Air port reversing device of central air conditioner

Abstract

The utility model relates to the technical field of central air conditioners, in particular to a central air conditioner air port reversing device which comprises a connecting end, a fixing end, a housing, a guide pipe and a wind shield, an annular side plate is formed at the bottom of the connecting end, an opening for airflow to pass through is formed in the annular side plate, the fixing end is located below the connecting end, and a first air outlet is formed in the fixing end. The cover shell annularly sleeves the annular side plate, the upper end and the lower end of the cover shell are connected with the annular side plate and the fixed end correspondingly to form a rotatable rotating pair, the guide pipe is installed on the cover shell and communicated with the interior of the cover shell, an annular baffle is formed on the edge of the wind shield and connected with the connecting end through an elastic piece, and a second air outlet is formed in the wind shield. The airflow can be dispersed in a low-flow-rate state to improve the turbulence degree of the airflow, and the airflow is utilized to push the housing to rotate in a high-flow-rate state to enable the airflow to transversely enter the outside and to continuously change the direction, so that the airflow can be prevented from directly blowing people in the downwind of the air port to cause discomfort to the people.

Description

Technical Field

[0001] The utility model relates to the field of central air conditioners, in particular to a central air conditioner air outlet commutation device. Background Art

[0002] Central air conditioning is an air conditioning system for centralized cooling, heating and ventilation, which is used in large space environments such as large buildings, commercial places and industrial facilities. The central air conditioning system can provide uniform cold and warm air for the whole building to ensure the stability of indoor temperature and humidity.

[0003] The air flow of the central air conditioner is transported through pipelines and finally exits from the air outlet. At present, the air outlet mode of the central air conditioner adopts direct blowing. Although components such as grilles and louvers are set at the air outlet, it can only change the air outlet direction and cannot change the air outlet mode. People located below the air outlet will have symptoms such as dizziness, headache and dry skin when directly blown by the air flow (reference can be made to the central air conditioner anti-direct blowing air conditioner fan with the publication number CN211926062U and a central air conditioner commutation device with the publication number CN220883984U. The above patents mentioned this problem in the background art and introduced it in detail). The purpose of the utility model is to propose an air outlet commutation device to solve the above technical problems and improve the user experience of the central air conditioner. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a central air conditioner air outlet commutation device to solve the problems mentioned in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: It includes a connection end, a fixed end, a housing, a guiding pipe and a wind shielding plate. The connection end is used to connect with the air outlet pipeline. An annular side plate is formed at the bottom of the connection end, and an opening for air flow to pass through is formed on the annular side plate. The fixed end is used to be fixedly installed at the air outlet. The fixed end is located below the connection end, and a first air outlet is formed on the fixed end. The housing is sleeved on the annular side plate in a ring shape. The upper and lower ends of the housing are respectively connected with the annular side plate and the fixed end to form a rotatable rotating pair. The housing is communicated with the inside of the connection end through the opening. The guiding pipe is installed on the housing and communicated with the inside of the housing. An annular baffle is formed at the edge of the wind shielding plate, and the annular baffle can block the opening. The annular baffle is connected with the connection end through an elastic member. A second air outlet is formed on the wind shielding plate. The wind shielding plate can cover the first air outlet and the orthographic projection of the second air outlet on the fixed end has no contact with the first air outlet.

[0006] To optimize the above technical solution, the further measures taken are as follows: The guiding tubes are evenly distributed on the housing, and the length direction of the guiding tubes is inclined and does not point to the axis of the annular housing. When the air flow jets out along the inclined guiding tubes, a thrust can be generated to push the housing to rotate, thereby ensuring that the air flow is evenly distributed in all directions.

[0007] As a further improvement of the technical solution: The longitudinal section of the housing is in a [shape, and the upper and lower ends of the housing are respectively installed on the annular side plate and the fixed end through damping bearings, so that the housing, the annular side plate and the fixed end form a rotatable revolute pair. The damping bearings are used to consume the mechanical energy of the housing to avoid abnormal noises caused by too fast rotation speed of the housing.

[0008] As an improvement to the foregoing technical solution: The elastic member is specifically a gas spring. The length direction of the gas spring is parallel to the axis direction of the connection end. The two ends of the gas spring are respectively connected to the annular baffle and the connection end. The gas spring can expand and contract in the length direction to drive the wind deflector to move inside the fixed end. At the same time, the small lateral displacement of the gas spring can avoid the collision between the wind deflector and the fixed end. The gas spring belongs to the prior art content, so the specific structure and working principle of the gas spring will not be further explained. The technical personnel can adjust the elastic coefficient of the gas spring according to actual needs.

[0009] Furthermore: The annular baffle contacts with the inner surface of the fixed end to form a moving pair along the axis direction of the fixed end. The purpose of such a design is to improve the stability of the annular baffle when moving and ensure the cooperation stability between the annular baffle and the fixed end.

