Filter frame structure capable of enhancing stability of filter element installation

Abstract

The application relates to a filter frame structure capable of enhancing the installation stability of a filter core, which comprises an inner frame provided with a push plate sliding groove on two side walls, an outer frame provided with a sliding groove on two inner walls, and a push plate guide rail arranged between the inner frame and the outer frame. The push plate guide rail comprises a filter core push plate, a sliding plate, and an inner push guide plate arranged between the filter core push plate and the sliding plate. The filter core push plate is arranged in the inner frame, the sliding plate is slidingly embedded in the sliding groove, and the inner push guide plate is slidingly embedded in the push plate sliding groove. Compared with the prior art, the filter core push plate and the sliding plate gradually increase in distance, so that the installation force in the length direction of the filter core is converted into extrusion force in the width direction of the filter core, the filter core is tightly combined with the filter frame structure, the installation stability between the two is ensured, and the generation of shaking and noise is avoided. Meanwhile, the tolerance in the width direction of the filter core is higher, and the adaptability is better.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air filters and relates to a filter frame structure capable of improving the installation stability of filter elements. BACKGROUND

[0002] With the popularization and promotion of private cars, people's attention to the driving environment in the car is gradually increasing. The air conditioner in the car generally adsorbs harmful impurities in the car through built-in filter elements and air circulation in the car, thereby protecting the health of the people in the car. Therefore, the filtering capacity of the air conditioner filter element has an important influence on the driving environment, and a well-sealed and installed air conditioner filter element is an important prerequisite for filtering efficiency. In the traditional design, the filter element is installed in the air conditioner shell, and the basic filter element for vehicles is mostly composed of a folded paper and a frame. In the production process, the tolerance size of the raw material frame is relatively easy to control, but is affected by the width of the folded paper, the thickness of the glue and the thickness of the frame, resulting in too large width tolerance of the assembly part and difficulty in control. In addition, the size of the parts produced by different manufacturers will inevitably differ, and the difference is generally 2-3 mm, while the tolerance of the plastic shell is only about ±0.3 mm. Therefore, when the parts of different manufacturers are installed in the same shell, the situation of being too loose or too tight often occurs. Too loose leads to increased leakage, affecting the filtering effect of the filter element, and too tight leads to difficulty or inability to install. SUMMARY

[0003] The purpose of the application is to provide a filter frame structure capable of improving the installation stability of filter elements, so as to solve the problem of poor installation stability caused by the size mismatch between the filter element and the installation frame.

[0004] The purpose of the application can be achieved by the following technical solutions:

[0005] A filter frame structure capable of improving the installation stability of filter elements, comprising

[0006] an inner frame, push plate sliding grooves are formed through the two side walls of the inner frame, and a filter element is embedded in the inner frame;

[0007] an outer frame in the shape of a Chinese character, sliding grooves are formed in the inner walls of the two sides of the outer frame, and the sliding grooves are inclined outward along the opening direction;

[0008] a push plate guide rail, comprising a filter element push plate, a sliding plate, and an inner push guide plate arranged between the filter element push plate and the sliding plate, the filter element push plate is arranged in the inner frame, the sliding plate is slidingly embedded in the sliding groove, and the inner push guide plate is slidingly embedded in the push plate sliding groove;

[0009] The inner frame and the outer frame are slidingly installed along the sliding groove direction through the push plate guide rail, and the distance between the filter element push plate and the sliding plate gradually increases along the sliding installation direction, so that the filter element push plate extrudes the filter element inward during installation, thereby improving the installation stability.

[0010] Further, the two inner side walls of the inner frame are provided with elastic sealing membranes, and the filter core push plate is wrapped between the corresponding elastic sealing membrane and the inner side wall, so as to avoid the problem of poor sealing caused by the gap between the filter core push plate and the inner frame during installation.

[0011] Further, the inner frame is provided with a filter core installation hole on the front side in the sliding installation direction.

[0012] Further, the inner push guide plate comprises a transverse guide plate arranged in the sliding installation direction and a longitudinal guide plate arranged perpendicularly to the transverse guide plate, and the push plate sliding groove is matched with the transverse guide plate and the longitudinal guide plate, so as to ensure the stability of the sliding direction during the sliding of the inner push guide plate.

