CN212317809U - Movable window vane for building window - Google Patents

Abstract

The utility model discloses a movable louver for building window, including first acanthus leaf and second acanthus leaf, one side of first acanthus leaf links together and contained angle between them is adjustable with the form of hinge with one side of second acanthus leaf. When a plurality of the utility model discloses a when the casement was arranged into one row and is installed in the window that the applicant designed, just can change the state of window when the contained angle between first lamina and the second lamina changes, made the window can be in ventilative airtight, ventilative ventilation between the conversion to relative current window, increased the ventilative airtight function of window, promoted the functional of window.

Description

Movable window vane for building window

Technical Field

The utility model relates to a window field especially relates to a movable casement for building window.

Background

Although a window is born for hundreds of thousands of years, the window hardly has more functions besides basic functions, namely, the window on the market at present has the following functions: the lighting function has the functions of ventilation and air permeability when the lamp is opened, and has the functions of wind shielding, rain shielding, sound insulation and the like when the lamp is closed. These functions are possessed when the window comes out, and through hundreds of years of development, the window is greatly changed in material, structure, sound insulation and the like, but is not added with other functions besides the basic functions. For example, when the existing window is opened, outdoor wind can be blown into the room, and indoor air can flow out of the room, so that the effects of ventilation and air permeation are achieved. However, in some cases, we want the effect: the window can block outdoor wind and blow in indoorly, can guarantee simultaneously again indoorly, the gaseous mutual flow of outdoor low speed to guarantee the gas permeability in room, for example when outdoor wind is great, the window if can block outdoor wind and blow into indoorly, can guarantee simultaneously again that indoor gas can flow to outdoor and the outdoor low speed gas can flow to indoorly, can not only guarantee the mobility of indoor outer air like this, can also avoid outdoor strong wind to cause the influence to indoorly. Based on this, the applicant hopes to improve the existing window to provide a new function, namely, the function of increasing air permeability and wind tightness.

Description of the drawings: the ventilation means that indoor and outdoor low-speed gases can flow through each other, that is, the indoor gas can normally flow to the outdoor and the outdoor gas can normally flow to the indoor under the condition of no wind pressure; the ventilation means that outdoor wind can be smoothly blown into a room, namely outdoor wind can be blown into the room without speed reduction, and the ventilation means that outdoor wind cannot be smoothly blown into the room, so that the wind speed is greatly reduced even if the wind enters the room, and even almost no wind speed exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the movable window vane for the building window can be matched with other structures of the window to realize the improvement of the window, so that the window has the functions of ventilation and wind tightness.

In order to solve the technical problem, the utility model provides a movable louver for a building window, which comprises a first louver and a second louver, wherein one side of the first louver is connected with one side of the second louver in a hinge mode, and the included angle between the first louver and the second louver is adjustable;

the first blade plate is positioned on the connecting side of the first blade plate, the top of the first blade plate is provided with a first connector, the bottom of the first blade plate is provided with a second connector, and an inwards concave abdicating groove is formed between the first connector and the second connector; the first connector is provided with a through hole penetrating through the first connector, one end of the second connector facing the abdicating groove is provided with a blind hole, and the other end of the second connector is fixed with a first round rod; the first notch groove is formed in the top of the second blade plate and used for avoiding the first connector, the second notch groove is formed in the bottom of the second blade plate and used for avoiding the second connector, the embedding part embedded into the avoiding groove is arranged between the first notch groove and the second notch groove, the second round rod is fixed at the first notch groove in the top of the embedding part, and the third round rod is fixed at the second notch groove in the bottom of the embedding part; and the second round bar passes through the first connector and stretches out to the outside of first connector by the through-hole, the third round bar by the blind hole insert to the second connector in.

Furthermore, the first blade plate and the second blade plate are both made of transparent materials.

Furthermore, the first blade plate and the second blade plate are both of strip-shaped flat plate structures.

