Adjustable centrifugal fan

Abstract

The utility model relates to the field of ventilators, and discloses an adjustable centrifugal ventilator which comprises a ventilator body, a movable ring and an air guide frame, a motor is fixedly connected to one end of the ventilator body, a connecting ring is fixedly connected to one side of the ventilator body, and the movable ring is movably installed on one side of the connecting ring; a positioning bolt is movably installed between the movable ring and the connecting ring, an air guide frame is fixedly connected to one side of the movable ring, a vertical pipe is fixedly connected to one end of the air guide frame, a transverse pipe is fixedly connected to one side of the air guide frame, gears are movably installed at the two ends in the air guide frame, and baffles are fixedly connected to the ends, close to each other, of the gears; an adjusting rod is mounted at one end of the gear. Through cooperative use of the transverse pipe, the vertical pipe, the air guide frame and the baffle, a worker can conveniently and freely adjust the vertical pipe according to needs, then the worker can more easily connect a pipeline with the device, and the worker can conveniently adjust the flow of air according to needs.

Description

Technical Field

[0001] The present application relates to the technical field of ventilators, and in particular to an adjustable centrifugal ventilator. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Among fans, centrifugal fans are included. When the impeller rotates, the gas between the blades of the centrifugal fan obtains kinetic energy due to the centrifugal force and is discharged from the periphery of the impeller. It is guided by the volute-shaped casing and flows toward the fan outlet, thereby forming a negative pressure in the center of the impeller, allowing external airflow to flow in continuously to supplement it, so that the fan can discharge gas.

[0003] At present, the related centrifugal fans lack an adjustable air outlet structure, which makes it difficult for the staff to freely adjust the direction of the air outlet structure according to the pipeline connection direction, and therefore it is difficult for the staff to connect the external pipeline. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the present application provides an adjustable centrifugal fan.

[0005] The adjustable centrifugal fan provided in this application adopts the following technical solution:

[0006] An adjustable centrifugal fan comprises a fan body, a movable ring and an air guide frame, wherein one end of the fan body is fixedly connected to a motor, one side of the fan body is fixedly connected to a connecting ring, one side of the connecting ring is movably installed with a movable ring, the inner side of the movable ring is movably installed with a movable bead, a positioning bolt is movably installed between the movable ring and the connecting ring, one side of the movable ring is fixedly connected to an air guide frame, one end of the air guide frame is fixedly connected to a vertical pipe, one side of the air guide frame is fixedly connected to a horizontal pipe, both ends of the air guide frame are movably installed with gears, the end of the gear close to each other is fixedly connected to a baffle, and one end of the gear is installed with an adjusting rod.

[0007] The gas is transported by driving the ventilator body through a motor. The staff can turn the movable ring to rotate the air guide frame according to the direction of the pipeline, and drive the vertical pipe to rotate through the air guide frame to adjust the direction of the vertical pipe. According to the direction of the pipeline, the pipeline can be freely connected to the vertical pipe or the horizontal pipe and the other pipeline can be closed to transport the gas. The staff can also turn the adjusting rod to drive the gear and the baffle to rotate. The baffle can block the gas and control the gas flow by using the baffle.

[0008] Preferably, a connecting pipe is fixedly connected to the other end of the ventilator body, and a flange is fixedly connected to one end of the connecting pipe.

[0009] By fixing the external air guide duct to the flange, the external air guide duct can be connected to the connecting pipe and the ventilator body.

[0010] Preferably, a bolt hole is provided inside the connecting ring, and the positioning bolt coincides with the bolt hole.

[0011] By screwing the positioning bolt into the bolt hole, the friction between the connecting ring and the movable ring is increased, so that the connecting ring and the movable ring are fixed.

[0012] Preferably, one end of the vertical tube and one side of the horizontal tube are fixedly connected to a connection frame, and a socket is provided inside the connection frame.

[0013] By connecting the external pipe to the connection frame, and then screwing the external fixing bolts between the external pipe and the connection frame and passing through the insertion holes, the external structure can be connected and fixed to the vertical pipe and the horizontal pipe.

[0014] Preferably, both sides of the bottom of the ventilator body are fixedly connected with support frames, and the bottom of the support frame is fixedly connected with a support plate.

[0015] The fan body can be supported by the support frame, and the contact area between the support frame and the external structure is increased by the support plate, thereby improving the stability of the placement of the fan body.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] The direction of the vertical pipe can be adjusted by turning the movable ring to rotate the air guide frame. According to the direction of the pipeline, the pipeline can be freely connected to the vertical pipe or the horizontal pipe and the other pipeline can be closed to transport the gas. The gear and the baffle can be rotated by turning the adjusting rod. The baffle can block the gas. The gas flow can be controlled by using the baffle, which makes it convenient for the staff to freely adjust the vertical pipe according to the needs, thereby making it easier for the staff to connect the pipeline with the device and also convenient for the staff to adjust the gas flow according to the needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the partial structure of the connecting ring and the movable ring of the embodiment of the application;

[0019] Figure 2 It is an overall stereogram of an embodiment of the application;

[0020] Figure 3 It is a schematic diagram of the partial structure of the gear and baffle of the embodiment of the application.

[0021] Explanation of the accompanying reference numerals: 1. Fan body; 2. Motor; 3. Connecting ring; 301. Bolt hole; 4. Movable bead; 5. Movable ring; 6. Horizontal tube; 7. Vertical tube; 8. Connecting frame; 9. Air guide frame; 10. Positioning bolt; 11. Connecting pipe; 1101. Flange; 12. Support frame; 1201. Support plate; 13. Adjusting rod; 14. Baffle; 1401. Gear. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3 This application is described in further detail.

