Air conditioner filter screen mounting and locking structure

Abstract

The utility model relates to the field of wall-mounted air conditioner indoor unit filter screens, in particular to an air conditioner filter screen installing and locking structure which can achieve convenient and fast disassembly of an air conditioner filter screen and ensure that the filter screen is stably installed in a middle frame, the air conditioner filter screen installing and locking structure comprises the middle frame of an indoor unit and the filter screen, the middle frame comprises a middle frame assembly hole, and the filter screen comprises a filter screen assembly hole. The middle frame assembly hole is matched with the filter screen assembly hole and comprises a locking rotating shaft used for fastening the filter screen to the middle frame, the locking rotating shaft comprises a plug pin end, a knob end and a limiting rib, the plug pin end and the knob end are arranged at the two ends of the locking rotating shaft respectively, and a limiting convex hull is arranged around the filter screen assembly hole; the middle of the locking rotating shaft is arranged in the middle frame assembly hole and the filter screen assembly hole so that the filter screen and the middle frame can be fastened through the plug pin end and the rotary knob end, and the limiting rib is arranged in the limiting convex hull in a clamped mode so as to prevent the locking rotating shaft from rotating. The utility model is particularly suitable for the installation of the air-conditioning filter screen.

Description

Technical Field

[0001] The utility model relates to the field of filter screens for indoor units of wall-mounted air conditioners, in particular to an installation and locking structure for filter screens for air conditioners. Background Art

[0002] At present, there are two ways to install the filter of the indoor unit of a wall-mounted air conditioner. One is to install the filter directly on the middle frame. With this installation method, on the one hand, when cleaning the filter, you need to open the panel first and then pull out the filter. It is inconvenient for users to operate and the panel is easy to be misassembled after cleaning. On the other hand, the filter is close to the evaporator and is more susceptible to moisture and breeding bacteria, increasing the chance of dirty filter blockage and having a greater impact on performance. Another way is to install the filter on the top of the hanging machine. The existing installation method only uses clips. If the clips are too tight, it will be difficult to operate during assembly on the production line and subsequent user cleaning. If the clips are too loose, at least two tapes need to be pasted to fix the filter, which increases the cost of a single machine and increases manual operation, otherwise it is easy to fall out during transportation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an air conditioning filter installation locking structure which can realize convenient disassembly of the air conditioning filter and ensure that the filter is stably installed in the middle frame.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an air-conditioning filter installation locking structure, including a middle frame of an indoor unit and a filter, the middle frame including a middle frame assembly hole, the filter including a filter assembly hole, the middle frame assembly hole and the filter assembly hole are matched and arranged, including a locking shaft for fastening the filter to the middle frame, the locking shaft including a latch end, a knob end and a limiting rib, the latch end and the knob end are respectively arranged at two ends of the locking shaft, a limiting convex package is arranged around the filter assembly hole, the middle part of the locking shaft is arranged in the middle frame assembly hole and the filter assembly hole so that the latch end and the knob end fasten the filter and the middle frame, and the limiting rib is clamped and arranged in the limiting convex package to prevent the locking shaft from rotating.

[0005] Furthermore, the latch end is an elongated latch, the knob end is an elongated knob, and the extension directions of the latch and the knob are parallel to each other; the filter assembly hole and the middle frame assembly hole are both rectangular in shape, and the extension directions of the filter assembly hole and the middle frame assembly hole are parallel to each other.

[0006] Furthermore, the locking shaft includes a latch connecting column, the latch connecting column intersects with the latch vertically, and a limiting rib is arranged on a side wall of the latch connecting column.

[0007] Furthermore, the limiting rib includes two limiting blocks, and a connecting line between the two limiting blocks and an extending direction of the latch are parallel to each other.

[0008] Furthermore, the limiting convex hull includes at least four limiting bosses, and the limiting bosses are symmetrically arranged along the directions of the two long sides of the filter assembly hole;

[0009] When installing the locking shaft, the latch is inserted in a direction parallel to the long side of the filter assembly hole;

[0010] When the locking shaft is locked, the latch is rotated to allow the limit block to be clamped and arranged between the limit bosses.

[0011] Furthermore, the middle frame includes a middle frame limiting hole, and the filter includes a filter limiting clip, and the filter limiting clip is clamped and arranged in the middle frame limiting hole.

