Air filter with filter element convenient to replace

Abstract

The utility model belongs to the technical field of air filters, and particularly discloses an air filter with a filter element convenient to replace, which comprises a filter element assembly and a mounting shell used for mounting the filter element assembly, an opening is formed in the side surface of the mounting shell, and a cover body used for sealing the opening is detachably connected to the mounting shell; the mounting shell comprises a first shell and a second shell which are detachably connected together, the first shell and / or the second shell are / is provided with a first limiting plate used for limiting the side face, not facing the side of the cover body, of the filter element assembly, and the cover body is provided with a second limiting plate used for limiting the side face, facing the cover body, of the filter element assembly; the opposite faces of the first shell and the second shell are each provided with a limiting piece used for limiting the two sides of the filter element assembly. And the cover body is connected with the first shell and the second shell. By adopting the scheme of the utility model, the problem that the filter element can be taken out only when the upper shell is opened due to the fact that a common air filter is horizontally placed and a larger operation space is required to be formed above the upper shell can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of air filter technology, and specifically relates to an air filter that facilitates filter element replacement. Background Technology

[0002] In existing technology, air filters consist of an upper housing and a lower housing. The filter element is placed between the upper and lower housings, and then the upper and lower housing covers are joined together using conventional methods (such as bolts) to complete the assembly. The filter element needs to be replaced periodically. When the filter element needs to be removed, the upper and lower housings must be disassembled; the upper housing must be removed first, and then the filter element can be taken out from within. Since air filters are generally placed horizontally, a large operating space is required above when opening the upper housing to remove the filter element. Even if the air filter is placed vertically, opening the upper housing from the side will cause the vertically placed filter element to tip over after losing the restraint of the upper housing, making it inconvenient for single-person operation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an air filter that facilitates filter element replacement. This solves the problem that when a conventional air filter is placed horizontally, a large operating space is required above to remove the filter element when opening the upper housing; and even when the air filter is placed vertically, the vertically placed filter element will tip over when the upper housing is opened from the side, making it inconvenient for single-person operation.

[0004] According to the embodiments of this utility model, the following technical solution is adopted:

[0005] An air filter for easy filter element replacement includes a filter element assembly and a mounting housing for mounting the filter element assembly. The mounting housing has an opening on its side for the filter element assembly to enter and exit. A cover for closing the opening is detachably connected to the mounting housing. The mounting housing includes a first housing and a second housing detachably connected together. The first housing and / or the second housing has a first limiting plate for limiting the side of the filter element assembly that is not facing the cover. The cover has a second limiting plate for limiting the side of the filter element assembly that faces it. The opposite sides of the first housing and the second housing each have limiting members for limiting both sides of the filter element assembly. The cover is connected to both the first housing and the second housing.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] In this design, an opening is designed on the side of the mounting housing. The cover can be removed to easily access the filter element assembly. With the air filter lying flat, removing the cover from the side requires minimal operating space. Furthermore, the first and second housings consistently provide a limiting effect on the filter element assembly. After removing the cover, the filter element assembly can be pulled out from between the first and second housings. The cover is connected to both the first and second housings, ensuring overall structural stability and providing better limiting and securing of the filter element.

[0008] The first limiting plate limits the filter element assembly in the circumferential direction, but does not prevent the filter element assembly from being pulled out toward the cover. The second limiting plate on the cover can supplement the limiting of the filter element assembly in this direction, preventing the filter element assembly from shaking inside the mounting housing.

[0009] Furthermore, the limiting component includes a ring-shaped support ring.

[0010] Furthermore, the limiting component includes several pressure plates arranged in parallel or cross-arranged.

[0011] Furthermore, the length direction of the pressure plate is along the direction in which the filter element assembly enters and exits the mounting housing.

[0012] Furthermore, the first housing is provided with an L-shaped mounting block, and a groove is formed between the mounting block and the first housing. The length direction of the groove is along the direction in which the filter element assembly enters and exits the mounting housing; the cover is provided with a slider for inserting into the groove.

[0013] Furthermore, a first locking block is fixed to the side end of the cover, the first locking block has an L-shaped cross-section, and a second locking block is provided on the second housing for locking the first locking block.

[0014] Furthermore, the end of the first locking block is provided with an inclined guide surface, which is inclined toward the inside of the cover along the direction from the cover to the free end of the first locking block.

[0015] Furthermore, a groove is provided on the side of the cover, and the first locking block is connected to the end of the groove.

[0016] Furthermore, the filter element assembly includes a mounting bracket and a filter element snapped onto the mounting bracket, which is secured within a first housing and a second housing.

