Air inlet structure of floor air feeder

Abstract

The utility model discloses an air inlet structure of a floor air feeder, which relates to the technical field of floor air feeders and comprises an air feeder shell, an air inlet is arranged on one side of the air feeder shell, an air door shell is fixedly arranged on the inner wall of the air inlet, and a micro motor is fixedly connected to one side of the air door shell. An output shaft of the micro motor is fixedly connected with a driving shaft, a mounting groove is formed in the circumferential outer wall of the driving shaft, an air inlet door is fixedly connected to the inner wall of the mounting groove, a reinforcing plate is fixedly connected between the air inlet door and the mounting groove, and the section of the reinforcing plate is in a right triangle shape. A temperature sensor is fixedly arranged on one side of the air door shell. The size of the air inlet can be conveniently and automatically adjusted according to the air inlet temperature.

Description

Technical Field

[0001] This utility model relates to the field of floor ventilation fan technology, and in particular to an air inlet structure for a floor ventilation fan. Background Technology

[0002] Floor fans are a type of ventilation equipment commonly used in modern buildings. They deliver treated air into the room through the space beneath the floor. The supply air temperature is generally high, and the airflow moves slowly upwards in a laminar, piston-like flow pattern, creating thermal stratification. The lower part is a unidirectional flow zone with stable airflow and a clear temperature and concentration gradient; the upper part is a mixing zone with turbulent airflow but a relatively uniform temperature and concentration field. This air supply method ensures that personnel are in a relatively clean and fresh air environment and improves the air quality in the work area. The air intake structure is one of the main structural components of a floor fan, primarily used for intake, drawing air into the floor fan.

[0003] Currently, the air intake structure of existing floor fans mainly includes a damper housing and an air inlet. Air is introduced into the floor fan through the air inlet for filtration, heating, and other operations.

[0004] However, similar to the air intake structure of the floor ventilator mentioned above, the size of its air intake is fixed during use, making it inconvenient to adjust the size of the air intake and, consequently, to adjust the air intake volume according to the indoor air temperature. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an air intake structure for a floor blower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air intake structure for a floor ventilation fan includes a fan housing, an air inlet on one side of the fan housing, a damper housing fixedly mounted on the inner wall of the air inlet, a micro motor fixedly connected to one side of the damper housing, a drive shaft fixedly connected to the output shaft of the micro motor, an installation groove on the outer circumference of the drive shaft, an air inlet damper fixedly connected to the inner wall of the installation groove, a reinforcing plate fixedly connected between the air inlet damper and the installation groove, the reinforcing plate having a right-angled triangular cross-section, and a temperature sensor fixedly mounted on one side of the damper housing.

[0008] The present invention is further configured such that baffles are fixedly connected to the inner walls of the four sides of the damper housing, and the air inlet damper is in contact with the baffles.

[0009] The present invention is further configured such that a hook is fixedly connected to the top of the baffle, and the hook is adapted to the fan housing.

[0010] The present invention is further configured such that the damper housing is composed of two horizontal door frames and two vertical door frames, and the horizontal door frames and the vertical door frames are integrally stretched and formed by a mold.

[0011] The present invention is further configured such that the horizontal door frame and the vertical door frame are made of aluminum alloy.

[0012] The present invention is further configured such that both ends of the horizontal door frame and the vertical door frame are provided with bevels, and a fixing frame is provided at the connection between the horizontal door frame and the vertical door frame. The top and one side of the fixing frame are provided with first connecting holes, and both the horizontal door frame and the vertical door frame are provided with second connecting holes corresponding to the first connecting holes. A limit rod is inserted into the inner wall of the first connecting hole.

[0013] The present invention is further configured such that a limiting plate is fixedly connected to the top of the limiting rod, and a compression spring is fixedly provided between the limiting plate and the fixing frame.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The air intake structure of this floor blower uses a temperature sensor to detect the temperature of the air entering the air intake during use. Based on the detected air temperature, a micro motor drives the drive shaft to rotate, which in turn drives the air intake damper to adjust the angle, thereby adjusting the size of the air intake. At the same time, the stability of the air intake damper can be increased by the reinforcing plate and the mounting groove, thus increasing the service life of the device.

