Frame structure based on installation and fixation of filter paper net

By designing a snap-fit ​​connection structure for the filter screen's bottom frame and cover frame, the problem of unstable installation of the fan inlet filter screen was solved, achieving filter screen stability and convenient replacement.

CN223874698UActive Publication Date: 2026-02-06TONGXIANG FUHONG PLASTIC IND CO LTD
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Patent Information

Application Number
CN202520543935.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-06
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

In existing technologies, the filter screen is not securely installed at the fan inlet, making replacement inconvenient.

Method used

A frame structure including a filter screen base frame and a cover frame is designed. The filter screen is fixed by snap-fit ​​and limiting blocks. The base frame and cover frame are provided with buckle grooves and protruding buckle strips. The cross-section of the filter screen buckle is an 'S' shaped multi-fold structure, and the ventilation holes are honeycomb-shaped.

Benefits of technology

This technology enables stable installation and convenient replacement of the filter screen, improving the ease of installation of the fan inlet filter structure.

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Abstract

The utility model relates to a framework structure based on installation and fixation of a filter paper net, which belongs to the technical field of fan filter equipment and comprises a filter screen bottom framework, a filter screen cover framework sleeved with the filter screen bottom framework in a clamping and embedding manner is arranged at the upper end of the filter screen bottom framework, and the filter paper net is arranged between the filter screen bottom framework and the filter screen cover framework. The filter screen bottom frame comprises a bottom frame plate, bottom frame long side plates integrally bent and formed with the bottom frame plate are arranged on the front side and the rear side of the bottom frame plate, bottom frame short side plates integrally bent and formed with the bottom frame plate are arranged on the left side and the right side of the bottom frame plate, and a plurality of pairs of limiting insertion blocks distributed in a mirror image mode are arranged on the inner walls of the bottom frame short side plates. And a filter paper net buckle inserted and embedded with the limiting insertion block and the filter paper net is arranged on the limiting insertion block. The filter has the characteristics of simple structure, good structural stability and convenience in replacement of the filter screen. The problem of installation of the filter screen is solved. Installation of the filtering structure at the air inlet of the fan is achieved, and convenience of replacement of the filtering net is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fan filter equipment technical field, concretely relates to a frame structure based on filter paper net installation fixed. BACKGROUND

[0002] Fan is relied on inputted mechanical energy, improves gas pressure and sends gas and is a kind of driven fluid machinery. Fan is the customary appellation of gas compression and gas conveying machinery, commonly called fan includes ventilator, air blower, wind turbine. The main structural components of fan are impeller, casing, air inlet, support, motor, pulley, coupling, silencer, driving part (bearing) etc.

[0003] Fan is widely used in ventilation, dust removal and cooling of factory, mine, tunnel, cooling tower, vehicle, ship and building, ventilation and air intake of boiler and industrial furnace;Cooling and ventilation in air conditioning equipment and household appliance equipment;Grain drying and selection, wind tunnel air source and air cushion ship inflation and propulsion etc. Directly install filter screen in air inlet, there is the problem of filter screen not firm. SUMMARY

[0004] The utility model mainly solves the deficiency in prior art, provides a frame structure based on filter paper net installation fixed, it has simple structure, structural stability good and the characteristics such as filter screen replacement convenient. Solve the problem of filter screen installation. Realize the installation of filter structure of fan air inlet, improve the convenience of filter screen replacement.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0006] A frame structure based on filter paper net installation fixed, including filter screen bottom frame, the filter screen bottom frame upper end is equipped with with filter screen bottom frame clamping and embedding type nest connection filter screen cover frame, the filter screen bottom frame with filter screen cover frame between is equipped with filter paper net. The filter screen bottom frame includes bottom frame plate, the bottom frame plate both sides are equipped with with bottom frame long side plate and bottom frame plate integral bending forming, the bottom frame plate both sides are equipped with with bottom frame short side plate and bottom frame plate integral bending forming, the bottom frame short side plate inner wall is equipped with with a plurality of pairs of mirror image distribution limit insert block, the limit insert block is equipped with with filter paper net snap and limit insert block, filter paper net and inserts into the filter paper net buckle.

[0007] As preferred, the filter screen cover frame includes cover plate, the cover plate is equipped with with cover plate side frame and cover plate integral bending forming, the cover plate side frame four sides inner wall is equipped with with a plurality of buckle grooves.

[0008] As preferred, the bottom frame long side plate and the filter screen are integrally provided with a filter screen pressing plate between the bottom frame long side plate and the filter screen.

[0009] As preferred, the bottom frame long side plate and the filter screen are integrally provided with a filter screen pressing plate between the bottom frame long side plate and the filter screen.

[0010] As preferred, the filter screen is provided with a honeycomb structure.

[0011] As preferred, the cover plate side frame is provided with a dismounting finger slot in the middle of the two side edges.

[0012] As preferred, the filter paper screen buckle is provided with an "S" shape multi-fold edge structure.

[0013] The utility model discloses can reach following effect:

[0014] The utility model discloses a frame structure based on filter paper screen installation and fixation, compared with prior art, has simple structure, structural stability is good and the characteristics such as filter screen replacement convenient. The problem of filter screen installation is solved. The installation of the filter structure of the air inlet of the fan is realized, and the convenience of filter screen replacement is improved. DRAWINGS

[0015] Figure 1 It is the side view structure schematic diagram of the utility model.

