Filter screen replacement structure of central air conditioner

Abstract

The utility model relates to the technical field of central air conditioners, and discloses a central air conditioner filter screen replacement structure which comprises an air outlet frame, grooves are formed in the two sides of the inner wall of the air outlet frame, first reset springs are fixedly connected to the two sides of the grooves, ejection lap joint blocks are fixedly connected to the upper surfaces of the first reset springs, and the ejection lap joint blocks are fixedly connected to the lower surfaces of the first reset springs. According to the utility model, the filter screen body can be easily ejected out from the interior of the air outlet frame by pressing the ejection buckle and utilizing the elastic action of the first reset spring and the second reset spring and the ejection lap joint block, so that the problem that complicated tools or tedious steps are possibly needed when a traditional filter screen is replaced is solved; compared with the prior art, time and labor cost needed for replacing the filter screen are reduced, when a new filter screen is installed, only the new filter screen needs to be placed on the surface of the ejection lap joint block, the ejection lap joint block is pressed to enable the ejection buckle to be clamped into the positioning circular groove, the process is simple and rapid, professional installation skills are not needed, common users can easily complete the process, and the filter screen replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioners, in particular to a filter replacement structure of a central air conditioner. Background Art

[0002] When the central air conditioner is running, air continuously circulates in the system. The filter effectively filters pollutants, which can significantly reduce the concentration of pollutants in the indoor air. For example, in foggy weather, if there is no effective filter, high concentrations of PM2.5 outdoors will quickly enter the room, causing the indoor air quality to deteriorate. After installing a suitable filter, most of the PM2.5 will be intercepted outside the filter, and the indoor air will remain relatively clean.

[0003] In traditional central air-conditioning systems, filter replacement is often a more complicated operation. Usually, the installation method of the filter is relatively fixed, and special tools, such as screwdrivers, may be needed to remove and install the filter. For example, the filter of some central air conditioners is fixed to the frame near the air outlet with multiple screws. When the filter needs to be replaced, the maintenance personnel must first find a suitable screwdriver and then unscrew the screws one by one. This process is tedious and time-consuming. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a filter replacement structure for a central air conditioner.

[0005] The utility model is implemented by the following technical solutions: a filter replacement structure for a central air conditioner, comprising an air outlet frame, grooves are provided on both sides of the inner wall of the air outlet frame, first return springs are fixedly connected to both sides of the groove, an ejection overlap block is fixedly connected to the upper surface of the first return spring, a filter body is provided on the upper surface of the ejection overlap block, a second return spring is provided on the surface of the ejection overlap block, a pop-up buckle is fixedly connected to the surface of the second return spring, and a positioning circular groove is provided on the surface of the air outlet frame.

[0006] Through the above technical solution, by pressing the pop-up buckle and utilizing the action of two return springs, the ejection joint block can automatically eject the filter screen, and disassembly can be completed without using tools or spending a lot of labor, which greatly improves the convenience of filter replacement. The relatively simple structural design has more advantages in material and manufacturing costs compared to some complex filter replacement devices.

[0007] As a further improvement of the above solution, the positioning circular groove is adapted to the pop-up buckle.

[0008] Through the above technical solution, the positioning groove is adapted to the pop-up buckle, ensuring that when installing a new filter, the pop-up buckle can accurately fit into the positioning groove to form a stable snap-on structure, preventing the filter from shifting due to vibration and other reasons during use.

[0009] As a further improvement of the above solution, a plurality of ventilation slots are provided on the lower surface of the air outlet frame.

[0010] Through the above technical solution, the several ventilation slots opened on the lower surface of the air outlet frame are conducive to the circulation of air and ensure the normal ventilation function of the central air conditioner.

[0011] As a further improvement of the above solution, the filter body is located above the ventilation slot.

[0012] Through the above technical solution, the filter body is located above the ventilation slot, so that the air entering from the ventilation slot can be filtered by the filter first, thereby ensuring that the filter can normally perform its function of filtering dust, impurities, etc., which helps to improve the quality of the air blown out by the air conditioner.

[0013] As a further improvement of the above solution, a spring receiving groove is provided inside the ejection overlap block.

