CN201036539Y - Dust-collecting filter for electric vacuum cleaner and electric vacuum cleaner using the same - Google Patents

Abstract

The utility model provides a fully-foldable dust collection filter for a foldable electric dust sucker. The dust collection filter for the foldable electric dust is provided with a bag-shaped body which is made of an air permeable and bendable filtering material and nearly diametric; a sucking opening is arranged on the bag-shaped body; and a bearing plate is arranged on the sucking opening and has a dust intake opening. After the lamination and sealing of the external periphery of the bag-shaped body, at least one side of the four sides is folded in a direction towards the inside of the bag-shaped body, with the folded side forming an inwardly depressed folding part(11). The filtering material is also provided with a protruding folding part(13). Hereby, as no tightly rolled lamination part exists, the end part is not restrained as that in the prior art and the center can be fully unfolded, so that the utility model can provide a dust collection filter for a foldable electric dust sucker, with the capacity of the dust collection is enlarged even when the wind amount is reduced and the use is convenient.

Description

Dust collection filter for electric vacuum cleaner and electric vacuum cleaner using same

technical field

The utility model relates to a dust collecting filter for an electric vacuum cleaner, in particular to a technology for improving the extensibility of filter materials processed for the electric vacuum cleaner.

Background technique

In the existing dust-collecting filters for electric vacuum cleaners, the filter material is generally first bonded to each other at the edges of the two ends, and then folded into a cylindrical shape with multi-stage bracing creases on the side, and then the two ends of the cylindrical shape are The opening part is folded back, and finally stick together and seal (an example wherein can refer to Japanese Patent 3274010).

However, in the above-mentioned structure, since the openings at both ends of the gusset creases are folded back and bonded together again, the paper bag is stretched (expanded) by the suction force of the electric fan when it is installed in the body of the vacuum cleaner. ), the following problem occurs. That is, although the central portion can be fully stretched, the gusset creases at both end portions cannot be fully stretched.

Utility model content

The utility model aims to solve the above problems, and its purpose is to provide a dust collecting filter for electric vacuum cleaner and an electric vacuum cleaner using the dust collecting filter.

In order to solve the above-mentioned existing problems, the dust collection filter for electric vacuum cleaners of the present utility model is provided with: a substantially quadrangular bag-shaped body formed of an air-permeable and bendable filter material; A suction port on the shape body; and a support plate mounted on the suction port and having a dust suction port. After the outer peripheral edge of the bag-shaped body is pasted and sealed, at least one of its four sides is folded inwardly, and the folded side becomes an inner concave fold, and an upper convex shape is set in the filter material. folding department. In this way, since there is no rolled-up adhesive part, the end is not restricted as in the prior art, and the central part can be fully expanded as well, so it can provide not only the dust collection capacity can be increased, but also the air volume drop can be improved. , and easy to use electric vacuum cleaner dust filter.

The technical effect that the utility model produces is as follows. If the utility model is adopted, it is possible to provide a dust-collecting filter for an electric vacuum cleaner which not only can increase the dust-collecting capacity, but also can improve the air volume drop and is easy to use.

The specific embodiment of the utility model is summarized as follows. The dust collection filter for an electric vacuum cleaner in the first proposal of the present utility model includes: a substantially quadrangular bag-shaped body formed of an air-permeable and bendable filter material; a suction port provided on the bag-shaped body; and a support plate installed on the suction port and having a dust suction port, after the edges of the bag-shaped body are bonded and sealed, at least one of its four sides is folded inwardly, and the said bag-shaped body is The folded edges form concave folds and form convex folds in the filter material. In this way, since there is no rolled-up adhesive part, the end is not restricted as in the prior art, and the central part can be fully expanded as well, so it can provide not only the dust collection capacity can be increased, but also the air volume drop can be improved. , Easy to use dust filter for electric vacuum cleaner.