[0010] As a further improvement to the above technical solution: The shape of the wind deflector matches the inner bottom of the fixed end, which can prevent the air flow from leaking through the gap between the wind deflector and the inner edge of the fixed end.

[0011] From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0012] A central air-conditioning air outlet commutation device provided by the present invention can stir the air flow to increase the turbulence degree of the air flow in the low flow rate state, and use the air flow to push the housing to rotate in the high flow rate state, so that the air flow enters the outside laterally while the direction is constantly changing, and the air flow enters the outside in a complex and non-directional turbulent form, which can avoid the discomfort caused by the air flow directly blowing on the personnel in the downwind of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0014] Figure 1Schematic three - dimensional structure diagram of the present utility model (first perspective);

[0015] Figure 2 Schematic three - dimensional structure diagram of the present utility model (second perspective);

[0016] Figure 3 Schematic cross - sectional structure diagram of the present utility model;

[0017] Figure 4 is Figure 3 Schematic diagram of partial structure stone (part one);

[0018] Figure 5 is Figure 3 Schematic diagram of partial structure stone (part two);

[0019] In the figure: connection end - 1, annular side plate - 101, opening - 102, fixed end - 2, first air outlet - 201, housing - 3, damping bearing - 301, guiding tube - 4, wind deflector - 5, annular baffle - 501, elastic member - 502, second air outlet - 503 Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] Embodiment

[0022] Please refer to Figures 1-5 , the present utility model provides a central air - conditioning air outlet reversing device, including a connection end 1, a fixed end 2, a housing 3, a guiding tube 4 and a wind deflector 5. The connection end 1 is used to connect with the air outlet duct of the central air - conditioning for accessing air flow. Technicians can use methods such as bolting or bonding to complete the connection between the connection end 1 and the air outlet duct. An annular side plate 101 is formed at the bottom of the connection end 1, and an opening 102 for the air flow to pass through is formed on the annular side plate 101.

[0023] The fixed end 2 is used for fixed installation at the air outlet of the installation surface. The fixed end 2 is located below the connection end 1, and a first air outlet 201 is formed on the fixed end 2. For those skilled in the art, the fixed end 2 can be fixed to the installation surface by bolts or bonded to the installation surface with an adhesive. Technicians can select different methods according to actual needs to complete the installation, which will not have a substantial impact on the technical effect.

[0024] The housing 3 is sleeved on the annular side plate 101 in a ring shape. The upper and lower ends of the housing 3 are respectively connected to the annular side plate 101 and the fixed end 2 to form a rotatable hinge. The housing 3 is internally communicated with the inside of the connecting end 1 through the opening 102. The longitudinal section of the housing 3 is in a [shape], and the upper and lower ends of the housing 3 are respectively installed on the annular side plate 101 and the fixed end 2 through damping bearings 301 to form a rotatable hinge between the housing 3 and the annular side plate 101 and the fixed end 2. The damping bearings 301 are used to consume the mechanical energy of the housing 3 to prevent the housing 3 from generating abnormal noises due to excessive rotation speed.

[0025] The guide pipes 4 are installed on the housing 3 and are internally communicated with the housing 3. The guide pipes 4 are evenly distributed on the housing 3 at equal intervals. The length direction of the guide pipes 4 does not point to the axis of the annular housing 3 and is inclined. When the air flow is ejected along the inclined guide pipes 4, a thrust can be generated to push the housing 3 to rotate, so as to ensure that the air flow is evenly distributed in all directions, improve the distribution range of the air flow, and prevent the air flow from being too concentrated and directly blowing to cause discomfort to the personnel below the air outlet.

[0026] An annular baffle 501 is formed at the edge of the wind shield 5. The annular baffle 501 can block the opening 102. The annular baffle 501 is connected to the connecting end 1 through an elastic member 502. The annular baffle 501 is in contact with the inner surface of the fixed end 2 to form a moving pair along the axis direction of the fixed end 2. The wind shield 5 matches the shape of the inner bottom of the fixed end 2. A second air outlet 503 is formed on the wind shield 5. The wind shield 5 can cover the first air outlet 201, and the orthographic projection of the second air outlet 503 on the fixed end 2 does not contact the first air outlet 201.

[0027] The annular baffle 501 is in contact with the inner surface of the fixed end 2 to form a moving pair along the axis direction of the fixed end 2. The purpose of such a design is to improve the stability of the annular baffle 501 during movement and ensure that the cooperation between the annular baffle 501 and the fixed end 2 can improve the cooperation stability between the annular baffle 501 and the fixed end 2. In addition, the wind shield 5 matches the shape of the inner bottom of the fixed end 2, which can prevent the air flow from leaking from the gap between the wind shield 5 and the inner edge of the fixed end 2.

