Replaceable air filter

Abstract

The utility model discloses a replaceable air filter in the field of air filters, which comprises a shell, a mounting shell, a filter element, a retaining net and a connecting mechanism, the mounting shell is fixedly connected to the front side of the shell, the filter element is movably connected to the inside of the shell, and the retaining net is fixedly connected to the mounting shell. According to the replaceable air filter, when the filter element is replaced, the pressing block is pressed, so that the moving blocks at the top and the bottom are far away from each other, the clamping blocks are driven to be far away from each other, the clamping blocks and the clamping grooves are released from clamping connection, the blocking net is pulled to detach the blocking net, and the filter element is pulled out for replacement; and then the pressing block is pressed again, the clamping block is embedded in the clamping groove, the pressing block is loosened, the moving block drives the clamping block to reset, and the clamping block is connected with the clamping groove in a clamped mode, so that fixation through a screw is avoided, time and labor are saved, replacement is convenient, the replacement efficiency is improved, and the situation that the screw slips is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to a replaceable air filter. Background Art

[0002] In order to ensure the cleanliness of the air in the air supply system, an air filter is needed to filter the air. Air filters are generally used to purify the indoor air environment. The filter is installed at the air outlet of the pipe. The filter element in the filter intercepts the dust in the air to achieve air filtration. The filter element needs to be replaced after long-term use.

[0003] After the current filter element is installed into the housing, it is necessary to use screws to install the blocking net to block and fix the filter element. When replacing, the screws need to be repeatedly disassembled and assembled, which is not conducive to replacement and reduces the replacement efficiency. It is also easy to cause the screws to strip, affecting the installation. For this reason, we propose a replaceable air filter. Utility Model Content

[0004] The purpose of the utility model is to provide a replaceable air filter to solve the problem raised in the above background technology that when replacing the filter element, the current filter needs to use screws to disassemble and assemble the baffle net. When replacing the filter element, the screws need to be repeatedly disassembled and assembled, which is not conducive to replacement and reduces the replacement efficiency. It is also easy to cause the screws to slip, affecting the installation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a replaceable air filter, comprising a shell, a mounting shell, a filter element, a baffle and a connecting mechanism, wherein the mounting shell is fixedly connected to the front side of the shell, the filter element is movably connected to the inside of the shell, the baffle is fixedly connected to the inside of the mounting shell through the connecting mechanism, the connecting mechanism comprises a card slot, a mounting cavity, a slide bar, a moving block, a reset spring, a card block, a moving slot, a pressing block and an extrusion block, a card slot is provided at the top and bottom of the left and right parts of the front part of the inner cavity of the mounting shell, a mounting cavity is provided at the left and right sides of the inside of the baffle, a slide bar is fixedly connected to the middle of the top and bottom of the mounting cavity, a moving block is slidably connected to the outside of the slide bar, a reset spring is fixedly connected to the middle of the top and bottom of the mounting cavity, a card block is fixedly connected to the middle of the rear side of the moving blocks at the front and rear parts at positions close to each other, a moving slot is penetrated through the top and the middle of the bottom of the rear side of the mounting cavity, a pressing block is slidably connected through the middle of the front side of the mounting cavity, and an extrusion block is fixedly connected to the rear of the pressing block.

[0006] As a further description of the above technical solution:

[0007] The bottom end of the top return spring is fixedly connected to the top of the top moving block, the top end of the bottom return spring is fixedly connected to the bottom of the bottom moving block, and the return spring is sleeved on the outer side of the slide rod.

[0008] As a further description of the above technical solution:

[0009] The clamping block is slidably connected to the inside of the moving groove, and the left and right sides of the clamping block are in contact with the left and right sides of the moving groove.

[0010] As a further description of the above technical solution:

[0011] The rear top and bottom of the extrusion block are provided with inclined surfaces, and the front bottom of the top moving block and the front top of the bottom moving block are also provided with inclined surfaces.