The dust collection filter for an electric vacuum cleaner according to the second aspect is characterized in that it includes: a substantially quadrangular bag-shaped body formed of an air-permeable and bendable filter material, and a suction port provided on the bag-shaped body , and a support plate installed on the suction port and having a dust suction port, after the edges of the bag-shaped body are pasted and sealed, at least one of its four sides is folded toward the inside, and the The folded edge forms an inner concave fold, and forms an outer convex fold in the filter material; at the same time, the above-mentioned folded edge is also folded back, and the vertices on both sides of the folded edge are set to the bag-shaped body and folded. The outermost part of the back is the vicinity of the convex folded part. Like this, because there is not the adhesive part that is rolled up tightly, the end is not restricted as in the prior art, and the central part can be fully expanded as well, so not only can the dust collection capacity be increased, but also the air volume drop can be improved. In addition, since the top is not folded, it is not only easy to unfold, but also has a larger dust collection capacity, and the air volume drop can be further improved.

The dust collection filter for an electric vacuum cleaner according to the third aspect includes: in a state where two sets of air-permeable and bendable substantially quadrangular filter materials face each other, at least 3 of the four sides of the substantially quadrangular shape A bag-shaped body formed by ultrasonic welding at two positions; a suction port arranged on the bag-shaped body; and a support plate installed on the suction port and having a dust suction port, the four sides of the bag-shaped body At least one side of the folded side is folded inward, and the folded side becomes a concave folded part, and an upper convex folded part is set in the filter material; at the same time, the above-mentioned folded side is also folded back, and the folded side The vertices on both sides are set to the vicinity of the outermost part of the folded bag-shaped body, that is, the outwardly convex folded part. Like this, because there is not the adhesive part that is rolled up tightly, the end is not restricted as in the prior art, and the central part can be fully expanded as well, so not only can the dust collection capacity be increased, but also the air volume drop can be improved. In addition, since the top is not folded, it is not only easy to unfold, but also has a larger dust collection capacity, and the air volume drop can be further improved.

A fourth aspect is characterized in that at least one vertex of the substantially quadrangular shape is corner-cut. In this way, the unfolding of the apex portion can be improved, and the folding work can be performed more easily.

A fifth aspect is characterized in that the filter material is made of an air-permeable and flexible resin non-woven fabric. Since the non-woven fabric is softer and easier to unfold than the paper in the prior art, its unfoldability can be further improved.

The sixth solution is an electric vacuum cleaner, which is provided with a dust collection room, and the dust collection filter for an electric vacuum cleaner according to any one of claims 1-3 is placed in the dust collection room. Due to the adoption of the dust collection filter in the utility model, the dust collection capacity and air volume reduction of the vacuum cleaner can be easily improved.

Description of drawings

Fig. 1 is the flattened front view of the dust collecting filter for the electric vacuum cleaner in Embodiment 1 of the present utility model,

Fig. 2 is a schematic diagram of the folded state of the dust collection filter,

Fig. 3 is A-A' sectional view of Fig. 2,

Fig. 4 is a detailed cross-sectional view of the filter material in the dust filter,

Fig. 5 is a perspective view of an electric vacuum cleaner using the above-mentioned dust collection filter,

Fig. 6 is a flattened front view of the dust collection filter for the electric vacuum cleaner in Embodiment 2 of the present utility model,

Fig. 7 is a schematic diagram of the folded state of the dust collection filter.

In the above drawings, 3 and 3' are dust collection filters, 7 is an ultrasonic welding part, 8 and 8' are bag-shaped bodies, 9 is a suction port, 10 is a support plate, 11 and 11' are concave folded parts, 12 is an apex, and 13 is an outward convex fold.

Detailed ways

Some embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, it should be pointed out that such an embodiment does not limit the utility model.

(Example 1)

First, the first embodiment of the present utility model will be described using FIGS. 1 to 5 .

Fig. 1 is the flattened front view of the dust collection filter for the electric vacuum cleaner in the first embodiment, Fig. 2 is a schematic diagram of the folded state of the dust collection filter, Fig. 3 is the AA' sectional view of Fig. 2, Fig. 4 is a detailed sectional view of the filter material in the dust collection filter, and FIG. 5 is a perspective view of an electric vacuum cleaner using the dust collection filter. As shown in Figures 1 to 5, the body 1 is provided with an electric fan (not shown) for generating dust suction airflow, and the upstream side of the electric fan (in the direction of dust suction airflow) is provided with a The basket body 4 of the dust filter 3 and the dust collection chamber 5 for loading the basket body 4 . A machine cover 14 is arranged above the dust collecting chamber 5 , and a handle part 6 for grasping when taking out the basket body 4 is also arranged on the basket body 4 .

