A building heating, ventilation and air conditioning device

Abstract

The utility model provides a kind of building heating ventilation device, it is related to heating ventilation equipment technical field.A kind of building heating ventilation device, including ventilation shell, the inside fixed connection of ventilation shell has filter screen and electric fan, the inside of ventilation shell is equipped with the cleaning mechanism of cleaning filter screen side face, the cleaning mechanism includes the sliding rod sliding in the inside of ventilation shell.By starting electric fan to filter outside air by filter screen and blow to the other end of ventilation shell, by driving sliding rod to lift and slide, clean the side face of filter screen by the action of brush, then by gas supply mechanism to the inside of backblowing pipe transport gas, gas is sprayed by the gas jet head on backblowing pipe, to filter screen is blown from inside to outside, cooperate cleaning mechanism, greatly improve the cleaning effect of filter screen, without personnel regularly dismounting cleaning dredging, save time and effort.

Description

Technical Field

[0001] This utility model relates to a ventilation device, specifically a building heating, ventilation and air conditioning (HVAC) device, and belongs to the technical field of HVAC equipment. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is a component of buildings. It includes three aspects: heating, ventilation, and air conditioning. It also trains people to work in the fields of building environmental control, building energy conservation, and intelligent building facilities. It has public facility systems such as air conditioning, heating, ventilation, building water supply and drainage, and gas supply. Ventilation is the process of supplying air into or exhausting air from rooms, using outdoor air (called fresh air or fresh air) to replace the air inside the building (called indoor air). It is usually divided into natural ventilation and mechanical ventilation.

[0003] Chinese Patent Publication No. CN212538111U discloses a building heating, ventilation and air conditioning device, which relates to the field of building equipment technology. It includes a housing, an air inlet on one side of the housing, multiple sound-absorbing panels fixedly connected to the inner cavity of the housing, a support platform at the bottom of the inner cavity of the housing, the bottom of the support platform being fixedly connected to the top of one of the sound-absorbing panels, a drive motor fixedly connected to the top of the support platform, a fan blade rotatably connected to the output end of the drive motor, a first dust filter screen snapped onto one side of the air inlet, and a second dust filter screen snapped onto the inner cavity of the housing and the side of the fan blade.

[0004] However, the inventor of the above device believes that there are certain defects. The above device uses a filter to filter and intercept dust and impurities in the air, but after a period of use, it needs to be manually disassembled, cleaned and unclogged, which is time-consuming and laborious. Therefore, this utility model provides a building heating, ventilation and air conditioning device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a building heating, ventilation and air conditioning device to solve the above-mentioned problems, so as to solve the problem that the existing technology uses a filter screen to filter and intercept dust and impurities in the air, but after a period of use, it needs to be manually disassembled, cleaned and unclogged, which is time-consuming and labor-intensive.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: a building heating, ventilation and air conditioning device, including a ventilation shell, a filter screen and an electric fan fixedly connected inside the ventilation shell, a cleaning mechanism for cleaning one side of the filter screen provided inside the ventilation shell, the cleaning mechanism including a sliding rod sliding inside the ventilation shell, a brush for cleaning the filter screen fixedly connected to one side of the sliding rod, a back-blowing mechanism for back-blowing the other side of the filter screen provided inside the ventilation shell, the back-blowing mechanism including an inner box fixedly connected inside the ventilation shell, a back-blowing pipe rotatably connected to the inner box, a plurality of nozzles pointing towards the filter screen fixedly connected to the back-blowing pipe, a top box fixedly connected to the top of the ventilation shell, and an air supply mechanism for supplying air to the back-blowing pipe provided inside the top box.

[0009] Preferably, a rotating screw is rotatably connected inside the ventilation housing, and the sliding rod is threaded onto the rotating screw. A motor that drives the rotating screw to rotate is fixedly connected inside the top box. By starting the motor, the rotating screw is driven to rotate, causing the sliding rod to slide up and down inside the ventilation housing.

[0010] Preferably, the air supply mechanism includes an air pump fixedly connected inside the top box. The input end of the air pump is connected to the ventilation housing through an air inlet pipe. The output end of the air pump is fixedly connected to an exhaust pipe. The other end of the exhaust pipe is rotatably connected to one end of the backflush pipe. By starting the air pump, air is drawn from inside the ventilation housing and then delivered to the inside of the backflush pipe.

[0011] Preferably, a diverter pipe is fixedly connected to the exhaust pipe, one end of which extends into the interior of the inner box. Multiple drive plates are fixedly connected to the outer surface of the backflush pipe, and one end of the diverter pipe is located directly above the drive plate. The airflow flowing inside the exhaust pipe is diverted through the diverter pipe, and the airflow blown out by the diverter pipe pushes the drive plate, thereby driving the backflush pipe to rotate on the inner box.

