Filter screen device for fan

Abstract

The utility model relates to the technical field of fresh air fan filtering, and discloses a filter screen device for a fan, which comprises a shell, a fixing frame is fixedly arranged in the shell, a filter part for filtering air is arranged in the fixing frame, three groups of sliding chutes are formed in the inner side of the fixing frame in an array manner, and the sliding chutes are arranged in the shell. A limiting assembly used for limiting the filtering piece is arranged in the sliding groove, and three guide columns are fixedly installed on one side of the front face of the outer frame in an array mode and correspond to the limiting assembly. The filter part is pushed to slide into the fixing frame to extrude the first slope part, so that the sliding block is driven to slide into the sliding groove until the outer frame moves to the back face of the sliding block, the sliding block is reset to be clamped on the front face of the outer frame to be limited, and then installation can be completed, and the outer frame is rotated to drive the guide column to extrude the second slope part, so that the sliding block can slide into the sliding groove. Therefore, the outer frame is not limited any more, the filtering piece can be conveniently taken out at the moment, and the effect of quick disassembly and assembly is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a new trend machine filter technology field, specifically for a filter screen device for fan. BACKGROUND

[0002] The new trend machine is a kind of high-efficiency air purification equipment, can make indoor air circulation, one part of indoor dirty air is discharged to outdoor, and the other part of outdoor fresh air is input to indoor after sterilization, disinfection, filtration and other measures, so that the room is fresh and clean air every moment.

[0003] The filter screen sealing structure of the new trend machine disclosed in the Chinese patent with publication number CN218565648U includes a shell, a circular ring-shaped fixing frame is arranged on the inner wall of the shell near the air outlet, a ring-shaped groove is arranged on the side of the circular ring-shaped fixing frame near the air outlet, a sealing rubber ring is fixed on the inner side wall of the ring-shaped groove, a guide rail is arranged on the inner wall of the shell between the circular ring-shaped fixing frame and the air outlet, a filter screen is slidably arranged on the guide rail, the filter screen includes a ring-shaped frame, a filter screen body is arranged in the ring-shaped frame, a ring-shaped plug is arranged on the side of the ring-shaped frame near the circular ring-shaped fixing frame, the ring-shaped groove is arranged, the ring-shaped plug is arranged on the filter screen, the two are matched and plugged, the sealing rubber ring is arranged in the ring-shaped groove, the sealing effect is good, in addition, a sealing rubber pad is arranged on the part of the circular ring-shaped fixing frame contacting the filter screen, which improves the sealing effect and reduces noise, the guide groove and the guide rail are arranged, which helps to quickly align the fixing bolt and the threaded hole, and facilitates installation.

[0004] In the implementation of the application, the inventor finds that the above technical solution can improve the sealing effect and reduce noise, but the installation method still relies on bolt fixation, which cannot realize quick disassembly and assembly, and thus it is still troublesome when the filter screen needs to be disassembled, cleaned and replaced because it is blocked. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides the following technical scheme: a filter screen device for fan, including the shell, the inside fixed mounting of the shell has the fixed frame, the inside of the fixed frame is provided with the filter piece of filtering air, the filter piece is composed of the outer frame and filter screen, the outer frame is surrounded in the outside of filter screen, and the outer frame is embedded in the inside of fixed frame, the inside of fixed frame is arrayed and is equipped with three groups of sliding slot, and the sliding slot is provided with the limiting assembly for limiting filter piece, and the front side of outer frame is correspondingly equipped with three guide columns and is fixedly installed with limiting assembly array.

[0006] As optimization, the back side of the fixed frame has a flange, the front side of the flange is fixedly installed with a plurality of spring rods in an array, and the inside of the fixed frame is slidably connected with a circular ring, and the circular ring is fixedly installed at the end of the spring rod.

[0007] As optimization, the side close to the outer frame of the circular ring is glued and bonded with a sealing gasket one, and the outer frame is glued and bonded with a sealing gasket two in close contact with the circular ring, so that the sealing gasket one and the sealing gasket two are tightly bonded by the close contact of the circular ring and the outer frame, thereby improving the sealing performance.

[0008] As optimization, the middle part of the sealing gasket one is provided with an annular groove, the middle part of the sealing gasket two is provided with an annular protrusion, and the annular protrusion is embedded in the annular groove, thereby further improving the sealing performance.

[0009] As optimization, the limiting assembly comprises a sliding block slidably connected in the sliding groove, a compression spring fixedly installed between the sliding block and the bottom wall of the sliding groove, and the back side of the sliding block is a plane.

