A ventilation grid

Abstract

The application relates to the technical field of grilles, in particular to a ventilation grille which comprises a frame body, leaf plates movably connected between the inner surfaces of the two sides of the frame body at equal intervals; an emergency closing mechanism is arranged in the inside of the leaf plate; the emergency closing mechanism comprises clamping grooves arranged on the two sides of the front end of the leaf plate, recesses arranged on the two sides of the rear end of the leaf plate, clamping blocks movably connected in the recesses, springs fixedly connected between the front ends of the clamping blocks and the recesses, rotating shafts fixedly connected on the two sides of the leaf plate, torsional springs fixedly sleeved on the outer sides of the rotating shafts, the rotating shafts and the torsional springs being located in the inside of the frame body, the side, away from the leaf plate, of the torsional spring being fixedly connected with the frame body, and the inside of the clamping groove being movably connected with a magnet block. The ventilation grille can be closed in emergency when a sudden gale and storm weather occurs in summer, rainwater can be prevented from splashing into the room when the room is unattended and the room is not closed in time, the cleanness and property safety of the room are ensured, and the problems in the background art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grating, in particular to a ventilation grating. BACKGROUND

[0002] The ventilation grating is a kind of grating for blocking foreign matters in the ventilation opening of building and machinery, which plays a role in blocking foreign matters into the ventilation opening under the premise of ensuring the ventilation effect.

[0003] There are many types of ventilation grating, among which the one used for window ventilation is most common in life. In order to keep the indoor air fresh, many families will open the window to facilitate the circulation of indoor air. However, opening the window will definitely cause safety hazards, especially for the residents living in high-rise buildings, there may be a phenomenon of people falling from the building. Therefore, a ventilation grating is usually installed on the window to play a protective role while ensuring ventilation.

[0004] Under normal circumstances, the ventilation grating can block dust and rainwater from entering the room. However, when it is used for ventilation in summer, the weather condition is prone to sudden change. When a rainstorm occurs, the rainwater will hit the ventilation grating under the action of wind. At this time, part of the rainwater will splash into the room. Since the weather changes unpredictably in summer, the residents cannot make preparations to close the window in advance. Therefore, it will cause rainwater to enter the room, which may pollute the room or cause damage to the property in the room.

[0005] Therefore, a ventilation grating is proposed. SUMMARY

[0006] The present application aims to provide a ventilation grating which can be closed in emergency when a sudden gale and rainstorm occurs in summer, so as to avoid rainwater from splashing into the room when no one closes the window in time, and to protect the cleanliness and property safety of the room, thereby solving the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a ventilation grating comprising a frame, wherein two side inner surfaces of the frame are movably connected with leaf plates at equal intervals.

[0008] The inside of the leaf plate is provided with an emergency closing mechanism.

[0009] The emergency closing mechanism can close the ventilation grating in bad weather to prevent rainwater from entering the room.

[0010] Preferably, the emergency closing mechanism comprises clamping grooves formed on both sides of the front end of the leaf plate, recesses formed on both sides of the rear end of the leaf plate, and clamping blocks movably connected inside the recesses, springs fixedly connected between the front end of the clamping blocks and the recesses, shafts fixedly connected to both sides of the leaf plate, torsional springs fixedly sleeved outside the shafts, the torsional force of the torsional springs being 5N, the shafts and the torsional springs being located inside the frame, the side of the torsional spring away from the leaf plate being fixedly connected to the frame, and the clamping grooves movably containing magnet blocks.

[0011] Preferably, the inside of the clamping groove is provided with an opening mechanism, the opening mechanism comprises limiting grooves, the limiting grooves are formed on the rear part of the inner wall of the side close to the two clamping grooves, receiving grooves are formed on the rear part of the inner wall of the side away from the two clamping grooves, the receiving grooves are open at the rear end of the leaf plate, the inside of the receiving grooves is slidably connected with a push block, and the push block is fixedly connected with the magnet block.

