Automatic closing type rainproof shutter based on outdoor wind pressure

Abstract

The utility model provides an automatic closing type rainproof shutter based on outdoor wind pressure, which comprises a plurality of shutters, a plurality of rotating shafts and a plurality of connecting rods, the shutters and the rotating shafts are arranged in parallel, the shutters are penetrated by the rotating shafts, one ends of the shutters facing indoors are rotatably connected with the connecting rods, and the connecting rods are connected with the rotating shafts. When the shutters rotate around the rotating shafts, the connecting rods are synchronously driven to move up and down; the shutter further comprises a coil magnet and a spring, the coil magnet is located on the shutter frame right above the connecting rod, and the connecting rod is fixed at the bottom end of the shutter frame through the spring. The state of the shutter can be adjusted according to the real-time weather by means of the indoor and outdoor air pressure difference, the stability of the shutter in the closed state can be enhanced through the coil magnet, and opening and closing of the shutter can be remotely operated through the PLC control module in the closed state.

Description

Technical Field

[0001] This utility model relates to a rainproof louver that automatically closes based on outdoor wind pressure, belonging to the field of room temperature control. Background Technology

[0002] In special geographical environments such as coastal areas and deserts, extreme weather events such as super typhoons, rainstorms, and sandstorms may occur. In the field of HVAC, the commonly used outdoor rainproof louvers are fixed louvers, but there are also louvers controlled by motors.

[0003] For example, patent application number 202021536236.4, entitled "A Fan with Controllable Reverse Airflow of the Blades," discloses that during use, the motor is rotated by a circuit control board, and outdoor air is brought into the room or excessive indoor air is exhausted to the outside through the bidirectional fan blades. A wind pressure sensor is installed on the outside of the louver housing. By sensing the outdoor wind direction and force, the rotation speed of the bidirectional fan blades is automatically adjusted. When the outside wind pressure is low, indoor air can be exhausted to the outside. When the outside wind pressure is high, the bidirectional fan blades can be reversed to bring outside air into the room. While providing ventilation and heat dissipation, this effectively reduces power consumption and saves costs.

[0004] However, the existing technologies mentioned above are still insufficient in dealing with extreme weather conditions. In other words, in weather conditions such as drizzle, cross drizzle, localized strong winds, and sandstorms, problems such as reverse rain, reverse wind, and sand entering the air conditioning system may occur, damaging the equipment, making the system difficult to clean, and causing a sharp increase in maintenance costs.

[0005] Therefore, this utility model provides a rainproof louver that automatically closes based on outdoor wind pressure. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a rainproof louver that automatically closes based on outdoor wind pressure.

[0007] This utility model is implemented as follows:

[0008] An automatic closing rainproof louver based on outdoor wind pressure includes a louver, a pivot, and a connecting rod. The louver and the pivot are several in number and arranged in parallel. The pivot passes through the louver, and the end of the louver facing the indoors is rotatably connected to the connecting rod so that when the louver rotates around the pivot, it will synchronously drive the connecting rod to move up and down.

[0009] This utility model also includes a coil magnet and a spring. The coil magnet is located on the louvered frame directly above the connecting rod, and the connecting rod is fixed to the bottom end of the louvered frame by the spring.

[0010] As a further improvement, this utility model also includes a PLC control module, which is signal-connected to the coil magnet and used to control the opening and closing of the coil magnet.

[0011] As a further improvement, the connecting rod includes a vertical part and a horizontal part. The bottom end of the vertical part is vertically set at the bottom end of the louver frame by a spring. Several horizontal parts are horizontally fixed on one side of the vertical part, and the free end of the horizontal part is rotatably connected to one end of the louver.

[0012] As a further improvement, an adsorption element is installed at the top of the vertical part corresponding to the coil magnet, and the adsorption element and the coil magnet are magnetically attracted to each other.

[0013] As a further improvement, the adsorption element is a metal block made of metallic material.

[0014] As a further improvement, both ends of the rotating shaft are horizontally fixed to the louvered frame.

[0015] As a further improvement, the louver is divided into a first connecting part and a second connecting part after being penetrated by the rotating shaft, and the length of the first connecting part is less than the length of the second connecting part.

[0016] As a further improvement, a limit block is provided in the direction downward from the horizontal line of the rotating shaft, and the limit block is parallel to the rotating shaft.

[0017] As a further improvement, the length of the horizontal portion is less than the length of the vertical portion.

