A new filter frame

Abstract

This utility model discloses a novel filter frame, including a fixed frame. The fixed frame includes two horizontal supports and a set of vertical supports arranged along the length of the horizontal supports. The horizontal supports are respectively disposed at both ends of the vertical supports. The horizontal supports and vertical supports are locked together by bolts and nuts to form the fixed frame. The fixed frame connects to a set of filter frames, which are evenly arranged along the length of the horizontal supports of the fixed frame. The filter frames and the fixed frame are locked together by bolts and nuts. The filter frame is a square frame. This utility model relates to the field of filter frame equipment technology, specifically to a novel filter frame in which the fixed frame and the filter frame are detachably connected by bolts and nuts, facilitating installation, disassembly, and transportation. The filter frame and the connecting strip are integrally formed, eliminating the problem of air leakage from gaps in separate connections. Combined with the sealing design between the frames, a sealing interface is formed by elastic deformation filling the gaps.

Description

Technical Field

[0001] This utility model relates to the technical field of filter frame equipment, and more specifically, to a novel filter frame. Background Technology

[0002] In building structures, atriums serve as crucial channels for indoor and outdoor air circulation, and their air quality directly impacts the indoor environment. Currently, atriums often require filtration devices to intercept dust, impurities, and other pollutants. However, existing filter frames suffer from several technical drawbacks: Existing embedded filter frames for building atriums are welded, consisting of prefabricated grooves around the perimeter, welded 30*30mm square tubing for horizontal reinforcing ribs, and welded M6 steel bars for vertical reinforcing ribs, spaced 150mm-200mm apart. The disadvantages of this design are: the prefabricated grooves around the perimeter need to be cut to the required length, resulting in significant cutting deviations at manholes; the embedded frame has poor sealing, allowing air to leak through the surrounding gaps; and replacing existing filter frames is difficult and cumbersome.

[0003] Therefore, there is an urgent need for a ceiling filter frame that is easy to install, structurally stable, corrosion-resistant, and has high filtration efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new type of filter frame. The fixed frame and the filter frame are detachably connected by bolts and nuts, which is convenient for installation, disassembly and transportation. The filter frame and the connecting strip are integrally formed to eliminate the problem of air leakage from the gaps of the separate connection. With the sealing design between the frames, the gaps are filled by elastic deformation to form a sealing interface.

[0005] A novel filter frame includes a fixed frame comprising two horizontal supports and a set of vertical supports arranged along the length of the horizontal supports. The horizontal supports are respectively disposed at both ends of the vertical supports. The horizontal and vertical supports are fastened together by bolts and nuts to form the fixed frame. The fixed frame connects to a set of filter frames arranged uniformly along the length of the horizontal supports of the fixed frame. The filter frames and the fixed frame are fastened together by bolts and nuts. The filter frame is a square frame, and a connecting strip is fixedly disposed on the outer side of the filter frame. The connecting strip is fastened to the fixed frame by bolts and nuts.

[0006] Furthermore, the connecting strip has a set of first mounting holes arranged in a row, and the fixed frame has several second mounting holes, so that the bolt can pass through the first mounting holes and the corresponding second mounting holes and then be screwed with a nut.

[0007] Furthermore, both the fixing frame and the filter frame are bent parts made of galvanized steel sheet.

[0008] Furthermore, the filter frame and the connecting strip are integrally formed.

[0009] Furthermore, it also includes reinforcing rods, which are evenly arranged along the height direction of the filter frame. There are several reinforcing rods, and the reinforcing rods are fixedly connected to the inside of the bent side within the filter frame.

[0010] Furthermore, the reinforcing rod and the filter frame are connected by welding.

[0011] Furthermore, a seal is provided between the filter frame and the fixing frame to increase the sealing performance.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are:

[0013] The fixed frame and filter frame are detachably connected by bolts and nuts. The combination of horizontal and vertical supports and the assembly of the filter frame do not require complicated welding processes. They can be disassembled and packaged during transportation to reduce transportation volume. On-site installation is carried out with precise positioning through standardized mounting holes, which greatly shortens the installation time. Damaged filter frames or components can be replaced individually without the need for complete disassembly, reducing maintenance costs.

[0014] The square filter frame is compatible with conventional filter materials. The connecting strips are fastened to the fixed frame through evenly distributed mounting holes to prevent the filter frame from shaking. The galvanized sheet bending process utilizes the cold work hardening effect to improve the frame rigidity. Combined with the reinforcing rod design inside the filter frame, it effectively resists deformation caused by its own weight and airflow impact by dispersing the force and increasing the moment of inertia of the cross section, ensuring the structural stability during long-term use.

[0015] The fixed frame and filter frame are made of galvanized steel sheet. The zinc layer forms an electrochemical protective barrier, isolating corrosive media such as air and moisture, significantly improving the corrosion resistance of the frame in the humid environment of the courtyard, and extending the service life by 3-5 years compared with ordinary steel frames.