[0012] Preferably, the rear end of the inside of the leaf plate is provided with a sealing mechanism, the sealing mechanism comprises a cavity formed in the rear end of the inside of the leaf plate, a rubber air bag fixedly connected to the rear end of the leaf plate, air guide holes evenly formed between the cavity and the rubber air bag, a piston plate movably connected to the inside of the front end of the cavity, and sliding grooves formed on both sides of the inside of the recess.

[0013] Preferably, the sum of the friction between the piston plate and the cavity and the gravity of the clamping block is less than the magnetic attraction of the magnet block.

[0014] Preferably, in the open state of the leaf plate, the side close to the magnet block is clamped in the inside of the limiting groove, and the rubber air bag is in a contracted state.

[0015] Preferably, the inside of the upper end of the frame is provided with a cleaning mechanism, the cleaning mechanism comprises a cleaning bin formed in the inside of the upper end of the frame, a drive motor and a controller fixedly connected to the upper part of both sides of the inside of the cleaning bin, a connecting rod rotatably connected between the drive motor and the controller, winding wheels fixedly sleeved to both sides of the outer surface of the connecting rod, a hanging rope wound around the outer surface of the winding wheels, a cleaning roller fixedly connected to the lower end of the hanging rope, a trigger switch arranged on the rear part of the inner surface of the upper end of the frame, and an opening formed on the front part of the inner surface of the upper end of the frame.

[0016] Preferably, the leaf plate closely contacts the cleaning roller after being closed, and the controller, the drive motor and the trigger switch are electrically connected to an external power source.

[0017] Preferably, the shafts are located behind the central points of both sides of the leaf plate.

[0018] Preferably, the front part of the clamping groove is arc-shaped and flared.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. When a sudden stormy weather occurs in summer, strong airflow blows to the surface of the leaf plate, causing the leaf plate to rotate through the rotating shaft. At this time, the torsional spring is contracted under the action of the rotating shaft. When the front end of the leaf plate rotates downward, the upper end of the lower end leaf plate and the lower end of the upper end leaf plate are located in the same vertical plane. At this time, the magnet block is attracted by the magnetic attraction and the clamping block in the upper groove of the lower end leaf plate is attracted into the clamping groove of the upper end leaf plate. At this time, the spring is elongated under the pulling of the clamping block, and the adjacent leaf plates are closed and fixed by the clamping block, avoiding the rainwater from splashing into the room due to the failure of timely closing by the indoor person, and ensuring the cleanliness and property safety of the indoor.

[0021] 2. The clamping block moves through the sliding groove to drive the piston plate to move upward in the cavity, so that the piston plate pushes the gas in the cavity into the rubber air bag through the air guide hole, so that the rubber air bag is inflated, and the sealing property between the adjacent leaf plates is improved through the rubber air bag, further preventing rainwater from entering the room. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural diagram of the present application;

[0023] Figure 2 It is a leaf plate partial view of the present application;

[0024] Figure 3 It is a leaf plate top view sectional view of the present application;

[0025] Figure 4 It is a leaf plate top view partial sectional view of the present application;

[0026] Figure 5 It is a leaf plate rear view partial view of the present application;

[0027] Figure 6 It is a frame body front view partial sectional view of the present application;

[0028] Figure 7 It is a frame body trigger switch structure position diagram of the present application.

[0029] In the figure: 1, frame body; 2, leaf plate; 3, emergency closing mechanism; 31, clamping groove; 32, groove; 33, clamping block; 34, spring; 35, rotating shaft; 36, torsional spring; 4, opening mechanism; 41, limiting groove; 42, storage groove; 43, magnet block; 44, pushing block; 5, sealing mechanism; 51, rubber air bag; 52, cavity; 53, piston plate; 54, air guide hole; 55, sliding groove; 6, cleaning mechanism; 61, cleaning bin; 62, driving motor; 63, controller; 64, connecting rod; 65, winding wheel; 66, hanging rope; 67, cleaning roller; 68, trigger switch; 69, opening. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0031] Please refer to Figures 1 to 7 , the present application provides a technical solution:

