Impact-resistant air filter

Abstract

The utility model discloses an impact-resistant air filter, relates to the technical field of air filters, and provides the following scheme aiming at the problems that a certain pressure difference exists in a traditional rigidly connected filter screen in the prior art and the filter screen can be damaged due to direct impact when air draft enters the filter screen, and the impact-resistant air filter comprises a shell, a filtering frame is slidably connected to one side in the shell, a buffering mechanism is connected to the back of the filtering frame, and the buffering mechanism comprises a fixing frame, a connecting frame arranged on one side of the fixing frame, an inserting frame fixed to the outer wall of one side of the connecting frame and inserting rods fixed to the four corners of the outer wall of the other side of the connecting frame. When the filter frame is impacted by wind power, the impact force received by the filter frame is buffered through the elastic contraction of the first telescopic spring, so that the filter frame and the connecting frame are close to the baffle, and the baffle supports the filter screen in the filter frame along with the abutting of the baffle and the filter screen in the filter frame; therefore, the filter screen is prevented from being torn due to stress deformation.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to an impact-resistant air filter. Background Technology

[0002] Air is essential for the survival of plants and animals on Earth. Animals cannot breathe and plants cannot photosynthesize without air. In response to the high requirements and standards for air quality in current production and daily life, air filters have been developed.

[0003] In practical applications, in order to improve the air filtration effect, the intake air is often drawn in at a very fast speed. For traditional rigidly connected filters, there is a certain pressure difference inside the filter when the air is first drawn in, and direct impact will cause damage to the filter. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an impact-resistant air filter, which overcomes the shortcomings of the prior art and effectively solves the problem that the traditional rigid connection filter screen in the prior art will be damaged by direct impact when the air is first drawn in due to the pressure difference inside the filter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An impact-resistant air filter includes a housing, a filter frame slidably connected to one side of the housing, and a buffer mechanism connected to the back of the filter frame. The buffer mechanism includes a fixed frame, a connecting frame disposed on one side of the fixed frame, an insert frame fixed to the outer wall of one side of the connecting frame, insert rods fixed to the four corners of the outer wall of the other side of the connecting frame, and a first telescopic spring sleeved on the outer wall of the insert rods. A baffle is disposed between the fixed frame and the connecting frame, and T-shaped blocks are fixed to both ends of the back of the baffle. A lever is inserted into the T-shaped block, and a second telescopic spring is sleeved at the tail end of the lever.

[0007] When the filter frame is impacted by wind, the elastic contraction of the first telescopic spring buffers the impact force, causing the filter frame and connecting frame to move closer to the baffle. As the baffle comes into contact with the filter screen inside the filter frame, the baffle supports the filter screen inside the filter frame, thereby preventing the filter screen from being torn due to deformation under force.

[0008] Preferably, the back of the filter frame is provided with a groove, and the groove and the insert frame are interlocked.

[0009] Align the insert frame with the slot and insert it so that the filter frame and the connecting frame are joined together.

[0010] Preferably, each of the four corners of the outer wall of one side of the fixed frame is provided with a through hole, and the through hole and the insertion rod are in sliding fit.

[0011] The insertion rod slides along the through hole.

[0012] Preferably, the inner and outer wall specifications of the filter frame, the fixing frame, and the connecting frame are all compatible.

[0013] The filter frames, fixing frames, and connecting frames of the same specifications all abut against the inner walls of the outer casing.

[0014] Preferably, the outer wall specifications of the baffle are adapted to the inner wall specifications of the fixed frame, and the outer wall of one side of the baffle is provided with equally spaced ventilation openings.

[0015] The filter frame, fixed frame, and connecting frame all slide with the baffle. When the filter frame and connecting frame move toward the baffle, the baffle can abut against the filter screen inside the filter frame, providing support for the filter screen.

[0016] Preferably, the inner walls on both sides of the outer shell and the fixing frame are provided with insertion holes, and the insertion block and the lever form an insertion engagement.

[0017] Insert the lever into the socket between the outer casing and the fixed frame to connect and fix both the baffle and the fixed frame to the outer casing.

[0018] The beneficial effects of this utility model are as follows:

[0019] When the filter frame is impacted by wind, the elastic contraction of the first telescopic spring buffers the impact force, causing the filter frame and connecting frame to move closer to the baffle. As the baffle comes into contact with the filter screen inside the filter frame, the baffle supports the filter screen, thus preventing the filter screen from tearing due to deformation under force. This effectively solves the problem in existing technologies where traditional rigidly connected filter screens are damaged by direct impact when air enters due to a certain pressure difference inside the filter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an impact-resistant air filter proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the buffer mechanism structure of an impact-resistant air filter proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the back structure of the baffle of an impact-resistant air filter proposed in this utility model.

