Building ventilation device

Abstract

The utility model relates to the technical field of building ventilation, and discloses a building ventilation device which comprises an L-shaped air pipe, the outer wall of the L-shaped air pipe is sleeved with a connecting pipe, a fan is installed on the inner wall of the L-shaped air pipe through an installation frame, the outer wall of the L-shaped air pipe is fixedly connected with a connecting block, one end of the connecting pipe abuts against the connecting block, and two inserting grooves are formed in the outer wall of the connecting block; the outer wall of the end, facing the connecting block, of the connecting pipe is fixedly connected with a buckle, the buckle is inserted into the inner wall of the inserting groove, and the outer wall of the connecting block is provided with a disassembling and assembling mechanism. When pipelines need to be connected, the connecting pipe is connected to the outer wall of the L-shaped air pipe in a sleeving mode through the disassembling and assembling mechanism, and the connecting pipe abuts against the connecting block; the L-shaped air pipe abuts against the limiting frame, at the moment, the dismounting and mounting mechanism automatically fixes the connecting pipe, assembling is convenient, and the mounting speed is increased.

Description

Technical Field

[0001] This application relates to the technical field of building ventilation, and particularly relates to a building ventilation device. Background Art

[0002] With the acceleration of the urbanization process and the improvement of people's living standards, the requirements for the comfort and health of the living environment are getting higher and higher. As an important device to ensure the indoor air quality, the performance of the building ventilation device directly affects people's living experience;

[0003] Regarding the above related technologies, the inventor believes that when connecting pipes in existing building ventilation devices, they are generally connected by bolts, and the installation operation is relatively cumbersome, time-consuming and laborious. Moreover, the dust-proof net installed inside the ventilation pipe needs to be cleaned manually, which is rather troublesome. Therefore, a building ventilation device is proposed to solve the above problems.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior arts that are not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the problems that when connecting pipes in existing building ventilation devices, they are generally connected by bolts, the installation operation is relatively cumbersome, time-consuming and laborious, and the dust-proof net installed inside the ventilation pipe needs to be cleaned manually, which is rather troublesome, this application provides a building ventilation device.

[0006] A building ventilation device provided by this application adopts the following technical solution:

[0007] A building ventilation device includes an L-shaped air duct. A connecting pipe is sleeved on the outer wall of the L-shaped air duct. A fan is installed on the inner wall of the L-shaped air duct through a mounting frame. A connecting block is fixedly connected to the outer wall of the L-shaped air duct. One end of the connecting pipe abuts against the connecting block. Two slots are opened on the outer wall of the connecting block. A buckle is fixedly connected to the outer wall of the connecting pipe facing the connecting block. The buckle is inserted into the inner wall of the slot. A disassembly and assembly mechanism is installed on the outer wall of the connecting block;

[0008] Two fixing frames are fixedly connected to the inner wall of the connecting pipe. A plurality of connecting rods are fixedly connected to the opposite outer walls of the two fixing frames. A dust-proof net is slidably connected to the outer walls of the plurality of connecting rods. A plurality of second springs are also installed on the outer walls of the connecting rods. The dust-proof net is located between the plurality of second springs;

[0009] The disassembly and assembly mechanism includes a plurality of fixing rods fixedly connected to the outer walls on both sides of the connecting block. A movable plate is slidably connected to the outer walls of every two fixing rods. A clamping block is fixedly connected to the outer wall of the movable plate facing the connecting block. The clamping block penetrates through the connecting block and extends into the interior of the slot, and is clamped with the buckle.

[0010] Preferably, the disassembly and assembly mechanism further includes a plurality of L-shaped fixing plates fixedly connected to the outer walls on both sides of the L-shaped air duct. The end of the fixing rod far from the connecting block is fixedly connected to the outer wall of the L-shaped fixing plate. A first spring is installed on the outer wall of the fixing rod between the movable plate and the L-shaped fixing plate. A pull rod is fixedly connected to the middle outer wall of the movable plate.

