Air duct opening and closing mechanism of heating ventilation air conditioner

Abstract

The utility model relates to the technical field of air conditioner air duct opening and closing, and discloses a heating ventilation air conditioner air duct opening and closing mechanism which comprises an air duct, a wind shield is detachably installed in the air duct, a piston cylinder is fixedly installed in the middle of the interior of the wind shield, and an opening and closing mechanism is detachably installed in the piston cylinder. The wind shield is installed in the air duct, the motor is driven to drive the piston rod to rotate in the piston cylinder, meanwhile, the opening and closing mechanism is matched, the connecting frame connected with the outer wall of the piston rod can drive the second wind shield to rotate in the same direction, and the driving gears located on the two sides of the piston rod rotate along with rotation of the piston rod. And the gear ring meshed with the two groups of driving gears can drive the first wind shield on the outer wall of the bearing to rotate reversely, so that the first wind shield and the second wind shield rotate in different directions when being opened and closed, the wind resistance of the wind shields is greatly reduced, and the first wind shield and the second wind shield can close the air duct more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of opening and closing air ducts of air conditioners, in particular to an opening and closing mechanism for an air duct of a heating, ventilation and air conditioning unit. Background Art

[0002] At present, air conditioning, or air conditioner, refers to equipment that uses artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure. Air conditioning generally includes several major parts such as cold source / heat source equipment, cold and hot medium distribution system, terminal device and other auxiliary equipment, mainly including: refrigeration host, water pump, fan and piping system. The terminal device is responsible for utilizing the cold and heat distributed to specifically process the air state so that the air parameters of the target environment meet certain requirements.

[0003] The air conditioning duct refers to: a section of iron pipe will be connected to the air conditioner, and an air outlet will be made where it is needed. This set is called the air conditioning duct, and its function is to guide the air outlet of the air conditioner indoor unit to the pipes in different positions in the room.

[0004] Because the air conditioning duct can introduce the cold air and hot air exhausted by the air conditioner into each room, the installation of the air conditioning duct is complicated. However, when there is no need to introduce cold air and hot air into a room, the cold air and hot air air conditioning duct will be sealed by equipment. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0005] The utility model aims to provide a HVAC air duct opening and closing mechanism, which solves the problems raised in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a HVAC air duct opening and closing mechanism, comprising an air duct, a wind shield detachably installed inside the air duct, a piston cylinder fixedly installed in the middle of the wind shield, and an opening and closing mechanism detachably installed inside the piston cylinder;

[0007] The opening and closing mechanism includes a piston rod rotatably installed inside the piston cylinder, two groups of connecting frames equidistantly installed on the piston rod, driving gears fixedly installed on both upper and lower sides of the outer wall of the piston rod, bearings fixedly installed on both sides of the outer wall of the piston cylinder, and gear rings fixedly installed on the outer walls of the two groups of bearings, and the two groups of gear rings are respectively meshed with the two groups of driving gears.

[0008] As an optional solution of the technical solution of the present application, sealing plates are fixedly installed on both sides of the middle part of the windshield, and two groups of sealing plates are respectively located on both sides of the piston cylinder, corresponding to the sealing gaskets on the first windshield plate and the second windshield plate.

[0009] As an optional solution of the technical solution of the present application, a motor is detachably installed in the middle of one side of the windshield, the motor drive output end is connected to the transmission shaft, and the other end of the transmission shaft is detachably installed on one side of the piston rod, which can drive the piston rod to rotate.

[0010] As an optional solution of the technical solution of the present application, the outer walls of the two groups of bearings are fixedly installed with a first wind shield, and the other side of the two groups of connecting frames are fixedly installed with a second wind shield, so that the air duct can be opened and closed.

[0011] As an optional solution of the technical solution of the present application, the first wind shield plate and the second wind shield plate are both semicircular, and sealing gaskets can be removably installed on one side of the inside of the first wind shield plate and the second wind shield plate. The two groups of sealing gaskets correspond to the two groups of sealing plates respectively, which can increase the airtightness of the wind shield.