[0017] Furthermore, the mounting bracket has a handle on the side facing the cover. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the filter element assembly in an embodiment of the present invention.

[0020] Figure 3This is a schematic diagram of the structure of the first housing in an embodiment of the present invention.

[0021] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0022] Figure 5 This is a schematic diagram of the structure of the second shell in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the second shell in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the cover body in an embodiment of the present utility model.

[0025] Figure 8 This is a schematic diagram of the cover body in an embodiment of the present utility model.

[0026] In the diagram: 1. Second housing; 2. Mounting bracket; 3. Filter element; 4. Filter element assembly; 5. First housing; 6. First limiting plate; 7. Support ring; 8. Pressure plate; 9. Mounting groove; 10. Cover; 11. Groove; 12. First locking block; 13. Second locking block; 14. Mounting block; 15. Slider; 16. Handle; 17. Guide surface; 18. Second limiting plate. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments will be given.

[0028] like Figure 1 As shown, an air filter that facilitates filter element replacement includes a filter element assembly 4 and a mounting housing for mounting the filter element assembly 4. The mounting housing has an opening on its side for the filter element assembly 4 to enter and exit, and a cover 10 for closing the opening is detachably connected to the mounting housing. Specifically, the mounting housing includes a first housing 5 and a second housing 1 that are detachably connected together. The first housing 5 and the second housing 1 are bolted together. To prevent the ends of the bolts from protruding from the surface of the mounting housing, the second housing 1 has a mounting groove 9, and the bolt ends are located in the mounting groove 9.

[0029] Combination Figure 2 As shown, the filter element assembly 4 includes a mounting bracket 2 and a filter element 3 that is snapped onto the mounting bracket 2. The mounting bracket 2 is snapped into the first housing 5 and the second housing 1. The design of the mounting bracket 2 makes the overall shape of the filter element assembly 4 regular, so as to limit its position within the first housing 5 and the second housing 1. Different models of mounting brackets 2 can also be designed according to different models of filter elements 3, as long as the overall shape of the mounting bracket 2 can be adapted to the first housing 5 and the second housing 1. A handle 16 is provided on the side of the mounting bracket 2 facing the cover 10 to facilitate the removal of the mounting bracket 2 from the mounting housing.

[0030] In the above solution, by designing an opening on the side of the mounting shell, when taking out or putting in the filter element assembly 4, only the cover 10 needs to be removed. During the removal process, the first shell 5 and the second shell 1 always have a limiting effect on the filter element assembly 4. After removing the cover 10, the filter element assembly 4 can be pulled out from between the first shell 5 and the second shell 1.

[0031] Combination Figure 3 , Figure 4 , Figure 8 As shown, the cover 10 is connected to both the first housing 5 and the second housing 1. Specifically, the first housing 5 is provided with an inverted L-shaped mounting block 14, forming a groove between the mounting block 14 and the first housing 5. The length of the groove is along the direction in which the filter element assembly 4 enters and exits the mounting housing. The cover 10 is provided with a slider 15 for insertion into the groove. The mounting block 14 limits the vertical movement of the cover 10 and provides a certain positioning function. When the slider 15 is inserted into the groove and moves along it, it facilitates the subsequent movement of the cover 10 to connect with the second housing 1. Figure 8 As shown, slider 15 is C-shaped, and the bottom of slider 15 is inserted into the slide groove to achieve mutual positioning between slider 15 and slide groove.

[0032] Combination Figure 7 , Figure 8 As shown, a first locking block 12 is fixed to the side end of the cover 10. The first locking block 12 has an L-shaped cross-section and an inclined guide surface 17 at its end. The guide surface 17 is inclined towards the inside of the cover 10 along the direction from the cover 10 to the free end of the first locking block 12. The second housing 1 is provided with a second locking block 13 for locking the first locking block 12. Due to the design of the guide surface 17, after the guide surface 17 contacts the second locking block 13, the second locking block 13 pushes the first locking block 12 along the guide surface 17 to deform it. When the guide surface 17 passes the second locking block 13, the first locking block 12 returns to its original position and is locked by the second locking block 13. When it is necessary to open the cover 10, the operator needs to push the first locking block 12 to deform it so that the cover 10 can be removed. In order to facilitate the deformation of the first locking block 12, a groove 11 is provided on the side of the cover 10. The first locking block 12 is connected to the end of the groove 11. When pushing the first locking block 12, the operator can simply place his hand on the groove 11 and press it. In the actual design process, the cover 10 is made of plastic material that can undergo a certain degree of deformation.