[0012] Furthermore, a guide bevel is provided on the edge of the filter limiting clip for guiding the filter limiting clip to be inserted into the limiting hole of the middle frame.

[0013] The beneficial effect of the utility model is that, through the structural innovation of the locking shaft, the utility model can firstly clamp the filter screen and the middle frame through the latch end and the knob end to achieve fastening, and on this basis, the locking shaft is limited to rotate by the clamping structure between the additional limiting rib and the limiting convex bump. Thus, the tightened locking shaft not only ensures the clamping of the filter screen and the middle frame, but also prevents the locking shaft from falling off due to the rotation of the locking shaft during use.

[0014] The utility model is particularly suitable for the installation of air-conditioning filter screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the positional relationship between the middle frame and the filter screen of the utility model.

[0016] Figure 2 It is a schematic diagram of the middle frame limiting holes and the middle frame assembly holes on the middle frame of the utility model.

[0017] Figure 3 It is a schematic diagram of an embodiment of the filter screen of the present utility model.

[0018] Figure 4 yes Figure 3 A-axis enlarged view.

[0019] Figure 5 It is a schematic diagram of an embodiment of the locking shaft of the utility model.

[0020] Figure 6 It is a schematic diagram of the filter screen of the utility model being clamped and arranged on the middle frame.

[0021] Figure 7 It is a schematic diagram of installing the locking shaft of the utility model.

[0022] Figure 8 It is a schematic diagram of the locking shaft of the utility model being clamped into the filter assembly hole.

[0023] Fig. 9 It is a schematic diagram of the utility model when the locking shaft is just inserted into the filter assembly hole and has not yet rotated.

[0024] Fig.10 yes Fig. 9 B-direction enlarged view.

[0025] Fig.11 This is a diagram showing the knob just being inserted into the filter assembly hole.

[0026] Fig.12 This is an enlarged view after the knob is turned 90 degrees.

[0027] Fig.13 This is a schematic diagram after the knob is turned 90 degrees.

[0028] Marked in the figure are: middle frame 1, middle frame limiting hole 11, middle frame assembly hole 12, filter 2, filter limiting clip 21, filter assembly hole 22, guide bevel 23, limiting boss 24, locking shaft 3, latch 31, latch connecting column 311, knob 32, limiting rib 33, indoor unit 4. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 10 As shown, it includes an indoor unit 4, and a filter 2 is arranged at the middle frame 1 of the indoor unit 4. Among them, a plurality of middle frame limiting holes 11 are arranged at the bottom of the middle frame 1 along the bottom edge direction, and the filter limiting clip 21 at the bottom of the filter 2 is smoothly inserted into each corresponding middle frame limiting hole 11 under the guidance of the guide bevel 23, and then the bottom of the filter 2 is first clamped and fixed on the middle frame 1. Subsequently, the upper part of the filter 2 is brought close to the upper part of the middle frame 1, and the filter assembly hole 22 is aligned with the corresponding middle frame assembly hole 12. Finally, the locking shaft 3 is inserted into the filter assembly hole 22 and the middle frame assembly hole 12, and the upper part of the filter 2 is fixed by the locking shaft 3.

[0031] like Figure 5 As shown, the knob 32 of the locking shaft 3 is in the shape of an elongated strip, and the latch 31 of the locking shaft 3 is also in the shape of an elongated strip, and the extension direction of the knob 32 and the latch 31 is consistent. On this basis, the latch 31 and the latch connecting column 311 intersect vertically to form a T-shape. There are two limiting ribs 33, which are respectively arranged on the side walls of the latch connecting column 311, wherein the connecting line between the two limiting blocks 33 is parallel to the extension direction of the latch 31, and the size of the two limiting blocks 33 needs to ensure that they can be clamped between the limiting bosses 24.

