Foldable filter screen of air filter

Abstract

The utility model discloses a foldable filter screen of an air filter, which relates to the field of air filtration, and comprises a connecting frame, the left side and the right side of the connecting frame are respectively provided with a sliding chute, the connecting frame is positioned in the inner cavity of the sliding chute, the opposite side walls of the upper side and the lower side of the connecting frame are respectively provided with a mounting frame, and the front side wall of the connecting frame is respectively provided with a support rod. According to the scheme, through cooperation of the mounting frame, the connecting frame, the supporting rod and other devices, the device can conveniently support and limit a filter screen, the filter screen is prevented from being damaged due to the influence of wind power, and the practicability of the device is improved; through cooperation of a double-thread screw, a clamping frame, a mounting frame and other devices, the filter screen can be conveniently mounted in the inner cavity of the frame through the device, limiting and fixing are facilitated, and the filter screen can be supported to filter dust in the air.

Description

Technical Field

[0001] The utility model belongs to the technical field of air filtration, in particular to a foldable filter screen of an air filter. Background Art

[0002] Most of the existing HVAC gas purification filters use single-layer folded air filters. The filtration efficiency is generally classified as G3~M5 (coarse and medium efficiency) according to the current European standards, and generally no second filtration is arranged. The filter screens in the existing air purification filters are mostly fixedly connected to the inner wall of the frame. The filter screens lack a supporting structure and are easily deformed and damaged by wind, which easily causes unnecessary waste. For this reason, we propose a foldable filter screen for air filters. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a foldable filter screen for an air filter, which effectively solves the problem that the filter screens in the existing air purification filters are mostly fixedly connected to the inner wall of the frame, the filter screens lack a supporting structure, and are easily deformed and damaged by wind, which easily causes unnecessary waste.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable filter screen of an air filter comprises a connecting frame, the left and right sides of the lower connecting frame are provided with slide grooves, the upper connecting frame is located in the inner cavity of the slide groove, the opposite side walls of the upper and lower connecting frames are provided with mounting frames, the front side walls of the connecting frame are provided with support rods, the left and right sides of the outer wall of the support rods are provided with buckles, the front side walls of the buckles are provided with a filter screen, and the filter screen is arranged to be reciprocatingly folded.

[0005] Preferably, the left and right side walls of the inner cavity of the mounting frame are both provided with double-headed screws, the left and right side walls of the mounting frame are both provided with sliding holes, the inner walls of the sliding holes on the left and right sides are both provided with clamping frames, and the two groups of clamping frames are respectively arranged on the left and right sides of the outer wall of the double-headed screw.

[0006] Preferably, the front side walls of the mounting frame are provided with grooves, and the outer walls of the double-headed screws are provided with rotating sleeves, and the rotating sleeves are located in the inner cavity of the grooves.

[0007] Preferably, the left and right side walls of the upper connecting frame are both T-shaped, and the slide groove matches the connecting frame.

[0008] Preferably, positioning sleeves are provided on both left and right sides of the outer wall of the support rod, and the outer wall of the positioning sleeve is provided with a positioning groove, the positioning groove is arranged in a C shape, and the buckle is located in the inner cavity of the positioning groove.

[0009] Preferably, a sealing ring is provided on the outer wall of the filter screen, and slots are provided on the opposite side walls of the two groups of mounting frames, and the filter screen is located in the inner cavity of the slots.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The foldable filter screen of the air filter can be easily supported and limited by the installation frame, the connecting frame and the support rod, so as to avoid the damage of the filter screen caused by the wind, which is conducive to improving the practicality of the device;

[0012] 2. The foldable filter screen of the air filter can be easily installed into the inner cavity of the frame by arranging double-headed screws, a clamping frame and a mounting frame, so as to facilitate the positioning and fixing of the filter screen, thereby facilitating the support of the filter screen to filter dust in the air;

[0013] 3. The air filter has a foldable filter screen. By arranging a sealing ring, a filter screen and a buckle and other devices together, the device can seal the joints of the filter screen to prevent dust from leaking from the joints, which is beneficial to improving the sealing of the device and facilitating filtering through the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the foldable filter structure of the utility model air filter;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the mounting frame of the utility model;

[0018] Figure 3 This is a structural schematic diagram of the positioning sleeve of the utility model;

[0019] In the figure: 100, connecting frame; 101, mounting frame; 102, support rod; 103, buckle; 104, filter screen; 105, double-headed screw; 106, clamping frame; 107, rotating sleeve; 108, positioning sleeve; 109, sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Depend on Figure 1 , Figure 2 and Figure 3 It is given that the air filter of the utility model has a foldable filter screen, and the left and right side walls of the inner cavity of the mounting frame 101 are rotatably connected with double-headed screws 105, which can facilitate the two groups of clamping frames 106 to move toward or away from each other, and the left and right side walls of the mounting frame 101 are provided with sliding holes, which can facilitate the movement of the clamping frames 106 to limit and guide, and avoid the deflection of the clamping frames 106, and the inner walls of the sliding holes on the left and right sides are slidably connected with the clamping frames 106, which can facilitate the limiting and fixing of the mounting frame 101 through the clamping frames 106, and the two groups of clamping frames 106 are respectively screwed on the left and right sides of the outer wall of the double-headed screw 105.

[0022] In this embodiment, the two groups of mounting frames 101 are unfolded and placed on the upper and lower side walls of the inner cavity of the frame respectively. The two groups of clamping frames 106 are pushed to move away from each other by rotating the double-headed screw 105. The clamping frames 106 are pressed against the inner wall of the frame for installation and fixation. The mounting frames 101 support the connecting frame 100, and the connecting frame 100 supports the filter screen 104. This allows the device to easily install the filter screen 104 into the inner cavity of the frame, facilitate position fixing, and help support the filter screen 104 to filter dust in the air.