[0011] Preferably, a rotating shaft is rotatably connected to the inner wall of the connecting pipe. Two cams are fixedly connected to the outer wall of the rotating shaft. The protruding parts of the two cams are in contact with the outer wall of the dust-proof net. A motor is fixedly installed on the outer wall of one side of the connecting pipe. The output end of the motor penetrates through the connecting pipe and is fixedly connected to one end of the rotating shaft.

[0012] Preferably, a collection box is inserted into the outer wall of the bottom of the connecting pipe. The collection box is communicated with the inner cavity of the connecting pipe and is located directly below the dust-proof net.

[0013] Preferably, a limiting frame is fixedly connected to the inner wall of the connecting pipe. A sealing groove is formed on the outer wall of the limiting frame facing the L-shaped air duct. One end of the L-shaped air duct located inside the connecting pipe abuts against the limiting frame. A sealing ring is adhesively connected to the outer wall of one end of the L-shaped air duct located inside the connecting pipe. The sealing ring is adaptively clamped with the sealing groove.

[0014] In summary, the present application includes the following beneficial technical effects:

[0015] 1. When it is necessary to connect the pipes, through the provided disassembly and assembly mechanism, the connecting pipe is sleeved on the outer wall of the L-shaped air duct, and the connecting pipe abuts against the connecting block, and the L-shaped air duct abuts against the limiting frame. At this time, the disassembly and assembly mechanism will automatically fix the connecting pipe, which is convenient for assembly and improves the installation speed;

[0016] 2. Through the provided motor, rotating shaft and cams, the dust-proof net can be driven to slide reciprocally on the outer wall of the connecting rod. When the dust-proof net slides, it squeezes a plurality of second springs. Under the elastic force of the plurality of second springs, the dust-proof net generates vibrations, so that the dust attached to the dust-proof net can be shaken off, and the dust will fall into the collection box for unified collection and cleaning, realizing the self-cleaning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall schematic diagram of the application embodiment;

[0018] Figure 2 is the partial cross-sectional view of the application embodiment;

[0019] Figure 3 is Figure 2 a schematic enlarged view of the structure at position A in

[0020] Figure 4 a partial cross-sectional view of the L-shaped air duct in the application embodiment;

[0021] Figure 5 is a partial cross-sectional view of the connecting pipe in the application embodiment.

[0022] Explanation of reference numerals: 1. L-shaped air duct; 2. Connecting pipe; 3. Connecting block; 4. Mounting frame; 5. Fan; 6. Fixed rod; 7. Movable plate; 8. Clamping block; 9. Pull rod; 10. L-shaped fixing plate; 11. First spring; 12. Buckle; 13. Slot; 14. Fixed frame; 15. Connecting rod; 16. Dust-proof net; 17. Second spring; 18. Rotating shaft; 19. Cam; 20. Motor; 21. Collection box; 22. Limit frame; 23. Sealing groove; 24. Sealing ring. Specific embodiments

[0023] The following further describes the present application in detail with reference to the attached Figures 1-5 drawings.

[0024] The embodiment of the present application discloses a building ventilation device. Referring to Figures 1-5 , a building ventilation device includes an L-shaped air duct 1, a connecting pipe 2 is sleeved on the outer wall of the L-shaped air duct 1, a fan 5 is installed on the inner wall of the L-shaped air duct 1 through a mounting frame 4, a connecting block 3 is fixedly connected to the outer wall of the L-shaped air duct 1, one end of the connecting pipe 2 abuts against the connecting block 3, two slots 13 are opened on the outer wall of the connecting block 3, a buckle 12 is fixedly connected to the outer wall of the connecting pipe 2 facing the connecting block 3, the buckle 12 is inserted into the inner wall of the slot 13, and a disassembly and assembly mechanism is installed on the outer wall of the connecting block 3;

[0025] Two fixed frames 14 are fixedly connected to the inner wall of the connecting pipe 2, a plurality of connecting rods 15 are fixedly connected to the opposite outer walls of the two fixed frames 14, a dust-proof net 16 is slidably connected to the outer walls of the plurality of connecting rods 15, and a plurality of second springs 17 are also installed on the outer walls of the connecting rods 15, and the dust-proof net 16 is located between the plurality of second springs 17;

[0026] The disassembly and assembly mechanism includes a plurality of fixed rods 6 fixedly connected to the outer walls on both sides of the connecting block 3, a movable plate 7 is slidably connected to the outer walls of every two fixed rods 6, a clamping block 8 is fixedly connected to the outer wall of the movable plate 7 facing the connecting block 3, the clamping block 8 penetrates through the connecting block 3 and extends into the interior of the slot 13, and is clamped with the buckle 12.

