Filtering device and buckle plug-in used for assembling filtering device

Abstract

The utility model provides a filter device, which comprises a shell, a filter element, a first filter element, a second filter element and a third filter element, the shell comprises a first half shell, an opening is formed above the first half shell, a containing cavity is formed in the first half shell, and a first side wall and a second side wall which are opposite to each other are formed on the first half shell; the filter element is mounted in the accommodating cavity of the first half shell; and the buckle plug-in is mounted above the filter element and is connected with the first side wall and the second side wall of the first half shell in a buckling manner. In addition, the utility model further provides a buckle plug-in used for assembling the filtering device, the buckle plug-in comprises a middle abutting section, a first positioning end and a second positioning end, the first positioning end and the second positioning end are connected to the two ends of the middle abutting section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle. According to the technical scheme, the installation stability of the filter element is improved, the filtering effect of the filtering device is guaranteed, and the problem that the air inlet noise of the filtering device is increased due to the fact that the filter element is loosened is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air filtration, in particular to a filter device and a buckle insert for the assembly of the filter device. BACKGROUND

[0002] The filter device applied to the automobile air conditioner is generally composed of an air cleaner assembly, an air cleaner air inlet pipeline assembly, an air cleaner air outlet pipeline assembly and a crankcase ventilation pipe. Among them, the filter core is installed in the air cleaner assembly to realize the filtering and intercepting effect of dust, pollen and other particles in the air. For example, the air cleaner system of patent 202121026241.5, the filter assembly includes a shell and a filter core, wherein the shell is a filter upper shell and a filter lower shell (i.e. two half shells) that are butt-jointed and buckled, and the filter core is arranged between the filter upper shell and the filter lower shell.

[0003] The filter core and the shell of such filter assembly are generally matched in size to realize installation. However, after the existing filter core is installed in the corresponding shell, the filter assembly is mostly installed in the car in the form of inverted buckle. During the long-term operation of the car, due to various vibrations or bumps, the filter core is prone to looseness, gradual falling and displacement, which affects the filtering effect of the filter core and also increases the air intake noise. Therefore, a new structure is needed to maintain the stability of the filter core even in the inverted installation environment. SUMMARY

[0004] The utility model aims at overcoming the defects of prior art, and provides a filter device and a buckle insert for the assembly of the filter device.

[0005] On the one hand, the utility model discloses a filter device, comprising:

[0006] The shell comprises a first half shell, the first half shell is formed with an opening above and a containing cavity in the first half shell, and the first half shell is formed with opposite first and second side walls;

[0007] The filter core is installed in the containing cavity of the first half shell; and

[0008] The buckle insert is installed above the filter core and connected with the first and second side walls of the first half shell by buckling.

[0009] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0010] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0011] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0012] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0013] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0014] According to the filter device of the utility model, the first protruding edge of the first side wall of the first half shell is outwardly protruded, and the second protruding edge of the second side wall of the first half shell is outwardly protruded; the buckle insert includes a middle pressing section and a first positioning end and a second positioning end connected to both ends of the middle pressing section, the first positioning end is provided with a first buckle, and the second positioning end is provided with a second buckle; wherein the first buckle is connected with the first protruding edge of the first side wall of the first half shell, the second buckle is connected with the second protruding edge of the second side wall of the first half shell, and the middle pressing section of the buckle insert is in abutment with the upper surface of the filter core.

[0015] In another aspect, the utility model discloses a kind of buckling inserts for filter device assembly, wherein the buckling insert includes the middle part of the filter core and is connected to the first positioning end and the second positioning end of the middle part of the pressure segment for abutting, first positioning end has the first buckle that can be connected with the first side wall of one half shell in the shell of filter device, second positioning end has the second buckle that can be connected with the second side wall of the one half shell in the shell of filter device.

[0016] According to the utility model for filter device assembly of buckling insert, the first buckle of the buckling insert is half-enclosing shape, and is provided with the barb that is bent upwards on the end of first buckle.