[0016] 2. The air inlet structure of this floor blower involves assembling the two horizontal and two vertical door frames into a U-shape during installation of the damper housing. Then, the fixing bracket is installed at the connection between the horizontal and vertical door frames. Next, the first connecting hole aligns with the second connecting hole. The spring force is used to push the limiting rod into the second connecting hole. After assembly, the damper housing is secured to the air inlet using hooks, completing the installation. Similarly, during disassembly, the damper housing is first removed from the air inlet, then the limiting rod is pulled to remove it from the second connecting hole. Finally, the fixing bracket is removed. The operation is simple and facilitates the assembly and disassembly of the damper housing.

[0017] 3. The air intake structure of this floor blower, with the horizontal and vertical door frames integrally stretched and formed by mold, allows for rapid production of the door housing and convenient assembly. The aluminum alloy material increases the heat resistance and corrosion resistance of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the air inlet structure of a floor blower proposed in this utility model.

[0019] Figure 2 This is a partial three-dimensional structural diagram of the air inlet structure damper housing and air inlet damper of a floor blower proposed in this utility model;

[0020] Figure 3 This is a side sectional view of the air inlet structure damper housing of a floor blower proposed in this utility model.

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the air inlet structure baffle and hook corner of a floor blower proposed in this utility model.

[0023] In the diagram: 1. Fan housing; 2. Damper housing; 201. Horizontal door frame; 202. Vertical door frame; 3. Micro motor; 4. Inlet damper; 5. Temperature sensor; 6. Drive shaft; 7. Reinforcing plate; 8. Mounting slot; 9. First connecting hole; 10. Limiting plate; 11. Limiting rod; 12. Compression spring; 13. Second connecting hole; 14. Fixing bracket; 15. Baffle; 16. Hook. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0026] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0027] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0028] Reference Figure 1 and Figure 2 An air intake structure for a floor ventilation fan includes a fan housing 1, an air inlet on one side of the fan housing 1, a damper housing 2 fixedly mounted on the inner wall of the air inlet, a micro motor 3 fixedly connected to one side of the damper housing 2, a drive shaft 6 fixedly connected to the output shaft of the micro motor 3, an installation groove 8 on the outer circumference of the drive shaft 6, an air inlet damper 4 fixedly connected to the inner wall of the installation groove 8, a reinforcing plate 7 fixedly connected between the air inlet damper 4 and the installation groove 8, the reinforcing plate 7 having a right-angled triangular cross-section, and a temperature sensor 5 fixedly mounted on one side of the damper housing 2.

[0029] Reference Figure 5 All four inner walls of the damper housing 2 are fixedly connected with baffles 15. The air inlet damper 4 fits against the baffles 15. The baffles 15 can block the gap between the air inlet damper 4 and the damper housing 2. The top of the baffles 15 is fixedly connected with hooks 16. The hooks 16 are adapted to the fan housing 1. The hooks 16 are U-shaped and the width of the hooks 16 is the same as the thickness of the fan housing 1, which can quickly install the damper housing 2.

[0030] Reference Figures 2 to 4 The damper housing 2 consists of two horizontal door frames 201 and two vertical door frames 202. The horizontal door frames 201 and vertical door frames 202 are integrally stretched and formed by a mold, allowing for rapid production of the damper housing 2. The horizontal door frames 201 and vertical door frames 202 are made of aluminum alloy, which increases the heat resistance and corrosion resistance of the device. Both ends of the horizontal door frames 201 and vertical door frames 202 are beveled, and a fixing bracket 14 is provided at the connection between the horizontal door frames 201 and vertical door frames 202. The fixing bracket 14 has a first connecting hole 9 on its top and one side. Both the horizontal door frame 201 and the vertical door frame 202 are provided with a second connecting hole 13 corresponding to the first connecting hole 9. A limiting rod 11 is inserted into the inner wall of the first connecting hole 9. The limiting rod 11, the first connecting hole 9 and the second connecting hole 13 facilitate the quick assembly and disassembly of the horizontal door frame 201 and the vertical door frame 202. A limiting plate 10 is fixedly connected to the top of the limiting rod 11. A compression spring 12 is fixedly provided between the limiting plate 10 and the fixing frame 14. The elastic force of the compression spring 12 facilitates the pushing of the limiting rod 11 into the first connecting hole 9 and the second connecting hole 13.

