CN210716041U - Novel air valve structure - Google Patents
Novel air valve structure Download PDFInfo
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- CN210716041U CN210716041U CN201921857257.3U CN201921857257U CN210716041U CN 210716041 U CN210716041 U CN 210716041U CN 201921857257 U CN201921857257 U CN 201921857257U CN 210716041 U CN210716041 U CN 210716041U
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- fan
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- air valve
- linkage shifting
- rotating shaft
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Abstract
The utility model provides a novel air valve structure, wherein a plurality of fan-shaped blades are arranged in an air valve frame, and the novel air valve structure also comprises a micro switch, a stepping motor and a rotating shaft, and the fan-shaped blades comprise a head fan, a tail fan and a plurality of middle fans; the shaft sleeve of the tail fan is fixedly connected with the bottom end of the rotating shaft; the shaft sleeves of the middle fan and the head fan are sequentially sleeved on the rotating shaft; the upper surface of the left side of the tail fan is provided with a leaf collecting column which extends upwards to the height of the head fan, and the upper surface of the right side of the tail fan is provided with a linkage shifting block; the lower surface of the left side of the middle fan is provided with a linkage shifting plate, and the upper surface of the right side of the middle fan is provided with a linkage shifting block; the first fan is fixedly connected with the air valve frame, the lower surface of the left side of the first fan is provided with a linkage shifting plate, and the lower surface of the right side of the first fan is provided with a limiting column which extends downwards to the height of the tail fan; the linkage shifting block of each fan blade is positioned at the inner side of the fan blade linkage shifting plate on the upper layer, and when the tail fan rotates forwards, the middle fan is pushed to completely collect the disturbance; when the tail fan rotates reversely, the middle fan is pulled out from the lower part of the head fan in sequence, the ventilation air quantity of the scheme is larger, and the occupied area is smaller.
Description
Technical Field
The utility model belongs to the technical field of air purification equipment, specifically be a novel blast gate structure.
Background
With the importance of people on the indoor air quality, more and more fresh air fans and supporting equipment thereof enter common families. Different from an air purifier, the fresh air fan is used for purifying outdoor air and then discharging the purified air into a room and discharging indoor dirty air to the outside, so that holes need to be formed in a wall or a window, and a ventilation air valve needs to be installed. Because the indoor space is limited, simultaneously in order not to influence interior decoration effect, the blast gate volume needs to be as little as possible, but blast gate volume reduction can cause the reduction of the volume of airing exhaust air. The volume of the ventilation air valve influences the ventilation air quantity, and how to increase the ventilation quantity on the basis of using the air valve with the volume as small as possible is a problem which is always discussed by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a small, but blast gate structure that the amount of wind is big.
In order to achieve the above object of the present invention, the present invention adopts the following technical scheme:
a novel air valve structure is characterized in that a plurality of fan-shaped blades are arranged in an air valve frame, the fan-shaped blades are jointly arranged on the same rotating shaft, the novel air valve structure also comprises a micro switch, a stepping motor and a rotating shaft, the fan-shaped blades are arranged in layers, and the fan-shaped blade positioned at the uppermost layer in the fan-shaped blades is called a first fan and is a fixed blade; the tail fan is positioned at the lowest layer and is directly driven by a motor to rotate; the blades arranged between the first fan and the tail fan are sleeved on the rotating shaft and can freely rotate around the rotating shaft; when the tail fan rotates forwards, the middle blades are sequentially pushed to rotate forwards until all the blades are disturbed below the first blades; when the tail fan rotates reversely, other blades are pulled out from the lower part of the head fan in sequence, and each blade is unfolded to close the air valve.
The utility model provides a novel air valve structure, each fan-shaped blade is stacked and installed in an air valve frame, and the circle center position of each fan-shaped blade is fixedly connected with a shaft sleeve; the fan-shaped blades comprise a head fan, a tail fan and a plurality of middle fans; the shaft sleeve of the tail fan is fixedly connected with the bottom end of the rotating shaft; the shaft sleeves of the middle fan and the head fan are sequentially sleeved on the rotating shaft; the upper surface of the left side of the tail fan is provided with a leaf collecting column which extends upwards to the height of the head fan, and the upper surface of the right side of the tail fan is provided with a linkage shifting block; the lower surface of the left side of the middle fan is provided with a linkage shifting plate, and the upper surface of the right side of the middle fan is provided with a linkage shifting block; the first fan is fixedly connected with the air valve frame, the lower surface of the left side of the first fan is provided with a linkage shifting plate, and the lower surface of the right side of the first fan is provided with a limiting column which extends downwards to the height of the tail fan; the linkage shifting block of each fan blade is positioned at the inner side of the fan blade linkage shifting plate on the upper layer.
The utility model discloses an air valve structure makes fresh air machine and respiratory equipment's the ventilation amount of wind bigger, and the effect is better, and the area that occupies simultaneously is less, does not influence indoor pleasing to the eye.
