Air filter with filter element convenient to replace

Abstract

The utility model discloses an air filter convenient to replace the filter element in the air filter field, including filter box, slot, limit strip, filter element, cover plate, sealing mechanism and connecting mechanism, the slot passes through the middle of filter box right side, limit strip is fixedly connected to the front and rear part of filter box top and bottom, the cover plate passes through the filter box right side middle, the limit strip passes through the filter box right side middle, the cover plate passes through the cover plate right side middle, and the connecting mechanism passes through the cover plate right side middle. According to the air filter convenient to replace the filter element, by pulling a pull block, an inserting rod is moved out of a connecting groove, a sealing box is pulled, a cover plate is detached, the filter element is moved out, then a new air filter is installed, the cover plate is embedded in an inserting groove, the connecting groove is aligned with the inserting rod, and the pull block is loosened, so that the filter element can be replaced conveniently. The insertion rod is embedded in the connecting groove to complete fixation, so that connection by using a screw is avoided, the filter element is convenient to replace, time and labor are saved, the replacement efficiency is improved, and the screw is prevented from being screwed by using a specific tool.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air filter with a filter element that is easy to replace. Background Art

[0002] The impact of indoor air pollution on the human body is 2 to 4 times more serious than that of outdoor air, and in some cases it can even be more than 100 times. In the industrial production process, a large amount of waste gas and harmful gases are generated. In addition, different production processes may produce different waste gas components, so different air filters are needed to filter and treat the waste gas. One is to protect the production workers in the workshop and make the working environment of the workshop better. The second is the national requirements for air quality, which require factory workshops to meet the waste gas emissions standards. In order to meet the above requirements, enterprises must adopt fresh air systems to improve and purify indoor air quality. In the fresh air system, air filters are indispensable equipment.

[0003] When replacing the filter element of the current filter, it is usually necessary to remove the screws on the filter cover before opening the cover and removing the filter element. The screws still need to be tightened during installation, which wastes a lot of time when disassembling and installing the filter element, reduces the replacement efficiency, and requires a specific screw-tightening tool, which brings a lot of inconvenience to the user. For this reason, we propose an air filter that is easy to replace the filter element. Utility Model Content

[0004] The purpose of the utility model is to provide an air filter that is easy to replace the filter element, so as to solve the problem proposed in the above background technology that the current filter uses a screw connection method when replacing the filter element, which wastes a lot of time when disassembling and assembling the filter element, reduces the replacement efficiency, and requires a specific screw tool, which brings a lot of inconvenience to the user.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air filter that is easy to replace the filter element, comprising a filter box, a slot, a limit strip, a filter element, a cover plate, a sealing mechanism and a connecting mechanism, wherein the slot is opened through the middle of the right side of the filter box, the limit strip is fixedly connected to the front and rear parts of the top and bottom of the inner cavity of the filter box, the filter element is slidably connected between the limit strips at the front and rear parts, the cover plate is fixedly connected to the inside of the slot through the connecting mechanism, the sealing mechanism is fixedly connected to the right side of the cover plate, and the connecting mechanism comprises a connecting block, a connecting groove, a mounting block, a contraction cavity, a reset A spring, an insertion rod, a pull block and a limit groove, a connecting block is fixedly connected to the middle part of the right side of the sealing mechanism, a connecting groove is penetrated through the middle part of the front side of the connecting block, a mounting block is fixedly connected to the middle part of the front and rear parts of the right side of the filter box, a contraction cavity is provided in the middle part of the right part of the opposite side of the mounting blocks of the front and rear parts, a return spring is fixedly connected to the middle part of the opposite side of the contraction cavity of the front and rear parts, an insertion rod is fixedly connected to the opposite ends of the return spring of the front and rear parts, a pull block is fixedly connected to the middle part of the right side front part of the front and rear insertion rods and the middle part of the right side rear part of the rear insertion rod, and a limiting groove is penetrated through the middle part of the right side of the contraction cavity.

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

[0007] The length and width of the right side of the filter element are equal to the length and width of the slot of the slot, and the spacing between the limit strips at the front and rear parts is equal to the width of the filter element.

