Closable shutter

Abstract

The utility model relates to the technical field of shutters, and discloses a closable shutter which comprises a frame, a plurality of shutter plates are rotatably connected to the inside of the frame through pin shafts and are arranged at equal intervals from top to bottom, connecting blocks are fixedly installed on the back faces of the shutter plates, a lead screw is driven to rotate through a forward and reverse motor, and the shutter plates are connected with the connecting blocks. The internal thread plate moves to drive a rack to move, the rack is meshed with a second connecting frame, so that the rack can drive the second connecting frame to move, the second connecting frame moves up and down and can drive a first connecting frame to move up and down, the first connecting frame moves up and down to drive a transmission plate to move up and down, and electric closing is achieved. When power is off or electric closing is not suitable, only the second connecting frame needs to be pulled backwards so that the teeth on the second connecting frame can be separated from the rack, at the moment, the first connecting frame can be driven to move up and down by pulling the second connecting frame up and down, and the purpose of manual closing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of louver technology, specifically a closable louver. Background Technology

[0002] Ships are floating structures that perform tasks such as transportation, operations, and research. The ship's propulsion system is a crucial component, and it and its auxiliary systems are vital to the vessel. However, these systems require complex piping systems for fuel, lubricating oil, compressed air, etc., making them inherently prone to fire hazards. In the event of a fire in the ship's machinery areas, all personnel should evacuate and release fire extinguishing agents. However, since ventilation openings are often much higher than accessible to personnel, while conventional fixed steel louvers provide adequate ventilation, closing them is extremely difficult. Some ships use closable louvers, which are typically operated electrically or manually, without the option to actively choose the operating mode. Utility Model Content

[0003] The purpose of this invention is to provide a closable louver to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a closable louver, comprising a frame, wherein a louver panel is rotatably connected to the inside of the frame via a pin, wherein multiple louver panels are provided and arranged at equal intervals from top to bottom, a connecting block is fixedly installed on the back of the louver panel, and a transmission plate is rotatably connected to the end of the connecting block away from the louver panel via a pin, wherein the transmission plate is rotatably connected to all the connecting blocks, and a closing mechanism is fixedly installed on the outer wall of the transmission plate;

[0005] The closing mechanism includes a first connecting frame and a forward / reverse motor. The first connecting frame is fixedly installed on one outer wall of the transmission plate. A second connecting frame is movably sleeved on the first connecting frame. A rack is slidably arranged inside the first connecting frame. An integrally formed tooth is provided on the outer wall of the second connecting frame facing the rack, and the tooth meshes with the rack. An elastic element is fixedly installed on the inner side of the second connecting frame. One end of the elastic element is connected to the second connecting frame, and the other end is fixedly connected to the inner wall of the first connecting frame. The forward / reverse motor is fixedly installed on the outer wall of the frame. A lead screw is fixedly installed at the output end of the forward / reverse motor. An internal thread plate is threaded onto the outer wall of the lead screw. The bottom of the rack is fixedly connected to the top of the internal thread plate.

[0006] According to the claim closable louver, an upper sealing plate is fixedly installed on the top inner wall of the frame, and a lower sealing plate is fixedly installed on the bottom inner wall of the frame, wherein the upper sealing plate and the lower sealing plate are offset about the center of the frame.

[0007] Furthermore, the frame is fixedly installed with maximum opening limit blocks on the inner walls of the left and right sides. Multiple sets of maximum opening limit blocks are provided, and each corresponds to a louver.

[0008] Furthermore, a protective shell is fixedly installed on the outer wall of the frame, which covers the forward and reverse motors, lead screws, internal thread plates, racks, and other structures.

[0009] Furthermore, a pull plate is fixedly installed at the bottom of the second connecting frame, and a throttle handle is fixedly installed at the bottom end of the pull plate.

[0010] Furthermore, an open button and a close button are fixedly installed on one side of the outer wall of the protective shell, and the open button and the close button are electrically connected to the forward and reverse motors via a wiring harness.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The forward and reverse motors drive the lead screw to rotate, which in turn moves the internal thread plate up or down. The movement of the internal thread plate moves the rack. Because the rack meshes with the second connecting frame, the rack can move the second connecting frame. The up and down movement of the second connecting frame can also move the first connecting frame up and down. The up and down movement of the first connecting frame moves the transmission plate up and down, thus achieving electric closure. When the power is off or electric closure is not suitable, simply pull the second connecting frame backward to separate the teeth on the second connecting frame from the rack. At this time, pulling the second connecting frame up and down will move the first connecting frame up and down, thus achieving manual closure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Structural diagram of the rear view;

[0015] Figure 3 This is a structural schematic diagram of a cross-sectional view of the frame of this utility model from another side;

[0016] Figure 4 This is a schematic diagram of the closing mechanism of this utility model;

[0017] Figure 5 This is a structural schematic diagram of a side cross-sectional view of the connecting frame of this utility model.