[0023] The present application embodiment discloses an adjustable centrifugal fan. Figure 1-3 A kind of adjustable centrifugal fan comprises a fan body 1, a movable ring 5 and an air guide frame 9, one end of the fan body 1 is fixedly connected with a motor 2, one side of the fan body 1 is fixedly connected with a connecting ring 3, one side of the connecting ring 3 is movably installed with a movable ring 5, the inner side of the movable ring 5 is movably installed with a movable bead 4, a positioning bolt 10 is movably installed between the movable ring 5 and the connecting ring 3, one side of the movable ring 5 is fixedly connected with an air guide frame 9, one end of the air guide frame 9 is fixedly connected with a vertical pipe 7, one side of the air guide frame 9 is fixedly connected with a horizontal pipe 6, both ends of the inside of the air guide frame 9 are movably installed with gears 1401, the end close to the gear 1401 is fixedly connected with a baffle 14, and one end of the gear 1401 is installed with an adjusting rod 13.

[0024] The staff connects the external pipeline to the device and drives the fan body 1 through the motor 2 to transport the gas. The staff can turn the movable ring 5 to rotate the air guide frame 9 according to the direction of the pipeline. The movable bead 4 reduces the friction between the connecting ring 3 and the movable ring 5. The vertical pipe 7 is driven to rotate by the air guide frame 9 to adjust the direction of the vertical pipe 7. The staff can freely choose to connect the pipeline with the vertical pipe 7 or the horizontal pipe 6 and close the pipeline on the other side according to the direction of the pipeline to transport the gas, so that the staff can freely adjust the vertical pipe 7 as needed, and it is easier for the staff to connect the pipeline with the device. The staff can also turn the adjusting rod 13 to drive the gear 1401 and the baffle 14 to rotate. The baffle 14 can block the gas. The gas flow is controlled by using the baffle 14, so that the staff can adjust the gas flow as needed.

[0025] Reference Figure 1 The other end of the fan body 1 is fixedly connected to a connecting pipe 11, and one end of the connecting pipe 11 is fixedly connected to a flange 1101. By fixing the external air guide duct to the flange 1101, the external air guide duct can be connected to the connecting pipe 11 and the fan body 1.

[0026] Reference Figure 1A bolt hole 301 is provided inside the connecting ring 3, and the positioning bolt 10 coincides with the bolt hole 301. By screwing the positioning bolt 10 into the bolt hole 301, the friction between the connecting ring 3 and the movable ring 5 is increased, thereby fixing the connecting ring 3 and the movable ring 5.

[0027] Reference Figure 1 One end of the vertical tube 7 and one side of the horizontal tube 6 are fixedly connected to a connecting frame 8, and a socket is provided inside the connecting frame 8. By connecting the external pipeline to the connecting frame 8, and then screwing the external fixing bolt between the external pipeline and the connecting frame 8 and passing through the socket, the external structure can be connected and fixed to the vertical tube 7 and the horizontal tube 6.

[0028] Reference Figure 2 A support frame 12 is fixedly connected to both sides of the bottom of the fan body 1, and a support plate 1201 is fixedly connected to the bottom of the support frame 12. The fan body 1 can be supported by the support frame 12, and the contact area between the support frame 12 and the external structure is increased by the support plate 1201, thereby improving the stability of the placement of the fan body 1.

[0029] The implementation principle of an adjustable centrifugal fan in the embodiment of the present application is: the fan body 1 is driven by the motor 2 to transport the gas, the air guide frame 9 is rotated by turning the movable ring 5 to adjust the direction of the vertical pipe 7, and according to the direction of the pipeline, the pipeline can be freely selected to connect with the vertical pipe 7 or the horizontal pipe 6 and close the pipeline on the other side to transport the gas, and the gear 1401 and the baffle 14 are driven to rotate by turning the adjustment rod 13, the baffle 14 can block the gas, and the gas flow is controlled by utilizing the baffle 14.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable centrifugal fan, comprising a fan body (1), a movable ring (5) and an air guide frame (9), characterized in that: One end of the ventilator body (1) is fixedly connected to a motor (2); one side of the ventilator body (1) is fixedly connected to a connecting ring (3); one side of the connecting ring (3) is movably mounted with a movable ring (5); a movable bead (4) is movably mounted inside the movable ring (5); a positioning bolt (10) is movably mounted between the movable ring (5) and the connecting ring (3); one side of the movable ring (5) is fixedly connected to an air guide frame (9); one end of the air guide frame (9) is fixedly connected to a vertical pipe (7); one side of the air guide frame (9) is fixedly connected to a horizontal pipe (6); gears (1401) are movably mounted at both ends of the interior of the air guide frame (9); a baffle (14) is fixedly connected to the end of the gear (1401) that is close to the gear (1401); and an adjusting rod (13) is mounted on one end of the gear (1401).

2. The adjustable centrifugal fan according to claim 1, characterized in that: The other end of the ventilator body (1) is fixedly connected to a connecting pipe (11), and one end of the connecting pipe (11) is fixedly connected to a flange (1101).

3. The adjustable centrifugal fan according to claim 1, characterized in that: A bolt hole (301) is provided inside the connecting ring (3), and the positioning bolt (10) coincides with the bolt hole (301).

4. The adjustable centrifugal fan according to claim 1, characterized in that: One end of the vertical tube (7) and one side of the horizontal tube (6) are both fixedly connected to a connection frame (8), and a plug hole is provided inside the connection frame (8).

5. The adjustable centrifugal fan according to claim 1, characterized in that: Both sides of the bottom of the ventilator body (1) are fixedly connected to support frames (12), and the bottom of the support frame (12) is fixedly connected to a support plate (1201).

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