Further, the thickness of the first blade plate and the thickness of the second blade plate are not more than 5 mm.

Further, the thickness of each of the first blade plate and the second blade plate is 2 mm.

The utility model has the advantages that: when a plurality of window leaves of the utility model are arranged in a row and installed in a window designed by the applicant, the state of the window can be changed when the included angle between the first leaf plate and the second leaf plate is changed, so that the window can be switched among three gears of air-tight and air-tight, air-tight and air-permeable; compared with the existing window, the ventilating and windproof function of the window is added, and the functionality of the window is improved.

Drawings

FIG. 1 is a top view of a cross-section of a multi-functional window in an embodiment, where α has a value α 1;

FIG. 2 is a top view of a cross-section of the multi-functional window of the embodiment, where α has a value α 2;

FIG. 3 is a top view of a cross-section of the multi-functional window of the embodiment, where α has a value α 3;

FIG. 4 is a schematic view of the relationship of the drive member to the first vane;

FIG. 5 is a schematic view of FIG. 4 with parts omitted;

FIG. 6 is a schematic view of a first vane configuration;

FIG. 7 is a schematic diagram of FIG. 6, taken apart;

FIG. 8 illustrates a configuration in which the first connector is detachably connected to the first vane;

FIG. 9 is a schematic structural view of a second vane;

FIG. 10 is a schematic view of the first sash and the second sash being secured together in an overlying relationship;

reference numerals: 1-a first window, 11-a first window frame, 12-a first louver, 13-a driving part, 111-a top plate of the first window frame, 112-a bottom plate of the first window frame, 113-a left side plate of the first window frame, 114-a right side plate of the first window frame, 115-a first hole, 121-a first louver, 122-a second louver, 123-a sealing strip, 131-a first driving assembly, 132-a second driving assembly, 141-a first mounting plate, 142-a second mounting plate, 121 a-a first connector, 121 b-a second connector, 121 c-an abdicating groove, 121 d-a first circular rod, 121 f-a first wedge-shaped rib, 122 a-a first notch, 122 b-a second notch, 122 c-an embedding part, 122 d-a second circular rod, 122 e-a third circular rod, 122 f-a second wedge-shaped rib, 131 a-a first motor, 131 b-a first driving wheel, 131 c-a first driven wheel, 131 d-a first synchronous belt, 132 a-a second motor, 132 b-a second driving wheel, 132 c-a second driven wheel, 132 d-a second synchronous belt, 121a 1-a through hole and 121b 1-a blind hole;

2-a second window, 21-a second window frame, 22-a second window leaf, 23-a grid plate, 211-a top plate of the second window frame, 212-a bottom plate of the second window frame, 213-a left side plate of the second window frame, 214-a right side plate of the second window frame, 221-a third leaf plate, 222-a fourth leaf plate, 223-a fixed shaft, 231-a thin plate, 232-a fixed rod;

alpha-the included angle between the first blade plate and the second blade plate towards one side of the second window body;

the beta is the included angle between the third blade plate and the fourth blade plate towards one side of the first window body.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.

The applicant designs a multifunctional window, the movable window leaves of the present invention belong to a part of the multifunctional window, and in order to facilitate understanding of the functions and effects of the movable window leaves in the whole multifunctional window, the applicant directly describes the whole multifunctional window in the following embodiments, and does not list the movable window leaves alone.

Description of the drawings: since the multifunctional window includes two windows, both of which have a louver, for the convenience of distinguishing, in the following embodiments, the movable louver is named as a first louver with reference number 12, and the other louver is named as a second louver with reference number 22.

Example (b):

as shown in fig. 1 to 10, the present embodiment provides a multi-functional window for green buildings, which includes a first window 1 and a second window 2.