[0018] In the diagram: 1. Frame; 2. Louvered plate; 3. Connecting block; 4. Transmission plate; 5. Closing mechanism; 501. Connecting frame one; 502. Connecting frame two; 503. Rack; 504. Internal threaded plate; 505. Lead screw; 506. Forward and reverse motor; 507. Elastic element; 6. Upper sealing plate; 7. Lower sealing plate; 8. Maximum opening limit block; 9. Protective shell; 10. Open button; 11. Close button; 12. Pull plate; 13. Throttle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Furthermore, in the description of this utility model specification and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a closable louver, including a frame 1, with louvered panels 2 rotatably connected inside the frame 1 via pins. Multiple louvered panels 2 are arranged at equal intervals from top to bottom. A connecting block 3 is fixedly installed on the back of the louvered panel 2. A transmission plate 4 is rotatably connected to the end of the connecting block 3 away from the louvered panel 2 via a pin. The transmission plate 4 is rotatably connected to all the connecting blocks 3. By pulling the transmission plate 4 up and down, the connecting blocks 3 are moved, thereby pulling the louvered panels 2 to rotate, realizing the opening and closing of the louvered panels 2. A closing mechanism 5 is fixedly installed on the outer wall of the transmission plate 4.

[0025] The closing mechanism 5 includes a first connecting frame 501 and a forward / reverse motor 506. The first connecting frame 501 is fixedly installed on one side of the outer wall of the transmission plate 4. A second connecting frame 502 is movably sleeved on the first connecting frame 501. A rack 503 is slidably arranged inside the first connecting frame 501. An integrally formed tooth is provided on the outer wall of the second connecting frame 502 facing the rack 503, and the tooth meshes with the rack 503. An elastic element 507 is fixedly installed on the inner side of the second connecting frame 502. One end of the elastic element 507 is connected to the second connecting frame 502, and the other end is fixedly connected to the inner wall of the first connecting frame 501. The forward / reverse motor 506 is fixedly installed on the outer wall of the frame 1. A lead screw 505 is fixedly installed at the output end of the forward / reverse motor 506. An internal thread plate 504 is threaded on the outer wall of the lead screw 505. The bottom of the rack 503 is fixedly connected to the top of the internal thread plate 504.

[0026] The forward and reverse motor 506 drives the lead screw 505 to rotate, which in turn drives the internal thread plate 504 to move up or down. The movement of the internal thread plate 504 drives the rack 503 to move. Because the rack 503 meshes with the second connecting frame 502, the rack 503 can drive the second connecting frame 502 to move. The up and down movement of the second connecting frame 502 can also drive the first connecting frame 501 to move up and down. The up and down movement of the first connecting frame 501 drives the transmission plate 4 to move up and down, thus achieving electric closing. When the power is off or electric closing is not suitable, simply pull the second connecting frame 502 backward to separate the teeth of the second connecting frame 502 from the rack 503. At this time, pulling the second connecting frame 502 up and down can drive the first connecting frame 501 to move up and down, thus achieving manual closing. After releasing the second connecting frame 502, the elastic element 507 will push the second connecting frame 502 forward, which will cause the second connecting frame 502 to re-mesh with the rack 503, so that electric closing can still be performed after the forward and reverse motor 506 is turned on.

[0027] It should also be noted that after the louver 2 is opened by electric closing, if the louver 2 is closed manually and the forward and reverse motor 506 is turned on to close it electrically, the transmission plate 4 will not be able to move down further because the louver 2 is already closed. Consequently, the connecting frame 1 501 and the connecting frame 2 502 will not be able to move down further. At this time, the internal thread plate 504 drives the rack 503 to move down. The teeth on the rack 503 and the teeth on the connecting frame 2 502 will generate a force, which will push the connecting frame 2 502 backward, so that the connecting frame 2 502 and the rack 503 are separated. That is, it will not hinder the rack 503 from moving down. When the louver 2 is closed manually, the distance that the connecting frame 1 501 moved down relative to the rack 503 is restored. When the forward and reverse motor 506 is turned on again to open the louver 2, the rack 503 can still drive the connecting frame 2 502 to move up.

