Inlet air filtering device for central air conditioner

Abstract

The utility model relates to an air inlet filter device for a central air conditioner, which comprises an air inlet pipeline, a vibration mechanism is arranged in the air inlet pipeline, a filter mechanism is arranged in the vibration mechanism, the vibration mechanism comprises a mounting frame, the outer surface of the mounting frame is fixedly connected with the inner surface of the air inlet pipeline, and the filter mechanism is arranged in the mounting frame. The device comprises a mounting frame, mounting frames are fixedly mounted on the inner top wall and the inner bottom wall of the mounting frame, two rotating rods are rotatably mounted between the opposite sides of the mounting frames, six reciprocating rods are rotatably mounted in the mounting frames, and fourteen first connecting rods are rotatably mounted on the outer surfaces of the two rotating rods and the outer surfaces of the six reciprocating rods. According to the air inlet filtering device for the central air conditioner, by arranging the vibration mechanism, the purpose of driving the non-woven fabric filter bag to vibrate is achieved, impurities on the non-woven fabric filter bag fall down, the non-woven fabric filter bag is prevented from being blocked, and the air volume of the medium-efficiency filter is recovered.

Description

Technical Field

[0001] The utility model relates to the technical field of air intake filtering, in particular to an air intake filtering device for a central air conditioner. Background Art

[0002] The fresh air central air conditioning system is a power system that provides clean, constant temperature and constant humidity air for the experimental animal barrier environment and maintains a positive pressure inside the barrier environment. In terms of air filtration, from the outside to the inside, there are primary filters, medium efficiency filters and high efficiency filters. Primary filters are suitable for primary filtration of air conditioning systems, mainly used to filter dust particles larger than 5μm. Medium efficiency filters are widely used for intermediate filtration of air conditioning systems, mainly used to filter dust particles larger than 1-5μm. They have the advantages of low resistance and large air volume. Medium efficiency filters are bag type, frame type and combined type.

[0003] According to the patent with announcement number CN216384496U, a filtering structure for central air conditioning is proposed. The filtering structure for central air conditioning can monitor the gas flow rate in real time by setting a gas flow meter in the air outlet direction of the primary filter. Once the gas flow rate becomes smaller, it means that the primary filter is blocked, and the user can be reminded in time to replace and clean the primary filter. Mosquitoes can be lured by setting a UVA lamp in the air inlet direction of the primary filter. Mosquitoes can be killed by setting a high-voltage electric shock net, thereby reducing the possibility of mosquitoes blocking the primary filter and increasing the service life of the primary filter. The wind can be made cleaner by setting a medium-efficiency filter, making it safer for users to use.

[0004] However, the filtering structure used for the central air conditioner cannot automatically clean the medium efficiency filter, which will increase the resistance of the medium efficiency filter, affect the air volume of the medium efficiency filter, and be inconvenient for users. Therefore, an air intake filter device for a central air conditioner is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an air intake filter device for a central air conditioner, which has the advantage of automatically cleaning the medium efficiency filter, and solves the problem that the filtering structure used for the central air conditioner cannot automatically clean the medium efficiency filter, which increases the resistance of the medium efficiency filter, affects the air volume of the medium efficiency filter, and is inconvenient for users to use.

[0006] To achieve the above object, the utility model provides the following technical solution: an air inlet filter device for a central air conditioner, comprising an air inlet duct, a vibration mechanism is arranged inside the air inlet duct, and a filtering mechanism is arranged inside the vibration mechanism;

[0007] The vibration mechanism includes a mounting frame, the outer surface of the mounting frame is fixedly connected to the inner surface of the air inlet duct, the inner top wall and the inner bottom wall of the mounting frame are fixedly mounted with mounting frames, two rotating rods are rotatably mounted between opposite sides of the mounting frame, six reciprocating rods are rotatably mounted inside the mounting frame, fourteen first connecting rods are rotatably mounted on the outer surfaces of two of the rotating rods and the outer surfaces of the six reciprocating rods, fourteen second connecting rods are rotatably mounted on the outer surfaces of the two rotating rods and the outer surfaces of the six reciprocating rods, and movable rods are rotatably mounted inside the fourteen first connecting rods and the inner surfaces of the fourteen second connecting rods respectively.

[0008] Furthermore, the filtering mechanism includes a non-woven filter bag, the front side of the non-woven filter bag is fixedly connected to the back side of the mounting frame, a dust box is fixedly installed on the top of the mounting frame, and a primary filter is fixedly installed between the left and right side walls of the inner cavity of the air inlet duct.

[0009] Furthermore, motors are fixedly mounted on the inner top wall and the inner bottom wall of the installation frame, and the output shafts of the two motors are fixedly connected to reciprocating screw rods via couplings.

