Air filter with filter element convenient to replace

Abstract

The air filter comprises a shell, the filter element is inserted into the shell, an air outlet is formed in the top of the shell, a cover plate is arranged at the air outlet, the lower side of the cover plate is movably connected with the upper side face of the filter element, an air outlet machine is arranged in the middle of the cover plate, and second containing grooves are formed in the positions, located on the left side and the right side of the air outlet machine, of the top of the cover plate respectively. When the filter element is disassembled, the filter element can be pulled out through the handles, clamping structures are arranged on the left side and the right side of the air outlet corresponding to the side wall of the cover plate respectively, a supporting block is arranged at the bottom in the shell, the upper side face of the supporting block abuts against the bottom of the filter element, and an air inlet pipe is arranged at the position, corresponding to the supporting block, of the side wall of the shell. One end of the air inlet pipe penetrates through the supporting block and extends to the bottom of the filter element to be communicated with the filter element, and the other end of the air inlet pipe is communicated with the outside; through clamping of the clamping structure, when the filter element is replaced, dismounted and mounted, the dismounting and mounting work can be rapidly completed without the help of tools.

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] Air filter is a device that captures dust from gas-solid two-phase flow and purifies the gas through the action of porous filter materials. It sends the low-dust air into the room after purification to ensure the process requirements of the clean room and the air cleanliness in the general air-conditioned room.

[0003] When users purify the air, they need to use an air filter. After using the filter for a period of time, the filter element needs to be replaced. The shell of the existing air filter element is usually fixed and sealed with screws. When disassembling and replacing the filter element, tools are needed to disassemble it, which is troublesome, time-consuming and labor-intensive. Utility Model Content

[0004] In view of the technical problems in the above-mentioned prior art, the utility model provides an air filter with an easy-to-replace filter element, aiming to solve the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An air filter that is easy to replace the filter element, comprises a shell, a filter element is inserted in the shell, an air outlet is opened on the top of the shell, a cover is provided at the air outlet, the lower side of the cover is movably connected to the upper side of the filter element, an air outlet is provided in the middle of the cover, and a clamping structure is respectively provided on the side walls of the cover corresponding to the left and right sides of the air outlet, a support block is provided at the bottom of the shell, the upper side of the support block abuts against the bottom of the filter element, an air inlet pipe is provided at the side wall of the shell corresponding to the support block, one end of the air inlet pipe passes through the support block and extends to the bottom of the filter element to be connected with the filter element, and the other end is connected with the outside.

[0007] Preferably, the clamping structure includes a laterally arranged clamping rod, wherein one end of the clamping rod toward the cover plate extends through the shell side wall to the cover plate side wall and is plugged into the cover plate side wall, and a handle is provided at the end facing away from the cover plate, and the clamping rod is slidably connected to the shell.

[0008] Preferably, a movable cavity is transversely opened in the shell corresponding to the part of the clamping rod located in the shell, and a limit block slidably connected to the movable cavity is provided at one end of the part of the clamping rod located in the movable cavity facing the cover plate, and a spring is provided in the movable cavity on the side of the limit block facing away from the cover plate, and the spring is inserted on the clamping rod, and an inclined surface inclined from top to bottom toward the middle of the cover plate is provided on the end of the clamping rod facing the cover plate.

[0009] Preferably, first placement grooves are provided at left and right sides of the shell corresponding to the handles, and after the clamping rod is clamped, the handles are located in the first placement grooves.

[0010] Preferably, fixing plates are fixed on the upper and lower sides of the filter element, a connecting ring block is provided on the lower side of the cover plate corresponding to the fixing plate at the upper end of the filter element, ventilation holes are provided in a circular array on the side wall of the connecting ring block, and clamping blocks are fixed on the left and right ends of the bottom of the connecting ring block respectively, annular limiting grooves slidably connected to the fixing plate corresponding to the connecting ring block and the two clamping blocks on the upper side are provided, and insertion openings are provided on the upper side of the annular limiting grooves corresponding to the two limiting blocks respectively.

[0011] Preferably, a positioning groove is provided on the support block corresponding to the lower fixing plate, and a sealing gasket matching the lower fixing plate is provided in the positioning groove.

[0012] Preferably, the top of the cover plate is provided with second placement grooves on the left and right sides of the air outlet respectively, and handles are hinged in the two second placement grooves respectively, and the handles can be retracted into the second placement grooves when not in use.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides an air filter which is convenient for replacing the filter element. When the filter element needs to be replaced, the handle is pulled outwards to separate the clamping rod from the cover plate, and then the cover plate is lifted up through the handle on the upper side of the cover plate. Since the clamping block is clamped in the annular limiting groove, the filter element can be lifted up together when the cover plate is lifted up, which is more convenient and quicker to disassemble than the traditional screw connection.