[0023] In the diagram: 1. Outer shell; 2. Filter frame; 3. Buffer mechanism; 4. Fixing frame; 5. Connecting frame; 6. Insert frame; 7. Insert rod; 8. First telescopic spring; 9. Baffle; 10. T-block; 11. Toggle lever; 12. Second telescopic spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example:

[0026] Reference Figure 1-3 An impact-resistant air filter includes a housing 1, a filter frame 2 slidably connected to one side inside the housing 1, a buffer mechanism 3 connected to the back of the filter frame 2, the buffer mechanism 3 including a fixed frame 4, a connecting frame 5 disposed on one side of the fixed frame 4, an insert frame 6 fixed to the outer wall of one side of the connecting frame 5, insert rods 7 fixed to the four corners of the outer wall of the other side of the connecting frame 5, and a first telescopic spring 8 sleeved on the outer wall of the insert rods 7. A baffle 9 is provided between the fixed frame 4 and the connecting frame 5, and T-shaped blocks 10 are fixed to both ends of the back of the baffle 9. A lever 11 is inserted into the T-shaped block 10, and a second telescopic spring 12 is sleeved at the tail end of the lever 11.

[0027] The back of the filter frame 2 is provided with a groove, which is inserted into the insert frame 6. The insert frame 6 is aligned with the groove and inserted, so that the filter frame 2 and the connecting frame 5 are spliced ​​together. The four corners of the outer wall of the fixed frame 4 are provided with through holes, which are slidably engaged with the insert rod 7. The insert rod 7 is inserted and slid along the through holes. The inner and outer wall specifications of the filter frame 2, the fixed frame 4 and the connecting frame 5 are all compatible. The filter frame 2, the fixed frame 4 and the connecting frame 5 of the same specifications all abut against the inner wall of the outer shell 1.

[0028] The outer wall specifications of the baffle 9 are adapted to the inner wall specifications of the fixed frame 4. Ventilation openings are provided at equal intervals on one side of the outer wall of the baffle 9. The filter frame 2, the fixed frame 4 and the connecting frame 5 are all in sliding fit with the baffle 9. When the filter frame 2 and the connecting frame 5 move toward the baffle 9, the baffle 9 can abut against the filter screen in the filter frame 2 and provide support for the filter screen. The inner walls of the outer shell 1 and the fixed frame 4 are provided with insertion holes. The insertion block and the lever 11 are in insertion fit. By inserting the lever 11 into the insertion holes of the outer shell 1 and the fixed frame 4, the baffle 9 and the fixed frame 4 are connected and fixed to the outer shell 1.

[0029] Working principle:

[0030] When the filter frame 2 is impacted by wind, the first telescopic spring 8 elastically contracts to buffer the impact force received by the filter frame 2, causing the filter frame 2 and the connecting frame 5 to move closer to the baffle 9. As the baffle 9 comes into contact with the filter screen inside the filter frame 2, the baffle 9 supports the filter screen inside the filter frame 2, thereby preventing the filter screen from being torn due to deformation under force.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An impact-resistant air filter, comprising a housing (1), characterized in that, A filter frame (2) is slidably connected to one side of the outer shell (1), and a buffer mechanism (3) is connected to the back of the filter frame (2). The buffer mechanism (3) includes a fixed frame (4), a connecting frame (5) set on one side of the fixed frame (4), an insert frame (6) fixed to the outer wall of one side of the connecting frame (5), insert rods (7) fixed to the four corners of the outer wall of the other side of the connecting frame (5), and a first telescopic spring (8) sleeved on the outer wall of the insert rod (7). A baffle (9) is set between the fixed frame (4) and the connecting frame (5), and T-shaped blocks (10) are fixed at both ends of the back of the baffle (9). A lever (11) is inserted into the T-shaped block (10), and a second telescopic spring (12) is sleeved at the tail end of the lever (11).

2. The impact-resistant air filter according to claim 1, characterized in that, The filter frame (2) has a groove on its back, and the groove and the insert frame (6) are connected in a plug-in fit.

3. The impact-resistant air filter according to claim 1, characterized in that, The four corners of the outer wall of one side of the fixed frame (4) are provided with through holes, and the through holes and the insertion rod (7) are in sliding fit.

4. The impact-resistant air filter according to claim 1, characterized in that, The inner and outer wall specifications of the filter frame (2), the fixing frame (4) and the connecting frame (5) are all compatible.

5. The impact-resistant air filter according to claim 1, characterized in that, The outer wall specifications of the baffle (9) are compatible with the inner wall specifications of the fixed frame (4), and the outer wall of one side of the baffle (9) is provided with equidistant ventilation openings.

6. The impact-resistant air filter according to claim 1, characterized in that, The inner walls of both sides of the outer shell (1) and the fixing frame (4) are provided with insertion holes, and the insertion block and the lever (11) form an insertion engagement.

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