The first window 1 comprises a first window frame 11, a plurality of first window vanes 12 and a driving component 13; the first window frame 11 is a rectangular frame, as shown in fig. 10; the first vanes 12 are arranged in a row at equal intervals and vertically installed in the frame body of the first window frame 11, each first vane 12 includes a first vane 121 and a second vane 122, one side of the first vane 121 and one side of the second vane 122 are connected together in a hinge manner, and an included angle between the first vane 121 and the second vane is adjustable, as shown in fig. 1 to 3; the driving member 13 is used for adjusting the opening and closing degree of the first vane 12, that is, for driving the first vane 121 and the second vane 122 to rotate so as to adjust the included angle therebetween.

The second window 2 comprises a second window frame 21 and a plurality of second window vanes 22; the second window frame 21 is also a rectangular frame, as shown in fig. 10; the second louvers 22 are also arranged in a row at equal intervals and are all vertically installed in the frame body of the second window frame 21, the second louvers 22 include a third louver 221 and a fourth louver 222, the third louver 221 and the fourth louver 222 are fixed together in a V shape, and an included angle between the third louver 221 and the fourth louver 222 is fixed and is not adjustable, as shown in fig. 1 to 3.

Wherein, the first window frame 11 and the second window frame 21 are fixed together in an overlapping way, and the shapes of the inner frames of the two are consistent and completely overlapped (as shown in figure 10); the number of second vanes 22 is one more than the number of first vanes 12, each first vane 12 being arranged offset to the side of the gap between each second vane 22 (as shown in fig. 1-3); the first vane 121 of each first vane 12 does not interfere with the second vane 122 of the adjacent first vane 12 during rotation.

Under the adjustment of the driving component 13, an included angle α between the first vane 121 and the second vane 122 towards one side of the second window 2 is at least divided into three gears, which are a first gear, a second gear and a third gear; in the first gear, the included angle α has a value α 1, where α 1 is not greater than 70 °, and at this time, each first vane 121 abuts against the fourth vane 222 of one adjacent second vane 22, and each second vane 122 abuts against the third vane 221 of another adjacent second vane 22, as shown in fig. 1; in the second gear, the included angle α has a value α 2, and α 2 is between 70 ° and 110 °, in which case, there is a gap between each first vane 121 and the fourth vane 222 of one adjacent second vane 22, and there is a gap between each second vane 122 and the third vane 221 of another adjacent second vane 22, as shown in fig. 2; in the third gear position, the included angle α has a value α 3, and α 3 is not smaller than 260 °, as shown in fig. 3.

In the above technical solution, the four blades 121, 122, 221, and 222 are all strip-shaped flat plate structures, and are all made of transparent materials (for example, made of transparent plastic materials) to ensure the light transmittance of the window, and the thickness is not greater than 5mm, preferably 2 mm; when the value of the included angle α is α 2, the width of the gap between the first louver 121 and the fourth louver 222 is between 3mm and 10mm, and similarly, the width of the gap between the second louver 122 and the third louver 221 is between 3mm and 10mm, and if the gap is too small, the normal flow of the indoor and outdoor air is affected, and if the gap is too large, the wind shielding effect may be poor, so that the gap is limited to between 3mm and 10mm, preferably 5 mm.

Preferably:

as shown in fig. 7, the first blade 121 is located at the connecting side of the first blade 121, a first connector 121a is arranged at the top of the first blade 121, a second connector 121b is arranged at the bottom of the first blade 121, and an indent receding groove 121c is formed between the first connector 121a and the second connector 121 b; the first connector 121a is provided with a through hole 121a1 penetrating therethrough, one end of the second connector 121b facing the receding groove 121c is provided with a blind hole 121b1, and the other end is fixed with a first round bar 121 d.

As shown in fig. 7, a first notch 122a that avoids the first connection head 121a is provided at the top of the second blade 122, a second notch 122b that avoids the second connection head 121b is provided at the bottom, a fitting portion 122c that fits into the avoiding groove 121c is provided between the first notch 122a and the second notch 122b, a second round bar 122d is fixed to the first notch 122a at the top of the fitting portion 122c, and a third round bar 122e is fixed to the second notch 122b at the bottom of the fitting portion 122 c.