[0028] The elastic member 502 is specifically a gas spring. The length direction of the gas spring is parallel to the axis direction of the connecting end 1. The two ends of the gas spring are respectively connected to the annular baffle 501 and the connecting end 1. The gas spring can be telescoped in the length direction to drive the wind shield 5 to move inside the fixed end 2. At the same time, the small lateral displacement of the gas spring can prevent the wind shield 5 from colliding with the fixed end 2. The gas spring belongs to the prior art content and is well known to those skilled in the art. Therefore, the specific structure and working principle of the gas spring will not be further explained. Technicians can select different types and specifications of gas springs according to actual needs to adjust the elastic coefficient of the elastic member 502 to suit different working scenarios.

[0029] Working principle: In the state of low air flow velocity, the annular baffle 501 blocks the opening 102 on the annular side plate 101, so that the air flow cannot leave from the guide pipe 4. The air flow will enter the outside after passing through the first air outlet 201 and the second air outlet 503. During this process, since the air flow can be disturbed by the first air outlet 201 and the second air outlet 503 to increase the degree of turbulence, the air flow enters the outside in an undirected turbulent form, which can avoid the discomfort caused by the direct blowing of the air flow to the personnel below the air outlet.

[0030] In the state of high air flow velocity, the air flow acts on the wind deflector 5 to drive the elastic member 502 to extend. At this time, the annular baffle 501 moves downward synchronously with the wind deflector 5 to expose the opening 102. The air flow enters the housing 3 through the opening 102 and finally leaves from the guide pipe 4 and enters the outside. Since the guide pipe 4 is inclined, the housing 3 can rotate under the push of the air flow, so that the direction of the air flow changes continuously while entering the outside. Not only the coverage range of the air flow is wide, but also the rotating housing 3 and the guide pipe 4 can continuously cut the air flow to increase the degree of turbulence of the air flow, so that the air flow enters the outside in an undirected turbulent form, which can avoid the discomfort caused by the direct blowing of the air flow to the personnel below the air outlet.

[0031] In the state of high air flow velocity, when the annular baffle 501 moves downward, since the wind deflector 5 can cover the first air outlet 201 and the orthographic projection of the second air outlet 503 on the fixed end 2 has no contact with the first air outlet 201, the air flow is not easy to pass through the matching gap between the wind deflector 5 and the fixed end 2, ensuring that the air flow is concentrated and leaves from the guide pipe 4.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, "a plurality" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A central air-conditioning air outlet reversing device, characterized in that, Comprising: A connection end (1) for connecting with an air outlet duct. An annular side plate (101) is formed at the bottom of the connection end (1), and an opening (102) for air flow to pass through is formed on the annular side plate (101); A fixed end (2) for fixedly installing at an air outlet. The fixed end (2) is located below the connection end (1), and a first air outlet (201) is formed on the fixed end (2); A housing (3) which is sleeved on the annular side plate (101) in a ring shape. The upper and lower ends of the housing (3) are respectively connected to the annular side plate (101) and the fixed end (2) to form a rotatable rotating pair. The housing (3) is internally communicated with the connection end (1) through the opening (102); A guide pipe (4) installed on the housing (3) and internally communicated with the housing (3); A wind deflector (5). An annular baffle (501) is formed at the edge of the wind deflector (5). The annular baffle (501) can block the opening (102). The annular baffle (501) is connected to the connection end (1) through an elastic member (502). A second air outlet (503) is formed on the wind deflector (5). The wind deflector (5) can cover the first air outlet (201), and the orthographic projection of the second air outlet (503) on the fixed end (2) is not in contact with the first air outlet (201).

2. The central air-conditioning air outlet reversing device according to claim 1, characterized in that: The guide pipes (4) are equally spaced on the housing (3), and the length direction of the guide pipes (4) is inclined and does not point to the axis of the annular housing (3).

3. The central air-conditioning air outlet reversing device according to claim 1, characterized in that: The longitudinal section of the housing (3) is in a [shape, and the upper and lower ends of the housing (3) are respectively installed on the annular side plate (101) and the fixed end (2) through damping bearings (301) to form a rotatable rotating pair between the housing (3), the annular side plate (101), and the fixed end (2).

4. A central air-conditioning air outlet reversing device according to any one of claims 1-3, characterized in that: The elastic member (502) is specifically a gas spring. The length direction of the gas spring is parallel to the axis direction of the connection end (1), and the two ends of the gas spring are respectively connected to the annular baffle (501) and the connection end (1).

5. A central air-conditioning air outlet reversing device according to any one of claims 1-3, characterized in that: The annular baffle (501) contacts the inner surface of the fixed end (2) to form a moving pair along the axis direction of the fixed end (2).

6. The air outlet reversing device of a central air conditioner according to claim 5, characterized in that: The shape of the wind deflector (5) matches the shape of the inner bottom of the fixed end (2).

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