[0027] The disassembly and assembly mechanism further includes a plurality of L-shaped fixing plates 10 fixedly connected to the outer walls on both sides of the L-shaped air duct 1. One end of the fixing rod 6 away from the connecting block 3 is fixedly connected to the outer wall of the L-shaped fixing plate 10. A first spring 11 is installed on the outer wall of the fixing rod 6 between the movable plate 7 and the L-shaped fixing plate 10. A pull rod 9 is fixedly connected to the outer wall of the middle section of the movable plate 7.

[0028] A rotating shaft 18 is rotatably connected to the inner wall of the connecting pipe 2. Two cams 19 are fixedly connected to the outer wall of the rotating shaft 18. The convex portions of the two cams 19 are in contact with the outer wall of the dust-proof net 16. A motor 20 is fixedly installed on the outer wall of one side of the connecting pipe 2. The output end of the motor 20 penetrates through the connecting pipe 2 and is fixedly connected to one end of the rotating shaft 18.

[0029] A collection box 21 is inserted into the outer wall of the bottom of the connecting pipe 2. The collection box 21 is communicated with the inner cavity of the connecting pipe 2 and is located directly below the dust-proof net 16.

[0030] A limiting frame 22 is fixedly connected to the inner wall of the connecting pipe 2. A sealing groove 23 is formed on the outer wall of the limiting frame 22 facing the L-shaped air duct 1. One end of the L-shaped air duct 1 located inside the connecting pipe 2 abuts against the limiting frame 22. A sealing ring 24 is adhesively bonded to the outer wall of one end of the L-shaped air duct 1 located inside the connecting pipe 2. The sealing ring 24 is adaptively clamped with the sealing groove 23.

[0031] The implementation principle of an architectural ventilation device according to an embodiment of the present application is as follows: During installation, the connecting pipe 2 is sleeved on the outer wall of the L-shaped air duct 1, and the connecting pipe 2 abuts against the connecting block 3, and the L-shaped air duct 1 abuts against the limiting frame 22. The sealing ring 24 at the end of the L-shaped air duct 1 will be inserted into the sealing groove 23 on the limiting frame 22 to form a good soft sealing effect. At the same time, the disassembly and assembly mechanism will automatically fix the connecting pipe 2. Specifically, when the buckle 12 is inserted into the slot 13, the outer wall of the buckle 12 presses against the inclined surface at the end of the block 8, and the block 8 is extruded outwards. The block 8 drives the movable plate 7 to press the first spring 11 on the fixing rod 6, and the first spring 11 generates an elastic force. When the buckle 12 completely enters the inside of the slot 13, the hollow part of the buckle 12 is aligned with the end of the block 8, and the outer wall of the buckle 12 no longer presses against the block 8. At this time, the movable plate 7 drives the block 8 to reset under the elastic force of the first spring 11, so that the block 8 is clamped with the buckle 12 to lock the buckle 12. When the buckle 12 is locked, the connecting pipe 2 cannot be disassembled from the L-shaped air duct 1, which is convenient for assembly and improves the installation speed. During disassembly, the pull rod 9 can be directly pulled outwards, and the block 8 is driven by the movable plate 7 to disengage from the clamping with the buckle 12 to release the fixation of the connecting pipe 2, so as to facilitate the separation of the connecting pipe 2 from the L-shaped air duct 1;

