CN213144654U

CN213144654U - Novel louver type efficient wind catching device

Info

Publication number: CN213144654U
Application number: CN202022104506.0U
Authority: CN
Inventors: 王知优; 魏康康
Original assignee: Bidiay Tianjin Automation Technology Co ltd
Current assignee: Bidiay Tianjin Automation Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-05-07
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a novel louver type high-efficiency wind catching device, which comprises a vertical shaft and at least two blade assemblies, wherein the blade assemblies are uniformly distributed around the vertical shaft along the circumference and radiate along the radial direction; the blade assembly comprises a frame body and a plurality of blades which are sequentially arranged in the frame body along the longitudinal direction, the upper end of each blade is rotatably connected with the frame body, and the rotating axis of each blade transversely extends; the blade is provided with a front surface and a back surface, a first limiting part and a second limiting part corresponding to the blade are arranged in the frame body, the first limiting part is positioned on one side of the back surface, and the second limiting part is positioned on one side of the front surface and close to the upper end of the blade; when the front side faces the wind, the first limiting part can apply blocking force to the blade from the back side to prevent the blade from rotating along the wind; when the back is windward, the blade can rotate downwind, and the second limiting part can apply blocking force to the blade from the front, so that the turning of the blade is limited below the horizontal position. The blade assembly adopts the shutter type structure, reduces the resistance, improves the power generation efficiency, shortens the blade reset time.

Description

Novel louver type efficient wind catching device

Technical Field

The utility model relates to a wind power generation field, in particular to novel high-efficient wind of catching of venetian blind type device.

Background

Chinese patent application No. 2019219659080 discloses a novel high-efficiency fluid kinetic energy capturing device, which comprises a main shaft and blades, wherein the blades can rotate around the main shaft, and the blades are turned in the vertical direction. The device reduces the resistance of the reverse fluid to the blades when rotating, improves the power generation efficiency, and after the blades rotate by a certain angle, the blades can naturally reset and return to the right by gravity, thereby realizing the continuous operation of the device. The device adopts single big blade, and the blade reset time is longer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects existing in the prior art and designing a novel louver type high-efficiency wind catching device.

The novel louver type efficient wind catching device comprises a vertical shaft and at least two blade assemblies, wherein the blade assemblies are uniformly distributed around the vertical shaft along the circumference and radiate along the radial direction;

the blade assembly comprises a frame body and a plurality of blades which are sequentially arranged in the frame body along the longitudinal direction, the upper end of each blade is rotatably connected with the frame body, and the rotating axis of each blade transversely extends;

the blade is provided with a front surface and a back surface, a first limiting part and a second limiting part corresponding to the blade are arranged in the frame body, the first limiting part is positioned on one side of the back surface, and the second limiting part is positioned on one side of the front surface and close to the upper end of the blade;

when the front side faces the wind, the first limiting part can apply blocking force to the blade from the back side to prevent the blade from rotating along the wind;

when the back is windward, the blade can rotate downwind, the second limiting part can apply blocking force to the blade from the front, and the gravity center of the blade after overturning is not higher than the horizontal plane where the rotating axis of the blade is located.

In some embodiments, the frame body comprises a first side edge, a second side edge and a bottom edge, wherein the first side edge, the second side edge and the bottom edge are longitudinally arranged, and the bottom edge connects the lower end of the first side edge and the lower end of the second side edge.

In some embodiments, a rotating shaft is disposed at an upper end of each blade, and two ends of the rotating shaft are rotatably connected to the first side edge and the second side edge respectively.

In some embodiments, the lower end of the upper blade overlaps the connecting shaft of the lower blade, the connecting shaft of the lower blade serves as the first limiting portion corresponding to the upper blade, the lower end of the lowest blade overlaps the bottom edge of the frame, and the bottom edge serves as the first limiting portion of the lowest blade.

In some embodiments, the frame has a plurality of cross bars connecting the first side and the second side, each blade corresponds to one cross bar, and the cross bar serves as a first limiting portion of the corresponding blade.

In some embodiments, the frame has a plurality of cross bars connecting the first side and the second side, the lower end of the lowermost blade overlaps the bottom side of the frame, the bottom side serves as a first position-limiting portion of the lowermost blade, and the cross bars serve as the first position-limiting portions of the other blades.

In some embodiments, the second position-limiting portion is a metal pillar or a metal sheet disposed inside the first side and the second side.

In some embodiments, the second limiting portion is a rod connecting the first side and the second side.

In some embodiments, the blade assemblies are connected to the vertical shaft by links that extend radially from the vertical shaft.

