CN209378620U - An automatic cleaning filter screen device for a fresh air system - Google Patents

Abstract

The utility model proposes an automatic cleaning filter screen device for a fresh air system, which includes a main body and a dust removal drive module connected to the main body. The main body has a first side and a second side. The first side is used to connect the air duct, and the second side It is used to connect the filter suction port of the fresh air device. There is a horizontal guide rail in the main body, and a dust removal brush reciprocating along the horizontal guide rail is arranged in the main body. A suction nozzle is arranged in the dust removal brush, and there is a cleaning part on one side of the suction nozzle. The dust removal drive module includes a control device and a first drive motor, the control device is electrically connected to the first drive motor and controls the rotation of the first drive motor based on the received control signal to drive the dust removal brush to reciprocate along the horizontal guide rail , the dust removal brush is provided with a second drive motor, which is electrically connected to the control device and controls the suction nozzle to reciprocate along the dust removal brush based on the command.

Description

An automatic cleaning filter screen device for a fresh air system

technical field

The utility model relates to the field of automatic cleaning filter screen devices, in particular to an automatic cleaning filter screen device for a fresh air system.

Background technique

Air filters are widely used in HVAC engineering and air-processing mechanical equipment. At the same time, because of their working nature, they are easy to absorb dust and mosquitoes in the air. They are easy to clog after long-term operation and need to be replaced frequently. Mainly manual replacement. Since the filter screen is usually located within the suspended ceiling of the house, if the filter screen is replaced manually regularly, it is cumbersome and inconvenient to replace. Frequent manual replacement will bring inconvenience to the homeowner. For example, use a filter screen with a square metal frame, and set a filter screen installation guide rail at the entrance of the fresh air fan and other equipment. Insert a new filter into the guide rail.

Utility model content

Based on the above problems, the purpose of this utility model is to at least solve one of the technical defects. An automatic cleaning filter screen device for the fresh air system is proposed, which can automatically remove the dust on the filter screen, thereby prolonging the service life of the filter screen. In order to achieve the above object, the utility model adopts the following technical solutions:

An automatic cleaning filter device for a fresh air system, characterized in that it includes a body and a dust removal drive module connected to the body, the body includes a first side for connecting to the air duct, and a second side for connecting to the filter of the fresh air device. The net suction port, the body is provided with a horizontal guide rail, the body is provided with a dust removal brush reciprocating along the horizontal guide rail, the dust removal brush is provided with a suction nozzle; the dust removal drive module includes a control device, a first The drive motor, the control device is electrically connected to the first drive motor and controls the first drive motor to rotate based on the received control signal to drive the dust removal brush to reciprocate along the horizontal guide rail.

Preferably, the self-cleaning filter device further includes a second drive motor, which is electrically connected to the control device and controls the suction nozzle to reciprocate along the dust removal brush based on instructions.

Preferably, the dust removal brush includes a second drive motor, a second drive wheel, a second driven wheel, and a second conveyor belt, the second drive wheel is connected to the second drive motor, the second conveyor belt is respectively sleeved on the second drive wheel, and the second drive wheel is connected to the second drive wheel. Two driven wheels, the second conveyor belt is connected to the suction nozzle, and the second drive motor rotates based on the command to drive the second transmission rotation to make the suction nozzle move up and down along the dust removal brush.

Preferably, one side of the suction nozzle is provided with bristles, the width of the bristles is larger than the diameter of the suction nozzle, and the rotation of the second driving motor drives the suction nozzle to move downward by a preset distance.

Preferably, the control device controls the rotation of the second driving motor to drive the suction nozzle to move down a preset distance, and the preset distance is less than the width of the bristles.

Preferably, the self-cleaning filter device also includes a dust suction assembly and a dust suction pipeline communicated with the dust suction assembly, the suction nozzle is connected to the dust suction pipeline, the dust suction assembly is provided with a dust suction outlet, and the The dust suction component discharges the dust inhaled by the suction nozzle through the dust suction discharge port.

Preferably, the self-cleaning filter device further includes a first storage groove for accommodating part of the dust suction pipe, the first storage groove is arranged between the dust suction assembly and the horizontal guide rail , The dust removal brush is provided with a second storage groove for the dust suction pipe for accommodating part of the dust suction pipe.

Preferably, the control device controls the rotation of the second driving motor to drive the suction nozzle to move upward to the first position.