The dust collection filter will be described in detail below.

The dust collecting filter 3 is provided with: a bag-shaped body 8 forming a bag shape, a suction port 9 provided on the bag-shaped body 8, and a support plate 10 mounted on the suction port 9 and having a dust suction port. The configuration of the pouch 8 is as follows. Three layers of air-permeable and flexible resin non-woven fabrics are stacked together to form a roughly square filter material. When two such filter materials face each other, the ultrasonic waves formed by the four sides around the filter material The welding part 7 is bonded and sealed by ultrasonic welding. In the above-mentioned three-layer resin nonwoven fabric, the outside is (for example) a nonwoven fabric 3a with a weight per unit area of 42±2g/m ² and a thickness of 0.24±0.04mm formed by spunbonding of oriented polypropylene resin , the middle layer is a non-woven fabric 3b with a weight per unit area of 40±4g/m ² and a thickness of 0.2±0.02mm formed by melt extrusion of polypropylene resin, and the inner layer is made of oriented polypropylene resin through thermal bonding The formed nonwoven fabric 3c has a weight per unit area of 50±5 g/m ² and a thickness of 1.5±0.5 mm. The bag-shaped body 8 is provided with a concave folded portion 11 formed by stacking the upper and lower ultrasonic welded parts 7 toward the suction port 9, and each apex 12 of the ultrasonic welded part 7 on the 4 sides is further folded, and is set to In the folded state, it is in the vicinity of the outermost convex folded portion 13 .

The operation and effect of the electric vacuum cleaner having the above-mentioned constitution will be described below.

When the vacuum cleaner body 1 is working, the electric fan rotates to generate a dust suction airflow, and the dust is sucked into the dust collection filter 3 through the suction port 9, and is caught and collected by the dust collection filter 3.

After repeated dust suction operations, the dust filter 3 will be filled with dust. When taking out the dust collection filter 3, you can grasp the handle part 6 with your hands, pull the dust collection filter 3 out of the vacuum cleaner body 1, and then directly throw away the dust collection filter 3.

After adopting the dust collection filter of this embodiment, since the adhesive parts will not be rolled tightly together, the stretching of the end portion will not be restricted as in the prior art, so that the end portion can be as fully as the central portion. spread out. In this way, not only the dust collection capacity will be increased, but also the situation of air volume drop can be improved. In addition, because the apex 12 is not folded, it is easy to unfold, so the dust collection capacity can be further increased, and the situation of air volume drop can be improved.

In addition, even in the case where the apex 12 is also folded like the ultrasonic welded portion 7, since the bonded portion is not tightly rolled together, the end portion can be easily unfolded as compared with the conventional vacuum cleaner. In addition, the resin non-woven fabric located on the innermost side has the thickest thickness and is composed of coarse non-woven fabric with a lower density, so it can not only capture coarse dust, but also collect dust from smaller dust, achieving three-dimensional collection dust, so that the flow path can be secured and the air volume can be prevented from dropping. The resin non-woven fabric in the middle is the thinnest and densest non-woven fabric used to capture/collect fine dust. This non-woven fabric is made of fibers with a fine diameter, which can form a large number of flow paths, and has a structure that is less likely to be clogged by fine dust.

The basket body 4 is provided with a plurality of openings so that an air flow path can also be ensured. Combined with the above-mentioned flow path structure of the non-woven filter material, the air volume drop phenomenon can be further improved.

In addition, although in this embodiment, two pieces of approximately square filter materials are superimposed and ultrasonically welded on the four sides, it is also possible to fold one piece of filter material in half and overlap each other, and then perform ultrasonic welding on three sides. Ultrasonic welding is used to bond and seal the edges to form a bag-like body, which has the advantage of reducing the number of processes. In addition, in the process of bonding and sealing, even if other methods such as thermal welding and high-frequency welding are used, the same effect can be produced.