[0017] According to the utility model for filter device assembly of buckling insert, the second buckle of buckling insert is half-enclosing shape, and is formed with the boss on the inner side of second buckle.

[0018] According to the utility model for filter device assembly of buckling insert, the middle part of the pressure segment of the buckling insert is hollow structure.

[0019] According to the utility model for filter device assembly of buckling insert, the middle part of the pressure segment of the buckling insert is formed with the first bending part in the part of connecting with first positioning end, and is formed with the second bending part in the part of connecting with second positioning end.

[0020] According to the utility model for filter device assembly of buckling insert, the second positioning end of the buckling insert is formed with positioning frame.

[0021] Compared with prior art, the utility model at least includes following beneficial effects:

[0022] The utility model is through setting up the special structure of filter device and the buckling insert for this filter device, utilizes the convex edge structure of the first half shell in shell, so that first positioning end and second positioning end on buckling insert and the first and second convex edges of this first half shell are mutually engaged and connected to realize fixation;The middle part of the pressure segment on buckling insert is pressed against filter core, so that filter core can be stably installed in shell. Even when filter device is in inverted installation operating environment, or when subjected to various vibrations or jolts, filter core will not drop out or loosen down due to the abutment of buckling insert, thereby can improve filter core installation stability, ensure the filtering effect of filter device, also avoid the problem that filter device air intake noise is aggravated due to filter core loosening after long-term operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic view of the first half shell of shell in the filter device of the utility model;

[0024] Figure 2 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model;

[0025] Figure 3 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model;

[0026] Figure 4 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model;

[0027] Figure 5 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model;

[0028] Figure 6 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model;

[0029] Figure 7 It is the assembly three-dimensional structure schematic view of the filter core and the first half shell of the shell of the filter device of the utility model.

[0030] Reference signs are:

[0031] 1, first half shell; 11, first convex edge; 111, upper edge part; 112, side edge part;

[0032] 12, second convex edge; 121, clamping groove; 13, positioning part; 2, filter core;

[0033] 21, folded filter material; 22, edge strip; 3, buckle insert; 31, middle pressing segment;

[0034] 311, pressing strip; 312, horizontal strip; 32, first positioning end; 321, first buckle;

[0035] 33, second positioning end; 331, second buckle; 3311, protruding block; 34, first bending part;

[0036] 35, positioning frame; 36, second bending part. DETAILED DESCRIPTION

[0037] In order to make the above purpose, features and advantages of the utility model more apparent, easy to understand, below, combining with the utility model makes further detailed description with specific embodiment and drawing.

[0038] The specific embodiment of the utility model discloses a kind of filter device and buckle insert for the assembly of the filter device.

[0039] The filtration device of this utility model includes: a housing, a filter element 2 placed inside the housing, and a snap-fit ​​insert 3. The housing typically comprises a first half-housing 1 and a second half-housing that are interlocked and fastened together.

[0040] In this utility model, the first half-shell 1 and the second half-shell of the housing can be the upper filter housing and the lower filter housing in the filtration device, respectively. For example... Figure 1 , Figure 2 As shown, the filter element 2 can be placed in one half of the housing, such as in the first half of the housing 1. As a preferred embodiment, in this utility model... Figure 1 , Figure 2 The lower filter housing is used as the first half-shell 1, and the upper filter housing (not shown in the attached figure) is used as the second half-shell.

[0041] However, those skilled in the art will understand that the first half-shell 1 described in this utility model can also be the upper filter shell, and the corresponding second half-shell is the lower filter shell. Such an arrangement essentially has the same structure and function.

[0042] This utility model Figure 1 , Figure 2 The first half-shell 1 shown has an opening at the top and a receiving cavity for mounting and accommodating the filter element 2 is formed within the first half-shell 1. The first half-shell 1 has opposing first and second sidewalls.

[0043] like Figure 2 As shown, the filter element 2 is installed in the receiving cavity of the first half-shell 1. The snap-fit ​​plug 3 is installed above the filter element 2 and is connected to the opposite first and second side walls of the first half-shell 1 by snap-fit.