Preferably, the control device is electrically connected to the first drive motor and the second drive motor respectively, the first drive motor is used to control the reciprocating movement of the dust removal brush along the horizontal guide rail based on the instruction of the control device, and the second drive motor The motor is used to control the suction nozzle to move up and down along the dust removal brush based on the instruction of the control device.

Preferably, the dust removal drive module further includes a first transmission belt, a first drive wheel for driving the transmission belt, and a first driven wheel, the first drive wheel is connected to the first drive motor, and the first driven wheel is fixed to the end of the dust collection assembly. The first transmission belt is sleeved on the first driving wheel and the first driven wheel, one side of the first transmission belt is connected with the dust collection brush, and the first transmission belt drives the dust collection brush to reciprocate along the horizontal guide rail.

The embodiment of the utility model also provides a fresh air device, which is equipped with the above-mentioned automatic cleaning filter device.

Compared with the solutions in the prior art, the utility model has the following advantages:

The automatic cleaning filter screen device proposed by the embodiment of the utility model automatically completes all cleaning of the filter screen and reduces the replacement frequency of the filter screen, has a high degree of intelligence, and saves manpower operations.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic structural view of the connection between the automatic cleaning filter screen device and the fresh air device of the embodiment of the present invention;

Fig. 2a, 2b are the three-dimensional structural schematic diagrams of the automatic cleaning screen device of the utility model embodiment;

Figure 3-7 is a schematic diagram of the internal structure of the automatic cleaning filter screen device of the embodiment of the present invention

FIG. 8 is a schematic diagram of the control flow of the automatic cleaning filter screen device according to the embodiment of the present invention.

Detailed ways

The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are used to illustrate the utility model and not limit the scope of the utility model. The implementation conditions adopted in the examples can be further adjusted as the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.

Please refer to Fig. 1, which is a structural schematic diagram showing the connection between the automatic cleaning filter device proposed by the present invention and the fresh air device. The first side and the second side of the body 1 of the automatic cleaning filter device 200 have flanges respectively. One side is provided with a flange for connecting to an air duct (not shown), and the second side is connected to a suction port 102 with a filter screen 101 of a fresh air device 100 (such as equipment).

Please refer to Fig. 2a, 2b is a three-dimensional structural diagram of the automatic cleaning filter device according to the embodiment of the present invention. The automatic cleaning filter device 200 includes a main body 1, and the first side 1a of the main body 1 is provided with a flange for connecting to the fan. The second side 1b is provided with a flange to connect to the fresh air device (facing the filter screen). The main body 1 contains a dust removal brush 10, and the dust removal brush 10 is provided with cleaning parts (bristles 10a, the bristles are fixed on the side of the suction nozzle, Suction nozzle moves together) and first suction nozzle 10b (in order to absorb dust), and the height of removal part is higher than the height of suction nozzle, and the filter screen that removal part removes is sucked off by suction nozzle like this and is discharged through dust suction pipe. The inside of the body 1 (preferably, the bottom) is connected to the dust removal drive module 1c, and the dust removal drive module drives the dust removal brush 10 to move and then removes the dust on the filter screen facing the dust removal brush, and the removed dust passes through the dust suction pipe 30 ( dust suction hose) is recovered to the dust removal drive module 1c. Preferably, the removed dust is discharged through the dust suction outlet 60 .

In this embodiment, the relative position of the bristles and the nozzle is fixed, and the bristles move together with the nozzle, and the moving distance satisfies: diameter of the nozzle<moving distance<covering width of the bristles.

Next, the internal structure of the automatic cleaning filter device will be described in detail in combination with Figure 3-7.

Please refer to Fig. 3 for the structural schematic diagram of the automatic cleaning filter device. The bottom of the body of the automatic cleaning filter device is provided with a horizontal guide rail 20 (the opposite side also has a guide rail, not shown in the figure), and the body is provided with a horizontal guide rail 20. 20 is a reciprocating dust removal brush 10, and the dust removal brush 10 can move along the horizontal guide rail 20 from one side of the body (that is, the filter screen) to the other side. The dust removal brush 10 is provided with a first suction nozzle 10b, the bottom of the body is connected to the dust removal drive module, which includes a control device 3, and is electrically connected to the first drive motor 41 and the second drive motor 42 of the control device, wherein the control device 3 receives After the cleaning start signal is received, the first drive motor 41 is controlled to rotate, driving the dust removal brush 10 to reciprocate along the horizontal guide rail 20 . After the dust removal brush 10 reciprocates once, the control device controls the rotation of the second drive motor 42 to drive the dust inlet to move down a predetermined distance. In one embodiment, after the control device 3 receives the cleaning start signal, firstly the second drive motor 42 rotates and then controls the first drive motor 41 to rotate to carry out the cleaning operation.