[0010] As optimization, the front side of the sliding block has an inclined surface part one, and the left and right sides of the sliding block each have an inclined surface part two.

[0011] As optimization, the inner wall of the sliding groove is fixedly installed with a guide rod, and the guide rod penetrates and is inserted into the inside of the sliding block, thereby guiding the sliding block through the guide rod.

[0012] The beneficial effects of the utility model are:

[0013] The filter screen device for the fan is characterized in that the filter element is slid into the fixed frame by pushing, so that the inclined surface part one is extruded, the sliding block is slid into the sliding groove, the sliding block is reset and clamped on the front side of the outer frame for limiting after the outer frame is moved to the back side of the sliding block, the installation is completed, the sliding block is slid into the sliding groove by extruding the inclined surface part two through rotating the outer frame and driving the guide column, thereby no longer limiting the outer frame, the filter element can be conveniently taken out, and the effect of quick disassembly is achieved, and the blocked filter element can be conveniently cleaned or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a filter element installation structure schematic view of the utility model;

[0016] Figure 3 It is a sealing installation structure schematic view of the utility model;

[0017] Figure 4 It is a limiting structure schematic view of the utility model.

[0018] In the figure: 1, the shell; 2, fixed frame; 3, outer frame; 4, filter screen; 5, limiting assembly; 6, flange; 7, spring rod; 8, ring; 9, gasket I; 10, gasket II; 11, slider; 12, compression spring; 13, inclined surface part I; 14, inclined surface part II; 15, guide rod. DETAILED DESCRIPTION

[0019] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-2 A filter screen device for a fan, comprising a shell 1, a fixed frame 2 is fixedly installed inside the shell 1, a filter element for filtering air is arranged inside the fixed frame 2, the filter element is composed of an outer frame 3 and a filter screen 4, the outer frame 3 is wrapped outside the filter screen 4, and the outer frame 3 is embedded in the inside of the fixed frame 2, three groups of sliding grooves are arrayed on the inner side of the fixed frame 2, and a limiting assembly 5 for limiting the filter element is arranged in the sliding grooves, and three guide columns are arrayed and fixedly installed on the front side of the outer frame 3 corresponding to the limiting assembly 5;

[0022] Please refer to Figures 3-4 The back side of the fixed frame 2 has a flange 6, a plurality of spring rods 7 are arrayed and fixedly installed on the front side of the flange 6, a ring 8 is slidingly connected inside the fixed frame 2, and the ring 8 is fixedly installed at the end of the spring rod 7, the spring rod 7 itself will drive the ring 8 to tightly adhere to the outer frame 3 through its elastic force, thereby improving the sealing performance and having a buffering effect;

[0023] Please refer to Figures 3-4The sealing gasket one 9 is glued and bonded to one side of the outer frame 3 close to the ring 8, and the outer frame 3 is glued and bonded to the ring 8, so that the sealing gasket two 10 is glued and bonded to the outer frame 3, and the ring 8 and the outer frame 3 are tightly abutted, so that the sealing gasket one 9 and the sealing gasket two 10 are tightly bonded, and the sealing performance is improved; the middle part of the sealing gasket one 9 is provided with an annular groove, and the middle part of the sealing gasket two 10 is provided with an annular protrusion, and the annular protrusion is embedded in the annular groove, so that the sealing performance is further improved;

[0024] Please refer to Figures 3-4 The limiting assembly 5 comprises a sliding block 11 slidably connected in the sliding groove, and a compression spring 12 is fixedly installed between the sliding block 11 and the bottom wall of the sliding groove. The back side of the sliding block 11 is a flat surface, and the sliding block 11 can be driven out of the sliding groove by the elastic force of the compression spring 12, and then abut against the front side of the outer frame 3, so as to play a limiting role.

[0025] Please refer to Figures 3-4 The front side of the sliding block 11 is provided with a beveled part one 13, and the sliding block 11 is pressed into the sliding groove along the side slope of the beveled part one 13 when the outer frame 3 is installed. Then, when the outer frame 3 moves to the back side of the sliding block 11, the sliding block 11 is reset and clamped on the front side of the outer frame 3 by the compression spring 12, which facilitates the installation and limiting of the filter element. The left and right sides of the sliding block 11 are provided with beveled part two 14, and a guide rod 15 is fixedly installed in the inner wall of the sliding groove and penetrates into the sliding block 11. The guide rod 15 plays a guiding role on the sliding block 11, and the guide rod 15 is pressed against the slope on one side of the beveled part two 14 by rotating the outer frame 3, so as to press the sliding block 11 into the sliding groove. At this time, the outer frame 3 is no longer limited, and the filter element can be easily taken out.

