Filter mounting structure for central air conditioner

Abstract

The filter mounting structure for the central air conditioner comprises a fixing frame arranged at the air inlet end of an air conditioner cabinet, a filter containing frame with an opening in the upper end is installed at the lower end of the inner side of the fixing frame in a hinged mode, and a detachable filter is installed on the filter containing frame from the opening. A rotary knob locking device is installed on the side, close to the outer side, of the fixing frame, an ejector block controlled by a rotary knob to stretch out and draw back is installed in the rotary knob locking device, the ejector block abuts against the outer side of the filter containing frame, when the filter is replaced, the rotary knob is rotated, the ejector block retreats, the filter containing frame is rotated outwards, then the filter is taken down, operation is easy and convenient, and in the replacing process, the filter can be replaced conveniently. And the falling dust is outside the cabinet, so that the cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to a central air-conditioning cabinet, in particular to a filter installation structure used for the central air-conditioning. Background Art

[0002] Central air conditioning units need to introduce fresh air from the external space, commonly known as fresh air. However, the air contains dust. If it is introduced directly, it will cause harm to the normal operation of the unit. Therefore, a filter device needs to be installed at the entrance of the fresh air. Since the dust will gradually accumulate and then block the filter device, this filter device needs to be replaced frequently. Traditional filter devices will choose to extract the filter from the side based on sealing performance considerations. The lateral area of ​​the filter device is generally large, and there is a structure composed of multiple filters. It is more troublesome to extract the internal filter. During extraction, the filter will rub against the installation frame, causing the dust attached to the filter to fall into the cabinet, which is troublesome to clean. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a filter installation structure for a central air conditioner.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A filter installation structure for a central air conditioner comprises a fixed frame arranged at the air inlet end of an air conditioner cabinet, a filter placement frame with an upper end opening is hingedly installed at the inner lower end of the fixed frame, a detachable filter is installed on the filter placement frame from the opening, a knob locker is installed on the side of the fixed frame close to the outer side, a top block that is controlled to be extended and retracted by a knob is installed in the knob locker, and the top block abuts against the outer side of the filter placement frame.

[0006] The knob locker comprises a housing, a rotating shaft reset by a reset spring is installed in the housing, and the knob is fixedly connected to the end of the rotating shaft.

[0007] The rotating shaft is provided with an external gear surface, and the top block is provided with a rack surface corresponding to the external gear surface. The external gear surface is transmission-connected with the rack surface to control the extension and retraction of the top block.

[0008] A ratchet clamp is installed in the housing, a ratchet is arranged on the rotating shaft corresponding to the ratchet clamp, and the ratchet clamp clamps the ratchet by rotating in one direction.

[0009] A slope structure is arranged on one side of the top block close to the filter placement frame.

[0010] A sealing baffle is installed on one side of the fixing frame close to the inner side, and one side of the sealing baffle is sealed against the edge of the filter placement frame.

[0011] A reciprocating positioner controlled by a mounting spring is installed at the bottom of the filter placement frame, and a portion of the filter is ejected from the filter placement frame through the reciprocating positioner.

[0012] The beneficial effects of the utility model are as follows: a filter placement frame with an open upper end is hingedly installed at the lower end of the inner side of the fixed frame, a detachable filter is installed on the filter placement frame from the opening, a knob lock is installed on the side of the fixed frame close to the outer side, a top block that is controlled to be retracted and extended by a knob is installed in the knob lock, the top block abuts against the outer side of the filter placement frame, when replacing the filter, the knob is rotated to withdraw the top block, and after the filter placement frame is rotated outward, the filter is removed, the operation is simple and convenient, and during the replacement process, the fallen dust will be outside the cabinet, which is convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a diagram of the filter placement box in the closed state;

[0015] Figure 2 This is a diagram of the filter placement box being opened;

[0016] Figure 3 It is one of the schematic diagrams of the structure of the knob lock;

[0017] Figure 4 This is the second schematic diagram of the structure of the knob lock. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0020] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0021] Reference Figure 1-4A filter installation structure for a central air conditioner comprises a fixed frame 1 arranged at the air inlet end of the air conditioning cabinet, a filter placement frame 2 with an upper opening is hingedly installed at the inner lower end of the fixed frame 1, a detachable filter 3 is installed at the opening of the filter placement frame 2, a knob locker 4 is installed on the side of the fixed frame 1 close to the outside, a top block 6 controlled by a knob 5 for extension and retraction is installed in the knob lock 4, the top block 6 is abutted against the outer side of the filter placement frame 2, when replacing the filter, the knob is rotated to withdraw the top block, and the filter placement frame is rotated outward to remove the filter, the operation is simple and convenient, and during the replacement process, the fallen dust will be outside the cabinet, which is convenient to clean.