In the above-mentioned embodiment, the automatic cleaning filter device also includes a dust suction assembly 50 and a dust suction pipe 30 (dust suction hose) communicated with the dust suction assembly 50, wherein the second suction nozzle 11 is connected to the dust suction pipe 30, The dust suction assembly 50 is provided with a dust suction discharge port 60 , and the dust sucked by the dust suction assembly 50 through the second suction nozzle 11 (first suction nozzle 10 b ) is discharged through the dust suction discharge port 60 .

In one embodiment, the automatic cleaning filter device also includes a dust suction assembly 50 and a dust suction pipe 30 (dust suction hose) communicating with the dust suction assembly 50, wherein the dust suction assembly 50 is located in the dust removal drive module, the second Two suction nozzles 11 (the first suction nozzle 10b) are connected to the dust suction pipeline 30, the dust suction assembly 50 is provided with a dust suction outlet 60, and the dust suction assembly 50 is sucked by the second suction nozzle 11 (the first suction nozzle 10b) The dust is discharged through the dust suction outlet 60.

In one embodiment, the automatic cleaning filter device further includes a first storage slot 31 for accommodating the dust suction duct 30, and the first storage slot 31 for the dust suction duct is arranged on the dust suction assembly 50 and the horizontal guide rail 20 between.

In one embodiment, there are horizontal guide rails up and down inside the body of the automatic cleaning filter device, so that the movement of the dust removal brush from one side to the other side is limited by the guide rails.

In one embodiment, the bristle width L1 is greater than the above-mentioned preset distance L2, so that the dust removal brush 10 can suck the dust from each position of the filter screen from the second suction nozzle 11 (the first suction nozzle 10b) to the interior. In the dust suction assembly 50. The bristle width is 1.01 to 2.0 times the preset distance L2. The bristle width is 1.01 to 1.5 times the preset distance L2.

Please refer to Figure 4, which is a cross-sectional view of the automatic cleaning filter device for automatic cleaning of the automatic cleaning filter device. The filter is provided with a first limit switch K1, a second limit switch K2, a third limit switch K3 and a fourth limit switch. The limit switch K4 is used to limit the first position, the second position, the third position and the fourth position respectively. The specific control method is: after the device receives the cleaning start signal, it controls the rotation of the first drive motor 41 to drive the dust removal brush 10 After moving along the horizontal guide rail 20 to the third position defined by the third limit switch K3, the control device controls the rotation of the second driving motor 42 to drive the second suction nozzle 11 to move upward to the first position to complete the initial reset; then, start The dust suction assembly 50, the control device controls the first drive motor 41 to rotate, drives the dust removal brush 10 to move along the horizontal guide rail 20 to the fourth position defined by the fourth limit switch K4, and then controls the dust removal brush 10 to move along the horizontal guide rail 20 to the fourth position. At the third position defined by the three limit switches K3, the cleaning of the width L1 in the longitudinal direction of the automatic cleaning screen device has been completed. The control device controls the rotation of the second drive motor 42 to drive the second suction nozzle 11 to move downward for a preset distance L2, and then the control device controls the rotation of the first drive motor 41 to drive the dust removal brush 10 to move horizontally. In this way, the cycle control of the control device first The drive motor 41 and the second drive motor 42 rotate until the second suction nozzle 11 moves to the second position defined by the second limit switch K2. After the control device controls the first drive motor 41 to drive the dust removal brush 10 to reciprocate horizontally once, the process is completed. Cleaning of the entire filter.

The utility model is used to automatically clean the filter screen device including a first drive motor 41 and a second drive motor 42, the first drive motor 41 controls the horizontal (first direction) reciprocating movement of the dust removal brush 10, and the second drive motor 42 controls the second suction brush 42 The nozzle 11 moves up and down (the second direction), so that the second suction nozzle 11 (the first suction nozzle 10b) moves horizontally on the filter screen (moves in the first direction) and then moves up and down (moves in the second direction), so as to ensure the smoothness of the filter screen. Dust at each position is sucked by the second suction nozzle 11 .