[0012] As a further description of the above technical solution:

[0013] The front side of the mounting shell is fixedly connected with a cleaning mechanism, and the cleaning mechanism includes a fixing plate, a limiting rod, a threaded rod, a rotating disk, a slider, a connecting plate and a cleaning brush. The fixing plates are fixedly connected at the four corners of the front side of the mounting shell, the limiting rod is fixedly connected to the middle part between the opposite sides of the fixing plates at the top and bottom of the right part, the threaded rod is rotatably connected to the middle part between the opposite sides of the fixing plates at the top and bottom of the left part, the top of the threaded rod is fixedly connected with a rotating disk, the outer sides of the limiting rod and the threaded rod are provided, the front part between the opposite sides of the sliders on the left and right parts is fixedly connected with a connecting plate, and the rear side of the connecting plate is fixedly connected with a cleaning brush.

[0014] As a further description of the above technical solution:

[0015] The left slider is screwed to the outer side wall of the threaded rod through a thread, and the right slider is slidably connected to the outer side wall of the limiting rod, and the rear side of the cleaning brush is in contact with the front side of the baffle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When replacing the filter element of the replaceable air filter, the pressing block is pressed so that the inclined surface of the extrusion block presses the inclined surface of the moving block, so that the top and bottom moving blocks move away from each other, drive the card blocks to move away from each other, release the card block from the card slot, pull the blocking net to disassemble the blocking net, pull out the filter element for replacement, and then press the pressing block again to move the card blocks away from each other, embed the card block in the card slot, loosen the pressing block, and reset the reset spring so that the moving block drives the card block to reset, so that the card block is engaged with the card slot, thereby avoiding the use of screws for fixing, saving time and effort, facilitating replacement, improving replacement efficiency, and avoiding the occurrence of screw stripping.

[0018] 2. The replaceable air filter drives the threaded rod to rotate by rotating the turntable. The limit rod is used to limit the threaded rod. When the threaded rod rotates, the slider drives the connecting plate to move, so that the cleaning brush moves to clean the dust on the baffle net, which is convenient for cleaning and prevents dust from clogging the mesh of the baffle net, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a replaceable air filter proposed by the utility model;

[0020] Figure 2 A schematic diagram of the structure of a replaceable air filter slot provided by the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of a return spring of a replaceable air filter proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the cleaning mechanism structure of a replaceable air filter.

[0023] In the figure: 100, outer shell; 200, mounting shell; 300, filter element; 400, retaining net; 500, connecting mechanism; 510, card slot; 520, mounting cavity; 530, sliding rod; 540, moving block; 550, return spring; 560, card block; 570, moving slot; 580, pressing block; 590, squeezing block; 600, cleaning mechanism; 610, fixing plate; 620, limiting rod; 630, threaded rod; 640, turntable; 650, slider; 660, connecting plate; 670, cleaning brush. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a replaceable air filter, which avoids the need for screw fixation, saves time and effort, is convenient for replacement, improves the efficiency of replacement, and avoids the occurrence of screw stripping. Please refer to Figure 1-4 , including a housing 100, a mounting housing 200, a filter element 300, a retaining net 400 and a connecting mechanism 500;

[0028] Please refer again Figure 1 , the housing 100 is used to install the mounting housing 200, the filter element 300, the retaining net 400 and the connecting mechanism 500;

[0029] Please refer again Figure 1 The mounting shell 200 is fixedly connected to the front side of the housing 100, the filter element 300 is movably connected to the inside of the housing 100 for filtering, and the retaining net 400 is fixedly connected to the inside of the mounting shell 200 through the connecting mechanism 500 to protect the filter element 300;

[0030] Please refer again Figure 2-3 , the connecting mechanism 500 includes a card slot 510, a mounting cavity 520, a slide bar 530, a moving block 540, a return spring 550, a card block 560, a moving slot 570, a pressing block 580 and a pressing block 590;

[0031] Please refer again Figure 2-3 The top and bottom of the left and right parts of the front inner cavity of the installation shell 200 are provided with card slots 510, the left and right sides of the inner cavity of the blocking net 400 are provided with installation cavities 520, the middle of the top and bottom of the installation cavity 520 is fixedly connected with a slide bar 530, the outer side of the slide bar 530 is slidably connected with a moving block 540, and the middle of the top and bottom of the installation cavity 520 is fixedly connected with a return spring 550;

[0032] Please refer again Figure 3 A clamping block 560 is fixedly connected to the middle of the rear sides of the front and rear moving blocks 540 at positions close to each other, a moving groove 570 is opened through the middle of the top and bottom of the rear side of the installation cavity 520, a pressing block 580 is slidably connected to the middle of the front side of the installation cavity 520, and an extrusion block 590 is fixedly connected to the rear of the pressing block 580.

