TWM595163U - Blade device - Google Patents

Abstract

A blade device can be driven by wind force to rotate in a running direction, and includes a rotating shaft, and a plurality of blade modules connected to the rotating shaft. Each blade module includes a grid-type blade provided with a plurality of first spaces, and a plurality of opening and closing units corresponding to the first spaces. Each opening and closing unit has a pivot and two opening and closing blades pivotally connected to the pivot. Each opening and closing unit can be switched between a wind-shielding state and a ventilation state. During the wind-shielding state, the opening and closing blades abut against the grid-type blades and cooperate to cover the respective first spaces ; In the wind-permeable state, the opening and closing blades swing close to each other to make each of the first spaces permeable to wind. Through the cooperation of the grid-type blade and the opening and closing unit, the reverse wind resistance can be reduced, and the efficiency of the wind driving the blade device can be improved.

Description

Blade device

The invention relates to a blade device, in particular to a blade device driven by wind power.

Wind power generation is a power generation method that uses mechanical wind to drive mechanical components to rotate and convert rotational kinetic energy into electrical energy. Compared with the use of coal-fired and petroleum-based thermal power generation, it causes less pollution to the environment. In addition to the size of the wind at the installation site, how to effectively guide and collect the wind so that the blades are actually driven by the wind to rotate, this problem has been improved by the industry.

Referring to FIG. 1, an existing wind blade device 9 can be driven by a wind force 8, and its structure mainly includes a horizontally extending rotating shaft 91, and a plurality of blades 92 extending radially outwardly from the rotating shaft 91. The blades 92 are long plate-shaped structures with complete surfaces and no holes. Although the downwind blades 92 located above the rotating shaft 91 can drive the rotating shaft 91 to rotate in a direction of rotation 93 along with the wind force 8, they are located at The blades 92 in the opposite wind direction under the rotating shaft 91 receive the wind force 8 in the same direction but will generate a torsional force on the rotating shaft 91 in the opposite direction, reducing the efficiency of the blades to drive the rotating shaft 91 to rotate.

The purpose of the present invention is to provide a blade device that can overcome at least one disadvantage of the prior art.

Therefore, the novel blade device can be driven by the wind to rotate in a direction of operation, and includes a rotating shaft and several blade modules. The blade modules are connected to the rotating shaft and are angularly spaced from each other. Each blade module includes a grid-type blade connected to the rotating shaft and provided with a plurality of first spaces arranged vertically and horizontally, and a plurality of grid-type blades mounted on the grid-type blade And corresponding to the opening and closing units respectively arranged in the first spaces, each opening and closing unit can openably cover the corresponding first space, and has a pivot connected to the grid-type blade, and two pieces are pivotally connected Opening blades extending outwards from the pivot axis and away from the direction of operation; each opening and closing unit can be switched between a wind-shielding state and a wind-permeable state. During the wind-shielding state, the opening and closing blades lean against the grid The grid-type blades cooperate to cover the respective first spaces; in the wind-permeable state, the opening and closing blades swing close to each other to make the respective first spaces permeable to wind.

The effect of the present invention lies in: the grid-shaped blades have the first spaces, and cooperate with the opening and closing units to openly cover the corresponding structural design of the first spaces. When the blade modules are blown by the wind, the opening and closing units located in the forward blade module will cover the corresponding first spaces, thereby driving the rotation shaft to rotate, which is located in the reverse direction and cannot effectively drive the rotation shaft The opening and closing units of the rotating blade module will open the corresponding first spaces to reduce the reverse wind resistance, thereby increasing the efficiency of the wind driving the blade device to rotate.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

Referring to FIGS. 2, 3, and 4, a first embodiment of the novel blade device can be rotated by a wind force F in an operating direction T. As shown in FIG. 4, the wind force F is from right to left, and the operating direction T is Rotate counterclockwise. The blade device includes a horizontally and horizontally extending rotating shaft 1, two blade modules 2 rotatably sleeved on the rotating shaft 1, and a number of spaced along the axial direction of the rotating shaft 1 are arranged around the rotating shaft and connected to The bracket 3 between the blade modules 2.