The utility model discloses an optimal scheme does:
preferably, the linkage shifting block is semicircular, and an arc protruding outwards is arranged on the linkage shifting plate and at the same circumferential position of the linkage shifting block.
Preferably, the bottom of the rotating shaft is a square column, and a limiting arc plate is arranged on the shaft body of the rotating shaft; the shaft sleeve of the tail fan is provided with a central square groove, the shaft sleeve of the tail fan is sleeved at the bottom of the rotating shaft, and the central square groove is clamped with the square column.
Preferably, a limiting rib structure is arranged in the shaft sleeve of the middle fan, the limiting rib is matched with the limiting arc plate, and the length of the limiting rib is set according to the rotation range allowed by the middle fan.
Drawings
FIG. 1 is a view of the structure of the blast gate;
FIG. 2 is a cross-sectional view of the damper c-c according to FIG. 1;
FIG. 3 is a view showing the fan blade of the air valve;
FIG. 4 is a view showing the fan blades in a folded state;
FIG. 5 is an exploded view of the air valve;
FIG. 6 is a view of the frame of the air valve;
FIG. 7 is a view showing the construction of the rotary shaft;
FIG. 8 is a view of the structure of the tail fan;
FIG. 9a is the top view of the middle fan b;
FIG. 9b is a bottom view of the middle fan b;
FIG. 10a is a top view of the middle fan c;
fig. 10b is a bottom view of the middle fan c.
In the figure: the air valve comprises an air valve frame-1, a head fan-2, a tail fan-3, a middle fan b-4, a middle fan c-5, a microswitch-6, a motor-7, a rotating shaft-8, a leaf-closing column-9, a linkage shifting plate-10, a guide rail-11, a limit arc plate-12, a linkage shifting block-13, a baffle-14, a limit rib-15 and a chute-16.
Detailed Description
The technical solution of the present invention will be described in detail, clearly and completely with reference to the accompanying drawings. It should be noted that the words "upper" and "lower" indicating the orientation in the present specification are defined for the upper and lower orientations of fig. 1 and 2; in the description, the words "left" and "right" are defined in terms of their rotation states with respect to the orientation description of the fan-shaped blades, and "left" is the counterclockwise side of the fan-shaped blades; "Right" is the clockwise side of the fan blade. The utility model discloses "corotation" reversal "only for the convenience distinguish the rotation direction of flabellum, does not represent corresponding result and must obtain through corotation, perhaps must obtain through the reversal. The directional terms of the present invention are defined for convenience of description, and do not represent that the corresponding components must have corresponding positions or specific structures when used or installed. And therefore should not be considered as limiting the invention.
The structures depicted in fig. 1-9 are examples of the present invention, not all examples of the present invention, and the shapes of the depicted components cannot be limited to the technical solution of the present invention. The utility model provides a novel blast gate structure includes the blast gate frame, installs a plurality of blades in the blast gate frame, still includes micro-gap switch and step motor and pivot. The obvious difference with the prior art is that the utility model discloses an air valve structure is the structure that a plurality of blade motion overlap, motion expansion.
The technical solution of the present invention is further explained below with reference to the embodiment in which the overall shape of the air valve is circular:
novel blast gate, be equipped with a plurality of fan-shaped blades in blast gate frame 1, each fan-shaped blade is installed jointly on same pivot 8 and they are the layering setting, lie in the first fan 2 of being called of the top layer among the fan-shaped blade, it is fixed blade. Located at the lowermost level is the tail fan 1, which is directly driven in rotation by a motor 7. The blades arranged between the first fan 2 and the tail fan 3 are sleeved on the rotating shaft 8 and can freely rotate around the rotating shaft. When the tail fan 3 rotates forwards, the middle blades are sequentially pushed to rotate forwards until all the blades are disturbed below the first blades; when the tail fan 3 is reversed, the other blades are pulled out from under the head fan 2 in turn, so that each blade is unfolded to close the air valve.
