Protective cover for air outlet of central air conditioner

Abstract

The utility model relates to the technical field of central air conditioner air outlet protective covers, in particular to a central air conditioner air outlet protective cover which comprises an air outlet, an installation frame located in the air outlet and a protective plate located in the installation frame. Limiting blocks corresponding to the two limiting grooves are fixedly connected to the left side and the right side of the protection plate, an extrusion frame is fixedly connected to the upper end of the protection plate, a fixing frame is fixedly connected to the inner wall of the air outlet, and a sealing gasket extruded with the extrusion frame is fixedly connected to the lower end of the fixing frame; the screws are tightened upwards until the extrusion frame extrudes the sealing gasket tightly, the fixing frame and the extrusion frame can be sealed while the protection plate is fixed, installation is completed, the screws are loosened, then the two screws are separated from the interiors of the two limiting frames correspondingly, and then the protection plate and the installation frame can be taken out correspondingly. And the characteristic that the protection plate and the mounting frame are convenient to disassemble, assemble, clean and replace is further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning air outlet protective covers, in particular to a central air-conditioning air outlet protective cover. Background Art

[0002] The central air conditioning system consists of one or more cold and heat source systems and multiple air conditioning systems. This system is different from traditional refrigerant air conditioners (such as single units, VRV) that centrally process air to achieve comfort requirements. The principle of liquid vaporization refrigeration is used to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment; the heating system provides the required heat for the air conditioning system to offset the cooling and heating loads of the indoor environment. The bottom side of the ceiling-mounted central air conditioner usually needs to be installed with an outlet protective cover to prevent external impurities from entering the room through the outlet.

[0003] The existing central air-conditioning air outlet protective cover generally includes a mounting frame fixedly connected to the air outlet by screws, and a protective net fixedly connected to the inside of the mounting frame by screws.

[0004] The disadvantage of the existing central air-conditioning outlet protective cover is that since the air outlet and the mounting frame, as well as the mounting frame and the protective net are fixed by screws, a screwdriver is required to disassemble and assemble the mounting frame and the protective net respectively, which further makes it inconvenient to disassemble, clean and replace the protective net. Therefore, it is necessary to propose a central air-conditioning outlet protective cover to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a central air-conditioning outlet protective cover, which has the characteristics of being easy to disassemble, clean and replace the installation frame and the protective plate respectively.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a protective cover for an air outlet of a central air-conditioning unit, comprising an air outlet, an installation frame located inside the air outlet, and a protective plate located inside the installation frame, wherein limit slots are provided on the left and right sides of the inner wall of the installation frame, and limit blocks corresponding to the two limit slots are fixedly connected to the left and right sides of the protective plate, an extrusion frame is fixedly connected to the upper end of the protective plate, a fixing frame is fixedly connected to the inner wall of the air outlet, a sealing gasket which is extruded with the extrusion frame is fixedly connected to the lower end of the fixing frame, through slots are provided on the left and right sides of the lower end of the air outlet, connecting frames which pass through the two through slots are fixedly connected to the left and right sides of the installation frame, rotating rods are rotatably connected to the interiors of the two connecting frames through two bearings, screws are fixedly connected to the outer walls of the two rotating rods, and tightening structures are provided on the left and right sides of the outer wall of the air outlet.

[0007] In order to facilitate tightening or loosening the two screws, the central air-conditioning outlet protective cover of the utility model is preferably configured such that the tightening structure includes limit frames fixedly connected to the left and right sides of the air outlet and located above the two through slots, the two screws respectively pass through the interior of the two limit frames, and the outer walls of the two screws are threadedly connected with tightening blocks that are squeezed against the upper ends of the two limit frames.

[0008] In order to facilitate the positioning of the installation position of the installation frame, as a preferred central air-conditioning outlet protective cover of the utility model, positioning grooves are opened on the front and rear sides of the inner wall of the outlet, and the interiors of the two positioning grooves are slidably connected with positioning sliders, and the two positioning sliders are fixedly connected to the outer wall of the installation frame.

[0009] In order to facilitate gas circulation and isolate impurities to the upper side of the protective plate, as a preferred central air-conditioning outlet protective cover of the utility model, a plurality of ventilation holes located on the inner side of the extrusion frame are opened through the upper end of the protective plate.

[0010] In order to prevent the two tightening blocks from being lost, as a preferred embodiment of the central air-conditioning outlet protective cover of the utility model, the upper ends of the two screws are fixedly connected to a limiting disk.

