CN215370322U - Automatic air volume control device of fan - Google Patents
Automatic air volume control device of fan Download PDFInfo
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- CN215370322U CN215370322U CN202121599927.3U CN202121599927U CN215370322U CN 215370322 U CN215370322 U CN 215370322U CN 202121599927 U CN202121599927 U CN 202121599927U CN 215370322 U CN215370322 U CN 215370322U
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- concentric ring
- air duct
- fan
- volume control
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Abstract
The utility model discloses an automatic air volume control device of a fan, which comprises: an air duct; an electric push rod; the air quantity adjusting plate comprises a central plate coaxially and movably arranged in the air duct and a plurality of concentric ring air deflectors; the concentric ring support frame is arranged in the air duct and is used for supporting the air quantity adjusting plate; the tension springs are connected with the concentric ring wind shields so that the concentric ring wind shields cling to the concentric ring supporting frames; and the top frame comprises a movable frame and a plurality of ejector rods, the movable frame is arranged in the air duct and is connected with the electric push rod, and the ejector rods are connected with the movable frame. The utility model has the beneficial effects that: the central plates and the concentric ring wind deflectors are pushed by the electric push rods to be away from the concentric ring support frames in sequence, so that the air quantity of the air outlet is kept stable, and the stability of air quantity regulation is guaranteed.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to an automatic air volume control device for a fan.
Background
The air output of the fan is in direct proportion to the sectional area of the fan pipe and the airflow speed, namely the larger the airflow speed or the flow sectional area is, the larger the air output of the fan is. Based on this, the air output control mode of current fan has two kinds usually, thereby the first kind is that the regulation motor power makes the air current velocity of flow change adjust the air output size, and the advantage of this kind of mode is complete machine simple structure, but the energy consumption is high, and is with high costs, is applied to the higher environment of air output regulation precision requirement usually. The second is to set an adjusting device at the outlet of the fan to adjust the sectional area of the outlet of the fan to adjust the air output, taking the adjusting device including a baffle plate and a motor driving the baffle plate to rotate as an example, the baffle plate is set in the outlet of the fan and connected with the outlet of the fan in a rotating way, and the sectional area of the outlet can be adjusted by adjusting the inclination angle of the baffle plate. The utility model is an improvement made aiming at the adjusting device in the second air outlet quantity control mode of the fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problem of poor air volume regulation stability of the existing air volume regulation device of the fan, and provides an automatic air volume control device of the fan, which comprises:
the air duct comprises an air inlet and an air outlet which are communicated;
the electric push rod is coaxially arranged in the air duct;
the air quantity adjusting plate comprises a central plate and a plurality of concentric ring air deflectors, the central plate is coaxially and movably arranged in the air duct, the central plate is arranged in a central ring of the concentric ring air deflectors, the central plate is connected with the electric push rod, and the concentric ring air deflectors are respectively and concentrically arranged along the radial direction of the air duct;
the concentric ring supporting frame is arranged in the air duct and is used for supporting the air volume adjusting plate;
the tension springs are connected with the concentric ring wind deflectors to enable the concentric ring wind deflectors to cling to the concentric ring supporting frames; and
the roof-rack, including set up in adjustable shelf and a plurality of ejector pin in the dryer, the adjustable shelf is followed the dryer radially set up and with electric putter connects, and is a plurality of the ejector pin is followed respectively the radial interval of dryer is arranged, the ejector pin with the adjustable shelf is connected, every concentric ring deep bead correspondence is equipped with at least one the ejector pin, and the concentric ring deep bead of different diameters corresponds the length of ejector pin is different.
Further, the automatic air volume control device of fan still includes:
the fixing frame is fixedly arranged in the air duct; one end of the tension spring is connected with the concentric ring wind shields, the other end of the tension spring is connected with the fixing frame, and the electric push rod is installed on the fixing frame.
Furthermore, the movable frame and the fixed frame are parallel horizontal rod bodies.
Further, the concentric ring support frame comprises:
a plurality of support rings, the plurality of support rings being concentric and of different diameters;
the connecting rods are connected with at least two support rings, and at least one connecting rod is fixedly connected with the air duct; and
and the rubber cushion layer is paved on the axial end surface of the support ring.
The beneficial effects of the further scheme are as follows: the air flow adjusting plate is effectively supported and the air flow area is maximized under the action of a plurality of concentric support rings with different diameters; through the effect of the rubber cushion layer, the air quantity adjusting plate is hermetically connected with the support ring, the airtightness is ensured, and the air quantity adjusting precision is improved.