[0012] Preferably, one end of the ventilation housing is provided with a dust discharge trough, and there are two dust discharge troughs. The dust and impurities cleaned off the filter screen are discharged into the interior of the ventilation housing through the dust discharge troughs.

[0013] Preferably, the inner wall of the ventilation housing is provided with a sliding groove, and the two ends of the sliding rod slide in the two sliding grooves respectively. Through the provided sliding grooves, the sliding rod can be stably moved up and down inside the ventilation housing.

[0014] Preferably, both ends of the ventilation housing are detachably connected to grilles, which prevent large impurities from entering the interior of the ventilation housing.

[0015] This utility model provides a building heating, ventilation and air conditioning device, which has the following beneficial effects:

[0016] 1. This device uses an electric fan to blow outside air through a filter screen to the other end of the ventilation housing. The sliding rod is driven to move up and down, and the brush cleans one side of the filter screen. Then, the air supply mechanism delivers air into the backflush pipe. The air is sprayed out through the jet nozzle on the backflush pipe to backflush the filter screen from the inside out. Combined with the cleaning mechanism, it greatly improves the cleaning effect of the filter screen. There is no need for personnel to disassemble, clean and unclog it regularly, saving time and effort.

[0017] 2. The device draws air from inside the ventilation housing by starting the air pump through the air inlet pipe, and then delivers it to the inside of the backflush pipe through the exhaust pipe. The gas is then divided by the diverter pipe, and the divided gas impacts the drive plate to drive the backflush pipe to rotate inside the inner box. This causes the backflush pipe to rotate on one side of the filter screen, so as to clean the filter screen evenly by backflushing. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 An installation perspective view of the cleaning mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the ventilation housing of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of point A.

[0022] [Explanation of Key Component Symbols]

[0023] 1. Ventilation housing; 11. Top box; 12. Ash discharge chute; 2. Filter screen; 3. Sliding rod; 31. Rotating screw; 32. Motor; 4. Electric fan; 5. Air pump; 51. Inlet pipe; 52. Exhaust pipe; 53. Diverter pipe; 6. Backflush pipe; 61. Jet nozzle; 62. Drive plate; 7. Inner box. Detailed Implementation

[0024] This utility model provides a building heating, ventilation and air conditioning device.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A building heating, ventilation and air conditioning device includes a ventilation housing 1, a filter screen 2 and an electric fan 4 fixedly connected inside the ventilation housing 1, a top box 11 fixedly connected to the top of the ventilation housing 1, and grilles that can be detachably connected to both ends of the ventilation housing 1. The grilles prevent large impurities from being drawn into the ventilation housing 1. The air circulation inside the ventilation housing 1 is accelerated by starting the electric fan 4, and the air drawn into the ventilation housing 1 is filtered by the filter screen 2.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 3 The ventilation housing 1 is equipped with a cleaning mechanism for cleaning one side of the filter screen 2. The cleaning mechanism includes a sliding rod 3 that slides inside the ventilation housing 1. A brush for cleaning the filter screen 2 is fixedly connected to one side of the sliding rod 3. A sliding groove is provided on the inner side wall of the ventilation housing 1. The two ends of the sliding rod 3 slide in the two sliding grooves respectively. By driving the sliding rod 3 to slide up and down inside the ventilation housing 1, the brush on the side of the sliding rod 3 cleans one side of the filter screen 2.

[0027] Please refer to it again. Figure 1 , Figure 2 and Figure 3 The ventilation housing 1 is rotatably connected to a rotating screw 31, and a sliding rod 3 is threadedly connected to the rotating screw 31. The top box 11 is fixedly connected to a motor 32 that drives the rotating screw 31 to rotate. One end of the ventilation housing 1 is provided with a dust discharge trough 12. There are two dust discharge troughs 12. By starting the motor 32, the rotating screw 31 is driven to rotate, which causes the sliding rod 3 to slide up and down inside the ventilation housing 1. The dust that is cleaned is discharged through the dust discharge trough 12.

[0028] Please refer to it again. Figure 1 , Figure 3 and Figure 4 The ventilation housing 1 is equipped with a back-blowing mechanism that back-blowing the other side of the filter screen 2. The back-blowing mechanism includes an inner box 7 fixedly connected inside the ventilation housing 1. A back-blowing pipe 6 is rotatably connected to the inner box 7. Multiple nozzles pointing towards the filter screen 2 are fixedly connected to the back-blowing pipe 6. The back-blowing pipe 6 is L-shaped. One end of the back-blowing pipe 6 is rotatably connected to the inside of the inner box 7. By supplying gas into the inside of the back-blowing pipe 6, the gas is finally sprayed out through the jet nozzle 61 and blown towards the other side of the filter screen 2.

