Splicing and expanding dust collector filter screen

Abstract

The utility model provides a dust collector filter screen capable of being spliced and expanded, which relates to the technical field of filter screens and comprises an upper main body and a lower main body, annular splicing blocks with the number capable of being increased or decreased are arranged between the upper body and the lower body. The number of the annular splicing blocks can be increased or decreased, flexible structure expansion of the filter screen of the dust collector can be achieved, and therefore the filter screen of the dust collector can meet the dust collection and cleaning requirements in different environments. According to the dust collector, the content of tiny dust impurities possibly contained in air entering the filter tank subsequently can be reduced to the maximum extent, excessive dust impurities can be effectively prevented from being filtered and intercepted on the outer filter screen sleeve and the inner filter screen sleeve, and therefore the ventilation opening is prevented from being blocked, and the problem that when an existing dust collector is used for cleaning a working face with a large dust amount, the dust collector cannot clean the working face is solved. And the filter screen of the dust collector is blocked by the filtered and intercepted dust impurities in a short time.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter screen technical field, especially a kind of splicing extension dust collector filter screen. BACKGROUND

[0002] One of dust collector accessories, dust collector filter screen, is mainly used for filtering impurities in air to ensure the suction force and cleaning effect of dust collector. However, in actual use scenarios, if the dust collector is used to clean a work surface with a large amount of dust, the dust and impurities filtered and intercepted by the dust collector filter screen will quickly accumulate in a very short time, eventually causing the filter screen to be completely blocked. Once the filter screen is blocked, the normal use of the dust collector will be severely hindered, the suction force will be greatly reduced, and the cleaning effect will also be dramatically decreased. Therefore, the user has to clean the dust collector filter screen every certain period of time. This process is not only complicated, but also greatly affects the cleaning efficiency and brings many troubles and inconveniences to the user. SUMMARY

[0003] The utility model relates to a kind of splicing extension dust collector filter screen, solve the problem that present dust collector is used to clean the work surface with a large amount of dust, dust collector filter screen will be filtered and intercepted in short time Dust and impurities block, so that user needs to clean dust collector filter screen every certain period of time, affect cleaning efficiency.

[0004] The utility model provides a kind of splicing extension dust collector filter screen, specifically includes: upper main body, the upper main body bottom end face adjacent edge portion is annular array shape and is fused with six first buckle members in circular block structure;Lower main body in circular block structure is provided with six first buckle grooves in annular array shape and is opened in lower main body top end face adjacent edge portion;The annular splicing block with number of increase and decrease is provided between the upper main body and lower main body;The annular splicing block bottom end face adjacent edge portion is annular array shape and is fused with six second buckle members, and the annular splicing block top end face adjacent edge portion is annular array shape and is opened with six second buckle grooves;When the upper main body and annular splicing block splicing installation, six first buckle members are respectively buckled with six second buckle grooves and are matched;When the lower main body and annular splicing block splicing installation, six second buckle members are respectively buckled with six first buckle grooves and are matched;When the upper and lower two groups of annular splicing block splicing installation, six second buckle members of the annular splicing block in the upper side are respectively buckled with six second buckle grooves of the annular splicing block in the lower side and are matched.

[0005] Further, the lower body outer peripheral surface is provided with an annular sleeve slot penetrating the bottom end surface, and the annular sleeve slot is sleeved with an outer filter screen sleeve; the lower body top end surface is provided with a filter slot in the form of a circular groove structure in the axial position, and the filter slot inner peripheral surface is sleeved with an inner filter screen sleeve; the filter slot inner peripheral surface is provided with twelve air permeable openings penetrating the annular sleeve slot in the form of an annular array.

[0006] Further, the upper body axial position is provided with an intercepting storage slot penetrating the top end surface and the bottom end surface, the intercepting storage slot is in the form of a circular truncated cone groove structure, and the small diameter end of the intercepting storage slot faces upward; the intercepting storage slot inner peripheral surface adjacent to the bottom opening end position is fixedly bonded with a rubber limiting ring.