Furthermore, the inner wall of the air duct is also provided with a protruding ring, and the axial end face of the protruding ring, which is close to the air outlet, and the axial end face of the rubber cushion layer, which is close to the air outlet, are in the same plane.
The beneficial effects of the further scheme are as follows: the positions of the convex ring and the rubber cushion layer are limited, so that the stability of the air adjusting plate is ensured, and the air adjusting plate can also play a role in prepositioning during installation.
Further, the length direction of the ejector rods is parallel to the axial lead of the air duct, and the length of the ejector rods is inversely proportional to the radial distance between the ejector rods and the axial lead of the air duct.
The beneficial effects of the further scheme are as follows: through the length of injecing the ejector pin, make electric putter promote the roof-rack and remove the in-process, a plurality of concentric rings deep bead that correspond are orderly by the back-up in proper order, make the air-out region and air output by accurate control.
Furthermore, a flange plate used for being connected with a fan is arranged at the air inlet end of the air duct.
The utility model has the beneficial effects that: the central plates and the concentric ring wind deflectors are pushed by the electric push rods to be away from the concentric ring support frames in sequence, so that the air quantity of the air outlet keeps stable change; the electric push rod is connected with the concentric ring wind shields through the top frame fixed in structure, the concentric ring wind shields are always in a stable state and are not easy to shake or swing, and the concentric ring wind shields are always kept stable under the action of the tension spring, so that the stability of air volume adjustment is further ensured; in addition, because the sizes of the concentric ring wind deflectors are fixed, the air volume change value corresponding to the opening or closing of the concentric ring wind deflectors is a determined value, the number and the sizes of the concentric ring wind deflectors can be designed according to the required air volume adjusting range, and the air volume control is fine.
Drawings
Fig. 1 is a schematic perspective view of an automatic air volume control device of a fan according to the present invention.
Fig. 2 is a schematic diagram of a half-section three-dimensional structure of the automatic air volume control device of the fan in fig. 1.
Figure 3 is a schematic perspective view of the central plate and a concentric ring of raised windguard of figure 2.
Fig. 4 is a schematic half-section perspective view of the concentric ring support of fig. 3.
In the figure, 1-air duct; 1.1-air inlet; 1.2-air outlet; 1.3-raised ring; 1.4-flange plate; 2, an electric push rod; 3-concentric ring support frames; 3.1-rubber cushion layer; 3.2-support ring; 3.3-connecting rod; 4-a centre plate; 5-concentric ring wind deflectors; 6-a tension spring; 7-a movable frame; 8-a top rod; 9-fixing frame.
Detailed Description
The utility model is described in further detail below with reference to the figures 1 to 4 and the specific examples.
Fig. 1 and 2 show an automatic air volume control device for a fan, comprising: dryer 1, electric putter 2, air regulation board, concentric ring support frame 3, a plurality of extension springs 6, roof-rack and mount 9.
The air duct 1 comprises an air inlet 1.1 and an air outlet 1.2 which are communicated, and concentric raised rings 1.3 are arranged at intervals at one end, close to the air outlet 1.2, of the inner wall of the air duct 1 so as to be used for mounting concentric ring support frames 3 and limiting the movement of the air quantity adjusting plate. The axial end of the air inlet 1.1 of the air duct 1 is provided with a flange plate 1.4 used for being connected with a fan, and when the automatic air volume control device of the fan is installed, the automatic air volume control device of the fan is connected with the outlet end of the fan through the flange plate 1.4 and a bolt, the structure of the fan is not changed, and the size of the air duct 1 can be designed according to the model of the fan.
Air regulation board includes that the coaxial heart activity sets up central core 4 and 3 concentric ring deep bead 5 in dryer 1, and central core 4 sets up in the central ring of the concentric ring deep bead 5 that the internal diameter is minimum among 3 concentric ring deep bead 5, and central core 4 and electric putter 2's telescopic link end-to-end connection, therefore electric putter 2's telescopic link is flexible, directly drives central core 4 and removes along the axis direction of dryer 1, and 3 concentric ring deep bead 5 are respectively along the radial concentric range of dryer 1. As shown in fig. 1 and 2, when the plate surface of the central plate 4 and the plate surfaces of the 3 concentric ring wind deflectors 5 are on the same horizontal plane, the air inlet 1.1 and the air outlet 1.2 of the air duct 1 are isolated, and the air volume is minimum in this state.
