Folding fan type air adjusting door

Abstract

The utility model relates to a folding fan type air damper, which relates to the technical field of air dampers, and comprises an air inlet barrel, a conical core body is arranged at the axis position of the air inlet barrel, a positioning blade and a plurality of movable blades are arranged between the conical core body and the air inlet barrel, a rotating rod is arranged at the axis position of the positioning blade, and the rotating rod is externally connected with an angle control plate; the movable blades are arranged around the outer edge of the cone core body, the connecting mechanisms are arranged on the edges of every two adjacent movable blades, the motor is installed in the cone core body and drives the movable blades to be folded, the movable blades are folded and rotate to achieve adjustment of the air inlet amount, the wind resistance influence of the blades is further reduced, and the size of the air adjusting door is reduced on the basis of existing equipment. A plurality of supporting rods are arranged between the cone core body and the air inlet barrel, the supporting rods play a supporting role through hollow steel pipe structures, electric wires are arranged in the supporting rods, the electric wires are externally connected with a motor control system and a power source, a motor in the cone core body is controlled, and manual adjustment is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of air dampers, in particular to a folding fan type air damper. Background Art

[0002] The air damper is an important part of the fan equipment, which plays a role in regulating the inlet flow of the fan and has an important impact on the performance of the fan. Air dampers of different specifications and models are produced according to the size of the fan inlet.

[0003] In the prior art, the blades on the air damper are fixed in position and controlled by a separate angle control plate. The air inlet volume is adjusted by rotating the blades. When manually adjusting the specific air volume entering the fan equipment on site, due to the influence of wind resistance, it is very difficult to manually adjust. A turntable, multiple handles and actuators need to be equipped outside the air damper, resulting in an increase in the floor area of the fan equipment and an increase in production costs. In addition, during actual use, the positions of multiple blades are fixed, and there is still a large wind resistance after rotation. Summary of the Utility Model

[0004] In order to improve the problems of the air damper in use in the above background art, the utility model provides a folding fan type air damper.

[0005] The folding fan type air damper provided by the utility model adopts the following technical scheme:

[0006] A folding fan type air damper includes an air inlet cylinder. A conical core is arranged at the axial center position of the air inlet cylinder. A positioning blade and multiple movable blades are arranged between the conical core and the air inlet cylinder. A rotating rod is arranged on the axis position of the positioning blade, and the rotating rod is externally connected to an angle control plate fixedly arranged outside the air inlet cylinder; the movable blades are arranged around the outer edge of the conical core, and a connecting mechanism is arranged at the edges of adjacent two movable blades. A motor is installed inside the conical core, and the motor drives the movable blades to fold.

[0007] Preferably, multiple annular grooves are correspondingly formed around the outer edge of the conical core and the inner edge of the air inlet cylinder. A moving rod is arranged on the axis position of the movable blade, and both ends of the moving rod are respectively slidably arranged in the annular grooves on the outer edge of the conical core and the inner edge of the air inlet cylinder.

[0008] Preferably, the connecting mechanism includes a chute and a protrusion, and the chute and the protrusion are correspondingly and cooperatively clamped.

[0009] Preferably, five movable blades are sequentially arranged around the conical core, including a first movable blade and second to fifth movable blades. The first movable blade is provided with a protrusion at the lower edge, the second to fifth movable blades are provided with a chute at the upper edge and a protrusion at the lower edge, and the positioning blade is arranged at the sixth position and is provided with a chute at the upper edge.

[0010] Preferably, a plurality of support rods are arranged between the conical core body and the air inlet cylinder. The support rods are evenly arranged around the rear section of the conical core body. The support rods adopt a hollow steel pipe structure, which plays a supporting role and is convenient for arranging wires inside the support rods.

[0011] Preferably, wires are arranged inside the support rods. The wires are connected to the motor and are respectively externally connected to the motor control system and the power supply.

[0012] Preferably, wind sensors are arranged on the support rods. The wind sensors are connected to a display system arranged outside the air inlet cylinder to judge and display the air volume.

[0013] In summary, the utility model has the following beneficial technical effects:

[0014] 1. The utility model arranges positioning vanes and movable vanes between the conical core body and the air inlet cylinder. The movable vanes are folded and rotated to adjust the air intake volume, further reducing the influence of the wind resistance of the vanes and reducing the volume of the air damper on the basis of the existing equipment.