In one embodiment, the automatic cleaning filter device includes a first drive motor 41 and a second drive motor 42, the first drive motor 41 is arranged in the dust removal drive module, and is used to control the horizontal (first direction) reciprocation of the dust removal brush 10 Move, the second drive motor 42 is arranged in the dust removal brush, in order to control the second suction nozzle 11 to move up and down (second direction), so that the second suction nozzle 11 (first suction nozzle 10b) moves horizontally on the filter screen (first suction nozzle 10b) direction) and then move up and down (moving in the second direction) to ensure that the dust at each position of the filter screen is absorbed by the second suction nozzle 11.

Please refer to Figure 5-7, which is a cross-sectional view showing the connection between the dust removal drive module 1c and the dust removal brush. The dust removal drive module 1c includes a first drive motor 41, a control device 2, a dust suction assembly 50, a first transmission belt A driving wheel 3a (first driving wheel) and a driving wheel 3b (first driven wheel) of a transmission belt 3, the first transmission belt 3 is sleeved on the driving wheel 3a (first driving wheel) and driven wheel 3b (first driven wheel) The driving wheel 3a is connected to the first driving motor 41, the driven wheel 3b is fixed to the end of the dust suction assembly 50, one end of the dust removal brush is connected to the first transmission belt 3, and one end of the dust suction assembly 50 is provided with an interface, which is connected to the suction One end of the dust pipe 30 and the other end of the dust suction pipe 30 are connected to the dust removal brush. Preferably, the dust removal brush is also provided with a second storage groove for storing the dust suction pipe. Preferably, the dust suction duct 30 is partially accommodated in the first storage groove 31 of the dust suction duct. The cables of the first drive motor 41 and the second drive motor 42 are arranged through the preset cable 43 holes (see FIG. 7 ). The first transmission belt 3 is connected to one end (such as the bottom) of the dust removal brush. After the first driving motor is started, the dust suction brush 10 is translated left and right (moving along the horizontal guide rail) by the first transmission belt 3, and the dirt on the filter screen is brushed away. After the dust leaves the filter screen, it is sucked by the suction nozzle of the dust suction component in the middle of the bristles, and is discharged to the outside through the discharge port of the dust suction component. There are bristles next to the nozzle, the width of the bristles is larger than that of the nozzle, and the preset distance is slightly smaller than the width of the bristles.

Please refer to Fig. 6a, Fig. 6b shows the cross-sectional view of the dust removal brush, which includes a second drive motor 41, a drive wheel 4a (second drive wheel), a driven wheel 4b (second driven wheel), and the drive wheel 4a is connected to the drive motor 41. The second transmission belt 5 is sleeved on the driving wheel 4a and the driven wheel 4b. The second transmission belt 5 is connected to one side of the suction nozzle (also called the dust suction port). After the drive is started, the second transmission belt 5 makes the second suction nozzle 11 Move up and down to suck up the dirt on the filter. After the dirt is separated from the filter, it will be discharged to the outside through the outlet of the vacuum assembly.

Please refer to FIG. 8 which is a schematic diagram of the control flow of the automatic cleaning method of the automatic cleaning filter device. The shown method includes:

Step S1, controlling the dust removal brush to reset according to the received control signal. Wherein, controlling the reset of the dust removal brush includes controlling the rotation of the first drive motor according to the received control signal to drive the dust removal brush to move to the third position, and the reset of the dust removal brush also includes controlling the rotation of the second drive motor so that the suction nozzle of the dust removal brush Move to the first position to realize the reset of the automatic cleaning filter screen device.

Step S2, controlling the dust removal brush to complete a reciprocating movement along the horizontal guide rail. The control device controls the dust removal brush to move to the fourth position along the horizontal guide rail, and then controls the dust removal brush to return to the third position along the horizontal guide rail, so as to realize the cleaning of the dust removal brush in the longitudinal double L1 width.

Step S3, controlling the suction nozzle in the dust removal brush to move downward by a preset distance. The control device controls the rotation of the second driving motor, so that the suction nozzle of the dust removal brush moves downward by a preset distance L2.

Step S4, judging whether the suction nozzle has moved to a preset position, if not, repeating steps S2 and S3, if yes, controlling the dust removal brush to stop moving. It is judged whether the suction nozzle has moved to the second position, and if so, the dust removal brush is controlled to stop cleaning. If the suction nozzle has not moved to the second position, control the dust removal brush to move from the third position to the fourth position along the horizontal guide rail, then return from the fourth position to the third position along the horizontal guide rail, and control the suction nozzle to move down to the preset position For distance L2, repeat step S4. Cleaning is completed until the position of the suction nozzle is moved to the second limit switch K2.

