Downward-pressing sealing type blind window

Abstract

The utility model provides a downward-pressing sealing type shutter which comprises a supporting frame, a plurality of blades movably installed outside the supporting frame and a driving device for driving the blades to move. The supporting frame is provided with a plurality of windows, and each window is provided with a blade which is located on the outer side of the window and can completely cover the window. The driving device can drive the blades to rotate relative to the supporting frame so as to adjust the opening and closing angle of the blades, and when the opening and closing angle of the blades is 0 degree, the driving device can drive the blades to press downwards by a certain distance in the direction close to the supporting frame so as to press the window sealing ring, and the blades can completely seal the window. The driving device enables the blades to rotate so as to adjust the opening and closing angle, the blades are arranged on the outer side of the window, when the blades are closed, the blades press downwards by a certain distance to press the window sealing ring, the sealing performance of the blind window is guaranteed when the blind window is closed, water leakage is prevented, and the blind window can be used for the side of a vehicle or a building or a public facility. The skylight can also be used on the top of a building or a public facility as a skylight.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of shutter, concretely relates to a down pressure sealing type shutter. BACKGROUND

[0002] The shutter is applied to community, villa, factory building, school, hospital, shopping mall, office building, office building, municipal and public facilities. The shutter blade is movably installed in the frame, and the shutter is opened or closed by moving the blade relative to the frame. The driving mode of the blade movement includes manual and electric modes.

[0003] The electric shutter is driven by the motor through the transmission mechanism to rotate the blade to open or close the shutter. For example, the shutter disclosed in CN201510072316.6, the glass sheet (i.e. the shutter blade) is rotatably installed in the frame through the transmission shaft, and the stepping motor drives all the glass sheets (i.e. the shutter blades) to rotate through the gear and transmission chain to open or close the shutter. However, the aforementioned shutter can only realize the flipping action of the blade. Since the force on the end part away from the rotation center of the blade is smaller, when the rotating glass sheet closes the shutter, the force on the two ends of the blade away from the rotation center is uneven, especially when the blade width is large, which makes the sealing effect of the shutter poor, and the shutter is difficult to be used as a skylight. SUMMARY

[0004] The utility model aims at solving the technical problems existing in the prior art, and provides a down pressure sealing type shutter.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a down pressure sealing type shutter, comprising a support frame, a plurality of blades movably installed outside the support frame, and a driving device for driving the plurality of blades to move; the support frame has a plurality of windows spaced along the length direction, each window is provided with a blade located outside and capable of completely covering it, and the blade or the support frame is further provided with a window sealing ring capable of being annularly arranged outside each window; the driving device can drive the blade to rotate relative to the support frame to adjust the opening angle of the blade, when the opening angle of the blade is 0°, the driving device can drive the blade to press down a distance towards the support frame to compress the window sealing ring.

[0006] The technical scheme has the advantages that the blade is arranged outside the window, the blade is driven to rotate by the driving device to adjust the opening and closing angle, and the blade is pressed down by a distance when the blade is closed to press the sealing ring of the window to ensure the sealing performance of the shutter when the shutter is closed, thereby preventing water leakage. Compared with the existing blade which can only realize the action of turning over, the blade of the utility model can not only turn over, but also press the sealing ring when the blade is closed, so that the sealing effect is better. The utility model can be used not only on the side of a vehicle (such as an armored vehicle), a building or a public facility, but also on the top of the vehicle, the building or the public facility, and can be used as a skylight.

[0007] In a preferred embodiment of the utility model, the inner side of the support frame is provided with a first guide groove and a second guide groove corresponding to each window, the first guide groove comprises an arc-shaped groove and a first straight groove extending along the thickness direction of the support frame and communicating with the lower end of the arc-shaped groove, and the second guide groove is a second straight groove extending along the thickness direction of the support frame and located outside the first straight groove; the bottom of the blade is fixedly connected with a connecting plate, the connecting plate is provided with a first positioning pin and a second positioning pin, the first positioning pin is clamped into the first guide groove and can slide in the first guide groove, and the second positioning pin is clamped into the second guide groove and can slide in the second guide groove; the driving device drives the first positioning pin to slide in the first guide groove; when the second positioning pin is located at the top of the second straight groove, the driving device drives the first positioning pin to slide in the arc-shaped groove, so that the connecting plate drives the blade to rotate around the first positioning pin to adjust the opening and closing angle of the blade; when the driving device drives the first positioning pin to slide in the first straight groove, the connecting plate drives the second positioning pin to slide in the second straight groove, so that the blade moves linearly along the thickness direction of the support frame.

