CN216825272U - Fixing device for fixing a filter and filter device - Google Patents

Abstract

The application provides a fixing device and filter device for fixing filter. The fixing device comprises a frame and an elastic piece. The frame comprises a stopping part and a limiting groove. The stopping part is arranged at the bottom of the frame, and the filter partially abuts against the stopping part. The limiting groove is arranged on the inner surface of the frame. The elastic piece is inserted into the limiting groove and is pressed against the filter. By such arrangement, the filter can be firmly fixed in the fixing device, and the simple structure of the fixing device can simplify the assembling and disassembling process of the filter, shorten the assembling and disassembling time of the filter and improve the efficiency.

Description

Fixing device for fixing a filter and filter device

Technical Field

The present application relates to the field of air treatment technology, and more particularly, to a fixing device for fixing a filter and a filter device.

Background

The air treatment device plays a role in filtering air by arranging the filtering structure. In order to ensure the filtering effect on the air during the use of the air treatment device, it is often necessary to replace the filter structure with a new one after a period of use. There are generally two ways of replacing the filter structure: side extraction, i.e. extracting the filter structure from the side of the air treatment device and replacing it; or back pumping, i.e. a worker enters the air treatment device from the rear side of the air treatment device and replaces the filter structure. In a large-sized air treatment apparatus, in order to facilitate production of a filter structure and to enable partial replacement of the filter structure, the filter structure is generally provided such that a plurality of small filter modules are adjacent to each other, and if a side-drawing method is employed, the filter module located at the center position cannot be replaced, so that the filter module is generally replaced by a back-drawing method in the large-sized air treatment apparatus. When the filter structure needs to be replaced, a worker only needs to enter the air treatment device from the rear side of the air treatment device, remove the old filter in the filter assembly and install a new filter.

Existing filter assemblies typically provide securing structures at the four corners of the filter assembly that secure the filter in the filter assembly using, for example, screws. Therefore, each filter needs to be installed in the filter frame by at least four screws, so that it takes a long time for a worker to attach and detach the screws when replacing the filter, especially when replacing the filter of a large-sized air treatment device, resulting in low efficiency and productivity.

SUMMERY OF THE UTILITY MODEL

The present application provides a fixing device for fixing a filter and a filter device to solve some or all of the disadvantages of the related art.

One aspect of the present application provides a fixture for securing a filter. The fixing device comprises a frame and an elastic piece. The frame comprises a stopping part and a limiting groove. The stopping part is arranged at the bottom of the frame, and the filter partially abuts against the stopping part. The limiting groove is arranged on the inner surface of the frame. The elastic piece is used for being inserted into the limiting groove and abutting against the filter. The frame can restrict the filter in length and width direction's removal, and the cooperation of backstop portion, spacing groove and elastic component can restrict the filter in the removal of degree of depth direction to make the filter fix in fixing device.

Furthermore, the elastic piece is a spring piece which comprises a first end and a folding part connected with the first end; the first end is inserted into the limiting groove, and the folding part is pressed against the filter. The simple structure of the elastic sheet is convenient to use, and meanwhile, the processing is convenient, so that the production cost is reduced.

Furthermore, the elastic sheet further comprises a second end, the second end is connected to the other end of the folded part, which is connected with the first end, and the second end is used for being inserted between the inner surface of the frame and the filter, so that the elastic sheet is not easy to fall off after being installed and can be stably pressed against the filter.

Further, the frame comprises an opening part, and the limiting groove is arranged close to the opening part, so that the fixing device can be used for fixing filters with different thickness sizes, and the application range of the fixing device is expanded.

Further, the number of the limiting grooves is at least two, the limiting grooves are respectively arranged on the inner surfaces of two opposite sides of the frame, and the filter can be fixed while the number of the limiting grooves is reduced.