[0016] The filter frame and connecting strip are integrally molded, eliminating the problem of air leakage due to gaps in the separate connection. Combined with the sealing design between the frames, the gaps are filled by elastic deformation to form a sealed interface. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0018] Figure 1The three-dimensional representation of this utility model Figure 1 ;

[0019] Figure 2 For the present utility model Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 The three-dimensional representation of this utility model Figure 2 ;

[0021] Figure 4 For the present utility model Figure 3 A magnified view of a section at point B in the middle;

[0022] In the diagram: 1. Fixed frame; 101. Horizontal support; 102. Vertical support; 2. Filter frame; 3. Connecting strip; 4. First mounting hole; 5. Second mounting hole; 6. Reinforcing rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] A novel filter frame includes a fixed frame 1. The fixed frame 1 includes two horizontal supports 101 and a set of vertical supports 102 arranged along the length of the horizontal supports 101. The horizontal supports 101 are respectively disposed at both ends of the vertical supports 102. The horizontal supports 101 and the vertical supports 102 are fastened together by bolts and nuts to form the fixed frame 1. The fixed frame 1 is connected to a set of filter frames 2, which are evenly arranged along the length of the horizontal supports 101 of the fixed frame 1. The filter frames 2 and the fixed frame 1 are fastened together by bolts and nuts. The filter frames 2 are square frames, and connecting strips 3 are fixedly disposed on the outer side of the filter frames 2. The connecting strips and the fixed frame 1 are fastened together by bolts and nuts.

[0025] In this embodiment, the horizontal support 101 and the vertical support 102 are combined into the main body of the fixed frame 1 by means of detachable fastening with bolts and nuts. Then, the filter frame 2 is evenly assembled on the fixed frame 1 by means of the same detachable connection. The filter frame 2 adopts a square structure design. The connecting strip 3 on its outer side serves as a transition connector to achieve secondary fastening with the fixed frame 1. The detachable connection method facilitates transportation, on-site installation and subsequent component replacement. The even arrangement of the filter frame 2 ensures full coverage of the filtration area. The square frame is suitable for the shape and specifications of conventional filter materials. The connecting strip 3 enhances the stability of the connection between the filter frame 2 and the fixed frame 1, preventing the filter frame 2 from shaking or shifting during use.

[0026] The connecting strip 3 has a set of first mounting holes 4 arranged in a row, and the fixed frame 1 has a number of second mounting holes 5. The bolt can pass through the first mounting holes 4 and the corresponding second mounting holes 5 and then be screwed with a nut.

[0027] In this embodiment, standardized mounting holes are provided on the connecting strip 3 and the fixed frame 1 respectively. Precise positioning is achieved by using the clearance fit between the bolt and the mounting hole. The axial clamping force is generated by the thread engagement of the bolt and nut, which tightly fits and fixes the two components together. The uniform distribution of mounting holes ensures that the force is evenly distributed on the connecting surface, avoiding local stress concentration, ensuring the assembly accuracy of the connecting strip 3 and the fixed frame 1, and reducing installation errors. The evenly distributed mounting holes enhance the connection strength, prevent loosening caused by excessive force on a single connection point, and provide convenience for mass production and standardized installation, thereby improving assembly efficiency.

[0028] Both the fixed frame 1 and the filter frame 2 are bent parts made of galvanized steel sheet. The zinc layer on the surface of the galvanized steel sheet forms an electrochemical protective barrier, which can isolate corrosive media such as air and moisture and delay the corrosion of the substrate. The bending process causes plastic deformation of the sheet through cold working to form the required frame cross-sectional shape. The cold work hardening effect of the material is used to improve the structural strength of the frame. The galvanized steel sheet material significantly improves the corrosion resistance of the fixed frame 1 and the filter frame 2, extending the service life of the product in humid or outdoor environments. The bending process allows for precise control of the frame dimensions, simplifies the production process, and the formed frame has high structural rigidity, which can withstand the weight of the filter material and the airflow pressure.

[0029] The filter frame 2 and the connecting strip 3 are integrally formed. The use of an integral forming process (such as metal stamping or bending) makes the filter frame 2 and the connecting strip 3 a continuous, integral structure, eliminating connection gaps and assembly tolerances between them. This avoids weak points caused by separate connections between the filter frame 2 and the connecting strip 3, improving the overall structure's resistance to deformation; it also reduces assembly steps and the use of connectors, lowering production and assembly costs, and eliminating potential air leakage problems caused by connection gaps, indirectly improving filtration efficiency.

