Ventilation and waterproof shutter with opening and closing limiting function

Abstract

The utility model discloses a kind of ventilation waterproof louver that opens and closes limit, including installation frame, louver frame, waterproof louver, knuckle lock, spring rotating pin and filter element, the inside of installation frame both ends is equipped with spacing piece, one end of louver frame is equipped with the knuckle lock, another end is equipped with the spring rotating pin, the louver frame is connected on the installation frame by the spring rotating pin, the outer layer of louver frame is equipped with a plurality of waterproof louvers, the both sides of each waterproof louver are equipped with plastic buckle, the inner layer of louver frame is equipped with filter element.The utility model changes the flow passage shape of airflow cavity between louver frame and installation frame by setting spacing piece, prolongs airflow path, utilizes spacing piece to block airflow with small water droplet, improves the ventilation capacity and rainproof capacity of ventilation waterproof louver, spacing piece will form mechanical barrier to louver frame, improves the maintenance convenience and security of ventilation waterproof louver.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to a ventilation and waterproof louver with opening and closing limit. Background Technology

[0002] Existing equipment ventilation and waterproof louvers are fixed to the air inlet of the equipment compartment by fasteners with sealing strips; or by using a steering knuckle lock to lock the louver assembly with pivot pins to the fixed frame; the main function is to prevent water droplets or fresh air containing small water droplets from entering the equipment compartment through the air inlet, and it also has a certain filtration capacity.

[0003] However, when maintaining waterproof louvers installed with fasteners, the fasteners must be removed or the entire air inlet mounting surface must be opened, which brings inconvenience and safety hazards to observation, maintenance, or filter replacement. Waterproof louvers that open externally using steering knuckle locks and pivot pins have large gaps between the louvers and the mounting frame, allowing water droplets or air containing small water droplets to easily bypass the louvers and enter the equipment compartment, causing damage to the equipment inside. Moreover, since there is no limit stop after the steering knuckle lock is opened, the louver components can easily open quickly to more than 90 degrees. Because the components are heavy, opening too quickly can cause damage to the louver structure or injure maintenance personnel. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by proposing a ventilation and waterproof louver with opening and closing limit.

[0005] To achieve the above objectives, the following technical solution was adopted:

[0006] A ventilated and waterproof louver with opening and closing limits includes a mounting frame, a louver frame, waterproof louvers, a steering knuckle lock, a spring pin, and a filter element. Limiting partitions are provided on the inner sides of both ends of the mounting frame. The steering knuckle lock is located at one end of the louver frame, and the spring pin is located at the other end. The louver frame is connected to the mounting frame via the spring pin. The outer layer of the louver frame has several waterproof louvers, each with plastic clips on both sides. The inner layer of the louver frame has a filter element.

[0007] Preferably, the mounting frame is provided with a guide groove, which is an elongated hole.

[0008] Preferably, the pin of the spring pivot is disposed in the guide groove and is capable of linear reciprocating motion along the guide groove.

[0009] Preferably, the inner wall of the mounting frame near the steering knuckle lock is provided with a groove, and the locking plate of the steering knuckle lock is engaged in the groove after rotation.

[0010] Preferably, the louvered frame is provided with flow guide grooves on both sides, one end of the flow guide groove is a flange extending outward from the louvered frame, and the other end is provided with a ridge. An airflow cavity is formed between the flow guide groove and the mounting frame, and the size of the flange is smaller than the size of the airflow cavity inlet.

[0011] Preferably, the outer frame of the louvered frame is provided with drainage holes, which are connected to the guide groove.

[0012] Preferably, the waterproof louver is provided with a slot, and the inner side of the plastic buckle is provided with a protrusion, and the slot is engaged with the protrusion on the inner side of the plastic buckle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention incorporates a limiting partition on the mounting frame, altering the shape of the flow channel in the airflow cavity to an S-shape. The limiting partition and the elongated flow channel force the airflow within the airflow cavity to pass over the surfaces of the limiting partition and the louver frame before exiting from the outlet of the airflow cavity. This causes water droplets and small water droplets carried in the airflow to gradually gather on the surfaces of the limiting partition and the louver frame. Under the influence of gravity, these droplets are guided by the limiting partition into the flow channel and then discharged from the drain hole to the outside of the louver, thus preventing water droplets and airflow carrying small water droplets from directly entering the air inlet surface of the waterproof louver.

[0015] The limiting spacers on the mounting frame can block the flanges of the louver frame when the waterproof louvers are opened to a certain angle, allowing only a portion of the louvers to be opened. This enables tasks such as replacing filters, inspecting the louver structure, and observing the interior of the chamber, while also reducing the amount of dust from the external environment entering the equipment chamber. When maintenance is needed on the louver structure or interior of the chamber, the louver frame can be lifted upwards along the guide groove and then flipped outwards to fully open the louver frame, providing more space for cleaning and maintenance of the waterproof louvers and the interior of the chamber.