[0013] In addition, the transverse guide plate can also act as an airflow barrier plate to avoid the leakage of airflow from the gap between the filter core push plate and the inner frame into the passenger compartment, thereby improving the sealing between the filter core and the filter frame.

[0014] Further, the transverse guide plate is arranged in the middle of the filter core push plate, and the longitudinal guide plate is arranged in multiple and uniformly arranged along the length direction of the transverse guide plate.

[0015] Further, the filter core push plate and the sliding plate are provided with 2-5 longitudinal guide plates and are arranged at equal intervals along the length direction of the transverse guide plate.

[0016] Further, the difference between the rear end spacing and the front end spacing between the filter core push plate and the sliding plate in the sliding installation direction is 1-1.5 mm, and the two side push plate guide rails cooperate with each other, so as to meet the general tolerance requirement of 2-3 mm of the filter core.

[0017] Further, the length and height of the filter core push plate are matched with the length and height of the filter core respectively.

[0018] Further, the sliding groove is arranged on the two side walls in the opening direction.

[0019] Further, the outer frame is provided with a pull handle on the front side outer wall in the sliding installation direction, which facilitates the disassembly and assembly of the inner frame and the outer frame.

[0020] Compared with the prior art, the present application has the following characteristics:

[0021] 1) The filter core push plate and the sliding plate with gradually increasing intermediate spacing of the push plate guide rail convert the installation force in the length direction of the filter core into extrusion force in the width direction of the filter core, so as to tightly fit the filter core and the filter frame structure, ensure the installation stability between them, and avoid the generation of shaking and noise;

[0022] 2) The inner frame width size can be appropriately enlarged according to the needs, so as to avoid the problem that the filter core is too wide to be installed, and the tolerance in the width direction of the filter core is higher, and the filter core produced by different manufacturers has good adaptability;

[0023] 3) Through the extrusion effect and the setting of the elastic sealing film, the sealing problem caused by the size difference between the filter core and the filter frame can also be solved, and the filtering effect is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure diagram of a filter frame structure capable of enhancing the installation stability of a filter core in the embodiment;

[0025] Figure 2 It is an installation diagram of a filter frame structure capable of enhancing the installation stability of a filter core in the embodiment;

[0026] Figure 3 It is a structure diagram of an inner frame;

[0027] Figure 4 It is a structure diagram of an outer frame;

[0028] Figure 5 It is a top view structure diagram of an outer frame;

[0029] Figure 6 It is a structure diagram of a push plate guide rail in perspective;

[0030] Figure 7 It is a top view structure diagram of a push plate guide rail;

[0031] MARK DESCRIPTION IN THE DRAWINGS:

[0032] 1- inner frame, 101- push plate sliding groove, 102- filter core installation hole, 2- filter core, 3- outer frame, 301- sliding groove, 302- pull handle, 4- push plate guide rail, 401- filter core push plate, 402- sliding plate, 403- inner push guide plate, 4031- horizontal guide plate, 4032- vertical guide plate. DETAILED DESCRIPTION

[0033] The present application will be described in detail below in combination with the drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present application, and detailed implementation modes and specific operation processes are given, but the protection scope of the present application is not limited to the following embodiments.

[0034] EMBODIMENT:

[0035] As shown in Figure 1 and Figure 2 , a filter frame structure capable of enhancing the installation stability of a filter core includes an inner frame 1, an outer frame 3, and a push plate guide rail 4. As shown in Figure 3As shown, the two side walls of the inner frame 1 are provided with push plate sliding grooves 101, and the front side is provided with filter core installation holes 102 for the filter core to pass through; the two inner side walls of the inner frame 1 are provided with elastic sealing membranes, and the filter core push plate 401 is wrapped between the corresponding elastic sealing membrane and the inner side wall, so as to avoid the problem of poor sealing due to the gap between the filter core push plate 401 and the inner frame 1 during installation.

[0036] As shown in Figure 4 and Figure 5 shown, the outer frame 3 is in the shape of a Chinese character, and the two inner walls thereof are provided with sliding grooves 301, and the sliding grooves 301 are inclined outward along the opening direction; the front side wall is further provided with a pull handle 302.

