A folding fan structure vent device

Abstract

The present invention relates to the field of air conditioning systems, and more specifically to a folding fan structure vent device, comprising: an outer shell, fan blades, a telescopic plate, a fixed plate, a screw rod, a transmission shaft, bevel gears, a support seat, and a support rod. The screw rod is driven to rotate by the bevel gear transmission so that the fan blades on both sides can be opened synchronously to adjust the opening angle of each fan blade, thereby ensuring the air inlet and air outlet of the vent.

Description

Technical Field

[0001] The invention relates to the field of air conditioning systems, and in particular to a folding fan structure vent device. Background Art

[0002] In daily life, a variety of vents are set on the central air-conditioning system for air exchange. Generally, the vents are fixed vents and the air intake and air outlet cannot be adjusted. The existing technology can solve the air intake and air outlet of the vents, but cannot ensure the synchronization of the opening and closing of the fan blades. At the same time, manual adjustment cannot meet people's life needs. Therefore, how to provide a vent device to adjust the air intake and air outlet of the vents is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0003] Therefore, the present invention is made in view of the above problems, and the purpose of the present invention is to provide a folding fan structure vent device to adjust the air inlet and air outlet of the vent;

[0004] According to one aspect of the present invention, a folding fan structure vent device includes: a housing, fan blades, a telescopic plate, a fixed plate, a screw rod, a transmission shaft, a bevel gear, a support seat, and a support rod;

[0005] The housing is a tubular structure with a protrusion on one end wall, the end with the protrusion is an air outlet, and the other end is an air inlet;

[0006] The fan blade is a folding fan structure, which is cylindrical as a whole, and the axis of the fan blade coincides with the axis of the shell and is arranged inside the shell. When the fan blade is fully opened, the side edge is in contact with the inner wall of the shell;

[0007] There are two telescopic plates, which are arranged on the end surface of the fan blade near the air outlet of the housing in a 180-degree rotational symmetry along the axis of the fan blade, and through holes are correspondingly arranged on the two telescopic plates, and threads are arranged in the holes;

[0008] The fixing plate is fixedly connected to the inner wall of the housing adjacent to the air outlet, and its axis is perpendicular to the axis of the screw rod;

[0009] The two ends of the screw rod are respectively inserted into the through holes of the two telescopic plates, and the threads on the screw rod are engaged with the threads in the through holes of the telescopic plates;

[0010] like Figure 3 As shown, the transmission shaft is connected to the bevel gear provided at the front end of the screw rod through the helical gear provided at the front end, and the axis of the transmission shaft coincides with the axis of the housing;

[0011] The support seat is connected to the transmission shaft and the bevel gear, and the transmission shaft and the bevel gear are fixed on the fixed plate;

[0012] The support rod is in a cross shape, and the four ends of the cross shape extend from the wall surface of the support seat to the inner wall of the shell to fasten the support seat.

[0013] In one embodiment, the fan blades are made of plastic material.

[0014] In one embodiment, the folding point of the fan blade is a soft connection.

[0015] According to another aspect of the present invention, Figure 5-6 As shown, a folding fan structure vent device includes: a housing, fan blades, a telescopic plate, a fixing plate, a screw rod, and a motor;

[0016] The housing is a tubular structure with a protrusion on one end wall, the end with the protrusion is an air outlet, and the other end is an air inlet;

[0017] The fan blade is a folding fan structure, which is cylindrical as a whole, and the axis of the fan blade coincides with the axis of the shell and is arranged inside the shell. When the fan blade is fully opened, the side edge is in contact with the inner wall of the shell;

[0018] There are two telescopic plates, which are arranged on the end surface of the fan blade near the air outlet of the housing in a 180-degree rotational symmetry along the axis of the fan blade, and through holes are correspondingly arranged on the two telescopic plates, and threads are arranged in the holes;

[0019] The fixing plate is fixedly connected to the inner wall of the housing adjacent to the air outlet, and its axis is perpendicular to the axis of the screw rod;

[0020] The two ends of the screw rod are respectively inserted into the through holes of the two telescopic plates, and the threads on the screw rod are engaged with the threads in the through holes of the telescopic plates;

[0021] The motor is arranged outside the housing, and the motor shaft is connected to the lead screw.

[0022] Preferably, as an implementable embodiment, bearings are provided at both ends of the screw rod in the through holes of the housing to improve the stability of the screw rod rotation.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention ensures the air inlet and outlet of the vents by enabling the blades on both sides to open synchronously.

[0025] 3. The present invention utilizes automatic adjustment instead of manual adjustment to meet people's life needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0027] Figure 2 This is a schematic diagram of a fan blade structure according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of a helical bevel gear transmission structure according to an embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the telescopic plate structure according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of a support base according to an embodiment of the present invention.

[0031] Figure 6 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the fan blade structure of the second embodiment of the present invention. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that it is easy for a person skilled in the art to implement these embodiments. However, the present invention may be implemented in various forms, and therefore the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, parts that are not connected to the present invention will be omitted from the accompanying drawings.

[0034] Embodiment 1

[0035] like Figure 1-5 As shown, a folding fan structure vent device includes: a housing 1, fan blades 2, a telescopic plate 3, a fixing plate 4, a screw rod 5, a transmission shaft 6, a bevel gear 7, a support seat 8, and a support rod 9;

[0036] The housing 1 is a tubular structure with a protrusion on one end wall, the end with the protrusion is an air outlet, and the other end is an air inlet;

[0037] The fan blade 2 is a folding fan structure, which is cylindrical as a whole. The axis of the fan blade 2 coincides with the axis of the shell 1 and is arranged inside the shell 1. When the fan blade 2 is fully opened, the side edge is in contact with the inner wall of the shell 1.

