Suction type exhaust device for shielding roof

Abstract

The utility model discloses a roof suction type exhaust device for a shielding room, which is provided with an exhaust mechanism, when the interior of a room body needs to be exhausted, an adjusting mechanism is firstly started to drive a turntable to rotate, so that a through hole in the surface of the turntable is overlapped with an air outlet pipe in the room body; at the moment, an exhaust fan in the exhaust pipe is started to suck air in the room body, then the air is exhausted from the interior of the exhaust pipe, meanwhile, part of noise can be generated in the exhaust process of the exhaust fan, sound insulation treatment can be conducted through a sound insulation layer in the exhaust pipe, and meanwhile during use, the noise is absorbed by a fixing block made of a sound absorption material in the exhaust pipe; in the air exhaust process, air is exhausted through the bent air holes in the fixing block, meanwhile, the multiple bent air holes in the fixing block enable airflow change to be more complex during use, and therefore dispersion and noise transmission reduction are facilitated, noise reduction is completed, and the service life of the air exhaust device is prolonged. And meanwhile, the filter cover above the exhaust pipe can prevent dust, leaves and other sundries from entering the device during use.

Description

Technical Field

[0001] This utility model relates to the technical field of suction-type exhaust devices for shielded roofs, specifically a suction-type exhaust device for shielded roofs. Background Technology

[0002] A "shielded room" typically refers to a room specifically designed to isolate external noise and electromagnetic interference, commonly used in laboratories, recording studios, hospitals, and high-end home theaters. These rooms are designed to provide a quiet and stable environment, ensuring minimal external interference; however, existing systems still have some shortcomings; for example;

[0003] For example, the top-mounted exhaust device for shielded rooms or anechoic chambers, as described in announcement number CN217655217U, includes a fixed frame, a fixed plate, a filter plate, a buckle, a locking ring, a filter screen, a partition, a ventilation hole, a first fixed frame, a second fixed frame, fan blades, a baffle, and a first rotating motor. While this device can be effectively used to exhaust air from the inside of the shielded room, the shielded room typically requires quiet operation, resulting in considerable noise during the exhaust process. Since noise reduction during exhaust is not easily achieved, we propose a top-mounted exhaust device for shielded rooms to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a roof-mounted suction exhaust device for shielded rooms, in order to solve the problem mentioned in the background art that it is inconvenient to reduce noise during the exhaust process when using a roof-mounted suction exhaust device for shielded rooms.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shielded roof-mounted suction exhaust device, comprising a housing and an exhaust pipe;

[0006] The chamber is equipped with an air outlet pipe, and the chamber is connected to a turntable via an adjustment mechanism. The turntable has a through hole, which is the same size as the air outlet pipe. The chamber is connected to an exhaust pipe via a connecting mechanism, and an exhaust fan is installed inside the exhaust pipe. The exhaust pipe is threadedly connected to a filter cover. The surface of the exhaust pipe is equipped with a sound insulation layer, and a fixing block is installed inside the exhaust pipe. The fixing block has ventilation holes inside.

[0007] As a preferred technical solution of this utility model, the adjustment mechanism includes a chamber, a motor, a first gear, a second gear, a rotating shaft, and a turntable. The motor is fixedly connected inside the chamber, and the motor is connected to the first gear. The first gear and the second gear mesh, the second gear is connected to the rotating shaft, and the rotating shaft is connected to the turntable.

[0008] As a preferred technical solution of this utility model, the connecting mechanism includes an exhaust pipe, a threaded rod, a connecting plate, a connecting block, and a sliding rod. The exhaust pipe is threadedly connected to the threaded rod, and the front end of the threaded rod is rotatably connected to the connecting plate. The connecting plate and the connecting block are slidably connected, and the connecting block and the sliding rod are slidably connected. The surface of the connecting block is provided with a protrusion, and the protrusion engages with a groove inside the chamber.

[0009] As a preferred embodiment of this utility model, the connecting mechanism is arranged in a ring array around the exhaust pipe, and all connecting mechanisms engage with the slots inside the chamber.

[0010] As a preferred technical solution of this utility model, the fixing block is made of sound-absorbing material, and the ventilation holes inside the fixing block are bent.