As shown in fig. 6, the second round bar 122d passes through the first connector 121a from the through hole 121a1 and extends out of the first connector 121a, and the third round bar 122e is inserted into the second connector 121b from the blind hole 121b 1. Moreover, there is a gap between the second round rod 122d and the through hole 121a1, and a gap between the third round rod 122e and the blind hole 121b1, so as to ensure that the first blade 121 and the second blade 122 can rotate freely.

The driving part 13 includes a first driving assembly 131 and a second driving assembly 132, wherein the first driving assembly 131 drives the first vane 121 to rotate through the first round rod 121d, and the second driving assembly 132 drives the second vane 122 to rotate through the second round rod 122 d.

Further:

as shown in fig. 4, the first driving assembly 131 includes a first motor 131a, a first driving pulley 131b, a plurality of first driven pulleys 131c, and a first timing belt 131 d; the first motor 131a is fixed to an outer side of the first sash 11, the first driving pulley 131b is mounted on an output shaft of the first motor 131a, the first driven pulleys 131c are respectively mounted on the first round bars 121d, the first driven pulleys 131c and the first driving pulley 131b are in a same horizontal plane, and the first synchronous belt 131d is wound around the first driving pulley 131b and the first driven pulleys 131c and is used for transmitting power of the first driving pulley 131b to the first driven pulleys 131c to drive the first driven pulleys 131c to synchronously rotate.

As shown in fig. 4, the second driving assembly 132 includes a second motor 132a, a second driving wheel 132b, a plurality of second driven wheels 132c, and a second timing belt 132 d; the second motor 132a is also fixed to the outer side of the first sash 11, the second driving pulley 132b is mounted on an output shaft of the second motor 132a, the second driven pulleys 132c are respectively mounted on the second round bars 122d, the second driven pulleys 132c and the second driving pulley 132b are in the same horizontal plane, and the second timing belt 132d is wound around the second driving pulley 132b and the second driven pulleys 132c and is used for transmitting the power of the second driving pulley 132b to the second driven pulleys 132c to drive the second driven pulleys 132c to rotate synchronously.

Therefore, when the first motor 131a works, the first driving wheel 131b is driven to rotate, and the rotation of the first driving wheel 131b drives each first driven wheel 131c to rotate synchronously through the first synchronous belt 131d, and since each first driven wheel 131c is installed on the corresponding first round rod 121d, the rotation of the first driven wheel 131c drives each first round rod 121d to rotate synchronously, so as to drive all the first blades 121 to rotate synchronously; similarly, when the second motor 132a is operated, all the second blades 122 will rotate synchronously; therefore, as long as the output angles of the two motors 131a and 132a are controlled each time, the included angle α between the first vane 121 and the second vane 122 can be controlled to switch between three shift positions.

Further, the method comprises the following steps:

as shown in fig. 10, a first mounting plate 141 is welded to a lower portion of an outer side of the left side plate 113 of the first window frame, and a second mounting plate 142 is welded to an upper portion thereof, for fixing the first motor 131a and the second motor 132a, respectively. As shown in fig. 5 and 10, the top plate 111 and the bottom plate 112 of the first window frame 11 are respectively provided with a plurality of first holes 115, wherein the first holes 115 on the bottom plate 112 are used for the first round rods 121d to pass through, and the first holes 115 on the top plate 111 are used for the second round rods 122d to pass through; the first driven pulley 131c is located below the bottom plate 112, and the second driven pulley 132c is located above the top plate 111. A gap is formed between the first round bar 121d or the second round bar 122d and the first hole 115, so that the two round bars can rotate freely.