[0023] Slide grooves are provided on the left and right sides of the upper connecting frame 100, and the lower connecting frame 100 is located in the inner cavity of the slide groove. The opposite side walls of the upper and lower connecting frames 100 are fixedly connected with mounting frames 101, and the mounting frames 101 are used to support the connecting frame 100. The front side walls of the connecting frame 100 are fixedly connected with support rods 102, and the support rods 102 are used to support and limit the buckles 103. Buckles 103 are clamped on the left and right sides of the outer walls of the support rods 102, and the filter net 104 is supported by the buckles 103. The front side wall of the buckle 103 is fixedly connected with the filter net 104, and the filter net 104 is used to filter dust in the air, and the filter net 104 is arranged to be reciprocatingly folded.

[0024] In this embodiment, the device is installed in the inner cavity of the frame, the connecting frame 100 is unfolded by the mounting frame 101, the support rod 102 is supported by the mounting frame 101, the buckle 103 is supported by the support rod 102, and the filter screen 104 is supported by the buckle 103. The buckle 103 is C-shaped and made of plastic material. The buckle 103 is connected to facilitate the installation of the filter screen 104. The support rod 102 is used to facilitate the support of the filter screen 104 to avoid deformation of the filter screen 104. After the filter screen 104 is damaged, the buckle 103 can be removed and replaced, so that the device can easily support and limit the filter screen 104 to avoid damage to the filter screen 104 caused by wind, which is beneficial to improving the practicality of the device.

[0025] It should be noted that the filter 104 adopts a reciprocating folding arrangement, which can expand the contact area with the dust and is beneficial to increasing the filtering efficiency.

[0026] The front side walls of the mounting frame 101 are each provided with a groove, and the outer wall of the double-headed screw 105 is provided with a rotating sleeve 107, and the rotating sleeve 107 is located in the inner cavity of the groove.

[0027] In this embodiment, the double-headed screw 105 is driven to rotate by the rotating sleeve 107. The outer wall of the rotating sleeve 107 is provided with anti-skid grooves to avoid slipping. The double-headed screw 105 is self-locking, which is convenient for limiting the clamping frame 106 and preventing the clamping frame 106 from deviating and loosening.

[0028] The left and right side walls of the upper connecting frame 100 are both T-shaped, and the slide groove matches the connecting frame 100 .

[0029] In this embodiment, the T-shaped setting is convenient for limiting the connection of the connecting frame 100 to prevent the connecting frame 100 from being detached, which is conducive to the expansion of the connecting frame 100 and the support of the filter screen 104.

[0030] Positioning sleeves 108 are provided on both sides of the outer wall of the support rod 102 . The outer wall of the positioning sleeve 108 is provided with a positioning groove, which is arranged in a C shape. The buckle 103 is located in the inner cavity of the positioning groove.

[0031] In this embodiment, the positioning sleeve 108 is provided to facilitate positioning of the buckle 103 and prevent the buckle 103 from deflecting, which is beneficial to supporting the filter 104 so that the filter 104 can be evenly unfolded, which is beneficial to filtering the device in the air.

[0032] A sealing ring 109 is disposed on the outer wall of the filter screen 104 , and slots are provided on the opposite side walls of the two sets of mounting frames 101 , and the filter screen 104 is located in the inner cavity of the slots.

[0033] The sealing ring 109 is provided to seal the joints of the filter screen 104 , thereby preventing dust from leaking from the joints, which is beneficial to improving the sealing performance of the device and facilitating filtering through the filter screen 104 .

Claims

1. A foldable air filter screen, comprising a connecting frame (100), characterized in that: The left and right sides of the lower connecting frame (100) are provided with sliding grooves, the upper connecting frame (100) is located in the inner cavity of the sliding grooves, the opposite side walls of the upper and lower connecting frames (100) are provided with mounting frames (101), the front side walls of the connecting frame (100) are provided with support rods (102), the left and right sides of the outer wall of the support rods (102) are provided with buckles (103), the front side walls of the buckles (103) are provided with filter screens (104), and the filter screens (104) are arranged in a reciprocating folding manner.

2. The foldable filter screen of the air filter according to claim 1, characterized in that: The left and right side walls of the inner cavity of the mounting frame (101) are both provided with double-headed screws (105), the left and right side walls of the mounting frame (101) are both provided with sliding holes, the inner walls of the sliding holes on the left and right sides are both provided with clamping frames (106), and two groups of the clamping frames (106) are respectively arranged on the left and right sides of the outer wall of the double-headed screw (105).

3. The foldable filter screen of the air filter according to claim 2, characterized in that: The front side walls of the mounting frame (101) are each provided with a groove, and the outer walls of the double-headed screw rod (105) are each provided with a rotating sleeve (107), and the rotating sleeve (107) is located in the inner cavity of the groove.

4. The foldable filter screen of the air filter according to claim 3, characterized in that: The left and right side walls of the upper connecting frame (100) are both arranged in a T-shape, and the sliding groove matches the connecting frame (100).

5. The foldable filter screen of the air filter according to claim 4, characterized in that: Positioning sleeves (108) are provided on both left and right sides of the outer wall of the support rod (102), and a positioning groove is provided on the outer wall of the positioning sleeve (108). The positioning groove is arranged in a C shape, and the buckle (103) is located in the inner cavity of the positioning groove.

6. The foldable filter screen of the air filter according to claim 5, characterized in that: The outer wall of the filter screen (104) is provided with a sealing ring (109), and the opposite side walls of the two sets of mounting frames (101) are provided with slots, and the filter screen (104) is located in the inner cavity of the slots.

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