[0033] To summarize, when replacing the filter element 300, the pressing block 580 is pressed so that the inclined surface of the squeezing block 590 squeezes the inclined surface of the moving block 540, so that the top and bottom moving blocks 540 move away from each other, driving the card block 560 to move away from each other, so that the card block 560 and the card slot 510 are released from the engagement, the blocking net 400 is pulled to disassemble the blocking net 400, and the filter element 300 is pulled out for replacement, and then the pressing block 580 is pressed again to move the card blocks 560 away from each other, so that the card block 560 is embedded in the card slot 510, and the pressing block 580 is loosened. Through the reset of the reset spring 550, the moving block 540 drives the card block 560 to reset, so that the card block 560 is engaged with the card slot 510, thereby avoiding the use of screws for fixing, saving time and effort, facilitating replacement, improving replacement efficiency, and avoiding the occurrence of screw stripping.

[0034] Please refer again Figure 3 The bottom end of the top return spring 550 is fixedly connected to the top of the top moving block 540 , the top end of the bottom return spring 550 is fixedly connected to the bottom of the bottom moving block 540 , and the return spring 550 is sleeved on the outer side of the slide rod 530 .

[0035] Please refer again Figure 3 The block 560 is slidably connected to the inside of the moving groove 570 , and the left and right sides of the block 560 are in contact with the left and right sides of the moving groove 570 .

[0036] Please refer again Figure 3 The rear top and bottom of the extrusion block 590 are provided with inclined surfaces, and the front bottom of the top moving block 540 and the front top of the bottom moving block 540 are also provided with inclined surfaces.

[0037] Please refer again Figure 4A cleaning mechanism 600 is fixedly connected to the front side of the mounting shell 200, and the cleaning mechanism 600 includes a fixing plate 610, a limiting rod 620, a threaded rod 630, a rotating disk 640, a slider 650, a connecting plate 660 and a cleaning brush 670. The fixing plates 610 are fixedly connected at the four corners of the front side of the mounting shell 200, the limiting rod 620 is fixedly connected to the middle part between the opposite sides of the fixing plates 610 at the top and bottom of the right part, the threaded rod 630 is rotatably connected to the middle part between the opposite sides of the fixing plates 610 at the top and bottom of the left part, the rotating disk 640 is fixedly connected to the top of the threaded rod 630, the slider 650 is arranged on the outside of the limiting rod 620 and the threaded rod 630, the connecting plate 660 is fixedly connected to the front part between the opposite sides of the sliders 650 at the left and right parts, and the cleaning brush 670 is fixedly connected to the rear side of the connecting plate 660.

[0038] Please refer again Figure 4 The left slider 650 is screwed to the outer wall of the threaded rod 630 through a thread, and the right slider 650 is slidably connected to the outer wall of the limiting rod 620, and the rear side of the cleaning brush 670 is in contact with the front side of the baffle 400.

[0039] To summarize, by rotating the turntable 640, the threaded rod 630 is driven to rotate, and by utilizing the limitation of the limit rod 620, when the threaded rod 630 rotates, the slider 650 drives the connecting plate 660 to move, so that the cleaning brush 670 moves to clean the dust on the baffle net 400, making cleaning easier and preventing dust from clogging the mesh of the baffle net 400, thereby improving the practicality of the device.