The blade modules 2 are connected to the rotating shaft 1 and are angularly spaced from each other. Each blade module 2 includes a grid blade 21 connected to the rotating shaft 1 and a plurality of opening and closing units mounted on the grid blade 21 22. Several swing blades 23 mounted on the grid-type blades 21, and a fixed blade 24 mounted on the grid-type blades 21.

Each grid-type blade 21 extends radially outward from the rotating shaft 1 toward the back to the operating direction T, and has a plurality of first grids extending axially along the rotating shaft 1 and arranged radially spaced along the rotating shaft 1 Rods 211, and a plurality of second grid rods 212 extending radially along the axis of rotation 1 and spaced apart along the axis of the axis of rotation 1, the first grid rods 211 and the second grid rods 212 together define a number of vertical and horizontal intervals The first space 201 and the second space 202 are arranged. The first spaces 201 are arranged on the side of the grid blade 21 away from the rotating shaft 1, and the second spaces 202 are arranged on the side of the grid blade 21 near the rotating shaft 1. The cross-sectional area of the first spaces 201 gradually decreases as they move away from the rotating shaft 1, that is, the first spaces 201 on the side farthest from the rotating shaft 1 are arranged along the axis of the rotating shaft 1 The number is the largest, and the number of the arrangement decreases as the shaft 1 approaches.

The opening and closing units 22 are openably covering the first spaces 201, and each opening and closing unit 22 has an extension extending in the radial direction of the rotating shaft 1 and being bridged and fixed between two adjacent first grid bars 211 The pivot 221 and two opening and closing blades 222 pivotally connected to the pivot 221 and extending outwardly away from the running direction T. Each opening and closing blade 222 has a ring-shaped outer frame 223 pivotally connected to the corresponding pivot 221, and a wind-shielding blade group 224 fixed on the outer frame 223 and impervious to wind. The length and width dimensions of the opening and closing blades 222 only need to cover the size of the corresponding first spaces 201, because the cross-sectional area of the first spaces 201 away from the rotating shaft 1 is larger than that near the rotating shaft 1 Since the cross-sectional area of the first space 201 is small, the length and width dimensions of the opening and closing blades 222 disposed away from the rotating shaft 1 are smaller than those of the opening and closing blades 222 near the rotating shaft 1.

With reference to FIG. 5, each windshield sheet group 224 has a plurality of windshield sheets 225 arranged in a stack, and the more the windshield sheets 225 of the windshield sheet groups 224 farther away from the rotating shaft 1, the greater the number. Each windshield sheet 225 is a flexible sheet made of, for example, canvas, graphene, or other polymer materials, and has a body 226, and a plurality of reinforcing ribs 227 extending longitudinally and spaced apart from the body 226 . The thickness of each reinforcing rib 227 is greater than that of the respective sheet body 226, and the extending directions of the reinforcing ribs 226 of two adjacent wind shields 225 are staggered with each other, thereby forming a structure that is less likely to be damaged by wind.

Each opening and closing unit 22 can be switched between a wind-shielding state and a wind-permeable state by means of the structural design of the pivot shaft 221 and the opening-and-closing blades 222. Against the grid-type blades 21 and cooperate to cover the respective first spaces 201; in the air-permeable state, the opening and closing blades 222 swing close to each other so that the respective first spaces 201 can Breath.

The swinging blades 23 are swingably hung on the first grid bars 211 and correspond to the second spaces 202 respectively. Each oscillating blade 23 can be made of the same material as the wind-shielding blades 225, and can oscillate against the grid-type blade 21 to shield the closed position of the second space 202 and an oscillating away The grille blade 21 swings between the open positions where the second space 202 can be ventilated.

The fixed blade 24 of each blade module 2 is installed at the junction of the first space 201 and the second space 202 of the corresponding grid blade 21, and extends along the axial direction of the rotating shaft 1 Extending from the grid-like blade 21 toward the back toward the operating direction T and extending outwardly in an arc.