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

[0009] The length and width of the end of the insertion rod are equal to the length and width of the slot of the connecting slot, and the insertion rod is slidably connected to the inside of the contraction cavity.

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

[0011] The pull block is slidably connected to the interior of the limiting groove, and the top and bottom of the pull block are in contact with the top and bottom of the limiting groove.

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

[0013] The sealing mechanism includes a sealing gasket, a sealing box, a compression spring, a clamping plate and a sealing frame. The right side of the filter box is fixedly connected to a sealing gasket on the outside of the slot, the right side of the cover plate is fixedly connected to a sealing box, the top and bottom of the right side of the inner cavity of the sealing box are evenly fixedly connected to clamping plates, the middle right side of the clamping plate is fixedly connected to the sealing frame, and the connecting block is fixedly connected to the middle right side of the sealing frame.

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

[0015] The clamping plate is slidably clamped in the interior of the sealing box, and the outer side wall of the clamping plate is in contact with the inner side wall of the sealing box.

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

[0017] 1. The air filter which is easy to replace the filter element, by pulling the pull block, the plug rod is contracted inside the contraction cavity, the reset spring is squeezed, the plug rod is moved out of the connecting groove, the sealing box is pulled, the cover plate is disassembled, the filter element is removed, and then a new one is installed, the cover plate is embedded in the slot, the connecting groove and the plug rod are aligned, the pull block is loosened, and the plug rod is embedded in the connecting groove by resetting the reset spring to complete the fixation, thereby avoiding the use of screws for connection, facilitating the replacement of the filter element, saving time and labor, improving the efficiency of replacement, and avoiding the use of specific tools to tighten the screws.

[0018] 2. When installing the air filter that is easy to replace the filter element, align the cover plate with the slot, press the sealing box to embed the cover plate in the slot, and at the same time make the sealing frame contact with the sealing gasket, so that the sealing frame drives the card plate to shrink in the sealing box, squeezes the compression spring, and through the reaction force of the compression spring, the sealing frame tightly presses the sealing gasket, thereby enhancing the sealing of the device, avoiding air leakage at the connection, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an air filter that is easy to replace the filter element proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of a filter element installation structure of an air filter that is easy to replace the filter element, which is proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the connection mechanism structure of an air filter that is convenient for replacing the filter element proposed by the utility model;

[0022] Figure 4 The utility model provides a schematic structural diagram of a sealing mechanism of an air filter which is convenient for replacing a filter element.

[0023] In the figure: 100, filter box; 200, slot; 300, limit strip; 400, filter element; 500, cover plate; 600, sealing mechanism; 610, sealing gasket; 620, sealing box; 630, compression spring; 640, clamping plate; 650, sealing frame; 700, connecting mechanism; 710, connecting block; 720, connecting groove; 730, mounting block; 740, contraction chamber; 750, reset spring; 760, plug rod; 770, pull block; 780, limit groove. 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 an air filter that is easy to replace the filter element, avoids the use of screws to connect, facilitates the replacement of the filter element, saves time and effort, improves the efficiency of replacement, and avoids the use of specific tools to tighten the screws. Please refer to Figure 1-4 , including a filter box 100, a slot 200, a limit strip 300, a filter element 400, a cover plate 500, a sealing mechanism 600 and a connecting mechanism 700;

[0028] Please refer again Figure 1 The filter box 100 is used to provide an installation slot 200, a limit strip 300, a filter element 400, a cover plate 500, a sealing mechanism 600 and a connecting mechanism 700;

[0029] Please refer again Figure 1-2The slot 200 is opened through the middle of the right side of the filter box 100, the limiting strip 300 is fixedly connected to the front and rear parts of the top and bottom of the inner cavity of the filter box 100 to limit the filter element 400, the filter element 400 is slidably connected between the front and rear limiting strips 300, the cover plate 500 is fixedly connected to the inside of the slot 200 through the connecting mechanism 700 to close the slot 200, and the sealing mechanism 600 is fixedly connected to the right side of the cover plate 500;