As shown in fig. 9, a fixing shaft 223 is inserted into one end of the third vane 221 and the fourth vane 222, which are connected to each other, and both upper and lower ends of the fixing shaft 223 are threaded, and the fixing shaft 233 is welded to the third vane 221 and the fourth vane 222. As shown in fig. 10, a plurality of second holes 215 are disposed on the top plate 211 and the bottom plate 212 of the second window frame 21, the second holes 215 of the top plate and the bottom plate are respectively used for the upper and the lower ends of the fixing shaft 223 to penetrate therethrough, and the fixing shaft 223 penetrates through the upper and the lower second holes 215 and then is screwed into nuts at both ends to be locked and fixed.

In order to facilitate the installation of the first sash 12 in the first sash 11, the first sash 11 may be designed to be detachable, as shown in fig. 10, the top plate 111 of the first sash is connected to the top portions of the left and right side plates 113 and 114 by screws, and when the first sash 12 is installed, the top plate 111 of the first sash is detached, after the first round bars 121d of the first sash 12 are inserted into the first holes 115 in the lower row, the top plate 111 of the first sash is placed while the second round bars 122d are inserted into the first holes 115 in the upper row, and then screws are screwed into both sides of the top plate 111 of the first sash to fix the first sash to the left and right side plates 113 and 114. Similarly, in order to facilitate the installation of the second vane 22 in the second sash 21, the top plate 211 of the second sash may be connected to the top portions of the left and right side plates 213 and 214 by screws.

Similarly to the above, in order to facilitate the connection between the first blade 21 and the second blade 122, the first connection head 121a may be detachably connected to the first blade 121, and as shown in fig. 8, the first connection head 121a is fixedly connected to the first blade 121 by a screw; when the first blade 21 and the second blade 122 need to be assembled, the first connection head 121a may be detached first, then the third round rod 122e of the second blade 122 is inserted into the blind hole 121b1 of the first blade 121, then the first connection head 121a is sleeved on the first round rod 122d of the second blade 122, and finally the first connection head 121a and the first blade 121 are locked by tightening the screw.

Preferably, as shown in fig. 1, 6 and 7, a first wedge-shaped rib 121f is formed at an end of the first vane 121 on a side facing the second window 2, and when the included angle α is equal to α 1, the first wedge-shaped rib 121f is closely attached to the corresponding fourth vane 222; a second wedge-shaped rib 122f is formed at an end of the second vane 122 on a side facing the second window 2, and when the included angle α is equal to α 1, the second wedge-shaped rib 122f is closely attached to the corresponding third vane 221.

If the first wedge-shaped rib 121f and the second wedge-shaped rib 122f are not designed, when the first blade 121 and the fourth blade 222 are attached or when the second blade 122 and the third blade 221 are attached, line-to-surface attachment is performed, and such attachment manner has poor sealing performance and may cause air leakage. Therefore, the first wedge-shaped protruding rib 121f and the second wedge-shaped protruding rib 122f are specially designed, so that the joint of the first blade 121 and the fourth blade 222 or the joint of the second blade 122 and the third blade 221 is converted into surface-to-surface joint, and the sealing performance is improved.

Preferably, an included angle between the third louver 221 and the fourth louver 222 facing the first window 1 is defined as β; wherein β is 90 °, α 1 is 62 °, α 2 is 90 °, and α 3 is 270 °.

Preferably, in the frame body of the second window frame 21, the edges of the second vanes 22 at the two outermost sides are hermetically fixed to the inner side of the second window 21 by welding.

Since there may be a gap between the two outermost second vanes 22 and the inner side of the second window 21, they are welded to seal the gap, so as to avoid air leakage.

Preferably, as shown in the enlarged view of the dashed line in fig. 1, a grid plate 23 is further disposed between the gaps of the second vanes 22, the grid plate 23 is formed by a plurality of thin plates 231 arranged at intervals, each thin plate 231 is parallel to the left and right side plates 213, 214 of the second window frame 21, a fixing rod 232 is transversely inserted into the middle of each thin plate 231, and each thin plate 231 is fixed to two adjacent second vanes 22 by the fixing rod 232.