As shown in fig. 3 and 4, the concentric ring support frame 3 is disposed in the air duct 1 for supporting the air volume adjusting plate, and specifically, the concentric ring support frame 3 includes: a rubber cushion 3.1, 3 support rings 3.2 and 6 connecting rods 3.3. The 3 support rings 3.2 are concentric and have different diameters, in fact, the 3 support rings 3.2 are arranged at the joint of the air adjusting plate, and the support rings 3.2 are concentric with the air duct 1. 6 connecting rods 3.3 connect 3 support rings 3.2 into a whole along the radial direction of the air duct 1, and 2 connecting rods 3.3 at the outermost side are connected with the inner wall of the air duct 1 so as to fix the support rings 3.2 in the air duct 1. The concentric ring support frame 3 in this embodiment is disposed at one end of the air duct 1 close to the air outlet 1.2, and correspondingly, as shown in fig. 4, the rubber cushion layer 3.1 is disposed at the upper end of the support ring 3.2 for sealing the air volume adjusting plate and the support ring 3.2, especially sealing the joint of the air volume adjusting plate. The inner wall of the air duct 1 is also provided with a raised ring 1.3, and the axial end face of the raised ring 1.3, which is close to the air outlet 1.2, and the upper end of the rubber cushion layer 3.1 are in the same horizontal plane.
The roof-rack is including setting up adjustable shelf 7 and 6 ejector pins 8 in dryer 1. The adjustable shelf 7 and the fixed shelf 9 in this embodiment are parallel horizontal rod bodies and are all arranged in the air duct 1, wherein the fixed shelf 9 is fixedly arranged in the air duct 1, and the electric push rod 2 is coaxially arranged in the air duct 1 and connected with the fixed shelf 9. The adjustable shelf 7 is radially set up and is connected with electric putter 2 along dryer 1, and 6 ejector pins 8 are arranged along dryer 1's radial interval respectively, and 6 ejector pins 8 are arranged along the length direction interval of adjustable shelf 7 promptly, and the length direction of every ejector pin 8 is parallel with dryer 1's axial lead, and the lower extreme and the adjustable shelf 7 of ejector pin 8 are connected, and the upper end and the concentric ring deep bead 5 of ejector pin 8 keep the interval. The length of the 6 push rods 8 is inversely proportional to the radial distance from the axial lead of the air duct 1. Specifically, 6 ejector rods 8 are arranged at intervals corresponding to the lower ends of the 3 concentric ring wind deflectors 5 in the embodiment, and the 2 ejector rods 8 corresponding to the lower ends of the concentric ring wind deflectors 5 are identical and symmetrical in length. Along with the increase of the diameter of the concentric ring wind shield 5, the length of the corresponding ejector rod 8 is shortened, for example, the length of the ejector rod 8 corresponding to the lower part of the concentric ring wind shield 5 at the outermost side is shortest, so that the distance between the ejector rod 8 and the concentric ring wind shield 5 at the outermost side is farthest, and when the electric push rod 2 stretches and retracts, the concentric ring wind shield 5 at the outermost side is driven to move.
In order to guarantee the quick reset of concentric ring deep bead 5, extension spring 6 has 6, and the symmetry sets up respectively in electric putter 2's both sides, and wherein, the lower extreme symmetry of every concentric ring deep bead 5 is equipped with two extension springs 6, and extension spring 6 makes concentric ring deep bead 5 hug closely on concentric ring support frame 3, and the upper end and the concentric ring deep bead 5 of extension spring 6 are connected, and the lower extreme and the mount 9 of extension spring 6 are connected.
The air volume of the air duct 1 shown in fig. 2 is the smallest. As shown in fig. 3, when the telescopic rod of the electric push rod 2 pushes upwards, the telescopic rod pushes out the central plate 4 from the concentric ring wind shield 5, and simultaneously the movable frame 7 and the ejector rod 8 on the movable frame move together, and at this time, the air volume of the air duct 1 is increased. When the telescopic rod of the electric push rod 2 is further pushed upwards, the central plate 4 is continuously pushed, and meanwhile, the concentric ring wind shield 5 close to the central plate 4 is ejected out by the ejector rod 8 at the lower end of the central plate 4, and at the moment, the air volume of the air duct 1 is further increased. The telescopic link of electric putter 2 continues upwards to promote, ejecting other concentric ring deep bead 5 in proper order, and the amount of wind lasts the increase until all concentric ring deep beads 5 are ejected, and the amount of wind is the biggest, and extension spring 6 is in tensile state. When electric putter 2's telescopic link retrieved downwards, 6 pulling concentric ring deep bead 5 descendants that correspond of extension spring, and the amount of wind reduces, and along with electric putter 2's telescopic link continuously retrieves, concentric ring deep bead 5 descends gradually and resets to initial position, until as the state shown in figure 2, the amount of wind of dryer 1 was adjusted to minimum state this moment. Therefore, the adjustment of the air volume of the air duct 1 can be realized only by adjusting the extension and retraction of the telescopic rod of the electric push rod 2, so that the air volume of the fan provided with the device in the embodiment is controlled.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.