[0016] The limiting spacer on the mounting frame of this utility model, together with the flange of the louver frame, will form a mechanical lock when the steering knuckle lock is opened, so that the louver frame stops opening outward and effectively prevents the waterproof louver assembly from opening rapidly due to inertia under accidental conditions, causing accidental structural damage or injury to personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the internal structure of the mounting frame of this utility model;

[0019] Figure 3This is a cross-sectional view of the louver of this utility model in a semi-open state;

[0020] Figure 4 This is a cross-sectional view of the louver of this utility model in a semi-open state;

[0021] Figure 5 This is a cross-sectional view of the airflow cavity composed of the mounting frame and the louvered frame of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the louver of this utility model; Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] As shown in Figure 1, this utility model provides a ventilation and waterproof louver with opening and closing limits, including a mounting frame 1, a louver frame 2, waterproof louvers 3, a steering knuckle lock 4, a spring pivot pin 5, and a filter element 6. Limiting partitions 11 are provided on the inner sides of both ends of the mounting frame 1. The limiting partitions 11 are integrally formed with the mounting frame 1 and can lock the flanges 22 of the louver frame 2. The steering knuckle lock 4 is provided at one end of the louver frame 2, and the spring pivot pin 5 is provided at the other end. The steering knuckle lock 4 can firmly lock the louver frame 2 onto the mounting frame 1 through its own mechanical engagement or frictional resistance, preventing accidental movement or detachment. The spring pivot pin 5 utilizes the elasticity of the spring to allow the louver frame 2 to automatically rotate when opened, revealing the internal structure. The louver frame 2 is connected to the mounting frame 1 via the steering knuckle lock 4 and the spring pivot pin 5. The outer layer of the louver frame 2 is provided with several waterproof louvers 3. Each waterproof louver 3 has plastic clips 31 on both sides to secure it, preventing it from moving or falling off and thus affecting ventilation. The inner layer of the louver frame 2 is provided with a filter element 6. After airflow passes through the waterproof louvers 3 on the louver frame 2, the filter element 6 filters the airflow, removing moisture and dust carried in the air to prevent damage to equipment or dust accumulation inside the cabin.

[0025] During installation, the waterproof louvers 3 are placed on the outer layer of the louver frame 2 to perform preliminary air filtration, preventing larger dust or water droplets from entering the equipment compartment. The waterproof louvers 3 have slots 32, and the inner side of the plastic clips 31 has protrusions 33. The slots 32 engage with the protrusions 33 on the inner side of the plastic clips 31. Several plastic clips 31 are then interlocked until the waterproof louvers 3 fill the outer layer of the louver frame 2, and the waterproof louvers 3 are secured with the plastic clips 31 to prevent them from loosening. Next, the filter element 6 is installed on the inner layer of the louver frame 2 to further filter smaller particles in the air, protecting the equipment from damage.

[0026] like Figure 2 As shown, a groove 13 is provided on the inner wall of the mounting frame 1 near the steering knuckle lock 4. After the locking plate of the steering knuckle lock 4 is rotated, it is locked in the groove 13. The steering knuckle lock 4 is set on the flange 22 of the louvered frame 2. The groove 13 on the mounting frame 1 and the locking plate of the steering knuckle lock 4 cooperate with each other to form a strong locking structure.

[0027] When using, such as Figure 3 As shown, after rotating the steering knuckle lock 4 to open the louver, the louver frame 2 rotates and resets around the pin of the spring pivot 5 under the drive of the spring pivot 5. When the spring pivot 5 rotates to a certain angle, the flange 22 of the louver frame 2 is blocked by the limiting partition 11 on the inner side of the mounting frame 1. At this time, the louver is in a half-open state, which can be used for replacing the filter element 6, checking the louver structure, and observing the equipment compartment. After the steering knuckle lock 4 is opened, the limiting partition 11 can effectively prevent the waterproof louver 3 assembly from opening completely quickly due to inertia under unexpected conditions, providing protection for maintenance personnel and avoiding injury to maintenance personnel caused by the rapidly flipping louver frame 2. At the same time, it can also prevent the impact force generated by the excessive flipping of the louver frame 2 from damaging the connection between the mounting frame 1 and the spring pivot 5, and can further prevent the filter element 6 from falling off accidentally.

[0028] like Figure 4 As shown, when maintenance is required in the louver structure or equipment compartment, simply lift the louver frame 2 upwards along the guide groove 12. At this time, the flange 22 of the louver frame 2 cannot be blocked by the limiting partition 11. Under the action of the spring pivot 5, the louver frame 2 continues to flip outwards, and the louver frame 2 is fully opened and in the fully open state, so that the louver frame 2, waterproof louver 3, or equipment compartment can be cleaned and maintained.