Taking the blade module 2 at the top of FIG. 4 as an example, the brackets 3 surround the rotating shaft 1 and are connected in a quadrilateral shape and connected to the second grid bars 212, so that the swing blades 23 adjacent to the brackets 3 are originally When it is in the closed position, it cannot lean against the corresponding grid blade 21, but against the brackets 3, forming a slope extending from the outer periphery of the brackets 3 toward the grid blades 21 .

When the blade device of this embodiment is used, it can be pivoted to the rotating shaft 1 by a erection device (not shown) and raised for use.

When driven by the wind force F, the blade module 2 located above the rotating shaft 1 is at a position where the wind force F is downwind to the running direction T, and the opening and closing blades 222 are blown by the wind force F to lean against Against the grid-type blade 21, the opening and closing units 22 are switched to the wind-shielding state covering the first spaces 201, and the swinging blades 23 are also abutted by the wind F At the closed position covering the second spaces 202 of the grid-type blades 21, the opening and closing blades 222 and the swinging blades 23 cooperate to make the blade module 2 airtight. The swing blades 23 closest to the rotating shaft 1 are against the brackets 3 and form the inclined surface, so that the wind force F near the rotating shaft 1 is guided by the inclined surface to act upward on the other swing blades 23. The fixed wind piece 24 is used to prevent the wind force F away from the rotating shaft 1 from flowing downward toward the rotating shaft 1, and keep the wind force F away from the rotating shaft 1 acting on the opening and closing blades 222.

At the same time, the blade module 2 located below the rotating shaft 1 is in a position where the wind force F is against the running direction T, and the opening and closing blades 222 are blown by the wind force F to swing close to each other To switch the opening and closing unit 22 to the ventilation state where the first space 201 can be ventilated. At the same time, the oscillating blades 23 are also oscillated away from the grid-type blades 21 due to being blown by the wind force F, and are in the opening position to open the second spaces 202, the opening and closing units 22 and the The swinging blades 23 cooperate with each other to make the blade module 2 air-permeable, thereby reducing the force exerted by the wind force F on the blade module 2 and causing a force opposite to the operating direction T, thereby improving the collection of the blade device The efficiency of the wind force F.

In particular, the number of stacked wind shields 225 of each wind shield group 224 can be as long as it can withstand the blow of the wind F without breaking. According to the design, the blade modules 2 are usually away from the rotating shaft 1 The farther the radial distance is, the greater the wind force F is. Therefore, the more the number of the windshield plates 225 of the windshield plate groups 224 that are farther away from the rotating shaft 1, the stronger the structural strength. Moreover, the shape of the brackets 3 around the rotating shaft 1 is not limited to a quadrilateral, but may be circularly surrounding the rotating shaft 1, or correspondingly designed into a polygon according to the number of the blade modules 2, as long as it can provide The oscillating blades 23 adjacent to the rotating shaft 1 only need to be able to abut and form the inclined surface in the closed position.

It is added that the farther the radial distance of the blade modules 2 from the rotating shaft 1 is, the greater the wind force F will be. Therefore, the size design of the opening and closing units 22 will be further away from the rotating shaft 1 Smaller, reducing the wind-receiving area of the opening and closing blades 222 and reducing the probability of damage, and designing the size of the opening and closing units 22 close to the rotating shaft 1 to be larger, reducing the number of the opening and closing units 22, and simplifying The overall design of the blade device. If the opening and closing blades 222 are sufficient to withstand the blowing of the wind force F without breaking, the size of the opening and closing units 22 may not be designed.

6 and 7, a second embodiment of the novel blade device differs from the first embodiment in the structure of the opening and closing unit 22.

Each opening-and-closing unit 22 has a pivot 221 bridging and fixed between two adjacent first grid bars 211, and two opening-and-closing blades 222 pivotally connected to the pivot 221 and extending outwardly away from the running direction T, And two guide frames 25 located at both ends of the pivot 221 respectively. Each guide frame 25 is formed by one of the second grid rods 212, curved in a direction opposite to the running direction T and extending along the extension direction of the first grid rod 211 to the adjacent second grid rod 212, and has two The segments are respectively connected with the corresponding guide segments 251 of the second grid bars 212, and a limiting segment 252 that extends from one of the guide segments 251 to the other guide segment 251 and has an outer diameter larger than the guide segments 251. And in the limiting sections 252 of the guide frames 25 of each opening and closing unit 22, the extension length of the limiting section 252 near the rotating shaft 1 (not shown) is farther than the limiting section away from the rotating shaft 1 The extension length of 252 is long.