[0028] In some embodiments, such as Figure 1 and Figure 3 As shown, an upper sealing plate 6 is fixedly installed on the top inner wall of the frame 1, and a lower sealing plate 7 is fixedly installed on the bottom inner wall of the frame 1. The upper sealing plate 6 and the lower sealing plate 7 are offset about the center of the frame 1, so that when the louver 2 is closed, the edge of the uppermost louver 2 presses on the upper sealing plate 6, and the edge of the lowermost louver 2 presses on the lower sealing plate 7, thereby increasing the sealing performance of the louver 2 when it is closed.

[0029] In some embodiments, such as Figure 3 As shown, maximum opening limit blocks 8 are fixedly installed on the inner walls of the left and right sides of the frame 1. There are multiple sets of maximum opening limit blocks 8, which correspond one-to-one with the louvers 2. When the louvers 2 are opened to the maximum limit, that is, when the louvers 2 are perpendicular to the frame 1, the louvers 2 press on the maximum opening limit blocks 8, so that the louvers 2 will not be forcibly rotated in the opposite direction.

[0030] In some embodiments, such as Figure 4 As shown, a protective shell 9 is fixedly installed on the outer wall of the frame 1. The protective shell 9 covers the forward and reverse motor 506, lead screw 505, internal thread plate 504, rack 503 and other structures. The protective shell 9 protects the forward and reverse motor 506, lead screw 505, internal thread plate 504, rack 503 and other structures, and at the same time makes the overall appearance more aesthetically pleasing.

[0031] In some embodiments, such as Figure 4 As shown, a pull plate 12 is fixedly installed at the bottom of the second connecting frame 502, and a handle 13 is fixedly installed at the bottom end of the pull plate 12. The pull plate 12 is set to extend the second connecting frame 502, so that when pulling the second connecting frame 502, there is no need to raise the arm to a higher position. The handle 13 makes it more convenient for the user to hold.

[0032] In some embodiments, such as Figure 1 and Figure 3 As shown, an open button 10 and a close button 11 are fixedly installed on one side of the outer wall of the protective housing 9. The open button 10 and the close button 11 are electrically connected to the forward and reverse motor 506 through a wiring harness. By pressing the open button 10 and the close button 11, the forward and reverse motor 506 is controlled to rotate forward and reverse, thereby controlling the opening and closing of the louver 2.

[0033] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A closable venetian blind, comprising a frame, characterized in that: The frame is internally rotatably connected to multiple louvers. A connecting block is installed on the back of each louver. A transmission plate is rotatably connected to the end of each connecting block away from the louver. The transmission plate is rotatably connected to all the connecting blocks. A closing mechanism is fixedly installed on the outer wall of the transmission plate. The closing mechanism includes a first connecting frame and a forward and reverse motor. The first connecting frame is installed on one outer wall of the transmission plate. A second connecting frame is movably sleeved on the first connecting frame. A rack is slidably arranged inside the first connecting frame. The outer wall of the second connecting frame facing the rack meshes with the rack. An elastic element is fixedly installed on the inner side of the second connecting frame. One end of the elastic element is connected to the second connecting frame, and the other end is fixedly connected to the inner wall of the first connecting frame. The forward and reverse motors are mounted on the frame, and a lead screw is fixedly installed at the output end of the forward and reverse motors. An internal thread plate is threaded onto the outer wall of the lead screw, and the rack is fixedly connected to the internal thread plate.

2. The closable louver according to claim 1, characterized in that: An upper sealing plate is fixedly installed on the top inner wall of the frame, and a lower sealing plate is fixedly installed on the bottom inner wall of the frame. The upper and lower sealing plates are offset about the center of the frame.

3. The closable louver according to claim 1, characterized in that: The frame is fixedly installed with maximum opening limit blocks on both inner walls. Multiple sets of maximum opening limit blocks are provided, and each block corresponds to one of the louvers.

4. The closable louver according to claim 1, characterized in that: A protective shell is fixedly installed on the outer wall of the frame, and the protective shell covers the forward and reverse motors, lead screw, internal thread plate and rack.

5. The closable louver according to claim 4, characterized in that: An open button and a close button are fixedly installed on one side of the outer wall of the protective housing. The open button and the close button are electrically connected to the forward and reverse motors via a wiring harness.

6. The closable louver according to claim 1, characterized in that: A pull plate is fixedly installed at the bottom of the second connecting frame, and a throttle handle is fixedly installed at the bottom end of the pull plate.

Images