Further, the limiting grooves are arranged to be staggered with each other, so that when the plurality of frames are arranged adjacent to each other, the parts assembled in the limiting grooves and the parts assembled in the limiting grooves of the adjacent frames can be prevented from interfering with each other, and inconvenience in assembly can be prevented.

Further, the range of the width of shell fragment is 20 to 30mm, makes the shell fragment can provide moderate resilience force when guaranteeing to use the comfort.

Further, the folded part comprises a first side part and a second side part, the included angle of the first side part and the included angle of the second side part range from 30 degrees to 45 degrees, the service life of the elastic sheet is guaranteed, and meanwhile the elastic sheet can provide moderate resilience force.

Further, the width of shell fragment is 20mm, the shell fragment angle is 45 degrees, makes the shell fragment can provide and uses enough and moderate resilience force of comfort, and the consumptive material is less simultaneously, life is longer.

Another aspect of the present disclosure provides a filter device including a fixture, and a filter mounted in the fixture.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic view of one embodiment of a frame of a fixture of the present application;

FIG. 2 is a schematic view of an embodiment of a spring plate of the fastening device of the present application;

FIG. 3 is a schematic cross-sectional view of a filter mounted in a fixture according to the present application;

fig. 4 is an enlarged detail view of the dotted circle portion of fig. 3.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. The word "plurality" or "a number" and the like mean two or more. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, whether direct or indirect. The term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the fixing device 100 includes a frame 110 and a resilient sheet 120. The filter 200 can be placed in the frame 110, and the elastic pieces 120 are engaged with the stopper grooves 112 of the frame 110, thereby fixing the filter 200 in the frame 110. The present application is further described below with reference to the accompanying drawings and examples.

For ease of understanding, reference directions are set forth in the drawings and the following description. The first direction X is a length direction of the frame 110, the second direction Y is a width direction of the frame 110, and the third direction Z is a depth direction of the frame 110.

With particular reference to fig. 1 and 3, the frame 110 comprises two sides extending along the first direction X and two sides extending along the second direction Y, wherein each side comprises an inner surface 113. The frame 110 may be provided in a hollow structure in the third direction Z for accommodating the filter 200. When the filter 200 is mounted in the frame 110, the cross-sectional shape of the frame 110 in the third direction Z is the same as the cross-sectional shape of the filter 200 in the third direction Z; and the cross-sectional dimension of the frame 110 in the third direction Z is matched with the cross-sectional dimension of the filter 200 in the third direction Z, so that the inner surface 113 of the frame 110 is tightly matched with the filter 200, air is prevented from passing through a gap between the inner surface 113 of the frame 110 and the filter 200, and the air filtering quality is ensured. The frame 110 of the illustrated embodiment includes four sides and is square in cross-sectional shape, and thus may correspond to the filter 200 having a square cross-sectional shape. Other cross-sectional shapes of the frame 110 and the number of sides are also contemplated and the application is not limited.

The frame 110 includes a stopper 111. The stopper 111 is disposed on an inner surface 113 of the frame 110. Preferably, the stopping portion 111 is disposed on one side of the frame 110 in the third direction Z (referred to as a bottom of the frame 110 herein, and a side opposite to the bottom of the frame 110 in the third direction Z is an opening), so that the filter 200 can partially abut against the stopping portion 111 when entering the frame 110 from the opening along the third direction Z, and the filter 200 is prevented from continuously leaving the frame 110 from the bottom along the third direction Z after entering the frame 110. Of course, the stopping portion 111 may not be disposed at the bottom of the frame 110, for example, may be disposed anywhere on the inner surface 113 of the frame 110, and the application is not limited thereto.

Preferably, the stopper portion 111 extends toward the inside of the frame 110 perpendicular to the inner surface 113 of the frame 110, so that a contact area of the filter 200 with the stopper portion 111 is increased, the filter 200 is more firmly abutted against the stopper portion 111, and the possibility of air passing through a gap between the filter 200 and the stopper portion 111 can be reduced.