The utility model has the advantages that: when the front face of a certain blade assembly faces the wind, the blades on the blade assembly cannot rotate along the wind due to the blocking of the first limiting part, at the moment, the wind can push the blade assembly to rotate around the vertical shaft, and when the blade assembly rotates to the back face of the blade to face the wind, the blades rotate along with the wind, at the moment, the motion resistance of the blade assembly can be greatly reduced, and the power generation efficiency is improved; the blade assembly adopts a shutter type structure, so that the blade resetting time is shortened; the second limiting part limits the maximum overturning angle of the blade, and the blade is prevented from being too large in overturning angle and being incapable of resetting.

Drawings

Fig. 1 is a perspective view of a novel louver type efficient wind catching device according to an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of the blade assembly of the novel louver-type efficient wind catching device according to an embodiment of the present invention when the blade is facing the wind.

Fig. 3 is a longitudinal sectional view of the blade assembly of the novel louver-type efficient wind catching device according to an embodiment of the present invention when the back of the blade faces the wind.

Fig. 4 is a partial schematic view of a blade assembly of a novel louver-type high-efficiency wind catching device according to another embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of the blade assembly of the novel louvered high efficiency wind trap shown in fig. 4.

Fig. 6 is a partial schematic view of a blade assembly of a novel louver-type efficient wind catching device according to another embodiment of the present invention.

Description of the symbols:

vertical axis 1, blade assembly 2, connecting rod 3, frame 4, blade 5, first side 6, second side 7, bottom 8, top 9, rotating shaft 10, front 11, back 12, second limiting part 13 and cross bar 14

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1, in the present embodiment, the novel louver type efficient wind catching device includes a vertical shaft 1 and at least two blade assemblies 2, wherein the blade assemblies 2 are uniformly distributed around the vertical shaft 1 along a circumference and radiate along a radial direction. The vertical shaft 1 is connected to the blade assembly 2 by a connecting rod 3. In particular, the connecting rods 3 may extend radially from the vertical shaft 1, the blade assembly 2 being fixed at the end of the connecting rods 3 remote from the vertical shaft 1. The blade assemblies 2 are at least two and may be three or four.

With continued reference to fig. 1, the blade assembly 2 includes a frame 4 and a plurality of blades 5 sequentially arranged in the frame 4 along a longitudinal direction, an upper end of each blade 5 is rotatably connected to the frame 4, and a rotation axis of each blade 5 extends in a transverse direction.

The frame 4 has a rectangular structure, and specifically, referring to fig. 1, the frame 4 includes a first side 6 and a second side 7 which are longitudinally disposed, a bottom side 8 connecting a lower end of the first side 6 and a lower end of the second side 7, and a top side 9 connecting an upper end of the first side 6 and an upper end of the second side 7. The upper and lower ends of the frame body 4 are respectively connected with a connecting rod 3.

Referring to fig. 2, a rotating shaft 10 is disposed at an upper end of each blade 5, and two ends of the rotating shaft 10 are rotatably connected to the first side 6 and the second side 7, for example, the rotating shaft 10 and the two sides are connected by shaft holes, and may be connected by a bearing if necessary. Alternatively, the rotating shaft 10 is fixed to the upper end of the blade 5 along the upper edge of the blade 5 by welding, and may also be fastened by using a fastener. Preferably, the rotation axis 10 extends in a radial direction of the vertical axis 1.

Referring to fig. 2 and 3, the blade 5 has a front surface 11 and a back surface 12, the frame 4 has a first position-limiting portion and a second position-limiting portion 13 corresponding to the blade 5, the first position-limiting portion is located on the back surface 12 side, and the second position-limiting portion 13 is located on the front surface 11 side and is close to the upper end of the blade 5. The blade 5 is turned over within a certain angle by the first and second stoppers 13. When wind blows to the front surface 11 of the blade 5, the first limiting part can exert blocking force on the blade 5 from the back surface 12 to prevent the blade 5 from rotating along the wind. When wind blows to the back 12 of the blade 5, the blade 5 can rotate along the wind, the second limiting part 13 can apply blocking force to the blade 5 from the front 11, the gravity center of the turned blade 5 is not higher than the horizontal plane where the rotating axis of the blade 5 is located, and the blade 5 is prevented from being reset by self weight due to too large turning angle.

Specifically, the lower end of the upper blade 5 overlaps the connected shaft 10 of the lower blade 5, the shaft 10 connected to the lower blade 5 serves as a first stopper corresponding to the upper blade 5, the lower end of the lowermost blade 5 overlaps the bottom edge 8 of the frame 4, and the bottom edge 8 serves as a first stopper of the lowermost blade 5. In the embodiment, the rotating shaft 10 is used for limiting the blades 5, so that the mounting structure is simplified.