[0038] There are two telescopic plates 3, which are arranged on the end surface of the fan blade 2 near the air outlet of the housing 1 in a 180-degree rotational symmetry along the axis of the fan blade 2. Through holes are correspondingly arranged on the two telescopic plates 3, and threads are arranged in the holes;

[0039] The fixing plate 4 is fixedly connected to the inner wall of the housing 1 adjacent to the air outlet, and its axis is perpendicular to the axis of the screw rod 5;

[0040] There are two screw rods 5, one end of which is provided with a bevel tooth 7, and the other end is inserted into the through holes of the two telescopic plates 3, respectively, and the threads on the screw rods 5 are engaged with the threads in the through holes of the telescopic plates 3;

[0041] like Figure 3 As shown, the transmission shaft 6 is connected to the bevel gear 7 provided at the front end of the screw rod 5 through the helical gear provided at the front end, and the axis of the transmission shaft 6 coincides with the axis of the housing 1;

[0042] The support seat 8 is connected to the transmission shaft 6 and the bevel gear 7, and the transmission shaft 6 and the bevel gear 7 are fixed on the fixing plate 4;

[0043] The support rod 9 is in a cross shape, and the four ends of the cross shape extend from the wall surface of the support seat 8 to the inner wall of the shell 1 to fasten the support seat 8.

[0044] Preferably, as an implementable embodiment, the fan blade 2 is made of plastic material to provide better sealing.

[0045] Preferably, as an implementable embodiment, the folding part of the fan blade 2 is a soft connection to achieve better stretchability.

[0046] The working principle of this embodiment is as follows:

[0047] During operation, the bevel teeth 7 at the front end of the transmission shaft 6 mesh with the bevel teeth corresponding to the two screw rods 5 for transmission, and the telescopic plate 3 moves with the rotation of the screw rod 5, driving the fan blades 2 to expand and contract, thereby ensuring the air intake and air outlet of the vent.

[0048] Embodiment 2

[0049] like Figure 6-7 As shown, a folding fan structure vent device includes: a housing 11, fan blades 22, a telescopic plate 33, a fixing plate 44, a screw rod 55, and a motor 66;

[0050] The housing 11 is a tubular structure with a protrusion on one end wall, the end with the protrusion is an air outlet, and the other end is an air inlet;

[0051] The fan blade 22 is a folding fan structure, which is cylindrical as a whole. The axis of the fan blade 22 coincides with the axis of the housing 11 and is arranged inside the housing 11. When the fan blade 22 is fully opened, the side edge is in contact with the inner wall of the housing 11.

[0052] There are two telescopic plates 33, which are arranged on the end surface of the fan blade 22 near the air outlet of the housing 11 in a 180-degree rotational symmetry along the axis of the fan blade 22, and through holes are correspondingly arranged on the two telescopic plates 33, and threads are arranged in the holes;

[0053] The fixing plate 44 is fixedly connected to the inner wall of the housing 11 adjacent to the air outlet, and its axis is perpendicular to the axis of the screw rod 55;

[0054] The two ends of the screw rod 55 are respectively inserted into the through holes of the two telescopic plates 33, and the threads on the screw rod 55 are engaged with the threads in the through holes of the telescopic plates 33;

[0055] The motor 66 is disposed outside the housing 11 , and the shaft of the motor 66 is connected to the screw rod 55 .

[0056] Preferably, as an implementable embodiment, bearings are provided at both ends of the screw rod 55 in the through holes of the housing 11 to improve the rotation stability of the screw rod 55 .

[0057] The working principle of this embodiment is as follows:

[0058] The motor 66 works, the screw rod 55 rotates, and the telescopic plate 33 arranged on the screw rod 55 realizes the synchronous contraction and extension of the fan blades 22 through the positive and negative threads on the screw rod 55, thereby ensuring the air inlet and outlet of the vent.

Claims

1. A folding fan structure vent device, comprising: Housing (1), fan blades (2), telescopic plate (3), fixed plate (4), screw rod (5), transmission shaft (6), bevel gear (7), support seat (8), support rod (9); The characteristic is that: the housing (1) is a tubular structure with a protrusion on one end wall, the end with the protrusion is an air outlet, and the other end is an air inlet; The fan blade (2) is a folding fan structure and is cylindrical in shape as a whole. The axis of the fan blade (2) coincides with the axis of the housing (1) and is arranged inside the housing (1). When the fan blade (2) is fully opened, the side edge of the fan blade (2) abuts against the inner wall of the housing (1); The number of the telescopic plates (3) is two, and they are arranged on the end surface of the fan blade (2) adjacent to the air outlet of the housing (1) in a 180-degree rotational symmetry along the axis of the fan blade (2); through holes are correspondingly arranged on the two telescopic plates (3), and threads are arranged in the holes; The fixing plate (4) is fixedly connected to the inner wall of the housing (1) adjacent to the air outlet, and its axis is perpendicular to the axis of the screw rod (5); The two ends of the screw rod (5) are respectively inserted into the through holes of the two telescopic plates (3), and the threads on the screw rod (5) are engaged with the threads in the through holes of the telescopic plates (3); The transmission shaft (6) is connected to the bevel gear (7) provided at the front end of the screw rod (5) through the helical gear provided at the front end, and the axis of the transmission shaft (6) coincides with the axis of the housing (1); The support seat (8) is connected to the transmission shaft (6) and the bevel gear (7), and the transmission shaft (6) and the bevel gear (7) are fixed on the fixing plate (4); The support rod (9) is in the shape of a cross, and the four ends of the cross extend from the wall surface of the support seat (8) to the inner wall of the shell (1) to fasten the support seat (8). The fan blades (2) are made of plastic material, and the folded parts of the fan blades (2) are softly connected.

Images