For a common window, when the window is opened, outdoor wind blows into the room, the wind is relatively disordered and has no fixed direction, and the wind is not comfortable when blowing on a human body; if the wind can be adjusted to ensure that the wind blown into the room is not disturbed any more and is blown in along a specific direction, the comfortable degree of human perception can be improved; based on this idea, the applicant has added the grid plate 23 in the present embodiment, and the purpose of the grid plate is to adjust the wind so that the wind blowing into the room is not disturbed any more, but is smoothly blown in a specific direction.

In addition, as shown in fig. 5 and 6, in order to improve the sealing performance between each of the first and second louvers 121 and 122 and the inner wall of the first window frame 11, a sealing strip 123 may be disposed at the top and bottom of each of the first and second louvers 121 and 122, the sealing strip 123 is made of a soft material (e.g., a rubber strip) and the sealing strip 123 is tightly attached to the inner wall of the first window frame 11, so that even if the first and second louvers 121 and 122 rotate, the sealing strip 123 can seal the gap, thereby ensuring the sealing performance at the top and bottom of the first and second louvers 121 and 122 and avoiding the occurrence of air leakage. Similarly, the top and the bottom of the third blade plate 221 and the fourth blade plate 222 may also be provided with the same sealing strips (not shown in fig. 9) to ensure the sealing performance of the top and the bottom of the third blade plate 221 and the fourth blade plate 222, and avoid the occurrence of air leakage.

The principle of the embodiment is as follows:

when the window is installed, the first window 1 faces indoors, and the second window 2 faces outdoors; because two window bodies are designed, namely a first window body 1 and a second window body 2, a plurality of first window leaves 12 are arranged in the first window body 1, and a plurality of second window leaves 22 are arranged in the second window body 2; two blades (namely a third blade 221 and a fourth blade 222) in the second blades 22 are fixed in a V shape and cannot move, and the second blades 22 are arranged at intervals, and a gap is reserved between every two blades; the first vane 12 is correspondingly arranged beside the gap between the second vanes 22, and the angles of the two vanes (i.e. the first vane 121 and the second vane 122) can be opened and closed; the gap between the second louvers 22 and the first louvers 12 are the necessary passages for the air to flow between the indoor and outdoor, so that the opening and closing conditions of the passages can be changed by adjusting the included angle between the first louvers 121 and the second louvers 122, thereby changing the ventilation and ventilation conditions of the window;

that is, as shown in fig. 1, when the included angle α is α 1(α 1 is 62 °), since the first vane 121 and the second vane 122 are respectively attached to the fourth vane 222 and the third vane 221, a passage through which indoor and outdoor air flows is blocked, outdoor air cannot be blown into the room, indoor air cannot flow out of the room, and the window is in an air-tight and wind-tight state;

as shown in fig. 2, when the included angle α is α 2(α 2 is 90 °), since there is a gap between the first blade 121 and the fourth blade 222, a gap between the second blade 122 and the third blade 221, and a V-shaped revolve groove is formed between the first blade 121 and the second blade 122, and the two gaps are respectively at both sides of the revolve groove, even if outdoor wind blows into the gap between the second blades 22, the wind is hard to flow around the gap between the first blade 121, the fourth blade 222, or the second blade 122, or the third blade 221 (as shown in the enlarged view of the dashed line frame in fig. 2), and thus the window has a function of blocking wind from outside, thereby blocking wind from blowing into the chamber, but not blocking mutual flow of indoor and outdoor air too much, that is, the window can block air flowing at high outdoor height from entering into the chamber or slow down wind flowing into the chamber from outside, but the normal flow of indoor and outdoor air is not excessively hindered, namely low-speed air can flow between the indoor and outdoor through the gap of the window, and the window is in a ventilation and windproof state;

when the included angle α is α 3(α 3 is 270 °), since the V-shaped arrangement directions of the first vane 12 and the second vane 22 are the same, the V-shaped revolve groove between the first vane 121 and the second vane 122 does not exist, at this time, indoor and outdoor air can flow mutually, and after outdoor air blows into the gap between the second vane 22, the outdoor air can also flow into the room along the first vane 121 or the second vane 122 (as shown in the enlarged view of the dashed frame in fig. 3), that is, the outdoor highly flowing air can be blown into the room quickly, the air speed is not reduced too much, and at this time, the window is in an air-permeable and air-permeable state.

