A quick-mount filter frame

Abstract

A quick-installation filter frame includes an outer frame, an inner frame that is snapped into the inner frame, a spring strip installed inside the inner frame, the lower end of the spring strip being fixedly connected to the inner frame, and a guide wheel rotatably mounted on the upper end of the spring strip. A filter is fixedly installed inside the inner frame. The outer frame includes a first frame body, and a fastener block is fixedly connected inside the first frame body. During installation, the elastic force of the spring strip acts on the guide wheel, pressing the guide wheel inside the outer frame. The guide wheel rolls along the inner frame, reducing the installation resistance of the inner frame, improving the smoothness of the inner frame installation, and thus increasing the installation speed of the inner frame.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, and in particular relates to a quick-installation filter frame. Background Technology

[0002] A ceiling filter is a professional air filtration device installed on the ceiling of a building. It typically serves as the terminal filtration unit in an HVAC system or as a standalone air purification device. Using high-efficiency filter materials (such as polyester fiber gradient density structures and HEPA / ULPA filter media), it captures harmful substances such as dust, pollen, bacteria, and viruses from the air, providing clean air. It offers advantages such as easy installation, no floor space required, and uniform airflow distribution. It is widely used in hospitals, clean rooms, automotive painting workshops, commercial offices, and homes, significantly improving indoor air quality and ensuring environmental cleanliness and human health.

[0003] Because the filter body is relatively thick, it is difficult to ensure that the height is parallel to the outer frame when manually connecting it. When the two are at an angle, the resulting friction is very large, and it is necessary to shake it back and forth to install it into the interior, which causes the installation speed of conventional filter outer frames to be relatively slow.

[0004] To address this issue, we propose a quick-installation filter frame. Utility Model Content

[0005] The purpose of this invention is to solve the problem of slow installation speed of conventional filter frames, and to propose a filter frame that can be installed quickly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A quick-installation filter frame includes an outer frame, an inner frame that is snapped into the inner frame, a spring strip installed inside the inner frame, the lower end of the spring strip being fixedly connected to the inner frame, and a guide wheel rotatably mounted on the upper end of the spring strip. A filter is fixedly installed inside the inner frame. When the filter is operated to insert the inner frame into the outer frame, the spring force of the spring strip acts on the guide wheel, pressing the guide wheel inside the outer frame. The guide wheel rolls along the inner frame, reducing installation resistance and improving the smoothness of the inner frame installation, thereby increasing the installation speed.

[0007] Preferably, the outer frame includes a first frame body, and a fastener is fixedly connected inside the first frame body. After the inner frame is pushed into the first frame body, it is fastened to the inner frame using the fastener, so that the inner frame is kept inside the outer frame, which facilitates the fastening and assembly of the outer frame and the inner frame.

[0008] Preferably, the inner frame includes a second frame body, the side of which is provided with a first spring piece, and the lower part of the first spring piece is provided with a fastening groove, the fastening groove being matched with a fastening block. When the second frame body is inserted into the first frame body and the inner frame is pushed upward, the second frame body enters the first frame body until the first spring piece uses its elasticity to make the fastening groove engage with the fastening block.

[0009] Preferably, the inner frame further includes an operating strip, which is fixedly connected to the lower end of the first spring piece. By pressing the operating strip inward with a finger, the operating strip acts on the first spring piece, causing the first spring piece to retract, thereby disengaging the buckle from the buckle block and facilitating the removal of the inner frame.

[0010] Preferably, the spring bar includes a second spring piece, the lower end of which is fixedly connected to a connecting block. Two connecting blocks of the spring bars are fixedly connected to the first spring piece, and the connecting blocks of the other two spring bars are fixedly connected to the second frame. A bearing is fixedly connected to the upper end of the second spring piece, and the guide wheel is rotatably mounted within the bearing. The bearing guides the rotation of the guide wheel.

[0011] Preferably, the filter includes a filter body, a protective net is fixedly connected to the lower end of the filter body, the protective net is fixedly connected to the lower end of the second frame, and the upper end of the filter body is fixedly connected to the upper inner end of the second frame. The protective net protects the filter body.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. When inserting the inner frame into the outer frame using the filter, the elastic force of the spring bar acts on the guide wheel, pressing the guide wheel into the outer frame. The guide wheel rolls along the outer frame, reducing the installation resistance of the inner frame, improving the smoothness of the inner frame installation, and thus increasing the installation speed of the inner frame.

[0013] 2. After pushing the inner frame into the first frame, use the fastener to fasten the inner frame to keep the inner frame inside the outer frame, which facilitates the fastening and assembly of the outer and inner frames.

[0014] 3. Press the operating bar inward with your fingers. The operating bar acts on the first spring piece, causing the first spring piece to retract inward, thereby disengaging the buckle from the buckle block and facilitating the removal of the inner frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the outer frame structure of this utility model; Figure 3 This is a schematic diagram of the inner frame structure of this utility model; Figure 4 This is a schematic diagram of the elastic bar structure of this utility model; Figure 5This is a schematic diagram of the filter structure of this utility model.