[0030] It also includes reinforcing rods 6, which are evenly distributed along the height direction of the filter frame 2. There are several reinforcing rods 6, which are fixedly connected to the inside of the bending side of the filter frame 2. The addition of reinforcing rods 6 inside the bending side of the filter frame 2 forms a support structure similar to "ribs". According to the principle of mechanics, the longitudinal and lateral forces on the frame are distributed and transmitted. By increasing the moment of inertia of the cross section, the bending and shear resistance of the frame in the height direction is improved, enhancing the structural stability of the filter frame 2 and preventing it from bending and deforming due to its own weight or airflow impact during long-term use. The evenly distributed reinforcing rods 6 ensure that the strength of each area of ​​the frame is balanced, adapting to the strength requirements of the large-size filter frame 2 and extending the service life of the frame.

[0031] The reinforcing rod 6 and the filter frame 2 are connected by welding. Welding involves melting and fusing the connection between the reinforcing rod 6 and the filter frame 2 at high temperature. After cooling, a metallurgical bond is formed, making the two a unified whole with consistent mechanical properties and a connection strength close to that of the base material.

[0032] A sealing element for increasing sealing is provided between the filter frame 2 and the fixed frame 1. The sealing element is a sealing ring or a sealing strip. The sealing element fills the gap between the filter frame 2 and the fixed frame 1 by its own elastic deformation and forms a sealing interface through contact pressure.

[0033] The method of using this utility model is as follows: Based on the dimensions of the atrium, prepare a corresponding number of horizontal supports 101, vertical supports 102, filter frames 2, reinforcing rods 6, bolts, nuts, and seals. Check each component for deformation or damage, ensuring the galvanized layer is intact and the mounting holes are unblocked. Place the two horizontal supports 101 at both ends of the vertical supports 102, aligning the connecting holes of the horizontal supports 101 and vertical supports 102. Insert bolts and screw nuts in, tightening evenly until all supports fit tightly together, forming a rectangular fixed frame 1. If the atrium span is large, the number of vertical supports 102 can be increased to enhance stability. Inside the bend of the filter frame 2, evenly place the reinforcing rods 6 along the height direction. Fix the reinforcing rods 6 to the filter frame 2 by welding, ensuring the weld points are firm and without any incomplete welds. After welding and cooling... Pre-install sealing elements on the connecting strips 3 on the outside of the filter frame 2, ensuring that the sealing elements fit the edge of the strips without wrinkles. Arrange the pre-fabricated filter frame 2 evenly along the length of the transverse support 101 of the fixed frame 1, so that the first mounting holes 4 on the connecting strips 3 correspond one-to-one with the second mounting holes 5 on the fixed frame 1. Insert bolts into the aligned mounting holes, put on nuts, and tighten them gradually and evenly until the filter frame 2 and the fixed frame 1 fit tightly together, and the sealing elements produce elastic deformation to achieve a seal. Install the assembled filter frame 2 at the preset installation position in the ceiling of the building using expansion bolts and other fasteners. Check whether all connections are tight and whether the filter frame 2 is horizontally arranged. Start the ceiling ventilation system and observe whether the filter frame 2 is stable under the action of airflow and whether there is any air leakage. If necessary, tighten the loose bolts again.

[0034] The above-disclosed embodiments are merely specific examples of this utility model. However, this utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A novel filter frame, comprising a fixed frame (1), characterized in that, The fixed frame (1) includes two horizontal supports (101) and a set of vertical supports (102) arranged along the length of the horizontal supports (101). The horizontal supports (101) are respectively set at both ends of the vertical supports (102). The horizontal supports (101) and the vertical supports (102) are locked together by bolts and nuts to form the fixed frame (1). The fixed frame (1) is connected to a set of filter frames (2) arranged in a uniform manner. The filter frames (2) are evenly arranged along the length of the horizontal supports (101) of the fixed frame (1). The filter frames (2) and the fixed frame (1) are locked together by bolts and nuts. The filter frames (2) are square frames. A connecting strip (3) is fixedly set on the outside of the filter frames (2). The strip and the fixed frame (1) are locked together by bolts and nuts.

2. The novel filter frame according to claim 1, characterized in that, The connecting strip (3) has a set of first mounting holes (4) arranged in a row, and the fixed frame (1) has several second mounting holes (5). The bolt can pass through the first mounting hole (4) and the corresponding second mounting hole (5) and then be screwed with a nut.

3. The novel filter frame according to claim 1, characterized in that, Both the fixed frame (1) and the filter frame (2) are bent parts made of galvanized steel.

4. A novel filter frame according to claim 1, characterized in that, The filter frame (2) and the connecting strip (3) are integrally formed.

5. A novel filter frame according to claim 3, characterized in that, It also includes reinforcing rods (6), which are evenly arranged along the height direction of the filter frame (2). There are several reinforcing rods (6), and the reinforcing rods (6) are fixedly connected to the inside of the bent side of the filter frame (2).

6. A novel filter frame according to claim 5, characterized in that, The reinforcing rod (6) and the filter frame (2) are connected by welding.

7. A novel filter frame according to claim 1, characterized in that, A seal is provided between the filter frame (2) and the fixed frame (1) to increase the sealing performance.

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