[0018] The beneficial effects of this utility model are: this utility model can adjust the state of the louvers according to the real-time weather and the wind pressure difference between indoors and outdoors; the coil magnet can enhance the stability of the louvers when closed; and the opening and closing of this utility model can be remotely operated through the PLC control module when closed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This utility model embodiment provides a schematic diagram of the principle of an automatic closing rainproof louver based on outdoor wind pressure under normal conditions.

[0021] Figure 2This utility model embodiment provides a schematic diagram of the principle of an automatically closing rainproof louver based on outdoor wind pressure in the closed state.

[0022] Figure 3 This utility model provides a structural schematic diagram of an automatic closing rainproof louver based on outdoor wind pressure.

[0023] Figure 4 This utility model provides a structural schematic diagram of an automatic closing rainproof louver based on outdoor wind pressure.

[0024] Reference numerals: 10 louver, 20 rotating shaft, 30 connecting rod, 40 coil magnet, 50 spring, 60 louver frame, 70 PLC control module, 301 vertical part, 302 horizontal part, 303 suction element, 80 limiting block, 101 first connecting part, 102 second connecting part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figures 1 to 4As shown, this embodiment provides a specific implementation of an automatic closing rainproof louver based on outdoor wind pressure, including a louver 10, a rotating shaft 20, and a connecting rod 30. The louvers 10 and the rotating shaft 20 are several in number and arranged in parallel. The louvers 10 are penetrated by the rotating shaft 20. The end of the louver 10 facing the indoors is rotatably connected to the connecting rod 30, so that when the louvers 10 rotate around the rotating shaft 20, the connecting rod 30 will move up and down synchronously.

[0028] In this embodiment, the present invention also includes a coil magnet 40 and a spring 50. The coil magnet 40 is located on the louvered frame 60 directly above the connecting rod 30, and the connecting rod 30 is fixed to the bottom end of the louvered frame 60 by the spring 50.

[0029] In the above technical solution, this utility model has two operating states, the conventional state as follows: Figure 1 and closed state, such as Figure 2 As shown, the principle behind these two states is as follows:

[0030] Under normal conditions, i.e., wind speed less than level 6, limited by the limit block 80 and the spring 50 at the bottom of the connecting rod 30, the louver 10 functions no differently than a regular rainproof louver. Figure 1 As shown.

[0031] When the wind speed is ≥6 and the outdoor wind pressure on the building surface is greater than 50Pa, the external force on the louver 10 is greater than the internal force because the outdoor wind pressure is greater than the wind pressure at the end of the vent. The louver 10 then closes around the pivot 20, causing the connecting rod 30 to move upwards and contact the coil magnet. ± power connections are provided at the top of the connecting rod 30 and the bottom of the adsorption component 303. When they contact each other, the coil is energized. In the energized state, the coil magnet 40 will attract the connecting rod 30, and the louver 10 will be in the closed state. Figure 2 As shown.

[0032] In this embodiment, the connecting rod 30 includes a vertical part 301 and a horizontal part 302. The bottom end of the vertical part 301 is vertically mounted at the bottom end of the louver frame 60 by a spring 50. A plurality of horizontal parts 302 are horizontally fixed on one side of the vertical part 301. The free end of the horizontal part 302 is rotatably connected to one end of the louver 10.

[0033] In this embodiment, an adsorption member 303 is installed at the top of the vertical part 301 corresponding to the coil magnet 40, and the adsorption member 303 and the coil magnet 40 are magnetically attracted to each other.

[0034] Furthermore, the adsorption component 303 is a metal block made of metal material, which can magnetically engage with the coil magnet 40 after the coil magnet 40 is energized. The adsorption component 303 made of metal material is easy to process.

[0035] In this embodiment, the two ends of the rotating shaft 20 are horizontally fixed to the louvered frame 60.

[0036] In this embodiment, the louver 10 is divided into a first connecting part 101 and a second connecting part 102 after being penetrated by the rotating shaft 20. The length of the first connecting part 101 is less than the length of the second connecting part. When there is a pressure difference between indoors and outdoors, the eccentrically set louver 10 is easier to rotate.

[0037] In this embodiment, a limiting block 80 is provided in the direction downward from the horizontal line of the rotating shaft 20. The limiting block 80 is parallel to the rotating shaft 20 and restricts the rotation direction of the louver 10.

[0038] In other embodiments, the length of the horizontal portion 302 is less than the length of the vertical portion 301, thereby reducing the overall weight of the connecting rod 30.