Each opening and closing blade 222 has a windshield plate group 224 with one side pivotally connected to the respective pivot shaft 221, and two windshield plate groups 224 respectively mounted on the windshield plate group 224 opposite to a The movable rings 228 of the guide frames 25 are movably installed on the sides, and a side flexible cord 229 is connected to the wind deflector group 224 except for the side connected to the pivot 221. The inner diameter of each movable ring 228 is smaller than the outer diameter of the limiting section 252, and is limited to move between the corresponding limiting section 252 and the corresponding second bar 212 along the respective guiding section 251. The edge strips 229 have a larger thickness than the windshield 224, and are used to reinforce the planar structure of the windshield 224.

Each opening and closing blade 222 moves between the corresponding second bar 212 and the corresponding limiting sections 252 along the corresponding guiding sections 251, so that each opening and closing unit 22 can be in the windshield state (See Fig. 6) Switch with the ventilation state (see Fig. 7). And in the wind-permeable state, the opening and closing blades 222 are close to each other, but are restricted by the limiting sections 252 and cannot fully abut, and because the extension lengths of the limiting sections 252 are different, the opening and closing blades 222 are close to each other. When the blade 222 is in the wind-permeable state, it forms an opening 26 that is narrower as it is further away from the rotating shaft 1. When the opening and closing blades 222 in the wind-permeable state are rotated to a position along the wind direction, the wind force F can pass through the opening 26 to switch the opening and closing unit 22 to the wind-shielding state. And because the wind force closer to the rotating shaft 1 is relatively weak, the closer the opening 26 is to the rotating shaft 1, the larger the opening range design, the more weak wind force F can be collected from the opening 26, so that The opening and closing blade 222 moves more smoothly along the guide frames 25.

It should be particularly noted that each opening and closing blade 222 is not limited to being disposed on the guide frames 25 by using the movable rings 228, and two guide frames 25 may be directly set up on the opening and closing blades 222. The holes penetrated by the guide segments 251 can also produce the function of moving the opening and closing blade 222 along the guide frames 25.

In addition, it is added that in implementation, the opening and closing blades 222 of each opening and closing unit 22 may be two windshield blade groups 224 pivoted on the pivot shaft 221 respectively, or may be a windshield blade group 224, the middle part of the windshield plate group 224 is fixed to the pivot 221, so that the left and right sides outside the middle part of the windshield plate group 224 can pivot relative to the pivot shaft 221, and the opening can also be achieved The closing unit 22 can switch between the wind-shielding state and the wind-permeable state.

In summary, the function of the novel blade device is that when the blade module 2 rotates to a position that can be rotated in the operating direction T by the wind force F, the opening and closing units 22 will switch to the gear The wind state effectively captures the wind force F, so that the entire blade device rotates, and when the rotation is affected by the wind force F to produce a position opposite to the direction of operation T, the opening and closing unit 22 will switch to the wind-permeable state to reduce the influence of the wind force F and improve the efficiency of the blade device being driven by the wind force F. Therefore, the purpose of the present invention can indeed be achieved.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

1: shaft 2: Blade module 201: the first space 202: second space 21: grille blade 211: The first grid 212: Second fence 22: open and close unit 221: Pivot 222: open and close leaves 223: Outer frame 224: Windshield set 225: Windshield 226: piece body 227: Reinforcement 228: Activity ring 229: side strip soft rope 23: Swing blade 24: Gufeng tablets 25: Guide frame 251: Guide segment 252: limit segment 26: opening 3: bracket F: Wind T: running direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a side view of a conventional wind blade device; 2 is an incomplete perspective view of the first embodiment of the novel blade device; FIG. 3 is an incomplete perspective view of the first embodiment; 4 is a cross-sectional view of the first embodiment; FIG. 5 is an exploded perspective view of a windshield set of the first embodiment 6 is an incomplete perspective view of a second embodiment of the novel blade device of the present invention, illustrating an opening and closing unit in a windshield state; and FIG. 7 is an incomplete perspective view of the second embodiment, illustrating that the opening and closing unit is in a ventilation state.

