Double-inlet and double-outlet centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a double-inlet and double-outlet centrifugal fan, a bearing is inserted into the surface of an output shaft of a motor, the bearing and the motor are both located on the upper surface of a base, the bearing is flush with the bottom face of the motor, and a fan is inserted into the tail end of the output shaft of the motor and penetrates through the interior of the bearing. An air channel is formed in the surface of the top end of the fan, and a partition plate is fixedly connected into the air channel. The motor drives the fan to work, air is discharged through the air duct, the interior of the air duct is separated into a two-side double-air-outlet mode through the partition plate, then the double-air-outlet effect is adjusted through opening and closing of the blocking piece in the tail end of the air duct, and therefore the purposes of flexibly controlling the whole device and improving the efficiency are achieved. And the practical performance of the whole device is enhanced, the defect that an existing centrifugal fan needs to be driven by a two-way motor at the same time in the process of achieving double air outlet is overcome, and the effect of using convenience of the centrifugal fan is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a double-inlet and double-outlet centrifugal fan. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air induction of boilers and industrial furnaces; cooling and ventilation of air conditioning equipment and household appliances; drying and conveying of grain; wind tunnel air source and inflation and propulsion of hovercraft, etc.

[0003] In actual use of existing centrifugal fans, since workers are often required to use bidirectional motors or combine fans to achieve dual air outlets, the power consumption of existing centrifugal fans is significantly increased during use, which makes it difficult to reduce the cost of using the centrifugal fans. Utility Model Content

[0004] The purpose of the present invention is to provide a double-inlet and double-outlet centrifugal fan to address the deficiencies of the prior art and to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-inlet and double-outlet centrifugal fan, comprising a base, a motor fixedly connected to the surface of the base, and an output shaft inserted into one side of the motor, a bearing inserted into the surface of the output shaft of the motor, and the bearing and the motor are both located on the upper surface of the base, and the bearing is flush with the bottom surface of the motor, the end of the output shaft of the motor passes through the interior of the bearing and is inserted with a fan, and an air duct is opened on the top surface of the fan, and a partition is fixedly connected to the interior of the air duct.

[0006] As an optimal technical solution of the present invention, the end surface of the partition is fixedly connected to a hinge, and the end surface of the partition is hinged to a baffle through a hinge, and the surface of the baffle is fixedly connected to a locking ring, which effectively enhances the stability of each component and at the same time enhances the support strength of the overall device.

[0007] As an optimal technical solution of the present invention, the locking ring is located on the outer side of the back side of the baffle near the edge, and the surface of the locking ring is movably connected with a fixed component, which better protects the use of the entire device from being affected and enhances the practicality of operating the entire device.

[0008] As an optimal technical solution of the present invention, the fixing assembly includes a transverse shaft, a spring and a mounting block. The transverse shaft passes through and is inserted into the interior of the locking ring, and a spring is fixedly connected between the surface end of the transverse shaft and the locking ring. The mounting block is fixedly connected to the top surface of the transverse shaft, which better enhances the balance of the overall device and effectively enhances the flexibility of use of the overall device.

[0009] As a preferred technical solution of the present invention, a sliding ball is rotatably connected to the inner surface of the mounting block, and the sliding ball has a smooth spherical appearance, which further enhances the operability of the entire device and ensures its firmness and stability during use.

[0010] As an optimal technical solution of the present invention, a card groove is provided on the inner wall surface of the air duct, and the card groove and the sliding ball are on the same horizontal line, which maximizes the staff's control over the entire device, improves the experience of using the entire device, and reduces the difficulty of operation for the staff.

[0011] As an optimal technical solution of the present invention, there are two baffles, which are respectively installed on the left and right side surfaces of the end of the partition through hinges, and the diameter of the baffle is half of the diameter of the air duct, which effectively enhances the practical performance of the overall device and expands the activity of the overall device.

[0012] The beneficial effects of the utility model are:

[0013] The double-inlet and double-outlet centrifugal fan is driven by a motor to work and discharge air through an air duct. The interior of the air duct is separated into a double-outlet mode on both sides by a partition, and the double-outlet effect is adjusted by an internal switch at the end of the air duct through a baffle, thereby achieving flexible control of the entire device, enhancing the practical performance of the entire device, and improving the defect of existing centrifugal fans that they often need to use bidirectional motors to drive them simultaneously in the process of achieving double air outlets, thereby improving the convenience of using the centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the air duct structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the baffle structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the horizontal axis structure of the utility model.

[0018] In the figure: 1. Base; 2. Motor; 3. Bearing; 4. Fan; 5. Air duct; 6. Partition; 7. Hinge; 8. Baffle; 9. Locking ring; 10. Horizontal axis; 11. Spring; 12. Mounting block; 13. Sliding ball; 14. Slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figure 1-4 As shown, in this embodiment: a double-inlet and double-outlet centrifugal fan includes a base 1, a motor 2 is fixedly connected to the surface of the base 1, and an output shaft is inserted into one side of the motor 2, and the motor 2 is used to provide power for the operation of the fan 4, and a bearing 3 is inserted into the surface of the output shaft of the motor 2, and the bearing 3 and the motor 2 are both on the upper surface of the base 1, and the bearing 3 is flush with the bottom surface of the motor 2, and the bearing 3 is used to strengthen the connection strength between the output shaft of the motor 2 and the fan 5. The end of the output shaft of the motor 2 is connected to the fan 4 through the inside of the bearing 3, and the top surface of the fan 4 is provided with an air duct 5, and the inside of the air duct 5 is fixedly connected to a partition 6, and the inside of the air duct 5 is isolated by the partition 6.