[0040] In specific use, before use, the technical personnel in this field rotate the turntable 640 to drive the threaded rod 630 to rotate. By utilizing the limitation of the limit rod 620, when the threaded rod 630 rotates, the slider 650 drives the connecting plate 660 to move, so that the cleaning brush 670 moves to clean the dust on the baffle 400. When the filter element 300 needs to be replaced, the pressing block 580 is pressed so that the inclined surface of the squeezing block 590 squeezes the inclined surface of the moving block 540, so that the top and bottom moving blocks 540 move away from each other, driving the card block 560 Move the blocks 560 away from each other to release the engagement with the slot 510, pull the retaining net 400 to disassemble it, pull out the filter element 300, place the new filter element 300 inside the housing 100, and then press the pressing block 580 again to move the blocks 560 away from each other, embed the blocks 560 in the slot 510, loosen the pressing block 580, and reset the reset spring 550 to drive the moving block 540 to reset the blocks 560, so that the blocks 560 are engaged with the slot 510, thereby fixing the retaining net 400 and completing the replacement.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A replaceable air filter, characterized in that: The invention comprises a housing (100), a mounting housing (200), a filter element (300), a blocking net (400) and a connecting mechanism (500), wherein the mounting housing (200) is fixedly connected to the front side of the housing (100), the filter element (300) is movably connected to the interior of the housing (100), the blocking net (400) is fixedly connected to the interior of the mounting housing (200) through the connecting mechanism (500), the connecting mechanism (500) comprises a card slot (510), a mounting cavity (520), a sliding rod (530), a moving block (540), a return spring (550), a card block (560), a moving groove (570), a pressing block (580) and an extruding block (590), and the top and bottom of the left and right parts of the front part of the inner cavity of the mounting housing (200) are provided with A card slot (510), an installation cavity (520) is opened on the left and right sides of the interior of the blocking net (400), a sliding rod (530) is fixedly connected to the middle of the top and bottom of the installation cavity (520), a moving block (540) is slidably connected to the outside of the sliding rod (530), a return spring (550) is fixedly connected to the middle of the top and bottom of the installation cavity (520), a card block (560) is fixedly connected to the middle of the rear side of the front and rear moving blocks (540) at a position close to each other, a moving groove (570) is opened through the middle of the top and bottom of the rear side of the installation cavity (520), a pressing block (580) is slidably connected to the middle of the front side of the installation cavity (520), and an extrusion block (590) is fixedly connected to the rear of the pressing block (580).

2. A replaceable air filter according to claim 1, characterized in that: The bottom end of the top return spring (550) is fixedly connected to the top of the top moving block (540), the top end of the bottom return spring (550) is fixedly connected to the bottom of the bottom moving block (540), and the return spring (550) is sleeved on the outer side of the sliding rod (530).

3. A replaceable air filter according to claim 1, characterized in that: The clamping block (560) is slidably connected to the inside of the movable groove (570), and the left and right sides of the clamping block (560) are in contact with the left and right sides of the movable groove (570).

4. A replaceable air filter according to claim 1, characterized in that: The rear top and bottom of the extrusion block (590) are provided with inclined surfaces, and the front bottom of the top moving block (540) and the front top of the bottom moving block (540) are also provided with inclined surfaces.

5. A replaceable air filter according to claim 1, characterized in that: The front side of the installation shell (200) is fixedly connected with a cleaning mechanism (600), and the cleaning mechanism (600) comprises a fixing plate (610), a limiting rod (620), a threaded rod (630), a rotating disk (640), a sliding block (650), a connecting plate (660) and a cleaning brush (670). The fixing plate (610) is fixedly connected at the four corners of the front side of the installation shell (200), and the limiting rod (620) is fixedly connected at the middle part between the opposite sides of the fixing plate (610) at the top and bottom of the right part. 620), a threaded rod (630) is rotatably connected to the middle part between the opposite sides of the fixed plate (610) at the top and bottom of the left part, a turntable (640) is fixedly connected to the top of the threaded rod (630), a slider (650) is arranged on the outer side of the limit rod (620) and the threaded rod (630), a connecting plate (660) is fixedly connected to the front part between the opposite sides of the slider (650) on the left and right parts, and a cleaning brush (670) is fixedly connected to the rear side of the connecting plate (660).

6. A replaceable air filter according to claim 5, characterized in that: The left slider (650) is screwed to the outer wall of the threaded rod (630) through a thread, and the right slider (650) is slidably connected to the outer wall of the limiting rod (620), and the rear side of the cleaning brush (670) is in contact with the front side of the baffle (400).

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