[0032] A ventilation grid, as Figures 1 to 5 shown, comprising a frame 1, the two sides of the frame 1 are movably connected with a leaf plate 2 between the inner surfaces;

[0033] The inside of the leaf plate 2 is provided with an emergency closing mechanism 3;

[0034] The emergency closing mechanism 3 can close the ventilation grid in bad weather to prevent rainwater from entering the room;

[0035] When working, first install the ventilation grid on the window frame, when the window is opened for ventilation, the ventilation grid can block the exchange of materials between the inside and outside while ensuring ventilation, when sudden gale and rain weather occurs in summer, the leaf plate 2 can be closed through the emergency closing mechanism 3, so as to avoid rainwater from splashing into the room when no one is in the room to close in time, and ensure the cleanliness and property safety of the room.

[0036] The front, back, left and right in the case are based on the observation angle direction in the drawings Figure 1 , Figure 1 The front is close to the observation angle direction in the drawings; and the defined environment is the typhoon weather environment in summer;

[0037] As an embodiment of the present application, as Figures 1 to 5 shown, the emergency closing mechanism 3 comprises a clamping groove 31 opened at the front end of the leaf plate 2 on both sides, a recess 32 opened at the rear end of the leaf plate 2 on both sides, a clamping block 33 movably connected inside the recess 32, a spring 34 fixedly connected between the front end of the clamping block 33 and the recess 32, a rotating shaft 35 fixedly connected on both sides of the leaf plate 2, a torsional spring 36 fixedly sleeved on the outside of the rotating shaft 35, the torsional force of the torsional spring 36 is 5N, the rotating shaft 35 and the torsional spring 36 are located inside the frame 1, and the side of the torsional spring 36 away from the leaf plate 2 is fixedly connected with the frame 1, and the inside of the clamping groove 31 is movably connected with a magnet block 43;

[0038] The inside of the card slot 31 is provided with an opening mechanism 4, the opening mechanism 4 includes limiting groove 41, the limiting groove 41 is opened in the rear part of the inner wall of the side of the two card slots 31, the rear part of the inner wall of the side of the two card slots 31 is provided with a receiving groove 42, the receiving groove 42 is open to the rear end of the leaf plate 2, the inside of the rear end of the receiving groove 42 is slidably connected with the push block 44, and the push block 44 is fixedly connected with the magnet block 43;

[0039] The magnet block 43 is close to the side of the opening state of the leaf plate 2 and is combined with the inside of the limiting groove 41;

[0040] The pivot 35 is located behind the center point of the two sides of the leaf plate 2, and the front part of the card slot 31 is arc-shaped and flared;

[0041] When working, first, the leaf plate 2 is opened, the resident moves the magnet block 43 to the inside of the limiting groove 41 by sliding the push block 44, ensures that the magnet block 43 is located in the card slot 31, when the sudden gale and storm weather in summer, even if the inland city wind speed can reach 6 level strong wind in the typhoon weather, and the wind speed of 6 level strong wind is 10.8m / s-13.8m / s, take the lowest wind speed 10.8m / s, bring into the wind force calculation formula wp=v 2 / 1600, after the wind speed of 10.8m / s, the force of 7KG per square meter can be obtained, the strong airflow blows from the front of the grid to the surface of the leaf plate 2, because the pivot 35 on the leaf plate 2 is located behind the center point of the two sides of the leaf plate 2, so that after the airflow blows to the surface of the leaf plate 2, the front part of the leaf plate 2 is greater than the rear part, and the torsional force of the torsion spring 36 is 5N, at the same time, combined with the lever principle, so that the leaf plate 2 rotates through the pivot 35, at this time, the torsion spring 36 shrinks under the action of the rotation of the pivot 35, when the front end of the leaf plate 2 rotates to downward, the upper end of the lower end leaf plate 2 and the lower end of the upper end leaf plate 2 are located in the same vertical plane, at this time, the magnet block 43 is attracted to the card block 33 in the card slot 32 of the lower end leaf plate 2 under the action of the magnetic attraction, at this time, the spring 34 is elongated under the pulling of the card block 33, the adjacent leaf plate 2 is closed and fixed by the card block 33, avoids the rainwater from splashing into the room due to the indoor no one closes in time, protects the indoor neatness and property safety, the front part of the card slot 31 is arc-shaped and flared, which is more convenient for the insertion of the card block 33, so that the closure and fixation of the two leaf plates 2 can be completed when the two leaf plates 2 are not rotated to be completely vertical;