[0015] When replacing the filter element, you only need to rotate the removed filter element until the two clamping blocks are aligned with the two insertion ports, then you can remove the filter element. When replacing, do the opposite. After the replacement is completed, insert the filter element and close the cover. During the closing process, when the cover moves downward and abuts against the inclined surface of the clamping rod, push the clamping rod outward until the clamping rod is inserted into the side wall of the cover. At this time, the bottom of the filter element just abuts against the sealing gasket of the positioning groove, thereby completing the installation. The entire disassembly and assembly process does not require tools and is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front cross-sectional view of an air filter for easy replacement of a filter element according to the utility model;

[0017] Figure 2 This is an enlarged view of point A of an air filter for easy replacement of a filter element according to the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the fixing plate structure of an air filter for facilitating filter element replacement.

[0019] In the figure: 1. shell; 11. air outlet; 12. movable cavity; 13. first placement slot; 2. filter element; 21. fixing plate; 22. annular limit slot; 23. insertion port; 3. cover plate; 31. air outlet; 32. connecting ring block; 33. ventilation hole; 34. snap-in block; 35. second placement slot; 36. handle; 4. snap-in structure; 41. snap-in rod; 42. handle; 43. limit block; 44. spring; 45. inclined surface; 5. air inlet pipe; 6. support block; 61. positioning slot; 62. sealing gasket. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 , the embodiment proposed in the present application is: an air filter for easy replacement of filter element, comprising a shell 1, a filter element 2 is inserted in the shell 1, an air outlet 11 is opened at the top of the shell 1, a cover plate 3 is arranged at the air outlet 11, the lower side of the cover plate 3 is movably connected with the upper side of the filter element 2, an air outlet 31 is arranged in the middle of the cover plate 3, and a second placement groove 35 is opened at the top of the cover plate 3 on the left and right sides of the air outlet 31, and handles 36 are hinged in the two second placement grooves 35 respectively. When the filter element is disassembled, it can be pulled out by the handles 36. When the handles 36 are not in use, they can be retracted into the second placement grooves 35 so that it does not affect the appearance of the filter, and a clamping structure 4 is respectively arranged on the side walls of the cover plate 3 on the left and right sides of the air outlet 11, a support block 6 is arranged at the bottom of the shell 1, and the upper side of the support block 6 is abutted against the bottom of the filter element 2, and an air inlet pipe 5 is arranged at the side wall of the shell 1 corresponding to the support block 6, one end of the air inlet pipe 5 passes through the support block 6, and extends to the bottom of the filter element 2 to communicate with the filter element 2, and the other end is communicated with the outside;

[0022] By means of the clamping structure 4, the filter element 2 can be quickly disassembled and assembled without the aid of tools when being replaced and disassembled.

[0023] In another embodiment, see Figure 1-3The clamping structure 4 includes a horizontally arranged clamping rod 41, one end of the clamping rod 41 toward the cover plate 3 passes through the side wall of the shell 1 and extends to the side wall of the cover plate 3, and is plugged with the side wall of the cover plate 3, and a handle 42 is provided at the end of the end facing away from the cover plate 3. A first placement groove 13 is opened at the left and right sides of the shell 1 corresponding to the handle 42. After the clamping rod 41 is clamped, the handle 42 is located in the first placement groove 13. The hidden design ensures the beauty of the filter. The clamping rod 41 is slidably connected to the shell 1, and an active cavity 12 is horizontally opened in the shell 1 corresponding to the part of the clamping rod 41 located in the shell 1. The part of the clamping rod 41 located in the active cavity 12 is provided with a limit block 43 slidably connected with the active cavity 12 toward one end of the cover plate 3. A spring 44 is provided on the side of the limit block 43 in the active cavity 12 facing away from the cover plate 3. The spring 44 is inserted on the clamping rod 41, and an inclined surface 45 inclined from top to bottom to the middle part of the cover plate 3 is provided at one end of the clamping rod 41 toward the cover plate 3.

[0024] When the filter element 2 needs to be replaced, the handle 42 is pulled outward to disengage the clamping rod 41 from the cover plate 3, and then the cover plate 3 is lifted up through the handle 36 on the upper side of the cover plate 3. Since the clamping block 34 is clamped in the annular limit groove 22, when the cover plate 3 is lifted up, the filter element 2 can be lifted up at the same time. After the replacement is completed, the filter element 2 is inserted and the cover plate 3 is closed. During the closing process, the cover plate 3 moves downward and abuts against the inclined surface 45 of the clamping rod 41, and the clamping rod 41 is pushed outward until the clamping rod 41 is clamped into the side wall of the cover plate 3. At this time, the bottom of the filter element 2 just abuts against the supporting block 6, thereby completing the installation. Compared with the traditional screw connection, no tools are required during disassembly, and it is more convenient and quick.