[0031] Working principle: During use, the temperature sensor 5 detects the temperature of the air entering through the air inlet. Based on the detected air temperature, the micro motor 3 drives the drive shaft 6 to rotate, thereby adjusting the angle of the air inlet damper 4 to regulate the size of the air inlet. Simultaneously, the reinforcing plate 7 and mounting groove 8 increase the stability of the air inlet damper 4 and extend the lifespan of the device. When installing the damper housing 2, first assemble the two horizontal door frames 201 and two vertical door frames 202 into a U-shape, and then install the fixing bracket 14 on the horizontal door frames. At the connection between frame 201 and vertical door frame 202, the first connecting hole 9 is aligned with the second connecting hole 13. By squeezing the spring 12, the limiting rod 11 is pushed into the second connecting hole 13. After assembly, the damper housing 2 is snapped onto the air inlet by the hook 16, thus completing the installation of the damper housing 2. Similarly, when disassembling, the damper housing 2 is first removed from the air inlet, then the limiting rod 11 is pulled to remove it from the second connecting hole 13, and finally the fixing bracket 14 is removed. The operation is simple and facilitates the assembly and disassembly of the damper housing 2.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air inlet structure for a floor ventilation fan, comprising a fan housing (1), wherein an air inlet is provided on one side of the fan housing (1), characterized in that, A damper housing (2) is fixedly installed on the inner wall of the air inlet. A micro motor (3) is fixedly connected to one side of the damper housing (2). A drive shaft (6) is fixedly connected to the output shaft of the micro motor (3). An installation groove (8) is opened on the outer circumference of the drive shaft (6). An air inlet damper (4) is fixedly connected to the inner wall of the installation groove (8). A reinforcing plate (7) is fixedly connected between the air inlet damper (4) and the installation groove (8). The reinforcing plate (7) has a right-angled triangle cross section. A temperature sensor (5) is fixedly installed on one side of the damper housing (2).

2. The air inlet structure of a floor ventilation fan according to claim 1, characterized in that, The inner walls of the damper housing (2) are all fixedly connected with baffles (15), and the air inlet damper (4) is in contact with the baffles (15).

3. The air inlet structure of a floor ventilation fan according to claim 2, characterized in that, The top of the baffle (15) is fixedly connected with a hook (16), which is adapted to the fan housing (1).

4. The air inlet structure of a floor ventilation fan according to claim 1, characterized in that, The damper housing (2) is composed of two horizontal door frames (201) and two vertical door frames (202), and the horizontal door frames (201) and the vertical door frames (202) are integrally stretched and formed by a mold.

5. The air inlet structure of a floor ventilation fan according to claim 4, characterized in that, The horizontal door frame (201) and the vertical door frame (202) are made of aluminum alloy.

6. The air inlet structure of a floor ventilation fan according to claim 5, characterized in that, Both ends of the horizontal door frame (201) and the vertical door frame (202) are provided with bevels, and a fixing frame (14) is provided at the connection between the horizontal door frame (201) and the vertical door frame (202). The top and one side of the fixing frame (14) are provided with first connecting holes (9), and both the horizontal door frame (201) and the vertical door frame (202) are provided with second connecting holes (13) corresponding to the first connecting holes (9). A limit rod (11) is inserted into the inner wall of the first connecting hole (9).

7. The air inlet structure of a floor ventilation fan according to claim 6, characterized in that, The top of the limiting rod (11) is fixedly connected to a limiting plate (10), and a compression spring (12) is fixedly provided between the limiting plate (10) and the fixing frame (14).

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