[0042] When the rain stops, the resident moves the magnet block 43 to the receiving groove 42 by sliding the push block 44, so as to release the magnetic attraction of the magnet block 43 to the card block 33, at this time, the card block 33 is pulled back to the recess 32 under the action of the contraction of the spring 34, so as to release the fixation between the adjacent leaf plates 2, and the pivot 35 drives the leaf plate 2 to rotate under the action of the elastic extension of the torsion spring 36, and then the leaf plate 2 is opened again for ventilation.

[0043] As one of the embodiments of the present application, as shown in Figure 4 With Figure 5 As shown in the figure, the inner rear end of the leaf plate 2 is provided with a sealing mechanism 5, the sealing mechanism 5 includes a cavity 52 opened in the inner rear end of the leaf plate 2, the rear end of the leaf plate 2 is fixedly connected with a rubber air bag 51, the cavity 52 and the rubber air bag 51 are uniformly provided with air guide holes 54, the inner front end of the cavity 52 is movably connected with a piston plate 53, the inner sides of the recess 32 are both provided with sliding grooves 55, the piston plate 53 is fixedly connected with the clamping block 33 through the sliding grooves 55;

[0044] The friction between the piston plate 53 and the cavity 52 and the gravity of the clamping block 33 are less than the magnetic attraction of the magnet block 43;

[0045] The rubber air bag 51 is in a contracted state in the opened state of the leaf plate 2;

[0046] When the adjacent leaf plate 2 rotates to the same vertical plane, the clamping block 33 is attracted into the clamping groove 31 under the magnetic action of the magnet block 43, the piston plate 53 is driven to move upward in the cavity 52 through the sliding grooves 55, so that the gas in the cavity 52 is pushed into the rubber air bag 51 through the air guide holes 54 by the piston plate 53, so that the rubber air bag 51 is inflated, the sealing between the adjacent leaf plates 2 is increased through the rubber air bag 51, and the rainwater is further prevented from entering the room.

[0047] As one of the embodiments of the present application, as shown in Figures 6 to 7 As shown in the figure, the inner upper end of the frame body 1 is provided with a cleaning mechanism 6, the cleaning mechanism 6 includes a cleaning bin 61 opened in the inner upper end of the frame body 1, the inner upper sides of the cleaning bin 61 are both fixedly connected with a driving motor 62 and a controller 63, the driving motor 62 and the controller 63 are rotatably connected with a connecting rod 64, the outer surfaces of the connecting rod 64 are both fixedly sleeved with a winding wheel 65, the outer surface of the winding wheel 65 is wound with a hanging rope 66, the lower end of the hanging rope 66 is fixedly connected with a cleaning roller 67, the rear part of the upper inner surface of the frame body 1 is provided with a trigger switch 68, and the front part of the upper inner surface of the frame body 1 is provided with an opening 69;

[0048] The leaf plate 2 is tightly attached to the cleaning roller 67 after being closed, and the controller 63, the driving motor 62 and the trigger switch 68 are all electrically connected between the external power supply;