[0044] Preferably, a first protruding edge 11 is formed by protruding outward at the opening edge of the first sidewall of the first half-shell 1. The first protruding edge 11 includes an upper edge portion 111 extending horizontally outward from the opening edge of the first sidewall and a side edge portion 112 extending downward from the upper edge portion 111. A second protruding edge 12 is formed by protruding outward at the opening edge of the second sidewall of the first half-shell 1.

[0045] like Figure 3 , Figure 4 As shown, the snap-fit ​​plug 3 is generally elongated, including a central pressing section 31 and a first positioning end 32 and a second positioning end 33 connected to both ends of the central pressing section 31. During installation, the central pressing section 31 can abut against the upper surface of the filter element 2, and the first positioning end 32 and the second positioning end 33 can be engaged with the first protruding edge 11 of the first sidewall and the second protruding edge 12 of the second sidewall of the first half-shell 1 respectively by means of a matching first snap-fit ​​321 and a second snap-fit ​​331.

[0046] By adopting the above structure design of the buckle insert 3, and simultaneously utilizing the structures of the first protruding edge 11 and the second protruding edge 12 on the opposite side walls of the first half shell 1, the buckle insert 3 is matched and clamped with the opposite first and second side walls of the first half shell 1. Thus, the fixed connection of the buckle insert 3 and the first half shell 1 can be achieved, so that the filter element 2 is stably installed in the shell by the buckle insert 3 abutting against the surface of the filter element 2.

[0047] After the installation of the filter element is completed, the filter element 2 will not be detached from the original installation position even in the state that the shell is inverted, thus avoiding the problems of loosening and gradually falling down of the filter element in the prior art. Thus, according to the technical scheme of the present application, the stability of the installation of the filter element is improved, so that the filtering effect of the filter element is also ensured, and the problem of the aggravation of the air intake noise of the filtering device due to the loosening of the filter element after long-term operation is also avoided.

[0048] In a further specific embodiment, as shown in Figures 3-6 The first positioning end 32 of the buckle insert 3 is provided with a first buckle 321 in a half-enclosed shape (i.e. a polygonal shape with three closed sides and one open side), and the end of the first buckle 321 is provided with an upwardly bent barb. The second positioning end 33 of the buckle insert 3 is also provided with a second buckle 331 in a half-enclosed shape. The half-enclosed shapes of the first buckle 321 and the second buckle 331 can be different, for example, the half-enclosed shape of the first buckle 321 can be open towards the lower direction of the buckle insert 3, and the half-enclosed shape of the second buckle 331 can be open towards the inner side of the buckle insert 3.

[0049] By adopting the above structure, when the filter element is installed, the end of the first buckle 321 has a barb, so that the installation is first performed on the side of the first buckle 321, and then the installation is performed on the side of the second buckle 331. As shown in Figure 5 The first buckle 321 is first hooked into the inner side of the first protruding edge 11 of the first half shell 1, i.e. the barb at the end of the first buckle 321 is hooked into the inner side of the side edge portion 112 of the first protruding edge 11, and then the second buckle 331 is clamped on the second protruding edge 12 of the first half shell 1. When disassembled, the tail of the second buckle 331 is held to detach the second buckle 331 from the second protruding edge 12, and then the first buckle 321 can be disassembled from the first protruding edge 11. Thus, the disassembly of the buckle insert 3 is very convenient.

[0050] As a preferred embodiment, the second protruding edge 12 of the first half shell 1 is formed with an inner recessed clamping groove 121, and the inner side of the second buckle 331 is correspondingly formed with a protruding block 3311. When the second buckle 331 is clamped on the second protruding edge 12 of the first half shell 1, the protruding block 3311 on the second buckle 331 is clamped into the clamping groove 121 of the second protruding edge 12, thereby achieving more stable installation and fixation. When disassembling, the tail of the second buckle 331 can also be held to disengage the protruding block 3311 from the clamping groove 121 of the second protruding edge 12, and then the first buckle 321 can be disassembled from the first protruding edge 11, which is also very convenient to disassemble and assemble.