[0014] Through the above technical solution, a spring receiving groove is provided inside the ejection overlap block, providing a reasonable receiving space for the second return spring and the pop-up buckle.

[0015] As a further improvement of the above solution, the second return spring is fixedly connected to the inner wall of the spring receiving groove, and the spring receiving groove is adapted to the pop-up buckle.

[0016] Through the above technical solution, the second return spring is fixedly connected to the inner wall of the spring receiving groove, and the spring receiving groove is adapted to the pop-up buckle, ensuring that the second return spring can accurately push the pop-up buckle to pop out or retract into the spring receiving groove, so that the pop-up buckle can stably realize its clamping and separation functions.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model presses the pop-up buckle, utilizes the elastic action of the first return spring and the second return spring, and can easily push the filter body out from the inside of the air outlet frame through the ejection overlap block. This design avoids the problem that traditional filter replacement may require complex tools or tedious steps, reduces the time and labor costs required for filter replacement, and when installing a new filter, it is only necessary to place the new filter on the surface of the ejection overlap block and press the ejection overlap block to make the pop-up buckle snap into the positioning circular groove. The process is simple and fast, does not require professional installation skills, and ordinary users can easily complete it, thereby improving the efficiency of filter replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the ejector overlap block of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the first return spring of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the second return spring of the present invention;

[0023] Description of main symbols:

[0024] 1. Air outlet frame; 2. First return spring; 3. Ejector joint; 4. Filter body; 5. Second return spring; 6. Pop-up buckle; 7. Positioning circular groove; 8. Ventilation groove; 9. Spring storage groove. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-4, a filter replacement structure for a central air conditioner in this embodiment includes an air outlet frame 1, grooves are provided on both sides of the inner wall of the air outlet frame 1, and first return springs 2 are fixedly connected to both sides of the groove, and the upper surface of the first return spring 2 is fixedly connected to a ejection overlap block 3, and the upper surface of the ejection overlap block 3 is provided with a filter body 4, and a second return spring 5 is provided on the surface of the ejection overlap block 3, and a pop-up buckle 6 is fixedly connected to the surface of the second return spring 5. A positioning circular groove 7 is provided on the surface of the air outlet frame 1. When the pop-up buckles 6 on both sides of the air outlet frame 1 are pressed, the pop-up buckle 6 is subjected to pressure, and the second return spring 5 is compressed, so that the pop-up buckle 6 and the second return spring 5 enter the spring receiving groove 9, and the ejection overlap block 3 originally received by the air outlet frame is released. 1 limits the connection and is no longer connected at this time. The first return spring 2 on the lower surface of the ejection overlap block 3 is pressed down during installation to store elastic potential energy. At this time, it is reset and the ejection overlap block 3 is lifted, thereby pushing the filter body 4 out of the air outlet frame 1 to achieve convenient disassembly. When installing a new filter, first place the new filter on the surface of the ejection overlap block 3 and press the ejection overlap block 3. The first return spring 2 is compressed and the ejection overlap block 3 descends. During the descent, the pop-up buckle 6 is retracted into the spring receiving groove 9 by the pressure of the inner wall of the air outlet frame 1. When the ejection overlap block 3 descends to the position of the positioning circular groove 7, the pop-up buckle 6 pops out under the resetting action of the second return spring 5, and is stuck in the positioning circular groove 7, forming a clamping structure with the air outlet frame 1 to complete the installation of the new filter.

[0028] The positioning circular groove 7 is adapted to the pop-up buckle 6, which ensures that when the filter is installed, the pop-up buckle 6 can be accurately snapped into the positioning circular groove 7, so that the ejection joint block 3 and the air outlet frame 1 form a stable snap-fit ​​structure, ensuring that the filter is firmly installed.

[0029] The lower surface of the air outlet frame 1 is provided with several ventilation slots 8. The existence of the ventilation slots 8 is to allow air to pass through the air outlet frame 1 smoothly. When the central air conditioner is running, the air needs to be filtered by the filter body 4 and then flow out through the ventilation slots 8.

[0030] The filter body 4 is located above the ventilation slots 8, ensuring that the air entering the ventilation slots 8 must first be filtered by the filter body 4. This can effectively filter dust and impurities in the air, preventing them from entering the air conditioner or entering the indoor environment through the ventilation slots 8, thereby ensuring the normal operation of the air conditioner and the quality of indoor air.