The utility model provides a concrete example does: a novel air valve structure comprises an air valve frame 1 and fan-shaped blades, wherein the fan-shaped blades are stacked in the air valve frame 1 and comprise a first fan 2, a tail fan 3, a middle fan b 4 and a middle fan c 5; the circle center position of each fan-shaped blade is fixedly connected with a shaft sleeve; the shaft sleeve of the tail fan 3 is fixedly connected with the bottom end of the rotating shaft 8, and the shaft sleeves of the middle fan b 4, the middle fan c 5 and the head fan 2 are sequentially sleeved on the rotating shaft 8; the upper surface of the left side of the tail fan 8 is provided with a leaf collecting column 9 which extends upwards to the height of the head fan, and the upper surface of the right side is provided with a linkage shifting block 13; the lower surface of the left side of the middle fan b 4 is provided with a linkage shifting plate 10, and the upper surface of the right side is provided with a linkage shifting block 13; similarly, the lower surface of the left side of the middle fan c 5 is provided with a linkage shifting plate 10, and the upper surface of the right side is provided with a linkage shifting block 13; the first fan 2 is fixedly connected with the air valve frame 1, the lower surface of the left side of the first fan 2 is provided with a linkage shifting plate 10, and the lower surface of the right side of the first fan is provided with a limiting column which extends downwards to the height of the tail fan; the linkage shifting block 13 of each fan-shaped blade is positioned at the inner side of the fan blade linkage shifting plate 10 on the upper layer. Namely, the linkage shifting block of the tail fan 3 is inserted inside the middle fan b 4, the linkage shifting block of the middle fan b 4 is inserted inside the middle fan c 5, and the linkage shifting block of the middle fan c 5 is inserted inside the head fan 3.
With the structure, when the tail fan 3 rotates to close the air valve, the linkage shifting block 13 and the connecting shifting plate 10 move mutually; when the tail fan 3 rotates to unfold the air valve, the linkage shifting block 13 and the connection shifting plate 10 move oppositely to be attached, so that the blades are pulled one by one.
Preferably, the interlocking shifting block 13 is semicircular, and the same circumferential position of the interlocking shifting plate and the interlocking shifting block is designed into an arc 13-1 protruding outwards.
The bottom of the rotating shaft is a square column, a limiting arc plate 12 is arranged on the rotating shaft body, a square groove 3-1 is formed in the center of a shaft sleeve of the tail fan 3, the shaft sleeve of the tail fan is sleeved at the bottom of the rotating shaft, and the square groove 3-1 is clamped with the square column.
A limiting rib 15 structure is arranged in the shaft sleeve of the fan-shaped blade, the limiting rib 15 is matched with the limiting arc plate 12, and the length of the limiting rib 15 is set according to the allowed rotation range of the fan. A rib ring for fixing the rotating shaft is arranged in the shaft sleeve of the first fan 2.
Based on the above embodiments of the present invention, the structural drawings are shown in fig. 8 and 9, wherein two fan-shaped middle fans are designed, for convenience of description, the reading is performed by rotating the middle fan at 0 degree in the left side position and counterclockwise, and the limit rib of the middle fan b is a 90-degree rib from 180 degrees to 270 degrees; the limiting rib of the middle fan c is a 180-degree rib ranging from 180 to 0 degrees.
The left side and/or the right side of the first fan and the leaf-collecting column 9 are/is provided with a groove 2-1 at the same circumferential position, and the groove 2-1 is provided with a microswitch 6. The leaf-collecting column rotates and is opened on the microswitch when entering the groove 2-1.
The first fan 2 is also provided with a fixed structure of a motor 7. The motor 7 is fixed on the head fan, and a motor shaft is connected with the rotating shaft 8.
In this embodiment, the tail fan rotates clockwise 90 degrees and overlaps with the middle fan b, the tail fan rotates 180 degrees and overlaps with the middle fan c, the tail fan rotates 270 degrees and overlaps with the head fan, and the rotation is stopped due to the stop block on the right side of the head fan. Then, when the tail fan rotates reversely by 90 degrees, the tail fan drives the shifting block to enter the arc of the connecting shifting plate of the middle fan b and pull out the middle fan b. When the middle fan b rotates 90 degrees, the linkage shifting block of the middle fan b enters the arc-shaped connection shifting plate of the middle fan c to pull out the middle fan c, the tail fan rotates 90 degrees, the leaf-collecting column hits the microswitch at the groove position, and the rotation is stopped.
The baffle 14 is arranged on the outer side of the tail fan blade-collecting column 9, and the height of the baffle 14 is equal to the distance between the first fan 2 and the tail fan 3. The baffle 14 has a dust-proof function.
The periphery of the air valve frame 1 is provided with guide rails 11 matched with the fan-shaped blades of each layer, and the arc-shaped end surfaces of the fan-shaped blades are provided with sliding grooves 16 matched with the guide rails. Each layer of guide rail 11 can be arranged in a whole circle or only in the rotating range of the blade, and the sliding groove 16 is designed in the middle of the end face and is in a groove pattern, or is designed in a staggered pattern at the lower side of the end face.
The structure of above-mentioned four flabellums only does the utility model discloses an embodiment, this structure can also be with separation blade quantity increase, and separation blade quantity is more, and area of ventilation is big more. The blades are not limited to fan-shaped blades, and can be in other shapes, and the blades are arranged according to the shape of the air valve frame.