[0011] In order to achieve an anti-skid effect when the two tightening blocks are rotated, as a preferred embodiment of the central air-conditioning outlet protective cover of the utility model, the outer walls of the two tightening blocks are provided with anti-skid patterns.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Insert the protective plate into the interior of the installation frame through the limit slot and the limit block, and then insert the installation frame into the interior of the air outlet, and then rotate the two screws into the two limit frames respectively, and then tighten the screws upward until the extrusion frame squeezes the sealing gasket tightly, so that the protective plate can be fixed and the fixing frame and the extrusion frame can be sealed at the same time. After the installation is completed, loosen the screws and make the two screws detach from the interior of the two limit frames respectively, and then the protective plate and the installation frame can be taken out respectively, thereby further achieving the feature of facilitating the disassembly, cleaning and replacement of the protective plate and the installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall front cross-sectional view of the utility model;

[0015] Figure 2 This is the external connection structure diagram of the installation frame of the utility model;

[0016] Figure 3 This is a diagram of the external connection structure of the tightening block of the utility model.

[0017] In the figure: 1. air outlet; 2. ventilation hole; 3. installation frame; 4. protective plate; 5. extrusion frame; 6. fixing frame; 7. sealing gasket; 8. limit plate; 9. through slot; 10. connecting frame; 11. rotating rod; 12. screw rod; 13. limit frame; 14. tightening block; 15. positioning slide groove; 16. positioning slider; 17. limit slot; 18. limit block. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3 The central air-conditioning air outlet protective cover comprises an air outlet 1, an installation frame 3 located inside the air outlet 1, and a protective plate 4 located inside the installation frame 3. Limiting grooves 17 are provided on the left and right sides of the inner wall of the installation frame 3. Limiting blocks 18 corresponding to the two limiting grooves 17 are fixedly connected to the left and right sides of the protective plate 4. An extrusion frame 5 is fixedly connected to the upper end of the protective plate 4. A fixing frame 6 is fixedly connected to the inner wall of the air outlet 1. A sealing gasket 7 which is extruded with the extrusion frame 5 is fixedly connected to the lower end of the fixing frame 6. Through grooves 9 are provided on the left and right sides of the lower end of the air outlet 1. Connecting frames 10 passing through the two through grooves 9 are fixedly connected on the left and right sides of the installation frame 3. Rotating rods 11 are rotatably connected to the interiors of the two connecting frames 10 through two bearings. Screws 12 are fixedly connected to the outer walls of the two rotating rods 11. Tightening structures are provided on the left and right sides of the outer wall of the air outlet 1.

[0019] When the protective plate 4 and the mounting frame 3 are to be installed, the protective plate 4 is first inserted into the interior of the mounting frame 3 through the limiting groove 17 and the limiting block 18, and then the mounting frame 3 is inserted into the interior of the air outlet 1, and at the same time, the two connecting frames 10 enter the interior of the two through grooves 9 respectively, and then the two screws 12 are respectively rotated along the two rotating rods 11 to the interior of the two limiting frames 13, and then the screws 12 are tightened upwards, thereby prompting the extrusion frame 5, the mounting frame 3 and the protective plate 4 to move upwards until the extrusion frame 5 squeezes the sealing gasket 7 tightly, and the protective plate 4 can be fixed due to the reaction force, and the fixing frame 6 and the extrusion frame 5 can be sealed to prevent impurities from entering the room through the gap between the two through grooves 9. The installation is completed, and when the protective plate 4 and the mounting frame 3 need to be disassembled, the screws 12 are loosened, and then the two screws 12 are respectively separated from the interior of the two limiting frames 13, and then the protective plate 4 and the mounting frame 3 can be taken out respectively, further achieving the characteristic of facilitating the disassembly, cleaning and replacement of the protective plate 4 and the mounting frame 3.

[0020] As a technical optimization solution of the utility model, the tightening structure includes a limit frame 13 fixedly connected to the left and right sides of the air outlet 1 and located above the two through slots 9, and two screws 12 pass through the interior of the two limit frames 13 respectively, and the outer walls of the two screws 12 are threadedly connected with tightening blocks 14 that are squeezed with the upper ends of the two limit frames 13.

[0021] In this embodiment, the two screw rods 12 can be tightened or loosened upward by rotating the two tightening blocks 14 and cooperating with the limiting of the two limiting frames 13 .

[0022] As a technical optimization solution of the utility model, positioning grooves 15 are opened on the front and rear sides of the inner wall of the air outlet 1, and positioning sliders 16 are slidably connected inside the two positioning grooves 15. The two positioning sliders 16 are fixedly connected to the outer wall of the installation frame 3.

[0023] In this embodiment, two positioning slide blocks 16 and two positioning slots 15 are provided to facilitate positioning of the installation position of the installation frame 3 .