[0031] A spring receiving groove 9 is provided inside the ejection overlap block 3, which provides a receiving space for the second return spring 5 and the pop-up buckle 6. When the pop-up buckle 6 is compressed under pressure, the spring receiving groove 9 can accommodate them to avoid interference with other components. At the same time, during the installation process, it also provides space for the pop-up buckle 6 to pop out when the second return spring 5 is reset, ensuring that the buckle can be accurately inserted into the positioning circular groove 7.

[0032] The second return spring 5 is fixedly connected to the inner wall of the spring receiving groove 9 , and the spring receiving groove 9 is adapted to the pop-up buckle 6 .

[0033] The implementation principle of the filter replacement structure of a central air-conditioning in the embodiment of the present application is as follows: when the filter needs to be replaced, the personnel first ensures that the central air-conditioning has stopped running to ensure operational safety and prevent equipment damage. Then the personnel find the pop-up buckles 6 on both sides of the air outlet frame 1 and press the pop-up buckles 6 with their fingers. At this time, the pop-up buckles 6 are subjected to pressure. Due to the interaction between them and the inner wall of the air outlet frame 1, the second return spring 5 is compressed, so that the pop-up buckle 6 and the second return spring 5 enter the spring receiving groove 9 as a whole. Since the ejection lap block 3 was originally restricted by the air outlet frame 1, after the pop-up buckle 6 is retracted into the spring receiving groove 9, this restriction is released, and the first return spring 2 on the lower surface of the ejection lap block 3 was pressed down during the previous installation to store elastic potential energy. At this time, the first return spring 2 is reset, pushing the ejection lap block 3 upward, and the ejection lap The filter body 4 is placed on the upper surface of the block 3. As the ejection overlap block 3 is lifted, the filter body 4 is pushed out of the air outlet frame 1, thereby realizing convenient disassembly. Then take a new filter body 4 and place it on the surface of the ejection overlap block 3 to ensure that the filter body 4 is placed accurately and stably. Press the ejection overlap block 3 with your fingers so that the first return spring 2 is compressed and the ejection overlap block 3 begins to descend. During the descending process of the ejection overlap block 3, the pop-up buckle 6 is under the pressure of the inner wall of the air outlet frame 1 and will shrink into the spring receiving groove 9. When the ejection overlap block 3 drops to the position of the positioning circular groove 7, due to the elastic reset effect of the second return spring 5 itself, the pop-up buckle 6 will pop out from the spring receiving groove 9. The pop-up buckle 6 is accurately stuck in the positioning circular groove 7, forming a snap-fit ​​structure with the air outlet frame 1, thereby completing the installation of the new filter.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A filter replacement structure for a central air conditioner, characterized in that: The invention comprises an air outlet frame (1), wherein grooves are provided on both sides of the inner wall of the air outlet frame (1), and first return springs (2) are fixedly connected to both sides of the grooves, and an ejection overlap block (3) is fixedly connected to the upper surface of the first return spring (2), and a filter body (4) is provided on the upper surface of the ejection overlap block (3), and a second return spring (5) is provided on the surface of the ejection overlap block (3), and a pop-up buckle (6) is fixedly connected to the surface of the second return spring (5), and a positioning circular groove (7) is provided on the surface of the air outlet frame (1).

2. The filter replacement structure for a central air conditioner according to claim 1, characterized in that: The positioning circular groove (7) is adapted to the pop-up buckle (6).

3. The filter replacement structure for a central air conditioner according to claim 1, characterized in that: The lower surface of the air outlet frame (1) is provided with a plurality of ventilation slots (8).

4. The filter replacement structure for a central air conditioner according to claim 1, characterized in that: The filter body (4) is located above the ventilation slot (8).

5. The filter replacement structure for a central air conditioner according to claim 1, characterized in that: A spring receiving groove (9) is provided inside the ejection overlap block (3).

6. The filter replacement structure for a central air conditioner according to claim 1, characterized in that: The second return spring (5) is fixedly connected to the inner wall of the spring receiving groove (9), and the spring receiving groove (9) is adapted to the pop-up buckle (6).

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