[0007] Further, the intercepting storage slot is internally provided with a stainless steel mesh sleeve, the stainless steel mesh sleeve is in the form of a circular truncated cone structure as a whole, and the stainless steel mesh sleeve is in the form of a top opening structure; when the stainless steel mesh sleeve outer peripheral surface is in contact with the intercepting storage slot inner peripheral surface, the stainless steel mesh sleeve top end surface is in the same horizontal plane as the upper body top end surface, at this time, the stainless steel mesh sleeve is located on the upper side of the rubber limiting ring, and the bottom end surface thereof is in contact with the outer peripheral surface of the rubber limiting ring.

[0008] Further, the annular splicing block inner peripheral surface upper half region is fused with a support frame plate in the form of an optimal arc circular frame plate structure, and the annular splicing block inner peripheral surface lower half region is also fused with a support frame plate in the form of an optimal arc circular frame plate structure, the two support frame plates are symmetrically distributed; the top end surface of the support frame plate located on the upper side is fixedly installed with a filter screen layer in the form of an optimal arc circular block structure, and the filter screen layer top end surface is lower than the annular splicing block top end surface; the bottom end surface of the support frame plate located on the lower side is also fixedly installed with a filter screen layer, and the filter screen layer bottom end surface is higher than the annular splicing block bottom end surface.

[0009] The utility model provides a filter screen of dust catcher that can be spliced and expanded, and has the following beneficial effects:

[0010] The number of the annular splicing blocks can be increased or decreased, which can realize flexible structural expansion of the dust catcher filter screen, thereby adapting to dust cleaning requirements in different environments. Through the ingenious arrangement of the upper and lower filter screen layers in the annular splicing block, extremely small dust impurities possibly contained in the air can be efficiently filtered and intercepted. Based on the filtering operation, the air is sequentially filtered by multiple groups of annular splicing blocks, which can maximize the reduction of the content of small dust impurities possibly contained in the air entering the filter slot subsequently. In this way, excessive dust impurities can be effectively filtered and intercepted on the outer filter screen sleeve and the inner filter screen sleeve, thereby preventing the air permeable opening position from being blocked in a short time, ensuring smooth air discharge, and greatly saving time when cleaning a work surface with a large amount of dust by using the dust catcher.

[0011] The present application can realize pre-interception of large solid impurities possibly contained in the air, so as to avoid the solid impurities from impacting the filter screen layer, the outer filter screen cover and the inner filter screen cover made of relatively fragile filter material, and avoid the solid impurities from being damaged, thereby achieving comprehensive protection and effectively ensuring the service life of the filter screen of the dust collector, and bringing long-term and reliable use experience to the user. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0013] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0014] In the drawings:

[0015] Figure 1 A top end axonometric structure schematic diagram of the present application is shown;

[0016] Figure 2 A bottom end axonometric structure schematic diagram of the present application is shown;

[0017] Figure 3 A structure schematic diagram of the present application in a split state is shown;

[0018] Figure 4 A bottom end axonometric structure schematic diagram of the present application in a split state of the upper main body and the stainless steel screen cover is shown;

[0019] Figure 5 A top end axonometric structure schematic diagram of the present application in a split state of the lower main body, the outer filter screen cover and the inner filter screen cover is shown;

[0020] Figure 6 A structure schematic diagram of the present application in a split state of the annular splicing block and the filter screen layer is shown;

[0021] Figure 7 A cross-sectional structure schematic diagram of the present application is shown;

[0022] LIST OF REFERENCE NUMERALS

[0023] 1, upper main body; 101, stainless steel screen cover; 102, first buckle; 103, interception receiving groove; 104, rubber limiting ring;

[0024] 2, lower main body; 201, outer filter screen cover; 202, inner filter screen cover; 203, filter groove; 204, air permeable opening; 205, first buckle groove; 206, annular sleeve groove;

[0025] 3, annular splicing block; 301, second buckle; 302, second buckle slot; 303, support frame plate; 304, filter screen layer. DETAILED DESCRIPTION

[0026] To make the purposes, technical solutions and advantages of the utility model clearer, the technical solutions of the utility model will be described clearly and completely below in combination with the drawings of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment: please refer to Figures 1 to 7 :