Claims (7)
1. An automatic air volume control device of a fan is characterized by comprising:
the air duct comprises an air inlet and an air outlet which are communicated;
the electric push rod is coaxially arranged in the air duct;
the air quantity adjusting plate comprises a central plate and a plurality of concentric ring air deflectors, the central plate is coaxially and movably arranged in the air duct, the central plate is arranged in a central ring of the concentric ring air deflectors, the central plate is connected with the electric push rod, and the concentric ring air deflectors are respectively and concentrically arranged along the radial direction of the air duct;
the concentric ring supporting frame is arranged in the air duct and is used for supporting the air volume adjusting plate;
the tension springs are connected with the concentric ring wind deflectors to enable the concentric ring wind deflectors to cling to the concentric ring supporting frames; and
the roof-rack, including set up in adjustable shelf and a plurality of ejector pin in the dryer, the adjustable shelf is followed the dryer radially set up and with electric putter connects, and is a plurality of the ejector pin is followed respectively the radial interval of dryer is arranged, the ejector pin with the adjustable shelf is connected, every concentric ring deep bead correspondence is equipped with at least one the ejector pin, and the concentric ring deep bead of different diameters corresponds the length of ejector pin is different.
2. The automatic wind volume control device of claim 1, further comprising:
the fixing frame is fixedly arranged in the air duct; one end of the tension spring is connected with the concentric ring wind shields, the other end of the tension spring is connected with the fixing frame, and the electric push rod is installed on the fixing frame.
3. The automatic air volume control device of the fan as claimed in claim 2, wherein the movable frame and the fixed frame are parallel horizontal rods.
4. The automated wind volume control system of claim 1, wherein the concentric ring support comprises:
a plurality of support rings, the plurality of support rings being concentric and of different diameters;
the connecting rods are connected with at least two support rings, and at least one connecting rod is fixedly connected with the air duct; and
and the rubber cushion layer is paved on the axial end surface of the support ring.
5. The automatic air volume control device of the fan as claimed in claim 4, wherein the inner wall of the air duct is further provided with a protruding ring, and an axial end surface of the protruding ring close to the air outlet and an axial end surface of the rubber cushion close to the air outlet are coplanar.
6. The automatic air volume control device of the fan as claimed in any one of claims 1 to 5, wherein the length direction of the plurality of top rods is parallel to the axial line of the air duct, and the length of the plurality of top rods is inversely proportional to the radial distance from the axial line of the air duct.
7. The automatic air volume control device of the fan as claimed in claim 6, wherein a flange plate for connecting with the fan is arranged at the air inlet end of the air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599927.3U CN215370322U (en) | 2021-07-14 | 2021-07-14 | Automatic air volume control device of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599927.3U CN215370322U (en) | 2021-07-14 | 2021-07-14 | Automatic air volume control device of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370322U true CN215370322U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121599927.3U Active CN215370322U (en) | 2021-07-14 | 2021-07-14 | Automatic air volume control device of fan |
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| CN (1) | CN215370322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013339A (en) * | 2022-04-29 | 2022-09-06 | 满洲里达赉湖热电有限公司 | Air blower inlet air volume adjusting and guiding device |
| CN115234986A (en) * | 2022-08-04 | 2022-10-25 | Tcl空调器(中山)有限公司 | Window type air conditioner and air duct structure thereof |
-
2021
- 2021-07-14 CN CN202121599927.3U patent/CN215370322U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013339A (en) * | 2022-04-29 | 2022-09-06 | 满洲里达赉湖热电有限公司 | Air blower inlet air volume adjusting and guiding device |
| CN115234986A (en) * | 2022-08-04 | 2022-10-25 | Tcl空调器(中山)有限公司 | Window type air conditioner and air duct structure thereof |
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