[0029] like Figure 3 , Figure 4 As shown, the mounting frame 1 is provided with a guide groove 12, which is an elongated hole. The pin of the spring pivot 5 is disposed in the guide groove 12 and can move linearly back and forth along the guide groove 12. The elongated hole of the guide groove 12 provides sufficient space and path guidance for the movement of the spring pivot 5, ensuring that after the pin of the spring pivot 5 moves to the other end of the guide groove 12, the flange 22 of the louver frame 2 will not be blocked by the limiting spacer 11, so that the louver frame 2 can be fully opened.

[0030] like Figure 5 As shown, the louvered frame 2 has flow channels 21 on both sides. One end of the flow channel 21 is a flange 22 extending outward from the louvered frame 2, and the other end is a ridge 23. The flow channel 21 and the mounting frame 1 form an airflow cavity 7. The size of the flange 22 is smaller than the size of the inlet of the airflow cavity 7. When water droplets enter the airflow cavity 7 through the gap between the mounting frame 1 and the louvered frame 2, the water droplets are intercepted by the limiting partition 11. Under the action of gravity and inertia, the intercepted water droplets flow into the flow channel 21 on the side of the louvered frame 2 or into the water channel formed by the mounting frame 1 and the limiting partition 11, preventing water droplets from directly entering the equipment compartment and thus preventing damage to the equipment inside the compartment.

[0031] like Figure 6 As shown, the louver frame 2 has drainage holes 24 on its edge, which are connected to the guide channel 21. Water droplets collected in the guide channel 21 are discharged outside the waterproof louver 3 through the drainage holes 24, preventing excessive water accumulation in the guide channel 21 and thus preventing water from seeping into the equipment compartment, thereby improving the waterproof capability of the louver. When water droplets flow into the water channel formed by the mounting frame 1 and the limiting partition 11, the water droplets will flow directly out from the inlet gap of the airflow cavity 7.

[0032] When airflow carrying small water droplets enters through the gap between the flange 22 of the mounting frame 1 and the louvered frame 2, the airflow cavity 7 is separated by the limiting partition 11, forming an "S" flow channel. The airflow bypasses the limiting partition 11 and passes through the guide groove 21 on the side of the louvered frame 2. Due to the change in the shape of the airflow channel, the channel becomes longer and more tortuous. After passing through the guide groove 21, part of the airflow is blocked by the protrusion 23, thereby changing the flow direction. After colliding with the inner wall of the mounting frame 1, small vortices are gradually formed in the airflow cavity 7, further prolonging the stagnation time of the airflow in the airflow cavity 7. The small water droplets carried in the air gradually gather on the surface of the limiting partition 11 and the guide groove 21, and then are discharged through the drain hole 24, while the airflow is discharged from the outlet of the airflow cavity 7.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Those skilled in the art may find other optimizations and additional functions in this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A ventilation and waterproof louver with opening and closing limit, comprising a mounting frame (1), a louver frame (2), waterproof louvers (3), a steering knuckle lock (4), a spring pivot (5), and a filter element (6), characterized in that, The mounting frame (1) has a limiting partition (11) on the inner side of both ends. The louvered frame (2) has a steering knuckle lock (4) at one end and a spring pivot (5) at the other end. The louvered frame (2) is connected to the mounting frame (1) through the spring pivot (5). The outer layer of the louvered frame (2) has a number of waterproof louvers (3). Each waterproof louver (3) has plastic buckles (31) on both sides. The inner layer of the louvered frame (2) has a filter element (6).

2. The ventilation and waterproof louver with opening and closing limiting as described in claim 1, characterized in that, The mounting frame (1) is provided with a guide groove (12), which is an elongated hole.

3. The ventilation and waterproof louver with opening and closing limiting as described in claim 2, characterized in that, The pin of the spring pivot (5) is set in the guide groove (12) and can make linear reciprocating motion along the guide groove (12).

4. The ventilation and waterproof louver with opening and closing limiting as described in claim 1, characterized in that, The mounting frame (1) has a groove (13) on the inner wall near the steering knuckle lock (4), and the locking plate of the steering knuckle lock is locked in the groove after rotation.

5. The ventilation and waterproof louver with opening and closing limiting as described in claim 1, characterized in that, The louvered frame (2) has flow guide grooves (21) on both sides. One end of the flow guide groove (21) is a flange (22) extending outward from the louvered frame, and the other end is a ridge (23). An airflow cavity (7) is formed between the flow guide groove (21) and the mounting frame (1). The size of the flange (22) is smaller than the size of the inlet of the airflow cavity (7).

6. The ventilation and waterproof louver with opening and closing limiting as described in claim 5, characterized in that, The outer frame of the louvered frame (2) is provided with a drainage hole (24), which is connected to the guide groove (21).

7. The ventilation and waterproof louver with opening and closing limiting as described in claim 1, characterized in that, The waterproof louver (3) is provided with a slot (32), and the inner side of the plastic buckle (31) is provided with a protrusion (33). The slot (32) is engaged with the protrusion (33) on the inner side of the plastic buckle (31).

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