[0008] The technical scheme has the advantages that the first guide groove, the second guide groove, the first positioning pin and the second positioning pin are arranged to guide and limit the movement path of the blade, the driving device drives the first positioning pin to slide in the first straight groove, and the shutter can be smoothly opened and closed.

[0009] In a preferred embodiment of the utility model, the driving device comprises a long connecting rod extending along the length direction of the support frame, a plurality of short connecting rods rotatably connected with the long connecting rod and arranged in parallel, and a driving mechanism for driving the long connecting rod to move, one end of the short connecting rod away from the long connecting rod is rotatably connected with the connecting plate through the first positioning pin, and the driving mechanism drives the long connecting rod to move, so that the first positioning pin slides in the first guide groove.

[0010] The connecting plate of each blade is connected with the long connecting rod through the short connecting rod, so that the plurality of blades are connected and moved, the long connecting rod is driven to move by the driving mechanism, all the blades can move synchronously, and the structure is simple.

[0011] In a preferred embodiment of this utility model, a first transmission plate and a second transmission plate are rotatably connected to both ends of the long connecting rod, and the ends of the first transmission plate and the second transmission plate away from the long connecting rod are rotatably connected to the support frame. The long connecting rod, the first transmission plate, the second transmission plate and the support frame form a parallelogram mechanism, and the driving mechanism drives the parallelogram mechanism to move.

[0012] The above technical solution improves the stability of the long connecting rod by setting a first transmission plate and a second transmission plate, and the long connecting rod, the first transmission plate, the second transmission plate and the support frame form a parallelogram mechanism. The parallelogram mechanism also restricts the running path of the long connecting rod, so that the long connecting rod moves stably along the set path.

[0013] In a preferred embodiment of this utility model, a plurality of lugs are fixedly connected to the inner side of the support frame. The ends of the first transmission plate and the second transmission plate away from the long connecting rod are respectively rotatably connected to the corresponding lugs through the first rotating shaft and the second rotating shaft. The driving mechanism drives the first transmission plate to rotate around the first rotating shaft so that the parallelogram mechanism can move.

[0014] The above technical solution facilitates installation by providing lugs to support the first and second transmission plates.

[0015] In another preferred embodiment of the present invention, the driving mechanism includes an inclined telescopic cylinder, one end of which is rotatably connected to the first transmission plate, and the other end of which is rotatably connected to the support frame. By extending or shortening the telescopic cylinder, the first transmission plate is driven to rotate around the first pivot.

[0016] The above technical solution uses a telescopic cylinder to make the first transmission plate rotate around the first rotating shaft, thereby moving the parallelogram mechanism. The short connecting rod drives the blades to rotate, thus opening and closing the louvers. This solution is simple and reliable.

[0017] In another preferred embodiment of this utility model, the telescopic cylinder is an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0018] In another preferred embodiment of this utility model, two connecting plates are fixed to the bottom of each blade, and the two connecting plates are located at both ends of the blade in the length direction. There are two long connecting rods, and each of the two connecting plates in the length direction of each blade is connected to the two long connecting rods through a short connecting rod.

[0019] The above technical solution applies force from both ends along the length of the blade to make it move, resulting in a more uniform force distribution, making the louver structure more stable and its operation more reliable.

[0020] In another preferred embodiment of this utility model, two long connecting rods are fixedly connected by a connecting rod, and a driving mechanism drives one of the long connecting rods to move so that the two long connecting rods move synchronously.

[0021] The above technical solution uses a drive mechanism to drive the movement of two long connecting rods, which has good synchronization and reduces the power source, thus lowering the failure rate.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the outer three-dimensional structure of the venetian blinds in the open state according to an embodiment.