[0037] As shown in Figure 6 , the push plate guide rail 4 includes a filter core push plate 401 provided in the inner frame 1 and adapted to the length and width of the filter core 2, a sliding plate 402 slidingly embedded in the sliding groove 301, and an inner push guide plate 403 provided between the filter core push plate 401 and the sliding plate 402 and slidingly embedded in the push plate sliding groove 101; the inner push guide plate 403 includes a transverse guide plate 4031 provided in the middle of the filter core push plate 401 along the sliding installation direction, and three longitudinal guide plates 4032 perpendicular to the transverse guide plate 4031 and arranged at equal intervals along the length direction, and the push plate sliding groove 101 is adapted to the transverse guide plate 4031 and the longitudinal guide plate 4032 to ensure the stability of the sliding direction of the inner push guide plate 403 during sliding.

[0038] As shown in Figure 7 , the difference between the rear end distance and the front end distance between the filter core push plate 401 and the sliding plate 402 is 1.5 mm.

[0039] During operation, the inner frame 1 and the outer frame 3 are slidingly installed along the sliding groove 301 by the push plate guide rail 4, and along the sliding installation direction, the distance between the filter core push plate 401 and the sliding plate 402 gradually increases, so that during installation, the filter core push plate 401 extrudes the filter core 2 inward to improve the installation stability.

[0040] The above description of the embodiments is for the convenience of those skilled in the art to understand and use the invention. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without having to go through creative labor. Therefore, the present application is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art within the scope of the present application without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A filter frame structure that enhances the stability of filter element installation, characterized in that, The filter frame structure comprises An inner frame (1) with push plate sliding grooves (101) on both side walls, and a filter core (2) embedded in the inner frame (1); An outer frame (3) in the shape of a Chinese character "fang", with sliding grooves (301) on both inner walls, and the sliding grooves (301) being inclined outward along the opening direction; A push plate guide rail (4) comprising a filter core push plate (401), a sliding plate (402), and an inner push guide plate (403) between the filter core push plate (401) and the sliding plate (402), wherein the filter core push plate (401) is arranged in the inner frame (1), the sliding plate (402) is slidingly embedded in the sliding groove (301), and the inner push guide plate (403) is slidingly embedded in the push plate sliding groove (101); The inner frame (1) and the outer frame (3) are slidingly installed along the sliding groove (301) through the push plate guide rail (4), and the distance between the filter core push plate (401) and the sliding plate (402) gradually increases along the sliding installation direction, so that the filter core push plate (401) extrudes the filter core (2) inward during installation, thereby improving the installation stability; Both inner side walls in the inner frame (1) are provided with elastic sealing membranes, and the filter core push plate (401) is wrapped between the corresponding elastic sealing membranes and the inner side walls; Along the sliding installation direction, a filter core installation hole (102) is formed in the front side of the inner frame (1) for the filter core to pass through.

2. The filter frame structure according to claim 1, wherein The inner push guide plate (403) comprises a transverse guide plate (4031) arranged along the sliding installation direction, and a longitudinal guide plate (4032) arranged perpendicularly to the transverse guide plate (4031), and the push plate sliding groove (101) is matched with the transverse guide plate (4031) and the longitudinal guide plate (4032).

3. The filter frame structure according to claim 2, wherein The transverse guide plate (4031) is arranged at the middle part of the filter core push plate (401), and the longitudinal guide plate (4032) is arranged in multiple and evenly arranged along the length direction of the transverse guide plate (4031).

4. The filter frame structure according to claim 3, wherein The distance between the filter core push plate (401) and the sliding plate (402) is 1-1.5 mm.

5. The filter frame structure of claim 1, wherein The length and height of the filter core push plate (401) are matched with the length and height of the filter core (2), respectively.

6. The filter frame structure of claim 1, wherein The sliding groove (301) is formed on both inner walls along the opening direction.

7. The filter frame structure of claim 1, wherein Along the sliding installation direction, a pull handle (302) is arranged on the front side outer wall of the outer frame (3).

8. The filter frame structure according to claim 7, wherein ​

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