[0030] Please refer again Figure 3 , the connection mechanism 700 includes a connection block 710, a connection slot 720, a mounting block 730, a contraction cavity 740, a return spring 750, an insertion rod 760, a pull block 770 and a limiting slot 780;

[0031] Please refer again Figure 3 A connection block 710 is fixedly connected to the middle of the right side of the sealing mechanism 600, a connection groove 720 is formed through the middle of the front side of the connection block 710, a mounting block 730 is fixedly connected to the middle of the front and rear parts of the right side of the filter box 100, and a contraction cavity 740 is formed in the middle of the right side of the opposite side of the mounting block 730 of the front and rear parts;

[0032] Please refer again Figure 3 A return spring 750 is fixedly connected to the middle of the opposite sides of the front and rear contraction cavities 740, and an insertion rod 760 is fixedly connected to the opposite ends of the front and rear return springs 750. A pull block 770 is fixedly connected to the middle of the right front part of the front and rear insertion rods 760 and the middle of the right rear part of the rear insertion rod 760, and a limiting groove 780 is provided through the middle of the right side of the contraction cavity 740.

[0033] To summarize, by pulling the pull block 770, the insertion rod 760 is retracted into the retraction chamber 740, the reset spring 750 is squeezed, the insertion rod 760 is moved out of the connecting groove 720, the sealing box 620 is pulled, the cover plate 500 is disassembled, the filter element 400 is removed, and then a new one is installed, the cover plate 500 is embedded in the slot 200, the connecting groove 720 is aligned with the insertion rod 760, the pull block 770 is loosened, and the insertion rod 760 is embedded in the connecting groove 720 by resetting the reset spring 750 to complete the fixation, thereby avoiding the use of screws for connection, facilitating the replacement of the filter element 400, saving time and effort, improving the efficiency of replacement, and avoiding the use of specific tools to tighten the screws.

[0034] Please refer again Figure 2 The length and width of the right side of the filter element 400 are equal to the length and width of the slot 200 , and the spacing between the front and rear limiting strips 300 is equal to the width of the filter element 400 .

[0035] Please refer again Figure 3The length and width of the end of the insertion rod 760 are equal to the length and width of the slot of the connecting slot 720 , and the insertion rod 760 is slidably connected to the inside of the contraction cavity 740 .

[0036] Please refer again Figure 3 The pull block 770 is slidably connected to the inside of the limiting groove 780, and the top and bottom of the pull block 770 are in contact with the top and bottom of the limiting groove 780.

[0037] Please refer again Figure 4 The sealing mechanism 600 includes a sealing gasket 610, a sealing box 620, a compression spring 630, a clamping plate 640 and a sealing frame 650. The right side of the filter box 100 is located outside the slot 200 and is fixedly connected with the sealing gasket 610. The right side of the cover plate 500 is fixedly connected with the sealing box 620. The top and bottom of the right side of the inner cavity of the sealing box 620 are evenly fixedly connected with the clamping plate 640. The middle part of the right side of the clamping plate 640 is fixedly connected with the sealing frame 650, and the connecting block 710 is fixedly connected to the middle part of the right side of the sealing frame 650.

[0038] Please refer again Figure 4 The card plate 640 is slidably engaged with the interior of the sealing box 620 , and the outer wall of the card plate 640 is in contact with the inner wall of the sealing box 620 .

[0039] To summarize, during installation, align the cover 500 with the slot 200, press the sealing box 620 to embed the cover 500 in the slot 200, and at the same time make the sealing frame 650 contact the sealing gasket 610, so that the sealing frame 650 drives the card plate 640 to shrink in the sealing box 620, squeeze the compression spring 630, and through the reaction force of the compression spring 630, the sealing frame 650 tightly presses the sealing gasket 610, thereby enhancing the sealing of the device, avoiding air leakage at the connection, and improving the practicality of the device.