[0015] 2. The support rods adopt a hollow steel pipe structure to play a supporting role. At the same time, wires are arranged inside. The wires are externally connected to the motor control system and the power supply to control the motor inside the conical core body. The motor drives the movable vanes to fold to achieve automatic control without manual adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall structural schematic diagram of a folding fan type air damper according to an embodiment of the utility model;

[0017] Figure 2 is a partial side sectional view of a folding fan type air damper according to an embodiment of the utility model;

[0018] Figure 3 is an installation schematic diagram of the positioning vane and the movable vane according to an embodiment of the utility model;

[0019] Figure 4 is an installation schematic diagram of the support rod according to an embodiment of the utility model;

[0020] Figure 5 is a structural schematic diagram of the movable vane according to an embodiment of the utility model.

[0021] Description of the reference numerals: 1, air inlet cylinder; 2, conical core body; 3, positioning vane; 4, movable vane; 5, rotating rod; 6, angle control plate; 7, connecting mechanism; 8, motor; 9, annular groove; 10, moving rod; 11, sliding groove; 12, protrusion; 13, first movable vane; 14, second to fifth movable vanes; 15, support rod; 16, wire; 17, motor control system; 18, power supply; 19, wind sensor; 20, display system. Detailed implementation mode

[0022] The following is a further detailed description of the present utility model in conjunction with Figures 1 - 5 the present utility model will be further described in detail below.

[0023] An embodiment of the present utility model discloses a folding fan type air damper.

[0024] Referring to Figure 1 、 Figure 2 、 Figure 3 A folding fan type air damper includes an air inlet cylinder 1 arranged at the inlet of a fan. A taper core body 2 is arranged at the axial center position of the air inlet cylinder 1. A positioning blade 3 and multiple movable blades 4 are arranged between the taper core body 2 and the air inlet cylinder 1. A rotating rod 5 is arranged at the axial line position of the positioning blade 3, and the rotating rod 5 is externally connected to an angle control plate 6 fixedly arranged on the outer side of the air inlet cylinder 1; only one angle control plate 6 is arranged and is directly welded on the outer side of the air inlet cylinder 1, reducing potential safety hazards caused by the loosening of the nut between the angle control plate 6 and the air inlet cylinder 1; the movable blades 4 are arranged around the outer edge of the taper core body 2, and a connecting mechanism 7 is arranged at the edge between two adjacent movable blades 4. A motor 8 is installed inside the taper core body 2, and the motor 8 drives the movable blades 4 to fold.

[0025] Referring to Figure 1 、 Figure 3 Multiple annular grooves 9 are correspondingly and circumferentially formed on the outer edge of the taper core body 2 and the inner edge of the air inlet cylinder 1. A moving rod 10 is arranged at the axial line position of the movable blade 4, and both ends of the moving rod 10 are slidably arranged in the annular grooves 9 on the outer edge of the taper core body 2 and the inner edge of the air inlet cylinder 1 respectively.

[0026] Referring to Figure 3 、 Figure 5 The connecting mechanism 7 includes a chute 11 and a protrusion 12, and the chute 11 and the protrusion 12 are correspondingly and cooperatively clamped.

[0027] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 Five movable blades 4 are sequentially arranged around the taper core body 2, including the first movable blade 13 and the second to fifth movable blades 14. The first movable blade 13 is provided with a protrusion 12 at the lower edge, the second to fifth movable blades 14 are provided with a chute 11 at the upper edge and a protrusion 12 at the lower edge, and the positioning blade 3 is arranged at the sixth position, and the positioning blade 3 is provided with a chute 11 at the upper edge.

[0028] Referring to Figure 1 、 Figure 4 Multiple support rods 15 are arranged between the taper core body 2 and the air inlet cylinder 1. The support rods 15 are evenly arranged around the rear section of the taper core body 2. The support rods 15 use a hollow steel pipe structure to play a supporting role, and at the same time, it is convenient to arrange wires 16 inside the support rods 15.

[0029] Referring toFigure 2 , Figure 4 Inside the support rod, there is a wire 16 which is connected to the motor 8 and externally connected to the motor control system 17 and the power supply 18 respectively. The power supply 18 supplies power and controls the output of the motor 8 through the motor control system 17.