In one embodiment, the automatic cleaning method for the automatic cleaning filter device of the present invention further includes step S5: controlling the reset of the dust removal brush. In the above embodiment, for the convenience of next use and saving time, after the suction nozzle moves to the second position, the dust removal brush is controlled to move to the third position along the horizontal guide rail, and the suction nozzle is controlled to move to the first position to complete the cleaning of the dust removal brush. reset.

In the automatic cleaning filter device proposed by the embodiment of the utility model, the control device controls the first drive motor to rotate after receiving the control signal to drive the dust removal brush to reciprocate along the horizontal guide rail for one or more cycles, and then the control device controls the second drive The rotation of the motor drives the suction nozzle to move up and down, thereby automatically completing all the cleaning of the filter screen, which has a high degree of intelligence and saves manpower.

The first driving motor is also called the first motor, and the second driving motor is also called the second motor. Preferably, the second motor is configured in the dust removal brush, and the dust removal brush also includes a second driving wheel, a second driven wheel, and a second transmission belt. The dust removal assembly includes a first driving motor, a first driving wheel, a first driven wheel, and a first transmission belt.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow people familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. All equivalent transformations or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. a kind of automated cleaning filter net device of fresh air system, which is characterized in that driven including ontology, the dedusting being connect with ontology Mould group, the ontology include the first side to connect air hose, strainer suction inlet of the second side to connect aeration device, and described Horizontal guide rail is provided in body, the ontology is equipped with the dust removal brush moved back and forth along horizontal guide rail, setting in the dust removal brush There is suction nozzle；The dedusting driving mould group includes control device, the first drive motor, and the control device is electrically connected the first driving Motor simultaneously drives the dust removal brush reciprocal along horizontal guide rail based on received control signal control the first drive motor rotation Movement.

2. automated cleaning filter net device according to claim 1, which is characterized in that also include the second drive motor, electricity Property the connection control device and control the suction nozzle based on instruction and moved back and forth along the dust removal brush.

3. automated cleaning filter net device according to claim 2, which is characterized in that the dust removal brush includes the second driving Motor, the second driving wheel, the second driven wheel, the second conveyer belt, the second driving wheel connect the second drive motor, the second conveyer belt point It is not socketed on the second driving wheel, the second driven wheel, second transmits band connection suction nozzle, and the second drive motor rotates drive based on instruction Second transmission rotation moves up and down suction nozzle along dust removal brush.

4. automated cleaning filter net device according to claim 2, which is characterized in that the side of the suction nozzle is equipped with bristle, The width of the bristle is greater than the diameter of suction nozzle, second drive motor rotation drive the suction nozzle move down it is default away from From.

5. automated cleaning filter net device according to claim 4, which is characterized in that the control device control described second Drive motor rotation drives the suction nozzle to move down pre-determined distance, and the pre-determined distance is less than bristle width.

6. automated cleaning filter net device according to claim 1, which is characterized in that further include dust suction subassembly and with dust suction group The dust sucting pipeline of part connection, the suction nozzle connect the dust sucting pipeline, and the dust suction subassembly is equipped with dust suction outlet, the dust suction The dust that component sucks suction nozzle is discharged via dust suction outlet.

7. automated cleaning filter net device according to claim 6, which is characterized in that further include for suction described in collecting part The first accommodating groove of dust sucting pipeline of dirt pipeline, first accommodating groove be set to the dust suction subassembly and the horizontal guide rail it Between, the second accommodating groove of dust sucting pipeline for dust sucting pipeline described in collecting part is equipped in dust removal brush.

8. automated cleaning filter net device according to claim 1, which is characterized in that second driving of control device control Motor rotation, drives suction nozzle to be moved upward to first position.

9. automated cleaning filter net device according to claim 1, which is characterized in that control device is respectively and electrically connected to One drive motor, the second drive motor, first drive motor is based on the instruction of control device to control the dust removal brush It is moved back and forth along horizontal guide rail, second drive motor is based on the instruction of control device in controlling the suction nozzle along dedusting Brush moves up and down.

10. automated cleaning filter net device according to claim 1, which is characterized in that

Dedusting driving mould group also includes the first transmission belt, the first driving wheel, the first driven wheel, the first driving of the first driving wheel connection Motor, the first driven wheel are fixed on the end of dust suction subassembly, and the first transmission belt is socketed on the first driving wheel, the first driven wheel, the The side of one transmission belt connects absorbent brush, drives absorbent brush to move back and forth along horizontal guide rail by the first transmission belt.