[0022] The knob lock 4 includes a housing 7, a rotating shaft 9 reset by a reset spring 8 is installed in the housing 7, the knob 5 is fixedly connected to the end of the rotating shaft 9, an external gear surface is provided on the rotating shaft 9, a rack surface is provided on the top block 6 corresponding to the external gear surface, the external gear surface is in transmission connection with the rack surface to control the extension and retraction of the top block 6, a ratchet positioner 10 is installed in the housing 7, a ratchet 11 is provided on the rotating shaft 9 corresponding to the ratchet positioner 10, the ratchet positioner 10 clamps the ratchet 11 for unidirectional rotation, and when the ratchet positioner 10 is engaged with the ratchet 11, the ratchet 11 can only rotate in one direction to control the top block 6 to extend. When the filter 3 is replaced, as shown in FIG. Figure 4 As shown, it is necessary to pull the knob 5 to separate the ratchet retainer 10 from the ratchet 11 (after releasing the knob 5, the reset spring 8 controls the shaft 9 to reset, thereby controlling the ratchet retainer 10 to re-engage with the ratchet 11). Only then can it be rotated in the other direction, and the top block 6 is withdrawn, and the filter placement frame 2 can be opened to take out and replace the filter 3. Finally, the filter placement frame 2 can be closed, and the knob 5 can be rotated again to make the top block 6 engage with the filter placement frame 2.

[0023] The top block 6 is provided with an inclined surface structure on one side close to the filter placement frame 2 so as to better fit with the filter placement frame 2 .

[0024] A sealing baffle frame 12 is installed on the inner side of the fixed frame 1, and one side of the sealing baffle frame 12 is sealed against the edge of the filter placement frame 2. The number of the knob lockers 4 is at least 2 to ensure the sealing effect between the filter placement frame 2 and the sealing baffle frame 12.

[0025] The bottom of the filter placement frame 2 is equipped with a reciprocating positioner 13 controlled by a mounting spring, and a portion of the filter 3 pops out from the filter placement frame 2 through the reciprocating positioner 13. The filter 3 is installed in the filter placement frame 2. After pressing once, the filter 3 is completely installed in the filter placement frame 2. After pressing again, a portion of the filter 3 pops out from the filter placement frame 2 (as shown in FIG. Figure 2 As shown in the filter), it is convenient for extraction and this structure belongs to the prior art.

[0026] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filter installation structure for a central air conditioner, comprising a fixing frame (1) arranged at the air inlet end of an air conditioner cabinet, characterized in that A filter placement frame (2) with an open upper end is hingedly mounted on the inner lower end of the fixed frame (1), and a detachable filter (3) is mounted on the filter placement frame (2) from the opening. A knob locker (4) is mounted on the side of the fixed frame (1) close to the outer side, and a top block (6) whose extension and retraction is controlled by a knob (5) is mounted inside the knob locker (4), and the top block (6) abuts against the outer side of the filter placement frame (2).

2. The filter installation structure for central air conditioning according to claim 1, characterized in that The knob locker (4) comprises a housing (7), a rotating shaft (9) reset by a reset spring (8) is installed in the housing (7), and the knob (5) is fixedly connected to the end of the rotating shaft (9).

3. The filter installation structure for central air conditioning according to claim 2, characterized in that The rotating shaft (9) is provided with an external gear surface, and the top block (6) is provided with a rack surface corresponding to the external gear surface, and the external gear surface is transmission-connected with the rack surface to control the extension and retraction of the top block (6).

4. The filter installation structure for central air conditioning according to claim 2, characterized in that A ratchet clamp (10) is installed in the housing (7), a ratchet (11) is provided on the rotating shaft (9) corresponding to the ratchet clamp (10), and the ratchet clamp (10) clamps the ratchet (11) in a single-direction rotation.

5. The filter installation structure for central air conditioning according to claim 1, characterized in that A slope structure is provided on one side of the top block (6) close to the filter placement frame (2).

6. The filter installation structure for central air conditioning according to claim 1, characterized in that A sealing baffle frame (12) is installed on one side of the fixing frame (1) close to the inner side, and one side of the sealing baffle frame (12) is sealingly engaged with the edge of the filter placement frame (2).

7. The filter installation structure for central air conditioning according to claim 1, characterized in that A reciprocating positioner (13) controlled by a mounting spring is installed at the bottom of the filter placement frame (2), and a portion of the filter (3) pops out from the filter placement frame (2) via the reciprocating positioner (13).

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