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

[0013] 1. The technical solution of the present application is to install the wind shield inside the air duct, and drive the motor to drive the piston rod to rotate inside the piston cylinder. At the same time, in cooperation with the opening and closing mechanism, the connecting frame connected to the outer wall of the piston rod will drive the second wind shield to rotate in the same direction, and the driving gears on both sides of the piston rod will also rotate with the rotation of the piston rod, and the gear ring meshing with the two sets of driving gears will drive the first wind shield on the outer wall of the bearing to rotate in the opposite direction, so that the first wind shield and the second wind shield rotate in different directions when opening and closing, thereby greatly reducing the wind resistance of the wind shield and making it easier for the first wind shield and the second wind shield to close the air duct.

[0014] 2. In the technical solution of the present application, a sealing gasket can be detachably installed on one side of the inner side of the first wind shield and the second wind shield, and the two groups of sealing gaskets correspond to the two groups of sealing plates respectively. When the motor drives the first wind shield and the second wind shield to close the air duct, the sealing gaskets on the first wind shield and the second wind shield fit with the sealing plates to ensure the airtightness of the interior of the wind shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a HVAC air duct opening and closing mechanism of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an opening and closing mechanism of a HVAC air duct opening and closing mechanism of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the sealing gasket structure of a HVAC air duct opening and closing mechanism.

[0019] In the figure: 1. air duct; 11. wind shield; 12. sealing plate; 2. piston cylinder; 21. piston rod; 22. connecting frame; 23. driving gear; 24. bearing; 25. gear ring; 26. motor; 3. first wind shield; 31. second wind shield; 32. sealing gasket. DETAILED DESCRIPTION

[0020] See also Figure 1-3 The utility model provides a technical solution: a HVAC air duct opening and closing mechanism, comprising an air duct 1, a wind shield 11 is detachably installed inside the air duct 1, a piston cylinder 2 is fixedly installed in the middle of the wind shield 11, and an opening and closing mechanism is detachably installed inside the piston cylinder 2;

[0021] The opening and closing mechanism includes a piston rod 21 rotatably mounted inside the piston cylinder 2, two sets of connecting frames 22 equidistantly mounted on the piston rod 21, driving gears 23 fixedly mounted on both upper and lower sides of the outer wall of the piston rod 21, bearings 24 fixedly mounted on both sides of the outer wall of the piston cylinder 2, and gear rings 25 fixedly mounted on the outer walls of the two sets of bearings 24, and the two sets of gear rings 25 are respectively meshed with the two sets of driving gears 23.

[0022] In this technical solution, the wind shield 11 is installed inside the air duct 1, and the motor 26 is driven to drive the piston rod 21 to rotate inside the piston cylinder 2. At the same time, in conjunction with the opening and closing mechanism, the connecting frame 22 connected to the outer wall of the piston rod 21 will drive the second wind shield 31 to rotate in the same direction, and the driving gears 23 located on both sides of the piston rod 21 will also rotate with the rotation of the piston rod 21, and the gear ring 25 meshing with the two sets of driving gears 23 will drive the first wind shield 3 on the outer wall of the bearing 24 to rotate in the opposite direction, so that the first wind shield 3 and the second wind shield 31 rotate in different directions when opening and closing, thereby greatly reducing the wind resistance of the wind shield and making it easier for the first wind shield 3 and the second wind shield 31 to close the air duct 1.

[0023] In some technical solutions, sealing plates 12 are fixedly installed on both sides of the middle of the windshield 11, and two groups of sealing plates 12 are respectively located on both sides of the piston cylinder 2.

[0024] In this technical solution, the first wind shield plate 3 and the second wind shield plate 31 can be connected to ensure the airtightness of the wind shield cover 11.

[0025] In some technical solutions, a motor 26 is detachably mounted in the middle of one side of the windshield 11 , the driving output end of the motor 26 is connected to the transmission shaft, and the other end of the transmission shaft is detachably mounted to one side of the piston rod 21 .

[0026] In this technical solution, the piston rod 21 can be driven to rotate by the driving motor 26, and the first wind deflector 3 and the second wind deflector 31 rotate in opposite directions.