Description of the drawings: the ventilation means that low-speed indoor and outdoor gases can flow through each other, that is, the indoor gas can normally flow to the outdoor and the outdoor gas can normally flow to the indoor under the condition of no wind pressure; the ventilation means that outdoor wind can be smoothly blown into a room, namely outdoor wind can be blown into the room without speed reduction, and the ventilation means that outdoor wind cannot be smoothly blown into the room, so that the wind speed is greatly reduced even if the wind enters the room, and even almost no wind speed exists.

Based on the above working principle, the beneficial effects of this embodiment are: the embodiment adds a new function to the window, namely, the function of ventilation and wind tightness, which is a function that all windows do not have at present; that is, after the improvement of the embodiment, the window has three positions of closed, half-open and full-open, which respectively correspond to three states of airtight, airtight and ventilated, wherein the first and third states are all possessed by the window at present, and after the second state is added, the window can block outdoor wind, so that the window can not blow into the room at a higher speed, meanwhile, because the window is half-open and still has a gap in the second state, the indoor gas can still flow to the outdoor, the outdoor low-speed gas can also flow to the indoor, therefore, when windy weather occurs, the window can be adjusted to be half-open, so that on one hand, the air permeability of the window can be ensured, on the other hand, the windy wind can also be blocked to blow into the room, thereby improving the indoor comfort degree during windy weather, namely, the normal circulation of indoor and outdoor air can be ensured, the influence of outdoor wind on the indoor can be avoided; therefore, when the multifunctional window of the embodiment is applied to a green building, the functionality of the green building can be improved.

Claims (5)

1. A movable window vane for a building window is characterized by comprising a first vane plate (121) and a second vane plate (122), wherein one side of the first vane plate (121) and one side of the second vane plate (122) are connected together in a hinge mode, and the included angle between the first vane plate and the second vane plate is adjustable;

wherein, the top of the first blade plate (121) is provided with a first connector (121a), the bottom of the first blade plate (121) is provided with a second connector (121b), and an inwards concave abdicating groove (121c) is arranged between the first connector (121a) and the second connector (121 b); wherein, the first connector (121a) is provided with a through hole (121a1) penetrating through the first connector, one end of the second connector (121b) facing the abdicating groove (121c) is provided with a blind hole (121b1), and the other end is fixed with a first round rod (121 d); a first notch (122a) avoiding the first connecting head (121a) is arranged at the top of the second blade (122), a second notch (122b) avoiding the second connecting head (121b) is arranged at the bottom of the second blade (122), a tabling part (122c) embedded into the abdicating groove (121c) is arranged between the first notch (122a) and the second notch (122b), a second round rod (122d) is fixed at the first notch (122a) at the top of the tabling part (122c), and a third round rod (122e) is fixed at the second notch (122b) at the bottom of the tabling part (122 c); and the second round bar (122d) passes through the first connector (121a) from the through hole (121a1) and extends out of the first connector (121a), and the third round bar (122e) is inserted into the second connector (121b) from the blind hole (121b 1).

2. The movable vane for a building window as claimed in claim 1, wherein the first vane (121) and the second vane (122) are made of a transparent material.

3. The movable vane for a building window as claimed in claim 1, wherein the first vane (121) and the second vane (122) are each a strip plate structure.

4. The movable vane for a building window according to claim 1, wherein the thickness of the first vane (121) and the second vane (122) is not more than 5 mm.

5. The movable vane for a building window according to claim 4, wherein the first vane (121) and the second vane (122) each have a thickness of 2 mm.

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