[0049] When the blade 2 rotates to the vertical state, the upper part of the uppermost blade 2 contacts the trigger switch 68 to open the trigger switch 68, and the driving motor 62 and the controller 63 work, the driving motor 62 drives the connecting rod 64 to rotate, so that the winding wheel 65 follows the connecting rod 64 to rotate, thereby loosening the lifting rope 66 wound on the winding wheel 65, and the cleaning roller 67 at the lower end of the lifting rope 66 moves downward under the action of its own gravity, thereby cleaning the surface of the blade 2 through the cleaning roller 67, when the cleaning roller 67 moves to the lowermost blade 2, the controller 63 controls the driving motor 62 to reverse, so that the winding wheel 65 winds the lifting rope 66 to lift the cleaning roller 67, so that the cleaning roller 67 is retracted into the cleaning bin 61, and then the controller 63 controls the driving motor 62 to stop working, and the cleaning mechanism 6 cooperates with rainwater to clean the surface of the blade 2, solving the problem that the surface of the blade 2 is difficult to clean when located outdoors.

[0050] Working principle:

[0051] When working, first install the ventilation grid on the window frame, when the window is opened for ventilation, the ventilation grid can block the exchange of indoor and outdoor materials while ensuring ventilation, first open the blade 2, then the resident slides the magnet block 43 to move to the limiting groove 41 inside by the dial block 44, to ensure that the magnet block 43 is located in the clamping groove 31, when a strong wind and rain suddenly occurs in summer, the strong airflow blows to the surface of the blade 2, because the rotating shaft 35 on the blade 2 is located behind the center point of the two sides of the blade 2, so that when the airflow blows to the surface of the blade 2, the front part of the blade 2 is subjected to a greater force than the rear part, and at the same time, the lever principle is combined, so that the blade 2 rotates through the rotating shaft 35, at this time the torsional spring 36 is retracted under the action of the rotating shaft 35, when the front end of the blade 2 rotates downward, the upper end of the lower blade 2 and the lower end of the upper blade 2 are located in the same vertical plane, at this time the magnet block 43 is attracted to the clamping block 33 in the upper groove 32 of the lower blade 2 under the action of magnetic attraction, and the spring 34 is elongated under the pulling of the clamping block 33, the clamping block 33 is used to close and fix the adjacent blade 2, to avoid the rain from splashing into the room when no one is in the room in time, to ensure the cleanliness and property safety of the room, the front part of the clamping groove 31 is arc-shaped and flared, which is more convenient for the insertion of the clamping block 33, and can close and fix the two blades 2 before they are rotated to the vertical state.

[0052] When the rain stops, the residents slide the block 44 to drive the magnet block 43 to move into the storage groove 42, thereby removing the magnetic attraction of the magnet block 43 to the clamping block 33, at this time the clamping block 33 is pulled back into the recess 32 under the action of the contraction of the spring 34, thereby removing the fixation between the adjacent leaf plates 2, and under the action of the elastic extension of the torsion spring 36, the rotating shaft 35 drives the leaf plate 2 to rotate, thereby opening the leaf plate 2 again for ventilation, when the adjacent leaf plates 2 rotate in the same vertical plane, the clamping block 33 is attracted into the clamping groove 31 under the magnetic action of the magnet block 43, the piston plate 53 is moved upward in the cavity 52 by the clamping block 33 using the sliding groove 55, thereby pushing the gas in the cavity 52 into the rubber air bag 51 through the air guide hole 54 by the piston plate 53, so that the rubber air bag 51 expands, the rubber air bag 51 increases the sealing between the adjacent leaf plates 2, further preventing rainwater from entering the room, when the leaf plate 2 rotates to the vertical state, the upper part of the uppermost leaf plate 2 contacts the trigger switch 68 to open the trigger switch 68, at this time the drive motor 62 and the controller 63 work, the drive motor 62 drives the connecting rod 64 to rotate, so that the winding wheel 65 follows the connecting rod 64 to rotate, thereby loosening the hanging rope 66 wound on the winding wheel 65, the cleaning roller 67 at the lower end of the hanging rope 66 moves downward under the action of its own gravity, thereby cleaning the surface of the leaf plate 2 through the cleaning roller 67, when the cleaning roller 67 moves to the lowermost leaf plate 2, the controller 63 controls the drive motor 62 to reverse, so that the winding wheel 65 winds the hanging rope 66 to lift the cleaning roller 67, so that the cleaning roller 67 is retracted into the cleaning bin 61, then the controller 63 controls the drive motor 62 to stop working, the cleaning mechanism 6 cooperates with the rainwater to clean the surface of the leaf plate 2, solving the problem that the surface of the leaf plate 2 is difficult to clean when located outdoors.