[0032] At the same time, the filter assembly hole 22 and the middle frame assembly hole 12 are both rectangular in shape, and the extension directions of the filter assembly hole 22 and the middle frame assembly hole 12 are parallel to each other. When the locking shaft 3 is inserted into the filter assembly hole 22 and the middle frame assembly hole 12, first, hold the knob 32 by hand, and keep the direction of the latch 31 consistent with the direction of the filter assembly hole 22 and the middle frame assembly hole 12, so that the latch 31 can smoothly enter the filter assembly hole 22 and the middle frame assembly hole 12. Then let the latch connection column 311 be set in the filter assembly hole 22 and the middle frame assembly hole 12. Next, turn the knob 32 and adjust the direction of the knob 32 and the filter assembly hole 22 and the middle frame assembly hole 12 from the original parallel to each other, so that the material at the edge of the filter assembly hole 22 and the middle frame assembly hole 12 is tightly clamped between the latch 31 and the knob 32. The structural design of the locking shaft 3 makes installation and disassembly very convenient, and at the same time, the fastening effect is very good.

[0033] In order to prevent the locking shaft 3 from rotating after the above tightening, Figure 5 as well as Figures 10 to 13 As shown, by rotating the knob 32, the limiting rib 33 is engaged between the limiting bosses 24, so that the locking shaft 3 is always restricted by the limiting bosses 24 during the entire use process and does not rotate. Figure 4 As shown, two limiting bosses 24 are arranged near the upper and lower sides of the filter assembly hole 22, respectively, for a total of four limiting bosses 24. The two limiting ribs 33 first enter the filter assembly hole 22 along the direction of the filter assembly hole 22, and then during the rotation process, the two limiting ribs 33 rotate to be perpendicular to the direction of the filter assembly hole 22, and are clamped between the two limiting bosses 24 on the same side, thereby achieving fixation.

Claims

1. An air conditioner filter installation locking structure, comprising a middle frame (1) of an indoor unit (4) and a filter (2), wherein the middle frame (1) comprises a middle frame assembly hole (12), the filter (2) comprises a filter assembly hole (22), the middle frame assembly hole (12) and the filter assembly hole (22) are arranged to match each other, and comprises a locking shaft (3) for fastening the filter (2) to the middle frame (1), characterized in that: The locking shaft (3) comprises a latch end, a knob end and a limiting rib (33), the latch end and the knob end are respectively arranged at two ends of the locking shaft (3), a limiting convex bump is arranged around the filter assembly hole (22), the middle part of the locking shaft (3) is arranged in the middle frame assembly hole (12) and the filter assembly hole (22), so that the latch end and the knob end fasten the filter (2) and the middle frame (1), and the limiting rib (33) is clamped in the limiting convex bump to prevent the locking shaft (3) from rotating.

2. The air conditioning filter installation and locking structure according to claim 1, characterized in that: The latch end is a long strip-shaped latch (31), the knob end is a long strip-shaped knob (32), and the extending directions of the latch (31) and the knob (32) are parallel to each other; the filter assembly hole (22) and the middle frame assembly hole (12) are both rectangular in shape, and the extending directions of the filter assembly hole (22) and the middle frame assembly hole (12) are parallel to each other.

3. The air conditioning filter installation and locking structure according to claim 2, characterized in that: The locking shaft (3) comprises a latch connecting column (311), the latch connecting column (311) intersects the latch (31) vertically, and a limiting rib (33) is arranged on a side wall of the latch connecting column (311).

4. The air conditioning filter installation and locking structure according to claim 3, characterized in that: The limiting rib (33) comprises two limiting blocks, and a line connecting the two limiting blocks and an extending direction of the latch (31) are parallel to each other.

5. The air conditioning filter installation and locking structure according to claim 4, characterized in that: The limiting convex bump comprises at least four limiting bosses (24), and the limiting bosses (24) are symmetrically arranged along the directions of the two long sides of the filter assembly hole (22); When the locking shaft (3) is installed, the latch (31) is inserted in a direction parallel to the long side of the filter assembly hole (22); When the locking shaft (3) is locked, the latch (31) is rotated to allow the limit block to be clamped and disposed between the limit bosses (24).

6. The air conditioning filter installation and locking structure according to any one of claims 1 to 5, characterized in that: The middle frame (1) comprises a middle frame limiting hole (11), and the filter screen (2) comprises a filter screen limiting clip (21), wherein the filter screen limiting clip (21) is clamped and arranged in the middle frame limiting hole (11).

7. The air conditioning filter installation and locking structure according to claim 6, characterized in that: The filter screen limiting clip (21) is provided with a guiding bevel (23) on its edge for guiding the filter screen limiting clip (21) to be inserted into the middle frame limiting hole (11).

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