step beyond the fastening member fixing member 37 can be produced. elastic deformation.

In addition, reference numeral 39 is a handle portion fixing member that holds the handle portion 30 in a non-rotating state, and prevents the handle portion 30 from turning freely due to accidental impact and vibration.

As shown in FIGS. 16 and 17 , when the handle portion 30 is not rotating, the protruding portion 40 provided inside the handle portion 30 is inserted into the recessed portion 41 provided on the fastening component to prevent the fastening component 33 from moving. In addition, even if the concave-convex relationship here is reversed, the same effect can be achieved. When the handle portion 30 is turned, the protruding portion 42 provided on the inner side of the handle portion 30 will be in contact with the end portion 43 of the fastening part 33, and the fastening part 33 will be rotated forcibly, thereby releasing the dust collecting part. 5 and the fixing between the main body 4 of the vacuum cleaner.

In addition, the dust collecting part 5 is provided with a box-shaped part 44 in the form of covering the fastening part 33, and the vacuum cleaner main body 4 is provided with an inner side of the box-shaped part 44 for the installation state of the dust collecting part 5. The main body box part 45 holding the box part 44 is lower. In addition, the box-shaped member 44 has a structure in which the fastening member 33 comes into contact with the main body box-shaped member 45 before contacting the fastening member fixture 37 of the cleaner main body 4 .

The operation conditions and effects in the above constitution will be described below.

In the normal state, that is, when the handle portion 30 does not rotate, as shown in FIGS. The top surface 35 of the fastening part is in contact, and the movement of the fastening part 33 is prevented; Fix the dust collecting part 5 and the main body 4 of the vacuum cleaner.

When dumping the dust accumulated in the dust collecting part 5, the handle part 30 can be lifted upward. At this time, the handle part 30 will rotate around the rotation shaft 31 as shown in FIG. 13 . When the handle portion 30 is rotated, the handle protrusion 34 will disengage from the fastening member top surface 35 as shown in FIG. When the rotation occurs, the claw 36 provided on the fastening part 33 will disengage from the fastening part fixing part 37 provided on the main body 4 of the vacuum cleaner, so that the fixing between the dust collecting part 5 and the main body 4 of the vacuum cleaner is released. , so that the dust collecting part 5 can be detached from the main body 4 of the vacuum cleaner.

That is, the two operations of releasing the fixation between the dust collecting part 5 and the cleaner main body 4 and pulling out the dust collecting part 5 can be realized by only one action. In addition, since the stopper 32 blocks the handle portion 30 so that it cannot continue to rotate, the tensile strength will be greatly improved compared with the straightened and lifted shape, so that the electric vacuum cleaner is not easily damaged and achieves high reliability. sex.

In addition, since the length of the fastening part 33 is set to be greater than the length between the central shaft 38 and the claw part 36, even if the handle part 30 is not turned, that is, the fastening part 33 is fixed, the dust collection part 5 is installed on the main body 4 of the vacuum cleaner, the fastening part 33 can pass over the step of the fastening part fixing part 37 on the main body 4 of the vacuum cleaner as shown in Figure 15 by virtue of its own elastic deformation, so that the claw part 36 does not The fastening component fixing part 37 can be hooked when a breakage occurs, so that the electric vacuum cleaner can achieve high reliability.

In addition, by providing the handle portion fixing member 39 for fixing the handle portion 30 in a non-rotating state as shown in FIG. Will rotate randomly. In this way, the fixing of the fastening part 33 is released arbitrarily, the dust collecting part 5 falls off from the main body 4 of the vacuum cleaner, the dust is scattered, and problems such as damage to the dust collecting part 5 can also be avoided.

In addition, as shown in Figure 12, since the fastening part 33 is only in the non-rotating state of the handle part 30, that is to say, the handle protrusion 34 provided on the handle part 30 and the fastening part top on the fastening part 33 The point where the surfaces 35 come into contact is fixed, so that the fastening member 33 can be released by turning the handle portion 30 a little. Thus, the locking/unlocking of the dust collecting member 5 can be performed more easily and reliably, and the usability can be improved.

In addition, when the handle portion 30 is not rotating, by inserting the protrusion 40 provided inside the handle portion 30 into the recess 41 provided on the fastening member 33 as shown in FIG. Movement of fastening member 33 . Therefore, if the dust collecting part 5 is to be removed without turning the handle part 30, although the pawl part 36 of the fastening part 33 will slip out of the fastening part fixing part 37 on the main body 4 of the vacuum cleaner that is fastened. However, since the concave portion 41 clamps the two sides of the protruding portion 40, the fastening component 33 cannot rotate. Therefore, the fixation between the dust collecting part 5 and the main body 4 of the vacuum cleaner can be maintained, thereby preventing the dust collecting part 5 from falling off when subjected to unexpected impact and vibration, and improving the convenience of use.