[0053] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A ventilation grille comprising a frame, leaf plates being movably connected equidistantly between the inner surfaces of two sides of the frame; characterized in that, The inner part of the leaf plate is provided with an emergency closing mechanism; the emergency closing mechanism can close the through grid to prevent rainwater from entering the indoor in bad weather; The emergency closing mechanism comprises clamping grooves formed on both sides of the front end of the leaf plate, recesses formed on both sides of the rear end of the leaf plate, spring fixedly connected between the front end of the clamping block and the recess, a rotating shaft fixedly connected to both sides of the leaf plate, a torsional spring fixedly sleeved on the outer side of the rotating shaft, the torsional force of the torsional spring being 5N, the rotating shaft and the torsional spring being located in the inner part of the frame body, the side of the torsional spring away from the leaf plate being fixedly connected with the frame body, and a magnet block movably connected in the inner part of the clamping groove. The inner part of the clamping groove is provided with an opening mechanism, the opening mechanism comprises a limiting groove formed on the rear part of the inner wall of the side close to the two clamping grooves, a receiving groove formed on the rear part of the inner wall of the side away from the two clamping grooves, the rear end of the receiving groove being open to the rear end of the leaf plate, a push block slidingly connected to the inner rear end of the receiving groove, and the push block being fixedly connected with the magnet block. The inner upper end of the frame body is provided with a cleaning mechanism, the cleaning mechanism comprises a cleaning bin formed in the inner upper end of the frame body, a drive motor and a controller fixedly connected to the upper part of both sides of the inner part of the cleaning bin, a connecting rod rotatably connected between the drive motor and the controller, a winding wheel fixedly sleeved on both sides of the outer surface of the connecting rod, a lifting rope wound on the outer surface of the winding wheel, and a cleaning roller fixedly connected to the lower end of the lifting rope, a trigger switch arranged on the rear part of the inner surface of the upper end of the frame body, and an opening formed on the front part of the inner surface of the upper end of the frame body.

2. A vent grid according to claim 1, characterised in that The rear end of the inner part of the leaf plate is provided with a sealing mechanism, the sealing mechanism comprises a cavity formed in the rear end of the inner part of the leaf plate, a rubber air bag fixedly connected to the rear end of the leaf plate, air guide holes uniformly formed between the cavity and the rubber air bag, a piston plate movably connected to the front end of the inner part of the cavity, and a sliding groove formed on both sides of the inner part of the recess, the piston plate being fixedly connected with the clamping block through the sliding groove.

3. A vent grid according to claim 2, characterised in that, The friction force between the piston plate and the cavity and the gravity of the clamping block are smaller than the magnetic attraction force of the magnet block.

4. A vent grid according to claim 1, wherein, In the open state of the leaf plate, the side close to the magnet block is clamped in the inner part of the limiting groove, and the rubber air bag is in a contracted state.

5. A vent grid according to claim 1, wherein, After the leaf plate is closed, the leaf plate is tightly combined with the cleaning roller, the controller, the drive motor and the trigger switch are electrically connected with the external power supply.

6. A vent grid according to claim 1, wherein, The rotating shaft is located behind the central points of both sides of the leaf plate.

7. A vent grid according to claim 1, wherein, The front part of the clamping groove is in an arc flared shape.

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