It should be understood that the stops 111 in fig. 1 are shown as four and extend continuously all along the length of the frame 110 in the first direction X and the second direction Y, but this should be considered as exemplary and not limiting. In other embodiments, the stopping portion 111 may also extend discontinuously, or have another number of stopping portions 111, as long as the stopping portions 111 can prevent the filter 200 from entering the frame 110 and then continuing to leave the frame 110 in the third direction Z.

Preferably, the stopping portion 111 can be integrally formed with the frame 110, which simplifies the processing steps and improves the structural strength of the stopping portion 111. Indeed, the stopping portion 111 may not be integrally formed with the frame 110, and the application is not limited thereto.

The frame 110 includes a retaining groove 112. The stopper groove 112 is provided on an inner surface 113 of the frame 110. In some embodiments, the limiting groove 112 is disposed to protrude from the inner surface 113 of the frame 110 and has an opening disposed toward the stopping portion 111. In some embodiments, the limiting groove 112 may not protrude from the inner surface 113 of the frame 110, for example, the limiting groove may be a groove directly machined on the inner surface 113 of the frame 110, which is not limited in the present application.

Preferably, the stopper groove 112 is integrally formed with the frame 110, thereby improving the structural strength of the stopper groove 112.

Preferably, the stopper groove 112 is provided near the opening portion of the frame 110 so that the fixing device 100 can be used to fix filters 200 having different thickness dimensions, expanding the applicable range of the fixing device 100.

In some embodiments, the limiting groove 112 is provided with one side closed and the other side opened toward the bottom of the frame 110, so that the components installed in the limiting groove 112 do not protrude from the limiting groove 112, the components installed in the limiting groove 112 are prevented from accidentally scratching workers, and the safety and the aesthetic property of the frame 110 are improved. However, for convenience of processing, the limiting groove 112 may be provided with openings on both sides, and the application is not limited thereto.

It should be understood that the frame 110 shown in fig. 1 is provided with four retaining grooves 112, and the retaining grooves 112 are provided two by two on the opposite inner surfaces 113, but this should be regarded as exemplary and not limiting. Other numbers of retention slots 112 and other arrangements are also contemplated and are not intended to be limiting. In other embodiments, two retaining grooves 112 may be provided on the inner surfaces 113 on opposite sides, respectively, in which embodiment the number of retaining grooves 112 is reduced but sufficient to hold the filter 200 in place.

Preferably, the position-limiting grooves 112 are arranged in a staggered arrangement on two sides. Wherein, both sides stagger and arrange and do: the spacing grooves 112 disposed on the opposing inner surfaces 113 are offset from one another, rather than symmetrically. Taking the embodiment shown in fig. 1 as an example, when the limiting grooves 112 on the inner surfaces 113 on two opposite sides are projected on a plane perpendicular to the first direction X (for example, the inner surfaces 113 on either side of the frame 110 extending along the second direction Y) at the same time, the projected outlines of the limiting grooves 112 on the inner surfaces 113 on two opposite sides do not coincide or partially coincide. When a plurality of frames 110 are disposed adjacent to each other, the staggered disposition of the stopper grooves 112 on the inner surfaces 113 of opposite sides can prevent components mounted in the stopper grooves 112 from interfering with components mounted in the stopper grooves 112 of the adjacent frames 110, causing inconvenience in assembly.

Preferably, the edge of the opening portion of the frame 110 may be bent into a hook shape 114 toward the inside of the frame 110 so that a worker is not injured by the sharp edge of the frame during the replacement of the filter 200, thereby improving the safety of the frame 110.