[0024] As a technical optimization solution of the utility model, a plurality of ventilation holes 2 located inside the extrusion frame 5 are formed through the upper end of the protection plate 4 .

[0025] In this embodiment: ventilation holes 2 are provided to facilitate gas circulation and isolate impurities to the upper side of the protective plate 4.

[0026] As a technical optimization solution of the present invention, the upper ends of the two screw rods 12 are fixedly connected to the limiting disk 8.

[0027] In this embodiment, two limit plates 8 are provided to prevent the two tightening blocks 14 from being lost.

[0028] As a technical optimization solution of the present invention, the outer walls of the two tightening blocks 14 are both provided with anti-slip grooves.

[0029] In this embodiment, anti-skid patterns are provided to prevent skidding when the two tightening blocks 14 are rotated.

[0030] Working principle: When installing the protective plate 4 and the installation frame 3, first insert the protective plate 4 into the installation frame 3 through the limit slot 17 and the limit block 18, then insert the installation frame 3 into the air outlet 1 through the two positioning slide blocks 16 and the two positioning slide slots 15, and at the same time, the two connecting frames 10 enter the two through slots 9 respectively, and then rotate the two screws 12 to the inside of the two limit frames 13 along with the two rotating rods 11, and then rotate the two tightening blocks 14 and cooperate with the limit of the two limit frames 13, so that the two screws 12 can be tightened upwards, thereby causing the extrusion frame 5 and the installation frame 10 to be pressed. 3 and the protective plate 4 move upwards until the extrusion frame 5 squeezes the sealing gasket 7 tightly. Due to the reaction force, the protective plate 4 can be fixed, and the fixing frame 6 and the extrusion frame 5 can be sealed to prevent impurities from entering the room through the gaps between the two through-slots 9. The installation is completed. When the protective plate 4 and the installation frame 3 need to be disassembled, the screw rod 12 is loosened by rotating the two tightening blocks 14, and then the two screw rods 12 are respectively separated from the inside of the two limit frames 13, and then the protective plate 4 and the installation frame 3 can be taken out respectively, thereby further achieving the feature of facilitating the disassembly, cleaning and replacement of the protective plate 4 and the installation frame 3.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective cover for an air outlet of a central air conditioner, comprising an air outlet (1), a mounting frame (3) located inside the air outlet (1), and a protective plate (4) located inside the mounting frame (3), characterized in that: Limiting grooves (17) are provided on both the left and right sides of the inner wall of the installation frame (3); limiting blocks (18) corresponding to the two limiting grooves (17) are fixedly connected to both the left and right sides of the protective plate (4); an extrusion frame (5) is fixedly connected to the upper end of the protective plate (4); a fixing frame (6) is fixedly connected to the inner wall of the air outlet (1); a sealing gasket (7) that is pressed against the extrusion frame (5) is fixedly connected to the lower end of the fixing frame (6); through grooves (9) are provided on both the left and right sides of the lower end of the air outlet (1); connecting frames (10) that pass through the two through grooves (9) are fixedly connected to both the left and right sides of the installation frame (3); rotating rods (11) are rotatably connected to the interiors of the two connecting frames (10) via two bearings; screws (12) are fixedly connected to the outer walls of the two rotating rods (11); and tightening structures are provided on both the left and right sides of the outer wall of the air outlet (1).

2. The central air conditioner air outlet protective cover according to claim 1, characterized in that: The tightening structure comprises a limit frame (13) fixedly connected to the left and right sides of the air outlet (1) and located above the two through slots (9); the two screw rods (12) respectively pass through the interior of the two limit frames (13); and the outer walls of the two screw rods (12) are threadedly connected with a tightening block (14) that is pressed against the upper ends of the two limit frames (13).

3. The central air conditioner air outlet protective cover according to claim 1, characterized in that: Positioning slide grooves (15) are provided on both the front and rear sides of the inner wall of the air outlet (1), and positioning sliders (16) are slidably connected inside the two positioning slide grooves (15), and the two positioning sliders (16) are fixedly connected to the outer wall of the installation frame (3).

4. The central air conditioner air outlet protective cover according to claim 1, characterized in that: The upper end of the protective plate (4) is penetrated by a plurality of ventilation holes (2) located inside the extrusion frame (5).

5. The central air conditioner air outlet protective cover according to claim 2, characterized in that: The upper ends of the two screw rods (12) are fixedly connected to a limiting disk (8).

6. The central air conditioner air outlet protective cover according to claim 2, characterized in that: The outer walls of the two tightening blocks (14) are both provided with anti-slip grooves.

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