[0010] Furthermore, the outer surfaces of the two reciprocating screw rods are slidably connected to the two ends of the six reciprocating rods respectively.

[0011] Furthermore, limiting grooves are provided on opposite sides of the two mounting frames, and inner surfaces of the two limiting grooves are respectively slidably connected to outer surfaces of the reciprocating rods.

[0012] Furthermore, the rotating rod, the reciprocating rod, the first connecting rod, the second connecting rod and the movable rod are connected to form a set of filter bag skeletons.

[0013] Furthermore, the inner surface of the non-woven filter bag is in contact with the outer surface of the filter bag frame.

[0014] Furthermore, the bottom of the non-woven filter bag is in contact with the inner wall of the dust box.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The air intake filter device for the central air conditioner achieves the purpose of driving the non-woven filter bag to vibrate by providing a vibration mechanism, so that debris on the non-woven filter bag falls off, preventing the non-woven filter bag from being blocked, and restoring the air volume of the medium-efficiency filter. By providing a filtering mechanism, the air in the air intake duct of the central air conditioner is filtered to ensure the cleanliness of the air supplied, thereby meeting the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The utility model structure Figure 1 A top view of a cross section;

[0019] Figure 3 The utility model structure Figure 1 Stereoscopic diagram.

[0020] In the figure: 1. air inlet duct; 2. vibration mechanism; 201. mounting frame; 202. mounting frame; 203. rotating rod; 204. reciprocating rod; 205. motor; 206. reciprocating screw rod; 207. first connecting rod; 208. movable rod; 209. second connecting rod; 3. filtering mechanism; 301. non-woven filter bag; 302. dust collection box; 303. primary filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1 and Figure 2 In this embodiment, an air intake filter device for a central air conditioner includes an air intake duct 1, a vibration mechanism 2 is arranged inside the air intake duct 1, a filtering mechanism 3 is arranged inside the vibration mechanism 2, the vibration mechanism 2 includes a mounting frame 201, the outer surface of the mounting frame 201 is fixedly connected to the inner surface of the air intake duct 1, and the inner top wall and the inner bottom wall of the mounting frame 201 are fixedly installed with mounting frames 202, and the central air conditioner takes in air through the air intake duct 1.

[0023] Among them, two rotating rods 203 are rotatably installed between the opposite sides of the mounting frame 202, and six reciprocating rods 204 are rotatably installed inside the mounting frame 202. Limiting grooves are provided on the opposite sides of the two mounting frames 202, and the inner surfaces of the two limiting grooves are respectively slidably connected to the outer surfaces of the reciprocating rods 204, and the reciprocating rods 204 reciprocate left and right through the mounting frame 202.

[0024] Among them, fourteen first connecting rods 207 are rotatably installed on the outer surfaces of the two rotating rods 203 and the outer surfaces of the six reciprocating rods 204, fourteen second connecting rods 209 are rotatably installed on the outer surfaces of the two rotating rods 203 and the outer surfaces of the six reciprocating rods 204, and movable rods 208 are rotatably installed inside the fourteen first connecting rods 207 and the fourteen second connecting rods 209 respectively. The six reciprocating rods 204 drive the movable rods 208 to move accordingly through the first connecting rods 207 and the second connecting rods 209.

[0025] Among them, the inner top wall and the inner bottom wall of the installation frame 201 are fixedly installed with motors 205, and the output shafts of the two motors 205 are fixedly connected to the reciprocating screws 206 through couplings. The two motors 205 drive the two reciprocating screws 206 to rotate, and the outer surfaces of the two reciprocating screws 206 are respectively slidably connected to the two ends of the six reciprocating rods 204. The two reciprocating screws 206 drive the six reciprocating rods 204 to reciprocate left and right through the installation frame 202.

[0026] The rotating rod 203, the reciprocating rod 204, the first connecting rod 207, the second connecting rod 209 and the movable rod 208 are connected to form a filter bag frame.

[0027] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0028] Specifically, two motors 205 are started to drive two reciprocating screws 206 to rotate, and the two reciprocating screws 206 drive six reciprocating rods 204 to reciprocate left and right through the mounting frame 202. The six reciprocating rods 204 drive the movable rod 208 to move accordingly through the first connecting rod 207 and the second connecting rod 209, thereby achieving the purpose of driving the non-woven filter bag 301 to vibrate, so that the debris on the non-woven filter bag 301 falls off, preventing the non-woven filter bag 301 from being blocked, and restoring the air volume of the medium efficiency filter.