[0025] Figure 2 This is a side view of the venetian blinds in the open state according to an embodiment.

[0026] Figure 3 This is a three-dimensional schematic diagram of the louver in the embodiment when the slats are open at 0° and not fully closed.

[0027] Figure 4 This is a side view of the louver in the embodiment when the slats are open at 0° and not fully closed.

[0028] Figure 5 This is a three-dimensional schematic diagram of the venetian blinds when fully closed, as shown in the embodiment.

[0029] Figure 6 This is a side view of the venetian blinds in an embodiment when they are fully closed.

[0030] Figure 7 This is a side view of the support frame in the embodiment.

[0031] Figure 8 This is a schematic diagram of the inner structure of the venetian blinds in an embodiment.

[0032] The reference numerals in the accompanying drawings include: support frame 10, window 11, arc groove 12, first straight groove 13, second straight groove 14, lug 15, connecting seat 16, window frame 17, blade 20, connecting plate 21, first positioning pin 22, second positioning pin 23, drive device 30, long connecting rod 31, short connecting rod 32, drive mechanism (telescopic cylinder) 33, first transmission plate 34, second transmission plate 35, connecting rod 36, first rotating shaft 41, second rotating shaft 42, third rotating shaft 43, fourth rotating shaft 44, fifth rotating shaft 45, and sixth rotating shaft 46. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0036] This utility model provides a pressure-sealed louver, such as Figures 1-6 As shown, in a preferred embodiment, the venetian blind includes a support frame 10, a plurality of blades 20 movably mounted outside the support frame 10, and a drive device 30 for driving the blades 20 to move. The support frame 10 has a plurality of windows 11 spaced apart along its length. Each window 11 has a corresponding blade 20 located on its outer side that completely covers it; that is, the size of the blade 20 is larger than the window 11. The blades 20 or the support frame 10 are also provided with window sealing rings that can be arranged around the outer periphery of each window 11. For example, the window sealing ring is fixed (adhesively or snap-fitted) to the inner side of the blade 20 near the support frame 10, and the window sealing ring is a rectangular rubber ring adapted to the shape of the window 11.

[0037] The drive unit 30 can drive the blades 20 to rotate relative to the support frame 10 to adjust the opening and closing angle of the blades 20, thereby opening or closing the louvers; such as Figure 4 and Figure 6As shown, when the opening angle of the blade 20 is 0°, the driving device 30 can drive the blade 20 to press down a certain distance towards the support frame 10 to press the window sealing ring 17, so that the blade 20 completely closes the window 11. Preferably, the support frame 10 is provided with a window frame 11 surrounding the window 11. When the blade 20 is completely closed, the window sealing ring is pressed against the window frame 17 to seal it.

[0038] This utility model of louvers can be used horizontally on the tops of vehicles (such as armored vehicles), buildings, and public facilities, such as vehicle roofs and rooftops, as skylights. The louvers can also be used vertically on the sides of vehicles, buildings, and public facilities, such as windows on exterior walls, as side windows. For example, when used as a skylight on the top of an armored vehicle, the drive device 30 rotates the blades 20 to adjust the opening angle. When the blades 20 are closed, they press down horizontally a certain distance, and the window sealing ring on the inner side of the blades 20 abuts against the window frame 17, causing the window sealing ring to elastically deform and form an interference fit, improving the sealing effect of the louvers and preventing water leakage.

[0039] like Figure 2 As shown, preferably, a frame sealing ring (not shown in the figure) is fixed to the inner side of the support frame 10 to improve the sealing between the louver and vehicles, buildings and public facilities.