The air valve has the following operation process:
opening an air valve: the stepping motor starts to rotate clockwise after receiving a signal, the square part of the air valve shaft is inserted into the first fan square groove, when the motor drives the rotating shaft to rotate clockwise (in the forward direction), the first fan rotates along with the rotating shaft, and the leaf-folding column is pushed to the first middle fan after rotating 1 unit to push the first middle fan to rotate along with the rotating shaft. When the leaf collecting column rotates for 2 units, the leaf collecting column can be jacked to the second middle fan to continuously push the second middle fan to rotate along with the second middle fan. And pushing other middle fans to be all positioned below the first fan. The control of the positive rotation step number and the reverse rotation step number of the motor can be controlled according to the step number which is set in advance. The inching shape can be designed to provide signals at the forward rotation end point and the reverse rotation end point.
Closing an air valve: after receiving the signal, the stepping motor starts to rotate anticlockwise (reversely), and when the tail fan rotates for 1 unit, the linkage shifting block enters an arc protruding outwards on the linkage shifting plate of the first middle fan and drives the middle fan to rotate. When rotating 2 units, the linkage shifting block on the first middle fan enters the outward protruding arc of the linkage shifting plate of the second middle fan and drives the second middle fan to rotate. The same third middle fan and the same fourth middle fan are pulled one by one to rotate out from the lower part of the first fan. When the tail fan rotates in place, the leaf-collecting column contacts the microswitch, the motor is powered off, the motor stops working, and the air valve is closed.
Claims (5)
1. The utility model provides a novel blast gate structure is equipped with a plurality of fan-shaped blades in the blast gate frame, and each fan-shaped blade is installed jointly in same pivot, still includes micro-gap switch and step motor and pivot, characterized by: the fan-shaped blades are arranged in layers, and the fan-shaped blade positioned at the uppermost layer is called a first fan and is a fixed blade; the tail fan is positioned at the lowest layer and is directly driven by a motor to rotate; the blades arranged between the first fan and the tail fan are sleeved on the rotating shaft and can freely rotate around the rotating shaft; when the tail fan rotates forwards, the middle blades are sequentially pushed to rotate forwards until all the blades are disturbed below the first blades; when the tail fan rotates reversely, other blades are pulled out from the lower part of the head fan in sequence, and each blade is unfolded to close the air valve.
2. The novel damper structure of claim 1, wherein: each fan-shaped blade is stacked and arranged in the air valve frame, and the circle center position of each fan-shaped blade is fixedly connected with a shaft sleeve; the fan-shaped blades comprise a head fan, a tail fan and a plurality of middle fans; the shaft sleeve of the tail fan is fixedly connected with the bottom end of the rotating shaft; the shaft sleeves of the middle fan and the head fan are sequentially sleeved on the rotating shaft; the upper surface of the left side of the tail fan is provided with a leaf collecting column which extends upwards to the height of the head fan, and the upper surface of the right side of the tail fan is provided with a linkage shifting block; the lower surface of the left side of the middle fan is provided with a linkage shifting plate, and the upper surface of the right side of the middle fan is provided with a linkage shifting block; the first fan is fixedly connected with the air valve frame, the lower surface of the left side of the first fan is provided with a linkage shifting plate, and the lower surface of the right side of the first fan is provided with a limiting column which extends downwards to the height of the tail fan; the linkage shifting block of each fan blade is positioned at the inner side of the fan blade linkage shifting plate on the upper layer.
3. The novel air valve structure as claimed in claim 2, wherein: the linkage shifting block is semicircular, and an arc which protrudes outwards is arranged on the linkage shifting plate and at the same circumferential position of the linkage shifting block.
4. The novel air valve structure as claimed in claim 2, wherein: the bottom of the rotating shaft is a square column, and a limiting arc plate is arranged on a shaft body of the rotating shaft; the shaft sleeve of the tail fan is provided with a central square groove, the shaft sleeve of the tail fan is sleeved at the bottom of the rotating shaft, and the central square groove is clamped with the square column.
5. The novel air valve structure as claimed in claim 2, wherein: and a limiting rib structure is arranged in the shaft sleeve of the middle fan, the limiting rib is matched with the limiting arc plate, and the length of the limiting rib is set according to the allowable rotation range of the middle fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857257.3U CN210716041U (en) | 2019-10-31 | 2019-10-31 | Novel air valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857257.3U CN210716041U (en) | 2019-10-31 | 2019-10-31 | Novel air valve structure |
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| Publication Number | Publication Date |
|---|---|
| CN210716041U true CN210716041U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921857257.3U Active CN210716041U (en) | 2019-10-31 | 2019-10-31 | Novel air valve structure |
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| CN (1) | CN210716041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608293A (en) * | 2019-10-31 | 2019-12-24 | 皓庭(唐山）环境科技有限公司 | Novel air valve structure |
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2019
- 2019-10-31 CN CN201921857257.3U patent/CN210716041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608293A (en) * | 2019-10-31 | 2019-12-24 | 皓庭(唐山）环境科技有限公司 | Novel air valve structure |
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