[0011] As a preferred embodiment of this utility model, the exhaust pipe is L-shaped, and the front end of the exhaust pipe is threadedly connected to the filter cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This roof-mounted exhaust device for shielding rooms is equipped with an exhaust mechanism. When it is necessary to exhaust the air inside the room, the adjustment mechanism is first activated to drive the turntable to rotate, so that the through hole on the surface of the turntable and the exhaust pipe inside the room are aligned. At this time, the exhaust fan inside the exhaust pipe is activated to draw the air inside the room into the exhaust pipe for discharge. At the same time, some noise is generated during the exhaust process of the exhaust fan, which can be soundproofed by the sound insulation layer inside the surface. During use, the fixed block made of sound-absorbing material inside absorbs the noise. During the air extraction process, the air is discharged through the bent ventilation holes inside the fixed block. At the same time, during use, the multiple bent ventilation holes inside the fixed block make the airflow change more complex, which helps to disperse and reduce the propagation of noise, thereby reducing noise. At the same time, the filter cover above the exhaust pipe can prevent dust, leaves and other debris from entering the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0014] Figure 2 This is a schematic diagram of the exhaust pipe structure of this utility model;

[0015] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Chamber body; 2. Motor; 3. First gear; 4. Second gear; 5. Rotating shaft; 6. Turntable; 7. Through hole; 8. Air outlet pipe; 9. Exhaust pipe; 10. Threaded rod; 11. Connecting plate; 12. Connecting block; 13. Slide rod; 14. Sound insulation layer; 15. Exhaust fan; 16. Fixing block; 17. Ventilation hole; 18. Filter cover. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution for a shielded roof suction exhaust device, including a chamber 1 and an exhaust pipe 9. The chamber 1 is provided with an exhaust pipe 8, and the chamber 1 is connected to a turntable 6 through an adjustment mechanism. The adjustment mechanism includes the chamber 1, a motor 2, a first gear 3, a second gear 4, a rotating shaft 5, and a turntable 6. The chamber 1 is fixedly connected to the motor 2, and the motor 2 is connected to the first gear 3. The first gear 3 and the second gear 4 mesh. The second gear 4 is connected to the rotating shaft 5, and the rotating shaft 5 is connected to the turntable 6. The turntable 6 is provided with a through hole 7, which is the same size as the exhaust pipe 8.

[0019] When it is necessary to vent the air inside the chamber 1, the motor 2 inside the chamber 1 is started first to drive the first gear 3 to rotate. Since the first gear 3 and the second gear 4 are meshed, the second gear 4 is driven to rotate, which in turn drives the rotating shaft 5 to rotate. The rotating shaft 5 then drives the turntable 6 to rotate, so that the through hole 7 on the surface of the turntable 6 and the air outlet pipe 8 inside the chamber 1 are aligned.

[0020] The chamber 1 is connected to the exhaust pipe 9 via a connecting mechanism. The connecting mechanism includes the exhaust pipe 9, a threaded rod 10, a connecting plate 11, a connecting block 12, and a sliding rod 13. The exhaust pipe 9 is threadedly connected to the threaded rod 10, and the front end of the threaded rod 10 is rotatably connected to the connecting plate 11. The connecting plate 11 and the connecting block 12 are slidably connected, and the connecting block 12 and the sliding rod 13 are slidably connected. The surface of the connecting block 12 is provided with protrusions, and the protrusions engage with the slots inside the chamber 1. The connecting mechanism is arranged in a ring around the exhaust pipe 9. The exhaust pipe 9 is arranged in a column, and the connecting mechanism engages with the slot inside the chamber 1. The exhaust pipe 9 is equipped with an exhaust fan 15, and the exhaust pipe 9 is threadedly connected to the filter cover 18. The surface of the exhaust pipe 9 is provided with a sound insulation layer 14, and the exhaust pipe 9 is equipped with a fixing block 16 inside. The fixing block 16 is provided with a vent hole 17 inside. The fixing block 16 is made of sound-absorbing material, and the vent hole 17 inside the fixing block 16 is bent. The exhaust pipe 9 is L-shaped, and the front end of the exhaust pipe 9 is threadedly connected to the filter cover 18.

[0021] In use, after inserting the multiple connecting blocks 12 below the exhaust pipe 9 into the corresponding slots inside the chamber 1, rotate the multiple threaded rods 10 above the exhaust pipe 9. This causes the threaded rods 10 to move the connecting plate 11. The connecting plate 11 then slides in the groove inside the connecting block 12, causing the connecting block 12 to slide above the sliding rod 13. This moves the connecting block 12, and the protrusion on its surface inserts into the slot inside the chamber 1 to install the exhaust pipe 9. Then, start the exhaust fan 15 inside the exhaust pipe 9 to draw in the gas from inside the chamber 1 and discharge it through the exhaust pipe 9. During the exhaust process of the exhaust fan 15, some noise is generated. This noise can be absorbed by the sound insulation layer 14 inside the device. At the same time, the fixed block 16 made of sound-absorbing material inside absorbs the noise. During the exhaust process, the gas is discharged through the bent vent holes 17 inside the fixed block 16. At the same time, the multiple bent vent holes 17 inside the fixed block 16 make the airflow change more complex, which helps to disperse and reduce the propagation of noise, thereby reducing the noise. Meanwhile, the filter cover 18 above the exhaust pipe 9 can prevent dust, leaves and other debris from entering the device.