[0040] like Figure 7 As shown, in this utility model, the inner side of the support frame 10 is provided with a first guide groove and a second guide groove corresponding to each window 11. The first guide groove includes an arc-shaped groove 12 and a groove that communicates with the lower end of the arc-shaped groove 12 along the thickness direction of the support frame 10. Figure 7 The first straight groove 13 extends in the vertical direction (as shown), and the connection between the first straight groove 13 and the arc-shaped groove 12 is smoothly transitioned; the second guide groove extends along the thickness direction of the support frame 10 and is located outside the first straight groove 13. Figure 7 The second straight groove 14 (shown on the upper side) has an arc-shaped groove 12 centered at the top of the second straight groove 14. (Combined) Figure 1 and Figure 2 As shown, a connecting plate 21 is fixed to the bottom of the blade 20. A first positioning pin 22 and a second positioning pin 23 are installed on the connecting plate 21. The first positioning pin 22 is engaged in the first guide groove and can slide in the first guide groove. The second positioning pin 23 is engaged in the second guide groove and can slide in the second guide groove.

[0041] In this embodiment, the drive device 30 drives the first positioning pin 22 to slide in the first guide groove, thereby causing the blade 20 to move. Figure 2As shown, when the second positioning pin 23 is located at the top of the second straight groove 14, the driving device 30 drives the first positioning pin 22 to slide in the arc groove 12, which in turn causes the connecting plate 21 to drive the blade 20 to rotate around the first positioning pin 22, thereby adjusting the opening and closing angle of the blade 20. When the first positioning pin 22 moves to the top of the arc groove 12, the opening and closing angle of the blade 20 is at its maximum. When the first positioning pin 22 moves to the bottom of the arc groove 12 and the connection point with the first straight groove 13, the opening and closing angle of the blade 20 is 0°.

[0042] When the driving device 30 drives the first positioning pin 22 to slide in the first straight groove 13, the connecting plate 21 drives the second positioning pin 23 to slide in the second straight groove 14, causing the blade 20 to move linearly along the thickness direction of the support frame 10. Specifically, as shown... Figure 4 and Figure 6 As shown, when the blade 20 is closed, the drive device 30 drives the first positioning pin 22 to slide downward in the first straight groove 13, and the connecting plate 21 drives the second positioning pin 23 to slide downward in the second straight groove 14, so that the blade 20 moves horizontally downward. The window sealing ring on the inner side of the blade 20 abuts against the window frame 17 outside the window 11 and is compressed to achieve a seal. When the blade 20 is opened, the drive device 30 drives the first positioning pin 22 to slide upward in the first straight groove 13, and the connecting plate 21 drives the second positioning pin 23 to slide upward in the second straight groove 14, so that the blade 20 moves horizontally upward and the blade 20 leaves the window 11.

[0043] like Figure 2 , Figure 4 and Figure 6 As shown, in a preferred embodiment, the drive device 30 includes a long connecting rod 31 extending along the length of the support frame 10, a plurality of short connecting rods 32 arranged in parallel and rotatably connected to the long connecting rod 31, and a drive mechanism 33 for driving the long connecting rod 31 to move. The end of the short connecting rod 32 away from the long connecting rod 31 is rotatably connected to the connecting plate 21 through a first positioning pin 22. The drive mechanism 33 drives the long connecting rod 31 to move so that the first positioning pin 22 slides in the first guide groove.

[0044] Specifically, such as Figure 6 As shown, for example, the first guide groove is located to the left of the second guide groove. When the louvers are closed, the short connecting rod 32 tilts from top to bottom from right to left. Combined with... Figure 4 As shown, when the blinds need to be opened, the drive mechanism 33 causes the long connecting rod 31 to move to the upper right, the long connecting rod 31 causes the short connecting rod 32 to rotate counterclockwise, the short connecting rod 32 causes the first positioning pin 22 to move upward in the first straight groove 13, driving the second positioning pin 23 to move upward in the second straight groove 14 to the top of the second straight groove 14, causing the blades 20 to move upward a certain distance and leave the window 11; Figure 2As shown, continuing to move the long connecting rod 31 to the upper right causes the short connecting rod 32 to continue rotating counterclockwise. The short connecting rod 32 causes the first positioning pin 22 to move upward in the arc-shaped groove 12, so that the blade 20 rotates clockwise around the second positioning pin 23 to open the louver. By moving the long connecting rod 31 to the upper right through the drive mechanism 33, the opening angle of the blade 20 can be increased. By moving the long connecting rod 31 to the lower left, the opening angle of the blade 20 can be decreased until the louver is closed.