[0028] The utility model provides a filter screen of splicing expansion dust collector, include: the upper main body 1, the upper main body 1 bottom end face adjacent edge portion presents annular array and is fused together with six first buckle 102; The lower main body 2 of being equipped with the upper main body 1 below presents circular block structure, and the lower main body 2 top end face adjacent edge portion presents annular array and is commonly provided with six first buckle slot 205; The upper main body 1 and the lower main body 2 between being equipped with the number of annular splicing block 3 that can increase or decrease; Annular splicing block 3 bottom end face adjacent edge portion presents annular array and is fused together with six second buckle 301, and annular splicing block 3 top end face adjacent edge portion presents annular array and is commonly provided with six second buckle slot 302; When the upper main body 1 and annular splicing block 3 splice installation, six first buckle 102 respectively with six second buckle slot 302 buckle joint cooperation; When the lower main body 2 and annular splicing block 3 splice installation, six second buckle 301 respectively with six first buckle slot 205 buckle joint cooperation; When the upper and lower adjacent two groups of annular splicing block 3 splice installation, the six second buckle 301 of the annular splicing block 3 in the upper side is respectively with the six second buckle slot 302 of the annular splicing block 3 in the lower side buckle joint cooperation.

[0029] In the embodiment, the lower main body 2 outer circumferential surface is provided with a through annular sleeve slot 206, and the annular sleeve slot 206 is sleeved with an outer filter screen sleeve 201; The lower main body 2 top end surface is provided with a filter slot 203 in the form of a circular groove structure, and the inner circumferential surface of the filter slot 203 is sleeved with an inner filter screen sleeve 202; The outer filter screen sleeve 201 and the inner filter screen sleeve 202 can be made of non-woven fabric, synthetic fiber and the like; The inner circumferential surface of the filter slot 203 is provided with twelve through gas openings 204 in the form of an annular array.

[0030] In this embodiment, an interception and storage groove 103 is provided at the axial center of the upper body 1, penetrating its top and bottom surfaces. The interception and storage groove 103 has a frustum-shaped structure, with the smaller diameter end of the interception and storage groove 103 facing upwards. A rubber limiting ring 104 is fixedly bonded to the inner circumferential surface of the interception and storage groove 103 adjacent to the bottom opening. A stainless steel mesh sleeve 101 is placed inside the interception and storage groove 103. The stainless steel mesh sleeve 101 has a frustum-shaped structure and a top opening. When the outer circumferential surface of the stainless steel mesh sleeve 101 is in contact with the inner circumferential surface of the interception and storage groove 103, the top surface of the stainless steel mesh sleeve 101 is at the same horizontal plane as the top surface of the upper body 1. At this time, the stainless steel mesh sleeve 101 is located on the upper side of the rubber limiting ring 104, and its bottom surface is in contact with the outer circumferential surface of the rubber limiting ring 104.

[0031] In this embodiment, a support frame plate 303 with a superior arc circular frame structure is fused to the upper half of the inner circumferential surface of the annular splicing block 3, and a support frame plate 303 with a superior arc circular frame structure is also fused to the lower half of the inner circumferential surface of the annular splicing block 3. The two support frame plates 303 are symmetrically distributed. A filter layer 304 with a superior arc circular block structure is fixedly installed on the top surface of the support frame plate 303 located on the upper side. The top surface of the filter layer 304 is lower than the top surface of the annular splicing block 3. A filter layer 304 is also fixedly installed on the bottom surface of the support frame plate 303 located on the lower side. The bottom surface of the filter layer 304 is higher than the bottom surface of the annular splicing block 3. The filter layer 304 can be made of materials such as non-woven fabric or synthetic fiber.