[0051] In a further preferred embodiment of the present application, the middle pressing section 31 of the buckle insert 3 is of a hollow structure. Specifically, as shown in Figure 3 , the middle pressing section 31 includes two parallel pressing strips 311 and at least one cross strip 312 connecting the two pressing strips 311. By adopting the hollow design of the buckle insert 3, the abutting and fixing effect of the buckle insert 3 on the filter element 2 can be ensured, and the buckle insert 3 has good air permeability, reducing the loss of the filtering area of the filter element 2 and the filtering resistance, ensuring good filtering efficiency, and also facilitating lightweight, reducing the load of the shell.

[0052] In addition, in a further preferred embodiment of the present application, as shown in Figure 2 , Figure 7 , the filter element 2 includes a folded filter material 21 and a side strip 22 connected to the outer periphery of the folded filter material 21. The folded filter material 21 plays a filtering role, and the hardness of the side strip 22 is higher than that of the folded filter material 21, which plays a role in strengthening the structural strength of the filter element 2. Moreover, the height of the side strip 22 can be designed to be slightly higher than the height of the folded filter material 21. In the buckle insert 3, as shown in Figure 4 , the middle pressing section 31 is formed with a first bending portion 34 at the position connected with the first positioning end 32, and is formed with a second bending portion 36 at the position connected with the second positioning end 33. Thus, when the buckle insert 3 is installed on the first half shell 1, the buckle insert 3 can be abutted and pressed on the side strip 22 of the filter element 2 through the first bending portion 34 and the second bending portion 36 of the middle pressing section 31. In this way, the filter element 2 can be fixed by the first bending portion 34 and the second bending portion 36 abutting against the side strip 22, thereby improving the overall strength and stability of the filter element 2 and effectively improving the problem of deformation of the folded filter material 21 of the filter element 2 due to long-term stress.

[0053] In addition, in a further preferred embodiment of the present application, as shown in Figure 7As shown, the second protruding edge 12 of the first half shell 1 is formed with a positioning part 13 protruding upward. The second positioning end 33 of the buckle insert 3 is formed with a positioning frame 35, which is specifically constituted by the edge of the second positioning end 33 and two pressing strips 311. When the second buckle 331 of the buckle insert 3 is installed on the second protruding edge 12 of the first half shell 1, the positioning part 13 is aligned and buckled into the positioning frame 35 and the positioning part 13 abuts against the edge of the positioning frame 35, so that the positioning frame 35 and the positioning part 13 are mutually constrained and positioned. By adopting the above design structure, the second positioning end 33 can be positioned on the first half shell 1 without moving, thereby positioning and limiting the lateral position of the buckle insert 3 on the first half shell 1, realizing the relative position locking of the buckle insert 3, the filter element 2 and the shell, and further improving the overall positioning stability.

[0054] The technical solutions provided by the utility model are described in detail above, and the principles and implementation manners of the utility model are described by applying specific embodiments. The specific description of the above embodiments is only used for helping to understand the technical solutions and technical concepts of the utility model. Meanwhile, for the general skilled in the art, according to the technical solutions and technical concepts of the utility model, the specific implementation manners and application ranges can be correspondingly modified and replaced, and these modifications and replacements should still belong to the protection scope of the utility model. The content described in the utility model specification should not be understood as the limitation of the utility model.

Claims

1. A filter device, characterized in that The filter device comprises: a housing comprising a first half-shell (1) having an opening formed thereon and a receiving cavity formed therein, the first half-shell (1) being provided with opposite first and second side walls; a filter element (2) mounted in the receiving cavity of the first half-shell (1); and a snap-in insert (3) mounted above the filter element (2) and connected to the first and second side walls of the first half-shell (1) by snap-in connection.