[0029] Example 2: Please refer to Figure 1 and Figure 3 On the basis of the first embodiment, the filtering mechanism 3 includes a non-woven filter bag 301, and the incoming air is filtered twice through the non-woven filter bag 301. The front of the non-woven filter bag 301 is fixedly connected to the back of the mounting frame 201, and a dust box 302 is fixedly installed on the top of the mounting frame 201. The dust on the non-woven filter bag 301 falls into the dust box 302. A primary filter 303 is fixedly installed between the left and right side walls of the inner cavity of the air inlet duct 1, and the incoming air is filtered once through the primary filter 303.

[0030] The inner surface of the non-woven filter bag 301 fits with the outer surface of the filter bag frame, and the bottom of the non-woven filter bag 301 fits with the inner wall of the dust box 302, so that the dust box 302 can prevent dust from being raised again.

[0031] Specifically, the central air conditioner takes in air through the air inlet duct 1, the air is filtered once through the primary filter 303, and then filtered twice by the non-woven filter bag 301, and then enters the central air conditioner for use. The non-woven filter bag 301 vibrates, so that the dust on the non-woven filter bag 301 falls into the dust box 302 to ensure the cleanliness of the air supplied, thereby meeting the user's usage requirements.

[0032] The working principle of the above embodiment is:

[0033] (1) The central air conditioner takes in air through the air inlet duct 1. The air is filtered once by the primary filter 303 and then filtered twice by the non-woven filter bag 301 before entering the central air conditioner for use.

[0034] (2) When the non-woven filter bag 301 is clogged, the two motors 205 are started to drive the two reciprocating screws 206 to rotate. The two reciprocating screws 206 drive the six reciprocating rods 204 to reciprocate left and right through the mounting frame 202. The six reciprocating rods 204 drive the movable rod 208 to move accordingly through the first connecting rod 207 and the second connecting rod 209. The movement of the filter bag skeleton drives the non-woven filter bag 301 to vibrate, so that the dust on the non-woven filter bag 301 falls into the dust box 302.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air inlet filter device for a central air conditioner, comprising an air inlet duct (1), characterized in that: A vibration mechanism (2) is disposed inside the air inlet duct (1), and a filtering mechanism (3) is disposed inside the vibration mechanism (2); The vibration mechanism (2) comprises a mounting frame (201), the outer surface of the mounting frame (201) is fixedly connected to the inner surface of the air inlet duct (1), the inner top wall and the inner bottom wall of the mounting frame (201) are fixedly mounted with a mounting frame (202), two rotating rods (203) are rotatably mounted between opposite sides of the mounting frame (202), six reciprocating rods (204) are rotatably mounted inside the mounting frame (202), fourteen first connecting rods (207) are rotatably mounted on the outer surfaces of the two rotating rods (203) and the outer surfaces of the six reciprocating rods (204), fourteen second connecting rods (209) are rotatably mounted on the outer surfaces of the two rotating rods (203) and the outer surfaces of the six reciprocating rods (204), and movable rods (208) are rotatably mounted inside the fourteen first connecting rods (207) and the fourteen second connecting rods (209), respectively.

2. The air inlet filter device for a central air conditioner according to claim 1, characterized in that: The filtering mechanism (3) comprises a non-woven filter bag (301), the front side of the non-woven filter bag (301) is fixedly connected to the back side of the mounting frame (201), a dust box (302) is fixedly mounted on the top of the mounting frame (201), and a primary filter (303) is fixedly mounted between the left and right side walls of the inner cavity of the air inlet duct (1).

3. The air inlet filter device for a central air conditioner according to claim 1, characterized in that: Motors (205) are fixedly mounted on the inner top wall and the inner bottom wall of the installation frame (201), and the output shafts of the two motors (205) are fixedly connected to reciprocating screw rods (206) via couplings.

4. The air inlet filter device for a central air conditioner according to claim 3, characterized in that: The outer surfaces of the two reciprocating screw rods (206) are respectively slidably connected to the two ends of the six reciprocating rods (204).

5. The air inlet filter device for a central air conditioner according to claim 1, characterized in that: Limiting grooves are provided on opposite sides of the two mounting frames (202), and the inner surfaces of the two limiting grooves are respectively slidably connected to the outer surface of the reciprocating rod (204).

6. The air inlet filter device for a central air conditioner according to claim 1, characterized in that: The rotating rod (203), the reciprocating rod (204), the first connecting rod (207), the second connecting rod (209) and the movable rod (208) are connected to form a set of filter bag skeletons.

7. The air inlet filter device for a central air conditioner according to claim 2, characterized in that: The inner surface of the non-woven filter bag (301) is in contact with the outer surface of the filter bag frame.

8. The air inlet filter device for a central air conditioner according to claim 2, characterized in that: The bottom of the non-woven fabric filter bag (301) is in contact with the inner wall of the dust collecting box (302).

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