[0025] In another embodiment, see Figure 1-3 , the filter element 2 is fixed with fixing plates 21 on the upper and lower sides, a connecting ring block 32 is provided on the lower side of the cover plate 3 corresponding to the fixing plate 21 at the upper end of the filter element 2, a ventilation hole 33 is provided in a circular array on the side wall of the connecting ring block 32, and clamping blocks 34 are fixedly provided at the left and right ends of the bottom of the connecting ring block 32, an annular limiting groove 22 slidably connected to the upper fixing plate 21 corresponding to the connecting ring block 32 and the two clamping blocks 34 is provided, and insertion ports 23 are provided at the upper side of the annular limiting groove 22 corresponding to the two clamping blocks 34, respectively, and a positioning groove 61 is provided at the support block 6 corresponding to the lower fixing plate 21, and a sealing gasket 62 matching the lower fixing plate 21 is provided in the positioning groove 61;

[0026] After taking out the filter element 2, when replacing the filter element 2, you only need to rotate the taken out filter element 2 until the two clamping blocks 34 are aligned with the two insertion ports 23, then the filter element 2 can be removed. When installing the filter element 2, the reverse operation can fix the filter element 2 on the bottom side of the cover plate 3, which is convenient for its installation.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An air filter with a filter element that is easy to replace, comprising a housing (1), wherein a filter element (2) is inserted into the housing (1), and characterized in that: The shell (1) is provided with an air outlet (11) at the top, a cover plate (3) is provided at the air outlet (11), the lower side of the cover plate (3) is movably connected to the upper side of the filter element (2), an air outlet fan (31) is provided in the middle of the cover plate (3), and clamping structures (4) are provided on the left and right sides of the air outlet (11) corresponding to the side walls of the cover plate (3), a support block (6) is provided at the bottom of the shell (1), the upper side of the support block (6) is in contact with the bottom of the filter element (2), an air inlet pipe (5) is provided at the side wall of the shell (1) corresponding to the support block (6), one end of the air inlet pipe (5) passes through the support block (6) and extends to the bottom of the filter element (2) to be connected to the filter element (2), and the other end is connected to the outside.

2. An air filter with easy filter element replacement according to claim 1, characterized in that: The clamping structure (4) comprises a clamping rod (41) arranged transversely, wherein one end of the clamping rod (41) facing the cover plate (3) passes through the side wall of the shell (1) and extends to the side wall of the cover plate (3) and is plugged into the side wall of the cover plate (3), and a handle (42) is provided at the end facing away from the cover plate (3), and the clamping rod (41) is slidably connected to the shell (1).

3. An air filter with easy filter element replacement according to claim 2, characterized in that: An active cavity (12) is transversely opened in the shell (1) at a portion of the shell (1) corresponding to the clamping rod (41) located in the shell (1); a limit block (43) slidably connected to the active cavity (12) is provided at one end of the portion of the clamping rod (41) located in the active cavity (12) facing the cover plate (3); a spring (44) is provided in the active cavity (12) on a side of the limit block (43) facing away from the cover plate (3); the spring (44) is inserted into the clamping rod (41); and an inclined surface (45) is provided at one end of the clamping rod (41) facing the cover plate (3) and inclined from top to bottom toward the middle of the cover plate (3).

4. The air filter with easy filter element replacement according to claim 2, characterized in that: First placement grooves (13) are provided on the left and right sides of the housing (1) corresponding to the handles (42); after the clamping rod (41) is clamped, the handles (42) are located in the first placement grooves (13).

5. The air filter with easy filter element replacement according to claim 1, characterized in that: The filter element (2) is fixedly provided with fixing plates (21) on both upper and lower sides; a connecting ring block (32) is provided on the lower side of the cover plate (3) corresponding to the fixing plate (21) at the upper end of the filter element (2); a side wall of the connecting ring block (32) is provided with ventilation holes (33) in an annular array; a clamping block (34) is fixedly provided at the left and right ends of the bottom of the connecting ring block (32); an annular limiting groove (22) slidably connected to the fixing plate (21) on the upper side corresponding to the connecting ring block (32) and the two clamping blocks (34); and an insertion opening (23) is provided on the upper side of the annular limiting groove (22) corresponding to the two clamping blocks (34).

6. An air filter with easy filter element replacement according to claim 5, characterized in that: The support block (6) is provided with a positioning groove (61) corresponding to the lower fixing plate (21), and a sealing gasket (62) matching the lower fixing plate (21) is arranged in the positioning groove (61).

7. The air filter with easy filter element replacement according to claim 1, characterized in that: The top of the cover plate (3) is provided with second placement grooves (35) on the left and right sides of the air outlet fan (31), and handles (36) are hinged in the two second placement grooves (35), respectively. When not in use, the handles (36) can be retracted into the second placement grooves (35).

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