[0029] Please refer to it again. Figure 1 , Figure 3 and Figure 4The top box 11 is equipped with an air supply mechanism for supplying air to the backflush pipe 6. The air supply mechanism includes an air pump 5 fixedly connected inside the top box 11. The input end of the air pump 5 is connected to the ventilation housing 1 through an air inlet pipe 51. The output end of the air pump 5 is fixedly connected to an exhaust pipe 52. The other end of the exhaust pipe 52 is rotatably connected to one end of the backflush pipe 6. By starting the air pump 5, air is drawn from inside the ventilation housing 1 and then delivered to the inside of the backflush pipe 6 through the exhaust pipe 52. A sealing ring is provided at one end of the exhaust pipe 52 and one end of the backflush pipe 6 to improve the sealing between the exhaust pipe 52 and the backflush pipe 6.

[0030] Please refer to it again. Figure 1 , Figure 3 and Figure 4 A diverter pipe 53 is fixedly connected to the exhaust pipe 52. One end of the diverter pipe 53 extends into the interior of the inner box 7. Multiple drive plates 62 are fixedly connected to the outer surface of the backflush pipe 6. One end of the diverter pipe 53 is located directly above the drive plate 62. The air inside the exhaust pipe 52 is diverted through the diverter pipe 53. The gas ejected from one end of the diverter pipe 53 blows towards the drive plate 62, driving the backflush pipe 6 to rotate and uniformly backflush the other side of the filter screen 2.

[0031] Working principle: The air circulation inside the ventilation housing 1 is accelerated by starting the electric fan 4. The air drawn into the ventilation housing 1 is filtered by the filter screen 2. After a period of use, the motor 32 is started to drive the rotating screw 31 to rotate. The brush on the side of the sliding rod 3 cleans one side of the filter screen 2. The air pump 5 is started to draw air from the ventilation housing 1 and then delivers it to the inside of the back-blowing pipe 6 through the exhaust pipe 52. The air sprayed by the jet nozzle 61 on the back-blowing pipe 6 back-blowing the other side of the filter screen 2. The air inside the exhaust pipe 52 is divided by the diversion pipe 53. The air sprayed from one end of the diversion pipe 53 blows towards the drive plate 62, driving the back-blowing pipe 6 to rotate and evenly back-blowing the other side of the filter screen 2. The dust removed is discharged from the inside of the ventilation housing 1 through the dust discharge trough 12.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A building heating, ventilation and air conditioning device, comprising a ventilation housing (1), characterized in that: The ventilation housing (1) is fixedly connected to a filter screen (2) and an electric fan (4). The ventilation housing (1) is provided with a cleaning mechanism for cleaning one side of the filter screen (2). The cleaning mechanism includes a sliding rod (3) that slides inside the ventilation housing (1). A brush for cleaning the filter screen (2) is fixedly connected to one side of the sliding rod (3). The ventilation housing (1) is provided with a back-blowing mechanism for back-blowing the filter screen (2) on the other side. The back-blowing mechanism includes an inner box (7) fixedly connected inside the ventilation housing (1), a back-blowing pipe (6) rotatably connected to the inner box (7), and a plurality of nozzles (61) pointing to the filter screen (2) fixedly connected to the back-blowing pipe (6). A top box (11) is fixedly connected to the top of the ventilation housing (1), and an air supply mechanism for supplying air to the back-blowing pipe (6) is provided inside the top box (11).

2. A building heating, ventilation and air conditioning device according to claim 1, characterized in that: The ventilation housing (1) is rotatably connected to a rotating screw (31), the sliding rod (3) is threadedly connected to the rotating screw (31), and the top box (11) is fixedly connected to a motor (32) that drives the rotating screw (31) to rotate.

3. A building heating, ventilation and air conditioning device according to claim 1, characterized in that: The air supply mechanism includes an air pump (5) fixedly connected inside the top box (11). The input end of the air pump (5) is connected to the ventilation housing (1) through an air inlet pipe (51). The output end of the air pump (5) is fixedly connected to an exhaust pipe (52). The other end of the exhaust pipe (52) is rotatably connected to one end of the backflush pipe (6).

4. A building heating, ventilation and air conditioning device according to claim 3, characterized in that: A split pipe (53) is fixedly connected to the exhaust pipe (52). One end of the split pipe (53) extends into the interior of the inner box (7). Multiple drive plates (62) are fixedly connected to the outer surface of the backflush pipe (6). One end of the split pipe (53) is located directly above the drive plate (62).

5. A building heating, ventilation and air conditioning device according to claim 1, characterized in that: One end of the ventilation housing (1) is provided with a dust discharge trough (12), and there are two dust discharge troughs (12).

6. A building heating, ventilation and air conditioning device according to claim 1, characterized in that: The inner wall of the ventilation housing (1) is provided with a sliding groove, and the two ends of the sliding rod (3) slide in the two sliding grooves respectively.

7. A building heating, ventilation and air conditioning device according to claim 1, characterized in that: Both ends of the ventilation housing (1) are detachably connected to grilles.

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