[0032] The working principle of this embodiment:

[0033] First, depending on the environment in which the vacuum cleaner is used, select the appropriate number of ring-shaped interlocking blocks 3 for splicing and installation to expand the vacuum cleaner's filter structure and meet the current vacuuming and cleaning needs. The specific operation is as follows:

[0034] After selecting the appropriate number of ring-shaped splicing blocks 3 according to the application environment, the user first splices and installs the ring-shaped splicing blocks 3. When splicing and installing two adjacent sets of ring-shaped splicing blocks 3, the six second fasteners 301 of the set of ring-shaped splicing blocks 3 on the upper side are respectively engaged with the six second fastener slots 302 of the set of ring-shaped splicing blocks 3 on the lower side to achieve splicing and installation.

[0035] Then, when the uppermost set of annular splicing blocks 3 is spliced ​​and installed with the upper body 1, the six first fasteners 102 are respectively engaged with the six second fastener slots 302 to achieve the splicing and installation of the annular splicing blocks 3 and the upper body 1. When the lowermost set of annular splicing blocks 3 is spliced ​​and installed with the lower body 2, the six second fasteners 301 are respectively engaged with the six first fastener slots 205 to achieve the splicing and installation of the annular splicing blocks 3 and the lower body 2.

[0036] When the present application is applied to a vacuum cleaner, the air sucked in enters through the top opening end of the interception storage groove 103, and the air will first enter the stainless steel mesh sleeve 101. The large solid impurities possibly contained in the air are intercepted by the stainless steel mesh sleeve 101, and the air and the tiny dust impurities penetrate through the mesh holes of the stainless steel mesh sleeve 101. The present application realizes pre-interception of the large solid impurities possibly contained in the air based on the stainless steel mesh sleeve 101, so as to avoid the large solid impurities from being impacted and contacted with the filter screen layer 304, the outer filter screen sleeve 201 and the inner filter screen sleeve 202 which are made of relatively fragile filter materials (such as non-woven fabric, synthetic fiber, etc.), so as to avoid damage caused by impact; further, through the structure design of the interception storage groove 103 and the circular table shape of the stainless steel mesh sleeve 101, the large solid impurities intercepted in the stainless steel mesh sleeve 101 are not easy to be blown out from the opening end of the stainless steel mesh sleeve 101 when they are subsequently impacted by the air;

[0037] The air filtered through the stainless steel mesh sleeve 101 will first contact the filter screen layer 304 located at the uppermost position in the group of annular spliced blocks 3, and the tiny dust impurities possibly contained in the air are filtered and intercepted by the filter screen layer 304. The air penetrating through the filter screen layer 304 will again contact the filter screen layer 304 located at the lowermost position in the group of annular spliced blocks 3, so as to again filter and intercept the tiny dust impurities possibly contained in the air through the filter screen layer 304. Based on the filtering operation, the present application can reduce the content of the tiny dust impurities possibly contained in the air entering the filtering groove 203 subsequently to the maximum through the filtering of the multiple groups of annular spliced blocks 3, so as to avoid too much dust impurities from being filtered and intercepted on the outer filter screen sleeve 201 and the inner filter screen sleeve 202, which causes the blockage of the air permeation opening 204 and affects the air discharge; further, since the filter screen layer 304 adopts the optimal arc block structure, the filter screen layer 304 will not completely block the inner circumferential surface of the annular spliced block 3, which is beneficial to the air flow when the dust impurities filtered by the filter screen layer 304 have been laid on the entire surface of the filter screen layer 304, causing the air flow to pass through the remaining part of the inner circumferential surface of the annular spliced block 3, so as to avoid affecting the air flow and discharge;

[0038] The air filtered through the annular spliced block 3 enters the filtering groove 203 of the lower main body 2, and when it is discharged through the air permeation opening 204, it is again filtered and intercepted by the inner filter screen sleeve 202 and the outer filter screen sleeve 201, so as to ensure the cleaning effect of the vacuum cleaner;

[0039] When disassembled and cleaned later, the upper body 1, the lower body 2 and the annular splicing block 3 can be disassembled and separated in sequence, so that the cleaning treatment is realized individually; when the impurities intercepted in the stainless steel mesh cover 101 are cleaned, the stainless steel mesh cover 101 can be pressed from top to bottom, so that the bottom of the stainless steel mesh cover 101 extrudes the rubber limiting ring 104, so that the rubber limiting ring 104 is separated from the interception storage groove 103, so as to clean the impurities intercepted in the stainless steel mesh cover 101; the outer filter cover 201 and the inner filter cover 202 can be sequentially separated from the annular sleeve groove 206 and the filter groove 203 for individual cleaning; the filter screen layer 304 is placed in the filter screen layer 304, and the two filter screen layers 304 in the exposed state can be cleaned.