(Example 2)

The second embodiment of the present utility model is described below with reference to Fig. 6 and Fig. 7 .

Fig. 6 is a front view of the dust collecting filter for an electric vacuum cleaner in the second embodiment in a flattened state, and Fig. 7 is a schematic view (partially cut) of the dust collecting filter in a folded state.

In the dust collection filter 3' shown in Fig. 6, be provided with the bag-shaped body 8 ' that constitutes bag shape, be located at the suction inlet 9 on the bag-shaped body 8 ', and be installed on the suction inlet 9 and be provided with dust suction The support plate 10 of the mouth. The structure of the bag-shaped body 8' is as follows: 3 layers of breathable and flexible resin non-woven fabrics are overlapped together to roughly form a filter material with a cut surface on the 4 vertices of a square; Opposed to each other, the ultrasonic welding part 7 on the edge of the filter material is ultrasonically welded to make it bonded and sealed. In addition, as shown in FIG. 7 , a concave folded portion formed by folding the upper and lower ultrasonic welded portions 7 toward the suction port 9 is provided on the bag-shaped body 8'.

After adopting the above-mentioned constitution, compared with the situation without the cutting surface, since the corner portion shown in FIG. It is easy to pass through, and the expandability can also be improved. Moreover, after the cutting surface is provided, it is not necessary to fold to the deepest point when folding, so the efficiency of the folding operation can also be improved.

To sum up, in the dust collection filter for electric vacuum cleaner of the present utility model and the electric vacuum cleaner using it, the dust collection bag can be fully unfolded, so that the dust collection capacity can be increased, the degree of air volume drop can be improved, and the convenience of use can be improved. Therefore, it is especially suitable for various electric vacuum cleaners such as household and professional use.

Claims (6)

1. dust-collecting filter for electrical cleaner is characterized in that comprising:

Roughly be dimetric pocket by what the filtering material with aeration and flexible formed;

Be located at the suction inlet on the described pocket; With

Be installed on the described suction inlet and have the support plate of dust suction inlet,

Described pocket is after the edge is fitted, sealed, and at least 1 limit in its 4 limits folds towards pocket inside, and the described limit that is folded forms the inner concavity folding part, forms the outer gibbosity folding part in filtering material.

2. dust-collecting filter for electrical cleaner is characterized in that comprising:

Roughly be dimetric pocket by what the filtering material with aeration and flexible formed,

Be located on the described pocket suction inlet and

Be installed on the described suction inlet and have the support plate of dust suction inlet,

Described pocket is after the edge is fitted, sealed, and at least 1 limit in its 4 limits folds towards pocket inside, and the described limit that is folded forms the inner concavity folding part, forms the outer gibbosity folding part in filtering material; Simultaneously also returned by reflexed in the above-mentioned limit that is folded, and the outermost sidepiece after being set to described pocket and folding by the summit, both sides of tuck-in selvage is near the outer gibbosity folding part.

3. dust-collecting filter for electrical cleaner is characterized in that comprising:

2 groups have aeration and flexible roughly be dimetric filtering material be under the opposed state, to being roughly that ultrasonic bonding is carried out at least 3 positions in dimetric four limits and the pocket that forms;

Be located at the suction inlet on the described pocket; With

Be installed on the described suction inlet and have the support plate of dust suction inlet,

At least 1 limit in 4 limits of described pocket is folding to the inside, and the described limit that is folded becomes the inner concavity folding part, and outer gibbosity folding part on being provided with in filtering material; Simultaneously, the above-mentioned limit reflexed that is folded, the outermost sidepiece after the summit, both sides that is folded the limit is set to described pocket and folds be the outer gibbosity folding part near.

4. the dust-collecting filter for electrical cleaner described in claim 1 is characterized in that: the summit, at least 1 place that roughly is in the quadrangle is carried out the bight cutting.

5. the dust-collecting filter for electrical cleaner described in each of claim 1～3, it is characterized in that: described filtering material is made of the resin nonwoven with aeration and flexible.

6. an electric dust collector is characterized in that wherein being provided with dust storage chamber, lays the dust-collecting filter for electrical cleaner described in each of claim 1～3 in the described dust storage chamber.

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