[0016] In the diagram: 1. Guide wheel; 2. Outer frame; 3. Inner frame; 4. Spring bar; 5. Filter; 21. First frame; 22. Fastening block; 31. Second frame; 32. First spring piece; 33. Fastening groove; 34. Operating bar; 41. Second spring piece; 42. Connecting block; 43. Bearing; 51. Filter body; 52. Protective net. Detailed Implementation

[0017] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0018] like Figure 1 As shown, a quick-installation filter frame includes an outer frame 2, an inner frame 3 that is snapped into the inner frame 2, a spring strip 4 installed inside the inner frame 3, the lower end of the spring strip 4 being fixedly connected to the inner frame 3, and a guide wheel 1 rotatably mounted on the upper end of the spring strip 4. A filter 5 is fixedly installed inside the inner frame 3. When the filter 5 is operated, the inner frame 3 is inserted into the outer frame 2. During this process, the elastic force of the spring strip 4 acts on the guide wheel 1, causing the guide wheel 1 to press against the inner frame 2. The guide wheel 1 rolls along the inner frame 2, reducing the installation resistance of the inner frame 3.

[0019] like Figure 1 and 2 As shown, the outer frame 2 includes a first frame body 21, and a fastener 22 is fixedly connected inside the first frame body 21. After the inner frame 3 is pushed into the first frame body 21, the fastener 22 is used to fasten the inner frame 3 to the outer frame 2, so that the inner frame 3 is kept inside the outer frame 2.

[0020] like Figure 1 , 2 As shown in Figure 3, the inner frame 3 includes a second frame 31. The side of the second frame 31 is provided with a first spring piece 32, and the lower part of the first spring piece 32 is provided with a fastening groove 33, which is matched with the fastening block 22. When the second frame 31 is inserted into the first frame 21 and the inner frame 3 is pushed upward, the second frame 31 enters the first frame 21 until the first spring piece 32 uses its elasticity to make the fastening groove 33 engage with the fastening block 22.

[0021] like Figure 1 , 2 As shown in Figure 3, the inner frame 3 also includes an operating strip 34, which is fixedly connected to the lower end of the first spring piece 32. By pressing the operating strip 34 inward with a finger, the operating strip 34 acts on the first spring piece 32, causing the first spring piece 32 to retract inward, thereby disengaging the buckle groove 33 from the buckle block 22.

[0022] like Figure 1 , 3As shown in Figure 4, the spring bar 4 includes a second spring piece 41, the lower end of which is fixedly connected to a connecting block 42. Two connecting blocks 42 of the spring bars 4 are fixedly connected to the first spring piece 32, and the other two connecting blocks 42 of the spring bars 4 are fixedly connected to the second frame 31. A bearing 43 is fixedly connected to the upper end of the second spring piece 41, and a guide wheel 1 is rotatably mounted within the bearing 43. The bearing 43 guides the guide wheel 1 to rotate.

[0023] like Figure 1 , 3 As shown in Figure 5, the filter 5 includes a filter body 51. A protective net 52 is fixedly connected to the lower end of the filter body 51. The protective net 52 is fixedly connected to the lower end of the second frame 31. The upper end of the filter body 51 is fixedly connected to the upper inner end of the second frame 31. The protective net 52 protects the filter body 51.

[0024] Working principle: The filter 5 is operated to insert the inner frame 3 into the outer frame 2. During the process, the elastic force of the spring bar 4 acts on the guide wheel 1, so that the guide wheel 1 is pressed into the outer frame 2. The guide wheel 1 rolls along the outer frame 2 to reduce the installation resistance of the inner frame 3.

[0025] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0026] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A quick-installation filter frame, characterized in that: Includes an outer frame (2), an inner frame (3) is fastened and matched inside the outer frame (2), an elastic strip (4) is installed inside the inner frame (3), the lower end of the elastic strip (4) is fixedly connected to the inner frame (3), a guide wheel (1) is rotatably installed on the upper end of the elastic strip (4), and a filter (5) is fixedly installed inside the inner frame (3).

2. The quick-installation filter frame according to claim 1, characterized in that: The outer frame (2) includes a first frame (21), and a fastener (22) is fixedly connected inside the first frame (21).

3. The quick-installation filter frame according to claim 2, characterized in that: The inner frame (3) includes a second frame (31), the side of the second frame (31) is provided with a first spring piece (32), the lower part of the first spring piece (32) is provided with a fastening groove (33), and the fastening groove (33) is fastened and matched with the fastening block (22).

4. A quick-installation filter frame according to claim 3, characterized in that: The inner frame (3) also includes an operation bar (34), which is fixedly connected to the lower end of the first spring (32).

5. A quick-installation filter frame according to claim 3, characterized in that: The spring bar (4) includes a second spring piece (41), and a connecting block (42) is fixedly connected to the lower end of the second spring piece (41). The connecting blocks (42) of two spring bars (4) are fixedly connected to the first spring piece (32), and the connecting blocks (42) of the other two spring bars (4) are fixedly connected to the second frame (31). A bearing (43) is fixedly connected to the upper end of the second spring piece (41), and the guide wheel (1) is rotatably installed in the bearing (43).

6. A quick-installation filter frame according to claim 3, characterized in that: The filter (5) includes a filter body (51), a protective net (52) is fixedly connected to the lower end of the filter body (51), the protective net (52) is fixedly connected to the lower end of the second frame (31), and the upper end of the filter body (51) is fixedly connected to the upper inner end of the second frame (31).

Images