2. The filter device according to claim 1, wherein a first protrusion (11) is formed on the opening edge of the first side wall of the first half-shell (1) and protrudes outward, and a second protrusion (12) is formed on the opening edge of the second side wall of the first half-shell (1) and protrudes outward; the snap-in insert (3) comprises a middle pressing section (31) and first and second positioning ends (32, 33) connected to both ends of the middle pressing section (31), the first positioning end (32) is provided with a first snap-in part (321), and the second positioning end (33) is provided with a second snap-in part (331); wherein the first snap-in part (321) is connected to the first protrusion (11) of the first side wall of the first half-shell (1) by snap-in connection, the second snap-in part (331) is connected to the second protrusion (12) of the second side wall of the first half-shell (1) by snap-in connection, and the middle pressing section (31) of the snap-in insert (3) abuts against the upper surface of the filter element (2).

3. The filter device according to claim 2, wherein the first protrusion (11) of the first half-shell (1) comprises an upper edge portion (111) extending horizontally outward from the opening edge of the first side wall and a side edge portion (112) formed downward from the upper edge portion (111); the first snap-in part (321) of the snap-in insert (3) is in a semi-enclosing shape and is provided with an upwardly bent barb at the end thereof; and the barb at the end of the first snap-in part (321) is hooked into the inner side of the side edge portion (112) of the first protrusion (11) during installation.

4. The filter device according to claim 3, wherein the second protrusion (12) of the first half-shell (1) is provided with a recessed slot (121) formed thereon; the second snap-in part (331) of the snap-in insert (3) is in a semi-enclosing shape and is provided with a protrusion (3311) protruding outward on the inner side surface thereof; and the protrusion (3311) of the second snap-in part (331) is snapped into the slot (121) of the second protrusion (12) during installation.

5. The filter device according to claim 2, wherein the middle pressing section (31) of the snap-in insert (3) is in a hollow structure.

6. The filter device according to claim 2, wherein ​ The filter core (2) comprises a folded filter material (21) and a rim (22) connected to the outer periphery of the folded filter material (21), the rim (22) has a higher hardness than the folded filter material (21), and the height of the rim (22) exceeds the height of the folded filter material (21); the middle pressing section (31) of the buckle insert (3) is formed with a first bending part (34) at the position connected with the first positioning end (32), and is formed with a second bending part (36) at the position connected with the second positioning end (33); during installation, the first bending part (34) and the second bending part (36) of the buckle insert (3) are pressed against the rim (22) of the filter core (2).

7. The filter device according to claim 2, characterized in that, The second convex edge (12) of the first half shell (1) is formed with a positioning part (13) protruding upward; the second positioning end (33) of the buckle insert (3) is formed with a positioning frame (35); during installation, the positioning part (13) is inserted into the positioning frame (35) and abuts against the edge of the positioning frame (35).

8. A buckle insert for filter device assembly, characterized in that, The buckle insert (3) comprises a middle pressing section (31) for abutting against a filter core, and a first positioning end (32) and a second positioning end (33) connected to both ends of the middle pressing section (31), the first positioning end (32) has a first buckle (321) capable of being connected with a first side wall of one half shell of a shell of a filter device, and the second positioning end (33) has a second buckle (331) capable of being connected with a second side wall of one half shell of the shell of the filter device.

9. The buckle insert for filter device assembly according to claim 8, characterized in that, The first buckle (321) of the buckle insert (3) is in a half-enclosing shape, and is provided with an upwardly bent barb at the end of the first buckle (321).

10. The buckle insert for filter device assembly according to claim 9, characterized in that, The second buckle (331) of the buckle insert (3) is in a half-enclosing shape, and is formed with a protruding bump (3311) on the inner side of the second buckle (331).

11. The buckle insert for filter device assembly according to claim 8, characterized in that, The middle pressing section (31) of the buckle insert (3) is in a hollow structure.

12. The buckle insert for filter device assembly according to claim 8, characterized in that, The middle pressing section (31) of the buckle insert (3) is formed with a first bending part (34) at the position connected with the first positioning end (32), and is formed with a second bending part (36) at the position connected with the second positioning end (33).

13. The buckle insert for filter device assembly according to claim 8, characterized in that, The second positioning end (33) of the buckle insert (3) is formed with a positioning frame (35).

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