[0027] In some technical solutions, the outer walls of the two groups of bearings 24 are fixedly installed with a first wind shield 3, and the other side of the two groups of connecting frames 22 are fixedly installed with a second wind shield 31. The first wind shield 3 and the second wind shield 31 are both semicircular, and a sealing gasket 32 ​​can be removably installed on one side of the inside of the first wind shield 3 and the second wind shield 31. The two groups of sealing gaskets 32 correspond to the two groups of sealing plates 12 respectively.

[0028] In this technical solution, when the motor 26 drives the first wind shield 3 and the second wind shield 31 to close the air duct, the sealing gaskets 32 on the first wind shield 3 and the second wind shield 31 fit with the sealing plate 12 to ensure the airtightness of the interior of the wind shield 11.

[0029] When a HVAC air duct opening and closing mechanism is used, it should be noted that the utility model is a HVAC air duct opening and closing mechanism, and each component is a universal standard part or a component known to technical personnel in this field, and its structure and principle can be known to technical personnel through technical manuals or through conventional experimental methods.

[0030] When in use, first install the wind shield 11 inside the air duct 1, and drive the motor 26 to drive the piston rod 21 to rotate inside the piston cylinder 2. At the same time, cooperate with the opening and closing mechanism, the connecting frame 22 connected to the outer wall of the piston rod 21 will drive the second wind shield 31 to rotate in the same direction, and the driving gear 23 on both sides of the piston rod 21 will also rotate with the rotation of the piston rod 21, and the gear ring 25 meshing with the two sets of driving gears 23 will drive the first wind shield 3 on the outer wall of the bearing 24 to rotate in the opposite direction, so that the first wind shield 3 and the second wind shield 31 are not in the same position when opening and closing. Rotation in the same direction greatly reduces the wind resistance of the wind shield, making it easier for the first wind shield 3 and the second wind shield 31 to close the air duct 1. At the same time, a sealing gasket 32 ​​can be detachably installed on one side of the inside of the first wind shield 3 and the second wind shield 31, and the two groups of sealing gaskets 32 correspond to the two groups of sealing plates respectively. When the motor 26 drives the first wind shield 3 and the second wind shield 31 to close the air duct, the sealing gaskets 32 on the first wind shield 3 and the second wind shield 31 fit together with the sealing plate 12, thereby ensuring the airtightness of the inside of the wind shield 11.

Claims

1. A HVAC air duct opening and closing mechanism, comprising an air duct (1), characterized in that: A wind shield (11) is detachably mounted inside the air duct (1), a piston cylinder (2) is fixedly mounted in the middle of the wind shield (11), and an opening and closing mechanism is detachably mounted inside the piston cylinder (2); The opening and closing mechanism comprises a piston rod (21) rotatably mounted inside the piston cylinder (2), two groups of connecting frames (22) fixedly mounted on the piston rod (21) and distributed at equal intervals, a driving gear (23) fixedly mounted on both upper and lower sides of the outer wall of the piston rod (21), bearings (24) fixedly mounted on both sides of the outer wall of the piston cylinder (2), and gear rings (25) fixedly mounted on the outer walls of the two groups of bearings (24), and the two groups of gear rings (25) are respectively meshed with the two groups of driving gears (23).

2. A HVAC air duct opening and closing mechanism according to claim 1, characterized in that: Sealing plates (12) are fixedly mounted on both sides of the middle of the windshield (11), and two groups of sealing plates (12) are respectively located on both sides of the piston cylinder (2).

3. The HVAC air duct opening and closing mechanism according to claim 1, characterized in that: A motor (26) is detachably mounted in the middle of one side of the windshield (11); a drive output end of the motor (26) is transmission-connected to a transmission shaft, and the other end of the transmission shaft is detachably mounted to one side of the piston rod (21).

4. The HVAC air duct opening and closing mechanism according to claim 1, characterized in that: The outer walls of the two groups of bearings (24) are both fixedly mounted with a first wind deflector (3), and the other sides of the two groups of connecting frames (22) are fixedly mounted with a second wind deflector (31).

5. A HVAC air duct opening and closing mechanism according to claim 4, characterized in that: The first wind shield (3) and the second wind shield (31) are both semicircular in shape, and sealing pads (32) are detachably installed on one side of the inside of the first wind shield (3) and the second wind shield (31), and the two groups of sealing pads (32) correspond to the two groups of sealing plates (12) respectively.

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