[0040] In specific use, when replacing the filter element 400, the technical personnel in this field pull the pull block 770 to shrink the plug rod 760 inside the shrinkage cavity 740, squeeze the return spring 750, so that the plug rod 760 moves out of the connecting groove 720, pull the sealing box 620, disassemble the cover plate 500, remove the filter element 400, and then put the new filter element 400 between the limit strips 300 through the slot 200, align the cover plate 500 with the slot 200, press the sealing box 620, so that The cover plate 500 is embedded in the slot 200, and at the same time, the sealing frame 650 is in contact with the sealing gasket 610, so that the sealing frame 650 drives the card plate 640 to shrink in the sealing box 620, and the compression spring 630 is squeezed. Through the reaction force of the compression spring 630, the sealing frame 650 tightly presses the sealing gasket 610, so that the connecting groove 720 is aligned with the insertion rod 760, and the pull block 770 is loosened. Through the reset of the reset spring 750, the insertion rod 760 is embedded in the connecting groove 720 to complete the fixation.

[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. An air filter with easy filter element replacement, characterized in that: The invention comprises a filter box (100), a slot (200), a limit bar (300), a filter element (400), a cover plate (500), a sealing mechanism (600) and a connecting mechanism (700), wherein the slot (200) is opened through the middle part of the right side of the filter box (100), the limit bar (300) is fixedly connected to the front and rear parts of the top and bottom of the inner cavity of the filter box (100), the filter element (400) is slidably connected between the limit bars (300) at the front and rear parts, the cover plate (500) is fixedly connected to the inside of the slot (200) through the connecting mechanism (700), the sealing mechanism (600) is fixedly connected to the right side of the cover plate (500), and the connecting mechanism (700) comprises a connecting block (710), a connecting groove (720), a mounting block (730), a contraction cavity (740), a return spring (750), and an insertion rod (760). ), a pull block (770) and a limiting groove (780), the middle part of the right side of the sealing mechanism (600) is fixedly connected with a connecting block (710), the middle part of the front side of the connecting block (710) is penetrated with a connecting groove (720), the middle part of the right side of the front and rear parts of the filter box (100) is fixedly connected with a mounting block (730), the middle part of the right part of the opposite side of the mounting block (730) of the front and rear parts is provided with a contraction cavity (740), the middle part of the opposite side of the contraction cavity (740) of the front and rear parts is fixedly connected with a return spring (750), the opposite ends of the return spring (750) of the front and rear parts are fixedly connected with an insertion rod (760), the middle part of the right side front part of the front and rear parts and the middle part of the right side rear part of the rear parts of the insertion rod (760) are fixedly connected with a pull block (770), and the middle part of the right side rear part of the contraction cavity (740) is penetrated with a limiting groove (780).

2. The air filter with easy filter element replacement according to claim 1, characterized in that: The length and width of the right side of the filter element (400) are equal to the length and width of the slot of the slot (200), and the spacing between the front and rear limiting strips (300) is equal to the width of the filter element (400).

3. The air filter with easy filter element replacement according to claim 1, characterized in that: The length and width of the end of the insertion rod (760) are equal to the length and width of the slot of the connection slot (720), and the insertion rod (760) is slidably connected to the inside of the contraction cavity (740).

4. The air filter with easy filter element replacement according to claim 1, characterized in that: The pulling block (770) is slidably connected to the interior of the limiting groove (780), and the top and bottom of the pulling block (770) are in close contact with the top and bottom of the limiting groove (780).

5. The air filter with easy filter element replacement according to claim 1, characterized in that: The sealing mechanism (600) comprises a sealing gasket (610), a sealing box (620), a compression spring (630), a clamping plate (640) and a sealing frame (650); the right side of the filter box (100) is located outside the slot (200) and is fixedly connected to the sealing gasket (610); the right side of the cover plate (500) is fixedly connected to the sealing box (620); the top and bottom of the right side of the inner cavity of the sealing box (620) are evenly fixedly connected to the clamping plate (640); the middle part of the right side of the clamping plate (640) is fixedly connected to the sealing frame (650); and the connecting block (710) is fixedly connected to the middle part of the right side of the sealing frame (650).

6. The air filter with easy filter element replacement according to claim 5, characterized in that: The clamping plate (640) is slidably clamped in the interior of the sealing box (620), and the outer wall of the clamping plate (640) is in contact with the inner wall of the sealing box (620).

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