Referring to fig. 2 to 4, in some embodiments, the elastic sheet 120 may include a first end 121 and a folded portion connected to the first end 121. The folded portion may include a first side portion 123 and a second side portion 124, wherein the first side portion 123 is connected with the first end 121 of the resilient tab 120. When the elastic sheet 120 is used to fix the filter 200 in place, the first end 121 of the elastic sheet 120 is inserted into the limiting groove 112 of the frame 110, and the second side 124 of the folded part is pressed against the surface of the filter on the side close to the opening of the frame 110, so as to prevent the filter 200 from leaving the frame 110 from the opening after entering the frame 110. The fit between the stop 111 and the second side 124 of the fold limits movement of the filter 200 in the third direction Z, and the inner surface 113 of the frame 110 limits movement of the filter 200 in the first direction X and the second direction Y so that the filter is fixed in place. The simple structure of the elastic sheet is convenient to use, and meanwhile, the processing is convenient, so that the production cost is reduced.

Preferably, the resilient tab 120 may comprise a second end 122, wherein the second end 122 is connected with a second side 124 of the fold. In this embodiment, the first end 121 of the elastic piece 120 is inserted into the limiting groove 112 of the frame 110, the second end 122 of the elastic piece 120 is inserted between the inner surface 113 of the frame 110 and the filter 200, and the second side 124 of the folded part is pressed against the surface of the filter on the side close to the opening part of the frame 110, so as to limit the movement of the filter 200 in the third direction Z. The second end 122 of the elastic sheet 120 is arranged so that the elastic sheet 120 is not easy to fall off after being installed in place, and can stably press against the filter 200.

The included angle formed between the first side 123 and the second side 124 of the folded portion of the spring 120 is a spring angle. The elastic sheet is made of a material having elasticity, such as spring steel, 301 stainless steel, or plastic, etc., and the present application is not limited thereto, so that a worker can compress the elastic sheet to change the angle of the elastic sheet. In some embodiments, the second end 122 of the resilient tab 120 is inserted between the filter 200 and the inner surface 113 of the frame 110, and then the resilient tab is compressed and the first end 121 of the resilient tab 120 is inserted into the retaining groove 112, at which time the resilient tab angle and the elasticity of the material of the resilient tab 120 enable the second side portion 124 to press against the surface of the filter 200 and apply a force to the filter 200 in the third direction Z toward the bottom of the frame 110, thereby preventing the filter 200 from moving away from the bottom of the frame 110 in the third direction Z. It should be understood that other methods of mounting the spring 120 are also contemplated, such as, but not limited to, inserting the first end 121 of the spring 120 into the retaining groove 112, compressing the spring angle and inserting the second end 122 of the spring 120 between the filter 200 and the inner surface 113 of the frame 110.

In some embodiments, the spring angle range of the spring in the state of no external force is 30 ° to 45 °. The too small spring plate angle makes the worker easily break the spring plate 120 when using the spring plate 120; and an excessively large spring angle makes it difficult for a worker to compress the spring 120 when using it. This range of spring plate angles ensures that the spring plate 120 can provide a moderate spring back force while the life of the spring plate 120 is maintained. Preferably, the spring angle is 45 °.

In some embodiments, the width 120d of the dome 120 ranges from 20mm to 30 mm. The too small width 120d makes the spring 120 prone to apply too much pressure to the worker's hand; while the excessive width 120d makes it difficult for a worker to compress the elastic sheet 120 when using the elastic sheet. This width 120d range ensures comfort in use while enabling the spring 120 to provide a moderate resilience. Preferably, the width 120d of the elastic piece 120 is 20 mm.

In some embodiments, the elastic sheet 120 has a uniform width 120d, so that the structure is simplified and the processing is convenient. However, in other embodiments, the first end 121, the second end 122, the first side 123 and the second side 124 have different widths from each other, and the application is not limited thereto.

Preferably, the elastic sheet 120 is integrally formed, so that the structural strength of the elastic sheet is higher, and the service life of the elastic sheet is prolonged. However, in other embodiments, the elastic sheet may not be integrally formed, and the application is not limited thereto.

Preferably, the length 124d of the second side portion 124 of the elastic piece 120 pressing against the filter 200 may be about 25mm, so that the area of the second side portion 124 pressing against the filter 200 is large enough to firmly fix the filter 200 without obstructing the filter 200.