[0026] When installing, first slide the outer frame 3 along the inner wall of the fixed frame 2, so as to press the beveled part one 13, make the sliding block 11 slide into the sliding groove and compress the compression spring 12, until the outer frame 3 moves to the back of the sliding block 11. The sliding block 11 is reset under the action of the compressed compression spring 12, and then clamped on the front side of the outer frame 3 to limit it. At this time, the installation is completed.

[0027] When the outer frame 3 is installed in the fixed frame 2, the ring 8 is pressed, so the spring rod 7 is compressed, and under the action of the elastic force of the spring rod 7, the sealing gasket one 9 is tightly bonded to the sealing gasket two 10, so as to improve the sealing performance, and the annular protrusion on the sealing gasket two 10 is embedded in the annular groove of the sealing gasket one 9, so as to further improve the sealing performance.

[0028] When disassembling, the outer frame 3 is rotated to make the guide post contact and press the inclined surface part two 14, and then the sliding block 11 is slid into the sliding groove, the outer frame 3 is continuously rotated to make the guide post be located below the sliding block 11, at this time, the sliding block 11 is completely in the sliding groove, so the outer frame 3 is no longer limited, and the outer frame 3 can be pulled out.

[0029] In conclusion, the filter screen device for the fan is used to push the filter to slide into the fixed frame 2, the inclined surface part one 13 is pressed, the sliding block 11 is slid into the sliding groove, the outer frame 3 is moved to the back of the sliding block 11, the sliding block 11 is reset and clamped on the front of the outer frame 3 to limit, installation is completed, the outer frame 3 is rotated to make the guide post press the inclined surface part two 14, the sliding block 11 is slid into the sliding groove, the outer frame 3 is no longer limited, at this time, the filter can be conveniently taken out, so that the effect of quick disassembly and assembly is achieved, and the blocked filter can be conveniently cleaned or replaced.

[0030] In the description of the utility model, unless another definite provision and limitation, the term "arrangement", "installation", "connection", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0031] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.

[0032] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the art can be replaced or changed according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and should be covered in the protection scope of the utility model.

Claims

1. A filter device for a fan, comprising a housing (1), characterized in that: A fixing frame (2) is fixedly installed inside the housing (1). An air filter is provided inside the fixing frame (2). The filter consists of an outer frame (3) and a filter screen (4). The outer frame (3) surrounds the outside of the filter screen (4) and is embedded inside the fixing frame (2). Three sets of sliding grooves are arranged in an array on the inner side of the fixing frame (2). A limiting component (5) for limiting the filter is provided in the sliding groove. Three guide posts are fixedly installed on one side of the front of the outer frame (3) corresponding to the array of limiting components (5).

2. The filter device for a fan according to claim 1, characterized in that: The mounting bracket (2) has a flange (6) on one side of its back. Several spring rods (7) are fixedly mounted in an array on one side of the front of the flange (6). A ring (8) is slidably connected inside the mounting bracket (2), and the ring (8) is fixedly mounted on the end of the spring rod (7).

3. The filter device for a fan according to claim 2, characterized in that: A sealing gasket 1 (9) is glued to the side of the ring (8) close to the outer frame (3), and a sealing gasket 2 (10) is glued to the side of the outer frame (3) that is attached to the ring (8).

4. The filter device for a fan according to claim 3, characterized in that: The sealing gasket one (9) has an annular groove in the middle, and the sealing gasket two (10) has an annular protrusion in the middle, and the annular protrusion is embedded in the annular groove.

5. The filter device for a fan according to claim 1, characterized in that: The limiting component (5) includes a slider (11) slidably connected in the groove. A compression spring (12) is fixedly installed between the slider (11) and the bottom wall of the groove. One side of the back of the slider (11) is a plane.

6. The filter device for a fan according to claim 5, characterized in that: The slider (11) has a beveled surface one (13) on one side of its front, and the slider (11) has beveled surfaces two (14) on both its left and right sides.

7. The filter device for a fan according to claim 5, characterized in that: A guide rod (15) is fixedly installed on the inner wall of the groove, and the guide rod (15) is inserted through the slider (11).

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