[0016] Figure 2 It is the top view structure schematic diagram of the utility model.

[0017] Figure 3 It is the structure schematic diagram of filter screen bottom frame in the utility model.

[0018] Figure 4 It is the structure schematic diagram of filter screen cover frame in the utility model.

[0019] Figure 5 It is the structure schematic diagram of filter paper screen buckle in the utility model.

[0020] Figure 6 It is the structure schematic diagram of filter paper screen in the utility model.

[0021] In the drawing: filter screen bottom frame 1, filter screen cover frame 2, filter paper screen 3, bottom frame plate 4, bottom frame long side plate 5, paper screen pressing plate 6, filter paper screen buckle 7, bottom frame short side plate 8, limiting plug 9, convex clamping strip 10, ventilation hole 11, cover plate side frame 12, cover plate 13, buckle slot 14, dismounting finger slot 15. CONCRETE IMPLEMENTING METHOD

[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figures 1-6 As shown, a frame structure based on the installation and fixing of filter paper mesh includes a filter mesh bottom frame 1, a filter mesh cover frame 2 that is snapped into the upper end of the filter mesh bottom frame 1, and a filter paper mesh 3 between the filter mesh bottom frame 1 and the filter mesh cover frame 2. The filter mesh bottom frame 1 includes a bottom frame plate 4, with long side plates 5 integrally bent and formed on both the front and rear sides of the bottom frame plate 4, and short side plates 8 integrally bent and formed on both the left and right sides of the bottom frame plate 4. The inner wall of each short side plate 8 has two pairs of mirror-distributed limiting blocks 9, and the limiting blocks 9 have filter paper mesh buckles 7 that are inserted into the limiting blocks 9 and the filter paper mesh 3. The filter paper mesh buckles 7 have an "S"-shaped multi-folded structure in cross-section. The filter screen cover frame 2 includes a cover plate 13, on which a cover plate side frame 12 is integrally bent and formed with the cover plate 13. Disassembly finger grooves 15 are provided in the middle of both sides of the cover plate side frame 12. Several snap-fit ​​grooves 14 are provided on the inner walls of all four sides of the cover plate side frame 12. Several protruding clips 10, corresponding to and interlocking with the snap-fit ​​grooves 14, are provided on the outer end face of the long side plate 5 and the outer end face of the short side plate 8 of the bottom frame. Ventilation holes 11 are provided on both the bottom frame plate 4 and the cover plate 13, and the ventilation holes 11 have a honeycomb structure. A filter screen pressing plate 6, integral with the long side plate 5 of the bottom frame and pressed against the filter paper mesh 3, is provided between the short side plate 8 of the bottom frame and the ventilation holes 11.

[0024] In summary, this frame structure based on the fixed installation of filter paper mesh features simple structure, good structural stability, and convenient filter replacement. It solves the problem of filter installation and allows the filter structure to be installed at the air inlet of the fan, improving the ease of filter replacement.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A frame structure based on mounting of a filter paper web, characterized by: The utility model provides a filter screen frame, including filter screen bottom frame (1), filter screen bottom frame (1) upper end is equipped with with filter screen cover frame (2) of filter screen bottom frame (1) with filter screen bottom frame (1) card-embedded type nest joint, filter screen bottom frame (1) with filter screen cover frame (2) between be equipped with filter paper screen (3), filter screen bottom frame (1) including bottom frame board (4), bottom frame board (4) both sides are equipped with with bottom frame long side board (5) of bottom frame board (4) integral bending forming, bottom frame board (4) both sides are equipped with with bottom frame short side board (8) of bottom frame board (4) integral bending forming, bottom frame short side board (8) inner wall is equipped with with a plurality of pairs of mirror image distribution's limit insert block (9), limit insert block (9) on be equipped with with filter paper screen buckle (7) of limit insert block (9), filter paper screen (3) insert-embedded type nest joint.

2. The frame structure based on mounting of a filter paper web according to claim 1, characterized in that Filter screen cover frame (2) including cover plate (13), cover plate (13) on be equipped with with cover plate side frame (12) of cover plate (13) integral bending forming, cover plate side frame (12) four sides inner wall all be equipped with with a plurality of buckle groove (14).

3. The frame structure based on mounting of a filter paper web according to claim 2, characterized in that Bottom frame long side board (5) outside end face on, bottom frame short side board (8) outside end face on all be equipped with with a plurality of with buckle groove (14) corresponding insert-embedded type nest joint's convex buckle strip (10), bottom frame board (4), cover plate (13) all be equipped with with ventilation hole (11).

4. The frame structure based on mounting of a filter paper web according to claim 3, characterized in that Bottom frame short side board (8) with ventilation hole (11) between be equipped with with bottom frame long side board (5) integral and with filter paper screen (3) pressure joint's filter screen pressure plate (6).

5. The frame structure based on mounting of a filter paper web according to claim 3, characterized in that: Ventilation hole (11) is honeycomb structure.

6. The frame structure based on mounting of a filter paper web according to claim 2, characterized in that: Cover plate side frame (12) both sides side edge middle part all be equipped with with dismounting finger groove (15).

7. The frame structure based on mounting of a filter paper web according to claim 1, characterized in that: Filter paper screen buckle (7) cross section is '' S '' shape multiple edge structure.