[0032] After installation, start the fan 5. When the fan 5 rotates, it can ventilate the interior of the building, and the dust filter net 16 plays a filtering role to filter dust. When the dust filter net 16 is blocked due to long-term filtering and adhesion of dust, the ventilation effect will be affected. At this time, start the motor 20. The output shaft of the motor 20 drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the two cams 19 to rotate. When the cams 19 rotate, their convex parts will continuously abut against the dust filter net 16, causing the dust filter net 16 to slide on the outer walls of the multiple connecting rods 15, and then squeezing the multiple second springs 17. The elastic forces of the multiple second springs 17 act on the dust filter net 16 in the reverse direction, causing the dust filter net 16 to vibrate reciprocally, thereby shaking off the dust adhering to the dust filter net 16. The dust will fall into the collection box 21. Pull out the collection box 21 from the bottom of the L-shaped air duct 1 to collect and clean the dust uniformly, realizing the self-cleaning function.

[0033] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0034] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0036] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A building ventilation device, comprising an L-shaped air duct (1), characterized in that: The outer wall of the L-shaped air duct (1) is sleeved with a connecting pipe (2). A fan (5) is installed on the inner wall of the L-shaped air duct (1) through a mounting bracket (4). A connecting block (3) is fixedly connected to the outer wall of the L-shaped air duct (1). One end of the connecting pipe (2) abuts against the connecting block (3). Two slots (13) are formed in the outer wall of the connecting block (3). A buckle (12) is fixedly connected to the outer wall of the connecting pipe (2) at the end facing the connecting block (3). The buckle (12) is inserted into the inner wall of the slot (13). A disassembly and assembly mechanism is installed on the outer wall of the connecting block (3). Two fixing frames (14) are fixedly connected to the inner wall of the connecting pipe (2). A plurality of connecting rods (15) are fixedly connected to the opposite outer walls of the two fixing frames (14). A dust-proof net (16) is slidably connected to the outer walls of the plurality of connecting rods (15). A plurality of second springs (17) are also installed on the outer walls of the connecting rods (15). The dust-proof net (16) is located between the plurality of second springs (17). The disassembly and assembly mechanism includes a plurality of fixing rods (6) fixedly connected to the outer walls on both sides of the connecting block (3). A movable plate (7) is slidably connected to the outer walls of every two fixing rods (6). A clamping block (8) is fixedly connected to the outer wall of the movable plate (7) facing the connecting block (3). The clamping block (8) penetrates through the connecting block (3) and extends into the interior of the slot (13), and is clamped with the buckle (12).

2. The building ventilation device according to claim 1, wherein: The disassembly and assembly mechanism further includes a plurality of L-shaped fixing plates (10) fixedly connected to the outer walls on both sides of the L-shaped air duct (1). The end of the fixing rod (6) far from the connecting block (3) is fixedly connected to the outer wall of the L-shaped fixing plate (10). A first spring (11) is installed on the outer wall of the fixing rod (6) between the movable plate (7) and the L-shaped fixing plate (10). A pull rod (9) is fixedly connected to the middle outer wall of the movable plate (7).

3. The building ventilation device according to claim 1, characterized in that: A rotating shaft (18) is rotatably connected to the inner wall of the connecting pipe (2). Two cams (19) are fixedly connected to the outer wall of the rotating shaft (18). The protruding parts of the two cams (19) are in contact with the outer wall of the dust-proof net (16). A motor (20) is fixedly installed on the outer wall of one side of the connecting pipe (2). The output end of the motor (20) penetrates through the connecting pipe (2) and is fixedly connected to one end of the rotating shaft (18).

4. The building ventilation device according to claim 1, wherein: A collection box (21) is inserted into the outer wall of the bottom of the connecting pipe (2). The collection box (21) is communicated with the inner cavity of the connecting pipe (2) and is located directly below the dust-proof net (16).

5. The building ventilation device according to claim 1, characterized in that: A limiting frame (22) is fixedly connected to the inner wall of the connecting pipe (2). A sealing groove (23) is formed in the outer wall of the limiting frame (22) facing the L-shaped air duct (1). One end of the L-shaped air duct (1) located inside the connecting pipe (2) abuts against the limiting frame (22). A sealing ring (24) is adhesively connected to the outer wall of one end of the L-shaped air duct (1) located inside the connecting pipe (2). The sealing ring (24) is adaptively clamped with the sealing groove (23).

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