1: shaft

2: Blade module

201: the first space

202: second space

21: grille blade

211: The first grid

212: Second fence

22: open and close unit

221: Pivot

222: open and close leaves

23: Swing blade

24: Gufeng tablets

3: bracket

F: Wind

T: running direction

Claims (10)

A blade device that can be driven by wind to rotate in a direction of operation and includes: A shaft; and Several blade modules are connected to the rotating shaft and are angularly spaced from each other. Each blade module includes a grid-type blade connected to the rotating shaft and provided with a plurality of first spaces arranged vertically and horizontally, and a plurality of grid-type blades installed on the grid-type The blades respectively correspond to the opening and closing units provided in the first spaces, and each opening and closing unit can openably cover the corresponding first space, and has a pivot connected to the grid-type blade, and two pieces of pivotal connection Opening and closing blades extending outwards on the pivot and away from the direction of operation; each opening and closing unit can be switched between a wind-shielding state and a wind-permeable state, and in the wind-shielding state, the opening and closing blades abut against the The grid-type blades cooperate to cover the respective first spaces; in the ventilation state, the opening and closing blades swing close to each other to make the individual first spaces permeable to wind. The blade device according to claim 1, wherein the rotating shaft extends horizontally and laterally, and each grid-type blade has a plurality of first grids arranged at intervals in the radial direction of the rotating shaft and extending in the axial direction of the rotating shaft Rods, and a plurality of second grid rods arranged at intervals in the axial direction of the rotating shaft and extending in the radial direction of the rotating shaft, the first grid rods and the second grid rods jointly define the first spaces Each pivot axis extends along the radial direction of the rotation axis and is fixed across two adjacent first grid bars. The blade device according to claim 1, wherein the cross-sectional area of the first spaces gradually decreases away from the rotation axis, and the length and width of each opening and closing blade are different from the cross-sectional area of the first space Adjust accordingly. The blade device according to claim 1, wherein each of the opening and closing blades has an outer frame pivotally connected to the pivot shaft, and a windproof sheet group fixed on the outer frame and impervious to wind. The blade device according to claim 4, wherein each wind deflector group has a plurality of wind deflectors arranged in a stack, and the farther the wind deflector groups of the wind deflector group from the rotating shaft, the greater the number of wind deflectors. The windshield sheet has a plurality of reinforcing ribs extending in the longitudinal direction and arranged at intervals, and the extending directions of the reinforcing ribs of two adjacent windshield sheets are staggered with each other. The blade device according to claim 1, wherein each grid-type blade is further provided with a plurality of second spaces, and each blade module further includes a plurality of swingably-hangingly arranged on the grid-type blade and respectively corresponding to Waiting for the swinging blades of the second space, each swinging blade can lean against the grid-type blades in a swing to shield the closed position of the second space, and swing away from the grid-type blades to make the respective first Move between the open positions where the two spaces can be ventilated. The blade device according to claim 1, wherein each blade module further includes a fixed wind piece extending outwardly from the grid-type blade toward the running direction. The blade device according to claim 1, wherein each opening and closing unit further has two guide frames connected to the grid-type blades and respectively located at two ends of the pivot shaft, and one side of each opening and closing blade is pivotally connected to each The pivot shaft is connected to the guide frames movably along the guide frames on the side opposite to the pivot shaft. The blade device according to claim 8, wherein each guide frame has two guide sections for connecting the opening and closing blades of the respective opening and closing unit and guiding the moving direction of the opening and closing blades, and a One of the guide sections extends to the limit section of the other guide section. When each opening and closing unit is switched between the windshield state and the ventilation state, each opening and closing blade is located between the corresponding grid blade and the corresponding Between equal limit sections, move along the corresponding guide sections. The blade device according to claim 9, wherein, in the limit sections of the guide frames of each opening and closing unit, the extension length of the limit section near the rotation axis is longer than the limit section away from the rotation axis The extension length is long.

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