[0039] In this embodiment, the present invention also includes a PLC control module 70, which is signal-connected to the coil magnet 40. The coil magnet 40 is electrically connected to an external power supply. The PLC control module 70 is connected in series or in parallel in the circuit. The PLC control module 70 is also a PLC control system. The PLC control system is a new generation of industrial control device formed by introducing microelectronics technology, computer technology, automatic control technology and communication technology on the basis of traditional sequential controllers. Its purpose is to replace the sequential control functions of relays, execution logic, timing, counting and other functions, and to establish a flexible remote control system. It has the characteristics of strong versatility, convenient use, wide adaptability, high reliability, strong anti-interference ability and simple programming.

[0040] In the above technical solution, when the louvers are closed, the PLC control module 70 outputs a louver closing signal, which interlocks related equipment and sends an alarm signal to the property management and other monitoring rooms.

[0041] In other embodiments, based on this embodiment, the PLC module is equipped with a timer function, that is, after each power-on, it maintains a power-on time of 15 minutes, that is, it maintains the louvers in the closed state for at least 15 minutes; to avoid repeated start-stop due to changes in outdoor wind pressure; in the power-off mode, that is, under the automatic power-off after 15 minutes or the property management's forced power-off, the coil magnet loses its magnetic force, and the connecting rod, under the pull of the bottom spring, drives the louvers 10 to open, returning to the normal state, and the relevant ventilation system is interlocked and started.

[0042] In other embodiments, based on this embodiment, the PLC control module is equipped with a time-limited number of forced-lock functions. That is, if the louvers automatically close 3 times per hour due to outdoor wind pressure, the forced-lock mode is activated, keeping the coil energized for an extended period, thus ensuring the rainproof louvers remain closed for a long time. Triggering the louver's self-closing state 3 times within one hour signifies severe outdoor weather and prolonged strong winds.

[0043] In the above technical solutions, after the strong lock mode is activated, the property management needs to remotely cut off the power according to the weather conditions.

[0044] In summary, this invention can adjust the state of the louvers based on real-time weather and the wind pressure difference between indoors and outdoors. In addition, the design of the coil magnet and PLC control module enhances the stability of the louvers when closed. Furthermore, the invention can be remotely operated to open and close when closed.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rainproof louver that automatically closes based on outdoor wind pressure, characterized in that, Includes louvers (10), a pivot (20), and a connecting rod (30). There are several louvers (10) and pivots (20) arranged in parallel. The louvers (10) are penetrated by the pivots (20). The end of the louvers (10) facing the room is rotatably connected to the connecting rod (30) so that when the louvers (10) rotate around the pivots (20), the connecting rod (30) will move up and down synchronously. It also includes a coil magnet (40) and a spring (50), the coil magnet (40) being located on a louvered frame (60) directly above the connecting rod (30), the connecting rod (30) being fixed to the bottom of the louvered frame (60) by the spring (50).

2. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 1, characterized in that, It also includes a PLC control module (70), which is signal-connected to the coil magnet (40) and used to control the opening and closing of the coil magnet (40).

3. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 1, characterized in that, The connecting rod (30) includes a vertical part (301) and a horizontal part (302). The bottom end of the vertical part (301) is vertically mounted on the bottom end of the louver frame (60) by a spring (50). A number of horizontal parts (302) are horizontally fixed on one side of the vertical part (301). The free end of the horizontal part (302) is rotatably connected to one end of the louver (10).

4. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 2, characterized in that, An adsorption member (303) is installed at the top of the vertical part (301) corresponding to the coil magnet (40), and the adsorption member (303) and the coil magnet (40) are magnetically attracted to each other.

5. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 4, characterized in that, The adsorption element (303) is a metal block made of metallic material.

6. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 1, characterized in that, The two ends of the rotating shaft (20) are horizontally fixed on the louvered frame (60).

7. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 6, characterized in that, The louver (10) is divided into a first connecting part (101) and a second connecting part (102) after being penetrated by the rotating shaft (20). The length of the first connecting part (101) is less than the length of the second connecting part.

8. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 6, characterized in that, A limiting block (80) is provided in the direction of downwards from the horizontal line of the rotating shaft (20), and the limiting block (80) is parallel to the rotating shaft (20).

9. The rainproof louver based on outdoor wind pressure automatic closing type according to claim 3, characterized in that, The length of the horizontal part (302) is less than the length of the vertical part (301).

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