In addition, if the recessed part and the protruding part at these positions are exchanged, the same effect can also be achieved.

In addition, when the handle portion 30 is rotated, the protruding portion 42 provided substantially on the inner side surface of the handle portion 30 will come into contact with the end portion 43 of the fastening member 33 as shown in FIG. The tightening part 33 rotates, so that the fixation between the dust collecting part 5 and the main body 4 of the vacuum cleaner can be completely released. In this way, it is possible to prevent the phenomenon of being stuck when the dust collecting component 5 is detached from the main body 4 of the vacuum cleaner, thereby improving the convenience of use.

Claims (15)

1. an electric dust collector is characterized in that comprising: the electric fan that produces dust-absorbing airflow; Isolate a plurality of centrifugal separation units of dust from described dust-absorbing airflow; Air entry with air-breathing upstream one side that is located at described centrifugal separation unit;

The dust-absorbing airflow that flows into from described air entry flows into respectively in described a plurality of centrifugal separation unit after through shunting.

2. an electric dust collector is characterized in that comprising: the electric fan that produces dust-absorbing airflow; Isolate the centrifugal separation unit of dust from described dust-absorbing airflow; The dust that is stockpiled with the dust that described centrifugal separation unit is separated from dust-absorbing airflow stockpiles the unit,

Described dust stockpiles the unit and is arranged to be skewed with respect to described centrifugal separation unit.

3. electric dust collector as claimed in claim 1 is characterized in that: the air-breathing downstream of air entry is provided with and is used to make dust-absorbing airflow approximate equality ground to flow into the interior diffluence pass of a plurality of centrifugal separation units.

4. electric dust collector as claimed in claim 1 or 2 is characterized in that: be used for the dust that the dust that centrifugal separation unit is separated from dust-absorbing airflow is stockpiled is stockpiled the below that the unit is set at described centrifugal separation unit.

5. electric dust collector as claimed in claim 4 is characterized in that: the roughly top of described centrifugal separation unit is provided with peristome, and described peristome is covered by the dust-collection element lid that has filter unit.

6. electric dust collector as claimed in claim 5, it is characterized in that: comprise in the described dust-collection element that the dust that centrifugal separation unit and the dust that described centrifugal separation unit is separated are stockpiled stockpiles the unit from dust-absorbing airflow, in addition, also be provided with at the handle portion on the described dust-collection element on the described dust-collection element and make between dust-collection element lid and the described dust-collection element and fix and remove fixing functional unit, and state the following structure that just can just can handle described functional unit of state of handle portion for the residence of being in one's hands.

7. electric dust collector as claimed in claim 4 is characterized in that: centrifugal separation unit is provided with roughly cylindrical circular fore filter, and the air-breathing downstream of described fore filter is provided with and suppresses the guard block that dust is upwards waved in the wind.

8. electric dust collector as claimed in claim 7 is characterized in that: described guard block is discoid, and is configured to open state downwards.

9. electric dust collector as claimed in claim 4 is characterized in that: described dust stockpiles the unit and is provided with the discharge flap that is used for discharging the outlet of dust and covers described outlet.

10. electric dust collector as claimed in claim 9 is characterized in that: outlet is located at the rear portion that dust stockpiles the unit.

11. an electric dust collector is characterized in that comprising: inside is provided with the electric dust collector main body of the electric fan that produces dust-absorbing airflow; Be used to capture the dust of suction and the dust-collection element that can on described main body, freely install and remove; Be located at the handle portion that can freely rotate on the described dust-collection element; And be used for described dust-collection element is remained on buckling clamping part on the described main body,

By described handle portion is rotated, make described buckling clamping part fix or remove fixing.

12. electric dust collector as claimed in claim 11 is characterized in that: dust-collection element is provided with the handle portion fixture that is used to maintain described handle portion when handle portion is in nonrotating state.

13. electric dust collector as claimed in claim 11 is characterized in that: buckling clamping part is the structure that just just is fixed when handle portion is nonrotating state.

14. electric dust collector as claimed in claim 13 is characterized in that: a side of handle portion and buckling clamping part is provided with recess, and the opposing party is provided with the protuberance that roughly inserts in the female portion when described handle portion is in nonrotating state.

15. electric dust collector as claimed in claim 11, it is characterized in that: handle portion is provided with jut, and described jut is just at described handle portion and is in rotary state following time just contacted, makes the fixedly compulsory commutation of described buckling clamping part with the end of buckling clamping part structure.

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