[0045] like Figure 2 , Figure 4 and Figure 6 As shown, in another preferred embodiment, the two ends of the long connecting rod 31 are respectively rotatably connected to a first transmission plate 34 and a second transmission plate 35, for example, the left side is the first transmission plate 34 and the right side is the second transmission plate 35. The upper ends of the first transmission plate 34 and the second transmission plate 35 away from the long connecting rod 31 are rotatably connected to the support frame 10. The first transmission plate 34 and the second transmission plate 35 are arranged in parallel. The long connecting rod 31, the first transmission plate 34, the second transmission plate 35 and the support frame 10 form a parallelogram mechanism. The driving mechanism 33 drives the parallelogram mechanism to move. For example, multiple lugs 15 are fixed to the inner side of the support frame 10. The upper ends of the first transmission plate 34 and the second transmission plate 35 away from the long connecting rod 31 are rotatably connected to the corresponding lugs 15 through the first rotating shaft 41 and the second rotating shaft 42, respectively. The lower ends of the first transmission plate 34 and the second transmission plate 35 are rotatably connected to the long connecting rod 31 through the third rotating shaft 43 and the fourth rotating shaft 44, respectively. The drive mechanism 33 drives the first transmission plate 34 to rotate around the first rotating shaft 41 so that the parallelogram mechanism can move, thereby causing the first positioning pin 22 to slide in the first guide groove to open and close the louvers.

[0046] In this embodiment, the drive mechanism 33 includes an inclined telescopic cylinder, which is an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. The telescopic cylinder is inclined from top to bottom and from right to left. One end of the telescopic cylinder 33 is rotatably connected to the first transmission plate 34 via a fifth rotating shaft 45, and the other end of the telescopic cylinder 33 away from the first transmission plate 34 is rotatably connected to the connecting seat 16 on the support frame 10 via a sixth rotating shaft 46. By extending or shortening the telescopic cylinder 33, the first transmission plate 34 is driven to rotate around the first rotating shaft 41.

[0047] Specifically, when the blinds need to be opened, the telescopic cylinder 33 shortens, causing the first transmission plate 34 to rotate counterclockwise around the first rotating shaft 41 (at this time, the telescopic cylinder 33 rotates clockwise around the sixth rotating shaft 46 to adapt), causing the long connecting rod 31 to move to the upper right. The long connecting rod 31, through the short connecting rod 32, causes the connecting plate 21 to drive the blades 20 upward a certain distance away from the window 11. Further shortening the telescopic cylinder 33 causes the blades 20 to rotate clockwise around the second positioning pin 23 to open the blinds. By shortening the telescopic cylinder 33, the opening angle of the blades 20 can be increased; by extending the telescopic cylinder 33, the opening angle of the blades 20 can be decreased until the blinds are closed.

[0048] like Figure 1 and Figure 8 As shown, in another preferred embodiment, two connecting plates 21 are fixed to the bottom of each blade 20. The two connecting plates 21 are located at both ends of the blade 20 in the length direction. There are two long connecting rods 31, which are set corresponding to the connecting plates 21 at both ends of the blade 20. Each of the two connecting plates 21 in the length direction of each blade 20 is connected to the two long connecting rods 31 through a short connecting rod 32. In this way, a parallelogram mechanism composed of long connecting rods 31, a first transmission plate 34, a second transmission plate 35 and the support frame 10 is set on each side of the support frame 10 in the width direction.

[0049] Preferably, the drive mechanism 33 (telescopic cylinder) drives the two parallelogram mechanisms to move synchronously, thereby actuating the blades 20. For example, two long connecting rods 31 are fixedly connected by connecting rods 36, and two first transmission plates 34 are also fixedly connected by connecting rods 36. Then, the telescopic cylinder 33 drives one of the first transmission plates 34 to rotate around the first rotating shaft 41, thus enabling the two parallelogram mechanisms to move synchronously. It should be noted that, to ensure the firm connection between the two parallelograms, several connecting rods 36 can be added for reinforcement without interference.