Preferably, the length 121d of the first end 121 of the elastic piece 120 may be 5mm, so that the first end 121 of the elastic piece 120 can be easily taken out of the limiting groove 112 or can be easily assembled into the limiting groove 112, the installation and disassembly processes are simplified, and the disassembly and assembly efficiency is improved.

It should be understood that the dimensional values given in the embodiments of the present application should be considered as exemplary and not limiting. Those skilled in the art can design the width 120d, the length 124d of the second side portion 124, the length 121d of the first end 121, and the spring angle for the spring 120 different from those of the above embodiments according to the size of the filter 200 to be fixed, so that the spring 120 can be suitable for fixing filters 200 of different sizes, and the application range of the fixing device 100 is expanded.

Preferably, the angle between the second side 124 of the elastic piece 120 and the second end 122 of the elastic piece 120 is 90 °, so that the second side 124 of the elastic piece 120 can press the filter 200 to the maximum extent, and the elastic piece 120 can fix the filter 200 more firmly.

It should be understood that the embodiment of the present application fixes the filter 200 by the elastic sheet 120 cooperating with the limiting groove 112 of the frame 110, but other forms of elastic members are also conceivable, and the present application is not limited thereto, and may be, for example, an elastic member with a spring, etc.

Further, in some embodiments, a flexible gasket 130 is disposed between the filter 200 and the stopper 111. The flexible gasket 130 can eliminate an error between the filter 200 and the stopper 111, achieve a good sealing effect, prevent air entering through a gap between the inner surface 113 of the frame 110 and the filter 200 from passing through the bottom of the frame 110 from the gap between the filter 200 and the stopper 111, and ensure the quality of air filtration.

The specific embodiments described herein are merely illustrative of the spirit of the application. Those skilled in the art to which the invention relates may effect numerous modifications, additions or substitutions to the specific embodiments described herein, without departing from the spirit or scope of the invention as defined in the accompanying claims.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims (10)

1. A fixing device for fixing a filter (200), characterized in that said fixing device (100) comprises:

a frame (110) comprising:

a stopper part (111) arranged at the bottom of the frame; the filter (200) partially abuts against the stop (111); and

a limiting groove (112), wherein the limiting groove (112) is arranged on the inner surface (113) of the frame (110); and

the elastic piece is inserted into the limiting groove (112) and is pressed against the filter (200).

2. A fixation device as claimed in claim 1, wherein the resilient member is a leaf spring (120), the leaf spring (120) comprising a first end (121) and a fold connected to the first end (121); the first end (121) is inserted into the limiting groove (112), and the folded part is pressed against the filter (200).

3. A fixture according to claim 2, wherein the leaf spring (120) comprises a second end (122), the second end (122) being connected to the other end of the fold at the end where it is connected to the first end (121), the second end (122) being adapted to be inserted between the inner surface (113) of the frame (110) and the filter (200).

4. A fixation device according to claim 1, wherein the frame (110) comprises an open portion, the retaining groove (112) being arranged close to the open portion.

5. A fixation device according to claim 4, wherein the number of the retaining grooves (112) is at least two, which are provided on the inner surfaces (113) of the opposite sides of the frame (110), respectively.

6. A fixation device according to claim 5, wherein the retaining groove (112) is arranged in a staggered arrangement on both sides.

7. A fixation device according to claim 2, wherein the width of the spring (120) is in the range of 20 to 30 mm.

8. The fixation device of claim 2, wherein the fold comprises a first side and a second side, the first side and the second side having an included angle in the range of 30 to 45 degrees.

9. A fixture according to claim 2, wherein the width of the spring (120) is 20mm and the spring angle is 45 degrees.

10. A filter arrangement, characterized in that the filter arrangement comprises a fixture (100) according to any one of claims 1-9, and a filter (200) mounted in the fixture (100).

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