[0022] Working principle: When using the roof-mounted exhaust system for shielded rooms, insert the multiple connecting blocks 12 below the exhaust pipe 9 into the corresponding slots inside the housing 1. Then, rotate the multiple threaded rods 10 above the exhaust pipe 9, causing the threaded rods 10 to move the connecting plate 11. The connecting plate 11 then slides in the groove inside the connecting block 12, causing the connecting block 12 to slide above the sliding rod 13, thus moving the connecting block 12. At this point, the protrusion on the surface of the connecting block 12 inserts into the slot inside the housing 1 to install the exhaust pipe 9. When exhaust is needed inside the housing 1, first start the motor 2 inside the housing 1 to drive the first gear 3 to rotate. Since the first gear 3 meshes with the second gear 4, it drives the second gear 4 to rotate, causing the second gear 4 to drive the rotating shaft 5 to rotate. The rotating shaft 5 then drives the turntable 6 to rotate, causing the through hole 7 on the surface of the turntable 6 to... After aligning with the exhaust pipe 8 inside the chamber 1, the exhaust fan 15 inside the exhaust pipe 9 is activated to draw the gas inside the chamber 1 into the exhaust pipe 9 for discharge. Simultaneously, some noise is generated during the exhaust process of the exhaust fan 15, which can be soundproofed by the sound insulation layer 14 inside the casing. During use, the internal sound-absorbing material of the fixing block 16 absorbs the noise. During the extraction process, the gas is discharged through the bent ventilation holes 17 inside the fixing block 16. The multiple bent ventilation holes 17 inside the fixing block 16 create more complex airflow changes, thus helping to disperse and reduce noise propagation, thereby reducing noise. Additionally, the filter cover 18 above the exhaust pipe 9 prevents dust, leaves, and other debris from entering the device, thus completing a series of functions. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shielded roof-mounted suction exhaust device, comprising a housing (1) and an exhaust pipe (9); Its features are: The chamber (1) is equipped with an air outlet pipe (8), and the chamber (1) is connected to a turntable (6) through an adjustment mechanism. The turntable (6) is equipped with a through hole (7), which is the same size as the air outlet pipe (8). The chamber (1) is connected to an exhaust pipe (9) through a connection mechanism. An exhaust fan (15) is installed inside the exhaust pipe (9), and the exhaust pipe (9) is threadedly connected to a filter cover (18). A sound insulation layer (14) is installed on the surface of the exhaust pipe (9), and a fixing block (16) is installed inside the exhaust pipe (9). A ventilation hole (17) is installed inside the fixing block (16).

2. The exhaust system for shielded roofs according to claim 1, characterized in that, The adjustment mechanism includes a chamber (1), a motor (2), a first gear (3), a second gear (4), a rotating shaft (5), and a turntable (6). The chamber (1) is fixedly connected to the motor (2), and the motor (2) is connected to the first gear (3). The first gear (3) and the second gear (4) mesh. The second gear (4) is connected to the rotating shaft (5), and the rotating shaft (5) is connected to the turntable (6).

3. A roof-mounted suction exhaust device according to claim 1, characterized in that, The connecting mechanism includes an exhaust pipe (9), a threaded rod (10), a connecting plate (11), a connecting block (12), and a sliding rod (13). The exhaust pipe (9) is threadedly connected to the threaded rod (10), and the front end of the threaded rod (10) is rotatably connected to the connecting plate (11). The connecting plate (11) and the connecting block (12) are slidably connected, and the connecting block (12) and the sliding rod (13) are slidably connected. The surface of the connecting block (12) is provided with a protrusion, and the protrusion engages with the slot inside the chamber (1).

4. A roof-mounted suction exhaust device according to claim 1, characterized in that, The connecting mechanisms are arranged in a ring array about the exhaust pipe (9), and all the connecting mechanisms engage with the slots inside the housing (1).

5. A roof-mounted suction exhaust device according to claim 1, characterized in that, The fixing block (16) is made of sound-absorbing material, and the ventilation holes (17) inside the fixing block (16) are bent.

6. A roof-mounted suction exhaust device according to claim 1, characterized in that, The exhaust pipe (9) is L-shaped, and the front end of the exhaust pipe (9) is threadedly connected to the filter cover (18).

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