[0033] Combination Figure 3As shown, the first housing 5 and / or the second housing 1 are provided with a first limiting plate 6 for limiting the side of the filter element assembly 4 that is not facing the cover 10. In this embodiment, the mounting frame 2 is cuboid in shape, and the first housing 5 is provided with the first limiting plate 6. The first limiting plate 6 is a U-shaped opening on one side. In actual design, the first limiting plate 6 can also be composed of multiple discontinuous limiting blocks, as long as it can limit the three sides of the mounting frame 2.

[0034] Combination Figure 8 As shown, the cover 10 is provided with a second limiting plate 18 for limiting the side of the filter element assembly 4 facing it. The side of the second limiting plate 18 facing the filter element assembly 4 is inclined. Through the design of the inclined surface, it can not only limit the mounting bracket 2, but also avoid interference with the handle 16.

[0035] Both the first housing 5 and the second housing 1 have limiting members on their opposite sides for restricting the movement of the filter element assembly 4 on both sides. Specifically, in this embodiment, two design methods for the limiting members are given. The limiting members on the first housing 5 and the second housing 1 can be designed identically, or the following two methods can be selected respectively, depending on the actual design situation. The two design methods are as follows:

[0036] A. Combination Figure 3 As shown, the limiting component includes a ring-shaped support ring 7, which limits the mounting frame 2 to prevent it from moving vertically. The support ring 7 also leaves a gap in the middle to reduce the contact area with the mounting frame 2, so that the mounting frame 2 can be pulled out from between the first housing 5 and the second housing 1.

[0037] B. Combination Figure 5 , Figure 6 As shown, the limiting component includes several pressure plates 8 arranged in parallel or cross arrangement. The pressure plates 8 abut against the surface of the mounting frame 2 to limit the mounting frame 2. In order to reduce the friction when the mounting frame 2 is pulled out from between the first housing 5 and the second housing 1, it is preferable to arrange multiple pressure plates 8 in parallel, and the length direction of the pressure plates 8 is along the direction of the filter element assembly 4 entering and exiting the mounting housing.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An air filter with an easy-to-replace filter element, characterized in that: The device includes a filter element assembly (4) and a mounting shell for mounting the filter element assembly (4). The mounting shell has an opening on its side for the filter element assembly (4) to enter and exit. A cover (10) for closing the opening is detachably connected to the mounting shell. The mounting shell includes a first shell (5) and a second shell (1) detachably connected together. The first shell (5) and / or the second shell (1) are provided with a first limiting plate (6) for limiting the side of the filter element assembly (4) not facing the cover (10). The cover (10) is provided with a second limiting plate (18) for limiting the side of the filter element assembly (4) facing it. The opposite sides of the first shell (5) and the second shell (1) are provided with limiting members for limiting both sides of the filter element assembly (4). The cover (10) is connected to the first shell (5) and the second shell (1).

2. The air filter with easy filter element replacement according to claim 1, characterized in that: The limiting member includes a ring-shaped support ring (7).

3. The air filter with easy filter element replacement according to claim 1, characterized in that: The limiting component includes several pressure plates (8) arranged in parallel or cross arrangement.

4. The air filter with easy filter element replacement according to claim 3, characterized in that: The length direction of the pressure plate (8) is along the direction in which the filter element assembly (4) enters and exits the mounting shell.

5. The air filter with easy filter element replacement according to claim 1, characterized in that: The first housing (5) is provided with an L-shaped mounting block (14), and a groove is formed between the mounting block (14) and the first housing (5). The length direction of the groove is along the direction of the filter element assembly (4) entering and exiting the mounting housing; the cover (10) is provided with a slider (15) for inserting into the groove.

6. The air filter with easy filter element replacement according to claim 1, characterized in that: The cover (10) has a first locking block (12) fixed to its side end. The first locking block (12) has an L-shaped cross-section. The second housing (1) has a second locking block (13) for locking the first locking block (12).

7. The air filter with easy filter element replacement according to claim 6, characterized in that: The first card block (12) has an inclined guide surface (17) at its end. The guide surface (17) is inclined toward the inside of the cover (10) in the direction from the cover (10) to the free end of the first card block (12).

8. The air filter with easy filter element replacement according to claim 6, characterized in that: The cover (10) has a groove (11) on its side, and the first locking block (12) is connected to the end of the groove (11).

9. The air filter with easy filter element replacement according to claim 1, characterized in that: The filter element assembly (4) includes a mounting bracket (2) and a filter element (3) snapped onto the mounting bracket (2). The mounting bracket (2) is snapped into the first housing (5) and the second housing (1).

10. The air filter with easy filter element replacement according to claim 9, characterized in that: The mounting bracket (2) has a handle (16) on the side facing the cover (10).

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