[0040] In this article, the following points need attention:

[0041] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0042] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0043] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure.

Claims

1. A splicable extension dust extractor filter, characterised in that, The application relates to a circular block structure filter device. The upper body (1) is circularly arranged with six first buckling members (102) on the adjacent edge portions of the bottom end surface; the lower body (2) is circularly arranged with six first buckling grooves (205) on the adjacent edge portions of the top end surface; the number of annular splicing blocks (3) between the upper body (1) and the lower body (2) can be increased or decreased; the annular splicing block (3) is circularly arranged with six second buckling members (301) on the adjacent edge portions of the bottom end surface and circularly arranged with six second buckling grooves (302) on the adjacent edge portions of the top end surface; when the upper body (1) and the annular splicing block (3) are spliced and installed, the six first buckling members (102) are buckled and matched with the six second buckling grooves (302) respectively; when the lower body (2) and the annular splicing block (3) are spliced and installed, the six second buckling members (301) are buckled and matched with the six first buckling grooves (205) respectively; when the upper and lower two groups of annular splicing blocks (3) are spliced and installed, the six second buckling members (301) of the annular splicing block (3) on the upper side are buckled and matched with the six second buckling grooves (302) of the annular splicing block (3) on the lower side respectively.

2. A filter screen according to claim 1, wherein, The lower body (2) is circularly arranged with an annular sleeve groove (206) penetrating the bottom end surface, and the annular sleeve groove (206) is sleeved with an outer filter screen sleeve (201); the top end surface of the lower body (2) is circularly arranged with a filter groove (203) penetrating the top end surface, and the inner wall of the filter groove (203) is sleeved with an inner filter screen sleeve (202); the inner wall of the filter groove (203) is circularly arranged with twelve air permeation openings (204) penetrating the annular sleeve groove (206).

3. A splicable extension dust cleaner filter according to claim 2, wherein, The upper body (1) is circularly arranged with an intercepting accommodation groove (103) penetrating the top end surface and the bottom end surface, the intercepting accommodation groove (103) is circularly arranged with a rubber limiting ring (104) on the adjacent bottom opening end portions of the inner wall.

4. A joinable extension dust mite filter according to claim 3, wherein, The intercepting accommodation groove (103) is internally arranged with a stainless steel screen sleeve (101), the stainless steel screen sleeve (101) is circularly arranged with a top opening structure; when the outer wall of the stainless steel screen sleeve (101) is in contact with the inner wall of the intercepting accommodation groove (103), the top end surface of the stainless steel screen sleeve (101) is in the same horizontal plane with the top end surface of the upper body (1), at this moment, the stainless steel screen sleeve (101) is located on the upper side of the rubber limiting ring (104), and the bottom end surface of the stainless steel screen sleeve (101) is in contact with the outer wall of the rubber limiting ring (104).

5. A splicable extension dust extractor filter according to claim 4, wherein, The inner circumferential surface of the annular splicing block (3) is welded with a support frame plate (303) in the upper half region, which is in the structure of an arc circle frame plate, and the inner circumferential surface of the annular splicing block (3) is also welded with a support frame plate (303) in the lower half region, which is in the structure of an arc circle frame plate, and the two support frame plates (303) are symmetrically distributed; the top end surface of the support frame plate (303) on the upper side is fixedly installed with a filter screen layer (304) in the structure of an arc circle block, and the top end surface of the filter screen layer (304) is lower than the top end surface of the annular splicing block (3); the bottom end surface of the support frame plate (303) on the lower side is also fixedly installed with a filter screen layer (304), and the bottom end surface of the filter screen layer (304) is higher than the bottom end surface of the annular splicing block (3).

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