[0022] Furthermore, the end surface of the partition 6 is fixedly connected to a hinge 7, and the end surface of the partition 6 is hinged to a baffle 8 through the hinge 7, and the surface of the baffle 8 is fixedly connected to a locking ring 9, and the baffle 8 is used to block the end outlet of the air duct 5.

[0023] Furthermore, the locking ring 9 is located on the outer side of the back side of the baffle 8 near the edge, and the surface of the locking ring 9 is movably connected to a fixing component, which provides support for fixing the position of the baffle 8 through the locking ring 9.

[0024] Furthermore, the fixing assembly includes a transverse shaft 10, a spring 11 and a mounting block 12. The transverse shaft 10 is inserted into the interior of the locking ring 9, and the spring 11 is fixedly connected between the surface end of the transverse shaft 10 and the locking ring 9. The mounting block 12 is fixedly connected to the top surface of the transverse shaft 10, and the transverse shaft 10 is used to provide support for the locking of the sliding ball 13 and the slot 14.

[0025] Furthermore, a sliding ball 13 is rotatably connected to the inner surface of the mounting block 12 , and the sliding ball 13 has a smooth spherical appearance, and the position of the blocking piece 8 is fixed by means of the sliding ball 13 .

[0026] Furthermore, a slot 14 is formed on the inner wall surface of the air duct 5 , and the slot 14 and the sliding ball 13 are on the same horizontal line. The sliding ball 13 is fixed by the slot 14 , thereby fixing the blocking effect of the baffle 8 .

[0027] Furthermore, there are two baffles 8, which are respectively installed on the left and right surfaces of the end of the partition 6 through hinges 7, and the diameter of the baffle 8 is half of the diameter of the air duct 5. The baffle 8 is used to provide shielding for the end of the air duct 5.

[0028] The method of using this embodiment is: When using, please refer to Figure 1-4 First, the staff needs to manually start the motor 2, and insert the output shaft of the motor 2 into the bearing 3 to drive the fan 4 to work, thereby generating wind force, and then use the air duct 5 to transport the wind force generated by the fan 4 to the outside. During the air supply process, according to the current needs, the baffle 8 at the end of the air duct 5 is manually opened and closed. When opening and closing the baffle 8, the horizontal axis 10 is restricted by the locking ring 9 and installed on the back of the baffle 8. At the same time, the spring 11 is used to provide power for the movement and reset of the horizontal axis 10. When the baffle 8 is opened and closed, the horizontal axis 10 is controlled by the drive of the spring 11 to move inside the lock ring 9, thereby controlling the sliding ball 13 to be engaged in the slot 14 to limit the position of the baffle 8.

[0029] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A double-inlet and double-outlet centrifugal fan, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a motor (2), and an output shaft is plugged into one side of the motor (2). A bearing (3) is plugged into the surface of the output shaft of the motor (2), and the bearing (3) and the motor (2) are both located on the upper surface of the base (1), and the bearing (3) is flush with the bottom surface of the motor (2). A fan (4) is plugged into the end of the output shaft of the motor (2) through the interior of the bearing (3), and an air duct (5) is opened on the top surface of the fan (4), and a partition (6) is fixedly connected to the interior of the air duct (5).

2. A double-inlet and double-outlet centrifugal fan according to claim 1, characterized in that: The end surface of the partition (6) is fixedly connected to a hinge (7), and the end surface of the partition (6) is hinged to a baffle (8) through the hinge (7), and the surface of the baffle (8) is fixedly connected to a locking ring (9).

3. The double-inlet and double-outlet centrifugal fan according to claim 2, characterized in that: The locking ring (9) is located on the outer side of the back side of the blocking piece (8) near the edge, and the surface of the locking ring (9) is movably connected to a fixing component.

4. The double-inlet and double-outlet centrifugal fan according to claim 3, characterized in that: The fixing assembly comprises a transverse shaft (10), a spring (11) and a mounting block (12); the transverse shaft (10) is inserted into the interior of the locking ring (9); a spring (11) is fixedly connected between the surface end of the transverse shaft (10) and the locking ring (9); and the mounting block (12) is fixedly connected to the top surface of the transverse shaft (10).

5. The double-inlet and double-outlet centrifugal fan according to claim 4, characterized in that: A sliding ball (13) is rotatably connected inside the surface of the mounting block (12), and the sliding ball (13) has an appearance of a smooth sphere.

6. The double-inlet and double-outlet centrifugal fan according to claim 1, characterized in that: A clamping groove (14) is provided on the inner wall surface of the air duct (5), and the clamping groove (14) and the sliding ball (13) are on the same horizontal line.

7. The double-inlet and double-outlet centrifugal fan according to claim 2, characterized in that: There are two baffles (8), which are respectively mounted on the left and right surfaces of the end of the partition (6) through hinges (7), and the diameter of the baffle (8) is half of the diameter of the air duct (5).

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