[0030] Refer to Figure 1 , Figure 2 , Figure 4 On the support rod 15, there is a wind sensor 19 which is connected to a display system 20 arranged outside the air inlet cylinder 1. The display system 20 is connected to a pointer meter. The wind sensor 19 senses the wind force passing through the air inlet cylinder 1, transmits information to the display system 20, and the display system 20 judges the air volume and displays it on the pointer meter.

[0031] The implementation principle of a folding fan type air damper in an embodiment of the present invention is as follows: The air damper in the embodiment of the present invention removes redundant structures on the original basis, and a connecting mechanism 7 is arranged at the edge of the movable blade 4. The position of the positioning blade 3 is fixed and rotates along the axis under the control of the angle control plate 6. The 5 movable blades 4 rotate and move along the axis of the cone body 2; when the air damper is fully opened, the positioning blade 3 and multiple movable blades 4 are folded together and arranged along the air inlet direction of the fan to reduce the influence of the wind resistance of the blades. When the air damper reduces the air intake volume, all the blades are rotated 90° to block the air inlet of the fan. The motor 8 inside the cone body 2 outputs, driving the first movable blade 13 to move along the annular groove 9. When the protrusion 12 at the edge of the first movable blade 13 moves to the position of the upper edge chute 11 of the second movable blade, the protrusion 12 is clamped with the chute 11, driving the second movable blade to start rotating and moving along the axis of the cone body 2 until the protrusion 12 at the lower edge of the second movable blade is clamped with the upper edge chute 11 of the third movable blade, and so on. When the protrusion 12 at the lower edge of the fifth movable blade is clamped with the upper edge chute 11 of the positioning blade 3, all the blades are accurately positioned and the air damper is fully closed; when the air damper increases the flow rate, the motor 8 inside the cone body 2 rotates back, folds all the blades, and controls all the blades to rotate 90° through the angle control plate 6.

[0032] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A folding fan type air regulating door, characterized in that: The invention comprises an air inlet cylinder (1), wherein a cone body (2) is arranged at the axis position of the air inlet cylinder (1), a positioning blade (3) and a plurality of movable blades (4) are arranged between the cone body (2) and the air inlet cylinder (1), a rotating rod (5) is arranged at the axis position of the positioning blade (3), and the rotating rod (5) is externally connected to an angle control plate (6) fixedly arranged outside the air inlet cylinder (1); the movable blades (4) are arranged around the outer edge of the cone body (2), and a connecting mechanism (7) is arranged at the edges of two adjacent movable blades (4); a motor (8) is installed inside the cone body (2), and the motor (8) drives the movable blades (4) to fold.

2. The folding fan type air regulating door according to claim 1, characterized in that: A plurality of annular grooves (9) are formed around the outer edge of the conical body (2) and the inner edge of the air inlet tube (1), and a moving rod (10) is arranged at the axis position of the movable blade (4). The two ends of the moving rod are respectively slidably arranged in the annular grooves (9) on the outer edge of the conical body (2) and the inner edge of the air inlet tube (1).

3. The folding fan type air regulating door according to claim 1, characterized in that: The connecting mechanism (7) comprises a sliding groove (11) and a protrusion (12), and the sliding groove (11) and the protrusion (12) are correspondingly engaged and snap-fitted.

4. The folding fan type air regulating door according to claim 3, characterized in that: Five movable blades (4) are arranged in sequence around the cone body (2), including a first movable blade (13) and second to fifth movable blades (14); the first movable blade (13) is provided with a protrusion (12) on the lower edge; the second to fifth movable blades (14) are provided with a slide groove (11) on the upper edge and a protrusion (12) on the lower edge; the positioning blade (3) is arranged at the sixth position, and the positioning blade (3) is provided with a slide groove (11) on the upper edge.

5. The folding fan type air regulating door according to claim 1, characterized in that: A plurality of support rods (15) are arranged between the conical body (2) and the air inlet cylinder (1), the support rods (15) being evenly arranged around the rear section of the conical body (2), and the support rods (15) are made of a hollow steel tube structure.

6. The folding fan type air regulating door according to claim 5, characterized in that: An electric wire (16) is arranged inside the support rod, and the electric wire (16) is connected to the motor (8) and is externally connected to a motor control system (17) and a power source (18).

7. The folding fan type air regulating door according to claim 5, characterized in that: A wind sensor (19) is arranged on the support rod (15), and the wind sensor (19) is connected to a display system (20) arranged outside the air inlet cylinder (1).

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