The second stopper portion 13 is provided on the first side 6 and the second side 7. Specifically, the second stopper 13 protrudes inside the first side 6 and the second side 7. For example, the second limiting portion 13 on the first side 6 is a short metal sheet or a metal column extending from the first side 6 to the inner side of the frame 4; the second limiting portion 13 on the second side 7 is also a metal sheet or a metal column disposed inside the second side 7.

When the front 11 of the blade 5 of a certain blade assembly 2 faces the wind, the blade 5 on the blade assembly 2 cannot rotate along the wind due to the blocking of the first limiting part, at the moment, the wind can push the blade assembly 2 to rotate around the vertical shaft 1, and when the blade assembly 2 rotates to the back 12 of the blade 5 to face the wind, the blade 5 rotates along with the wind, at the moment, the motion resistance of the blade assembly 2 can be greatly reduced, and the power generation efficiency is improved; the blade assemblies 2 adopt a shutter type structure, so that the rotation stroke of a single blade 5 is reduced, and the reset time of each blade 5 is shortened; the second limiting part 13 limits the maximum overturning angle of the blade 5, and prevents the blade 5 from overturning by too much angle and being incapable of resetting.

Example 2

Referring to fig. 4 and 5, in the present embodiment, the frame 4 has a plurality of cross bars 14 connecting the first side 6 and the second side 7, and the cross bars 14 are disposed on the back 12 side of the blade 5.

In some embodiments, each blade 5 is provided with a cross bar 14, and the cross bars 14 serve as first limit parts of the corresponding blade 5.

In some embodiments, the bottom edge 8 of the frame 4 may be directly used as the first limiting portion of the lowermost blade 5, and the corresponding cross bar 14 of the other blades 5 may be used as the corresponding first limiting portion.

Example 3

Referring to fig. 6, in the embodiment, the second limiting portion 13 may also be a rod, which is parallel to the rotating shaft 10 and may be a round rod, a flat rod or other shapes. One end of the rod is connected to the first side 6 and the other end is connected to the second side 7.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The novel louver type efficient wind catching device is characterized by comprising a vertical shaft and at least two blade assemblies, wherein the blade assemblies are uniformly distributed around the vertical shaft along the circumference and radiate along the radial direction;

the blade is provided with a front surface and a back surface, a first limiting part and a second limiting part corresponding to the blade are arranged in the frame, the first limiting part is positioned on one side of the back surface, and the second limiting part is positioned on one side of the front surface and is close to the upper end of the blade;

when the front side faces the wind, the first limiting part can exert blocking force on the blade from the back side to prevent the blade from rotating along the wind;

when the back faces windward, the blades can rotate downwind, and the second limiting parts can apply blocking force to the blades from the front faces, so that the gravity center of the overturned blades is not higher than the horizontal plane where the rotating axes of the blades are located.

2. The novel louver type efficient wind catching device as claimed in claim 1, wherein the frame body comprises a first side, a second side and a bottom edge connecting the lower end of the first side and the lower end of the second side, wherein the first side and the second side are arranged longitudinally.

3. The novel louver type efficient wind catching device as claimed in claim 2, wherein a rotating shaft is provided at the upper end of each of the blades, and both ends of the rotating shaft are rotatably connected to the first side and the second side, respectively.

4. The novel louver type efficient wind catching device as claimed in claim 3, wherein the lower end of the upper blade overlaps with the rotating shaft connected with the lower blade, the rotating shaft connected with the lower blade is used as the first limiting portion corresponding to the upper blade, the lower end of the lowest blade overlaps with the bottom edge of the frame, and the bottom edge is used as the first limiting portion of the lowest blade.

5. The novel louver type efficient wind catching device as claimed in claim 2, wherein a plurality of cross bars connecting the first side and the second side are provided in the frame, each blade corresponds to one cross bar, and the cross bar is used as a first limiting part of the corresponding blade.

6. The novel louver type efficient wind catching device as claimed in claim 2, wherein the frame body is internally provided with a plurality of cross bars connecting the first side edge and the second side edge, the lower end of the lowest blade is overlapped with the bottom edge of the frame body, the bottom edge is used as the first limiting part of the lowest blade, and other blades are used as the first limiting part by the cross bars.

7. The novel louver type efficient wind catching device as claimed in claim 2, wherein the second limiting part is a metal column or a metal sheet arranged inside the first side and the second side.

8. The novel louver type efficient wind catching device as claimed in claim 2, wherein the second limiting portion is a rod connecting the first side and the second side.

9. The novel louvered high efficiency wind capture device of claim 1, wherein said blade assemblies are connected to said vertical shaft by links extending radially from said vertical shaft.