[0050] In the description of this specification, the references to terms such as "preferred embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A push-to-seal blind, characterised in that, The support frame, a plurality of blades movably mounted outside the support frame, and a driving device for driving the plurality of blades to move; The support frame has a plurality of windows spaced along the length direction of the support frame, each window is provided with a blade located outside the window and capable of completely covering the window, and a window sealing ring capable of being annularly arranged outside the periphery of each window is further arranged on the blade or the support frame; The driving device is capable of driving the blade to rotate relative to the support frame to adjust the opening angle of the blade, and when the opening angle of the blade is 0°, the driving device is capable of driving the blade to be pressed towards the support frame by a distance to compress the window sealing ring.

2. The under-pressure sealed louver of claim 1, wherein, The inner side of the support frame is provided with a first guide groove and a second guide groove corresponding to each window, the first guide groove comprises an arc-shaped groove and a first straight groove extending along the thickness direction of the support frame and communicating with the lower end of the arc-shaped groove, and the second guide groove is a second straight groove extending along the thickness direction of the support frame and located outside the first straight groove; The bottom of the blade is fixedly connected with a connecting plate, the connecting plate is provided with a first positioning pin and a second positioning pin, the first positioning pin is clamped into and capable of sliding in the first guide groove, and the second positioning pin is clamped into and capable of sliding in the second guide groove; The driving device drives the first positioning pin to slide in the first guide groove; When the second positioning pin is located at the top of the second straight groove, the driving device drives the first positioning pin to slide in the arc-shaped groove, so that the connecting plate drives the blade to rotate around the first positioning pin to adjust the opening angle of the blade; When the driving device drives the first positioning pin to slide in the first straight groove, the connecting plate drives the second positioning pin to slide in the second straight groove, so that the blade moves linearly along the thickness direction of the support frame.

3. The under-pressure sealed louver of claim 2, wherein, The driving device comprises a long connecting rod extending along the length direction of the support frame, a plurality of short connecting rods arranged in parallel and rotationally connected with the long connecting rod, and a driving mechanism for driving the long connecting rod to move, one end of the short connecting rod away from the long connecting rod is rotationally connected with the connecting plate through the first positioning pin, and the driving mechanism drives the long connecting rod to move so that the first positioning pin slides in the first guide groove.

4. The bottom-seal louver according to claim 3, wherein Both ends of the long connecting rod are respectively rotationally connected with a first transmission plate and a second transmission plate, one end of the first transmission plate and the second transmission plate away from the long connecting rod is rotationally connected with the support frame, the long connecting rod, the first transmission plate, the second transmission plate and the support frame form a parallelogram mechanism, and the driving mechanism drives the parallelogram mechanism to move.

5. The under-pressure sealed louver of claim 4, wherein, The inner side of the support frame is fixedly connected with a plurality of lugs, one end of the first transmission plate and the second transmission plate away from the long connecting rod is respectively rotationally connected with a corresponding lug through a first rotation shaft and a second rotation shaft, and the driving mechanism drives the first transmission plate to rotate around the first rotation shaft to make the parallelogram mechanism move.

6. The press-to-seal blind of claim 5, wherein, The driving mechanism comprises an inclined telescopic cylinder, one end of the telescopic cylinder is rotationally connected with the first transmission plate, and the other end of the telescopic cylinder away from the first transmission plate is rotationally connected with the support frame, and the first transmission plate is driven to rotate around the first rotation shaft by lengthening or shortening the telescopic cylinder.

7. The press-to-seal louver of claim 6, wherein, The telescopic cylinder is an electric cylinder, a pneumatic cylinder or a hydraulic cylinder.

8. A press-to-seal blind according to any one of claims 3 to 7, wherein, Two connecting plates are fixed at the bottom of each blade, and two connecting plates are respectively located at both ends of the length direction of the blade.

9. The press-to-seal louver of claim 8, wherein, Two long connecting rods are fixed by connecting rods, and one driving mechanism drives one long connecting rod to move to make the two long connecting rods move synchronously.

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